Restoring authorship annotation for <serxa@yandex-team.ru>. Commit 1 of 2.

458 files changed, 30235 insertions, 30235 deletions

diff --git a/library/cpp/actors/core/actor.cpp b/library/cpp/actors/core/actor.cpp
index 6f9ba6a42b..d46d3e9b50 100644
--- a/library/cpp/actors/core/actor.cpp
+++ b/library/cpp/actors/core/actor.cpp
@@ -1,7 +1,7 @@
 #include "actor.h"
 #include "executor_thread.h"
 #include "mailbox.h"
-#include <library/cpp/actors/util/datetime.h>
+#include <library/cpp/actors/util/datetime.h> 
 
 namespace NActors {
     Y_POD_THREAD(TActivationContext*)
@@ -88,7 +88,7 @@ namespace NActors {
     }
 
     i64 TActivationContext::GetCurrentEventTicks() {
-        return GetCycleCountFast() - TlsActivationContext->EventStart;
+        return GetCycleCountFast() - TlsActivationContext->EventStart; 
     }
 
     double TActivationContext::GetCurrentEventTicksAsSeconds() {
diff --git a/library/cpp/actors/core/actor_ut.cpp b/library/cpp/actors/core/actor_ut.cpp
index e1b765ec72..0146b5a6de 100644
--- a/library/cpp/actors/core/actor_ut.cpp
+++ b/library/cpp/actors/core/actor_ut.cpp
@@ -35,7 +35,7 @@ struct TTestEndDecorator : TDecorator {
 };
 
 Y_UNIT_TEST_SUITE(ActorBenchmark) {
-    static constexpr bool DefaultNoRealtime = true;
+    static constexpr bool DefaultNoRealtime = true; 
     static constexpr ui32 DefaultSpinThreshold = 1000000;
     static constexpr ui32 TotalEventsAmount = 1000;
 
@@ -43,49 +43,49 @@ Y_UNIT_TEST_SUITE(ActorBenchmark) {
     public:
         TDummyActor() : TActor<TDummyActor>(&TDummyActor::StateFunc) {}
         STFUNC(StateFunc) {
-            (void)ev;
+            (void)ev; 
             (void)ctx;
         }
     };
 
-    enum ERole {
-        Leader,
-        Follower
-    };
-
+    enum ERole { 
+        Leader, 
+        Follower 
+    }; 
+ 
     class TSendReceiveActor : public TActorBootstrapped<TSendReceiveActor> {
     public:
         static constexpr auto ActorActivityType() {
             return ACTORLIB_COMMON;
         }
 
-        TSendReceiveActor(double* elapsedTime, TActorId receiver, bool allocation, ERole role, ui32 neighbours = 0)
-            : EventsCounter(TotalEventsAmount)
-            , ElapsedTime(elapsedTime)
-            , Receiver(receiver)
-            , AllocatesMemory(allocation)
-            , Role(role)
-            , MailboxNeighboursCount(neighbours)
+        TSendReceiveActor(double* elapsedTime, TActorId receiver, bool allocation, ERole role, ui32 neighbours = 0) 
+            : EventsCounter(TotalEventsAmount) 
+            , ElapsedTime(elapsedTime) 
+            , Receiver(receiver) 
+            , AllocatesMemory(allocation) 
+            , Role(role) 
+            , MailboxNeighboursCount(neighbours) 
         {}
 
         void Bootstrap(const TActorContext &ctx) {
             if (!Receiver) {
                 this->Receiver = SelfId();
-            } else {
-                EventsCounter /= 2; // We want to measure CPU requirement for one-way send
+            } else { 
+                EventsCounter /= 2; // We want to measure CPU requirement for one-way send 
             }
             Timer.Reset();
             Become(&TThis::StateFunc);
             for (ui32 i = 0; i < MailboxNeighboursCount; ++i) {
                 ctx.RegisterWithSameMailbox(new TDummyActor());
             }
-            if (Role == Leader) {
-                Send(Receiver, new TEvents::TEvPing());
-            }
+            if (Role == Leader) { 
+                Send(Receiver, new TEvents::TEvPing()); 
+            } 
         }
 
         STATEFN(StateFunc) {
-            if (EventsCounter == 0 && ElapsedTime != nullptr) {
+            if (EventsCounter == 0 && ElapsedTime != nullptr) { 
                 *ElapsedTime = Timer.Passed() / TotalEventsAmount;
                 PassAway();
             }
@@ -97,91 +97,91 @@ Y_UNIT_TEST_SUITE(ActorBenchmark) {
                 ev->DropRewrite();
                 TActivationContext::Send(ev.Release());
             }
-            EventsCounter--;
+            EventsCounter--; 
         }
 
     private:
         THPTimer Timer;
-        ui64 EventsCounter;
+        ui64 EventsCounter; 
         double* ElapsedTime;
         TActorId Receiver;
         bool AllocatesMemory;
-        ERole Role;
+        ERole Role; 
         ui32 MailboxNeighboursCount;
     };
 
-    void AddBasicPool(THolder<TActorSystemSetup>& setup, ui32 threads, bool activateEveryEvent) {
-        TBasicExecutorPoolConfig basic;
-        basic.PoolId = setup->GetExecutorsCount();
-        basic.PoolName = TStringBuilder() << "b" << basic.PoolId;
-        basic.Threads = threads;
-        basic.SpinThreshold = DefaultSpinThreshold;
-        basic.TimePerMailbox = TDuration::Hours(1);
-        if (activateEveryEvent) {
-            basic.EventsPerMailbox = 1;
-        } else {
-            basic.EventsPerMailbox = Max<ui32>();
-        }
-        setup->CpuManager.Basic.emplace_back(std::move(basic));
-    }
-
-    void AddUnitedPool(THolder<TActorSystemSetup>& setup, ui32 concurrency, bool activateEveryEvent) {
-        TUnitedExecutorPoolConfig united;
-        united.PoolId = setup->GetExecutorsCount();
-        united.PoolName = TStringBuilder() << "u" << united.PoolId;
-        united.Concurrency = concurrency;
-        united.TimePerMailbox = TDuration::Hours(1);
-        if (activateEveryEvent) {
-            united.EventsPerMailbox = 1;
-        } else {
-            united.EventsPerMailbox = Max<ui32>();
-        }
-        setup->CpuManager.United.emplace_back(std::move(united));
-    }
-
-    THolder<TActorSystemSetup> GetActorSystemSetup(ui32 unitedCpuCount, bool preemption) {
-        auto setup = MakeHolder<NActors::TActorSystemSetup>();
-        setup->NodeId = 1;
-        setup->CpuManager.UnitedWorkers.CpuCount = unitedCpuCount;
-        setup->CpuManager.UnitedWorkers.SpinThresholdUs = DefaultSpinThreshold;
-        setup->CpuManager.UnitedWorkers.NoRealtime = DefaultNoRealtime;
-        if (preemption) {
-            setup->CpuManager.UnitedWorkers.PoolLimitUs = 500;
-            setup->CpuManager.UnitedWorkers.EventLimitUs = 100;
-            setup->CpuManager.UnitedWorkers.LimitPrecisionUs = 100;
-        } else {
-            setup->CpuManager.UnitedWorkers.PoolLimitUs = 100'000'000'000;
-            setup->CpuManager.UnitedWorkers.EventLimitUs = 10'000'000'000;
-            setup->CpuManager.UnitedWorkers.LimitPrecisionUs = 10'000'000'000;
-        }
-        setup->Scheduler = new TBasicSchedulerThread(NActors::TSchedulerConfig(512, 0));
-        return setup;
-    }
-
-    enum class EPoolType {
-        Basic,
-        United
-    };
-
-    THolder<TActorSystemSetup> InitActorSystemSetup(EPoolType poolType, ui32 poolsCount, ui32 threads, bool activateEveryEvent, bool preemption) {
-        if (poolType == EPoolType::Basic) {
-            THolder<TActorSystemSetup> setup = GetActorSystemSetup(0, false);
-            for (ui32 i = 0; i < poolsCount; ++i) {
-                AddBasicPool(setup, threads, activateEveryEvent);
-            }
-            return setup;
-        } else if (poolType == EPoolType::United) {
-            THolder<TActorSystemSetup> setup = GetActorSystemSetup(poolsCount * threads, preemption);
-            for (ui32 i = 0; i < poolsCount; ++i) {
-                AddUnitedPool(setup, threads, activateEveryEvent);
-            }
-            return setup;
+    void AddBasicPool(THolder<TActorSystemSetup>& setup, ui32 threads, bool activateEveryEvent) { 
+        TBasicExecutorPoolConfig basic; 
+        basic.PoolId = setup->GetExecutorsCount(); 
+        basic.PoolName = TStringBuilder() << "b" << basic.PoolId; 
+        basic.Threads = threads; 
+        basic.SpinThreshold = DefaultSpinThreshold; 
+        basic.TimePerMailbox = TDuration::Hours(1); 
+        if (activateEveryEvent) { 
+            basic.EventsPerMailbox = 1; 
+        } else { 
+            basic.EventsPerMailbox = Max<ui32>(); 
         }
-        Y_FAIL();
-    }
-
-    double BenchSendReceive(bool allocation, NActors::TMailboxType::EType mType, EPoolType poolType) {
-        THolder<TActorSystemSetup> setup = InitActorSystemSetup(poolType, 1, 1, false, false);
+        setup->CpuManager.Basic.emplace_back(std::move(basic)); 
+    } 
+
+    void AddUnitedPool(THolder<TActorSystemSetup>& setup, ui32 concurrency, bool activateEveryEvent) { 
+        TUnitedExecutorPoolConfig united; 
+        united.PoolId = setup->GetExecutorsCount(); 
+        united.PoolName = TStringBuilder() << "u" << united.PoolId; 
+        united.Concurrency = concurrency; 
+        united.TimePerMailbox = TDuration::Hours(1); 
+        if (activateEveryEvent) { 
+            united.EventsPerMailbox = 1; 
+        } else { 
+            united.EventsPerMailbox = Max<ui32>(); 
+        } 
+        setup->CpuManager.United.emplace_back(std::move(united)); 
+    } 
+ 
+    THolder<TActorSystemSetup> GetActorSystemSetup(ui32 unitedCpuCount, bool preemption) { 
+        auto setup = MakeHolder<NActors::TActorSystemSetup>(); 
+        setup->NodeId = 1; 
+        setup->CpuManager.UnitedWorkers.CpuCount = unitedCpuCount; 
+        setup->CpuManager.UnitedWorkers.SpinThresholdUs = DefaultSpinThreshold; 
+        setup->CpuManager.UnitedWorkers.NoRealtime = DefaultNoRealtime; 
+        if (preemption) { 
+            setup->CpuManager.UnitedWorkers.PoolLimitUs = 500; 
+            setup->CpuManager.UnitedWorkers.EventLimitUs = 100; 
+            setup->CpuManager.UnitedWorkers.LimitPrecisionUs = 100; 
+        } else { 
+            setup->CpuManager.UnitedWorkers.PoolLimitUs = 100'000'000'000; 
+            setup->CpuManager.UnitedWorkers.EventLimitUs = 10'000'000'000; 
+            setup->CpuManager.UnitedWorkers.LimitPrecisionUs = 10'000'000'000; 
+        } 
+        setup->Scheduler = new TBasicSchedulerThread(NActors::TSchedulerConfig(512, 0)); 
+        return setup; 
+    } 
+ 
+    enum class EPoolType { 
+        Basic, 
+        United 
+    }; 
+ 
+    THolder<TActorSystemSetup> InitActorSystemSetup(EPoolType poolType, ui32 poolsCount, ui32 threads, bool activateEveryEvent, bool preemption) { 
+        if (poolType == EPoolType::Basic) { 
+            THolder<TActorSystemSetup> setup = GetActorSystemSetup(0, false); 
+            for (ui32 i = 0; i < poolsCount; ++i) { 
+                AddBasicPool(setup, threads, activateEveryEvent); 
+            } 
+            return setup; 
+        } else if (poolType == EPoolType::United) { 
+            THolder<TActorSystemSetup> setup = GetActorSystemSetup(poolsCount * threads, preemption); 
+            for (ui32 i = 0; i < poolsCount; ++i) { 
+                AddUnitedPool(setup, threads, activateEveryEvent); 
+            } 
+            return setup; 
+        } 
+        Y_FAIL(); 
+    } 
+ 
+    double BenchSendReceive(bool allocation, NActors::TMailboxType::EType mType, EPoolType poolType) { 
+        THolder<TActorSystemSetup> setup = InitActorSystemSetup(poolType, 1, 1, false, false); 
         TActorSystem actorSystem(setup);
         actorSystem.Start();
 
@@ -197,86 +197,86 @@ Y_UNIT_TEST_SUITE(ActorBenchmark) {
         pad.Park();
         actorSystem.Stop();
 
-        return 1e9 * elapsedTime;
+        return 1e9 * elapsedTime; 
     }
 
-    double BenchSendActivateReceive(ui32 poolsCount, ui32 threads, bool allocation, EPoolType poolType) {
-        THolder<TActorSystemSetup> setup = InitActorSystemSetup(poolType, poolsCount, threads, true, false);
-        TActorSystem actorSystem(setup);
+    double BenchSendActivateReceive(ui32 poolsCount, ui32 threads, bool allocation, EPoolType poolType) { 
+        THolder<TActorSystemSetup> setup = InitActorSystemSetup(poolType, poolsCount, threads, true, false); 
+        TActorSystem actorSystem(setup); 
         actorSystem.Start();
 
         TThreadParkPad pad;
         TAtomic actorsAlive = 0;
         double elapsedTime = 0;
-        ui32 followerPoolId = 0;
+        ui32 followerPoolId = 0; 
 
-        ui32 leaderPoolId = poolsCount == 1 ? 0 : 1;
-        TActorId followerId = actorSystem.Register(
-            new TSendReceiveActor(nullptr, {}, allocation, Follower), TMailboxType::HTSwap, followerPoolId);
+        ui32 leaderPoolId = poolsCount == 1 ? 0 : 1; 
+        TActorId followerId = actorSystem.Register( 
+            new TSendReceiveActor(nullptr, {}, allocation, Follower), TMailboxType::HTSwap, followerPoolId); 
         THolder<IActor> leader{
             new TTestEndDecorator(THolder(
                 new TSendReceiveActor(&elapsedTime, followerId, allocation, Leader)), &pad, &actorsAlive)};
-        actorSystem.Register(leader.Release(), TMailboxType::HTSwap, leaderPoolId);
-
+        actorSystem.Register(leader.Release(), TMailboxType::HTSwap, leaderPoolId); 
+ 
         pad.Park();
         actorSystem.Stop();
 
-        return 1e9 * elapsedTime;
+        return 1e9 * elapsedTime; 
     }
 
-    double BenchSendActivateReceiveWithMailboxNeighbours(ui32 MailboxNeighbourActors, EPoolType poolType) {
-        THolder<TActorSystemSetup> setup = InitActorSystemSetup(poolType, 1, 1, false, false);
-        TActorSystem actorSystem(setup);
+    double BenchSendActivateReceiveWithMailboxNeighbours(ui32 MailboxNeighbourActors, EPoolType poolType) { 
+        THolder<TActorSystemSetup> setup = InitActorSystemSetup(poolType, 1, 1, false, false); 
+        TActorSystem actorSystem(setup); 
         actorSystem.Start();
 
         TThreadParkPad pad;
         TAtomic actorsAlive = 0;
         double elapsedTime = 0;
 
-        TActorId followerId = actorSystem.Register(
-            new TSendReceiveActor(nullptr, {}, false, Follower, MailboxNeighbourActors), TMailboxType::HTSwap);
+        TActorId followerId = actorSystem.Register( 
+            new TSendReceiveActor(nullptr, {}, false, Follower, MailboxNeighbourActors), TMailboxType::HTSwap); 
         THolder<IActor> leader{
             new TTestEndDecorator(THolder(
                 new TSendReceiveActor(&elapsedTime, followerId, false, Leader, MailboxNeighbourActors)), &pad, &actorsAlive)};
-        actorSystem.Register(leader.Release(), TMailboxType::HTSwap);
+        actorSystem.Register(leader.Release(), TMailboxType::HTSwap); 
 
         pad.Park();
         actorSystem.Stop();
 
-        return 1e9 * elapsedTime;
+        return 1e9 * elapsedTime; 
     }
 
-    double BenchContentedThreads(ui32 threads, ui32 actorsPairsCount, EPoolType poolType) {
-        THolder<TActorSystemSetup> setup = InitActorSystemSetup(poolType, 1, threads, true, false);
-        TActorSystem actorSystem(setup);
+    double BenchContentedThreads(ui32 threads, ui32 actorsPairsCount, EPoolType poolType) { 
+        THolder<TActorSystemSetup> setup = InitActorSystemSetup(poolType, 1, threads, true, false); 
+        TActorSystem actorSystem(setup); 
         actorSystem.Start();
 
         TThreadParkPad pad;
         TAtomic actorsAlive = 0;
         THPTimer Timer;
 
-        TVector<double> dummy(actorsPairsCount);
+        TVector<double> dummy(actorsPairsCount); 
         Timer.Reset();
         for (ui32 i = 0; i < actorsPairsCount; ++i) {
-            ui32 followerPoolId = 0;
-            ui32 leaderPoolId = 0;
-            TActorId followerId = actorSystem.Register(
-                new TSendReceiveActor(nullptr, {}, true, Follower), TMailboxType::HTSwap, followerPoolId);
+            ui32 followerPoolId = 0; 
+            ui32 leaderPoolId = 0; 
+            TActorId followerId = actorSystem.Register( 
+                new TSendReceiveActor(nullptr, {}, true, Follower), TMailboxType::HTSwap, followerPoolId); 
             THolder<IActor> leader{
                 new TTestEndDecorator(THolder(
                     new TSendReceiveActor(&dummy[i], followerId, true, Leader)), &pad, &actorsAlive)};
-            actorSystem.Register(leader.Release(), TMailboxType::HTSwap, leaderPoolId);
+            actorSystem.Register(leader.Release(), TMailboxType::HTSwap, leaderPoolId); 
         }
 
         pad.Park();
         auto elapsedTime = Timer.Passed() / TotalEventsAmount;
         actorSystem.Stop();
 
-        return 1e9 * elapsedTime;
+        return 1e9 * elapsedTime; 
     }
 
     auto Mean(const TVector<double>& data) {
-        return Accumulate(data.begin(), data.end(), 0.0) / data.size();
+        return Accumulate(data.begin(), data.end(), 0.0) / data.size(); 
     }
 
     auto Deviation(const TVector<double>& data) {
@@ -285,19 +285,19 @@ Y_UNIT_TEST_SUITE(ActorBenchmark) {
         for (const auto& x : data) {
             deviation += (x - mean) * (x - mean);
         }
-        return std::sqrt(deviation / data.size());
+        return std::sqrt(deviation / data.size()); 
     }
 
     struct TStats {
         double Mean;
         double Deviation;
         TString ToString() {
-            return TStringBuilder() << Mean << " ± " << Deviation << " ns " << std::ceil(Deviation / Mean * 1000) / 10.0 << "%";
+            return TStringBuilder() << Mean << " ± " << Deviation << " ns " << std::ceil(Deviation / Mean * 1000) / 10.0 << "%"; 
         }
     };
 
     template <typename Func>
-    TStats CountStats(Func func, ui32 itersCount = 5) {
+    TStats CountStats(Func func, ui32 itersCount = 5) { 
         TVector<double> elapsedTimes;
         for (ui32 i = 0; i < itersCount; ++i) {
             auto elapsedTime = func();
@@ -314,171 +314,171 @@ Y_UNIT_TEST_SUITE(ActorBenchmark) {
         TMailboxType::TinyReadAsFilled
     };
 
-    Y_UNIT_TEST(SendReceive1Pool1ThreadAlloc) {
-        for (const auto& mType : MailboxTypes) {
-            auto stats = CountStats([mType] {
-                return BenchSendReceive(true, mType, EPoolType::Basic);
-            });
-            Cerr << stats.ToString() << " " << mType << Endl;
-        }
-    }
-
-    Y_UNIT_TEST(SendReceive1Pool1ThreadAllocUnited) {
+    Y_UNIT_TEST(SendReceive1Pool1ThreadAlloc) { 
         for (const auto& mType : MailboxTypes) {
             auto stats = CountStats([mType] {
-                return BenchSendReceive(true, mType, EPoolType::United);
+                return BenchSendReceive(true, mType, EPoolType::Basic); 
             });
             Cerr << stats.ToString() << " " << mType << Endl;
         }
     }
 
+    Y_UNIT_TEST(SendReceive1Pool1ThreadAllocUnited) { 
+        for (const auto& mType : MailboxTypes) { 
+            auto stats = CountStats([mType] { 
+                return BenchSendReceive(true, mType, EPoolType::United); 
+            }); 
+            Cerr << stats.ToString() << " " << mType << Endl; 
+        } 
+    } 
+ 
     Y_UNIT_TEST(SendReceive1Pool1ThreadNoAlloc) {
         for (const auto& mType : MailboxTypes) {
             auto stats = CountStats([mType] {
-                return BenchSendReceive(false, mType, EPoolType::Basic);
+                return BenchSendReceive(false, mType, EPoolType::Basic); 
             });
             Cerr << stats.ToString() << " " << mType << Endl;
         }
     }
-
-    Y_UNIT_TEST(SendReceive1Pool1ThreadNoAllocUnited) {
-        for (const auto& mType : MailboxTypes) {
-            auto stats = CountStats([mType] {
-                return BenchSendReceive(false, mType, EPoolType::United);
-            });
-            Cerr << stats.ToString() << " " << mType << Endl;
-        }
-    }
-
+ 
+    Y_UNIT_TEST(SendReceive1Pool1ThreadNoAllocUnited) { 
+        for (const auto& mType : MailboxTypes) { 
+            auto stats = CountStats([mType] { 
+                return BenchSendReceive(false, mType, EPoolType::United); 
+            }); 
+            Cerr << stats.ToString() << " " << mType << Endl; 
+        } 
+    } 
+ 
     Y_UNIT_TEST(SendActivateReceive1Pool1ThreadAlloc) {
         auto stats = CountStats([] {
-            return BenchSendActivateReceive(1, 1, true, EPoolType::Basic);
-        });
-        Cerr << stats.ToString() << Endl;
-    }
-
-    Y_UNIT_TEST(SendActivateReceive1Pool1ThreadAllocUnited) {
-        auto stats = CountStats([] {
-            return BenchSendActivateReceive(1, 1, true, EPoolType::United);
+            return BenchSendActivateReceive(1, 1, true, EPoolType::Basic); 
         });
         Cerr << stats.ToString() << Endl;
     }
 
+    Y_UNIT_TEST(SendActivateReceive1Pool1ThreadAllocUnited) { 
+        auto stats = CountStats([] { 
+            return BenchSendActivateReceive(1, 1, true, EPoolType::United); 
+        }); 
+        Cerr << stats.ToString() << Endl; 
+    } 
+ 
     Y_UNIT_TEST(SendActivateReceive1Pool1ThreadNoAlloc) {
         auto stats = CountStats([] {
-            return BenchSendActivateReceive(1, 1, false, EPoolType::Basic);
-        });
-        Cerr << stats.ToString() << Endl;
-    }
-
-    Y_UNIT_TEST(SendActivateReceive1Pool1ThreadNoAllocUnited) {
-        auto stats = CountStats([] {
-            return BenchSendActivateReceive(1, 1, false, EPoolType::United);
+            return BenchSendActivateReceive(1, 1, false, EPoolType::Basic); 
         });
         Cerr << stats.ToString() << Endl;
     }
 
+    Y_UNIT_TEST(SendActivateReceive1Pool1ThreadNoAllocUnited) { 
+        auto stats = CountStats([] { 
+            return BenchSendActivateReceive(1, 1, false, EPoolType::United); 
+        }); 
+        Cerr << stats.ToString() << Endl; 
+    } 
+ 
     Y_UNIT_TEST(SendActivateReceive1Pool2ThreadsAlloc) {
         auto stats = CountStats([] {
-            return BenchSendActivateReceive(1, 2, true, EPoolType::Basic);
-        });
-        Cerr << stats.ToString() << Endl;
-    }
-
-    Y_UNIT_TEST(SendActivateReceive1Pool2ThreadsAllocUnited) {
-        auto stats = CountStats([] {
-            return BenchSendActivateReceive(1, 2, true, EPoolType::United);
+            return BenchSendActivateReceive(1, 2, true, EPoolType::Basic); 
         });
         Cerr << stats.ToString() << Endl;
     }
 
+    Y_UNIT_TEST(SendActivateReceive1Pool2ThreadsAllocUnited) { 
+        auto stats = CountStats([] { 
+            return BenchSendActivateReceive(1, 2, true, EPoolType::United); 
+        }); 
+        Cerr << stats.ToString() << Endl; 
+    } 
+ 
     Y_UNIT_TEST(SendActivateReceive1Pool2ThreadsNoAlloc) {
         auto stats = CountStats([] {
-            return BenchSendActivateReceive(1, 2, false, EPoolType::Basic);
-        });
-        Cerr << stats.ToString() << Endl;
-    }
-
-    Y_UNIT_TEST(SendActivateReceive1Pool2ThreadsNoAllocUnited) {
-        auto stats = CountStats([] {
-            return BenchSendActivateReceive(1, 2, false, EPoolType::United);
-        });
-        Cerr << stats.ToString() << Endl;
-    }
-
-    Y_UNIT_TEST(SendActivateReceive2Pool1ThreadAlloc) {
-        auto stats = CountStats([] {
-            return BenchSendActivateReceive(2, 1, true, EPoolType::Basic);
-        });
-        Cerr << stats.ToString() << Endl;
-    }
-
-    Y_UNIT_TEST(SendActivateReceive2Pool1ThreadAllocUnited) {
-        auto stats = CountStats([] {
-            return BenchSendActivateReceive(2, 1, true, EPoolType::United);
+            return BenchSendActivateReceive(1, 2, false, EPoolType::Basic); 
         });
         Cerr << stats.ToString() << Endl;
     }
 
-    Y_UNIT_TEST(SendActivateReceive2Pool1ThreadNoAlloc) {
+    Y_UNIT_TEST(SendActivateReceive1Pool2ThreadsNoAllocUnited) { 
         auto stats = CountStats([] {
-            return BenchSendActivateReceive(2, 1, false, EPoolType::Basic);
+            return BenchSendActivateReceive(1, 2, false, EPoolType::United); 
         });
         Cerr << stats.ToString() << Endl;
     }
 
-    Y_UNIT_TEST(SendActivateReceive2Pool1ThreadNoAllocUnited) {
+    Y_UNIT_TEST(SendActivateReceive2Pool1ThreadAlloc) { 
         auto stats = CountStats([] {
-            return BenchSendActivateReceive(2, 1, false, EPoolType::United);
+            return BenchSendActivateReceive(2, 1, true, EPoolType::Basic); 
         });
         Cerr << stats.ToString() << Endl;
     }
 
-    void RunBenchContentedThreads(ui32 threads, EPoolType poolType) {
-        for (ui32 actorPairs = 1; actorPairs <= 2 * threads; actorPairs++) {
-            auto stats = CountStats([threads, actorPairs, poolType] {
-                return BenchContentedThreads(threads, actorPairs, poolType);
-            });
-            Cerr << stats.ToString() << " actorPairs: " << actorPairs << Endl;
-        }
-    }
-
-    Y_UNIT_TEST(SendActivateReceive1Pool1Threads)       { RunBenchContentedThreads(1, EPoolType::Basic);  }
-    Y_UNIT_TEST(SendActivateReceive1Pool1ThreadsUnited) { RunBenchContentedThreads(1, EPoolType::United); }
-    Y_UNIT_TEST(SendActivateReceive1Pool2Threads)       { RunBenchContentedThreads(2, EPoolType::Basic);  }
-    Y_UNIT_TEST(SendActivateReceive1Pool2ThreadsUnited) { RunBenchContentedThreads(2, EPoolType::United); }
-    Y_UNIT_TEST(SendActivateReceive1Pool3Threads)       { RunBenchContentedThreads(3, EPoolType::Basic);  }
-    Y_UNIT_TEST(SendActivateReceive1Pool3ThreadsUnited) { RunBenchContentedThreads(3, EPoolType::United); }
-    Y_UNIT_TEST(SendActivateReceive1Pool4Threads)       { RunBenchContentedThreads(4, EPoolType::Basic);  }
-    Y_UNIT_TEST(SendActivateReceive1Pool4ThreadsUnited) { RunBenchContentedThreads(4, EPoolType::United); }
-    Y_UNIT_TEST(SendActivateReceive1Pool5Threads)       { RunBenchContentedThreads(5, EPoolType::Basic);  }
-    Y_UNIT_TEST(SendActivateReceive1Pool5ThreadsUnited) { RunBenchContentedThreads(5, EPoolType::United); }
-    Y_UNIT_TEST(SendActivateReceive1Pool6Threads)       { RunBenchContentedThreads(6, EPoolType::Basic);  }
-    Y_UNIT_TEST(SendActivateReceive1Pool6ThreadsUnited) { RunBenchContentedThreads(6, EPoolType::United); }
-    Y_UNIT_TEST(SendActivateReceive1Pool7Threads)       { RunBenchContentedThreads(7, EPoolType::Basic);  }
-    Y_UNIT_TEST(SendActivateReceive1Pool7ThreadsUnited) { RunBenchContentedThreads(7, EPoolType::United); }
-    Y_UNIT_TEST(SendActivateReceive1Pool8Threads)       { RunBenchContentedThreads(8, EPoolType::Basic);  }
-    Y_UNIT_TEST(SendActivateReceive1Pool8ThreadsUnited) { RunBenchContentedThreads(8, EPoolType::United); }
-
+    Y_UNIT_TEST(SendActivateReceive2Pool1ThreadAllocUnited) { 
+        auto stats = CountStats([] { 
+            return BenchSendActivateReceive(2, 1, true, EPoolType::United); 
+        }); 
+        Cerr << stats.ToString() << Endl; 
+    }
+
+    Y_UNIT_TEST(SendActivateReceive2Pool1ThreadNoAlloc) { 
+        auto stats = CountStats([] { 
+            return BenchSendActivateReceive(2, 1, false, EPoolType::Basic); 
+        }); 
+        Cerr << stats.ToString() << Endl; 
+    }
+
+    Y_UNIT_TEST(SendActivateReceive2Pool1ThreadNoAllocUnited) { 
+        auto stats = CountStats([] { 
+            return BenchSendActivateReceive(2, 1, false, EPoolType::United); 
+        }); 
+        Cerr << stats.ToString() << Endl; 
+    }
+
+    void RunBenchContentedThreads(ui32 threads, EPoolType poolType) { 
+        for (ui32 actorPairs = 1; actorPairs <= 2 * threads; actorPairs++) { 
+            auto stats = CountStats([threads, actorPairs, poolType] { 
+                return BenchContentedThreads(threads, actorPairs, poolType); 
+            }); 
+            Cerr << stats.ToString() << " actorPairs: " << actorPairs << Endl; 
+        } 
+    }
+
+    Y_UNIT_TEST(SendActivateReceive1Pool1Threads)       { RunBenchContentedThreads(1, EPoolType::Basic);  } 
+    Y_UNIT_TEST(SendActivateReceive1Pool1ThreadsUnited) { RunBenchContentedThreads(1, EPoolType::United); } 
+    Y_UNIT_TEST(SendActivateReceive1Pool2Threads)       { RunBenchContentedThreads(2, EPoolType::Basic);  } 
+    Y_UNIT_TEST(SendActivateReceive1Pool2ThreadsUnited) { RunBenchContentedThreads(2, EPoolType::United); } 
+    Y_UNIT_TEST(SendActivateReceive1Pool3Threads)       { RunBenchContentedThreads(3, EPoolType::Basic);  } 
+    Y_UNIT_TEST(SendActivateReceive1Pool3ThreadsUnited) { RunBenchContentedThreads(3, EPoolType::United); } 
+    Y_UNIT_TEST(SendActivateReceive1Pool4Threads)       { RunBenchContentedThreads(4, EPoolType::Basic);  } 
+    Y_UNIT_TEST(SendActivateReceive1Pool4ThreadsUnited) { RunBenchContentedThreads(4, EPoolType::United); } 
+    Y_UNIT_TEST(SendActivateReceive1Pool5Threads)       { RunBenchContentedThreads(5, EPoolType::Basic);  } 
+    Y_UNIT_TEST(SendActivateReceive1Pool5ThreadsUnited) { RunBenchContentedThreads(5, EPoolType::United); } 
+    Y_UNIT_TEST(SendActivateReceive1Pool6Threads)       { RunBenchContentedThreads(6, EPoolType::Basic);  } 
+    Y_UNIT_TEST(SendActivateReceive1Pool6ThreadsUnited) { RunBenchContentedThreads(6, EPoolType::United); } 
+    Y_UNIT_TEST(SendActivateReceive1Pool7Threads)       { RunBenchContentedThreads(7, EPoolType::Basic);  } 
+    Y_UNIT_TEST(SendActivateReceive1Pool7ThreadsUnited) { RunBenchContentedThreads(7, EPoolType::United); } 
+    Y_UNIT_TEST(SendActivateReceive1Pool8Threads)       { RunBenchContentedThreads(8, EPoolType::Basic);  } 
+    Y_UNIT_TEST(SendActivateReceive1Pool8ThreadsUnited) { RunBenchContentedThreads(8, EPoolType::United); } 
+ 
     Y_UNIT_TEST(SendActivateReceiveWithMailboxNeighbours) {
         TVector<ui32> NeighbourActors = {0, 1, 2, 3, 4, 5, 6, 7, 8, 16, 32, 64, 128, 256};
         for (const auto& neighbour : NeighbourActors) {
             auto stats = CountStats([neighbour] {
-                return BenchSendActivateReceiveWithMailboxNeighbours(neighbour, EPoolType::Basic);
-            });
-            Cerr << stats.ToString() << " neighbourActors: " << neighbour << Endl;
-        }
-    }
-
-    Y_UNIT_TEST(SendActivateReceiveWithMailboxNeighboursUnited) {
-        TVector<ui32> NeighbourActors = {0, 1, 2, 3, 4, 5, 6, 7, 8, 16, 32, 64, 128, 256};
-        for (const auto& neighbour : NeighbourActors) {
-            auto stats = CountStats([neighbour] {
-                return BenchSendActivateReceiveWithMailboxNeighbours(neighbour, EPoolType::United);
+                return BenchSendActivateReceiveWithMailboxNeighbours(neighbour, EPoolType::Basic); 
             });
-            Cerr << stats.ToString() << " neighbourActors: " << neighbour << Endl;
+            Cerr << stats.ToString() << " neighbourActors: " << neighbour << Endl; 
         }
     }
+ 
+    Y_UNIT_TEST(SendActivateReceiveWithMailboxNeighboursUnited) { 
+        TVector<ui32> NeighbourActors = {0, 1, 2, 3, 4, 5, 6, 7, 8, 16, 32, 64, 128, 256}; 
+        for (const auto& neighbour : NeighbourActors) { 
+            auto stats = CountStats([neighbour] { 
+                return BenchSendActivateReceiveWithMailboxNeighbours(neighbour, EPoolType::United); 
+            }); 
+            Cerr << stats.ToString() << " neighbourActors: " << neighbour << Endl; 
+        } 
+    } 
 }
 
 Y_UNIT_TEST_SUITE(TestDecorator) {
diff --git a/library/cpp/actors/core/actorid.h b/library/cpp/actors/core/actorid.h
index d972b1a0ff..b8c41f5dd8 100644
--- a/library/cpp/actors/core/actorid.h
+++ b/library/cpp/actors/core/actorid.h
@@ -180,7 +180,7 @@ namespace NActors {
     };
 
     static_assert(sizeof(TActorId) == 16, "expect sizeof(TActorId) == 16");
-    static_assert(MaxPools < TActorId::MaxPoolID); // current implementation of united pool has limit MaxPools on pool id
+    static_assert(MaxPools < TActorId::MaxPoolID); // current implementation of united pool has limit MaxPools on pool id 
 }
 
 template <>
diff --git a/library/cpp/actors/core/actorsystem.cpp b/library/cpp/actors/core/actorsystem.cpp
index c58698a206..b2bed85f92 100644
--- a/library/cpp/actors/core/actorsystem.cpp
+++ b/library/cpp/actors/core/actorsystem.cpp
@@ -1,7 +1,7 @@
 #include "defs.h"
 #include "actorsystem.h"
 #include "callstack.h"
-#include "cpu_manager.h"
+#include "cpu_manager.h" 
 #include "mailbox.h"
 #include "events.h"
 #include "interconnect.h"
@@ -9,10 +9,10 @@
 #include "scheduler_queue.h"
 #include "scheduler_actor.h"
 #include "log.h"
-#include "probes.h"
+#include "probes.h" 
 #include "ask.h"
 #include <library/cpp/actors/util/affinity.h>
-#include <library/cpp/actors/util/datetime.h>
+#include <library/cpp/actors/util/datetime.h> 
 #include <util/generic/hash.h>
 #include <util/system/rwlock.h>
 #include <util/random/random.h>
@@ -38,8 +38,8 @@ namespace NActors {
     TActorSystem::TActorSystem(THolder<TActorSystemSetup>& setup, void* appData,
                                TIntrusivePtr<NLog::TSettings> loggerSettings)
         : NodeId(setup->NodeId)
-        , CpuManager(new TCpuManager(setup))
-        , ExecutorPoolCount(CpuManager->GetExecutorsCount())
+        , CpuManager(new TCpuManager(setup)) 
+        , ExecutorPoolCount(CpuManager->GetExecutorsCount()) 
         , Scheduler(setup->Scheduler)
         , InterconnectCount((ui32)setup->Interconnect.ProxyActors.size())
         , CurrentTimestamp(0)
@@ -105,10 +105,10 @@ namespace NActors {
         Y_VERIFY_DEBUG(recipient == ev->GetRecipientRewrite());
         const ui32 recpPool = recipient.PoolID();
         if (recipient && recpPool < ExecutorPoolCount) {
-            if (CpuManager->GetExecutorPool(recpPool)->Send(ev)) {
+            if (CpuManager->GetExecutorPool(recpPool)->Send(ev)) { 
                 return true;
-            }
-        }
+            } 
+        } 
 
         Send(ev->ForwardOnNondelivery(TEvents::TEvUndelivered::ReasonActorUnknown));
         return false;
@@ -142,7 +142,7 @@ namespace NActors {
                                     const TActorId& parentId) {
         Y_VERIFY(executorPool < ExecutorPoolCount, "executorPool# %" PRIu32 ", ExecutorPoolCount# %" PRIu32,
                  (ui32)executorPool, (ui32)ExecutorPoolCount);
-        return CpuManager->GetExecutorPool(executorPool)->Register(actor, mailboxType, revolvingCounter, parentId);
+        return CpuManager->GetExecutorPool(executorPool)->Register(actor, mailboxType, revolvingCounter, parentId); 
     }
 
     NThreading::TFuture<THolder<IEventBase>> TActorSystem::AskGeneric(TMaybe<ui32> expectedEventType,
@@ -199,20 +199,20 @@ namespace NActors {
         return ServiceMap->RegisterLocalService(serviceId, actorId);
     }
 
-    void TActorSystem::GetPoolStats(ui32 poolId, TExecutorPoolStats& poolStats, TVector<TExecutorThreadStats>& statsCopy) const {
-        CpuManager->GetPoolStats(poolId, poolStats, statsCopy);
-    }
-
+    void TActorSystem::GetPoolStats(ui32 poolId, TExecutorPoolStats& poolStats, TVector<TExecutorThreadStats>& statsCopy) const { 
+        CpuManager->GetPoolStats(poolId, poolStats, statsCopy); 
+    } 
+ 
     void TActorSystem::Start() {
         Y_VERIFY(StartExecuted == false);
         StartExecuted = true;
 
-        ScheduleQueue.Reset(new NSchedulerQueue::TQueueType());
+        ScheduleQueue.Reset(new NSchedulerQueue::TQueueType()); 
         TVector<NSchedulerQueue::TReader*> scheduleReaders;
         scheduleReaders.push_back(&ScheduleQueue->Reader);
-        CpuManager->PrepareStart(scheduleReaders, this);
+        CpuManager->PrepareStart(scheduleReaders, this); 
         Scheduler->Prepare(this, &CurrentTimestamp, &CurrentMonotonic);
-        Scheduler->PrepareSchedules(&scheduleReaders.front(), (ui32)scheduleReaders.size());
+        Scheduler->PrepareSchedules(&scheduleReaders.front(), (ui32)scheduleReaders.size()); 
 
         // setup interconnect proxies
         {
@@ -243,7 +243,7 @@ namespace NActors {
         SystemSetup.Destroy();
 
         Scheduler->PrepareStart();
-        CpuManager->Start();
+        CpuManager->Start(); 
         Send(MakeSchedulerActorId(), new TEvSchedulerInitialize(scheduleReaders, &CurrentTimestamp, &CurrentMonotonic));
         Scheduler->Start();
     }
@@ -259,9 +259,9 @@ namespace NActors {
         }
 
         Scheduler->PrepareStop();
-        CpuManager->PrepareStop();
+        CpuManager->PrepareStop(); 
         Scheduler->Stop();
-        CpuManager->Shutdown();
+        CpuManager->Shutdown(); 
     }
 
     void TActorSystem::Cleanup() {
@@ -269,7 +269,7 @@ namespace NActors {
         if (CleanupExecuted || !StartExecuted)
             return;
         CleanupExecuted = true;
-        CpuManager->Cleanup();
+        CpuManager->Cleanup(); 
         Scheduler.Destroy();
     }
 
diff --git a/library/cpp/actors/core/actorsystem.h b/library/cpp/actors/core/actorsystem.h
index 40499d7586..d6d88ba0c2 100644
--- a/library/cpp/actors/core/actorsystem.h
+++ b/library/cpp/actors/core/actorsystem.h
@@ -1,27 +1,27 @@
 #pragma once
 
 #include "defs.h"
-
-#include "actor.h"
-#include "balancer.h"
-#include "config.h"
+ 
+#include "actor.h" 
+#include "balancer.h" 
+#include "config.h" 
 #include "event.h"
 #include "log_settings.h"
 #include "scheduler_cookie.h"
 #include "mon_stats.h"
-
+ 
 #include <library/cpp/threading/future/future.h>
 #include <library/cpp/actors/util/ticket_lock.h>
-
+ 
 #include <util/generic/vector.h>
 #include <util/datetime/base.h>
 #include <util/system/mutex.h>
 
 namespace NActors {
     class TActorSystem;
-    class TCpuManager;
+    class TCpuManager; 
     class IExecutorPool;
-    struct TWorkerContext;
+    struct TWorkerContext; 
 
     inline TActorId MakeInterconnectProxyId(ui32 destNodeId) {
         char data[12];
@@ -62,9 +62,9 @@ namespace NActors {
         virtual ~IExecutorPool() {
         }
 
-        // for workers
-        virtual ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) = 0;
-        virtual void ReclaimMailbox(TMailboxType::EType mailboxType, ui32 hint, TWorkerId workerId, ui64 revolvingCounter) = 0;
+        // for workers 
+        virtual ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) = 0; 
+        virtual void ReclaimMailbox(TMailboxType::EType mailboxType, ui32 hint, TWorkerId workerId, ui64 revolvingCounter) = 0; 
 
         /**
          * Schedule one-shot event that will be send at given time point in the future.
@@ -72,9 +72,9 @@ namespace NActors {
          * @param deadline   the wallclock time point in future when event must be send
          * @param ev         the event to send
          * @param cookie     cookie that will be piggybacked with event
-         * @param workerId   index of thread which will perform event dispatching
+         * @param workerId   index of thread which will perform event dispatching 
          */
-        virtual void Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) = 0;
+        virtual void Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) = 0; 
 
         /**
          * Schedule one-shot event that will be send at given time point in the future.
@@ -82,9 +82,9 @@ namespace NActors {
          * @param deadline   the monotonic time point in future when event must be send
          * @param ev         the event to send
          * @param cookie     cookie that will be piggybacked with event
-         * @param workerId   index of thread which will perform event dispatching
+         * @param workerId   index of thread which will perform event dispatching 
          */
-        virtual void Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) = 0;
+        virtual void Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) = 0; 
 
         /**
          * Schedule one-shot event that will be send after given delay.
@@ -92,9 +92,9 @@ namespace NActors {
          * @param delta      the time from now to delay event sending
          * @param ev         the event to send
          * @param cookie     cookie that will be piggybacked with event
-         * @param workerId   index of thread which will perform event dispatching
+         * @param workerId   index of thread which will perform event dispatching 
          */
-        virtual void Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) = 0;
+        virtual void Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) = 0; 
 
         // for actorsystem
         virtual bool Send(TAutoPtr<IEventHandle>& ev) = 0;
@@ -104,7 +104,7 @@ namespace NActors {
         virtual TActorId Register(IActor* actor, TMailboxHeader* mailbox, ui32 hint, const TActorId& parentId) = 0;
 
         // lifecycle stuff
-        virtual void Prepare(TActorSystem* actorSystem, NSchedulerQueue::TReader** scheduleReaders, ui32* scheduleSz) = 0;
+        virtual void Prepare(TActorSystem* actorSystem, NSchedulerQueue::TReader** scheduleReaders, ui32* scheduleSz) = 0; 
         virtual void Start() = 0;
         virtual void PrepareStop() = 0;
         virtual void Shutdown() = 0;
@@ -115,7 +115,7 @@ namespace NActors {
             Y_UNUSED(poolStats);
             Y_UNUSED(statsCopy);
         }
-
+ 
         virtual TString GetName() const {
             return TString();
         }
@@ -127,7 +127,7 @@ namespace NActors {
         // generic
         virtual TAffinity* Affinity() const = 0;
 
-        virtual void SetRealTimeMode() const {}
+        virtual void SetRealTimeMode() const {} 
     };
 
     // could be proxy to in-pool schedulers (for NUMA-aware executors)
@@ -137,7 +137,7 @@ namespace NActors {
         }
 
         virtual void Prepare(TActorSystem* actorSystem, volatile ui64* currentTimestamp, volatile ui64* currentMonotonic) = 0;
-        virtual void PrepareSchedules(NSchedulerQueue::TReader** readers, ui32 scheduleReadersCount) = 0;
+        virtual void PrepareSchedules(NSchedulerQueue::TReader** readers, ui32 scheduleReadersCount) = 0; 
         virtual void PrepareStart() { /* empty */ }
         virtual void Start() = 0;
         virtual void PrepareStop() = 0;
@@ -180,14 +180,14 @@ namespace NActors {
     struct TActorSystemSetup {
         ui32 NodeId = 0;
 
-        // Either Executors or CpuManager must be initialized
+        // Either Executors or CpuManager must be initialized 
         ui32 ExecutorsCount = 0;
         TArrayHolder<TAutoPtr<IExecutorPool>> Executors;
-
-        TAutoPtr<IBalancer> Balancer; // main implementation will be implicitly created if not set
-
-        TCpuManagerConfig CpuManager;
-
+ 
+        TAutoPtr<IBalancer> Balancer; // main implementation will be implicitly created if not set 
+ 
+        TCpuManagerConfig CpuManager; 
+ 
         TAutoPtr<ISchedulerThread> Scheduler;
         ui32 MaxActivityType = 5; // for default entries
 
@@ -195,18 +195,18 @@ namespace NActors {
 
         using TLocalServices = TVector<std::pair<TActorId, TActorSetupCmd>>;
         TLocalServices LocalServices;
-
-        ui32 GetExecutorsCount() const {
-            return Executors ? ExecutorsCount : CpuManager.GetExecutorsCount();
-        }
-
-        TString GetPoolName(ui32 poolId) const {
-            return Executors ? Executors[poolId]->GetName() : CpuManager.GetPoolName(poolId);
-        }
-
-        ui32 GetThreads(ui32 poolId) const {
-            return Executors ? Executors[poolId]->GetThreads() : CpuManager.GetThreads(poolId);
-        }
+ 
+        ui32 GetExecutorsCount() const { 
+            return Executors ? ExecutorsCount : CpuManager.GetExecutorsCount(); 
+        } 
+ 
+        TString GetPoolName(ui32 poolId) const { 
+            return Executors ? Executors[poolId]->GetName() : CpuManager.GetPoolName(poolId); 
+        } 
+ 
+        ui32 GetThreads(ui32 poolId) const { 
+            return Executors ? Executors[poolId]->GetThreads() : CpuManager.GetThreads(poolId); 
+        } 
     };
 
     class TActorSystem : TNonCopyable {
@@ -214,9 +214,9 @@ namespace NActors {
 
     public:
         const ui32 NodeId;
-
+ 
     private:
-        THolder<TCpuManager> CpuManager;
+        THolder<TCpuManager> CpuManager; 
         const ui32 ExecutorPoolCount;
 
         TAutoPtr<ISchedulerThread> Scheduler;
@@ -353,7 +353,7 @@ namespace NActors {
             return LoggerSettings0.Get();
         }
 
-        void GetPoolStats(ui32 poolId, TExecutorPoolStats& poolStats, TVector<TExecutorThreadStats>& statsCopy) const;
+        void GetPoolStats(ui32 poolId, TExecutorPoolStats& poolStats, TVector<TExecutorThreadStats>& statsCopy) const; 
 
         void DeferPreStop(std::function<void()> fn) {
             DeferredPreStop.push_back(std::move(fn));
diff --git a/library/cpp/actors/core/balancer.cpp b/library/cpp/actors/core/balancer.cpp
index cc5417b0b5..6ee975bec1 100644
--- a/library/cpp/actors/core/balancer.cpp
+++ b/library/cpp/actors/core/balancer.cpp
@@ -1,293 +1,293 @@
-#include "balancer.h"
-
-#include "probes.h"
-
-#include <library/cpp/actors/util/intrinsics.h>
-#include <library/cpp/actors/util/datetime.h>
-
-#include <util/system/spinlock.h>
-
-#include <algorithm>
-
-namespace NActors {
-    LWTRACE_USING(ACTORLIB_PROVIDER);
-
-    // Describes balancing-related state of pool, the most notable is `Importance` to add new cpu
-    struct TLevel {
-        // Balancer will try to give more cpu to overloaded pools
-        enum ELoadClass {
-            Underloaded = 0,
-            Moderate = 1,
-            Overloaded = 2,
-        };
-
-        double ScaleFactor;
-        ELoadClass LoadClass;
-        ui64 Importance; // pool with lower importance is allowed to pass cpu to pool with higher, but the opposite is forbidden
-
-        TLevel() {}
-
-        TLevel(const TBalancingConfig& cfg, TPoolId poolId, ui64 currentCpus, double cpuIdle) {
-            ScaleFactor = double(currentCpus) / cfg.Cpus;
-            if (cpuIdle > 1.3) { // TODO: add a better underload criterion, based on estimated latency w/o 1 cpu
-                LoadClass = Underloaded;
-            } else if (cpuIdle < 0.2) { // TODO: add a better overload criterion, based on latency
-                LoadClass = Overloaded;
-            } else {
-                LoadClass = Moderate;
-            }
-            Importance = MakeImportance(LoadClass, cfg.Priority, ScaleFactor, cpuIdle, poolId);
-        }
-
-    private:
-        // Importance is simple ui64 value (from highest to lowest):
-        //   2 Bits: LoadClass
-        //   8 Bits: Priority
-        //  10 Bits: -ScaleFactor (for max-min fairness with weights equal to TBalancingConfig::Cpus)
-        //  10 Bits: -CpuIdle
-        //   6 Bits: PoolId
-        static ui64 MakeImportance(ELoadClass load, ui8 priority, double scaleFactor, double cpuIdle, TPoolId poolId) {
-            ui64 idle = std::clamp<i64>(1024 - cpuIdle * 512, 0, 1023);
-            ui64 scale = std::clamp<i64>(1024 - scaleFactor * 32, 0, 1023);
-
-            Y_VERIFY(ui64(load)     < (1ull << 2ull));
-            Y_VERIFY(ui64(priority) < (1ull << 8ull));
-            Y_VERIFY(ui64(scale)    < (1ull << 10ull));
-            Y_VERIFY(ui64(idle)     < (1ull << 10ull));
-            Y_VERIFY(ui64(poolId)   < (1ull << 6ull));
-
-            static_assert(ui64(MaxPools) <= (1ull << 6ull));
-
-            ui64 importance =
-                (ui64(load)     << ui64(6 + 10 + 10 + 8)) |
-                (ui64(priority) << ui64(6 + 10 + 10)) |
-                (ui64(scale)    << ui64(6 + 10)) |
-                (ui64(idle)     << ui64(6)) |
-                ui64(poolId);
-            return importance;
-        }
-    };
-
-    // Main balancer implemenation
-    class TBalancer: public IBalancer {
-    private:
-        struct TCpu;
-        struct TPool;
-
-        bool Disabled = true;
-        TSpinLock Lock;
-        ui64 NextBalanceTs;
-        TVector<TCpu> Cpus; // Indexed by CpuId, can have gaps
-        TVector<TPool> Pools; // Indexed by PoolId, can have gaps
-        TBalancerConfig Config;
-
-    public:
-        // Setup
-        TBalancer(const TBalancerConfig& config, const TVector<TUnitedExecutorPoolConfig>& unitedPools, ui64 ts);
-        bool AddCpu(const TCpuAllocation& cpuAlloc, TCpuState* cpu) override;
-        ~TBalancer();
-
-        // Balancing
-        bool TryLock(ui64 ts) override;
-        void SetPoolStats(TPoolId pool, const TBalancerStats& stats) override;
-        void Balance() override;
-        void Unlock() override;
-
-    private:
-        void MoveCpu(TPool& from, TPool& to);
-    };
-
-    struct TBalancer::TPool {
-        TBalancingConfig Config;
-        TPoolId PoolId;
-        TString PoolName;
-
-        // Input data for balancing
-        TBalancerStats Prev;
-        TBalancerStats Next;
-
-        // Derived stats
-        double CpuLoad;
-        double CpuIdle;
-
-        // Classification
-        // NOTE: We want to avoid passing cpu back and forth, so we must consider not only current level,
-        // NOTE: but expected levels after movements also
-        TLevel CurLevel; // Level with current amount of cpu
-        TLevel AddLevel; // Level after one cpu acception
-        TLevel SubLevel; // Level after one cpu donation
-
-        // Balancing state
-        ui64 CurrentCpus = 0; // Total number of cpus assigned for this pool (zero means pools is not balanced)
-        ui64 PrevCpus = 0; // Cpus in last period
-
-        explicit TPool(const TBalancingConfig& cfg = {})
-            : Config(cfg)
-        {}
-
-        void Configure(const TBalancingConfig& cfg, const TString& poolName) {
-            Config = cfg;
-            // Enforce constraints
-            Config.MinCpus = std::clamp<ui32>(Config.MinCpus, 1, Config.Cpus);
-            Config.MaxCpus = Max<ui32>(Config.MaxCpus, Config.Cpus);
-            PoolName = poolName;
-        }
-    };
-
-    struct TBalancer::TCpu {
-        TCpuState* State = nullptr; // Cpu state, nullptr means cpu is not used (gap)
-        TCpuAllocation Alloc;
-        TPoolId Current;
-        TPoolId Assigned;
-    };
-
-    TBalancer::TBalancer(const TBalancerConfig& config, const TVector<TUnitedExecutorPoolConfig>& unitedPools, ui64 ts)
-        : NextBalanceTs(ts)
-        , Config(config)
-    {
-        for (TPoolId pool = 0; pool < MaxPools; pool++) {
-            Pools.emplace_back();
-            Pools.back().PoolId = pool;
-        }
-        for (const TUnitedExecutorPoolConfig& united : unitedPools) {
-            Pools[united.PoolId].Configure(united.Balancing, united.PoolName);
-        }
-    }
-
-    TBalancer::~TBalancer() {
-    }
-
-    bool TBalancer::AddCpu(const TCpuAllocation& cpuAlloc, TCpuState* state) {
-        // Setup
-        TCpuId cpuId = cpuAlloc.CpuId;
-        if (Cpus.size() <= cpuId) {
-            Cpus.resize(cpuId + 1);
-        }
-        TCpu& cpu = Cpus[cpuId];
-        cpu.State = state;
-        cpu.Alloc = cpuAlloc;
-
-        // Fill every pool with cpus up to TBalancingConfig::Cpus
-        TPoolId pool = 0;
-        for (TPool& p : Pools) {
-            if (p.CurrentCpus < p.Config.Cpus) {
-                p.CurrentCpus++;
-                break;
-            }
-            pool++;
-        }
-        if (pool != MaxPools) { // cpu under balancer control
-            state->SwitchPool(pool);
-            state->AssignPool(pool);
-            Disabled = false;
-            return true;
-        }
-        return false; // non-balanced cpu
-    }
-
-    bool TBalancer::TryLock(ui64 ts) {
-        if (!Disabled && NextBalanceTs < ts && Lock.TryAcquire()) {
-            NextBalanceTs = ts + Us2Ts(Config.PeriodUs);
-            return true;
-        }
-        return false;
-    }
-
-    void TBalancer::SetPoolStats(TPoolId pool, const TBalancerStats& stats) {
-        Y_VERIFY(pool < MaxPools);
-        TPool& p = Pools[pool];
-        p.Prev = p.Next;
-        p.Next = stats;
-    }
-
-    void TBalancer::Balance() {
-        // Update every cpu state
-        for (TCpu& cpu : Cpus) {
-            if (cpu.State) {
-                cpu.State->Load(cpu.Assigned, cpu.Current);
-                if (cpu.Current < MaxPools && cpu.Current != cpu.Assigned) {
-                    return; // previous movement has not been applied yet, wait
-                }
-            }
-        }
-
-        // Process stats, classify and compute pool importance
-        TStackVec<TPool*, MaxPools> order;
-        for (TPool& pool : Pools) {
-            if (pool.Config.Cpus == 0) {
-                continue; // skip gaps (non-existent or non-united pools)
-            }
-            if (pool.Prev.Ts == 0 || pool.Prev.Ts >= pool.Next.Ts) {
-                return; // invalid stats
-            }
-
-            // Compute derived stats
-            pool.CpuLoad = (pool.Next.CpuUs - pool.Prev.CpuUs) / Ts2Us(pool.Next.Ts - pool.Prev.Ts);
-            if (pool.Prev.IdleUs == ui64(-1) || pool.Next.IdleUs == ui64(-1)) {
-                pool.CpuIdle = pool.CurrentCpus - pool.CpuLoad; // for tests
-            } else {
-                pool.CpuIdle = (pool.Next.IdleUs - pool.Prev.IdleUs) / Ts2Us(pool.Next.Ts - pool.Prev.Ts);
-            }
-
-            // Compute levels
-            pool.CurLevel = TLevel(pool.Config, pool.PoolId, pool.CurrentCpus, pool.CpuIdle);
-            pool.AddLevel = TLevel(pool.Config, pool.PoolId, pool.CurrentCpus + 1, pool.CpuIdle); // we expect taken cpu to became utilized
-            pool.SubLevel = TLevel(pool.Config, pool.PoolId, pool.CurrentCpus - 1, pool.CpuIdle - 1);
-
-            // Prepare for balancing
-            pool.PrevCpus = pool.CurrentCpus;
-            order.push_back(&pool);
-        }
-
-        // Sort pools by importance
-        std::sort(order.begin(), order.end(), [] (TPool* l, TPool* r) {return l->CurLevel.Importance < r->CurLevel.Importance; });
-        for (TPool* pool : order) {
-            LWPROBE(PoolStats, pool->PoolId, pool->PoolName, pool->CurrentCpus, pool->CurLevel.LoadClass, pool->Config.Priority, pool->CurLevel.ScaleFactor, pool->CpuIdle, pool->CpuLoad, pool->CurLevel.Importance, pool->AddLevel.Importance, pool->SubLevel.Importance);
-        }
-
-        // Move cpus from lower importance to higher importance pools
-        for (auto toIter = order.rbegin(); toIter != order.rend(); ++toIter) {
-            TPool& to = **toIter;
-            if (to.CurLevel.LoadClass == TLevel::Overloaded && // if pool is overloaded
-                to.CurrentCpus < to.Config.MaxCpus) // and constraints would not be violated
-            {
-                for (auto fromIter = order.begin(); (*fromIter)->CurLevel.Importance < to.CurLevel.Importance; ++fromIter) {
-                    TPool& from = **fromIter;
-                    if (from.CurrentCpus == from.PrevCpus && // if not balanced yet
-                        from.CurrentCpus > from.Config.MinCpus && // and constraints would not be violated
-                        from.SubLevel.Importance < to.AddLevel.Importance) // and which of two pools is more important would not change after cpu movement
-                    {
-                        MoveCpu(from, to);
-                        from.CurrentCpus--;
-                        to.CurrentCpus++;
-                        break;
-                    }
-                }
-            }
-        }
-    }
-
-    void TBalancer::MoveCpu(TBalancer::TPool& from, TBalancer::TPool& to) {
-        for (auto ci = Cpus.rbegin(), ce = Cpus.rend(); ci != ce; ci++) {
-            TCpu& cpu = *ci;
-            if (!cpu.State) {
-                continue;
-            }
-            if (cpu.Assigned == from.PoolId) {
-                cpu.State->AssignPool(to.PoolId);
-                cpu.Assigned = to.PoolId;
-                LWPROBE(MoveCpu, from.PoolId, to.PoolId, from.PoolName, to.PoolName, cpu.Alloc.CpuId);
-                return;
-            }
-        }
-        Y_FAIL();
-    }
-
-    void TBalancer::Unlock() {
-        Lock.Release();
-    }
-
-    IBalancer* MakeBalancer(const TBalancerConfig& config, const TVector<TUnitedExecutorPoolConfig>& unitedPools, ui64 ts) {
-        return new TBalancer(config, unitedPools, ts);
-    }
-}
+#include "balancer.h" 
+ 
+#include "probes.h" 
+ 
+#include <library/cpp/actors/util/intrinsics.h> 
+#include <library/cpp/actors/util/datetime.h> 
+ 
+#include <util/system/spinlock.h> 
+ 
+#include <algorithm> 
+ 
+namespace NActors { 
+    LWTRACE_USING(ACTORLIB_PROVIDER); 
+ 
+    // Describes balancing-related state of pool, the most notable is `Importance` to add new cpu 
+    struct TLevel { 
+        // Balancer will try to give more cpu to overloaded pools 
+        enum ELoadClass { 
+            Underloaded = 0, 
+            Moderate = 1, 
+            Overloaded = 2, 
+        }; 
+ 
+        double ScaleFactor; 
+        ELoadClass LoadClass; 
+        ui64 Importance; // pool with lower importance is allowed to pass cpu to pool with higher, but the opposite is forbidden 
+ 
+        TLevel() {} 
+ 
+        TLevel(const TBalancingConfig& cfg, TPoolId poolId, ui64 currentCpus, double cpuIdle) { 
+            ScaleFactor = double(currentCpus) / cfg.Cpus; 
+            if (cpuIdle > 1.3) { // TODO: add a better underload criterion, based on estimated latency w/o 1 cpu 
+                LoadClass = Underloaded; 
+            } else if (cpuIdle < 0.2) { // TODO: add a better overload criterion, based on latency 
+                LoadClass = Overloaded; 
+            } else { 
+                LoadClass = Moderate; 
+            } 
+            Importance = MakeImportance(LoadClass, cfg.Priority, ScaleFactor, cpuIdle, poolId); 
+        } 
+ 
+    private: 
+        // Importance is simple ui64 value (from highest to lowest): 
+        //   2 Bits: LoadClass 
+        //   8 Bits: Priority 
+        //  10 Bits: -ScaleFactor (for max-min fairness with weights equal to TBalancingConfig::Cpus) 
+        //  10 Bits: -CpuIdle 
+        //   6 Bits: PoolId 
+        static ui64 MakeImportance(ELoadClass load, ui8 priority, double scaleFactor, double cpuIdle, TPoolId poolId) { 
+            ui64 idle = std::clamp<i64>(1024 - cpuIdle * 512, 0, 1023); 
+            ui64 scale = std::clamp<i64>(1024 - scaleFactor * 32, 0, 1023); 
+ 
+            Y_VERIFY(ui64(load)     < (1ull << 2ull)); 
+            Y_VERIFY(ui64(priority) < (1ull << 8ull)); 
+            Y_VERIFY(ui64(scale)    < (1ull << 10ull)); 
+            Y_VERIFY(ui64(idle)     < (1ull << 10ull)); 
+            Y_VERIFY(ui64(poolId)   < (1ull << 6ull)); 
+ 
+            static_assert(ui64(MaxPools) <= (1ull << 6ull)); 
+ 
+            ui64 importance = 
+                (ui64(load)     << ui64(6 + 10 + 10 + 8)) | 
+                (ui64(priority) << ui64(6 + 10 + 10)) | 
+                (ui64(scale)    << ui64(6 + 10)) | 
+                (ui64(idle)     << ui64(6)) | 
+                ui64(poolId); 
+            return importance; 
+        } 
+    }; 
+ 
+    // Main balancer implemenation 
+    class TBalancer: public IBalancer { 
+    private: 
+        struct TCpu; 
+        struct TPool; 
+ 
+        bool Disabled = true; 
+        TSpinLock Lock; 
+        ui64 NextBalanceTs; 
+        TVector<TCpu> Cpus; // Indexed by CpuId, can have gaps 
+        TVector<TPool> Pools; // Indexed by PoolId, can have gaps 
+        TBalancerConfig Config; 
+ 
+    public: 
+        // Setup 
+        TBalancer(const TBalancerConfig& config, const TVector<TUnitedExecutorPoolConfig>& unitedPools, ui64 ts); 
+        bool AddCpu(const TCpuAllocation& cpuAlloc, TCpuState* cpu) override; 
+        ~TBalancer(); 
+ 
+        // Balancing 
+        bool TryLock(ui64 ts) override; 
+        void SetPoolStats(TPoolId pool, const TBalancerStats& stats) override; 
+        void Balance() override; 
+        void Unlock() override; 
+ 
+    private: 
+        void MoveCpu(TPool& from, TPool& to); 
+    }; 
+ 
+    struct TBalancer::TPool { 
+        TBalancingConfig Config; 
+        TPoolId PoolId; 
+        TString PoolName; 
+ 
+        // Input data for balancing 
+        TBalancerStats Prev; 
+        TBalancerStats Next; 
+ 
+        // Derived stats 
+        double CpuLoad; 
+        double CpuIdle; 
+ 
+        // Classification 
+        // NOTE: We want to avoid passing cpu back and forth, so we must consider not only current level, 
+        // NOTE: but expected levels after movements also 
+        TLevel CurLevel; // Level with current amount of cpu 
+        TLevel AddLevel; // Level after one cpu acception 
+        TLevel SubLevel; // Level after one cpu donation 
+ 
+        // Balancing state 
+        ui64 CurrentCpus = 0; // Total number of cpus assigned for this pool (zero means pools is not balanced) 
+        ui64 PrevCpus = 0; // Cpus in last period 
+ 
+        explicit TPool(const TBalancingConfig& cfg = {}) 
+            : Config(cfg) 
+        {} 
+ 
+        void Configure(const TBalancingConfig& cfg, const TString& poolName) { 
+            Config = cfg; 
+            // Enforce constraints 
+            Config.MinCpus = std::clamp<ui32>(Config.MinCpus, 1, Config.Cpus); 
+            Config.MaxCpus = Max<ui32>(Config.MaxCpus, Config.Cpus); 
+            PoolName = poolName; 
+        } 
+    }; 
+ 
+    struct TBalancer::TCpu { 
+        TCpuState* State = nullptr; // Cpu state, nullptr means cpu is not used (gap) 
+        TCpuAllocation Alloc; 
+        TPoolId Current; 
+        TPoolId Assigned; 
+    }; 
+ 
+    TBalancer::TBalancer(const TBalancerConfig& config, const TVector<TUnitedExecutorPoolConfig>& unitedPools, ui64 ts) 
+        : NextBalanceTs(ts) 
+        , Config(config) 
+    { 
+        for (TPoolId pool = 0; pool < MaxPools; pool++) { 
+            Pools.emplace_back(); 
+            Pools.back().PoolId = pool; 
+        } 
+        for (const TUnitedExecutorPoolConfig& united : unitedPools) { 
+            Pools[united.PoolId].Configure(united.Balancing, united.PoolName); 
+        } 
+    } 
+ 
+    TBalancer::~TBalancer() { 
+    } 
+ 
+    bool TBalancer::AddCpu(const TCpuAllocation& cpuAlloc, TCpuState* state) { 
+        // Setup 
+        TCpuId cpuId = cpuAlloc.CpuId; 
+        if (Cpus.size() <= cpuId) { 
+            Cpus.resize(cpuId + 1); 
+        } 
+        TCpu& cpu = Cpus[cpuId]; 
+        cpu.State = state; 
+        cpu.Alloc = cpuAlloc; 
+ 
+        // Fill every pool with cpus up to TBalancingConfig::Cpus 
+        TPoolId pool = 0; 
+        for (TPool& p : Pools) { 
+            if (p.CurrentCpus < p.Config.Cpus) { 
+                p.CurrentCpus++; 
+                break; 
+            } 
+            pool++; 
+        } 
+        if (pool != MaxPools) { // cpu under balancer control 
+            state->SwitchPool(pool); 
+            state->AssignPool(pool); 
+            Disabled = false; 
+            return true; 
+        } 
+        return false; // non-balanced cpu 
+    } 
+ 
+    bool TBalancer::TryLock(ui64 ts) { 
+        if (!Disabled && NextBalanceTs < ts && Lock.TryAcquire()) { 
+            NextBalanceTs = ts + Us2Ts(Config.PeriodUs); 
+            return true; 
+        } 
+        return false; 
+    } 
+ 
+    void TBalancer::SetPoolStats(TPoolId pool, const TBalancerStats& stats) { 
+        Y_VERIFY(pool < MaxPools); 
+        TPool& p = Pools[pool]; 
+        p.Prev = p.Next; 
+        p.Next = stats; 
+    } 
+ 
+    void TBalancer::Balance() { 
+        // Update every cpu state 
+        for (TCpu& cpu : Cpus) { 
+            if (cpu.State) { 
+                cpu.State->Load(cpu.Assigned, cpu.Current); 
+                if (cpu.Current < MaxPools && cpu.Current != cpu.Assigned) { 
+                    return; // previous movement has not been applied yet, wait 
+                } 
+            } 
+        } 
+ 
+        // Process stats, classify and compute pool importance 
+        TStackVec<TPool*, MaxPools> order; 
+        for (TPool& pool : Pools) { 
+            if (pool.Config.Cpus == 0) { 
+                continue; // skip gaps (non-existent or non-united pools) 
+            } 
+            if (pool.Prev.Ts == 0 || pool.Prev.Ts >= pool.Next.Ts) { 
+                return; // invalid stats 
+            } 
+ 
+            // Compute derived stats 
+            pool.CpuLoad = (pool.Next.CpuUs - pool.Prev.CpuUs) / Ts2Us(pool.Next.Ts - pool.Prev.Ts); 
+            if (pool.Prev.IdleUs == ui64(-1) || pool.Next.IdleUs == ui64(-1)) { 
+                pool.CpuIdle = pool.CurrentCpus - pool.CpuLoad; // for tests 
+            } else { 
+                pool.CpuIdle = (pool.Next.IdleUs - pool.Prev.IdleUs) / Ts2Us(pool.Next.Ts - pool.Prev.Ts); 
+            } 
+ 
+            // Compute levels 
+            pool.CurLevel = TLevel(pool.Config, pool.PoolId, pool.CurrentCpus, pool.CpuIdle); 
+            pool.AddLevel = TLevel(pool.Config, pool.PoolId, pool.CurrentCpus + 1, pool.CpuIdle); // we expect taken cpu to became utilized 
+            pool.SubLevel = TLevel(pool.Config, pool.PoolId, pool.CurrentCpus - 1, pool.CpuIdle - 1); 
+ 
+            // Prepare for balancing 
+            pool.PrevCpus = pool.CurrentCpus; 
+            order.push_back(&pool); 
+        } 
+ 
+        // Sort pools by importance 
+        std::sort(order.begin(), order.end(), [] (TPool* l, TPool* r) {return l->CurLevel.Importance < r->CurLevel.Importance; }); 
+        for (TPool* pool : order) { 
+            LWPROBE(PoolStats, pool->PoolId, pool->PoolName, pool->CurrentCpus, pool->CurLevel.LoadClass, pool->Config.Priority, pool->CurLevel.ScaleFactor, pool->CpuIdle, pool->CpuLoad, pool->CurLevel.Importance, pool->AddLevel.Importance, pool->SubLevel.Importance); 
+        } 
+ 
+        // Move cpus from lower importance to higher importance pools 
+        for (auto toIter = order.rbegin(); toIter != order.rend(); ++toIter) { 
+            TPool& to = **toIter; 
+            if (to.CurLevel.LoadClass == TLevel::Overloaded && // if pool is overloaded 
+                to.CurrentCpus < to.Config.MaxCpus) // and constraints would not be violated 
+            { 
+                for (auto fromIter = order.begin(); (*fromIter)->CurLevel.Importance < to.CurLevel.Importance; ++fromIter) { 
+                    TPool& from = **fromIter; 
+                    if (from.CurrentCpus == from.PrevCpus && // if not balanced yet 
+                        from.CurrentCpus > from.Config.MinCpus && // and constraints would not be violated 
+                        from.SubLevel.Importance < to.AddLevel.Importance) // and which of two pools is more important would not change after cpu movement 
+                    { 
+                        MoveCpu(from, to); 
+                        from.CurrentCpus--; 
+                        to.CurrentCpus++; 
+                        break; 
+                    } 
+                } 
+            } 
+        } 
+    } 
+ 
+    void TBalancer::MoveCpu(TBalancer::TPool& from, TBalancer::TPool& to) { 
+        for (auto ci = Cpus.rbegin(), ce = Cpus.rend(); ci != ce; ci++) { 
+            TCpu& cpu = *ci; 
+            if (!cpu.State) { 
+                continue; 
+            } 
+            if (cpu.Assigned == from.PoolId) { 
+                cpu.State->AssignPool(to.PoolId); 
+                cpu.Assigned = to.PoolId; 
+                LWPROBE(MoveCpu, from.PoolId, to.PoolId, from.PoolName, to.PoolName, cpu.Alloc.CpuId); 
+                return; 
+            } 
+        } 
+        Y_FAIL(); 
+    } 
+ 
+    void TBalancer::Unlock() { 
+        Lock.Release(); 
+    } 
+ 
+    IBalancer* MakeBalancer(const TBalancerConfig& config, const TVector<TUnitedExecutorPoolConfig>& unitedPools, ui64 ts) { 
+        return new TBalancer(config, unitedPools, ts); 
+    } 
+} 
diff --git a/library/cpp/actors/core/balancer.h b/library/cpp/actors/core/balancer.h
index 9763ec79e1..cf4ea776f0 100644
--- a/library/cpp/actors/core/balancer.h
+++ b/library/cpp/actors/core/balancer.h
@@ -1,27 +1,27 @@
-#pragma once
-
-#include "defs.h"
-#include "config.h"
-#include "cpu_state.h"
-
-namespace NActors {
-    // Per-pool statistics used by balancer
-    struct TBalancerStats {
-        ui64 Ts = 0; // Measurement timestamp
-        ui64 CpuUs = 0; // Total cpu microseconds consumed by pool on all cpus since start
-        ui64 IdleUs = ui64(-1); // Total cpu microseconds in spinning or waiting on futex
-    };
-
-    // Pool cpu balancer
-    struct IBalancer {
-        virtual ~IBalancer() {}
-        virtual bool AddCpu(const TCpuAllocation& cpuAlloc, TCpuState* cpu) = 0;
-        virtual bool TryLock(ui64 ts) = 0;
-        virtual void SetPoolStats(TPoolId pool, const TBalancerStats& stats) = 0;
-        virtual void Balance() = 0;
-        virtual void Unlock() = 0;
-        // TODO: add method for reconfiguration on fly
-    };
-
-    IBalancer* MakeBalancer(const TBalancerConfig& config, const TVector<TUnitedExecutorPoolConfig>& unitedPools, ui64 ts);
-}
+#pragma once 
+ 
+#include "defs.h" 
+#include "config.h" 
+#include "cpu_state.h" 
+ 
+namespace NActors { 
+    // Per-pool statistics used by balancer 
+    struct TBalancerStats { 
+        ui64 Ts = 0; // Measurement timestamp 
+        ui64 CpuUs = 0; // Total cpu microseconds consumed by pool on all cpus since start 
+        ui64 IdleUs = ui64(-1); // Total cpu microseconds in spinning or waiting on futex 
+    }; 
+ 
+    // Pool cpu balancer 
+    struct IBalancer { 
+        virtual ~IBalancer() {} 
+        virtual bool AddCpu(const TCpuAllocation& cpuAlloc, TCpuState* cpu) = 0; 
+        virtual bool TryLock(ui64 ts) = 0; 
+        virtual void SetPoolStats(TPoolId pool, const TBalancerStats& stats) = 0; 
+        virtual void Balance() = 0; 
+        virtual void Unlock() = 0; 
+        // TODO: add method for reconfiguration on fly 
+    }; 
+ 
+    IBalancer* MakeBalancer(const TBalancerConfig& config, const TVector<TUnitedExecutorPoolConfig>& unitedPools, ui64 ts); 
+} 
diff --git a/library/cpp/actors/core/balancer_ut.cpp b/library/cpp/actors/core/balancer_ut.cpp
index 7e5e95f4b9..ac4ebdccb3 100644
--- a/library/cpp/actors/core/balancer_ut.cpp
+++ b/library/cpp/actors/core/balancer_ut.cpp
@@ -1,225 +1,225 @@
-#include "balancer.h"
-
-#include <library/cpp/actors/util/datetime.h>
-#include <library/cpp/lwtrace/all.h>
-#include <library/cpp/testing/unittest/registar.h>
-
-#include <util/stream/str.h>
-
-using namespace NActors;
-
-////////////////////////////////////////////////////////////////////////////////
-
-Y_UNIT_TEST_SUITE(PoolCpuBalancer) {
-    struct TTest {
-        TCpuManagerConfig Config;
-        TCpuMask Available;
-        THolder<IBalancer> Balancer;
-        TVector<TCpuState> CpuStates;
-        TVector<ui64> CpuUs;
-        ui64 Now = 0;
-
-        void SetCpuCount(size_t count) {
-            Config.UnitedWorkers.CpuCount = count;
-            for (TCpuId cpuId = 0; cpuId < count; cpuId++) {
-                Available.Set(cpuId);
-            }
-        }
-
-        void AddPool(ui32 minCpus, ui32 cpus, ui32 maxCpus, ui8 priority = 0) {
-            TUnitedExecutorPoolConfig u;
-            u.PoolId = TPoolId(Config.United.size());
-            u.Balancing.Cpus = cpus;
-            u.Balancing.MinCpus = minCpus;
-            u.Balancing.MaxCpus = maxCpus;
-            u.Balancing.Priority = priority;
-            Config.United.push_back(u);
-        }
-
-        void Start() {
-            TCpuAllocationConfig allocation(Available, Config);
-            Balancer.Reset(MakeBalancer(Config.UnitedWorkers.Balancer, Config.United, 0));
-            CpuStates.resize(allocation.Items.size()); // do not resize it later to avoid dangling pointers
-            CpuUs.resize(CpuStates.size());
-            for (const TCpuAllocation& cpuAlloc : allocation.Items) {
-                bool added = Balancer->AddCpu(cpuAlloc, &CpuStates[cpuAlloc.CpuId]);
-                UNIT_ASSERT(added);
-            }
-        }
-
-        void Balance(ui64 deltaTs, const TVector<ui64>& cpuUs) {
-            Now += deltaTs;
-            ui64 ts = Now;
-            if (Balancer->TryLock(ts)) {
-                for (TPoolId pool = 0; pool < cpuUs.size(); pool++) {
-                    CpuUs[pool] += cpuUs[pool];
-                    TBalancerStats stats;
-                    stats.Ts = ts;
-                    stats.CpuUs = CpuUs[pool];
-                    Balancer->SetPoolStats(pool, stats);
-                }
-                Balancer->Balance();
-                Balancer->Unlock();
-            }
-        }
-
-        void ApplyMovements() {
-            for (TCpuState& state : CpuStates) {
-                TPoolId current;
-                TPoolId assigned;
-                state.Load(assigned, current);
-                state.SwitchPool(assigned);
-            }
-        }
-
-        static TString ToStr(const TVector<ui64>& values) {
-            TStringStream ss;
-            ss << "{";
-            for (auto v : values) {
-                ss << " " << v;
-            }
-            ss << " }";
-            return ss.Str();
-        }
-
-        void AssertPoolsCurrentCpus(const TVector<ui64>& cpuRequired) {
-            TVector<ui64> cpuCurrent;
-            cpuCurrent.resize(cpuRequired.size());
-            for (TCpuState& state : CpuStates) {
-                TPoolId current;
-                TPoolId assigned;
-                state.Load(assigned, current);
-                cpuCurrent[current]++;
-            }
-            for (TPoolId pool = 0; pool < cpuRequired.size(); pool++) {
-                UNIT_ASSERT_C(cpuCurrent[pool] == cpuRequired[pool],
-                    "cpu distribution mismatch, required " << ToStr(cpuRequired) << " but got " << ToStr(cpuCurrent));
-            }
-        }
-    };
-
-    Y_UNIT_TEST(StartLwtrace) {
-        NLWTrace::StartLwtraceFromEnv();
-    }
-
-    Y_UNIT_TEST(AllOverloaded) {
-        TTest t;
-        int cpus = 10;
-        t.SetCpuCount(cpus);
-        t.AddPool(1, 1, 10); // pool=0
-        t.AddPool(1, 2, 10); // pool=1
-        t.AddPool(1, 3, 10); // pool=2
-        t.AddPool(1, 4, 10); // pool=2
-        t.Start();
-        ui64 dts = 1.01 * Us2Ts(t.Config.UnitedWorkers.Balancer.PeriodUs);
-        ui64 totalCpuUs = cpus * Ts2Us(dts); // pretend every pool has consumed as whole actorsystem, overload
-        for (int i = 0; i < cpus; i++) {
-            t.Balance(dts, {totalCpuUs, totalCpuUs, totalCpuUs, totalCpuUs});
-            t.ApplyMovements();
-        }
-        t.AssertPoolsCurrentCpus({1, 2, 3, 4});
-    }
-
-    Y_UNIT_TEST(OneOverloaded) {
-        TTest t;
-        int cpus = 10;
-        t.SetCpuCount(cpus);
-        t.AddPool(1, 1, 10); // pool=0
-        t.AddPool(1, 2, 10); // pool=1
-        t.AddPool(1, 3, 10); // pool=2
-        t.AddPool(1, 4, 10); // pool=2
-        t.Start();
-        ui64 dts = 1.01 * Us2Ts(t.Config.UnitedWorkers.Balancer.PeriodUs);
-        ui64 totalCpuUs = cpus * Ts2Us(dts);
-        for (int i = 0; i < cpus; i++) {
-            t.Balance(dts, {totalCpuUs, 0, 0, 0});
-            t.ApplyMovements();
-        }
-        t.AssertPoolsCurrentCpus({7, 1, 1, 1});
-        for (int i = 0; i < cpus; i++) {
-            t.Balance(dts, {0, totalCpuUs, 0, 0});
-            t.ApplyMovements();
-        }
-        t.AssertPoolsCurrentCpus({1, 7, 1, 1});
-        for (int i = 0; i < cpus; i++) {
-            t.Balance(dts, {0, 0, totalCpuUs, 0});
-            t.ApplyMovements();
-        }
-        t.AssertPoolsCurrentCpus({1, 1, 7, 1});
-        for (int i = 0; i < cpus; i++) {
-            t.Balance(dts, {0, 0, 0, totalCpuUs});
-            t.ApplyMovements();
-        }
-        t.AssertPoolsCurrentCpus({1, 1, 1, 7});
-    }
-
-    Y_UNIT_TEST(TwoOverloadedFairness) {
-        TTest t;
-        int cpus = 10;
-        t.SetCpuCount(cpus);
-        t.AddPool(1, 1, 10); // pool=0
-        t.AddPool(1, 2, 10); // pool=1
-        t.AddPool(1, 3, 10); // pool=2
-        t.AddPool(1, 4, 10); // pool=2
-        t.Start();
-        ui64 dts = 1.01 * Us2Ts(t.Config.UnitedWorkers.Balancer.PeriodUs);
-        ui64 totalCpuUs = cpus * Ts2Us(dts);
-        for (int i = 0; i < cpus; i++) {
-            t.Balance(dts, {totalCpuUs, totalCpuUs, 0, 0});
-            t.ApplyMovements();
-        }
-        t.AssertPoolsCurrentCpus({3, 5, 1, 1});
-        for (int i = 0; i < cpus; i++) {
-            t.Balance(dts, {totalCpuUs, 0, totalCpuUs, 0});
-            t.ApplyMovements();
-        }
-        t.AssertPoolsCurrentCpus({2, 1, 6, 1});
-        for (int i = 0; i < cpus; i++) {
-            t.Balance(dts, {totalCpuUs, 0, 0, totalCpuUs});
-            t.ApplyMovements();
-        }
-        t.AssertPoolsCurrentCpus({2, 1, 1, 6});
-        for (int i = 0; i < cpus; i++) {
-            t.Balance(dts, {0, totalCpuUs, totalCpuUs, 0});
-            t.ApplyMovements();
-        }
-        t.AssertPoolsCurrentCpus({1, 3, 5, 1});
-        for (int i = 0; i < cpus; i++) {
-            t.Balance(dts, {0, totalCpuUs, 0, totalCpuUs});
-            t.ApplyMovements();
-        }
-        t.AssertPoolsCurrentCpus({1, 3, 1, 5});
-        for (int i = 0; i < cpus; i++) {
-            t.Balance(dts, {0, 0, totalCpuUs, totalCpuUs});
-            t.ApplyMovements();
-        }
-        t.AssertPoolsCurrentCpus({1, 1, 3, 5});
-    }
-
-    Y_UNIT_TEST(TwoOverloadedPriority) {
-        TTest t;
-        int cpus = 20;
-        t.SetCpuCount(cpus);
-        t.AddPool(1, 5, 20, 0); // pool=0
-        t.AddPool(1, 5, 20, 1); // pool=1
-        t.AddPool(1, 5, 20, 2); // pool=2
-        t.AddPool(1, 5, 20, 3); // pool=3
-        t.Start();
-        ui64 dts = 1.01 * Us2Ts(t.Config.UnitedWorkers.Balancer.PeriodUs);
-        ui64 mErlang = Ts2Us(dts) / 1000;
-        for (int i = 0; i < cpus; i++) {
-            t.Balance(dts, {20000 * mErlang, 2500 * mErlang, 4500 * mErlang, 9500 * mErlang});
-            t.ApplyMovements();
-        }
-        t.AssertPoolsCurrentCpus({2, 3, 5, 10});
-        t.Balance(dts, {20000 * mErlang, 2500 * mErlang, 4500 * mErlang, 8500 * mErlang});
-        t.ApplyMovements();
-        t.AssertPoolsCurrentCpus({3, 3, 5, 9});
-        // NOTE: this operation require one move, but we do not make global analysis, so multiple steps (1->2 & 0->1) are required (can be optimized later)
-        for (int i = 0; i < 3; i++) {
-            t.Balance(dts, {20000 * mErlang, 2500 * mErlang, 5500 * mErlang, 8500 * mErlang});
-            t.ApplyMovements();
-        }
-        t.AssertPoolsCurrentCpus({2, 3, 6, 9});
-    }
-}
+#include "balancer.h" 
+ 
+#include <library/cpp/actors/util/datetime.h> 
+#include <library/cpp/lwtrace/all.h> 
+#include <library/cpp/testing/unittest/registar.h> 
+ 
+#include <util/stream/str.h> 
+ 
+using namespace NActors; 
+ 
+//////////////////////////////////////////////////////////////////////////////// 
+ 
+Y_UNIT_TEST_SUITE(PoolCpuBalancer) { 
+    struct TTest { 
+        TCpuManagerConfig Config; 
+        TCpuMask Available; 
+        THolder<IBalancer> Balancer; 
+        TVector<TCpuState> CpuStates; 
+        TVector<ui64> CpuUs; 
+        ui64 Now = 0; 
+ 
+        void SetCpuCount(size_t count) { 
+            Config.UnitedWorkers.CpuCount = count; 
+            for (TCpuId cpuId = 0; cpuId < count; cpuId++) { 
+                Available.Set(cpuId); 
+            } 
+        } 
+ 
+        void AddPool(ui32 minCpus, ui32 cpus, ui32 maxCpus, ui8 priority = 0) { 
+            TUnitedExecutorPoolConfig u; 
+            u.PoolId = TPoolId(Config.United.size()); 
+            u.Balancing.Cpus = cpus; 
+            u.Balancing.MinCpus = minCpus; 
+            u.Balancing.MaxCpus = maxCpus; 
+            u.Balancing.Priority = priority; 
+            Config.United.push_back(u); 
+        } 
+ 
+        void Start() { 
+            TCpuAllocationConfig allocation(Available, Config); 
+            Balancer.Reset(MakeBalancer(Config.UnitedWorkers.Balancer, Config.United, 0)); 
+            CpuStates.resize(allocation.Items.size()); // do not resize it later to avoid dangling pointers 
+            CpuUs.resize(CpuStates.size()); 
+            for (const TCpuAllocation& cpuAlloc : allocation.Items) { 
+                bool added = Balancer->AddCpu(cpuAlloc, &CpuStates[cpuAlloc.CpuId]); 
+                UNIT_ASSERT(added); 
+            } 
+        } 
+ 
+        void Balance(ui64 deltaTs, const TVector<ui64>& cpuUs) { 
+            Now += deltaTs; 
+            ui64 ts = Now; 
+            if (Balancer->TryLock(ts)) { 
+                for (TPoolId pool = 0; pool < cpuUs.size(); pool++) { 
+                    CpuUs[pool] += cpuUs[pool]; 
+                    TBalancerStats stats; 
+                    stats.Ts = ts; 
+                    stats.CpuUs = CpuUs[pool]; 
+                    Balancer->SetPoolStats(pool, stats); 
+                } 
+                Balancer->Balance(); 
+                Balancer->Unlock(); 
+            } 
+        } 
+ 
+        void ApplyMovements() { 
+            for (TCpuState& state : CpuStates) { 
+                TPoolId current; 
+                TPoolId assigned; 
+                state.Load(assigned, current); 
+                state.SwitchPool(assigned); 
+            } 
+        } 
+ 
+        static TString ToStr(const TVector<ui64>& values) { 
+            TStringStream ss; 
+            ss << "{"; 
+            for (auto v : values) { 
+                ss << " " << v; 
+            } 
+            ss << " }"; 
+            return ss.Str(); 
+        } 
+ 
+        void AssertPoolsCurrentCpus(const TVector<ui64>& cpuRequired) { 
+            TVector<ui64> cpuCurrent; 
+            cpuCurrent.resize(cpuRequired.size()); 
+            for (TCpuState& state : CpuStates) { 
+                TPoolId current; 
+                TPoolId assigned; 
+                state.Load(assigned, current); 
+                cpuCurrent[current]++; 
+            } 
+            for (TPoolId pool = 0; pool < cpuRequired.size(); pool++) { 
+                UNIT_ASSERT_C(cpuCurrent[pool] == cpuRequired[pool], 
+                    "cpu distribution mismatch, required " << ToStr(cpuRequired) << " but got " << ToStr(cpuCurrent)); 
+            } 
+        } 
+    }; 
+ 
+    Y_UNIT_TEST(StartLwtrace) { 
+        NLWTrace::StartLwtraceFromEnv(); 
+    } 
+ 
+    Y_UNIT_TEST(AllOverloaded) { 
+        TTest t; 
+        int cpus = 10; 
+        t.SetCpuCount(cpus); 
+        t.AddPool(1, 1, 10); // pool=0 
+        t.AddPool(1, 2, 10); // pool=1 
+        t.AddPool(1, 3, 10); // pool=2 
+        t.AddPool(1, 4, 10); // pool=2 
+        t.Start(); 
+        ui64 dts = 1.01 * Us2Ts(t.Config.UnitedWorkers.Balancer.PeriodUs); 
+        ui64 totalCpuUs = cpus * Ts2Us(dts); // pretend every pool has consumed as whole actorsystem, overload 
+        for (int i = 0; i < cpus; i++) { 
+            t.Balance(dts, {totalCpuUs, totalCpuUs, totalCpuUs, totalCpuUs}); 
+            t.ApplyMovements(); 
+        } 
+        t.AssertPoolsCurrentCpus({1, 2, 3, 4}); 
+    } 
+ 
+    Y_UNIT_TEST(OneOverloaded) { 
+        TTest t; 
+        int cpus = 10; 
+        t.SetCpuCount(cpus); 
+        t.AddPool(1, 1, 10); // pool=0 
+        t.AddPool(1, 2, 10); // pool=1 
+        t.AddPool(1, 3, 10); // pool=2 
+        t.AddPool(1, 4, 10); // pool=2 
+        t.Start(); 
+        ui64 dts = 1.01 * Us2Ts(t.Config.UnitedWorkers.Balancer.PeriodUs); 
+        ui64 totalCpuUs = cpus * Ts2Us(dts); 
+        for (int i = 0; i < cpus; i++) { 
+            t.Balance(dts, {totalCpuUs, 0, 0, 0}); 
+            t.ApplyMovements(); 
+        } 
+        t.AssertPoolsCurrentCpus({7, 1, 1, 1}); 
+        for (int i = 0; i < cpus; i++) { 
+            t.Balance(dts, {0, totalCpuUs, 0, 0}); 
+            t.ApplyMovements(); 
+        } 
+        t.AssertPoolsCurrentCpus({1, 7, 1, 1}); 
+        for (int i = 0; i < cpus; i++) { 
+            t.Balance(dts, {0, 0, totalCpuUs, 0}); 
+            t.ApplyMovements(); 
+        } 
+        t.AssertPoolsCurrentCpus({1, 1, 7, 1}); 
+        for (int i = 0; i < cpus; i++) { 
+            t.Balance(dts, {0, 0, 0, totalCpuUs}); 
+            t.ApplyMovements(); 
+        } 
+        t.AssertPoolsCurrentCpus({1, 1, 1, 7}); 
+    } 
+ 
+    Y_UNIT_TEST(TwoOverloadedFairness) { 
+        TTest t; 
+        int cpus = 10; 
+        t.SetCpuCount(cpus); 
+        t.AddPool(1, 1, 10); // pool=0 
+        t.AddPool(1, 2, 10); // pool=1 
+        t.AddPool(1, 3, 10); // pool=2 
+        t.AddPool(1, 4, 10); // pool=2 
+        t.Start(); 
+        ui64 dts = 1.01 * Us2Ts(t.Config.UnitedWorkers.Balancer.PeriodUs); 
+        ui64 totalCpuUs = cpus * Ts2Us(dts); 
+        for (int i = 0; i < cpus; i++) { 
+            t.Balance(dts, {totalCpuUs, totalCpuUs, 0, 0}); 
+            t.ApplyMovements(); 
+        } 
+        t.AssertPoolsCurrentCpus({3, 5, 1, 1}); 
+        for (int i = 0; i < cpus; i++) { 
+            t.Balance(dts, {totalCpuUs, 0, totalCpuUs, 0}); 
+            t.ApplyMovements(); 
+        } 
+        t.AssertPoolsCurrentCpus({2, 1, 6, 1}); 
+        for (int i = 0; i < cpus; i++) { 
+            t.Balance(dts, {totalCpuUs, 0, 0, totalCpuUs}); 
+            t.ApplyMovements(); 
+        } 
+        t.AssertPoolsCurrentCpus({2, 1, 1, 6}); 
+        for (int i = 0; i < cpus; i++) { 
+            t.Balance(dts, {0, totalCpuUs, totalCpuUs, 0}); 
+            t.ApplyMovements(); 
+        } 
+        t.AssertPoolsCurrentCpus({1, 3, 5, 1}); 
+        for (int i = 0; i < cpus; i++) { 
+            t.Balance(dts, {0, totalCpuUs, 0, totalCpuUs}); 
+            t.ApplyMovements(); 
+        } 
+        t.AssertPoolsCurrentCpus({1, 3, 1, 5}); 
+        for (int i = 0; i < cpus; i++) { 
+            t.Balance(dts, {0, 0, totalCpuUs, totalCpuUs}); 
+            t.ApplyMovements(); 
+        } 
+        t.AssertPoolsCurrentCpus({1, 1, 3, 5}); 
+    } 
+ 
+    Y_UNIT_TEST(TwoOverloadedPriority) { 
+        TTest t; 
+        int cpus = 20; 
+        t.SetCpuCount(cpus); 
+        t.AddPool(1, 5, 20, 0); // pool=0 
+        t.AddPool(1, 5, 20, 1); // pool=1 
+        t.AddPool(1, 5, 20, 2); // pool=2 
+        t.AddPool(1, 5, 20, 3); // pool=3 
+        t.Start(); 
+        ui64 dts = 1.01 * Us2Ts(t.Config.UnitedWorkers.Balancer.PeriodUs); 
+        ui64 mErlang = Ts2Us(dts) / 1000; 
+        for (int i = 0; i < cpus; i++) { 
+            t.Balance(dts, {20000 * mErlang, 2500 * mErlang, 4500 * mErlang, 9500 * mErlang}); 
+            t.ApplyMovements(); 
+        } 
+        t.AssertPoolsCurrentCpus({2, 3, 5, 10}); 
+        t.Balance(dts, {20000 * mErlang, 2500 * mErlang, 4500 * mErlang, 8500 * mErlang}); 
+        t.ApplyMovements(); 
+        t.AssertPoolsCurrentCpus({3, 3, 5, 9}); 
+        // NOTE: this operation require one move, but we do not make global analysis, so multiple steps (1->2 & 0->1) are required (can be optimized later) 
+        for (int i = 0; i < 3; i++) { 
+            t.Balance(dts, {20000 * mErlang, 2500 * mErlang, 5500 * mErlang, 8500 * mErlang}); 
+            t.ApplyMovements(); 
+        } 
+        t.AssertPoolsCurrentCpus({2, 3, 6, 9}); 
+    } 
+} 
diff --git a/library/cpp/actors/core/config.h b/library/cpp/actors/core/config.h
index 2486bf4c43..750bdd3a07 100644
--- a/library/cpp/actors/core/config.h
+++ b/library/cpp/actors/core/config.h
@@ -1,239 +1,239 @@
-#pragma once
-
-#include "defs.h"
-#include <library/cpp/actors/util/cpumask.h>
-#include <library/cpp/monlib/dynamic_counters/counters.h>
-#include <util/datetime/base.h>
-#include <util/generic/ptr.h>
-#include <util/generic/string.h>
-#include <util/generic/vector.h>
-
-namespace NActors {
-
-    struct TBalancingConfig {
-        // Default cpu count (used during overload). Zero value disables this pool balancing
-        // 1) Sum of `Cpus` on all pools cannot be changed without restart
-        //    (changing cpu mode between Shared and Assigned is not implemented yet)
-        // 2) This sum must be equal to TUnitedWorkersConfig::CpuCount,
-        //    otherwise `CpuCount - SUM(Cpus)` cpus will be in Shared mode (i.e. actorsystem 2.0)
-        ui32 Cpus = 0;
-
-        ui32 MinCpus = 0; // Lower balancing bound, should be at least 1, and not greater than `Cpus`
-        ui32 MaxCpus = 0; // Higher balancing bound, should be not lower than `Cpus`
-        ui8 Priority = 0; // Priority of pool to obtain cpu due to balancing (higher is better)
-        ui64 ToleratedLatencyUs = 0; // p100-latency threshold indicating that more cpus are required by pool
-    };
-
-    struct TBalancerConfig {
-        ui64 PeriodUs = 15000000; // Time between balancer steps
-    };
-
-    struct TBasicExecutorPoolConfig {
-        static constexpr TDuration DEFAULT_TIME_PER_MAILBOX = TDuration::MilliSeconds(10);
-        static constexpr ui32 DEFAULT_EVENTS_PER_MAILBOX = 100;
-
-        ui32 PoolId = 0;
-        TString PoolName;
-        ui32 Threads = 1;
-        ui64 SpinThreshold = 100;
-        TCpuMask Affinity; // Executor thread affinity
-        TDuration TimePerMailbox = DEFAULT_TIME_PER_MAILBOX;
-        ui32 EventsPerMailbox = DEFAULT_EVENTS_PER_MAILBOX;
-        int RealtimePriority = 0;
-        ui32 MaxActivityType = 1;
-    };
-
-    struct TIOExecutorPoolConfig {
-        ui32 PoolId = 0;
-        TString PoolName;
-        ui32 Threads = 1;
-        TCpuMask Affinity; // Executor thread affinity
-        ui32 MaxActivityType = 1;
-    };
-
-    struct TUnitedExecutorPoolConfig {
-        static constexpr TDuration DEFAULT_TIME_PER_MAILBOX = TDuration::MilliSeconds(10);
-        static constexpr ui32 DEFAULT_EVENTS_PER_MAILBOX = 100;
-
-        ui32 PoolId = 0;
-        TString PoolName;
-
-        // Resource sharing
-        ui32 Concurrency = 0; // Limits simultaneously running mailboxes count if set to non-zero value (do not set if Balancing.Cpus != 0)
-        TPoolWeight Weight = 0; // Weight in fair cpu-local pool scheduler
-        TCpuMask Allowed; // Allowed CPUs for workers to run this pool on (ignored if balancer works, i.e. actorsystem 1.5)
-
-        // Single mailbox execution limits
-        TDuration TimePerMailbox = DEFAULT_TIME_PER_MAILBOX;
-        ui32 EventsPerMailbox = DEFAULT_EVENTS_PER_MAILBOX;
-
-        // Introspection
-        ui32 MaxActivityType = 1;
-
-        // Long-term balancing
-        TBalancingConfig Balancing;
-    };
-
-    struct TUnitedWorkersConfig {
-        ui32 CpuCount = 0; // Total CPUs running united workers (i.e. TBasicExecutorPoolConfig::Threads analog); set to zero to disable united workers
-        ui64 SpinThresholdUs = 100; // Limit for active spinning in case all pools became idle
-        ui64 PoolLimitUs = 500; // Soft limit on pool execution
-        ui64 EventLimitUs = 100; // Hard limit on last event execution exceeding pool limit
-        ui64 LimitPrecisionUs = 100; // Maximum delay of timer on limit excess (delay needed to avoid settimer syscall on every pool switch)
-        ui64 FastWorkerPriority = 10; // Real-time priority of workers not exceeding hard limits
-        ui64 IdleWorkerPriority = 20; // Real-time priority of standby workers waiting for hard preemption on timers (should be greater than FastWorkerPriority)
-        TCpuMask Allowed; // Allowed CPUs for workers to run on (every worker has affinity for exactly one cpu)
-        bool NoRealtime = false; // For environments w/o permissions for RT-threads
-        bool NoAffinity = false; // For environments w/o permissions for cpu affinity
-        TBalancerConfig Balancer;
-    };
-
-    struct TCpuManagerConfig {
-        TUnitedWorkersConfig UnitedWorkers;
-        TVector<TBasicExecutorPoolConfig> Basic;
-        TVector<TIOExecutorPoolConfig> IO;
-        TVector<TUnitedExecutorPoolConfig> United;
-
-        ui32 GetExecutorsCount() const {
-            return Basic.size() + IO.size() + United.size();
-        }
-
-        TString GetPoolName(ui32 poolId) const {
-            for (const auto& p : Basic) {
-                if (p.PoolId == poolId) {
-                    return p.PoolName;
-                }
-            }
-            for (const auto& p : IO) {
-                if (p.PoolId == poolId) {
-                    return p.PoolName;
-                }
-            }
-            for (const auto& p : United) {
-                if (p.PoolId == poolId) {
-                    return p.PoolName;
-                }
-            }
-            Y_FAIL("undefined pool id: %" PRIu32, (ui32)poolId);
-        }
-
-        ui32 GetThreads(ui32 poolId) const {
-            for (const auto& p : Basic) {
-                if (p.PoolId == poolId) {
-                    return p.Threads;
-                }
-            }
-            for (const auto& p : IO) {
-                if (p.PoolId == poolId) {
-                    return p.Threads;
-                }
-            }
-            for (const auto& p : United) {
-                if (p.PoolId == poolId) {
-                    return p.Concurrency ? p.Concurrency : UnitedWorkers.CpuCount;
-                }
-            }
-            Y_FAIL("undefined pool id: %" PRIu32, (ui32)poolId);
-        }
-    };
-
-    struct TSchedulerConfig {
-        TSchedulerConfig(
-                ui64 resolution = 1024,
-                ui64 spinThreshold = 100,
-                ui64 progress = 10000,
-                bool useSchedulerActor = false)
-            : ResolutionMicroseconds(resolution)
-            , SpinThreshold(spinThreshold)
-            , ProgressThreshold(progress)
-            , UseSchedulerActor(useSchedulerActor)
-        {}
-
-        ui64 ResolutionMicroseconds = 1024;
-        ui64 SpinThreshold = 100;
-        ui64 ProgressThreshold = 10000;
-        bool UseSchedulerActor = false; // False is default because tests use scheduler thread
-        ui64 RelaxedSendPaceEventsPerSecond = 200000;
-        ui64 RelaxedSendPaceEventsPerCycle = RelaxedSendPaceEventsPerSecond * ResolutionMicroseconds / 1000000;
-        // For resolution >= 250000 microseconds threshold is SendPace
-        // For resolution <= 250 microseconds threshold is 20 * SendPace
-        ui64 RelaxedSendThresholdEventsPerSecond = RelaxedSendPaceEventsPerSecond *
-            (20 - ((20 - 1) * ClampVal(ResolutionMicroseconds, ui64(250), ui64(250000)) - 250) / (250000 - 250));
-        ui64 RelaxedSendThresholdEventsPerCycle = RelaxedSendThresholdEventsPerSecond * ResolutionMicroseconds / 1000000;
-
-        // Optional subsection for scheduler counters (usually subsystem=utils)
-        NMonitoring::TDynamicCounterPtr MonCounters = nullptr;
-    };
-
-    struct TCpuAllocation {
-        struct TPoolAllocation {
-            TPoolId PoolId;
-            TPoolWeight Weight;
-
-            TPoolAllocation(TPoolId poolId = 0, TPoolWeight weight = 0)
-                : PoolId(poolId)
-                , Weight(weight)
-            {}
-        };
-
-        TCpuId CpuId;
-        TVector<TPoolAllocation> AllowedPools;
-
-        TPoolsMask GetPoolsMask() const {
-            TPoolsMask mask = 0;
-            for (const auto& pa : AllowedPools) {
-                if (pa.PoolId < MaxPools) {
-                    mask &= (1ull << pa.PoolId);
-                }
-            }
-            return mask;
-        }
-
-        bool HasPool(TPoolId pool) const {
-            for (const auto& pa : AllowedPools) {
-                if (pa.PoolId == pool) {
-                    return true;
-                }
-            }
-            return false;
-        }
-    };
-
-    struct TCpuAllocationConfig {
-        TVector<TCpuAllocation> Items;
-
-        TCpuAllocationConfig(const TCpuMask& available, const TCpuManagerConfig& cfg) {
-            for (const TUnitedExecutorPoolConfig& pool : cfg.United) {
-                Y_VERIFY(pool.PoolId < MaxPools, "wrong PoolId of united executor pool: %s(%d)",
-                    pool.PoolName.c_str(), (pool.PoolId));
-            }
-            ui32 allocated[MaxPools] = {0};
-            for (TCpuId cpu = 0; cpu < available.Size() && Items.size() < cfg.UnitedWorkers.CpuCount; cpu++) {
-                if (available.IsSet(cpu)) {
-                    TCpuAllocation item;
-                    item.CpuId = cpu;
-                    for (const TUnitedExecutorPoolConfig& pool : cfg.United) {
-                        if (cfg.UnitedWorkers.Allowed.IsEmpty() || cfg.UnitedWorkers.Allowed.IsSet(cpu)) {
-                            if (pool.Allowed.IsEmpty() || pool.Allowed.IsSet(cpu)) {
-                                item.AllowedPools.emplace_back(pool.PoolId, pool.Weight);
-                                allocated[pool.PoolId]++;
-                            }
-                        }
-                    }
-                    if (!item.AllowedPools.empty()) {
-                        Items.push_back(item);
-                    }
-                }
-            }
-            for (const TUnitedExecutorPoolConfig& pool : cfg.United) {
-                Y_VERIFY(allocated[pool.PoolId] > 0, "unable to allocate cpu for united executor pool: %s(%d)",
-                    pool.PoolName.c_str(), (pool.PoolId));
-            }
-        }
-
-        operator bool() const {
-            return !Items.empty();
-        }
-    };
-
-}
+#pragma once 
+ 
+#include "defs.h" 
+#include <library/cpp/actors/util/cpumask.h> 
+#include <library/cpp/monlib/dynamic_counters/counters.h> 
+#include <util/datetime/base.h> 
+#include <util/generic/ptr.h> 
+#include <util/generic/string.h> 
+#include <util/generic/vector.h> 
+ 
+namespace NActors { 
+ 
+    struct TBalancingConfig { 
+        // Default cpu count (used during overload). Zero value disables this pool balancing 
+        // 1) Sum of `Cpus` on all pools cannot be changed without restart 
+        //    (changing cpu mode between Shared and Assigned is not implemented yet) 
+        // 2) This sum must be equal to TUnitedWorkersConfig::CpuCount, 
+        //    otherwise `CpuCount - SUM(Cpus)` cpus will be in Shared mode (i.e. actorsystem 2.0) 
+        ui32 Cpus = 0; 
+ 
+        ui32 MinCpus = 0; // Lower balancing bound, should be at least 1, and not greater than `Cpus` 
+        ui32 MaxCpus = 0; // Higher balancing bound, should be not lower than `Cpus` 
+        ui8 Priority = 0; // Priority of pool to obtain cpu due to balancing (higher is better) 
+        ui64 ToleratedLatencyUs = 0; // p100-latency threshold indicating that more cpus are required by pool 
+    }; 
+ 
+    struct TBalancerConfig { 
+        ui64 PeriodUs = 15000000; // Time between balancer steps 
+    }; 
+ 
+    struct TBasicExecutorPoolConfig { 
+        static constexpr TDuration DEFAULT_TIME_PER_MAILBOX = TDuration::MilliSeconds(10); 
+        static constexpr ui32 DEFAULT_EVENTS_PER_MAILBOX = 100; 
+ 
+        ui32 PoolId = 0; 
+        TString PoolName; 
+        ui32 Threads = 1; 
+        ui64 SpinThreshold = 100; 
+        TCpuMask Affinity; // Executor thread affinity 
+        TDuration TimePerMailbox = DEFAULT_TIME_PER_MAILBOX; 
+        ui32 EventsPerMailbox = DEFAULT_EVENTS_PER_MAILBOX; 
+        int RealtimePriority = 0; 
+        ui32 MaxActivityType = 1; 
+    }; 
+ 
+    struct TIOExecutorPoolConfig { 
+        ui32 PoolId = 0; 
+        TString PoolName; 
+        ui32 Threads = 1; 
+        TCpuMask Affinity; // Executor thread affinity 
+        ui32 MaxActivityType = 1; 
+    }; 
+ 
+    struct TUnitedExecutorPoolConfig { 
+        static constexpr TDuration DEFAULT_TIME_PER_MAILBOX = TDuration::MilliSeconds(10); 
+        static constexpr ui32 DEFAULT_EVENTS_PER_MAILBOX = 100; 
+ 
+        ui32 PoolId = 0; 
+        TString PoolName; 
+ 
+        // Resource sharing 
+        ui32 Concurrency = 0; // Limits simultaneously running mailboxes count if set to non-zero value (do not set if Balancing.Cpus != 0) 
+        TPoolWeight Weight = 0; // Weight in fair cpu-local pool scheduler 
+        TCpuMask Allowed; // Allowed CPUs for workers to run this pool on (ignored if balancer works, i.e. actorsystem 1.5) 
+ 
+        // Single mailbox execution limits 
+        TDuration TimePerMailbox = DEFAULT_TIME_PER_MAILBOX; 
+        ui32 EventsPerMailbox = DEFAULT_EVENTS_PER_MAILBOX; 
+ 
+        // Introspection 
+        ui32 MaxActivityType = 1; 
+ 
+        // Long-term balancing 
+        TBalancingConfig Balancing; 
+    }; 
+ 
+    struct TUnitedWorkersConfig { 
+        ui32 CpuCount = 0; // Total CPUs running united workers (i.e. TBasicExecutorPoolConfig::Threads analog); set to zero to disable united workers 
+        ui64 SpinThresholdUs = 100; // Limit for active spinning in case all pools became idle 
+        ui64 PoolLimitUs = 500; // Soft limit on pool execution 
+        ui64 EventLimitUs = 100; // Hard limit on last event execution exceeding pool limit 
+        ui64 LimitPrecisionUs = 100; // Maximum delay of timer on limit excess (delay needed to avoid settimer syscall on every pool switch) 
+        ui64 FastWorkerPriority = 10; // Real-time priority of workers not exceeding hard limits 
+        ui64 IdleWorkerPriority = 20; // Real-time priority of standby workers waiting for hard preemption on timers (should be greater than FastWorkerPriority) 
+        TCpuMask Allowed; // Allowed CPUs for workers to run on (every worker has affinity for exactly one cpu) 
+        bool NoRealtime = false; // For environments w/o permissions for RT-threads 
+        bool NoAffinity = false; // For environments w/o permissions for cpu affinity 
+        TBalancerConfig Balancer; 
+    }; 
+ 
+    struct TCpuManagerConfig { 
+        TUnitedWorkersConfig UnitedWorkers; 
+        TVector<TBasicExecutorPoolConfig> Basic; 
+        TVector<TIOExecutorPoolConfig> IO; 
+        TVector<TUnitedExecutorPoolConfig> United; 
+ 
+        ui32 GetExecutorsCount() const { 
+            return Basic.size() + IO.size() + United.size(); 
+        } 
+ 
+        TString GetPoolName(ui32 poolId) const { 
+            for (const auto& p : Basic) { 
+                if (p.PoolId == poolId) { 
+                    return p.PoolName; 
+                } 
+            } 
+            for (const auto& p : IO) { 
+                if (p.PoolId == poolId) { 
+                    return p.PoolName; 
+                } 
+            } 
+            for (const auto& p : United) { 
+                if (p.PoolId == poolId) { 
+                    return p.PoolName; 
+                } 
+            } 
+            Y_FAIL("undefined pool id: %" PRIu32, (ui32)poolId); 
+        } 
+ 
+        ui32 GetThreads(ui32 poolId) const { 
+            for (const auto& p : Basic) { 
+                if (p.PoolId == poolId) { 
+                    return p.Threads; 
+                } 
+            } 
+            for (const auto& p : IO) { 
+                if (p.PoolId == poolId) { 
+                    return p.Threads; 
+                } 
+            } 
+            for (const auto& p : United) { 
+                if (p.PoolId == poolId) { 
+                    return p.Concurrency ? p.Concurrency : UnitedWorkers.CpuCount; 
+                } 
+            } 
+            Y_FAIL("undefined pool id: %" PRIu32, (ui32)poolId); 
+        } 
+    }; 
+ 
+    struct TSchedulerConfig { 
+        TSchedulerConfig( 
+                ui64 resolution = 1024, 
+                ui64 spinThreshold = 100, 
+                ui64 progress = 10000, 
+                bool useSchedulerActor = false) 
+            : ResolutionMicroseconds(resolution) 
+            , SpinThreshold(spinThreshold) 
+            , ProgressThreshold(progress) 
+            , UseSchedulerActor(useSchedulerActor) 
+        {} 
+ 
+        ui64 ResolutionMicroseconds = 1024; 
+        ui64 SpinThreshold = 100; 
+        ui64 ProgressThreshold = 10000; 
+        bool UseSchedulerActor = false; // False is default because tests use scheduler thread 
+        ui64 RelaxedSendPaceEventsPerSecond = 200000; 
+        ui64 RelaxedSendPaceEventsPerCycle = RelaxedSendPaceEventsPerSecond * ResolutionMicroseconds / 1000000; 
+        // For resolution >= 250000 microseconds threshold is SendPace 
+        // For resolution <= 250 microseconds threshold is 20 * SendPace 
+        ui64 RelaxedSendThresholdEventsPerSecond = RelaxedSendPaceEventsPerSecond * 
+            (20 - ((20 - 1) * ClampVal(ResolutionMicroseconds, ui64(250), ui64(250000)) - 250) / (250000 - 250)); 
+        ui64 RelaxedSendThresholdEventsPerCycle = RelaxedSendThresholdEventsPerSecond * ResolutionMicroseconds / 1000000; 
+ 
+        // Optional subsection for scheduler counters (usually subsystem=utils) 
+        NMonitoring::TDynamicCounterPtr MonCounters = nullptr; 
+    }; 
+ 
+    struct TCpuAllocation { 
+        struct TPoolAllocation { 
+            TPoolId PoolId; 
+            TPoolWeight Weight; 
+ 
+            TPoolAllocation(TPoolId poolId = 0, TPoolWeight weight = 0) 
+                : PoolId(poolId) 
+                , Weight(weight) 
+            {} 
+        }; 
+ 
+        TCpuId CpuId; 
+        TVector<TPoolAllocation> AllowedPools; 
+ 
+        TPoolsMask GetPoolsMask() const { 
+            TPoolsMask mask = 0; 
+            for (const auto& pa : AllowedPools) { 
+                if (pa.PoolId < MaxPools) { 
+                    mask &= (1ull << pa.PoolId); 
+                } 
+            } 
+            return mask; 
+        } 
+ 
+        bool HasPool(TPoolId pool) const { 
+            for (const auto& pa : AllowedPools) { 
+                if (pa.PoolId == pool) { 
+                    return true; 
+                } 
+            } 
+            return false; 
+        } 
+    }; 
+ 
+    struct TCpuAllocationConfig { 
+        TVector<TCpuAllocation> Items; 
+ 
+        TCpuAllocationConfig(const TCpuMask& available, const TCpuManagerConfig& cfg) { 
+            for (const TUnitedExecutorPoolConfig& pool : cfg.United) { 
+                Y_VERIFY(pool.PoolId < MaxPools, "wrong PoolId of united executor pool: %s(%d)", 
+                    pool.PoolName.c_str(), (pool.PoolId)); 
+            } 
+            ui32 allocated[MaxPools] = {0}; 
+            for (TCpuId cpu = 0; cpu < available.Size() && Items.size() < cfg.UnitedWorkers.CpuCount; cpu++) { 
+                if (available.IsSet(cpu)) { 
+                    TCpuAllocation item; 
+                    item.CpuId = cpu; 
+                    for (const TUnitedExecutorPoolConfig& pool : cfg.United) { 
+                        if (cfg.UnitedWorkers.Allowed.IsEmpty() || cfg.UnitedWorkers.Allowed.IsSet(cpu)) { 
+                            if (pool.Allowed.IsEmpty() || pool.Allowed.IsSet(cpu)) { 
+                                item.AllowedPools.emplace_back(pool.PoolId, pool.Weight); 
+                                allocated[pool.PoolId]++; 
+                            } 
+                        } 
+                    } 
+                    if (!item.AllowedPools.empty()) { 
+                        Items.push_back(item); 
+                    } 
+                } 
+            } 
+            for (const TUnitedExecutorPoolConfig& pool : cfg.United) { 
+                Y_VERIFY(allocated[pool.PoolId] > 0, "unable to allocate cpu for united executor pool: %s(%d)", 
+                    pool.PoolName.c_str(), (pool.PoolId)); 
+            } 
+        } 
+ 
+        operator bool() const { 
+            return !Items.empty(); 
+        } 
+    }; 
+ 
+} 
diff --git a/library/cpp/actors/core/cpu_manager.cpp b/library/cpp/actors/core/cpu_manager.cpp
index 39089b5d83..26aca975e9 100644
--- a/library/cpp/actors/core/cpu_manager.cpp
+++ b/library/cpp/actors/core/cpu_manager.cpp
@@ -1,108 +1,108 @@
-#include "cpu_manager.h"
-#include "probes.h"
-
-namespace NActors {
-    LWTRACE_USING(ACTORLIB_PROVIDER);
-
-    void TCpuManager::Setup() {
-        TAffinity available;
-        available.Current();
-        TCpuAllocationConfig allocation(available, Config);
-
-        if (allocation) {
-            if (!Balancer) {
-                Balancer.Reset(MakeBalancer(Config.UnitedWorkers.Balancer, Config.United, GetCycleCountFast()));
-            }
-            UnitedWorkers.Reset(new TUnitedWorkers(Config.UnitedWorkers, Config.United, allocation, Balancer.Get()));
-        }
-
-        Executors.Reset(new TAutoPtr<IExecutorPool>[ExecutorPoolCount]);
-
-        for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) {
-            Executors[excIdx].Reset(CreateExecutorPool(excIdx));
-        }
-    }
-
-    void TCpuManager::PrepareStart(TVector<NSchedulerQueue::TReader*>& scheduleReaders, TActorSystem* actorSystem) {
-        if (UnitedWorkers) {
-            UnitedWorkers->Prepare(actorSystem, scheduleReaders);
-        }
-        for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) {
-            NSchedulerQueue::TReader* readers;
-            ui32 readersCount = 0;
-            Executors[excIdx]->Prepare(actorSystem, &readers, &readersCount);
-            for (ui32 i = 0; i != readersCount; ++i, ++readers) {
-                scheduleReaders.push_back(readers);
-            }
-        }
-    }
-
-    void TCpuManager::Start() {
-        if (UnitedWorkers) {
-            UnitedWorkers->Start();
-        }
-        for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) {
-            Executors[excIdx]->Start();
-        }
-    }
-
-    void TCpuManager::PrepareStop() {
-        for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) {
-            Executors[excIdx]->PrepareStop();
-        }
-        if (UnitedWorkers) {
-            UnitedWorkers->PrepareStop();
-        }
-    }
-
-    void TCpuManager::Shutdown() {
-        for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) {
-            Executors[excIdx]->Shutdown();
-        }
-        if (UnitedWorkers) {
-            UnitedWorkers->Shutdown();
-        }
-        for (ui32 round = 0, done = 0; done < ExecutorPoolCount && round < 3; ++round) {
-            done = 0;
-            for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) {
-                if (Executors[excIdx]->Cleanup()) {
-                    ++done;
-                }
-            }
-        }
-    }
-
-    void TCpuManager::Cleanup() {
-        for (ui32 round = 0, done = 0; done < ExecutorPoolCount; ++round) {
-            Y_VERIFY(round < 10, "actorsystem cleanup could not be completed in 10 rounds");
-            done = 0;
-            for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) {
-                if (Executors[excIdx]->Cleanup()) {
-                    ++done;
-                }
-            }
-        }
-        Executors.Destroy();
-        UnitedWorkers.Destroy();
-    }
-
-    IExecutorPool* TCpuManager::CreateExecutorPool(ui32 poolId) {
-        for (TBasicExecutorPoolConfig& cfg : Config.Basic) {
-            if (cfg.PoolId == poolId) {
-                return new TBasicExecutorPool(cfg);
-            }
-        }
-        for (TIOExecutorPoolConfig& cfg : Config.IO) {
-            if (cfg.PoolId == poolId) {
-                return new TIOExecutorPool(cfg);
-            }
-        }
-        for (TUnitedExecutorPoolConfig& cfg : Config.United) {
-            if (cfg.PoolId == poolId) {
-                IExecutorPool* result = new TUnitedExecutorPool(cfg, UnitedWorkers.Get());
-                return result;
-            }
-        }
-        Y_FAIL("missing PoolId: %d", int(poolId));
-    }
-}
+#include "cpu_manager.h" 
+#include "probes.h" 
+ 
+namespace NActors { 
+    LWTRACE_USING(ACTORLIB_PROVIDER); 
+ 
+    void TCpuManager::Setup() { 
+        TAffinity available; 
+        available.Current(); 
+        TCpuAllocationConfig allocation(available, Config); 
+ 
+        if (allocation) { 
+            if (!Balancer) { 
+                Balancer.Reset(MakeBalancer(Config.UnitedWorkers.Balancer, Config.United, GetCycleCountFast())); 
+            } 
+            UnitedWorkers.Reset(new TUnitedWorkers(Config.UnitedWorkers, Config.United, allocation, Balancer.Get())); 
+        } 
+ 
+        Executors.Reset(new TAutoPtr<IExecutorPool>[ExecutorPoolCount]); 
+ 
+        for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) { 
+            Executors[excIdx].Reset(CreateExecutorPool(excIdx)); 
+        } 
+    } 
+ 
+    void TCpuManager::PrepareStart(TVector<NSchedulerQueue::TReader*>& scheduleReaders, TActorSystem* actorSystem) { 
+        if (UnitedWorkers) { 
+            UnitedWorkers->Prepare(actorSystem, scheduleReaders); 
+        } 
+        for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) { 
+            NSchedulerQueue::TReader* readers; 
+            ui32 readersCount = 0; 
+            Executors[excIdx]->Prepare(actorSystem, &readers, &readersCount); 
+            for (ui32 i = 0; i != readersCount; ++i, ++readers) { 
+                scheduleReaders.push_back(readers); 
+            } 
+        } 
+    } 
+ 
+    void TCpuManager::Start() { 
+        if (UnitedWorkers) { 
+            UnitedWorkers->Start(); 
+        } 
+        for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) { 
+            Executors[excIdx]->Start(); 
+        } 
+    } 
+ 
+    void TCpuManager::PrepareStop() { 
+        for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) { 
+            Executors[excIdx]->PrepareStop(); 
+        } 
+        if (UnitedWorkers) { 
+            UnitedWorkers->PrepareStop(); 
+        } 
+    } 
+ 
+    void TCpuManager::Shutdown() { 
+        for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) { 
+            Executors[excIdx]->Shutdown(); 
+        } 
+        if (UnitedWorkers) { 
+            UnitedWorkers->Shutdown(); 
+        } 
+        for (ui32 round = 0, done = 0; done < ExecutorPoolCount && round < 3; ++round) { 
+            done = 0; 
+            for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) { 
+                if (Executors[excIdx]->Cleanup()) { 
+                    ++done; 
+                } 
+            } 
+        } 
+    } 
+ 
+    void TCpuManager::Cleanup() { 
+        for (ui32 round = 0, done = 0; done < ExecutorPoolCount; ++round) { 
+            Y_VERIFY(round < 10, "actorsystem cleanup could not be completed in 10 rounds"); 
+            done = 0; 
+            for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) { 
+                if (Executors[excIdx]->Cleanup()) { 
+                    ++done; 
+                } 
+            } 
+        } 
+        Executors.Destroy(); 
+        UnitedWorkers.Destroy(); 
+    } 
+ 
+    IExecutorPool* TCpuManager::CreateExecutorPool(ui32 poolId) { 
+        for (TBasicExecutorPoolConfig& cfg : Config.Basic) { 
+            if (cfg.PoolId == poolId) { 
+                return new TBasicExecutorPool(cfg); 
+            } 
+        } 
+        for (TIOExecutorPoolConfig& cfg : Config.IO) { 
+            if (cfg.PoolId == poolId) { 
+                return new TIOExecutorPool(cfg); 
+            } 
+        } 
+        for (TUnitedExecutorPoolConfig& cfg : Config.United) { 
+            if (cfg.PoolId == poolId) { 
+                IExecutorPool* result = new TUnitedExecutorPool(cfg, UnitedWorkers.Get()); 
+                return result; 
+            } 
+        } 
+        Y_FAIL("missing PoolId: %d", int(poolId)); 
+    } 
+} 
diff --git a/library/cpp/actors/core/cpu_manager.h b/library/cpp/actors/core/cpu_manager.h
index 454035477b..fc67bfd34c 100644
--- a/library/cpp/actors/core/cpu_manager.h
+++ b/library/cpp/actors/core/cpu_manager.h
@@ -1,57 +1,57 @@
-#pragma once
-
-#include "actorsystem.h"
-#include "executor_pool_basic.h"
-#include "executor_pool_io.h"
-#include "executor_pool_united.h"
-
-namespace NActors {
-    class TCpuManager : public TNonCopyable {
-        const ui32 ExecutorPoolCount;
-        TArrayHolder<TAutoPtr<IExecutorPool>> Executors;
-        THolder<TUnitedWorkers> UnitedWorkers;
-        THolder<IBalancer> Balancer;
-        TCpuManagerConfig Config;
-    public:
-        explicit TCpuManager(THolder<TActorSystemSetup>& setup)
-            : ExecutorPoolCount(setup->GetExecutorsCount())
-            , Balancer(setup->Balancer)
-            , Config(setup->CpuManager)
-        {
-            if (setup->Executors) { // Explicit mode w/o united pools
-                Executors.Reset(setup->Executors.Release());
-                for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) {
-                    IExecutorPool* pool = Executors[excIdx].Get();
-                    Y_VERIFY(dynamic_cast<TUnitedExecutorPool*>(pool) == nullptr,
-                        "united executor pool is prohibited in explicit mode of NActors::TCpuManager");
-                }
-            } else {
-                Setup();
-            }
-        }
-
-        void Setup();
-        void PrepareStart(TVector<NSchedulerQueue::TReader*>& scheduleReaders, TActorSystem* actorSystem);
-        void Start();
-        void PrepareStop();
-        void Shutdown();
-        void Cleanup();
-
-        ui32 GetExecutorsCount() const {
-            return ExecutorPoolCount;
-        }
-
-        IExecutorPool* GetExecutorPool(ui32 poolId) {
-            return Executors[poolId].Get();
-        }
-
-        void GetPoolStats(ui32 poolId, TExecutorPoolStats& poolStats, TVector<TExecutorThreadStats>& statsCopy) const {
-            if (poolId < ExecutorPoolCount) {
-                Executors[poolId]->GetCurrentStats(poolStats, statsCopy);
-            }
-        }
-
-    private:
-        IExecutorPool* CreateExecutorPool(ui32 poolId);
-    };
-}
+#pragma once 
+ 
+#include "actorsystem.h" 
+#include "executor_pool_basic.h" 
+#include "executor_pool_io.h" 
+#include "executor_pool_united.h" 
+ 
+namespace NActors { 
+    class TCpuManager : public TNonCopyable { 
+        const ui32 ExecutorPoolCount; 
+        TArrayHolder<TAutoPtr<IExecutorPool>> Executors; 
+        THolder<TUnitedWorkers> UnitedWorkers; 
+        THolder<IBalancer> Balancer; 
+        TCpuManagerConfig Config; 
+    public: 
+        explicit TCpuManager(THolder<TActorSystemSetup>& setup) 
+            : ExecutorPoolCount(setup->GetExecutorsCount()) 
+            , Balancer(setup->Balancer) 
+            , Config(setup->CpuManager) 
+        { 
+            if (setup->Executors) { // Explicit mode w/o united pools 
+                Executors.Reset(setup->Executors.Release()); 
+                for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) { 
+                    IExecutorPool* pool = Executors[excIdx].Get(); 
+                    Y_VERIFY(dynamic_cast<TUnitedExecutorPool*>(pool) == nullptr, 
+                        "united executor pool is prohibited in explicit mode of NActors::TCpuManager"); 
+                } 
+            } else { 
+                Setup(); 
+            } 
+        } 
+ 
+        void Setup(); 
+        void PrepareStart(TVector<NSchedulerQueue::TReader*>& scheduleReaders, TActorSystem* actorSystem); 
+        void Start(); 
+        void PrepareStop(); 
+        void Shutdown(); 
+        void Cleanup(); 
+ 
+        ui32 GetExecutorsCount() const { 
+            return ExecutorPoolCount; 
+        } 
+ 
+        IExecutorPool* GetExecutorPool(ui32 poolId) { 
+            return Executors[poolId].Get(); 
+        } 
+ 
+        void GetPoolStats(ui32 poolId, TExecutorPoolStats& poolStats, TVector<TExecutorThreadStats>& statsCopy) const { 
+            if (poolId < ExecutorPoolCount) { 
+                Executors[poolId]->GetCurrentStats(poolStats, statsCopy); 
+            } 
+        } 
+ 
+    private: 
+        IExecutorPool* CreateExecutorPool(ui32 poolId); 
+    }; 
+} 
diff --git a/library/cpp/actors/core/cpu_state.h b/library/cpp/actors/core/cpu_state.h
index b8030149a7..34febf7ccf 100644
--- a/library/cpp/actors/core/cpu_state.h
+++ b/library/cpp/actors/core/cpu_state.h
@@ -1,215 +1,215 @@
-#pragma once
-
-#include "defs.h"
-
-#include <library/cpp/actors/util/futex.h>
-
-namespace NActors {
-
-    class alignas(64) TCpuState {
-        // Atomic cachelign-aligned 64-bit state, see description below
-        TAtomic State = 0;
-        char Padding[64 - sizeof(TAtomic)];
-
-        // Bits 0-31: Currently executing pool
-        //  - value less than MaxPools means cpu is executing corresponding pool (fast-worker is executing or waiting for slow-workers)
-        //  - one of Cpu* values in case of idle cpu
-        //  - used as futex by blocked fast-worker
-        static constexpr ui64 CurrentBits = 32;
-        static constexpr ui64 CurrentMask = ui64((1ull << CurrentBits) - 1);
-
-        // Bits 32-63: Assigned pool
-        //  - value is set by balancer
-        //  - NOT used as futex
-        //  - Not balanced
-        static constexpr ui64 AssignedOffs = 32;
-        static constexpr ui64 AssignedMask = ~CurrentMask;
-
-    public:
-        TCpuState() {
-            Y_UNUSED(Padding);
-        }
-
-        void Load(TPoolId& assigned, TPoolId& current) const {
-            TAtomicBase state = AtomicLoad(&State);
-            assigned = (state & AssignedMask) >> AssignedOffs;
-            current = state & CurrentMask;
-        }
-
-        TPoolId CurrentPool() const {
-            return TPoolId(AtomicLoad(&State) & CurrentMask);
-        }
-
-        void SwitchPool(TPoolId pool) {
-            while (true) {
-                TAtomicBase state = AtomicLoad(&State);
-                if (AtomicCas(&State, (state & ~CurrentMask) | pool, state)) {
-                    return;
-                }
-            }
-        }
-
-        TPoolId AssignedPool() const {
-            return TPoolId((AtomicLoad(&State) & AssignedMask) >> AssignedOffs);
-        }
-
-        // Assigns new pool to cpu and wakes it up if cpu is idle
-        void AssignPool(TPoolId pool) {
-            while (true) {
-                TAtomicBase state = AtomicLoad(&State);
-                TPoolId current(state & CurrentMask);
-                if (Y_UNLIKELY(current == CpuStopped)) {
-                    return; // it would be better to shutdown instead of balancing
-                }
-                // Idle cpu must be woken up after balancing to handle pending tokens (if any) in assigned/schedulable pool(s)
-                if (current == CpuSpinning) {
-                    if (AtomicCas(&State, (ui64(pool) << AssignedOffs) | pool, state)) {
-                        return; // successfully woken up
-                    }
-                } else if (current == CpuBlocked) {
-                    if (AtomicCas(&State, (ui64(pool) << AssignedOffs) | pool, state)) {
-                        FutexWake();
-                        return; // successfully woken up
-                    }
-                } else {
-                    if (AtomicCas(&State, (ui64(pool) << AssignedOffs) | (state & ~AssignedMask), state)) {
-                        return; // wakeup is not required
-                    }
-                }
-            }
-        }
-
-        void Stop() {
-            while (true) {
-                TAtomicBase state = AtomicLoad(&State);
-                if (AtomicCas(&State, (state & ~CurrentMask) | CpuStopped, state)) {
-                    FutexWake();
-                    return; // successfully stopped
-                }
-            }
-        }
-
-        // Start waiting, returns false in case of actorsystem shutdown
-        bool StartSpinning() {
-            while (true) {
-                TAtomicBase state = AtomicLoad(&State);
-                TPoolId current(state & CurrentMask);
-                if (Y_UNLIKELY(current == CpuStopped)) {
-                    return false;
-                }
-                Y_VERIFY_DEBUG(current < MaxPools, "unexpected already waiting state of cpu (%d)", (int)current);
-                if (AtomicCas(&State, (state & ~CurrentMask) | CpuSpinning, state)) { // successfully marked as spinning
-                    return true;
-                }
-            }
-        }
-
-        bool StartBlocking() {
-            while (true) {
-                TAtomicBase state = AtomicLoad(&State);
-                TPoolId current(state & CurrentMask);
-                if (current == CpuSpinning) {
-                    if (AtomicCas(&State, (state & ~CurrentMask) | CpuBlocked, state)) {
-                        return false; // successful switch
-                    }
-                } else {
-                    return true; // wakeup
-                }
-            }
-        }
-
-        bool Block(ui64 timeoutNs, TPoolId& result) {
-#ifdef _linux_
-            timespec timeout;
-            timeout.tv_sec = timeoutNs / 1'000'000'000;
-            timeout.tv_nsec = timeoutNs % 1'000'000'000;
-            SysFutex(Futex(), FUTEX_WAIT_PRIVATE, CpuBlocked, &timeout, nullptr, 0);
-#else
-            NanoSleep(timeoutNs); // non-linux wake is not supported, cpu will go idle on wake after blocked state
-#endif
-            TAtomicBase state = AtomicLoad(&State);
-            TPoolId current(state & CurrentMask);
-            if (current == CpuBlocked) {
-                return false; // timeout
-            } else {
-                result = current;
-                return true; // wakeup
-            }
-        }
-
-        enum EWakeResult {
-            Woken, // successfully woken up
-            NotIdle, // cpu is already not idle
-            Forbidden, // cpu is assigned to another pool
-            Stopped, // cpu is shutdown
-        };
-
-        EWakeResult WakeWithoutToken(TPoolId pool) {
-            while (true) {
-                TAtomicBase state = RelaxedLoad(&State);
-                TPoolId current(state & CurrentMask);
-                TPoolId assigned((state & AssignedMask) >> AssignedOffs);
-                if (assigned == CpuShared || assigned == pool) {
-                    if (current == CpuSpinning) {
-                        if (AtomicCas(&State, (state & ~CurrentMask) | pool, state)) {
-                            return Woken;
-                        }
-                    } else if (current == CpuBlocked) {
-                        if (AtomicCas(&State, (state & ~CurrentMask) | pool, state)) {
-                            FutexWake();
-                            return Woken;
-                        }
-                    } else if (current == CpuStopped) {
-                        return Stopped;
-                    } else {
-                        return NotIdle;
-                    }
-                } else {
-                    return Forbidden;
-                }
-            }
-        }
-
-        EWakeResult WakeWithTokenAcquired(TPoolId token) {
-            while (true) {
-                TAtomicBase state = RelaxedLoad(&State);
-                TPoolId current(state & CurrentMask);
-                // NOTE: We ignore assigned value because we already have token, so
-                // NOTE: not assigned pool may be run here. This will be fixed
-                // NOTE: after we finish with current activation
-                if (current == CpuSpinning) {
-                    if (AtomicCas(&State, (state & ~CurrentMask) | token, state)) {
-                        return Woken;
-                    }
-                } else if (current == CpuBlocked) {
-                    if (AtomicCas(&State, (state & ~CurrentMask) | token, state)) {
-                        FutexWake();
-                        return Woken;
-                    }
-                } else if (current == CpuStopped) {
-                    return Stopped;
-                } else {
-                    return NotIdle;
-                }
-            }
-        }
-
-        bool IsPoolReassigned(TPoolId current) const {
-            TAtomicBase state = AtomicLoad(&State);
-            TPoolId assigned((state & AssignedMask) >> AssignedOffs);
-            return assigned != current;
-        }
-
-    private:
-        void* Futex() {
-            return (void*)&State; // little endian assumed
-        }
-
-        void FutexWake() {
-#ifdef _linux_
-            SysFutex(Futex(), FUTEX_WAKE_PRIVATE, 1, nullptr, nullptr, 0);
-#endif
-        }
-    };
-
-}
+#pragma once 
+ 
+#include "defs.h" 
+ 
+#include <library/cpp/actors/util/futex.h> 
+ 
+namespace NActors { 
+ 
+    class alignas(64) TCpuState { 
+        // Atomic cachelign-aligned 64-bit state, see description below 
+        TAtomic State = 0; 
+        char Padding[64 - sizeof(TAtomic)]; 
+ 
+        // Bits 0-31: Currently executing pool 
+        //  - value less than MaxPools means cpu is executing corresponding pool (fast-worker is executing or waiting for slow-workers) 
+        //  - one of Cpu* values in case of idle cpu 
+        //  - used as futex by blocked fast-worker 
+        static constexpr ui64 CurrentBits = 32; 
+        static constexpr ui64 CurrentMask = ui64((1ull << CurrentBits) - 1); 
+ 
+        // Bits 32-63: Assigned pool 
+        //  - value is set by balancer 
+        //  - NOT used as futex 
+        //  - Not balanced 
+        static constexpr ui64 AssignedOffs = 32; 
+        static constexpr ui64 AssignedMask = ~CurrentMask; 
+ 
+    public: 
+        TCpuState() { 
+            Y_UNUSED(Padding); 
+        } 
+ 
+        void Load(TPoolId& assigned, TPoolId& current) const { 
+            TAtomicBase state = AtomicLoad(&State); 
+            assigned = (state & AssignedMask) >> AssignedOffs; 
+            current = state & CurrentMask; 
+        } 
+ 
+        TPoolId CurrentPool() const { 
+            return TPoolId(AtomicLoad(&State) & CurrentMask); 
+        } 
+ 
+        void SwitchPool(TPoolId pool) { 
+            while (true) { 
+                TAtomicBase state = AtomicLoad(&State); 
+                if (AtomicCas(&State, (state & ~CurrentMask) | pool, state)) { 
+                    return; 
+                } 
+            } 
+        } 
+ 
+        TPoolId AssignedPool() const { 
+            return TPoolId((AtomicLoad(&State) & AssignedMask) >> AssignedOffs); 
+        } 
+ 
+        // Assigns new pool to cpu and wakes it up if cpu is idle 
+        void AssignPool(TPoolId pool) { 
+            while (true) { 
+                TAtomicBase state = AtomicLoad(&State); 
+                TPoolId current(state & CurrentMask); 
+                if (Y_UNLIKELY(current == CpuStopped)) { 
+                    return; // it would be better to shutdown instead of balancing 
+                } 
+                // Idle cpu must be woken up after balancing to handle pending tokens (if any) in assigned/schedulable pool(s) 
+                if (current == CpuSpinning) { 
+                    if (AtomicCas(&State, (ui64(pool) << AssignedOffs) | pool, state)) { 
+                        return; // successfully woken up 
+                    } 
+                } else if (current == CpuBlocked) { 
+                    if (AtomicCas(&State, (ui64(pool) << AssignedOffs) | pool, state)) { 
+                        FutexWake(); 
+                        return; // successfully woken up 
+                    } 
+                } else { 
+                    if (AtomicCas(&State, (ui64(pool) << AssignedOffs) | (state & ~AssignedMask), state)) { 
+                        return; // wakeup is not required 
+                    } 
+                } 
+            } 
+        } 
+ 
+        void Stop() { 
+            while (true) { 
+                TAtomicBase state = AtomicLoad(&State); 
+                if (AtomicCas(&State, (state & ~CurrentMask) | CpuStopped, state)) { 
+                    FutexWake(); 
+                    return; // successfully stopped 
+                } 
+            } 
+        } 
+ 
+        // Start waiting, returns false in case of actorsystem shutdown 
+        bool StartSpinning() { 
+            while (true) { 
+                TAtomicBase state = AtomicLoad(&State); 
+                TPoolId current(state & CurrentMask); 
+                if (Y_UNLIKELY(current == CpuStopped)) { 
+                    return false; 
+                } 
+                Y_VERIFY_DEBUG(current < MaxPools, "unexpected already waiting state of cpu (%d)", (int)current); 
+                if (AtomicCas(&State, (state & ~CurrentMask) | CpuSpinning, state)) { // successfully marked as spinning 
+                    return true; 
+                } 
+            } 
+        } 
+ 
+        bool StartBlocking() { 
+            while (true) { 
+                TAtomicBase state = AtomicLoad(&State); 
+                TPoolId current(state & CurrentMask); 
+                if (current == CpuSpinning) { 
+                    if (AtomicCas(&State, (state & ~CurrentMask) | CpuBlocked, state)) { 
+                        return false; // successful switch 
+                    } 
+                } else { 
+                    return true; // wakeup 
+                } 
+            } 
+        } 
+ 
+        bool Block(ui64 timeoutNs, TPoolId& result) { 
+#ifdef _linux_ 
+            timespec timeout; 
+            timeout.tv_sec = timeoutNs / 1'000'000'000; 
+            timeout.tv_nsec = timeoutNs % 1'000'000'000; 
+            SysFutex(Futex(), FUTEX_WAIT_PRIVATE, CpuBlocked, &timeout, nullptr, 0); 
+#else 
+            NanoSleep(timeoutNs); // non-linux wake is not supported, cpu will go idle on wake after blocked state 
+#endif 
+            TAtomicBase state = AtomicLoad(&State); 
+            TPoolId current(state & CurrentMask); 
+            if (current == CpuBlocked) { 
+                return false; // timeout 
+            } else { 
+                result = current; 
+                return true; // wakeup 
+            } 
+        } 
+ 
+        enum EWakeResult { 
+            Woken, // successfully woken up 
+            NotIdle, // cpu is already not idle 
+            Forbidden, // cpu is assigned to another pool 
+            Stopped, // cpu is shutdown 
+        }; 
+ 
+        EWakeResult WakeWithoutToken(TPoolId pool) { 
+            while (true) { 
+                TAtomicBase state = RelaxedLoad(&State); 
+                TPoolId current(state & CurrentMask); 
+                TPoolId assigned((state & AssignedMask) >> AssignedOffs); 
+                if (assigned == CpuShared || assigned == pool) { 
+                    if (current == CpuSpinning) { 
+                        if (AtomicCas(&State, (state & ~CurrentMask) | pool, state)) { 
+                            return Woken; 
+                        } 
+                    } else if (current == CpuBlocked) { 
+                        if (AtomicCas(&State, (state & ~CurrentMask) | pool, state)) { 
+                            FutexWake(); 
+                            return Woken; 
+                        } 
+                    } else if (current == CpuStopped) { 
+                        return Stopped; 
+                    } else { 
+                        return NotIdle; 
+                    } 
+                } else { 
+                    return Forbidden; 
+                } 
+            } 
+        } 
+ 
+        EWakeResult WakeWithTokenAcquired(TPoolId token) { 
+            while (true) { 
+                TAtomicBase state = RelaxedLoad(&State); 
+                TPoolId current(state & CurrentMask); 
+                // NOTE: We ignore assigned value because we already have token, so 
+                // NOTE: not assigned pool may be run here. This will be fixed 
+                // NOTE: after we finish with current activation 
+                if (current == CpuSpinning) { 
+                    if (AtomicCas(&State, (state & ~CurrentMask) | token, state)) { 
+                        return Woken; 
+                    } 
+                } else if (current == CpuBlocked) { 
+                    if (AtomicCas(&State, (state & ~CurrentMask) | token, state)) { 
+                        FutexWake(); 
+                        return Woken; 
+                    } 
+                } else if (current == CpuStopped) { 
+                    return Stopped; 
+                } else { 
+                    return NotIdle; 
+                } 
+            } 
+        } 
+ 
+        bool IsPoolReassigned(TPoolId current) const { 
+            TAtomicBase state = AtomicLoad(&State); 
+            TPoolId assigned((state & AssignedMask) >> AssignedOffs); 
+            return assigned != current; 
+        } 
+ 
+    private: 
+        void* Futex() { 
+            return (void*)&State; // little endian assumed 
+        } 
+ 
+        void FutexWake() { 
+#ifdef _linux_ 
+            SysFutex(Futex(), FUTEX_WAKE_PRIVATE, 1, nullptr, nullptr, 0); 
+#endif 
+        } 
+    }; 
+ 
+} 
diff --git a/library/cpp/actors/core/defs.h b/library/cpp/actors/core/defs.h
index 980b7d767b..d331e98833 100644
--- a/library/cpp/actors/core/defs.h
+++ b/library/cpp/actors/core/defs.h
@@ -13,30 +13,30 @@
 #define ACTORSLIB_COLLECT_EXEC_STATS
 
 namespace NActors {
-    using TPoolId = ui8;
-    using TPoolsMask = ui64;
-    static constexpr TPoolId PoolBits = 6;
-    static constexpr TPoolId MaxPools = (1 << PoolBits) - 1; // maximum amount of pools (poolid=63 is reserved)
-    static constexpr TPoolsMask WaitPoolsFlag = (1ull << MaxPools); // wait-for-slow-workers flag bitmask
-
-    // Special TPoolId values used by TCpuState
-    static constexpr TPoolId CpuSpinning = MaxPools; // fast-worker is actively spinning, no slow-workers
-    static constexpr TPoolId CpuBlocked = MaxPools + 1; // fast-worker is blocked, no slow-workers
-    static constexpr TPoolId CpuStopped = TPoolId(-1); // special value indicating worker should stop
-    static constexpr TPoolId CpuShared = MaxPools; // special value for `assigned` meaning balancer disabled, pool scheduler is used instead
-
-    using TPoolWeight = ui16;
-    static constexpr TPoolWeight MinPoolWeight = 1;
-    static constexpr TPoolWeight DefPoolWeight = 32;
-    static constexpr TPoolWeight MaxPoolWeight = 1024;
-
-    using TWorkerId = ui16;
-    static constexpr TWorkerId WorkerBits = 11;
-    static constexpr TWorkerId MaxWorkers = 1 << WorkerBits;
-
-    using TThreadId = ui64;
-    static constexpr TThreadId UnknownThreadId = ui64(-1);
+    using TPoolId = ui8; 
+    using TPoolsMask = ui64; 
+    static constexpr TPoolId PoolBits = 6; 
+    static constexpr TPoolId MaxPools = (1 << PoolBits) - 1; // maximum amount of pools (poolid=63 is reserved) 
+    static constexpr TPoolsMask WaitPoolsFlag = (1ull << MaxPools); // wait-for-slow-workers flag bitmask 
 
+    // Special TPoolId values used by TCpuState 
+    static constexpr TPoolId CpuSpinning = MaxPools; // fast-worker is actively spinning, no slow-workers 
+    static constexpr TPoolId CpuBlocked = MaxPools + 1; // fast-worker is blocked, no slow-workers 
+    static constexpr TPoolId CpuStopped = TPoolId(-1); // special value indicating worker should stop 
+    static constexpr TPoolId CpuShared = MaxPools; // special value for `assigned` meaning balancer disabled, pool scheduler is used instead 
+ 
+    using TPoolWeight = ui16; 
+    static constexpr TPoolWeight MinPoolWeight = 1; 
+    static constexpr TPoolWeight DefPoolWeight = 32; 
+    static constexpr TPoolWeight MaxPoolWeight = 1024; 
+ 
+    using TWorkerId = ui16; 
+    static constexpr TWorkerId WorkerBits = 11; 
+    static constexpr TWorkerId MaxWorkers = 1 << WorkerBits; 
+ 
+    using TThreadId = ui64; 
+    static constexpr TThreadId UnknownThreadId = ui64(-1); 
+ 
     struct TMailboxType {
         enum EType {
             Inherited = -1, // inherit mailbox from parent
diff --git a/library/cpp/actors/core/event_pb.h b/library/cpp/actors/core/event_pb.h
index d7546b901a..bf9695da95 100644
--- a/library/cpp/actors/core/event_pb.h
+++ b/library/cpp/actors/core/event_pb.h
@@ -291,10 +291,10 @@ namespace NActors {
         }
 
     public:
-        void ReservePayload(size_t size) {
-            Payload.reserve(size);
-        }
-
+        void ReservePayload(size_t size) { 
+            Payload.reserve(size); 
+        } 
+ 
         ui32 AddPayload(TRope&& rope) {
             const ui32 id = Payload.size();
             Payload.push_back(std::move(rope));
diff --git a/library/cpp/actors/core/executor_pool_base.cpp b/library/cpp/actors/core/executor_pool_base.cpp
index c3b9999168..7340458631 100644
--- a/library/cpp/actors/core/executor_pool_base.cpp
+++ b/library/cpp/actors/core/executor_pool_base.cpp
@@ -1,8 +1,8 @@
 #include "executor_pool_base.h"
 #include "executor_thread.h"
 #include "mailbox.h"
-#include "probes.h"
-#include <library/cpp/actors/util/datetime.h>
+#include "probes.h" 
+#include <library/cpp/actors/util/datetime.h> 
 
 namespace NActors {
     LWTRACE_USING(ACTORLIB_PROVIDER);
@@ -11,44 +11,44 @@ namespace NActors {
         actor->SelfActorId = self;
         actor->Registered(sys, owner);
     }
-
-    TExecutorPoolBaseMailboxed::TExecutorPoolBaseMailboxed(ui32 poolId, ui32 maxActivityType)
+ 
+    TExecutorPoolBaseMailboxed::TExecutorPoolBaseMailboxed(ui32 poolId, ui32 maxActivityType) 
         : IExecutorPool(poolId)
         , ActorSystem(nullptr)
         , MailboxTable(new TMailboxTable)
 #ifdef ACTORSLIB_COLLECT_EXEC_STATS
         , Stats(maxActivityType)
 #endif
-    {}
-
-    TExecutorPoolBaseMailboxed::~TExecutorPoolBaseMailboxed() {
-        MailboxTable.Destroy();
+    {} 
+ 
+    TExecutorPoolBaseMailboxed::~TExecutorPoolBaseMailboxed() { 
+        MailboxTable.Destroy(); 
     }
 
-    TExecutorPoolBase::TExecutorPoolBase(ui32 poolId, ui32 threads, TAffinity* affinity, ui32 maxActivityType)
-        : TExecutorPoolBaseMailboxed(poolId, maxActivityType)
-        , PoolThreads(threads)
-        , ThreadsAffinity(affinity)
-    {}
-
+    TExecutorPoolBase::TExecutorPoolBase(ui32 poolId, ui32 threads, TAffinity* affinity, ui32 maxActivityType) 
+        : TExecutorPoolBaseMailboxed(poolId, maxActivityType) 
+        , PoolThreads(threads) 
+        , ThreadsAffinity(affinity) 
+    {} 
+ 
     TExecutorPoolBase::~TExecutorPoolBase() {
         while (Activations.Pop(0))
             ;
     }
 
-    void TExecutorPoolBaseMailboxed::ReclaimMailbox(TMailboxType::EType mailboxType, ui32 hint, TWorkerId workerId, ui64 revolvingWriteCounter) {
-        Y_UNUSED(workerId);
+    void TExecutorPoolBaseMailboxed::ReclaimMailbox(TMailboxType::EType mailboxType, ui32 hint, TWorkerId workerId, ui64 revolvingWriteCounter) { 
+        Y_UNUSED(workerId); 
         MailboxTable->ReclaimMailbox(mailboxType, hint, revolvingWriteCounter);
     }
 
-    ui64 TExecutorPoolBaseMailboxed::AllocateID() {
+    ui64 TExecutorPoolBaseMailboxed::AllocateID() { 
         return ActorSystem->AllocateIDSpace(1);
     }
 
-    bool TExecutorPoolBaseMailboxed::Send(TAutoPtr<IEventHandle>& ev) {
+    bool TExecutorPoolBaseMailboxed::Send(TAutoPtr<IEventHandle>& ev) { 
         Y_VERIFY_DEBUG(ev->GetRecipientRewrite().PoolID() == PoolId);
 #ifdef ACTORSLIB_COLLECT_EXEC_STATS
-        RelaxedStore(&ev->SendTime, (::NHPTimer::STime)GetCycleCountFast());
+        RelaxedStore(&ev->SendTime, (::NHPTimer::STime)GetCycleCountFast()); 
 #endif
         return MailboxTable->SendTo(ev, this);
     }
@@ -57,8 +57,8 @@ namespace NActors {
         ScheduleActivationEx(activation, AtomicIncrement(ActivationsRevolvingCounter));
     }
 
-    TActorId TExecutorPoolBaseMailboxed::Register(IActor* actor, TMailboxType::EType mailboxType, ui64 revolvingWriteCounter, const TActorId& parentId) {
-        NHPTimer::STime hpstart = GetCycleCountFast();
+    TActorId TExecutorPoolBaseMailboxed::Register(IActor* actor, TMailboxType::EType mailboxType, ui64 revolvingWriteCounter, const TActorId& parentId) { 
+        NHPTimer::STime hpstart = GetCycleCountFast(); 
 #ifdef ACTORSLIB_COLLECT_EXEC_STATS
         ui32 at = actor->GetActivityType();
         if (at >= Stats.MaxActivityType())
@@ -72,7 +72,7 @@ namespace NActors {
         TMailboxHeader* mailbox = nullptr;
 
         if (revolvingWriteCounter == 0)
-            revolvingWriteCounter = AtomicIncrement(RegisterRevolvingCounter);
+            revolvingWriteCounter = AtomicIncrement(RegisterRevolvingCounter); 
 
         {
             ui32 hintBackoff = 0;
@@ -105,34 +105,34 @@ namespace NActors {
 
         switch (mailboxType) {
             case TMailboxType::Simple:
-                UnlockFromExecution((TMailboxTable::TSimpleMailbox*)mailbox, this, false, hint, MaxWorkers, ++revolvingWriteCounter);
+                UnlockFromExecution((TMailboxTable::TSimpleMailbox*)mailbox, this, false, hint, MaxWorkers, ++revolvingWriteCounter); 
                 break;
             case TMailboxType::Revolving:
-                UnlockFromExecution((TMailboxTable::TRevolvingMailbox*)mailbox, this, false, hint, MaxWorkers, ++revolvingWriteCounter);
+                UnlockFromExecution((TMailboxTable::TRevolvingMailbox*)mailbox, this, false, hint, MaxWorkers, ++revolvingWriteCounter); 
                 break;
             case TMailboxType::HTSwap:
-                UnlockFromExecution((TMailboxTable::THTSwapMailbox*)mailbox, this, false, hint, MaxWorkers, ++revolvingWriteCounter);
+                UnlockFromExecution((TMailboxTable::THTSwapMailbox*)mailbox, this, false, hint, MaxWorkers, ++revolvingWriteCounter); 
                 break;
             case TMailboxType::ReadAsFilled:
-                UnlockFromExecution((TMailboxTable::TReadAsFilledMailbox*)mailbox, this, false, hint, MaxWorkers, ++revolvingWriteCounter);
+                UnlockFromExecution((TMailboxTable::TReadAsFilledMailbox*)mailbox, this, false, hint, MaxWorkers, ++revolvingWriteCounter); 
                 break;
             case TMailboxType::TinyReadAsFilled:
-                UnlockFromExecution((TMailboxTable::TTinyReadAsFilledMailbox*)mailbox, this, false, hint, MaxWorkers, ++revolvingWriteCounter);
+                UnlockFromExecution((TMailboxTable::TTinyReadAsFilledMailbox*)mailbox, this, false, hint, MaxWorkers, ++revolvingWriteCounter); 
                 break;
             default:
                 Y_FAIL();
         }
 
-        NHPTimer::STime elapsed = GetCycleCountFast() - hpstart;
+        NHPTimer::STime elapsed = GetCycleCountFast() - hpstart; 
         if (elapsed > 1000000) {
             LWPROBE(SlowRegisterNew, PoolId, NHPTimer::GetSeconds(elapsed) * 1000.0);
         }
 
         return actorId;
-    }
-
-    TActorId TExecutorPoolBaseMailboxed::Register(IActor* actor, TMailboxHeader* mailbox, ui32 hint, const TActorId& parentId) {
-        NHPTimer::STime hpstart = GetCycleCountFast();
+    } 
+ 
+    TActorId TExecutorPoolBaseMailboxed::Register(IActor* actor, TMailboxHeader* mailbox, ui32 hint, const TActorId& parentId) { 
+        NHPTimer::STime hpstart = GetCycleCountFast(); 
 #ifdef ACTORSLIB_COLLECT_EXEC_STATS
         ui32 at = actor->GetActivityType();
         if (at >= Stats.MaxActivityType())
@@ -146,19 +146,19 @@ namespace NActors {
 
         const TActorId actorId(ActorSystem->NodeId, PoolId, localActorId, hint);
         DoActorInit(ActorSystem, actor, actorId, parentId);
-        NHPTimer::STime elapsed = GetCycleCountFast() - hpstart;
+        NHPTimer::STime elapsed = GetCycleCountFast() - hpstart; 
         if (elapsed > 1000000) {
             LWPROBE(SlowRegisterAdd, PoolId, NHPTimer::GetSeconds(elapsed) * 1000.0);
         }
 
         return actorId;
-    }
-
+    } 
+ 
     TAffinity* TExecutorPoolBase::Affinity() const {
         return ThreadsAffinity.Get();
     }
 
-    bool TExecutorPoolBaseMailboxed::Cleanup() {
+    bool TExecutorPoolBaseMailboxed::Cleanup() { 
         return MailboxTable->Cleanup();
     }
 
diff --git a/library/cpp/actors/core/executor_pool_base.h b/library/cpp/actors/core/executor_pool_base.h
index c84ce1af77..22247ae1c7 100644
--- a/library/cpp/actors/core/executor_pool_base.h
+++ b/library/cpp/actors/core/executor_pool_base.h
@@ -8,7 +8,7 @@
 #include <library/cpp/actors/util/threadparkpad.h>
 
 namespace NActors {
-    class TExecutorPoolBaseMailboxed: public IExecutorPool {
+    class TExecutorPoolBaseMailboxed: public IExecutorPool { 
     protected:
         TActorSystem* ActorSystem;
         THolder<TMailboxTable> MailboxTable;
@@ -17,33 +17,33 @@ namespace NActors {
         // registrations might be done in threads from other pools)
         TExecutorThreadStats Stats;
 #endif
-        TAtomic RegisterRevolvingCounter = 0;
-        ui64 AllocateID();
+        TAtomic RegisterRevolvingCounter = 0; 
+        ui64 AllocateID(); 
     public:
-        TExecutorPoolBaseMailboxed(ui32 poolId, ui32 maxActivityType);
-        ~TExecutorPoolBaseMailboxed();
-        void ReclaimMailbox(TMailboxType::EType mailboxType, ui32 hint, TWorkerId workerId, ui64 revolvingWriteCounter) override;
+        TExecutorPoolBaseMailboxed(ui32 poolId, ui32 maxActivityType); 
+        ~TExecutorPoolBaseMailboxed(); 
+        void ReclaimMailbox(TMailboxType::EType mailboxType, ui32 hint, TWorkerId workerId, ui64 revolvingWriteCounter) override; 
         bool Send(TAutoPtr<IEventHandle>& ev) override;
         TActorId Register(IActor* actor, TMailboxType::EType mailboxType, ui64 revolvingWriteCounter, const TActorId& parentId) override;
         TActorId Register(IActor* actor, TMailboxHeader* mailbox, ui32 hint, const TActorId& parentId) override;
         bool Cleanup() override;
-    };
+    }; 
 
-    class TExecutorPoolBase: public TExecutorPoolBaseMailboxed {
-    protected:
-        const ui32 PoolThreads;
-        TIntrusivePtr<TAffinity> ThreadsAffinity;
-        TAtomic Semaphore = 0;
-        TUnorderedCache<ui32, 512, 4> Activations;
-        TAtomic ActivationsRevolvingCounter = 0;
-        volatile bool StopFlag = false;
-    public:
-        TExecutorPoolBase(ui32 poolId, ui32 threads, TAffinity* affinity, ui32 maxActivityType);
-        ~TExecutorPoolBase();
-        void ScheduleActivation(ui32 activation) override;
+    class TExecutorPoolBase: public TExecutorPoolBaseMailboxed { 
+    protected: 
+        const ui32 PoolThreads; 
+        TIntrusivePtr<TAffinity> ThreadsAffinity; 
+        TAtomic Semaphore = 0; 
+        TUnorderedCache<ui32, 512, 4> Activations; 
+        TAtomic ActivationsRevolvingCounter = 0; 
+        volatile bool StopFlag = false; 
+    public: 
+        TExecutorPoolBase(ui32 poolId, ui32 threads, TAffinity* affinity, ui32 maxActivityType); 
+        ~TExecutorPoolBase(); 
+        void ScheduleActivation(ui32 activation) override; 
         TAffinity* Affinity() const override;
         ui32 GetThreads() const override;
     };
-
-    void DoActorInit(TActorSystem*, IActor*, const TActorId&, const TActorId&);
+ 
+    void DoActorInit(TActorSystem*, IActor*, const TActorId&, const TActorId&); 
 }
diff --git a/library/cpp/actors/core/executor_pool_basic.cpp b/library/cpp/actors/core/executor_pool_basic.cpp
index 4dce16939a..16541889c6 100644
--- a/library/cpp/actors/core/executor_pool_basic.cpp
+++ b/library/cpp/actors/core/executor_pool_basic.cpp
@@ -1,8 +1,8 @@
 #include "executor_pool_basic.h"
-#include "probes.h"
+#include "probes.h" 
 #include "mailbox.h"
 #include <library/cpp/actors/util/affinity.h>
-#include <library/cpp/actors/util/datetime.h>
+#include <library/cpp/actors/util/datetime.h> 
 
 #ifdef _linux_
 #include <pthread.h>
@@ -12,7 +12,7 @@ namespace NActors {
     LWTRACE_USING(ACTORLIB_PROVIDER);
 
     constexpr TDuration TBasicExecutorPool::DEFAULT_TIME_PER_MAILBOX;
-
+ 
     TBasicExecutorPool::TBasicExecutorPool(
         ui32 poolId,
         ui32 threads,
@@ -23,7 +23,7 @@ namespace NActors {
         ui32 eventsPerMailbox,
         int realtimePriority,
         ui32 maxActivityType)
-        : TExecutorPoolBase(poolId, threads, affinity, maxActivityType)
+        : TExecutorPoolBase(poolId, threads, affinity, maxActivityType) 
         , SpinThreshold(spinThreshold)
         , SpinThresholdCycles(spinThreshold * NHPTimer::GetCyclesPerSecond() * 0.000001) // convert microseconds to cycles
         , Threads(new TThreadCtx[threads])
@@ -38,45 +38,45 @@ namespace NActors {
     {
     }
 
-    TBasicExecutorPool::TBasicExecutorPool(const TBasicExecutorPoolConfig& cfg)
-        : TBasicExecutorPool(
-            cfg.PoolId,
-            cfg.Threads,
-            cfg.SpinThreshold,
-            cfg.PoolName,
-            new TAffinity(cfg.Affinity),
-            cfg.TimePerMailbox,
-            cfg.EventsPerMailbox,
-            cfg.RealtimePriority,
-            cfg.MaxActivityType
-        )
-    {}
-
+    TBasicExecutorPool::TBasicExecutorPool(const TBasicExecutorPoolConfig& cfg) 
+        : TBasicExecutorPool( 
+            cfg.PoolId, 
+            cfg.Threads, 
+            cfg.SpinThreshold, 
+            cfg.PoolName, 
+            new TAffinity(cfg.Affinity), 
+            cfg.TimePerMailbox, 
+            cfg.EventsPerMailbox, 
+            cfg.RealtimePriority, 
+            cfg.MaxActivityType 
+        ) 
+    {} 
+ 
     TBasicExecutorPool::~TBasicExecutorPool() {
         Threads.Destroy();
     }
 
-    ui32 TBasicExecutorPool::GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) {
-        ui32 workerId = wctx.WorkerId;
-        Y_VERIFY_DEBUG(workerId < PoolThreads);
+    ui32 TBasicExecutorPool::GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) { 
+        ui32 workerId = wctx.WorkerId; 
+        Y_VERIFY_DEBUG(workerId < PoolThreads); 
 
         NHPTimer::STime elapsed = 0;
         NHPTimer::STime parked = 0;
         NHPTimer::STime blocked = 0;
-        NHPTimer::STime hpstart = GetCycleCountFast();
+        NHPTimer::STime hpstart = GetCycleCountFast(); 
         NHPTimer::STime hpnow;
 
-        TThreadCtx& threadCtx = Threads[workerId];
+        TThreadCtx& threadCtx = Threads[workerId]; 
         AtomicSet(threadCtx.WaitingFlag, TThreadCtx::WS_NONE);
 
         if (Y_UNLIKELY(AtomicGet(threadCtx.BlockedFlag) != TThreadCtx::BS_NONE)) {
             do {
                 if (AtomicCas(&threadCtx.BlockedFlag, TThreadCtx::BS_BLOCKED, TThreadCtx::BS_BLOCKING)) {
-                    hpnow = GetCycleCountFast();
+                    hpnow = GetCycleCountFast(); 
                     elapsed += hpnow - hpstart;
                     if (threadCtx.BlockedPad.Park()) // interrupted
                         return 0;
-                    hpstart = GetCycleCountFast();
+                    hpstart = GetCycleCountFast(); 
                     blocked += hpstart - hpnow;
                 }
             } while (AtomicGet(threadCtx.BlockedFlag) != TThreadCtx::BS_NONE && !AtomicLoad(&StopFlag));
@@ -94,7 +94,7 @@ namespace NActors {
                 // counter just turned into a duration and we should store that
                 // duration. Otherwise another thread raced with us and
                 // subtracted some other timestamp t2.
-                const i64 t = GetCycleCountFast();
+                const i64 t = GetCycleCountFast(); 
                 const i64 x = AtomicGetAndAdd(MaxUtilizationCounter, t);
                 if (x < 0 && x + t > 0)
                     AtomicStore(&MaxUtilizationAccumulator, x + t);
@@ -106,14 +106,14 @@ namespace NActors {
             if (SpinThreshold > 0) {
                 // spin configured period
                 AtomicSet(threadCtx.WaitingFlag, TThreadCtx::WS_ACTIVE);
-                ui64 start = GetCycleCountFast();
+                ui64 start = GetCycleCountFast(); 
                 bool doSpin = true;
                 while (true) {
                     for (ui32 j = 0; doSpin && j < 12; ++j) {
-                        if (GetCycleCountFast() >= (start + SpinThresholdCycles)) {
-                            doSpin = false;
-                            break;
-                        }
+                        if (GetCycleCountFast() >= (start + SpinThresholdCycles)) { 
+                            doSpin = false; 
+                            break; 
+                        } 
                         for (ui32 i = 0; i < 12; ++i) {
                             if (AtomicLoad(&threadCtx.WaitingFlag) == TThreadCtx::WS_ACTIVE) {
                                 SpinLockPause();
@@ -122,7 +122,7 @@ namespace NActors {
                                 break;
                             }
                         }
-                    }
+                    } 
                     if (!doSpin) {
                         break;
                     }
@@ -134,23 +134,23 @@ namespace NActors {
                 if (AtomicLoad(&threadCtx.WaitingFlag) == TThreadCtx::WS_ACTIVE) {
                     if (AtomicCas(&threadCtx.WaitingFlag, TThreadCtx::WS_BLOCKED, TThreadCtx::WS_ACTIVE)) {
                         do {
-                            hpnow = GetCycleCountFast();
+                            hpnow = GetCycleCountFast(); 
                             elapsed += hpnow - hpstart;
                             if (threadCtx.Pad.Park()) // interrupted
                                 return 0;
-                            hpstart = GetCycleCountFast();
+                            hpstart = GetCycleCountFast(); 
                             parked += hpstart - hpnow;
                         } while (AtomicLoad(&threadCtx.WaitingFlag) == TThreadCtx::WS_BLOCKED);
                     }
-                }
+                } 
             } else {
                 AtomicSet(threadCtx.WaitingFlag, TThreadCtx::WS_BLOCKED);
                 do {
-                    hpnow = GetCycleCountFast();
+                    hpnow = GetCycleCountFast(); 
                     elapsed += hpnow - hpstart;
                     if (threadCtx.Pad.Park()) // interrupted
                         return 0;
-                    hpstart = GetCycleCountFast();
+                    hpstart = GetCycleCountFast(); 
                     parked += hpstart - hpnow;
                 } while (AtomicLoad(&threadCtx.WaitingFlag) == TThreadCtx::WS_BLOCKED);
             }
@@ -170,7 +170,7 @@ namespace NActors {
                 // arbitrary order, which would cause counter to oscillate
                 // around zero. When it crosses zero is a good indication of a
                 // correct value.
-                const i64 t = GetCycleCountFast();
+                const i64 t = GetCycleCountFast(); 
                 const i64 x = AtomicGetAndAdd(MaxUtilizationCounter, -t);
                 if (x > 0 && x - t < 0)
                     AtomicStore(&MaxUtilizationAccumulator, x);
@@ -183,17 +183,17 @@ namespace NActors {
         // ok, has work suggested, must dequeue
         while (!RelaxedLoad(&StopFlag)) {
             if (const ui32 activation = Activations.Pop(++revolvingCounter)) {
-                hpnow = GetCycleCountFast();
+                hpnow = GetCycleCountFast(); 
                 elapsed += hpnow - hpstart;
-                wctx.AddElapsedCycles(IActor::ACTOR_SYSTEM, elapsed);
+                wctx.AddElapsedCycles(IActor::ACTOR_SYSTEM, elapsed); 
                 if (parked > 0) {
-                    wctx.AddParkedCycles(parked);
+                    wctx.AddParkedCycles(parked); 
                 }
                 if (blocked > 0) {
-                    wctx.AddBlockedCycles(blocked);
+                    wctx.AddBlockedCycles(blocked); 
                 }
                 return activation;
-            }
+            } 
             SpinLockPause();
         }
 
@@ -201,7 +201,7 @@ namespace NActors {
         return 0;
     }
 
-    inline void TBasicExecutorPool::WakeUpLoop() {
+    inline void TBasicExecutorPool::WakeUpLoop() { 
         for (ui32 i = 0;;) {
             TThreadCtx& threadCtx = Threads[i % PoolThreads];
             switch (AtomicLoad(&threadCtx.WaitingFlag)) {
@@ -230,7 +230,7 @@ namespace NActors {
         Activations.Push(activation, revolvingCounter);
         const TAtomic x = AtomicIncrement(Semaphore);
         if (x <= 0) { // we must find someone to wake-up
-            WakeUpLoop();
+            WakeUpLoop(); 
         }
     }
 
@@ -247,7 +247,7 @@ namespace NActors {
         }
     }
 
-    void TBasicExecutorPool::Prepare(TActorSystem* actorSystem, NSchedulerQueue::TReader** scheduleReaders, ui32* scheduleSz) {
+    void TBasicExecutorPool::Prepare(TActorSystem* actorSystem, NSchedulerQueue::TReader** scheduleReaders, ui32* scheduleSz) { 
         TAffinityGuard affinityGuard(Affinity());
 
         ActorSystem = actorSystem;
@@ -259,7 +259,7 @@ namespace NActors {
             Threads[i].Thread.Reset(
                 new TExecutorThread(
                     i,
-                    0, // CpuId is not used in BASIC pool
+                    0, // CpuId is not used in BASIC pool 
                     actorSystem,
                     this,
                     MailboxTable.Get(),
@@ -277,7 +277,7 @@ namespace NActors {
         TAffinityGuard affinityGuard(Affinity());
 
         ThreadUtilization = 0;
-        AtomicAdd(MaxUtilizationCounter, -(i64)GetCycleCountFast());
+        AtomicAdd(MaxUtilizationCounter, -(i64)GetCycleCountFast()); 
 
         for (ui32 i = 0; i != PoolThreads; ++i) {
             Threads[i].Thread->Start();
@@ -297,27 +297,27 @@ namespace NActors {
             Threads[i].Thread->Join();
     }
 
-    void TBasicExecutorPool::Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) {
-        Y_VERIFY_DEBUG(workerId < PoolThreads);
+    void TBasicExecutorPool::Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) { 
+        Y_VERIFY_DEBUG(workerId < PoolThreads); 
 
-        Schedule(deadline - ActorSystem->Timestamp(), ev, cookie, workerId);
+        Schedule(deadline - ActorSystem->Timestamp(), ev, cookie, workerId); 
     }
 
-    void TBasicExecutorPool::Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) {
-        Y_VERIFY_DEBUG(workerId < PoolThreads);
+    void TBasicExecutorPool::Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) { 
+        Y_VERIFY_DEBUG(workerId < PoolThreads); 
 
         const auto current = ActorSystem->Monotonic();
         if (deadline < current)
             deadline = current;
 
-        ScheduleWriters[workerId].Push(deadline.MicroSeconds(), ev.Release(), cookie);
+        ScheduleWriters[workerId].Push(deadline.MicroSeconds(), ev.Release(), cookie); 
     }
 
-    void TBasicExecutorPool::Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) {
-        Y_VERIFY_DEBUG(workerId < PoolThreads);
+    void TBasicExecutorPool::Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) { 
+        Y_VERIFY_DEBUG(workerId < PoolThreads); 
 
         const auto deadline = ActorSystem->Monotonic() + delta;
-        ScheduleWriters[workerId].Push(deadline.MicroSeconds(), ev.Release(), cookie);
+        ScheduleWriters[workerId].Push(deadline.MicroSeconds(), ev.Release(), cookie); 
     }
 
     void TBasicExecutorPool::SetRealTimeMode() const {
@@ -421,7 +421,7 @@ namespace NActors {
                                     ; // other thread woke this sleeping thread
                             }
                             // if thread has already been awakened then we must awaken the other
-                            WakeUpLoop();
+                            WakeUpLoop(); 
                         }
                     }
                 }
diff --git a/library/cpp/actors/core/executor_pool_basic.h b/library/cpp/actors/core/executor_pool_basic.h
index 023190f7fe..83224ed9d3 100644
--- a/library/cpp/actors/core/executor_pool_basic.h
+++ b/library/cpp/actors/core/executor_pool_basic.h
@@ -67,8 +67,8 @@ namespace NActors {
         TMutex ChangeThreadsLock;
 
     public:
-        static constexpr TDuration DEFAULT_TIME_PER_MAILBOX = TBasicExecutorPoolConfig::DEFAULT_TIME_PER_MAILBOX;
-        static constexpr ui32 DEFAULT_EVENTS_PER_MAILBOX = TBasicExecutorPoolConfig::DEFAULT_EVENTS_PER_MAILBOX;
+        static constexpr TDuration DEFAULT_TIME_PER_MAILBOX = TBasicExecutorPoolConfig::DEFAULT_TIME_PER_MAILBOX; 
+        static constexpr ui32 DEFAULT_EVENTS_PER_MAILBOX = TBasicExecutorPoolConfig::DEFAULT_EVENTS_PER_MAILBOX; 
 
         TBasicExecutorPool(ui32 poolId,
                            ui32 threads,
@@ -79,18 +79,18 @@ namespace NActors {
                            ui32 eventsPerMailbox = DEFAULT_EVENTS_PER_MAILBOX,
                            int realtimePriority = 0,
                            ui32 maxActivityType = 1);
-        explicit TBasicExecutorPool(const TBasicExecutorPoolConfig& cfg);
+        explicit TBasicExecutorPool(const TBasicExecutorPoolConfig& cfg); 
         ~TBasicExecutorPool();
 
-        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingReadCounter) override;
+        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingReadCounter) override; 
 
-        void Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override;
-        void Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override;
-        void Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override;
+        void Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override; 
+        void Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override; 
+        void Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override; 
 
         void ScheduleActivationEx(ui32 activation, ui64 revolvingWriteCounter) override;
 
-        void Prepare(TActorSystem* actorSystem, NSchedulerQueue::TReader** scheduleReaders, ui32* scheduleSz) override;
+        void Prepare(TActorSystem* actorSystem, NSchedulerQueue::TReader** scheduleReaders, ui32* scheduleSz) override; 
         void Start() override;
         void PrepareStop() override;
         void Shutdown() override;
@@ -106,6 +106,6 @@ namespace NActors {
         void SetThreadCount(ui32 threads);
 
     private:
-        void WakeUpLoop();
+        void WakeUpLoop(); 
     };
 }
diff --git a/library/cpp/actors/core/executor_pool_basic_ut.cpp b/library/cpp/actors/core/executor_pool_basic_ut.cpp
index 76dff693af..be87e5df33 100644
--- a/library/cpp/actors/core/executor_pool_basic_ut.cpp
+++ b/library/cpp/actors/core/executor_pool_basic_ut.cpp
@@ -377,59 +377,59 @@ Y_UNIT_TEST_SUITE(BasicExecutorPool) {
             Sleep(TDuration::MilliSeconds(1));
         }
     }
-
-    Y_UNIT_TEST(CheckStats) {
-        const size_t size = 4;
-        const size_t msgCount = 1e4;
-        TBasicExecutorPool* executorPool = new TBasicExecutorPool(0, size, 50);
-
-        auto setup = GetActorSystemSetup(executorPool);
-        TActorSystem actorSystem(setup);
-        actorSystem.Start();
-
-        auto begin = TInstant::Now();
-
-        auto actor = new TTestSenderActor();
-        auto actorId = actorSystem.Register(actor);
-        actor->Start(actor->SelfId(), msgCount);
-        actorSystem.Send(actorId, new TEvMsg());
-
-        while (actor->GetCounter()) {
-            auto now = TInstant::Now();
-            UNIT_ASSERT_C(now - begin < TDuration::Seconds(5), "Counter is " << actor->GetCounter());
-
-            Sleep(TDuration::MilliSeconds(1));
-        }
-
-        TVector<TExecutorThreadStats> stats;
-        TExecutorPoolStats poolStats;
-        actorSystem.GetPoolStats(0, poolStats, stats);
-        // Sum all per-thread counters into the 0th element
-        for (ui32 idx = 1; idx < stats.size(); ++idx) {
-            stats[0].Aggregate(stats[idx]);
-        }
-
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].SentEvents, msgCount - 1);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].ReceivedEvents, msgCount);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].PreemptedEvents, 0);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].NonDeliveredEvents, 0);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].EmptyMailboxActivation, 0);
-        //UNIT_ASSERT_VALUES_EQUAL(stats[0].CpuNs, 0); // depends on total duration of test, so undefined
-        UNIT_ASSERT(stats[0].ElapsedTicks > 0);
-        UNIT_ASSERT(stats[0].ParkedTicks > 0);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].BlockedTicks, 0);
-        UNIT_ASSERT(stats[0].ActivationTimeHistogram.TotalSamples >= msgCount / TBasicExecutorPoolConfig::DEFAULT_EVENTS_PER_MAILBOX);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].EventDeliveryTimeHistogram.TotalSamples, msgCount);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].EventProcessingCountHistogram.TotalSamples, msgCount);
-        UNIT_ASSERT(stats[0].EventProcessingTimeHistogram.TotalSamples > 0);
-        UNIT_ASSERT(stats[0].ElapsedTicksByActivity[0] > 0);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].ReceivedEventsByActivity[0], msgCount);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].ActorsAliveByActivity[0], 1);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].ScheduledEventsByActivity[0], 0);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolActorRegistrations, 1);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolDestroyedActors, 0);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolAllocatedMailboxes, 4095); // one line
-        UNIT_ASSERT(stats[0].MailboxPushedOutByTime + stats[0].MailboxPushedOutByEventCount >= msgCount / TBasicExecutorPoolConfig::DEFAULT_EVENTS_PER_MAILBOX);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].MailboxPushedOutBySoftPreemption, 0);
-    }
+ 
+    Y_UNIT_TEST(CheckStats) { 
+        const size_t size = 4; 
+        const size_t msgCount = 1e4; 
+        TBasicExecutorPool* executorPool = new TBasicExecutorPool(0, size, 50); 
+ 
+        auto setup = GetActorSystemSetup(executorPool); 
+        TActorSystem actorSystem(setup); 
+        actorSystem.Start(); 
+ 
+        auto begin = TInstant::Now(); 
+ 
+        auto actor = new TTestSenderActor(); 
+        auto actorId = actorSystem.Register(actor); 
+        actor->Start(actor->SelfId(), msgCount); 
+        actorSystem.Send(actorId, new TEvMsg()); 
+ 
+        while (actor->GetCounter()) { 
+            auto now = TInstant::Now(); 
+            UNIT_ASSERT_C(now - begin < TDuration::Seconds(5), "Counter is " << actor->GetCounter()); 
+ 
+            Sleep(TDuration::MilliSeconds(1)); 
+        } 
+ 
+        TVector<TExecutorThreadStats> stats; 
+        TExecutorPoolStats poolStats; 
+        actorSystem.GetPoolStats(0, poolStats, stats); 
+        // Sum all per-thread counters into the 0th element 
+        for (ui32 idx = 1; idx < stats.size(); ++idx) { 
+            stats[0].Aggregate(stats[idx]); 
+        } 
+ 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].SentEvents, msgCount - 1); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].ReceivedEvents, msgCount); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].PreemptedEvents, 0); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].NonDeliveredEvents, 0); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].EmptyMailboxActivation, 0); 
+        //UNIT_ASSERT_VALUES_EQUAL(stats[0].CpuNs, 0); // depends on total duration of test, so undefined 
+        UNIT_ASSERT(stats[0].ElapsedTicks > 0); 
+        UNIT_ASSERT(stats[0].ParkedTicks > 0); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].BlockedTicks, 0); 
+        UNIT_ASSERT(stats[0].ActivationTimeHistogram.TotalSamples >= msgCount / TBasicExecutorPoolConfig::DEFAULT_EVENTS_PER_MAILBOX); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].EventDeliveryTimeHistogram.TotalSamples, msgCount); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].EventProcessingCountHistogram.TotalSamples, msgCount); 
+        UNIT_ASSERT(stats[0].EventProcessingTimeHistogram.TotalSamples > 0); 
+        UNIT_ASSERT(stats[0].ElapsedTicksByActivity[0] > 0); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].ReceivedEventsByActivity[0], msgCount); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].ActorsAliveByActivity[0], 1); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].ScheduledEventsByActivity[0], 0); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolActorRegistrations, 1); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolDestroyedActors, 0); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolAllocatedMailboxes, 4095); // one line 
+        UNIT_ASSERT(stats[0].MailboxPushedOutByTime + stats[0].MailboxPushedOutByEventCount >= msgCount / TBasicExecutorPoolConfig::DEFAULT_EVENTS_PER_MAILBOX); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].MailboxPushedOutBySoftPreemption, 0); 
+    } 
 }
diff --git a/library/cpp/actors/core/executor_pool_io.cpp b/library/cpp/actors/core/executor_pool_io.cpp
index fb557ae6b0..29e64220db 100644
--- a/library/cpp/actors/core/executor_pool_io.cpp
+++ b/library/cpp/actors/core/executor_pool_io.cpp
@@ -1,59 +1,59 @@
 #include "executor_pool_io.h"
 #include "mailbox.h"
 #include <library/cpp/actors/util/affinity.h>
-#include <library/cpp/actors/util/datetime.h>
+#include <library/cpp/actors/util/datetime.h> 
 
 namespace NActors {
-    TIOExecutorPool::TIOExecutorPool(ui32 poolId, ui32 threads, const TString& poolName, TAffinity* affinity, ui32 maxActivityType)
-        : TExecutorPoolBase(poolId, threads, affinity, maxActivityType)
+    TIOExecutorPool::TIOExecutorPool(ui32 poolId, ui32 threads, const TString& poolName, TAffinity* affinity, ui32 maxActivityType) 
+        : TExecutorPoolBase(poolId, threads, affinity, maxActivityType) 
         , Threads(new TThreadCtx[threads])
         , PoolName(poolName)
-    {}
-
-    TIOExecutorPool::TIOExecutorPool(const TIOExecutorPoolConfig& cfg)
-        : TIOExecutorPool(
-            cfg.PoolId,
-            cfg.Threads,
-            cfg.PoolName,
-            new TAffinity(cfg.Affinity),
-            cfg.MaxActivityType
-        )
-    {}
-
+    {} 
+
+    TIOExecutorPool::TIOExecutorPool(const TIOExecutorPoolConfig& cfg) 
+        : TIOExecutorPool( 
+            cfg.PoolId, 
+            cfg.Threads, 
+            cfg.PoolName, 
+            new TAffinity(cfg.Affinity), 
+            cfg.MaxActivityType 
+        ) 
+    {} 
+ 
     TIOExecutorPool::~TIOExecutorPool() {
         Threads.Destroy();
         while (ThreadQueue.Pop(0))
             ;
     }
 
-    ui32 TIOExecutorPool::GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) {
-        ui32 workerId = wctx.WorkerId;
-        Y_VERIFY_DEBUG(workerId < PoolThreads);
+    ui32 TIOExecutorPool::GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) { 
+        ui32 workerId = wctx.WorkerId; 
+        Y_VERIFY_DEBUG(workerId < PoolThreads); 
 
         NHPTimer::STime elapsed = 0;
         NHPTimer::STime parked = 0;
-        NHPTimer::STime hpstart = GetCycleCountFast();
+        NHPTimer::STime hpstart = GetCycleCountFast(); 
         NHPTimer::STime hpnow;
 
         const TAtomic x = AtomicDecrement(Semaphore);
         if (x < 0) {
-            TThreadCtx& threadCtx = Threads[workerId];
-            ThreadQueue.Push(workerId + 1, revolvingCounter);
-            hpnow = GetCycleCountFast();
+            TThreadCtx& threadCtx = Threads[workerId]; 
+            ThreadQueue.Push(workerId + 1, revolvingCounter); 
+            hpnow = GetCycleCountFast(); 
             elapsed += hpnow - hpstart;
             if (threadCtx.Pad.Park())
                 return 0;
-            hpstart = GetCycleCountFast();
+            hpstart = GetCycleCountFast(); 
             parked += hpstart - hpnow;
         }
 
         while (!RelaxedLoad(&StopFlag)) {
             if (const ui32 activation = Activations.Pop(++revolvingCounter)) {
-                hpnow = GetCycleCountFast();
+                hpnow = GetCycleCountFast(); 
                 elapsed += hpnow - hpstart;
-                wctx.AddElapsedCycles(IActor::ACTOR_SYSTEM, elapsed);
+                wctx.AddElapsedCycles(IActor::ACTOR_SYSTEM, elapsed); 
                 if (parked > 0) {
-                    wctx.AddParkedCycles(parked);
+                    wctx.AddParkedCycles(parked); 
                 }
                 return activation;
             }
@@ -63,12 +63,12 @@ namespace NActors {
         return 0;
     }
 
-    void TIOExecutorPool::Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) {
-        Schedule(deadline - ActorSystem->Timestamp(), ev, cookie, workerId);
+    void TIOExecutorPool::Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) { 
+        Schedule(deadline - ActorSystem->Timestamp(), ev, cookie, workerId); 
     }
 
-    void TIOExecutorPool::Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) {
-        Y_UNUSED(workerId);
+    void TIOExecutorPool::Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) { 
+        Y_UNUSED(workerId); 
 
         const auto current = ActorSystem->Monotonic();
         if (deadline < current)
@@ -78,8 +78,8 @@ namespace NActors {
         ScheduleQueue->Writer.Push(deadline.MicroSeconds(), ev.Release(), cookie);
     }
 
-    void TIOExecutorPool::Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) {
-        Y_UNUSED(workerId);
+    void TIOExecutorPool::Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) { 
+        Y_UNUSED(workerId); 
         const auto deadline = ActorSystem->Monotonic() + delta;
 
         TTicketLock::TGuard guard(&ScheduleLock);
@@ -101,7 +101,7 @@ namespace NActors {
         }
     }
 
-    void TIOExecutorPool::Prepare(TActorSystem* actorSystem, NSchedulerQueue::TReader** scheduleReaders, ui32* scheduleSz) {
+    void TIOExecutorPool::Prepare(TActorSystem* actorSystem, NSchedulerQueue::TReader** scheduleReaders, ui32* scheduleSz) { 
         TAffinityGuard affinityGuard(Affinity());
 
         ActorSystem = actorSystem;
@@ -109,7 +109,7 @@ namespace NActors {
         ScheduleQueue.Reset(new NSchedulerQueue::TQueueType());
 
         for (ui32 i = 0; i != PoolThreads; ++i) {
-            Threads[i].Thread.Reset(new TExecutorThread(i, 0, actorSystem, this, MailboxTable.Get(), PoolName));
+            Threads[i].Thread.Reset(new TExecutorThread(i, 0, actorSystem, this, MailboxTable.Get(), PoolName)); 
         }
 
         *scheduleReaders = &ScheduleQueue->Reader;
diff --git a/library/cpp/actors/core/executor_pool_io.h b/library/cpp/actors/core/executor_pool_io.h
index e576d642a1..00de73bacd 100644
--- a/library/cpp/actors/core/executor_pool_io.h
+++ b/library/cpp/actors/core/executor_pool_io.h
@@ -25,20 +25,20 @@ namespace NActors {
         const TString PoolName;
 
     public:
-        TIOExecutorPool(ui32 poolId, ui32 threads, const TString& poolName = "", TAffinity* affinity = nullptr,
+        TIOExecutorPool(ui32 poolId, ui32 threads, const TString& poolName = "", TAffinity* affinity = nullptr, 
                         ui32 maxActivityType = 1);
-        explicit TIOExecutorPool(const TIOExecutorPoolConfig& cfg);
+        explicit TIOExecutorPool(const TIOExecutorPoolConfig& cfg); 
         ~TIOExecutorPool();
 
-        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) override;
+        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) override; 
 
-        void Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override;
-        void Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override;
-        void Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override;
+        void Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override; 
+        void Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override; 
+        void Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override; 
 
         void ScheduleActivationEx(ui32 activation, ui64 revolvingWriteCounter) override;
 
-        void Prepare(TActorSystem* actorSystem, NSchedulerQueue::TReader** scheduleReaders, ui32* scheduleSz) override;
+        void Prepare(TActorSystem* actorSystem, NSchedulerQueue::TReader** scheduleReaders, ui32* scheduleSz) override; 
         void Start() override;
         void PrepareStop() override;
         void Shutdown() override;
diff --git a/library/cpp/actors/core/executor_pool_united.cpp b/library/cpp/actors/core/executor_pool_united.cpp
index dac6245635..d932714aa9 100644
--- a/library/cpp/actors/core/executor_pool_united.cpp
+++ b/library/cpp/actors/core/executor_pool_united.cpp
@@ -1,1428 +1,1428 @@
-#include "executor_pool_united.h"
-
-#include "balancer.h"
-#include "cpu_state.h"
-#include "executor_thread.h"
-#include "probes.h"
+#include "executor_pool_united.h" 
+ 
+#include "balancer.h" 
+#include "cpu_state.h" 
+#include "executor_thread.h" 
+#include "probes.h" 
 #include "mailbox.h"
-#include "scheduler_queue.h"
+#include "scheduler_queue.h" 
 #include <library/cpp/actors/util/affinity.h>
-#include <library/cpp/actors/util/datetime.h>
-#include <library/cpp/actors/util/futex.h>
-#include <library/cpp/actors/util/intrinsics.h>
-#include <library/cpp/actors/util/timerfd.h>
-
-#include <util/system/datetime.h>
-#include <util/system/hp_timer.h>
+#include <library/cpp/actors/util/datetime.h> 
+#include <library/cpp/actors/util/futex.h> 
+#include <library/cpp/actors/util/intrinsics.h> 
+#include <library/cpp/actors/util/timerfd.h> 
 
-#include <algorithm>
+#include <util/system/datetime.h> 
+#include <util/system/hp_timer.h> 
 
+#include <algorithm> 
+ 
 namespace NActors {
     LWTRACE_USING(ACTORLIB_PROVIDER);
 
-    struct TUnitedWorkers::TWorker: public TNonCopyable {
-        TAutoPtr<TExecutorThread> Thread;
-        volatile TThreadId ThreadId = UnknownThreadId;
-        NSchedulerQueue::TQueueType SchedulerQueue;
-    };
-
-    struct TUnitedWorkers::TPool: public TNonCopyable {
-        TAtomic Waiters = 0; // Number of idle cpus, waiting for activations in this pool
-        char Padding[64 - sizeof(TAtomic)];
-
-        TUnorderedCache<ui32, 512, 4> Activations; // MPMC-queue for mailbox activations
-        TAtomic Active = 0; // Number of mailboxes ready for execution or currently executing
-        TAtomic Tokens = 0; // Pending tokens (token is required for worker to start execution, guarantees concurrency limit and activation availability)
-        volatile bool StopFlag = false;
-
-        // Configuration
-        TPoolId PoolId;
-        TAtomicBase Concurrency; // Max concurrent workers running this pool
-        IExecutorPool* ExecutorPool;
-        TMailboxTable* MailboxTable;
-        ui64 TimePerMailboxTs;
-        ui32 EventsPerMailbox;
-
-        // Cpus this pool is allowed to run on
-        // Cpus are specified in wake order
-        TStackVec<TCpu*, 15> WakeOrderCpus;
-
-        ~TPool() {
-            while (Activations.Pop(0)) {}
-        }
-
-        void Stop() {
-            AtomicStore(&StopFlag, true);
-        }
-
-        bool IsUnited() const {
-            return WakeOrderCpus.size();
-        }
-
-        // Add activation of newly scheduled mailbox. Returns generated token (unless concurrency is exceeded)
-        bool PushActivation(ui32 activation, ui64 revolvingCounter) {
-            Activations.Push(activation, revolvingCounter);
-            TAtomicBase active = AtomicIncrement(Active);
-            if (active <= Concurrency) { // token generated
-                AtomicIncrement(Tokens);
-                return true;
-            }
-            return false;
-        }
-
-        template <bool Relaxed>
-        static bool TryAcquireTokenImpl(TAtomic* tokens) {
-            while (true) {
-                TAtomicBase value;
-                if constexpr (Relaxed) {
-                    value = RelaxedLoad(tokens);
-                } else {
-                    value = AtomicLoad(tokens);
-                }
-                if (value > 0) {
-                    if (AtomicCas(tokens, value - 1, value)) {
-                        return true; // token acquired
-                    }
-                } else {
-                    return false; // no more tokens
-                }
-            }
-        }
-
-        // Try acquire pending token. Must be done before execution
-        bool TryAcquireToken() {
-            return TryAcquireTokenImpl<false>(&Tokens);
-        }
-
-        // Try acquire pending token. Must be done before execution
-        bool TryAcquireTokenRelaxed() {
-            return TryAcquireTokenImpl<true>(&Tokens);
-        }
-
-        // Get activation. Requires acquired token.
-        void BeginExecution(ui32& activation, ui64 revolvingCounter) {
-            while (!RelaxedLoad(&StopFlag)) {
-                if (activation = Activations.Pop(++revolvingCounter)) {
-                    return;
-                }
-                SpinLockPause();
-            }
-            activation = 0; // should stop
-        }
-
-        // End currently active execution and start new one if token is available.
-        // Reuses token if it's not destroyed.
-        // Returned `true` means successful switch, `activation` is filled.
-        // Returned `false` means execution has ended, no need to call StopExecution()
-        bool NextExecution(ui32& activation, ui64 revolvingCounter) {
-            if (AtomicDecrement(Active) >= Concurrency) { // reuse just released token
-                BeginExecution(activation, revolvingCounter);
-                return true;
-            } else if (TryAcquireToken()) { // another token acquired
-                BeginExecution(activation, revolvingCounter);
-                return true;
-            }
-            return false; // no more tokens available
-        }
-
-        // Stop active execution. Returns released token (unless it is destroyed)
-        bool StopExecution() {
-            TAtomicBase active = AtomicDecrement(Active);
-            if (active >= Concurrency) { // token released
-                AtomicIncrement(Tokens);
-                return true;
-            }
-            return false; // token destroyed
-        }
-
-        // Switch worker context into this pool
-        void Switch(TWorkerContext& wctx, ui64 softDeadlineTs, TExecutorThreadStats& stats) {
-            wctx.Switch(ExecutorPool, MailboxTable, TimePerMailboxTs, EventsPerMailbox, softDeadlineTs, &stats);
-        }
-    };
-
-    class TPoolScheduler {
-        class TSchedulable {
-            // Lower PoolBits store PoolId
-            // All other higher bits store virtual runtime in cycles
-            using TValue = ui64;
-            TValue Value;
-
-            static constexpr ui64 PoolIdMask = ui64((1ull << PoolBits) - 1);
-            static constexpr ui64 VRunTsMask = ~PoolIdMask;
-
-        public:
-            explicit TSchedulable(TPoolId poolId = MaxPools, ui64 vrunts = 0)
-                : Value((poolId & PoolIdMask) | (vrunts & VRunTsMask))
-            {}
-
-            TPoolId GetPoolId() const {
-                return Value & PoolIdMask;
-            }
-
-            ui64 GetVRunTs() const {
-                // Do not truncate pool id
-                // NOTE: it decrease accuracy, but improves performance
-                return Value;
-            }
-
-            ui64 GetPreciseVRunTs() const {
-                return Value & VRunTsMask;
-            }
-
-            void SetVRunTs(ui64 vrunts) {
-                Value = (Value & PoolIdMask) | (vrunts & VRunTsMask);
-            }
-
-            void Account(ui64 base, ui64 ts) {
-                // Add at least minimum amount to change Value
-                SetVRunTs(base + Max(ts, PoolIdMask + 1));
-            }
-        };
-
-        // For min-heap of Items
-        struct TCmp {
-            bool operator()(TSchedulable lhs, TSchedulable rhs) const {
-                return lhs.GetVRunTs() > rhs.GetVRunTs();
-            }
-        };
-
-        TPoolId Size = 0; // total number of pools on this cpu
-        TPoolId Current = 0; // index of current pool in `Items`
-
-        // At the beginning `Current` items are orginized as binary min-heap -- ready to be scheduled
-        // The rest `Size - Current` items are unordered (required to keep track of last vrunts)
-        TSchedulable Items[MaxPools]; // virtual runtime in cycles for each pool
-        ui64 MinVRunTs = 0; // virtual runtime used by waking pools (system's vrunts)
-        ui64 Ts = 0; // real timestamp of current execution start (for accounting)
-
-        // Maps PoolId into it's inverse weight
-        ui64 InvWeights[MaxPools];
-        static constexpr ui64 VRunTsOverflow = ui64(1ull << 62ull) / MaxPoolWeight;
-
-    public:
-        void AddPool(TPoolId pool, TPoolWeight weight) {
-            Items[Size] = TSchedulable(pool, MinVRunTs);
-            Size++;
-            InvWeights[pool] = MaxPoolWeight / std::clamp(weight ? weight : DefPoolWeight, MinPoolWeight, MaxPoolWeight);
-        }
-
-        // Iterate over pools in scheduling order
-        // should be used in construction:
-        // for (TPoolId pool = Begin(); pool != End(); pool = Next())
-        TPoolId Begin() {
-            // Wrap vruntime around to avoid overflow, if required
-            if (Y_UNLIKELY(MinVRunTs >= VRunTsOverflow)) {
-                for (TPoolId i = 0; i < Size; i++) {
-                    ui64 ts = Items[i].GetPreciseVRunTs();
-                    Items[i].SetVRunTs(ts >= VRunTsOverflow ? ts - VRunTsOverflow : 0);
+    struct TUnitedWorkers::TWorker: public TNonCopyable { 
+        TAutoPtr<TExecutorThread> Thread; 
+        volatile TThreadId ThreadId = UnknownThreadId; 
+        NSchedulerQueue::TQueueType SchedulerQueue; 
+    }; 
+
+    struct TUnitedWorkers::TPool: public TNonCopyable { 
+        TAtomic Waiters = 0; // Number of idle cpus, waiting for activations in this pool 
+        char Padding[64 - sizeof(TAtomic)]; 
+
+        TUnorderedCache<ui32, 512, 4> Activations; // MPMC-queue for mailbox activations 
+        TAtomic Active = 0; // Number of mailboxes ready for execution or currently executing 
+        TAtomic Tokens = 0; // Pending tokens (token is required for worker to start execution, guarantees concurrency limit and activation availability) 
+        volatile bool StopFlag = false; 
+
+        // Configuration 
+        TPoolId PoolId; 
+        TAtomicBase Concurrency; // Max concurrent workers running this pool 
+        IExecutorPool* ExecutorPool; 
+        TMailboxTable* MailboxTable; 
+        ui64 TimePerMailboxTs; 
+        ui32 EventsPerMailbox; 
+ 
+        // Cpus this pool is allowed to run on 
+        // Cpus are specified in wake order 
+        TStackVec<TCpu*, 15> WakeOrderCpus; 
+ 
+        ~TPool() { 
+            while (Activations.Pop(0)) {} 
+        } 
+ 
+        void Stop() { 
+            AtomicStore(&StopFlag, true); 
+        } 
+ 
+        bool IsUnited() const { 
+            return WakeOrderCpus.size(); 
+        } 
+ 
+        // Add activation of newly scheduled mailbox. Returns generated token (unless concurrency is exceeded) 
+        bool PushActivation(ui32 activation, ui64 revolvingCounter) { 
+            Activations.Push(activation, revolvingCounter); 
+            TAtomicBase active = AtomicIncrement(Active); 
+            if (active <= Concurrency) { // token generated 
+                AtomicIncrement(Tokens); 
+                return true; 
+            } 
+            return false; 
+        } 
+ 
+        template <bool Relaxed> 
+        static bool TryAcquireTokenImpl(TAtomic* tokens) { 
+            while (true) { 
+                TAtomicBase value; 
+                if constexpr (Relaxed) { 
+                    value = RelaxedLoad(tokens); 
+                } else { 
+                    value = AtomicLoad(tokens); 
                 }
-                MinVRunTs -= VRunTsOverflow;
-            }
-            Current = Size;
-            std::make_heap(Items, Items + Current, TCmp());
-            return Next();
-        }
-
-        constexpr TPoolId End() const {
-            return MaxPools;
-        }
-
-        TPoolId Next() {
-            if (Current > 0) {
-                std::pop_heap(Items, Items + Current, TCmp());
-                Current--;
-                return CurrentPool();
-            } else {
-                return End();
-            }
-        }
-
-        // Scheduling was successful, we are going to run CurrentPool()
-        void Scheduled() {
-            MinVRunTs = Max(MinVRunTs, Items[Current].GetPreciseVRunTs());
-            // NOTE: Ts is propagated on Account() to avoid gaps
-        }
-
-        // Schedule specific pool that woke up cpu after idle
-        void ScheduledAfterIdle(TPoolId pool, ui64 ts) {
-            if (Y_UNLIKELY(ts < Ts)) { // anomaly: time goes backwards (e.g. rdtsc is reset to zero on cpu reset)
-                Ts = ts; // just skip anomalous time slice
-                return;
-            }
-            MinVRunTs += (ts - Ts) * (MaxPoolWeight / DefPoolWeight); // propagate system's vrunts to blur difference between pools
-            Ts = ts; // propagate time w/o accounting to any pool
-
-            // Set specified pool as current, it requires scan
-            for (Current = 0; Current < Size && pool != Items[Current].GetPoolId(); Current++) {}
-            Y_VERIFY(Current < Size);
-        }
-
-        // Account currently running pool till now (ts)
-        void Account(ui64 ts) {
-            // Skip time slice for the first run and when time goes backwards (e.g. rdtsc is reset to zero on cpu reset)
-            if (Y_LIKELY(Ts > 0 && Ts <= ts)) {
-                TPoolId pool = CurrentPool();
-                Y_VERIFY(pool < MaxPools);
-                Items[Current].Account(MinVRunTs, (ts - Ts) * InvWeights[pool]);
-            }
-            Ts = ts; // propagate time
-        }
-
-        TPoolId CurrentPool() const {
-            return Items[Current].GetPoolId();
-        }
-    };
-
-    // Cyclic array of timers for idle workers to wait for hard preemption on
-    struct TIdleQueue: public TNonCopyable {
-        TArrayHolder<TTimerFd> Timers;
-        size_t Size;
-        TAtomic EnqueueCounter = 0;
-        TAtomic DequeueCounter = 0;
-
-        explicit TIdleQueue(size_t size)
-            : Timers(new TTimerFd[size])
-            , Size(size)
-        {}
-
-        void Stop() {
-            for (size_t i = 0; i < Size; i++) {
-                Timers[i].Wake();
-            }
-        }
-
-        // Returns timer which new idle-worker should wait for
-        TTimerFd* Enqueue() {
-            return &Timers[AtomicGetAndIncrement(EnqueueCounter) % Size];
-        }
-
-        // Returns timer that hard preemption should trigger to wake idle-worker
-        TTimerFd* Dequeue() {
-            return &Timers[AtomicGetAndIncrement(DequeueCounter) % Size];
-        }
-    };
-
-    // Base class for cpu-local managers that help workers on single cpu to cooperate
-    struct TCpuLocalManager: public TThrRefBase {
-        TUnitedWorkers* United;
-
-        explicit TCpuLocalManager(TUnitedWorkers* united)
-            : United(united)
-        {}
-
-        virtual TWorkerId WorkerCount() const = 0;
-        virtual void AddWorker(TWorkerId workerId) = 0;
-        virtual void Stop() = 0;
-    };
-
-    // Represents cpu with single associated worker that is able to execute any pool.
-    // It always executes pool assigned by balancer and switch pool only if assigned pool has changed
-    struct TAssignedCpu: public TCpuLocalManager {
-        bool Started = false;
-
-        TAssignedCpu(TUnitedWorkers* united)
-            : TCpuLocalManager(united)
-        {}
-
-        TWorkerId WorkerCount() const override {
-            return 1;
-        }
-
-        void AddWorker(TWorkerId workerId) override {
-            Y_UNUSED(workerId);
-        }
-
-        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) {
-            ui32 activation;
-            if (Y_UNLIKELY(!Started)) {
-                Started = true;
-            } else if (Y_UNLIKELY(United->IsPoolReassigned(wctx))) {
-                United->StopExecution(wctx.PoolId); // stop current execution and switch pool if reassigned
-            } else if (United->NextExecution(wctx.PoolId, activation, revolvingCounter)) {
-                return activation; // another activation from currently executing pool (or 0 if stopped)
-            }
-
-            // Switch to another pool, it blocks until token is acquired
-            if (Y_UNLIKELY(!SwitchPool(wctx))) {
-                return 0; // stopped
-            }
-            United->SwitchPool(wctx, 0);
-            United->BeginExecution(wctx.PoolId, activation, revolvingCounter);
-            return activation;
-        }
-
-        void Stop() override {
-        }
-
-    private:
-        // Sets next pool to run, and acquires token, blocks if there are no tokens
-        bool SwitchPool(TWorkerContext& wctx) {
-            if (Y_UNLIKELY(United->IsStopped())) {
-                return false;
-            }
-
-            // Run balancer (if it's time to)
-            United->Balance();
-
-            // Select pool to execute
-            wctx.PoolId = United->AssignedPool(wctx);
-            Y_VERIFY(wctx.PoolId != CpuShared);
-            if (United->TryAcquireToken(wctx.PoolId)) {
-                return true;
-            }
-
-            // No more work -- wait for activations (spinning, then blocked)
-            wctx.PoolId = United->Idle(wctx.PoolId, wctx);
-
-            // Wakeup or stop occured
-            if (Y_UNLIKELY(wctx.PoolId == CpuStopped)) {
-                return false;
-            }
-            return true; // United->Idle() has already acquired token
-        }
-    };
-
-    // Lock-free data structure that help workers on single cpu to discover their state and do hard preemptions
-    struct TSharedCpu: public TCpuLocalManager {
-        // Current lease
-        volatile TLease::TValue CurrentLease;
-        char Padding1[64 - sizeof(TLease)];
-
-        // Slow pools
-        // the highest bit: 1=wait-for-slow-workers mode 0=else
-        // any lower bit (poolId is bit position): 1=pool-is-slow 0=pool-is-fast
-        volatile TPoolsMask SlowPoolsMask = 0;
-        char Padding2[64 - sizeof(TPoolsMask)];
-
-        // Must be accessed under never expiring lease to avoid races
-        TPoolScheduler PoolSched;
-        TWorkerId FastWorker = MaxWorkers;
-        TTimerFd* PreemptionTimer = nullptr;
-        ui64 HardPreemptionTs = 0;
-        bool Started = false;
-
-        TIdleQueue IdleQueue;
-
-        struct TConfig {
-            const TCpuId CpuId;
-            const TWorkerId Workers;
-            ui64 SoftLimitTs;
-            ui64 HardLimitTs;
-            ui64 EventLimitTs;
-            ui64 LimitPrecisionTs;
-            const int IdleWorkerPriority;
-            const int FastWorkerPriority;
-            const bool NoRealtime;
-            const bool NoAffinity;
-            const TCpuAllocation CpuAlloc;
-
-            TConfig(const TCpuAllocation& allocation, const TUnitedWorkersConfig& united)
-                : CpuId(allocation.CpuId)
-                , Workers(allocation.AllowedPools.size() + 1)
-                , SoftLimitTs(Us2Ts(united.PoolLimitUs))
-                , HardLimitTs(Us2Ts(united.PoolLimitUs + united.EventLimitUs))
-                , EventLimitTs(Us2Ts(united.EventLimitUs))
-                , LimitPrecisionTs(Us2Ts(united.LimitPrecisionUs))
-                , IdleWorkerPriority(std::clamp<ui64>(united.IdleWorkerPriority ? united.IdleWorkerPriority : 20, 1, 99))
-                , FastWorkerPriority(std::clamp<ui64>(united.FastWorkerPriority ? united.FastWorkerPriority : 10, 1, IdleWorkerPriority - 1))
-                , NoRealtime(united.NoRealtime)
-                , NoAffinity(united.NoAffinity)
-                , CpuAlloc(allocation)
-            {}
-        };
-
-        TConfig Config;
-        TVector<TWorkerId> Workers;
-
-        TSharedCpu(const TConfig& cfg, TUnitedWorkers* united)
-            : TCpuLocalManager(united)
-            , IdleQueue(cfg.Workers)
-            , Config(cfg)
-        {
-            for (const auto& pa : Config.CpuAlloc.AllowedPools) {
-                PoolSched.AddPool(pa.PoolId, pa.Weight);
-            }
-        }
-
-        TWorkerId WorkerCount() const override {
-            return Config.Workers;
-        }
-
-        void AddWorker(TWorkerId workerId) override {
-            if (Workers.empty()) {
-                // Grant lease to the first worker
-                AtomicStore(&CurrentLease, TLease(workerId, NeverExpire).Value);
-            }
-            Workers.push_back(workerId);
-        }
-
-        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) {
-            ui32 activation;
-            if (!wctx.Lease.IsNeverExpiring()) {
-                if (wctx.SoftDeadlineTs < GetCycleCountFast()) { // stop if lease has expired or is near to be expired
-                    United->StopExecution(wctx.PoolId);
-                } else if (United->NextExecution(wctx.PoolId, activation, revolvingCounter)) {
-                    return activation; // another activation from currently executing pool (or 0 if stopped)
-                }
-            }
-
-            // Switch to another pool, it blocks until token is acquired
-            if (Y_UNLIKELY(!SwitchPool(wctx))) {
-                return 0; // stopped
-            }
-            United->BeginExecution(wctx.PoolId, activation, revolvingCounter);
-            return activation;
-        }
-
-        void Stop() override {
-            IdleQueue.Stop();
-        }
-
-    private:
-        enum EPriority {
-            IdlePriority, // highest (real-time, Config.IdleWorkerPriority)
-            FastPriority, // normal (real-time, Config.FastWorkerPriority)
-            SlowPriority, // lowest (not real-time)
-        };
-
-        enum EWorkerAction {
-            // Fast-worker
-            ExecuteFast,
-            WaitForSlow,
-
-            // Slow-worker
-            BecameIdle,
-            WakeFast,
-
-            // Idle-worker
-            BecameFast,
-            Standby,
-
-            // Common
-            Stopped,
-        };
-
-        // Thread-safe; should be called from worker
-        // Blocks for idle-workers; sets lease and next pool to run
-        bool SwitchPool(TWorkerContext& wctx) {
-            TTimerFd* idleTimer = nullptr;
-            while (true) {
-                if (DisablePreemptionAndTryExtend(wctx.Lease)) { // if fast-worker
-                    if (Y_UNLIKELY(!Started)) {
-                        SetPriority(0, FastPriority);
-                        Started = true;
-                    }
-                    while (true) {
-                        switch (FastWorkerAction(wctx)) {
-                        case ExecuteFast:
-                            United->SwitchPool(wctx, wctx.Lease.GetPreciseExpireTs() - Config.EventLimitTs);
-                            EnablePreemptionAndGrant(wctx.Lease);
-                            return true;
-                        case WaitForSlow:
-                            FastWorkerSleep(GetCycleCountFast() + Config.SoftLimitTs);
-                            break;
-                        case Stopped: return false;
-                        default: Y_FAIL();
+                if (value > 0) { 
+                    if (AtomicCas(tokens, value - 1, value)) { 
+                        return true; // token acquired 
+                    } 
+                } else { 
+                    return false; // no more tokens 
+                } 
+            } 
+        }
+
+        // Try acquire pending token. Must be done before execution 
+        bool TryAcquireToken() { 
+            return TryAcquireTokenImpl<false>(&Tokens); 
+        } 
+
+        // Try acquire pending token. Must be done before execution 
+        bool TryAcquireTokenRelaxed() { 
+            return TryAcquireTokenImpl<true>(&Tokens); 
+        } 
+ 
+        // Get activation. Requires acquired token. 
+        void BeginExecution(ui32& activation, ui64 revolvingCounter) { 
+            while (!RelaxedLoad(&StopFlag)) { 
+                if (activation = Activations.Pop(++revolvingCounter)) { 
+                    return; 
+                } 
+                SpinLockPause(); 
+            }
+            activation = 0; // should stop 
+        } 
+
+        // End currently active execution and start new one if token is available. 
+        // Reuses token if it's not destroyed. 
+        // Returned `true` means successful switch, `activation` is filled. 
+        // Returned `false` means execution has ended, no need to call StopExecution() 
+        bool NextExecution(ui32& activation, ui64 revolvingCounter) { 
+            if (AtomicDecrement(Active) >= Concurrency) { // reuse just released token 
+                BeginExecution(activation, revolvingCounter); 
+                return true; 
+            } else if (TryAcquireToken()) { // another token acquired 
+                BeginExecution(activation, revolvingCounter); 
+                return true; 
+            } 
+            return false; // no more tokens available 
+        } 
+
+        // Stop active execution. Returns released token (unless it is destroyed) 
+        bool StopExecution() { 
+            TAtomicBase active = AtomicDecrement(Active); 
+            if (active >= Concurrency) { // token released 
+                AtomicIncrement(Tokens); 
+                return true; 
+            } 
+            return false; // token destroyed 
+        } 
+ 
+        // Switch worker context into this pool 
+        void Switch(TWorkerContext& wctx, ui64 softDeadlineTs, TExecutorThreadStats& stats) { 
+            wctx.Switch(ExecutorPool, MailboxTable, TimePerMailboxTs, EventsPerMailbox, softDeadlineTs, &stats); 
+        } 
+    }; 
+ 
+    class TPoolScheduler { 
+        class TSchedulable { 
+            // Lower PoolBits store PoolId 
+            // All other higher bits store virtual runtime in cycles 
+            using TValue = ui64; 
+            TValue Value; 
+ 
+            static constexpr ui64 PoolIdMask = ui64((1ull << PoolBits) - 1); 
+            static constexpr ui64 VRunTsMask = ~PoolIdMask; 
+ 
+        public: 
+            explicit TSchedulable(TPoolId poolId = MaxPools, ui64 vrunts = 0) 
+                : Value((poolId & PoolIdMask) | (vrunts & VRunTsMask)) 
+            {} 
+ 
+            TPoolId GetPoolId() const { 
+                return Value & PoolIdMask; 
+            } 
+ 
+            ui64 GetVRunTs() const { 
+                // Do not truncate pool id 
+                // NOTE: it decrease accuracy, but improves performance 
+                return Value; 
+            } 
+ 
+            ui64 GetPreciseVRunTs() const { 
+                return Value & VRunTsMask; 
+            } 
+ 
+            void SetVRunTs(ui64 vrunts) { 
+                Value = (Value & PoolIdMask) | (vrunts & VRunTsMask); 
+            } 
+ 
+            void Account(ui64 base, ui64 ts) { 
+                // Add at least minimum amount to change Value 
+                SetVRunTs(base + Max(ts, PoolIdMask + 1)); 
+            } 
+        }; 
+ 
+        // For min-heap of Items 
+        struct TCmp { 
+            bool operator()(TSchedulable lhs, TSchedulable rhs) const { 
+                return lhs.GetVRunTs() > rhs.GetVRunTs(); 
+            } 
+        }; 
+ 
+        TPoolId Size = 0; // total number of pools on this cpu 
+        TPoolId Current = 0; // index of current pool in `Items` 
+ 
+        // At the beginning `Current` items are orginized as binary min-heap -- ready to be scheduled 
+        // The rest `Size - Current` items are unordered (required to keep track of last vrunts) 
+        TSchedulable Items[MaxPools]; // virtual runtime in cycles for each pool 
+        ui64 MinVRunTs = 0; // virtual runtime used by waking pools (system's vrunts) 
+        ui64 Ts = 0; // real timestamp of current execution start (for accounting) 
+ 
+        // Maps PoolId into it's inverse weight 
+        ui64 InvWeights[MaxPools]; 
+        static constexpr ui64 VRunTsOverflow = ui64(1ull << 62ull) / MaxPoolWeight; 
+ 
+    public: 
+        void AddPool(TPoolId pool, TPoolWeight weight) { 
+            Items[Size] = TSchedulable(pool, MinVRunTs); 
+            Size++; 
+            InvWeights[pool] = MaxPoolWeight / std::clamp(weight ? weight : DefPoolWeight, MinPoolWeight, MaxPoolWeight); 
+        } 
+ 
+        // Iterate over pools in scheduling order 
+        // should be used in construction: 
+        // for (TPoolId pool = Begin(); pool != End(); pool = Next()) 
+        TPoolId Begin() { 
+            // Wrap vruntime around to avoid overflow, if required 
+            if (Y_UNLIKELY(MinVRunTs >= VRunTsOverflow)) { 
+                for (TPoolId i = 0; i < Size; i++) { 
+                    ui64 ts = Items[i].GetPreciseVRunTs(); 
+                    Items[i].SetVRunTs(ts >= VRunTsOverflow ? ts - VRunTsOverflow : 0); 
+                } 
+                MinVRunTs -= VRunTsOverflow; 
+            } 
+            Current = Size; 
+            std::make_heap(Items, Items + Current, TCmp()); 
+            return Next(); 
+        } 
+ 
+        constexpr TPoolId End() const { 
+            return MaxPools; 
+        } 
+ 
+        TPoolId Next() { 
+            if (Current > 0) { 
+                std::pop_heap(Items, Items + Current, TCmp()); 
+                Current--; 
+                return CurrentPool(); 
+            } else { 
+                return End(); 
+            } 
+        } 
+ 
+        // Scheduling was successful, we are going to run CurrentPool() 
+        void Scheduled() { 
+            MinVRunTs = Max(MinVRunTs, Items[Current].GetPreciseVRunTs()); 
+            // NOTE: Ts is propagated on Account() to avoid gaps 
+        } 
+ 
+        // Schedule specific pool that woke up cpu after idle 
+        void ScheduledAfterIdle(TPoolId pool, ui64 ts) { 
+            if (Y_UNLIKELY(ts < Ts)) { // anomaly: time goes backwards (e.g. rdtsc is reset to zero on cpu reset) 
+                Ts = ts; // just skip anomalous time slice 
+                return; 
+            } 
+            MinVRunTs += (ts - Ts) * (MaxPoolWeight / DefPoolWeight); // propagate system's vrunts to blur difference between pools 
+            Ts = ts; // propagate time w/o accounting to any pool 
+ 
+            // Set specified pool as current, it requires scan 
+            for (Current = 0; Current < Size && pool != Items[Current].GetPoolId(); Current++) {} 
+            Y_VERIFY(Current < Size); 
+        } 
+ 
+        // Account currently running pool till now (ts) 
+        void Account(ui64 ts) { 
+            // Skip time slice for the first run and when time goes backwards (e.g. rdtsc is reset to zero on cpu reset) 
+            if (Y_LIKELY(Ts > 0 && Ts <= ts)) { 
+                TPoolId pool = CurrentPool(); 
+                Y_VERIFY(pool < MaxPools); 
+                Items[Current].Account(MinVRunTs, (ts - Ts) * InvWeights[pool]); 
+            } 
+            Ts = ts; // propagate time 
+        } 
+ 
+        TPoolId CurrentPool() const { 
+            return Items[Current].GetPoolId(); 
+        } 
+    }; 
+ 
+    // Cyclic array of timers for idle workers to wait for hard preemption on 
+    struct TIdleQueue: public TNonCopyable { 
+        TArrayHolder<TTimerFd> Timers; 
+        size_t Size; 
+        TAtomic EnqueueCounter = 0; 
+        TAtomic DequeueCounter = 0; 
+ 
+        explicit TIdleQueue(size_t size) 
+            : Timers(new TTimerFd[size]) 
+            , Size(size) 
+        {} 
+ 
+        void Stop() { 
+            for (size_t i = 0; i < Size; i++) { 
+                Timers[i].Wake(); 
+            } 
+        } 
+ 
+        // Returns timer which new idle-worker should wait for 
+        TTimerFd* Enqueue() { 
+            return &Timers[AtomicGetAndIncrement(EnqueueCounter) % Size]; 
+        } 
+ 
+        // Returns timer that hard preemption should trigger to wake idle-worker 
+        TTimerFd* Dequeue() { 
+            return &Timers[AtomicGetAndIncrement(DequeueCounter) % Size]; 
+        } 
+    }; 
+ 
+    // Base class for cpu-local managers that help workers on single cpu to cooperate 
+    struct TCpuLocalManager: public TThrRefBase { 
+        TUnitedWorkers* United; 
+ 
+        explicit TCpuLocalManager(TUnitedWorkers* united) 
+            : United(united) 
+        {} 
+ 
+        virtual TWorkerId WorkerCount() const = 0; 
+        virtual void AddWorker(TWorkerId workerId) = 0; 
+        virtual void Stop() = 0; 
+    }; 
+ 
+    // Represents cpu with single associated worker that is able to execute any pool. 
+    // It always executes pool assigned by balancer and switch pool only if assigned pool has changed 
+    struct TAssignedCpu: public TCpuLocalManager { 
+        bool Started = false; 
+ 
+        TAssignedCpu(TUnitedWorkers* united) 
+            : TCpuLocalManager(united) 
+        {} 
+ 
+        TWorkerId WorkerCount() const override { 
+            return 1; 
+        } 
+ 
+        void AddWorker(TWorkerId workerId) override { 
+            Y_UNUSED(workerId); 
+        } 
+ 
+        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) { 
+            ui32 activation; 
+            if (Y_UNLIKELY(!Started)) { 
+                Started = true; 
+            } else if (Y_UNLIKELY(United->IsPoolReassigned(wctx))) { 
+                United->StopExecution(wctx.PoolId); // stop current execution and switch pool if reassigned 
+            } else if (United->NextExecution(wctx.PoolId, activation, revolvingCounter)) { 
+                return activation; // another activation from currently executing pool (or 0 if stopped) 
+            } 
+ 
+            // Switch to another pool, it blocks until token is acquired 
+            if (Y_UNLIKELY(!SwitchPool(wctx))) { 
+                return 0; // stopped 
+            } 
+            United->SwitchPool(wctx, 0); 
+            United->BeginExecution(wctx.PoolId, activation, revolvingCounter); 
+            return activation; 
+        } 
+ 
+        void Stop() override { 
+        } 
+ 
+    private: 
+        // Sets next pool to run, and acquires token, blocks if there are no tokens 
+        bool SwitchPool(TWorkerContext& wctx) { 
+            if (Y_UNLIKELY(United->IsStopped())) { 
+                return false; 
+            } 
+ 
+            // Run balancer (if it's time to) 
+            United->Balance(); 
+ 
+            // Select pool to execute 
+            wctx.PoolId = United->AssignedPool(wctx); 
+            Y_VERIFY(wctx.PoolId != CpuShared); 
+            if (United->TryAcquireToken(wctx.PoolId)) { 
+                return true; 
+            } 
+ 
+            // No more work -- wait for activations (spinning, then blocked) 
+            wctx.PoolId = United->Idle(wctx.PoolId, wctx); 
+ 
+            // Wakeup or stop occured 
+            if (Y_UNLIKELY(wctx.PoolId == CpuStopped)) { 
+                return false; 
+            } 
+            return true; // United->Idle() has already acquired token 
+        } 
+    }; 
+ 
+    // Lock-free data structure that help workers on single cpu to discover their state and do hard preemptions 
+    struct TSharedCpu: public TCpuLocalManager { 
+        // Current lease 
+        volatile TLease::TValue CurrentLease; 
+        char Padding1[64 - sizeof(TLease)]; 
+ 
+        // Slow pools 
+        // the highest bit: 1=wait-for-slow-workers mode 0=else 
+        // any lower bit (poolId is bit position): 1=pool-is-slow 0=pool-is-fast 
+        volatile TPoolsMask SlowPoolsMask = 0; 
+        char Padding2[64 - sizeof(TPoolsMask)]; 
+ 
+        // Must be accessed under never expiring lease to avoid races 
+        TPoolScheduler PoolSched; 
+        TWorkerId FastWorker = MaxWorkers; 
+        TTimerFd* PreemptionTimer = nullptr; 
+        ui64 HardPreemptionTs = 0; 
+        bool Started = false; 
+ 
+        TIdleQueue IdleQueue; 
+ 
+        struct TConfig { 
+            const TCpuId CpuId; 
+            const TWorkerId Workers; 
+            ui64 SoftLimitTs; 
+            ui64 HardLimitTs; 
+            ui64 EventLimitTs; 
+            ui64 LimitPrecisionTs; 
+            const int IdleWorkerPriority; 
+            const int FastWorkerPriority; 
+            const bool NoRealtime; 
+            const bool NoAffinity; 
+            const TCpuAllocation CpuAlloc; 
+ 
+            TConfig(const TCpuAllocation& allocation, const TUnitedWorkersConfig& united) 
+                : CpuId(allocation.CpuId) 
+                , Workers(allocation.AllowedPools.size() + 1) 
+                , SoftLimitTs(Us2Ts(united.PoolLimitUs)) 
+                , HardLimitTs(Us2Ts(united.PoolLimitUs + united.EventLimitUs)) 
+                , EventLimitTs(Us2Ts(united.EventLimitUs)) 
+                , LimitPrecisionTs(Us2Ts(united.LimitPrecisionUs)) 
+                , IdleWorkerPriority(std::clamp<ui64>(united.IdleWorkerPriority ? united.IdleWorkerPriority : 20, 1, 99)) 
+                , FastWorkerPriority(std::clamp<ui64>(united.FastWorkerPriority ? united.FastWorkerPriority : 10, 1, IdleWorkerPriority - 1)) 
+                , NoRealtime(united.NoRealtime) 
+                , NoAffinity(united.NoAffinity) 
+                , CpuAlloc(allocation) 
+            {} 
+        }; 
+ 
+        TConfig Config; 
+        TVector<TWorkerId> Workers; 
+ 
+        TSharedCpu(const TConfig& cfg, TUnitedWorkers* united) 
+            : TCpuLocalManager(united) 
+            , IdleQueue(cfg.Workers) 
+            , Config(cfg) 
+        { 
+            for (const auto& pa : Config.CpuAlloc.AllowedPools) { 
+                PoolSched.AddPool(pa.PoolId, pa.Weight); 
+            } 
+        } 
+ 
+        TWorkerId WorkerCount() const override { 
+            return Config.Workers; 
+        } 
+ 
+        void AddWorker(TWorkerId workerId) override { 
+            if (Workers.empty()) { 
+                // Grant lease to the first worker 
+                AtomicStore(&CurrentLease, TLease(workerId, NeverExpire).Value); 
+            } 
+            Workers.push_back(workerId); 
+        } 
+ 
+        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) { 
+            ui32 activation; 
+            if (!wctx.Lease.IsNeverExpiring()) { 
+                if (wctx.SoftDeadlineTs < GetCycleCountFast()) { // stop if lease has expired or is near to be expired 
+                    United->StopExecution(wctx.PoolId); 
+                } else if (United->NextExecution(wctx.PoolId, activation, revolvingCounter)) { 
+                    return activation; // another activation from currently executing pool (or 0 if stopped) 
+                } 
+            } 
+ 
+            // Switch to another pool, it blocks until token is acquired 
+            if (Y_UNLIKELY(!SwitchPool(wctx))) { 
+                return 0; // stopped 
+            } 
+            United->BeginExecution(wctx.PoolId, activation, revolvingCounter); 
+            return activation; 
+        } 
+ 
+        void Stop() override { 
+            IdleQueue.Stop(); 
+        } 
+ 
+    private: 
+        enum EPriority { 
+            IdlePriority, // highest (real-time, Config.IdleWorkerPriority) 
+            FastPriority, // normal (real-time, Config.FastWorkerPriority) 
+            SlowPriority, // lowest (not real-time) 
+        }; 
+ 
+        enum EWorkerAction { 
+            // Fast-worker 
+            ExecuteFast, 
+            WaitForSlow, 
+ 
+            // Slow-worker 
+            BecameIdle, 
+            WakeFast, 
+ 
+            // Idle-worker 
+            BecameFast, 
+            Standby, 
+ 
+            // Common 
+            Stopped, 
+        }; 
+ 
+        // Thread-safe; should be called from worker 
+        // Blocks for idle-workers; sets lease and next pool to run 
+        bool SwitchPool(TWorkerContext& wctx) { 
+            TTimerFd* idleTimer = nullptr; 
+            while (true) { 
+                if (DisablePreemptionAndTryExtend(wctx.Lease)) { // if fast-worker 
+                    if (Y_UNLIKELY(!Started)) { 
+                        SetPriority(0, FastPriority); 
+                        Started = true; 
+                    } 
+                    while (true) { 
+                        switch (FastWorkerAction(wctx)) { 
+                        case ExecuteFast: 
+                            United->SwitchPool(wctx, wctx.Lease.GetPreciseExpireTs() - Config.EventLimitTs); 
+                            EnablePreemptionAndGrant(wctx.Lease); 
+                            return true; 
+                        case WaitForSlow: 
+                            FastWorkerSleep(GetCycleCountFast() + Config.SoftLimitTs); 
+                            break; 
+                        case Stopped: return false; 
+                        default: Y_FAIL(); 
+                        } 
+                    } 
+                } else if (wctx.Lease.IsNeverExpiring()) { // if idle-worker 
+                    switch (IdleWorkerAction(idleTimer, wctx.Lease.GetWorkerId())) { 
+                    case BecameFast: 
+                        SetPriority(0, FastPriority); 
+                        break; // try acquire new lease 
+                    case Standby: 
+                        if (!idleTimer) { 
+                            idleTimer = IdleQueue.Enqueue(); 
                         }
-                    }
-                } else if (wctx.Lease.IsNeverExpiring()) { // if idle-worker
-                    switch (IdleWorkerAction(idleTimer, wctx.Lease.GetWorkerId())) {
-                    case BecameFast:
-                        SetPriority(0, FastPriority);
-                        break; // try acquire new lease
-                    case Standby:
-                        if (!idleTimer) {
-                            idleTimer = IdleQueue.Enqueue();
-                        }
-                        SetPriority(0, IdlePriority);
-                        idleTimer->Wait();
+                        SetPriority(0, IdlePriority); 
+                        idleTimer->Wait(); 
                         break;
-                    case Stopped: return false;
-                    default: Y_FAIL();
+                    case Stopped: return false; 
+                    default: Y_FAIL(); 
                     }
-                } else { // lease has expired and hard preemption occured, so we are executing in a slow-worker
-                    wctx.IncrementPreemptedEvents();
-                    switch (SlowWorkerAction(wctx.PoolId)) {
-                    case WakeFast:
-                        WakeFastWorker();
+                } else { // lease has expired and hard preemption occured, so we are executing in a slow-worker 
+                    wctx.IncrementPreemptedEvents(); 
+                    switch (SlowWorkerAction(wctx.PoolId)) { 
+                    case WakeFast: 
+                        WakeFastWorker(); 
                         [[fallthrough]]; // no break; pass through
-                    case BecameIdle:
-                        wctx.Lease = wctx.Lease.NeverExpire();
-                        wctx.PoolId = MaxPools;
-                        idleTimer = nullptr;
+                    case BecameIdle: 
+                        wctx.Lease = wctx.Lease.NeverExpire(); 
+                        wctx.PoolId = MaxPools; 
+                        idleTimer = nullptr; 
                         break;
-                    case Stopped: return false;
-                    default: Y_FAIL();
+                    case Stopped: return false; 
+                    default: Y_FAIL(); 
                     }
                 }
-            }
-        }
-
-        enum ETryRunPool {
-            RunFastPool,
-            RunSlowPool,
-            NoTokens,
-        };
-
-        ETryRunPool TryRun(TPoolId pool) {
-            while (true) {
-                // updates WaitPoolsFlag in SlowPoolsMask according to scheduled pool slowness
-                TPoolsMask slow = AtomicLoad(&SlowPoolsMask);
-                if ((1ull << pool) & slow) { // we are about to execute slow pool (fast-worker will just wait, token is NOT required)
-                    if (slow & WaitPoolsFlag) {
-                        return RunSlowPool; // wait flag is already set
-                    } else {
-                        if (AtomicCas(&SlowPoolsMask, slow | WaitPoolsFlag, slow)) { // try set wait flag
-                            return RunSlowPool; // wait flag has been successfully set
-                        }
-                    }
-                } else { // we are about to execute fast pool, token required
-                    if (slow & WaitPoolsFlag) { // reset wait flag if required
-                        if (AtomicCas(&SlowPoolsMask, slow & ~WaitPoolsFlag, slow)) { // try reset wait flag
-                            return United->TryAcquireToken(pool) ? RunFastPool : NoTokens; // wait flag has been successfully reset
-                        }
-                    } else {
-                        return United->TryAcquireToken(pool) ? RunFastPool : NoTokens; // wait flag is already reset
+            } 
+        } 
+ 
+        enum ETryRunPool { 
+            RunFastPool, 
+            RunSlowPool, 
+            NoTokens, 
+        }; 
+ 
+        ETryRunPool TryRun(TPoolId pool) { 
+            while (true) { 
+                // updates WaitPoolsFlag in SlowPoolsMask according to scheduled pool slowness 
+                TPoolsMask slow = AtomicLoad(&SlowPoolsMask); 
+                if ((1ull << pool) & slow) { // we are about to execute slow pool (fast-worker will just wait, token is NOT required) 
+                    if (slow & WaitPoolsFlag) { 
+                        return RunSlowPool; // wait flag is already set 
+                    } else { 
+                        if (AtomicCas(&SlowPoolsMask, slow | WaitPoolsFlag, slow)) { // try set wait flag 
+                            return RunSlowPool; // wait flag has been successfully set 
+                        } 
                     }
-                }
-            }
-        }
-
-        EWorkerAction FastWorkerAction(TWorkerContext& wctx) {
-            if (Y_UNLIKELY(United->IsStopped())) {
-                return Stopped;
-            }
-
-            // Account current pool
-            ui64 ts = GetCycleCountFast();
-            PoolSched.Account(ts);
-
-            // Select next pool to execute
-            for (wctx.PoolId = PoolSched.Begin(); wctx.PoolId != PoolSched.End(); wctx.PoolId = PoolSched.Next()) {
-                switch (TryRun(wctx.PoolId)) {
-                case RunFastPool:
-                    PoolSched.Scheduled();
-                    wctx.Lease = PostponePreemption(wctx.Lease.GetWorkerId(), ts);
-                    return ExecuteFast;
-                case RunSlowPool:
-                    PoolSched.Scheduled();
-                    ResetPreemption(wctx.Lease.GetWorkerId(), ts); // there is no point in preemption during wait
-                    return WaitForSlow;
-                case NoTokens: // concurrency limit reached, or no more work in pool
-                    break; // just try next pool (if any)
-                }
-            }
-
-            // No more work, no slow-workers -- wait for activations (active, then blocked)
-            wctx.PoolId = United->Idle(CpuShared, wctx);
-
-            // Wakeup or stop occured
-            if (Y_UNLIKELY(wctx.PoolId == CpuStopped)) {
-                return Stopped;
-            }
-            ts = GetCycleCountFast();
-            PoolSched.ScheduledAfterIdle(wctx.PoolId, ts);
-            wctx.Lease = PostponePreemption(wctx.Lease.GetWorkerId(), ts);
-            return ExecuteFast; // United->Idle() has already acquired token
-        }
-
-        EWorkerAction IdleWorkerAction(TTimerFd* idleTimer, TWorkerId workerId) {
-            if (Y_UNLIKELY(United->IsStopped())) {
-                return Stopped;
-            }
-            if (!idleTimer) { // either worker start or became idle -- hard preemption is not required
-                return Standby;
-            }
-
-            TLease lease = TLease(AtomicLoad(&CurrentLease));
-            ui64 ts = GetCycleCountFast();
-            if (lease.GetExpireTs() < ts) { // current lease has expired
-                if (TryBeginHardPreemption(lease)) {
-                    SetPoolIsSlowFlag(PoolSched.CurrentPool());
-                    TWorkerId preempted = lease.GetWorkerId();
-                    SetPriority(United->GetWorkerThreadId(preempted), SlowPriority);
-                    LWPROBE(HardPreemption, Config.CpuId, PoolSched.CurrentPool(), preempted, workerId);
-                    EndHardPreemption(workerId);
-                    return BecameFast;
-                } else {
-                    // Lease has been changed just now, no way we need preemption right now, so no retry needed
-                    return Standby;
-                }
+                } else { // we are about to execute fast pool, token required 
+                    if (slow & WaitPoolsFlag) { // reset wait flag if required 
+                        if (AtomicCas(&SlowPoolsMask, slow & ~WaitPoolsFlag, slow)) { // try reset wait flag 
+                            return United->TryAcquireToken(pool) ? RunFastPool : NoTokens; // wait flag has been successfully reset 
+                        } 
+                    } else { 
+                        return United->TryAcquireToken(pool) ? RunFastPool : NoTokens; // wait flag is already reset 
+                    } 
+                } 
+            } 
+        } 
+ 
+        EWorkerAction FastWorkerAction(TWorkerContext& wctx) { 
+            if (Y_UNLIKELY(United->IsStopped())) { 
+                return Stopped; 
+            } 
+ 
+            // Account current pool 
+            ui64 ts = GetCycleCountFast(); 
+            PoolSched.Account(ts); 
+ 
+            // Select next pool to execute 
+            for (wctx.PoolId = PoolSched.Begin(); wctx.PoolId != PoolSched.End(); wctx.PoolId = PoolSched.Next()) { 
+                switch (TryRun(wctx.PoolId)) { 
+                case RunFastPool: 
+                    PoolSched.Scheduled(); 
+                    wctx.Lease = PostponePreemption(wctx.Lease.GetWorkerId(), ts); 
+                    return ExecuteFast; 
+                case RunSlowPool: 
+                    PoolSched.Scheduled(); 
+                    ResetPreemption(wctx.Lease.GetWorkerId(), ts); // there is no point in preemption during wait 
+                    return WaitForSlow; 
+                case NoTokens: // concurrency limit reached, or no more work in pool 
+                    break; // just try next pool (if any) 
+                } 
+            } 
+ 
+            // No more work, no slow-workers -- wait for activations (active, then blocked) 
+            wctx.PoolId = United->Idle(CpuShared, wctx); 
+ 
+            // Wakeup or stop occured 
+            if (Y_UNLIKELY(wctx.PoolId == CpuStopped)) { 
+                return Stopped; 
+            } 
+            ts = GetCycleCountFast(); 
+            PoolSched.ScheduledAfterIdle(wctx.PoolId, ts); 
+            wctx.Lease = PostponePreemption(wctx.Lease.GetWorkerId(), ts); 
+            return ExecuteFast; // United->Idle() has already acquired token 
+        } 
+ 
+        EWorkerAction IdleWorkerAction(TTimerFd* idleTimer, TWorkerId workerId) { 
+            if (Y_UNLIKELY(United->IsStopped())) { 
+                return Stopped; 
+            } 
+            if (!idleTimer) { // either worker start or became idle -- hard preemption is not required 
+                return Standby; 
+            } 
+ 
+            TLease lease = TLease(AtomicLoad(&CurrentLease)); 
+            ui64 ts = GetCycleCountFast(); 
+            if (lease.GetExpireTs() < ts) { // current lease has expired 
+                if (TryBeginHardPreemption(lease)) { 
+                    SetPoolIsSlowFlag(PoolSched.CurrentPool()); 
+                    TWorkerId preempted = lease.GetWorkerId(); 
+                    SetPriority(United->GetWorkerThreadId(preempted), SlowPriority); 
+                    LWPROBE(HardPreemption, Config.CpuId, PoolSched.CurrentPool(), preempted, workerId); 
+                    EndHardPreemption(workerId); 
+                    return BecameFast; 
+                } else { 
+                    // Lease has been changed just now, no way we need preemption right now, so no retry needed 
+                    return Standby; 
+                } 
             } else {
-                // Lease has not expired yet (maybe never expiring lease)
-                return Standby;
-            }
-        }
-
-        EWorkerAction SlowWorkerAction(TPoolId pool) {
-            if (Y_UNLIKELY(United->IsStopped())) {
-                return Stopped;
-            }
-            while (true) {
-                TPoolsMask slow = AtomicLoad(&SlowPoolsMask);
-                if (slow & (1ull << pool)) {
-                    if (slow == (1ull << pool) & WaitPoolsFlag) { // the last slow pool is going to became fast
-                        if (AtomicCas(&SlowPoolsMask, 0, slow)) { // reset both pool-is-slow flag and WaitPoolsFlag
-                            return WakeFast;
-                        }
-                    } else { // there are (a) several slow-worker or (b) one slow-worker w/o waiting fast-worker
-                        if (AtomicCas(&SlowPoolsMask, slow & ~(1ull << pool), slow)) { // reset pool-is-slow flag
-                            return BecameIdle;
-                        }
-                    }
-                } else {
-                    // SlowWorkerAction has been called between TryBeginHardPreemption and SetPoolIsSlowFlag
-                    // flag for this pool is not set yet, but we can be sure pool is slow:
-                    //  - because SlowWorkerAction has been called;
-                    //  - this mean lease has expired and hard preemption occured.
-                    // So just wait other worker to call SetPoolIsSlowFlag
-                    LWPROBE(SlowWorkerActionRace, Config.CpuId, pool, slow);
+                // Lease has not expired yet (maybe never expiring lease) 
+                return Standby; 
+            }
+        } 
+
+        EWorkerAction SlowWorkerAction(TPoolId pool) { 
+            if (Y_UNLIKELY(United->IsStopped())) { 
+                return Stopped; 
+            } 
+            while (true) { 
+                TPoolsMask slow = AtomicLoad(&SlowPoolsMask); 
+                if (slow & (1ull << pool)) { 
+                    if (slow == (1ull << pool) & WaitPoolsFlag) { // the last slow pool is going to became fast 
+                        if (AtomicCas(&SlowPoolsMask, 0, slow)) { // reset both pool-is-slow flag and WaitPoolsFlag 
+                            return WakeFast; 
+                        } 
+                    } else { // there are (a) several slow-worker or (b) one slow-worker w/o waiting fast-worker 
+                        if (AtomicCas(&SlowPoolsMask, slow & ~(1ull << pool), slow)) { // reset pool-is-slow flag 
+                            return BecameIdle; 
+                        } 
+                    } 
+                } else { 
+                    // SlowWorkerAction has been called between TryBeginHardPreemption and SetPoolIsSlowFlag 
+                    // flag for this pool is not set yet, but we can be sure pool is slow: 
+                    //  - because SlowWorkerAction has been called; 
+                    //  - this mean lease has expired and hard preemption occured. 
+                    // So just wait other worker to call SetPoolIsSlowFlag 
+                    LWPROBE(SlowWorkerActionRace, Config.CpuId, pool, slow); 
+                } 
+            } 
+        } 
+
+        void SetPoolIsSlowFlag(TPoolId pool) { 
+            while (true) { 
+                TPoolsMask slow = AtomicLoad(&SlowPoolsMask); 
+                if ((slow & (1ull << pool)) == 0) { // if pool is fast 
+                    if (AtomicCas(&SlowPoolsMask, slow | (1ull << pool), slow)) { // set pool-is-slow flag 
+                        return; 
+                    } 
+                } else { 
+                    Y_FAIL("two slow-workers executing the same pool on the same core"); 
+                    return; // pool is already slow 
+                } 
+            }
+        }
+
+        bool TryBeginHardPreemption(TLease lease) { 
+            return AtomicCas(&CurrentLease, HardPreemptionLease, lease); 
+        } 
+ 
+        void EndHardPreemption(TWorkerId to) { 
+            ATOMIC_COMPILER_BARRIER(); 
+            if (!AtomicCas(&CurrentLease, TLease(to, NeverExpire), HardPreemptionLease)) { 
+                Y_FAIL("hard preemption failed"); 
+            } 
+        } 
+ 
+        bool DisablePreemptionAndTryExtend(TLease lease) { 
+            return AtomicCas(&CurrentLease, lease.NeverExpire(), lease); 
+        } 
+ 
+        void EnablePreemptionAndGrant(TLease lease) { 
+            ATOMIC_COMPILER_BARRIER(); 
+            if (!AtomicCas(&CurrentLease, lease, lease.NeverExpire())) { 
+                Y_FAIL("lease grant failed"); 
+            } 
+        } 
+ 
+        void FastWorkerSleep(ui64 deadlineTs) { 
+            while (true) { 
+                TPoolsMask slow = AtomicLoad(&SlowPoolsMask); 
+                if ((slow & WaitPoolsFlag) == 0) { 
+                    return; // woken by WakeFast action 
                 }
-            }
-        }
-
-        void SetPoolIsSlowFlag(TPoolId pool) {
-            while (true) {
-                TPoolsMask slow = AtomicLoad(&SlowPoolsMask);
-                if ((slow & (1ull << pool)) == 0) { // if pool is fast
-                    if (AtomicCas(&SlowPoolsMask, slow | (1ull << pool), slow)) { // set pool-is-slow flag
-                        return;
-                    }
-                } else {
-                    Y_FAIL("two slow-workers executing the same pool on the same core");
-                    return; // pool is already slow
+                ui64 ts = GetCycleCountFast(); 
+                if (deadlineTs <= ts) { 
+                    if (AtomicCas(&SlowPoolsMask, slow & ~WaitPoolsFlag, slow)) { // try reset wait flag 
+                        return; // wait flag has been successfully reset after timeout 
+                    } 
+                } else { // should wait 
+                    ui64 timeoutNs = Ts2Ns(deadlineTs - ts); 
+#ifdef _linux_ 
+                    timespec timeout; 
+                    timeout.tv_sec = timeoutNs / 1'000'000'000; 
+                    timeout.tv_nsec = timeoutNs % 1'000'000'000; 
+                    SysFutex(FastWorkerFutex(), FUTEX_WAIT_PRIVATE, FastWorkerFutexValue(slow), &timeout, nullptr, 0); 
+#else 
+                    NanoSleep(timeoutNs); // non-linux wake is not supported, cpu will go idle on slow -> fast switch 
+#endif 
                 }
-            }
-        }
-
-        bool TryBeginHardPreemption(TLease lease) {
-            return AtomicCas(&CurrentLease, HardPreemptionLease, lease);
-        }
-
-        void EndHardPreemption(TWorkerId to) {
-            ATOMIC_COMPILER_BARRIER();
-            if (!AtomicCas(&CurrentLease, TLease(to, NeverExpire), HardPreemptionLease)) {
-                Y_FAIL("hard preemption failed");
-            }
-        }
-
-        bool DisablePreemptionAndTryExtend(TLease lease) {
-            return AtomicCas(&CurrentLease, lease.NeverExpire(), lease);
-        }
-
-        void EnablePreemptionAndGrant(TLease lease) {
-            ATOMIC_COMPILER_BARRIER();
-            if (!AtomicCas(&CurrentLease, lease, lease.NeverExpire())) {
-                Y_FAIL("lease grant failed");
-            }
-        }
-
-        void FastWorkerSleep(ui64 deadlineTs) {
-            while (true) {
-                TPoolsMask slow = AtomicLoad(&SlowPoolsMask);
-                if ((slow & WaitPoolsFlag) == 0) {
-                    return; // woken by WakeFast action
-                }
-                ui64 ts = GetCycleCountFast();
-                if (deadlineTs <= ts) {
-                    if (AtomicCas(&SlowPoolsMask, slow & ~WaitPoolsFlag, slow)) { // try reset wait flag
-                        return; // wait flag has been successfully reset after timeout
+            } 
+        }
+
+        void WakeFastWorker() { 
+#ifdef _linux_ 
+            SysFutex(FastWorkerFutex(), FUTEX_WAKE_PRIVATE, 1, nullptr, nullptr, 0); 
+#endif 
+        } 
+
+#ifdef _linux_ 
+        ui32* FastWorkerFutex() { 
+            // Actually we wait on one highest bit, but futex value size is 4 bytes on all platforms 
+            static_assert(sizeof(TPoolsMask) >= 4, "cannot be used as futex value on linux"); 
+            return (ui32*)&SlowPoolsMask + 1; // higher 32 bits (little endian assumed) 
+        } 
+ 
+        ui32 FastWorkerFutexValue(TPoolsMask slow) { 
+            return ui32(slow >> 32); // higher 32 bits 
+        } 
+#endif 
+ 
+        void SetPriority(TThreadId tid, EPriority priority) { 
+            if (Config.NoRealtime) { 
+                return; 
+            } 
+#ifdef _linux_ 
+            int policy; 
+            struct sched_param param; 
+            switch (priority) { 
+            case IdlePriority: 
+                policy = SCHED_FIFO; 
+                param.sched_priority = Config.IdleWorkerPriority; 
+                break; 
+            case FastPriority: 
+                policy = SCHED_FIFO; 
+                param.sched_priority = Config.FastWorkerPriority; 
+                break; 
+            case SlowPriority: 
+                policy = SCHED_OTHER; 
+                param.sched_priority = 0; 
+                break; 
+            } 
+            int ret = sched_setscheduler(tid, policy, &param); 
+            switch (ret) { 
+                case 0: return; 
+                case EINVAL: 
+                    Y_FAIL("sched_setscheduler(%" PRIu64 ", %d, %d) -> EINVAL", tid, policy, param.sched_priority); 
+                case EPERM: 
+                    // Requirements: 
+                    //  * CAP_SYS_NICE capability to run real-time processes and set cpu affinity. 
+                    //    Either run under root or set application capabilities: 
+                    //       sudo setcap cap_sys_nice=eip BINARY 
+                    //  * Non-zero rt-runtime (in case cgroups are used). 
+                    //    Either (a) disable global limit on RT processes bandwidth: 
+                    //       sudo sysctl -w kernel.sched_rt_runtime_us=-1 
+                    //    Or (b) set non-zero rt-runtime for your cgroup: 
+                    //       echo -1 > /sys/fs/cgroup/cpu/[cgroup]/cpu.rt_runtime_us 
+                    //       (also set the same value for every parent cgroup) 
+                    //    https://www.kernel.org/doc/Documentation/scheduler/sched-rt-group.txt 
+                    Y_FAIL("sched_setscheduler(%" PRIu64 ", %d, %d) -> EPERM", tid, policy, param.sched_priority); 
+                case ESRCH: 
+                    Y_FAIL("sched_setscheduler(%" PRIu64 ", %d, %d) -> ESRCH", tid, policy, param.sched_priority); 
+                default: 
+                    Y_FAIL("sched_setscheduler(%" PRIu64 ", %d, %d) -> %d", tid, policy, param.sched_priority, ret); 
+            } 
+#else 
+            Y_UNUSED(tid); 
+            Y_UNUSED(priority); 
+#endif 
+        } 
+ 
+        void ResetPreemption(TWorkerId fastWorkerId, ui64 ts) { 
+            if (Y_UNLIKELY(!PreemptionTimer)) { 
+                return; 
+            } 
+            if (FastWorker == fastWorkerId && HardPreemptionTs > 0) { 
+                PreemptionTimer->Reset(); 
+                LWPROBE(ResetPreemptionTimer, Config.CpuId, FastWorker, PreemptionTimer->Fd, Ts2Ms(ts), Ts2Ms(HardPreemptionTs)); 
+                HardPreemptionTs = 0; 
+            } 
+        } 
+ 
+        TLease PostponePreemption(TWorkerId fastWorkerId, ui64 ts) { 
+            // Select new timer after hard preemption 
+            if (FastWorker != fastWorkerId) { 
+                FastWorker = fastWorkerId; 
+                PreemptionTimer = IdleQueue.Dequeue(); 
+                HardPreemptionTs = 0; 
+            } 
+ 
+            ui64 hardPreemptionTs = ts + Config.HardLimitTs; 
+            if (hardPreemptionTs > HardPreemptionTs) { 
+                // Reset timer (at most once in TickIntervalTs, sacrifice precision) 
+                HardPreemptionTs = hardPreemptionTs + Config.LimitPrecisionTs; 
+                PreemptionTimer->Set(HardPreemptionTs); 
+                LWPROBE(SetPreemptionTimer, Config.CpuId, FastWorker, PreemptionTimer->Fd, Ts2Ms(ts), Ts2Ms(HardPreemptionTs)); 
+            } 
+ 
+            return TLease(fastWorkerId, hardPreemptionTs); 
+        } 
+    }; 
+ 
+    // Proxy for start and switching TUnitedExecutorPool-s on single cpu via GetReadyActivation() 
+    // (does not implement any other method in IExecutorPool) 
+    class TCpuExecutorPool: public IExecutorPool { 
+        const TString Name; 
+ 
+    public: 
+        explicit TCpuExecutorPool(const TString& name) 
+            : IExecutorPool(MaxPools) 
+            , Name(name) 
+        {} 
+ 
+        TString GetName() const override { 
+            return Name; 
+        } 
+ 
+        void SetRealTimeMode() const override { 
+            // derived classes controls rt-priority - do nothing 
+        } 
+ 
+        // Should never be called 
+        void ReclaimMailbox(TMailboxType::EType, ui32, TWorkerId, ui64) override { Y_FAIL(); } 
+        void Schedule(TInstant, TAutoPtr<IEventHandle>, ISchedulerCookie*, TWorkerId) override { Y_FAIL(); } 
+        void Schedule(TMonotonic, TAutoPtr<IEventHandle>, ISchedulerCookie*, TWorkerId) override { Y_FAIL(); } 
+        void Schedule(TDuration, TAutoPtr<IEventHandle>, ISchedulerCookie*, TWorkerId) override { Y_FAIL(); } 
+        bool Send(TAutoPtr<IEventHandle>&) override { Y_FAIL(); } 
+        void ScheduleActivation(ui32) override { Y_FAIL(); } 
+        void ScheduleActivationEx(ui32, ui64) override { Y_FAIL(); } 
+        TActorId Register(IActor*, TMailboxType::EType, ui64, const TActorId&) override { Y_FAIL(); } 
+        TActorId Register(IActor*, TMailboxHeader*, ui32, const TActorId&) override { Y_FAIL(); } 
+        void Prepare(TActorSystem*, NSchedulerQueue::TReader**, ui32*) override { Y_FAIL(); } 
+        void Start() override { Y_FAIL(); } 
+        void PrepareStop() override { Y_FAIL(); } 
+        void Shutdown() override { Y_FAIL(); } 
+        bool Cleanup() override { Y_FAIL(); } 
+    }; 
+ 
+    // Proxy executor pool working with cpu-local scheduler (aka actorsystem 2.0) 
+    class TSharedCpuExecutorPool: public TCpuExecutorPool { 
+        TSharedCpu* Local; 
+        TIntrusivePtr<TAffinity> SingleCpuAffinity; // no migration support yet 
+    public: 
+        explicit TSharedCpuExecutorPool(TSharedCpu* local, const TUnitedWorkersConfig& config) 
+            : TCpuExecutorPool("u-" + ToString(local->Config.CpuId)) 
+            , Local(local) 
+            , SingleCpuAffinity(config.NoAffinity ? nullptr : new TAffinity(TCpuMask(local->Config.CpuId))) 
+        {} 
+ 
+        TAffinity* Affinity() const override { 
+            return SingleCpuAffinity.Get(); 
+        } 
+ 
+        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) override { 
+            return Local->GetReadyActivation(wctx, revolvingCounter); 
+        } 
+    }; 
+ 
+    // Proxy executor pool working with balancer and assigned pools (aka actorsystem 1.5) 
+    class TAssignedCpuExecutorPool: public TCpuExecutorPool { 
+        TAssignedCpu* Local; 
+        TIntrusivePtr<TAffinity> CpuAffinity; 
+    public: 
+        explicit TAssignedCpuExecutorPool(TAssignedCpu* local, const TUnitedWorkersConfig& config) 
+            : TCpuExecutorPool("United") 
+            , Local(local) 
+            , CpuAffinity(config.NoAffinity ? nullptr : new TAffinity(config.Allowed)) 
+        {} 
+ 
+        TAffinity* Affinity() const override { 
+            return CpuAffinity.Get(); 
+        } 
+ 
+        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) override { 
+            return Local->GetReadyActivation(wctx, revolvingCounter); 
+        } 
+    }; 
+ 
+    // Representation of a single cpu and it's state visible to other cpus and pools 
+    struct TUnitedWorkers::TCpu: public TNonCopyable { 
+        struct TScopedWaiters { 
+            TCpu& Cpu; 
+            TPool* AssignedPool; // nullptr if CpuShared 
+ 
+            // Subscribe on wakeups from allowed pools 
+            TScopedWaiters(TCpu& cpu, TPool* assignedPool) : Cpu(cpu), AssignedPool(assignedPool) { 
+                if (!AssignedPool) { 
+                    for (TPool* pool : Cpu.AllowedPools) { 
+                        AtomicIncrement(pool->Waiters); 
+                    } 
+                } else { 
+                    AtomicIncrement(AssignedPool->Waiters); 
+                } 
+            } 
+ 
+            // Unsubscribe from pools we've subscribed on 
+            ~TScopedWaiters() { 
+                if (!AssignedPool) { 
+                    for (TPool* pool : Cpu.AllowedPools) { 
+                        AtomicDecrement(pool->Waiters); 
+                    } 
+                } else { 
+                    AtomicDecrement(AssignedPool->Waiters); 
+                } 
+            } 
+        }; 
+ 
+        // Current cpu state important for other cpus and balancer 
+        TCpuState State; 
+ 
+        // Thread-safe per pool stats 
+        // NOTE: It's guaranteed that cpu never executes two instance of the same pool 
+        TVector<TExecutorThreadStats> PoolStats; 
+ 
+        // Configuration 
+        TCpuId CpuId; 
+        THolder<TCpuLocalManager> LocalManager; 
+        THolder<TCpuExecutorPool> ExecutorPool; 
+ 
+        // Pools allowed to run on this cpu 
+        TStackVec<TPool*, 15> AllowedPools; 
+ 
+        void Stop() { 
+            if (LocalManager) { 
+                State.Stop(); 
+                LocalManager->Stop(); 
+            } 
+        } 
+ 
+        bool StartSpinning(TUnitedWorkers* united, TPool* assignedPool, TPoolId& result) { 
+            // Mark cpu as idle 
+            if (Y_UNLIKELY(!State.StartSpinning())) { 
+                result = CpuStopped; 
+                return true; 
+            } 
+ 
+            // Avoid using multiple atomic seq_cst loads in cycle, use barrier once and relaxed ops 
+            AtomicBarrier(); 
+ 
+            // Check there is no pending tokens (can be released before Waiters increment) 
+            if (!assignedPool) { 
+                for (TPool* pool : AllowedPools) { 
+                    if (pool->TryAcquireTokenRelaxed()) { 
+                        result = WakeWithTokenAcquired(united, pool->PoolId); 
+                        return true; // token acquired or stop 
                     }
-                } else { // should wait
-                    ui64 timeoutNs = Ts2Ns(deadlineTs - ts);
-#ifdef _linux_
-                    timespec timeout;
-                    timeout.tv_sec = timeoutNs / 1'000'000'000;
-                    timeout.tv_nsec = timeoutNs % 1'000'000'000;
-                    SysFutex(FastWorkerFutex(), FUTEX_WAIT_PRIVATE, FastWorkerFutexValue(slow), &timeout, nullptr, 0);
-#else
-                    NanoSleep(timeoutNs); // non-linux wake is not supported, cpu will go idle on slow -> fast switch
-#endif
-                }
-            }
-        }
-
-        void WakeFastWorker() {
-#ifdef _linux_
-            SysFutex(FastWorkerFutex(), FUTEX_WAKE_PRIVATE, 1, nullptr, nullptr, 0);
-#endif
-        }
-
-#ifdef _linux_
-        ui32* FastWorkerFutex() {
-            // Actually we wait on one highest bit, but futex value size is 4 bytes on all platforms
-            static_assert(sizeof(TPoolsMask) >= 4, "cannot be used as futex value on linux");
-            return (ui32*)&SlowPoolsMask + 1; // higher 32 bits (little endian assumed)
-        }
-
-        ui32 FastWorkerFutexValue(TPoolsMask slow) {
-            return ui32(slow >> 32); // higher 32 bits
-        }
-#endif
-
-        void SetPriority(TThreadId tid, EPriority priority) {
-            if (Config.NoRealtime) {
-                return;
-            }
-#ifdef _linux_
-            int policy;
-            struct sched_param param;
-            switch (priority) {
-            case IdlePriority:
-                policy = SCHED_FIFO;
-                param.sched_priority = Config.IdleWorkerPriority;
-                break;
-            case FastPriority:
-                policy = SCHED_FIFO;
-                param.sched_priority = Config.FastWorkerPriority;
-                break;
-            case SlowPriority:
-                policy = SCHED_OTHER;
-                param.sched_priority = 0;
-                break;
-            }
-            int ret = sched_setscheduler(tid, policy, &param);
-            switch (ret) {
-                case 0: return;
-                case EINVAL:
-                    Y_FAIL("sched_setscheduler(%" PRIu64 ", %d, %d) -> EINVAL", tid, policy, param.sched_priority);
-                case EPERM:
-                    // Requirements:
-                    //  * CAP_SYS_NICE capability to run real-time processes and set cpu affinity.
-                    //    Either run under root or set application capabilities:
-                    //       sudo setcap cap_sys_nice=eip BINARY
-                    //  * Non-zero rt-runtime (in case cgroups are used).
-                    //    Either (a) disable global limit on RT processes bandwidth:
-                    //       sudo sysctl -w kernel.sched_rt_runtime_us=-1
-                    //    Or (b) set non-zero rt-runtime for your cgroup:
-                    //       echo -1 > /sys/fs/cgroup/cpu/[cgroup]/cpu.rt_runtime_us
-                    //       (also set the same value for every parent cgroup)
-                    //    https://www.kernel.org/doc/Documentation/scheduler/sched-rt-group.txt
-                    Y_FAIL("sched_setscheduler(%" PRIu64 ", %d, %d) -> EPERM", tid, policy, param.sched_priority);
-                case ESRCH:
-                    Y_FAIL("sched_setscheduler(%" PRIu64 ", %d, %d) -> ESRCH", tid, policy, param.sched_priority);
-                default:
-                    Y_FAIL("sched_setscheduler(%" PRIu64 ", %d, %d) -> %d", tid, policy, param.sched_priority, ret);
-            }
-#else
-            Y_UNUSED(tid);
-            Y_UNUSED(priority);
-#endif
-        }
-
-        void ResetPreemption(TWorkerId fastWorkerId, ui64 ts) {
-            if (Y_UNLIKELY(!PreemptionTimer)) {
-                return;
-            }
-            if (FastWorker == fastWorkerId && HardPreemptionTs > 0) {
-                PreemptionTimer->Reset();
-                LWPROBE(ResetPreemptionTimer, Config.CpuId, FastWorker, PreemptionTimer->Fd, Ts2Ms(ts), Ts2Ms(HardPreemptionTs));
-                HardPreemptionTs = 0;
-            }
-        }
-
-        TLease PostponePreemption(TWorkerId fastWorkerId, ui64 ts) {
-            // Select new timer after hard preemption
-            if (FastWorker != fastWorkerId) {
-                FastWorker = fastWorkerId;
-                PreemptionTimer = IdleQueue.Dequeue();
-                HardPreemptionTs = 0;
-            }
-
-            ui64 hardPreemptionTs = ts + Config.HardLimitTs;
-            if (hardPreemptionTs > HardPreemptionTs) {
-                // Reset timer (at most once in TickIntervalTs, sacrifice precision)
-                HardPreemptionTs = hardPreemptionTs + Config.LimitPrecisionTs;
-                PreemptionTimer->Set(HardPreemptionTs);
-                LWPROBE(SetPreemptionTimer, Config.CpuId, FastWorker, PreemptionTimer->Fd, Ts2Ms(ts), Ts2Ms(HardPreemptionTs));
-            }
-
-            return TLease(fastWorkerId, hardPreemptionTs);
-        }
-    };
-
-    // Proxy for start and switching TUnitedExecutorPool-s on single cpu via GetReadyActivation()
-    // (does not implement any other method in IExecutorPool)
-    class TCpuExecutorPool: public IExecutorPool {
-        const TString Name;
-
-    public:
-        explicit TCpuExecutorPool(const TString& name)
-            : IExecutorPool(MaxPools)
-            , Name(name)
-        {}
-
-        TString GetName() const override {
-            return Name;
-        }
-
-        void SetRealTimeMode() const override {
-            // derived classes controls rt-priority - do nothing
-        }
-
-        // Should never be called
-        void ReclaimMailbox(TMailboxType::EType, ui32, TWorkerId, ui64) override { Y_FAIL(); }
-        void Schedule(TInstant, TAutoPtr<IEventHandle>, ISchedulerCookie*, TWorkerId) override { Y_FAIL(); }
-        void Schedule(TMonotonic, TAutoPtr<IEventHandle>, ISchedulerCookie*, TWorkerId) override { Y_FAIL(); }
-        void Schedule(TDuration, TAutoPtr<IEventHandle>, ISchedulerCookie*, TWorkerId) override { Y_FAIL(); }
-        bool Send(TAutoPtr<IEventHandle>&) override { Y_FAIL(); }
-        void ScheduleActivation(ui32) override { Y_FAIL(); }
-        void ScheduleActivationEx(ui32, ui64) override { Y_FAIL(); }
-        TActorId Register(IActor*, TMailboxType::EType, ui64, const TActorId&) override { Y_FAIL(); }
-        TActorId Register(IActor*, TMailboxHeader*, ui32, const TActorId&) override { Y_FAIL(); }
-        void Prepare(TActorSystem*, NSchedulerQueue::TReader**, ui32*) override { Y_FAIL(); }
-        void Start() override { Y_FAIL(); }
-        void PrepareStop() override { Y_FAIL(); }
-        void Shutdown() override { Y_FAIL(); }
-        bool Cleanup() override { Y_FAIL(); }
-    };
-
-    // Proxy executor pool working with cpu-local scheduler (aka actorsystem 2.0)
-    class TSharedCpuExecutorPool: public TCpuExecutorPool {
-        TSharedCpu* Local;
-        TIntrusivePtr<TAffinity> SingleCpuAffinity; // no migration support yet
-    public:
-        explicit TSharedCpuExecutorPool(TSharedCpu* local, const TUnitedWorkersConfig& config)
-            : TCpuExecutorPool("u-" + ToString(local->Config.CpuId))
-            , Local(local)
-            , SingleCpuAffinity(config.NoAffinity ? nullptr : new TAffinity(TCpuMask(local->Config.CpuId)))
-        {}
-
-        TAffinity* Affinity() const override {
-            return SingleCpuAffinity.Get();
-        }
-
-        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) override {
-            return Local->GetReadyActivation(wctx, revolvingCounter);
-        }
-    };
-
-    // Proxy executor pool working with balancer and assigned pools (aka actorsystem 1.5)
-    class TAssignedCpuExecutorPool: public TCpuExecutorPool {
-        TAssignedCpu* Local;
-        TIntrusivePtr<TAffinity> CpuAffinity;
-    public:
-        explicit TAssignedCpuExecutorPool(TAssignedCpu* local, const TUnitedWorkersConfig& config)
-            : TCpuExecutorPool("United")
-            , Local(local)
-            , CpuAffinity(config.NoAffinity ? nullptr : new TAffinity(config.Allowed))
-        {}
-
-        TAffinity* Affinity() const override {
-            return CpuAffinity.Get();
-        }
-
-        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) override {
-            return Local->GetReadyActivation(wctx, revolvingCounter);
-        }
-    };
-
-    // Representation of a single cpu and it's state visible to other cpus and pools
-    struct TUnitedWorkers::TCpu: public TNonCopyable {
-        struct TScopedWaiters {
-            TCpu& Cpu;
-            TPool* AssignedPool; // nullptr if CpuShared
-
-            // Subscribe on wakeups from allowed pools
-            TScopedWaiters(TCpu& cpu, TPool* assignedPool) : Cpu(cpu), AssignedPool(assignedPool) {
-                if (!AssignedPool) {
-                    for (TPool* pool : Cpu.AllowedPools) {
-                        AtomicIncrement(pool->Waiters);
+                } 
+            } else { 
+                if (assignedPool->TryAcquireTokenRelaxed()) { 
+                    result = WakeWithTokenAcquired(united, assignedPool->PoolId); 
+                    return true; // token acquired or stop 
+                } 
+            } 
+ 
+            // At this point we can be sure wakeup won't be lost 
+            // So we can actively spin or block w/o checking for pending tokens 
+            return false; 
+        } 
+ 
+        bool ActiveWait(ui64 spinThresholdTs, TPoolId& result) { 
+            ui64 deadline = GetCycleCountFast() + spinThresholdTs; 
+            while (GetCycleCountFast() < deadline) { 
+                for (ui32 i = 0; i < 12; ++i) { 
+                    TPoolId current = State.CurrentPool(); 
+                    if (current == CpuSpinning) { 
+                        SpinLockPause(); 
+                    } else { 
+                        result = current; 
+                        return true; // wakeup 
                     }
-                } else {
-                    AtomicIncrement(AssignedPool->Waiters);
-                }
-            }
-
-            // Unsubscribe from pools we've subscribed on
-            ~TScopedWaiters() {
-                if (!AssignedPool) {
-                    for (TPool* pool : Cpu.AllowedPools) {
-                        AtomicDecrement(pool->Waiters);
-                    }
-                } else {
-                    AtomicDecrement(AssignedPool->Waiters);
-                }
-            }
-        };
-
-        // Current cpu state important for other cpus and balancer
-        TCpuState State;
-
-        // Thread-safe per pool stats
-        // NOTE: It's guaranteed that cpu never executes two instance of the same pool
-        TVector<TExecutorThreadStats> PoolStats;
-
-        // Configuration
-        TCpuId CpuId;
-        THolder<TCpuLocalManager> LocalManager;
-        THolder<TCpuExecutorPool> ExecutorPool;
-
-        // Pools allowed to run on this cpu
-        TStackVec<TPool*, 15> AllowedPools;
-
-        void Stop() {
-            if (LocalManager) {
-                State.Stop();
-                LocalManager->Stop();
-            }
-        }
-
-        bool StartSpinning(TUnitedWorkers* united, TPool* assignedPool, TPoolId& result) {
-            // Mark cpu as idle
-            if (Y_UNLIKELY(!State.StartSpinning())) {
-                result = CpuStopped;
-                return true;
-            }
-
-            // Avoid using multiple atomic seq_cst loads in cycle, use barrier once and relaxed ops
-            AtomicBarrier();
-
-            // Check there is no pending tokens (can be released before Waiters increment)
-            if (!assignedPool) {
-                for (TPool* pool : AllowedPools) {
-                    if (pool->TryAcquireTokenRelaxed()) {
-                        result = WakeWithTokenAcquired(united, pool->PoolId);
-                        return true; // token acquired or stop
-                    }
-                }
-            } else {
-                if (assignedPool->TryAcquireTokenRelaxed()) {
-                    result = WakeWithTokenAcquired(united, assignedPool->PoolId);
-                    return true; // token acquired or stop
-                }
-            }
-
-            // At this point we can be sure wakeup won't be lost
-            // So we can actively spin or block w/o checking for pending tokens
-            return false;
-        }
-
-        bool ActiveWait(ui64 spinThresholdTs, TPoolId& result) {
-            ui64 deadline = GetCycleCountFast() + spinThresholdTs;
-            while (GetCycleCountFast() < deadline) {
-                for (ui32 i = 0; i < 12; ++i) {
-                    TPoolId current = State.CurrentPool();
-                    if (current == CpuSpinning) {
-                        SpinLockPause();
-                    } else {
-                        result = current;
-                        return true; // wakeup
-                    }
-                }
-            }
-            return false; // spin threshold exceeded, no wakeups
-        }
-
-        bool StartBlocking(TPoolId& result) {
-            // Switch into blocked state
-            if (State.StartBlocking()) {
-                result = State.CurrentPool();
-                return true;
-            } else {
-                return false;
-            }
-        }
-
-        bool BlockedWait(TPoolId& result, ui64 timeoutNs) {
-            return State.Block(timeoutNs, result);
-        }
-
-        void SwitchPool(TPoolId pool) {
-            return State.SwitchPool(pool);
-        }
-
-    private:
-        TPoolId WakeWithTokenAcquired(TUnitedWorkers* united, TPoolId token) {
-            switch (State.WakeWithTokenAcquired(token)) {
-            case TCpuState::Woken: // we've got token and successfully woken up this cpu
-                // NOTE: sending thread may also wakeup another worker, which wont be able to acquire token and will go idle (it's ok)
-                return token;
-            case TCpuState::NotIdle: { // wakeup event has also occured
-                TPoolId wakeup = State.CurrentPool();
-                if (wakeup != token) { // token and wakeup for different pools
-                    united->TryWake(wakeup); // rewake another cpu to avoid losing wakeup
-                }
-                return token;
-            }
-            case TCpuState::Forbidden:
-                Y_FAIL();
-            case TCpuState::Stopped:
-                return CpuStopped;
-            }
-        }
-    };
-
-    TUnitedWorkers::TUnitedWorkers(
-            const TUnitedWorkersConfig& config,
-            const TVector<TUnitedExecutorPoolConfig>& unitedPools,
-            const TCpuAllocationConfig& allocation,
-            IBalancer* balancer)
-        : Balancer(balancer)
-        , Config(config)
-        , Allocation(allocation)
-    {
-        // Find max pool id and initialize pools
-        PoolCount = 0;
-        for (const TCpuAllocation& cpuAlloc : allocation.Items) {
-            for (const auto& pa : cpuAlloc.AllowedPools) {
-                PoolCount = Max<size_t>(PoolCount, pa.PoolId + 1);
-            }
-        }
-        Pools.Reset(new TPool[PoolCount]);
-
-        // Find max cpu id and initialize cpus
-        CpuCount = 0;
-        for (const TCpuAllocation& cpuAlloc : allocation.Items) {
-            CpuCount = Max<size_t>(CpuCount, cpuAlloc.CpuId + 1);
-        }
-        Cpus.Reset(new TCpu[CpuCount]);
-
-        // Setup allocated cpus
-        // NOTE: leave gaps for not allocated cpus (default-initialized)
-        WorkerCount = 0;
-        for (const TCpuAllocation& cpuAlloc : allocation.Items) {
-            TCpu& cpu = Cpus[cpuAlloc.CpuId];
-            cpu.CpuId = cpuAlloc.CpuId;
-            cpu.PoolStats.resize(PoolCount); // NOTE: also may have gaps
-            for (const auto& pa : cpuAlloc.AllowedPools) {
-                cpu.AllowedPools.emplace_back(&Pools[pa.PoolId]);
-            }
-
-            // Setup balancing and cpu-local manager
-            if (!Balancer->AddCpu(cpuAlloc, &cpu.State)) {
-                cpu.State.SwitchPool(0); // set initial state to non-idle to avoid losing wakeups on start
-                cpu.State.AssignPool(CpuShared);
-                TSharedCpu* local = new TSharedCpu(TSharedCpu::TConfig(cpuAlloc, Config), this);
-                cpu.LocalManager.Reset(local);
-                cpu.ExecutorPool.Reset(new TSharedCpuExecutorPool(local, Config));
-            } else {
-                TAssignedCpu* local = new TAssignedCpu(this);
-                cpu.LocalManager.Reset(local);
-                cpu.ExecutorPool.Reset(new TAssignedCpuExecutorPool(local, Config));
-            }
-            WorkerCount += cpu.LocalManager->WorkerCount();
-        }
-
-        // Initialize workers
-        Workers.Reset(new TWorker[WorkerCount]);
-
-        // Setup pools
-        // NOTE: leave gaps for not united pools (default-initialized)
-        for (const TUnitedExecutorPoolConfig& cfg : unitedPools) {
-            TPool& pool = Pools[cfg.PoolId];
-            Y_VERIFY(cfg.PoolId < MaxPools);
-            pool.PoolId = cfg.PoolId;
-            pool.Concurrency = cfg.Concurrency ? cfg.Concurrency : Config.CpuCount;
-            pool.ExecutorPool = nullptr; // should be set later using SetupPool()
-            pool.MailboxTable = nullptr; // should be set later using SetupPool()
-            pool.TimePerMailboxTs = DurationToCycles(cfg.TimePerMailbox);
-            pool.EventsPerMailbox = cfg.EventsPerMailbox;
-
-            // Reinitialize per cpu pool stats with right MaxActivityType
-            for (const TCpuAllocation& cpuAlloc : allocation.Items) {
-                TCpu& cpu = Cpus[cpuAlloc.CpuId];
-                cpu.PoolStats[cfg.PoolId] = TExecutorThreadStats(cfg.MaxActivityType);
-            }
-
-            // Setup WakeOrderCpus: left to right exclusive cpus, then left to right shared cpus.
-            // Waking exclusive cpus first reduce load on shared cpu and improve latency isolation, which is
-            // the point of using exclusive cpu. But note that number of actively spinning idle cpus may increase,
-            // so cpu consumption on light load is higher.
-            for (const TCpuAllocation& cpuAlloc : allocation.Items) {
-                TCpu& cpu = Cpus[cpuAlloc.CpuId];
-                if (cpu.AllowedPools.size() == 1 && cpu.AllowedPools[0] == &pool) {
-                    pool.WakeOrderCpus.emplace_back(&cpu);
-                }
-            }
-            for (const TCpuAllocation& cpuAlloc : allocation.Items) {
-                TCpu& cpu = Cpus[cpuAlloc.CpuId];
-                if (cpu.AllowedPools.size() > 1 && cpuAlloc.HasPool(pool.PoolId)) {
-                    pool.WakeOrderCpus.emplace_back(&cpu);
-                }
-            }
-        }
-    }
-
-    TUnitedWorkers::~TUnitedWorkers() {
-    }
-
-    void TUnitedWorkers::Prepare(TActorSystem* actorSystem, TVector<NSchedulerQueue::TReader*>& scheduleReaders) {
-        // Setup allocated cpus
-        // NOTE: leave gaps for not allocated cpus (default-initialized)
-        TWorkerId workers = 0;
-        for (TCpuId cpuId = 0; cpuId < CpuCount; cpuId++) {
-            TCpu& cpu = Cpus[cpuId];
-
-            // Setup cpu-local workers
-            if (cpu.LocalManager) {
-                for (size_t i = 0; i < cpu.LocalManager->WorkerCount(); i++) {
-                    TWorkerId workerId = workers++;
-                    cpu.LocalManager->AddWorker(workerId);
-
-                    // Setup worker
-                    Y_VERIFY(workerId < WorkerCount);
-                    Workers[workerId].Thread.Reset(new TExecutorThread(
-                        workerId,
-                        cpu.CpuId,
-                        actorSystem,
-                        cpu.ExecutorPool.Get(), // use cpu-local manager as proxy executor for all workers on cpu
-                        nullptr, // MailboxTable is pool-specific, will be set on pool switch
-                        cpu.ExecutorPool->GetName()));
-                    // NOTE: TWorker::ThreadId will be initialized after in Start()
-
-                    scheduleReaders.push_back(&Workers[workerId].SchedulerQueue.Reader);
-                }
-            }
-        }
-    }
-
-    void TUnitedWorkers::Start() {
-        for (TWorkerId workerId = 0; workerId < WorkerCount; workerId++) {
-            Workers[workerId].Thread->Start();
-        }
-        for (TWorkerId workerId = 0; workerId < WorkerCount; workerId++) {
-            AtomicStore(&Workers[workerId].ThreadId, Workers[workerId].Thread->GetThreadId());
-        }
+                } 
+            }
+            return false; // spin threshold exceeded, no wakeups 
+        }
+
+        bool StartBlocking(TPoolId& result) { 
+            // Switch into blocked state 
+            if (State.StartBlocking()) { 
+                result = State.CurrentPool(); 
+                return true; 
+            } else { 
+                return false; 
+            } 
+        }
+
+        bool BlockedWait(TPoolId& result, ui64 timeoutNs) { 
+            return State.Block(timeoutNs, result); 
+        } 
+
+        void SwitchPool(TPoolId pool) { 
+            return State.SwitchPool(pool); 
+        } 
+ 
+    private: 
+        TPoolId WakeWithTokenAcquired(TUnitedWorkers* united, TPoolId token) { 
+            switch (State.WakeWithTokenAcquired(token)) { 
+            case TCpuState::Woken: // we've got token and successfully woken up this cpu 
+                // NOTE: sending thread may also wakeup another worker, which wont be able to acquire token and will go idle (it's ok) 
+                return token; 
+            case TCpuState::NotIdle: { // wakeup event has also occured 
+                TPoolId wakeup = State.CurrentPool(); 
+                if (wakeup != token) { // token and wakeup for different pools 
+                    united->TryWake(wakeup); // rewake another cpu to avoid losing wakeup 
+                } 
+                return token; 
+            } 
+            case TCpuState::Forbidden: 
+                Y_FAIL(); 
+            case TCpuState::Stopped: 
+                return CpuStopped; 
+            } 
+        }
+    }; 
+
+    TUnitedWorkers::TUnitedWorkers( 
+            const TUnitedWorkersConfig& config, 
+            const TVector<TUnitedExecutorPoolConfig>& unitedPools, 
+            const TCpuAllocationConfig& allocation, 
+            IBalancer* balancer) 
+        : Balancer(balancer) 
+        , Config(config) 
+        , Allocation(allocation) 
+    { 
+        // Find max pool id and initialize pools 
+        PoolCount = 0; 
+        for (const TCpuAllocation& cpuAlloc : allocation.Items) { 
+            for (const auto& pa : cpuAlloc.AllowedPools) { 
+                PoolCount = Max<size_t>(PoolCount, pa.PoolId + 1); 
+            } 
+        } 
+        Pools.Reset(new TPool[PoolCount]); 
+
+        // Find max cpu id and initialize cpus 
+        CpuCount = 0; 
+        for (const TCpuAllocation& cpuAlloc : allocation.Items) { 
+            CpuCount = Max<size_t>(CpuCount, cpuAlloc.CpuId + 1); 
+        } 
+        Cpus.Reset(new TCpu[CpuCount]); 
+
+        // Setup allocated cpus 
+        // NOTE: leave gaps for not allocated cpus (default-initialized) 
+        WorkerCount = 0; 
+        for (const TCpuAllocation& cpuAlloc : allocation.Items) { 
+            TCpu& cpu = Cpus[cpuAlloc.CpuId]; 
+            cpu.CpuId = cpuAlloc.CpuId; 
+            cpu.PoolStats.resize(PoolCount); // NOTE: also may have gaps 
+            for (const auto& pa : cpuAlloc.AllowedPools) { 
+                cpu.AllowedPools.emplace_back(&Pools[pa.PoolId]); 
+            } 
+ 
+            // Setup balancing and cpu-local manager 
+            if (!Balancer->AddCpu(cpuAlloc, &cpu.State)) { 
+                cpu.State.SwitchPool(0); // set initial state to non-idle to avoid losing wakeups on start 
+                cpu.State.AssignPool(CpuShared); 
+                TSharedCpu* local = new TSharedCpu(TSharedCpu::TConfig(cpuAlloc, Config), this); 
+                cpu.LocalManager.Reset(local); 
+                cpu.ExecutorPool.Reset(new TSharedCpuExecutorPool(local, Config)); 
+            } else { 
+                TAssignedCpu* local = new TAssignedCpu(this); 
+                cpu.LocalManager.Reset(local); 
+                cpu.ExecutorPool.Reset(new TAssignedCpuExecutorPool(local, Config)); 
+            } 
+            WorkerCount += cpu.LocalManager->WorkerCount(); 
+        } 
+ 
+        // Initialize workers 
+        Workers.Reset(new TWorker[WorkerCount]); 
+ 
+        // Setup pools 
+        // NOTE: leave gaps for not united pools (default-initialized) 
+        for (const TUnitedExecutorPoolConfig& cfg : unitedPools) { 
+            TPool& pool = Pools[cfg.PoolId]; 
+            Y_VERIFY(cfg.PoolId < MaxPools); 
+            pool.PoolId = cfg.PoolId; 
+            pool.Concurrency = cfg.Concurrency ? cfg.Concurrency : Config.CpuCount; 
+            pool.ExecutorPool = nullptr; // should be set later using SetupPool() 
+            pool.MailboxTable = nullptr; // should be set later using SetupPool() 
+            pool.TimePerMailboxTs = DurationToCycles(cfg.TimePerMailbox); 
+            pool.EventsPerMailbox = cfg.EventsPerMailbox; 
+ 
+            // Reinitialize per cpu pool stats with right MaxActivityType 
+            for (const TCpuAllocation& cpuAlloc : allocation.Items) { 
+                TCpu& cpu = Cpus[cpuAlloc.CpuId]; 
+                cpu.PoolStats[cfg.PoolId] = TExecutorThreadStats(cfg.MaxActivityType); 
+            } 
+ 
+            // Setup WakeOrderCpus: left to right exclusive cpus, then left to right shared cpus. 
+            // Waking exclusive cpus first reduce load on shared cpu and improve latency isolation, which is 
+            // the point of using exclusive cpu. But note that number of actively spinning idle cpus may increase, 
+            // so cpu consumption on light load is higher. 
+            for (const TCpuAllocation& cpuAlloc : allocation.Items) { 
+                TCpu& cpu = Cpus[cpuAlloc.CpuId]; 
+                if (cpu.AllowedPools.size() == 1 && cpu.AllowedPools[0] == &pool) { 
+                    pool.WakeOrderCpus.emplace_back(&cpu); 
+                } 
+            } 
+            for (const TCpuAllocation& cpuAlloc : allocation.Items) { 
+                TCpu& cpu = Cpus[cpuAlloc.CpuId]; 
+                if (cpu.AllowedPools.size() > 1 && cpuAlloc.HasPool(pool.PoolId)) { 
+                    pool.WakeOrderCpus.emplace_back(&cpu); 
+                } 
+            } 
+        } 
     }
 
-    inline TThreadId TUnitedWorkers::GetWorkerThreadId(TWorkerId workerId) const {
-        volatile TThreadId* threadId = &Workers[workerId].ThreadId;
-#ifdef _linux_
-        while (AtomicLoad(threadId) == UnknownThreadId) {
-            NanoSleep(1000);
+    TUnitedWorkers::~TUnitedWorkers() { 
+    } 
+
+    void TUnitedWorkers::Prepare(TActorSystem* actorSystem, TVector<NSchedulerQueue::TReader*>& scheduleReaders) { 
+        // Setup allocated cpus 
+        // NOTE: leave gaps for not allocated cpus (default-initialized) 
+        TWorkerId workers = 0; 
+        for (TCpuId cpuId = 0; cpuId < CpuCount; cpuId++) { 
+            TCpu& cpu = Cpus[cpuId]; 
+
+            // Setup cpu-local workers 
+            if (cpu.LocalManager) { 
+                for (size_t i = 0; i < cpu.LocalManager->WorkerCount(); i++) { 
+                    TWorkerId workerId = workers++; 
+                    cpu.LocalManager->AddWorker(workerId); 
+ 
+                    // Setup worker 
+                    Y_VERIFY(workerId < WorkerCount); 
+                    Workers[workerId].Thread.Reset(new TExecutorThread( 
+                        workerId, 
+                        cpu.CpuId, 
+                        actorSystem, 
+                        cpu.ExecutorPool.Get(), // use cpu-local manager as proxy executor for all workers on cpu 
+                        nullptr, // MailboxTable is pool-specific, will be set on pool switch 
+                        cpu.ExecutorPool->GetName())); 
+                    // NOTE: TWorker::ThreadId will be initialized after in Start() 
+ 
+                    scheduleReaders.push_back(&Workers[workerId].SchedulerQueue.Reader); 
+                } 
+            } 
         }
-#endif
-        return AtomicLoad(threadId);
-    }
-
-    inline NSchedulerQueue::TWriter* TUnitedWorkers::GetScheduleWriter(TWorkerId workerId) const {
-        return &Workers[workerId].SchedulerQueue.Writer;
-    }
-
-    void TUnitedWorkers::SetupPool(TPoolId pool, IExecutorPool* executorPool, TMailboxTable* mailboxTable) {
-        Pools[pool].ExecutorPool = executorPool;
-        Pools[pool].MailboxTable = mailboxTable;
     }
 
-    void TUnitedWorkers::PrepareStop() {
+    void TUnitedWorkers::Start() { 
+        for (TWorkerId workerId = 0; workerId < WorkerCount; workerId++) { 
+            Workers[workerId].Thread->Start(); 
+        } 
+        for (TWorkerId workerId = 0; workerId < WorkerCount; workerId++) { 
+            AtomicStore(&Workers[workerId].ThreadId, Workers[workerId].Thread->GetThreadId()); 
+        } 
+    } 
+ 
+    inline TThreadId TUnitedWorkers::GetWorkerThreadId(TWorkerId workerId) const { 
+        volatile TThreadId* threadId = &Workers[workerId].ThreadId; 
+#ifdef _linux_ 
+        while (AtomicLoad(threadId) == UnknownThreadId) { 
+            NanoSleep(1000); 
+        } 
+#endif 
+        return AtomicLoad(threadId); 
+    } 
+ 
+    inline NSchedulerQueue::TWriter* TUnitedWorkers::GetScheduleWriter(TWorkerId workerId) const { 
+        return &Workers[workerId].SchedulerQueue.Writer; 
+    } 
+ 
+    void TUnitedWorkers::SetupPool(TPoolId pool, IExecutorPool* executorPool, TMailboxTable* mailboxTable) { 
+        Pools[pool].ExecutorPool = executorPool; 
+        Pools[pool].MailboxTable = mailboxTable; 
+    } 
+ 
+    void TUnitedWorkers::PrepareStop() { 
         AtomicStore(&StopFlag, true);
-        for (TPoolId pool = 0; pool < PoolCount; pool++) {
-            Pools[pool].Stop();
-        }
-        for (TCpuId cpuId = 0; cpuId < CpuCount; cpuId++) {
-            Cpus[cpuId].Stop();
-        }
-    }
-
-    void TUnitedWorkers::Shutdown() {
-        for (TWorkerId workerId = 0; workerId < WorkerCount; workerId++) {
-            Workers[workerId].Thread->Join();
-        }
-    }
-
-    inline void TUnitedWorkers::PushActivation(TPoolId pool, ui32 activation, ui64 revolvingCounter) {
-        if (Pools[pool].PushActivation(activation, revolvingCounter)) { // token generated
-            TryWake(pool);
+        for (TPoolId pool = 0; pool < PoolCount; pool++) { 
+            Pools[pool].Stop(); 
         }
+        for (TCpuId cpuId = 0; cpuId < CpuCount; cpuId++) { 
+            Cpus[cpuId].Stop(); 
+        } 
     }
 
-    inline bool TUnitedWorkers::TryAcquireToken(TPoolId pool) {
-        return Pools[pool].TryAcquireToken();
+    void TUnitedWorkers::Shutdown() { 
+        for (TWorkerId workerId = 0; workerId < WorkerCount; workerId++) { 
+            Workers[workerId].Thread->Join(); 
+        } 
     }
 
-    inline void TUnitedWorkers::TryWake(TPoolId pool) {
-        // Avoid using multiple atomic seq_cst loads in cycle, use barrier once
-        AtomicBarrier();
-
-        // Scan every allowed cpu in pool's wakeup order and try to wake the first idle cpu
-        if (RelaxedLoad(&Pools[pool].Waiters) > 0) {
-            for (TCpu* cpu : Pools[pool].WakeOrderCpus) {
-                if (cpu->State.WakeWithoutToken(pool) == TCpuState::Woken) {
-                    return; // successful wake up
-                }
-            }
-        }
+    inline void TUnitedWorkers::PushActivation(TPoolId pool, ui32 activation, ui64 revolvingCounter) { 
+        if (Pools[pool].PushActivation(activation, revolvingCounter)) { // token generated 
+            TryWake(pool); 
+        } 
+    } 
 
-        // Cpu has not been woken up
+    inline bool TUnitedWorkers::TryAcquireToken(TPoolId pool) { 
+        return Pools[pool].TryAcquireToken(); 
     }
 
-    inline void TUnitedWorkers::BeginExecution(TPoolId pool, ui32& activation, ui64 revolvingCounter) {
-        Pools[pool].BeginExecution(activation, revolvingCounter);
+    inline void TUnitedWorkers::TryWake(TPoolId pool) { 
+        // Avoid using multiple atomic seq_cst loads in cycle, use barrier once 
+        AtomicBarrier(); 
+
+        // Scan every allowed cpu in pool's wakeup order and try to wake the first idle cpu 
+        if (RelaxedLoad(&Pools[pool].Waiters) > 0) { 
+            for (TCpu* cpu : Pools[pool].WakeOrderCpus) { 
+                if (cpu->State.WakeWithoutToken(pool) == TCpuState::Woken) { 
+                    return; // successful wake up 
+                } 
+            } 
+        } 
+ 
+        // Cpu has not been woken up 
+    } 
+
+    inline void TUnitedWorkers::BeginExecution(TPoolId pool, ui32& activation, ui64 revolvingCounter) { 
+        Pools[pool].BeginExecution(activation, revolvingCounter); 
     }
 
-    inline bool TUnitedWorkers::NextExecution(TPoolId pool, ui32& activation, ui64 revolvingCounter) {
-        return Pools[pool].NextExecution(activation, revolvingCounter);
-    }
+    inline bool TUnitedWorkers::NextExecution(TPoolId pool, ui32& activation, ui64 revolvingCounter) { 
+        return Pools[pool].NextExecution(activation, revolvingCounter); 
+    } 
 
-    inline void TUnitedWorkers::StopExecution(TPoolId pool) {
-        if (Pools[pool].StopExecution()) { // pending token
-            TryWake(pool);
-        }
+    inline void TUnitedWorkers::StopExecution(TPoolId pool) { 
+        if (Pools[pool].StopExecution()) { // pending token 
+            TryWake(pool); 
+        } 
     }
 
-    inline void TUnitedWorkers::Balance() {
-        ui64 ts = GetCycleCountFast();
-        if (Balancer->TryLock(ts)) {
-            for (TPoolId pool = 0; pool < PoolCount; pool++) {
-                if (Pools[pool].IsUnited()) {
-                    ui64 ElapsedTs = 0;
-                    ui64 ParkedTs = 0;
-                    for (TCpu* cpu : Pools[pool].WakeOrderCpus) {
-                        const TExecutorThreadStats& cpuStats = cpu->PoolStats[pool];
-                        ElapsedTs += cpuStats.ElapsedTicks;
-                        ParkedTs += cpuStats.ParkedTicks;
-                    }
-                    TBalancerStats stats;
-                    stats.Ts = ts;
-                    stats.CpuUs = Ts2Us(ElapsedTs);
-                    stats.IdleUs = Ts2Us(ParkedTs);
-                    Balancer->SetPoolStats(pool, stats);
-                }
-            }
-            Balancer->Balance();
-            Balancer->Unlock();
-        }
+    inline void TUnitedWorkers::Balance() { 
+        ui64 ts = GetCycleCountFast(); 
+        if (Balancer->TryLock(ts)) { 
+            for (TPoolId pool = 0; pool < PoolCount; pool++) { 
+                if (Pools[pool].IsUnited()) { 
+                    ui64 ElapsedTs = 0; 
+                    ui64 ParkedTs = 0; 
+                    for (TCpu* cpu : Pools[pool].WakeOrderCpus) { 
+                        const TExecutorThreadStats& cpuStats = cpu->PoolStats[pool]; 
+                        ElapsedTs += cpuStats.ElapsedTicks; 
+                        ParkedTs += cpuStats.ParkedTicks; 
+                    } 
+                    TBalancerStats stats; 
+                    stats.Ts = ts; 
+                    stats.CpuUs = Ts2Us(ElapsedTs); 
+                    stats.IdleUs = Ts2Us(ParkedTs); 
+                    Balancer->SetPoolStats(pool, stats); 
+                } 
+            } 
+            Balancer->Balance(); 
+            Balancer->Unlock(); 
+        } 
+    } 
+ 
+    inline TPoolId TUnitedWorkers::AssignedPool(TWorkerContext& wctx) { 
+        return Cpus[wctx.CpuId].State.AssignedPool(); 
+    } 
+ 
+    inline bool TUnitedWorkers::IsPoolReassigned(TWorkerContext& wctx) { 
+        return Cpus[wctx.CpuId].State.IsPoolReassigned(wctx.PoolId); 
+    } 
+ 
+    inline void TUnitedWorkers::SwitchPool(TWorkerContext& wctx, ui64 softDeadlineTs) { 
+        Pools[wctx.PoolId].Switch(wctx, softDeadlineTs, Cpus[wctx.CpuId].PoolStats[wctx.PoolId]); 
+        Cpus[wctx.CpuId].SwitchPool(wctx.PoolId); 
+    } 
+ 
+    TPoolId TUnitedWorkers::Idle(TPoolId assigned, TWorkerContext& wctx) { 
+        wctx.SwitchToIdle(); 
+ 
+        TPoolId result; 
+        TTimeTracker timeTracker; 
+        TCpu& cpu = Cpus[wctx.CpuId]; 
+        TPool* assignedPool = assigned == CpuShared ? nullptr : &Pools[assigned]; 
+        TCpu::TScopedWaiters scopedWaiters(cpu, assignedPool); 
+        while (true) { 
+            if (cpu.StartSpinning(this, assignedPool, result)) { 
+                break; // token already acquired (or stop) 
+            }
+            result = WaitSequence(cpu, wctx, timeTracker); 
+            if (Y_UNLIKELY(result == CpuStopped) || TryAcquireToken(result)) { 
+                break; // token acquired (or stop) 
+            } 
+        }
+ 
+        wctx.AddElapsedCycles(IActor::ACTOR_SYSTEM, timeTracker.Elapsed()); 
+        return result; 
     }
 
-    inline TPoolId TUnitedWorkers::AssignedPool(TWorkerContext& wctx) {
-        return Cpus[wctx.CpuId].State.AssignedPool();
+    TPoolId TUnitedWorkers::WaitSequence(TCpu& cpu, TWorkerContext& wctx, TTimeTracker& timeTracker) { 
+        TPoolId result; 
+        if (cpu.ActiveWait(Us2Ts(Config.SpinThresholdUs), result)) { 
+            wctx.AddElapsedCycles(IActor::ACTOR_SYSTEM, timeTracker.Elapsed()); 
+            return result; 
+        } 
+        if (cpu.StartBlocking(result)) { 
+            wctx.AddElapsedCycles(IActor::ACTOR_SYSTEM, timeTracker.Elapsed()); 
+            return result; 
+        } 
+        wctx.AddElapsedCycles(IActor::ACTOR_SYSTEM, timeTracker.Elapsed()); 
+        bool wakeup; 
+        do { 
+            wakeup = cpu.BlockedWait(result, Config.Balancer.PeriodUs * 1000); 
+            wctx.AddParkedCycles(timeTracker.Elapsed()); 
+        } while (!wakeup); 
+        return result; 
     }
 
-    inline bool TUnitedWorkers::IsPoolReassigned(TWorkerContext& wctx) {
-        return Cpus[wctx.CpuId].State.IsPoolReassigned(wctx.PoolId);
-    }
-
-    inline void TUnitedWorkers::SwitchPool(TWorkerContext& wctx, ui64 softDeadlineTs) {
-        Pools[wctx.PoolId].Switch(wctx, softDeadlineTs, Cpus[wctx.CpuId].PoolStats[wctx.PoolId]);
-        Cpus[wctx.CpuId].SwitchPool(wctx.PoolId);
-    }
-
-    TPoolId TUnitedWorkers::Idle(TPoolId assigned, TWorkerContext& wctx) {
-        wctx.SwitchToIdle();
-
-        TPoolId result;
-        TTimeTracker timeTracker;
-        TCpu& cpu = Cpus[wctx.CpuId];
-        TPool* assignedPool = assigned == CpuShared ? nullptr : &Pools[assigned];
-        TCpu::TScopedWaiters scopedWaiters(cpu, assignedPool);
-        while (true) {
-            if (cpu.StartSpinning(this, assignedPool, result)) {
-                break; // token already acquired (or stop)
-            }
-            result = WaitSequence(cpu, wctx, timeTracker);
-            if (Y_UNLIKELY(result == CpuStopped) || TryAcquireToken(result)) {
-                break; // token acquired (or stop)
-            }
-        }
-
-        wctx.AddElapsedCycles(IActor::ACTOR_SYSTEM, timeTracker.Elapsed());
-        return result;
-    }
-
-    TPoolId TUnitedWorkers::WaitSequence(TCpu& cpu, TWorkerContext& wctx, TTimeTracker& timeTracker) {
-        TPoolId result;
-        if (cpu.ActiveWait(Us2Ts(Config.SpinThresholdUs), result)) {
-            wctx.AddElapsedCycles(IActor::ACTOR_SYSTEM, timeTracker.Elapsed());
-            return result;
-        }
-        if (cpu.StartBlocking(result)) {
-            wctx.AddElapsedCycles(IActor::ACTOR_SYSTEM, timeTracker.Elapsed());
-            return result;
-        }
-        wctx.AddElapsedCycles(IActor::ACTOR_SYSTEM, timeTracker.Elapsed());
-        bool wakeup;
-        do {
-            wakeup = cpu.BlockedWait(result, Config.Balancer.PeriodUs * 1000);
-            wctx.AddParkedCycles(timeTracker.Elapsed());
-        } while (!wakeup);
-        return result;
-    }
-
-    void TUnitedWorkers::GetCurrentStats(TPoolId pool, TVector<TExecutorThreadStats>& statsCopy) const {
-        size_t idx = 1;
-        statsCopy.resize(idx + Pools[pool].WakeOrderCpus.size());
-        for (TCpu* cpu : Pools[pool].WakeOrderCpus) {
-            TExecutorThreadStats& s = statsCopy[idx++];
-            s = TExecutorThreadStats();
-            s.Aggregate(cpu->PoolStats[pool]);
-        }
-    }
-
-    TUnitedExecutorPool::TUnitedExecutorPool(const TUnitedExecutorPoolConfig& cfg, TUnitedWorkers* united)
-        : TExecutorPoolBaseMailboxed(cfg.PoolId, cfg.MaxActivityType)
-        , United(united)
-        , PoolName(cfg.PoolName)
-    {
-        United->SetupPool(TPoolId(cfg.PoolId), this, MailboxTable.Get());
-    }
-
-    void TUnitedExecutorPool::Prepare(TActorSystem* actorSystem, NSchedulerQueue::TReader** scheduleReaders, ui32* scheduleSz) {
-        ActorSystem = actorSystem;
-
-        // Schedule readers are initialized through TUnitedWorkers::Prepare
-        *scheduleReaders = nullptr;
-        *scheduleSz = 0;
-    }
-
-    void TUnitedExecutorPool::Start() {
-        // workers are actually started in TUnitedWorkers::Start()
-    }
-
-    void TUnitedExecutorPool::PrepareStop() {
-    }
-
-    void TUnitedExecutorPool::Shutdown() {
-        // workers are actually joined in TUnitedWorkers::Shutdown()
-    }
-
-    TAffinity* TUnitedExecutorPool::Affinity() const {
-        Y_FAIL(); // should never be called, TCpuExecutorPool is used instead
-    }
-
-    ui32 TUnitedExecutorPool::GetThreads() const {
-        return 0;
-    }
-
-    ui32 TUnitedExecutorPool::GetReadyActivation(TWorkerContext&, ui64) {
-        Y_FAIL(); // should never be called, TCpu*ExecutorPool is used instead
-    }
-
-    inline void TUnitedExecutorPool::ScheduleActivation(ui32 activation) {
-        TUnitedExecutorPool::ScheduleActivationEx(activation, AtomicIncrement(ActivationsRevolvingCounter));
-    }
-
-    inline void TUnitedExecutorPool::ScheduleActivationEx(ui32 activation, ui64 revolvingCounter) {
-        United->PushActivation(PoolId, activation, revolvingCounter);
-    }
-
-    void TUnitedExecutorPool::Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) {
-        TUnitedExecutorPool::Schedule(deadline - ActorSystem->Timestamp(), ev, cookie, workerId);
-    }
-
-    void TUnitedExecutorPool::Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) {
-        Y_VERIFY_DEBUG(workerId < United->GetWorkerCount());
-        const auto current = ActorSystem->Monotonic();
-        if (deadline < current) {
-            deadline = current;
-        }
-        United->GetScheduleWriter(workerId)->Push(deadline.MicroSeconds(), ev.Release(), cookie);
-    }
-
-    void TUnitedExecutorPool::Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) {
-        Y_VERIFY_DEBUG(workerId < United->GetWorkerCount());
-        const auto deadline = ActorSystem->Monotonic() + delta;
-        United->GetScheduleWriter(workerId)->Push(deadline.MicroSeconds(), ev.Release(), cookie);
-    }
-
-    void TUnitedExecutorPool::GetCurrentStats(TExecutorPoolStats& poolStats, TVector<TExecutorThreadStats>& statsCopy) const {
-        Y_UNUSED(poolStats);
-        if (statsCopy.empty()) {
-            statsCopy.resize(1);
-        }
-        statsCopy[0] = TExecutorThreadStats();
-        statsCopy[0].Aggregate(Stats);
-        United->GetCurrentStats(PoolId, statsCopy);
+    void TUnitedWorkers::GetCurrentStats(TPoolId pool, TVector<TExecutorThreadStats>& statsCopy) const { 
+        size_t idx = 1; 
+        statsCopy.resize(idx + Pools[pool].WakeOrderCpus.size()); 
+        for (TCpu* cpu : Pools[pool].WakeOrderCpus) { 
+            TExecutorThreadStats& s = statsCopy[idx++]; 
+            s = TExecutorThreadStats(); 
+            s.Aggregate(cpu->PoolStats[pool]); 
+        } 
+    } 
+
+    TUnitedExecutorPool::TUnitedExecutorPool(const TUnitedExecutorPoolConfig& cfg, TUnitedWorkers* united) 
+        : TExecutorPoolBaseMailboxed(cfg.PoolId, cfg.MaxActivityType) 
+        , United(united) 
+        , PoolName(cfg.PoolName) 
+    { 
+        United->SetupPool(TPoolId(cfg.PoolId), this, MailboxTable.Get()); 
+    } 
+
+    void TUnitedExecutorPool::Prepare(TActorSystem* actorSystem, NSchedulerQueue::TReader** scheduleReaders, ui32* scheduleSz) { 
+        ActorSystem = actorSystem; 
+
+        // Schedule readers are initialized through TUnitedWorkers::Prepare 
+        *scheduleReaders = nullptr; 
+        *scheduleSz = 0; 
+    } 
+ 
+    void TUnitedExecutorPool::Start() { 
+        // workers are actually started in TUnitedWorkers::Start() 
+    } 
+ 
+    void TUnitedExecutorPool::PrepareStop() { 
+    } 
+ 
+    void TUnitedExecutorPool::Shutdown() { 
+        // workers are actually joined in TUnitedWorkers::Shutdown() 
+    } 
+ 
+    TAffinity* TUnitedExecutorPool::Affinity() const { 
+        Y_FAIL(); // should never be called, TCpuExecutorPool is used instead 
+    } 
+ 
+    ui32 TUnitedExecutorPool::GetThreads() const { 
+        return 0; 
+    } 
+ 
+    ui32 TUnitedExecutorPool::GetReadyActivation(TWorkerContext&, ui64) { 
+        Y_FAIL(); // should never be called, TCpu*ExecutorPool is used instead 
+    } 
+ 
+    inline void TUnitedExecutorPool::ScheduleActivation(ui32 activation) { 
+        TUnitedExecutorPool::ScheduleActivationEx(activation, AtomicIncrement(ActivationsRevolvingCounter)); 
+    } 
+ 
+    inline void TUnitedExecutorPool::ScheduleActivationEx(ui32 activation, ui64 revolvingCounter) { 
+        United->PushActivation(PoolId, activation, revolvingCounter); 
+    } 
+ 
+    void TUnitedExecutorPool::Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) { 
+        TUnitedExecutorPool::Schedule(deadline - ActorSystem->Timestamp(), ev, cookie, workerId); 
+    } 
+ 
+    void TUnitedExecutorPool::Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) { 
+        Y_VERIFY_DEBUG(workerId < United->GetWorkerCount()); 
+        const auto current = ActorSystem->Monotonic(); 
+        if (deadline < current) { 
+            deadline = current; 
+        }
+        United->GetScheduleWriter(workerId)->Push(deadline.MicroSeconds(), ev.Release(), cookie); 
     }
+ 
+    void TUnitedExecutorPool::Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) { 
+        Y_VERIFY_DEBUG(workerId < United->GetWorkerCount()); 
+        const auto deadline = ActorSystem->Monotonic() + delta; 
+        United->GetScheduleWriter(workerId)->Push(deadline.MicroSeconds(), ev.Release(), cookie); 
+    } 
+ 
+    void TUnitedExecutorPool::GetCurrentStats(TExecutorPoolStats& poolStats, TVector<TExecutorThreadStats>& statsCopy) const { 
+        Y_UNUSED(poolStats); 
+        if (statsCopy.empty()) { 
+            statsCopy.resize(1); 
+        } 
+        statsCopy[0] = TExecutorThreadStats(); 
+        statsCopy[0].Aggregate(Stats); 
+        United->GetCurrentStats(PoolId, statsCopy); 
+    } 
 }
diff --git a/library/cpp/actors/core/executor_pool_united.h b/library/cpp/actors/core/executor_pool_united.h
index a090ba2466..8f5cabe365 100644
--- a/library/cpp/actors/core/executor_pool_united.h
+++ b/library/cpp/actors/core/executor_pool_united.h
@@ -1,133 +1,133 @@
 #pragma once
 
 #include "actorsystem.h"
-#include "balancer.h"
+#include "balancer.h" 
 #include "scheduler_queue.h"
 #include "executor_pool_base.h"
-
+ 
 #include <library/cpp/actors/util/unordered_cache.h>
-
+ 
 #include <library/cpp/monlib/dynamic_counters/counters.h>
-#include <library/cpp/actors/util/unordered_cache.h>
-#include <library/cpp/containers/stack_vector/stack_vec.h>
-
-#include <util/generic/noncopyable.h>
-
+#include <library/cpp/actors/util/unordered_cache.h> 
+#include <library/cpp/containers/stack_vector/stack_vec.h> 
+ 
+#include <util/generic/noncopyable.h> 
+ 
 namespace NActors {
-    class TMailboxTable;
-
-    class TUnitedWorkers: public TNonCopyable {
-        struct TWorker;
-        struct TPool;
-        struct TCpu;
-
-        size_t WorkerCount;
-        TArrayHolder<TWorker> Workers; // indexed by WorkerId
-        size_t PoolCount;
-        TArrayHolder<TPool> Pools;  // indexed by PoolId, so may include not used (not united) pools
-        size_t CpuCount;
-        TArrayHolder<TCpu> Cpus; // indexed by CpuId, so may include not allocated CPUs
-
-        IBalancer* Balancer; // external pool cpu balancer
-
-        TUnitedWorkersConfig Config;
-        TCpuAllocationConfig Allocation;
-
-        volatile bool StopFlag = false;
-
-    public:
-        TUnitedWorkers(
-            const TUnitedWorkersConfig& config,
-            const TVector<TUnitedExecutorPoolConfig>& unitedPools,
-            const TCpuAllocationConfig& allocation,
-            IBalancer* balancer);
-        ~TUnitedWorkers();
-        void Prepare(TActorSystem* actorSystem, TVector<NSchedulerQueue::TReader*>& scheduleReaders);
-        void Start();
-        void PrepareStop();
-        void Shutdown();
-
-        bool IsStopped() const {
-            return RelaxedLoad(&StopFlag);
-        }
-
-        TWorkerId GetWorkerCount() const {
-            return WorkerCount;
-        }
-
-        // Returns thread id of a worker
-        TThreadId GetWorkerThreadId(TWorkerId workerId) const;
-
-        // Returns per worker schedule writers
-        NSchedulerQueue::TWriter* GetScheduleWriter(TWorkerId workerId) const;
-
-        // Sets executor for specified pool
-        void SetupPool(TPoolId pool, IExecutorPool* executorPool, TMailboxTable* mailboxTable);
-
-        // Add activation of newly scheduled mailbox and wake cpu to execute it if required
-        void PushActivation(TPoolId pool, ui32 activation, ui64 revolvingCounter);
-
-        // Try acquire pending token. Must be done before execution
-        bool TryAcquireToken(TPoolId pool);
-
-        // Try to wake idle cpu waiting for tokens on specified pool
-        void TryWake(TPoolId pool);
-
-        // Get activation from pool; requires pool's token
-        void BeginExecution(TPoolId pool, ui32& activation, ui64 revolvingCounter);
-
-        // Stop currently active execution and start new one if token is available
-        // NOTE: Reuses token if it's not destroyed
-        bool NextExecution(TPoolId pool, ui32& activation, ui64 revolvingCounter);
-
-        // Stop active execution
-        void StopExecution(TPoolId pool);
-
-        // Runs balancer to assign pools to cpus
-        void Balance();
-
-        // Returns pool to be executed by worker or `CpuShared`
-        TPoolId AssignedPool(TWorkerContext& wctx);
-
-        // Checks if balancer has assigned another pool for worker's cpu
-        bool IsPoolReassigned(TWorkerContext& wctx);
-
-        // Switch worker context into specified pool
-        void SwitchPool(TWorkerContext& wctx, ui64 softDeadlineTs);
-
-        // Wait for tokens from any pool allowed on specified cpu
-        TPoolId Idle(TPoolId assigned, TWorkerContext& wctx);
-
-        // Fill stats for specified pool
-        void GetCurrentStats(TPoolId pool, TVector<TExecutorThreadStats>& statsCopy) const;
-
-    private:
-        TPoolId WaitSequence(TCpu& cpu, TWorkerContext& wctx, TTimeTracker& timeTracker);
-    };
-
-    class TUnitedExecutorPool: public TExecutorPoolBaseMailboxed {
-        TUnitedWorkers* United;
-        const TString PoolName;
-        TAtomic ActivationsRevolvingCounter = 0;
-    public:
-        TUnitedExecutorPool(const TUnitedExecutorPoolConfig& cfg, TUnitedWorkers* united);
-
-        void Prepare(TActorSystem* actorSystem, NSchedulerQueue::TReader** scheduleReaders, ui32* scheduleSz) override;
+    class TMailboxTable; 
+
+    class TUnitedWorkers: public TNonCopyable { 
+        struct TWorker; 
+        struct TPool; 
+        struct TCpu; 
+
+        size_t WorkerCount; 
+        TArrayHolder<TWorker> Workers; // indexed by WorkerId 
+        size_t PoolCount; 
+        TArrayHolder<TPool> Pools;  // indexed by PoolId, so may include not used (not united) pools 
+        size_t CpuCount; 
+        TArrayHolder<TCpu> Cpus; // indexed by CpuId, so may include not allocated CPUs 
+
+        IBalancer* Balancer; // external pool cpu balancer 
+ 
+        TUnitedWorkersConfig Config; 
+        TCpuAllocationConfig Allocation; 
+
+        volatile bool StopFlag = false; 
+
+    public: 
+        TUnitedWorkers( 
+            const TUnitedWorkersConfig& config, 
+            const TVector<TUnitedExecutorPoolConfig>& unitedPools, 
+            const TCpuAllocationConfig& allocation, 
+            IBalancer* balancer); 
+        ~TUnitedWorkers(); 
+        void Prepare(TActorSystem* actorSystem, TVector<NSchedulerQueue::TReader*>& scheduleReaders); 
+        void Start(); 
+        void PrepareStop(); 
+        void Shutdown(); 
+
+        bool IsStopped() const { 
+            return RelaxedLoad(&StopFlag); 
+        } 
+
+        TWorkerId GetWorkerCount() const { 
+            return WorkerCount; 
+        } 
+
+        // Returns thread id of a worker 
+        TThreadId GetWorkerThreadId(TWorkerId workerId) const; 
+
+        // Returns per worker schedule writers 
+        NSchedulerQueue::TWriter* GetScheduleWriter(TWorkerId workerId) const; 
+
+        // Sets executor for specified pool 
+        void SetupPool(TPoolId pool, IExecutorPool* executorPool, TMailboxTable* mailboxTable); 
+
+        // Add activation of newly scheduled mailbox and wake cpu to execute it if required 
+        void PushActivation(TPoolId pool, ui32 activation, ui64 revolvingCounter); 
+
+        // Try acquire pending token. Must be done before execution 
+        bool TryAcquireToken(TPoolId pool); 
+
+        // Try to wake idle cpu waiting for tokens on specified pool 
+        void TryWake(TPoolId pool); 
+
+        // Get activation from pool; requires pool's token 
+        void BeginExecution(TPoolId pool, ui32& activation, ui64 revolvingCounter); 
+
+        // Stop currently active execution and start new one if token is available 
+        // NOTE: Reuses token if it's not destroyed 
+        bool NextExecution(TPoolId pool, ui32& activation, ui64 revolvingCounter); 
+
+        // Stop active execution 
+        void StopExecution(TPoolId pool); 
+
+        // Runs balancer to assign pools to cpus 
+        void Balance(); 
+ 
+        // Returns pool to be executed by worker or `CpuShared` 
+        TPoolId AssignedPool(TWorkerContext& wctx); 
+ 
+        // Checks if balancer has assigned another pool for worker's cpu 
+        bool IsPoolReassigned(TWorkerContext& wctx); 
+ 
+        // Switch worker context into specified pool 
+        void SwitchPool(TWorkerContext& wctx, ui64 softDeadlineTs); 
+ 
+        // Wait for tokens from any pool allowed on specified cpu 
+        TPoolId Idle(TPoolId assigned, TWorkerContext& wctx); 
+ 
+        // Fill stats for specified pool 
+        void GetCurrentStats(TPoolId pool, TVector<TExecutorThreadStats>& statsCopy) const; 
+ 
+    private: 
+        TPoolId WaitSequence(TCpu& cpu, TWorkerContext& wctx, TTimeTracker& timeTracker); 
+    }; 
+ 
+    class TUnitedExecutorPool: public TExecutorPoolBaseMailboxed { 
+        TUnitedWorkers* United; 
+        const TString PoolName; 
+        TAtomic ActivationsRevolvingCounter = 0; 
+    public: 
+        TUnitedExecutorPool(const TUnitedExecutorPoolConfig& cfg, TUnitedWorkers* united); 
+ 
+        void Prepare(TActorSystem* actorSystem, NSchedulerQueue::TReader** scheduleReaders, ui32* scheduleSz) override; 
         void Start() override;
         void PrepareStop() override;
         void Shutdown() override;
 
-        TAffinity* Affinity() const override;
-        ui32 GetThreads() const override;
-        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingReadCounter) override;
-        void ScheduleActivation(ui32 activation) override;
-        void ScheduleActivationEx(ui32 activation, ui64 revolvingWriteCounter) override;
-        void Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override;
-        void Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override;
-        void Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override;
-
+        TAffinity* Affinity() const override; 
+        ui32 GetThreads() const override; 
+        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingReadCounter) override; 
+        void ScheduleActivation(ui32 activation) override; 
+        void ScheduleActivationEx(ui32 activation, ui64 revolvingWriteCounter) override; 
+        void Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override; 
+        void Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override; 
+        void Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, TWorkerId workerId) override; 
+ 
         void GetCurrentStats(TExecutorPoolStats& poolStats, TVector<TExecutorThreadStats>& statsCopy) const override;
-
+ 
         TString GetName() const override {
             return PoolName;
         }
diff --git a/library/cpp/actors/core/executor_pool_united_ut.cpp b/library/cpp/actors/core/executor_pool_united_ut.cpp
index d4df17f1b8..97e1f91557 100644
--- a/library/cpp/actors/core/executor_pool_united_ut.cpp
+++ b/library/cpp/actors/core/executor_pool_united_ut.cpp
@@ -18,18 +18,18 @@ struct TEvMsg : public NActors::TEventBase<TEvMsg, 10347> {
 
 ////////////////////////////////////////////////////////////////////////////////
 
-inline ui64 DoTimedWork(ui64 workUs) {
-    ui64 startUs = ThreadCPUTime();
-    ui64 endUs = startUs + workUs;
-    ui64 nowUs = startUs;
-    do {
-        ui64 endTs = GetCycleCountFast() + Us2Ts(endUs - nowUs);
-        while (GetCycleCountFast() <= endTs) {}
-        nowUs = ThreadCPUTime();
-    } while (nowUs <= endUs);
-    return nowUs - startUs;
-}
-
+inline ui64 DoTimedWork(ui64 workUs) { 
+    ui64 startUs = ThreadCPUTime(); 
+    ui64 endUs = startUs + workUs; 
+    ui64 nowUs = startUs; 
+    do { 
+        ui64 endTs = GetCycleCountFast() + Us2Ts(endUs - nowUs); 
+        while (GetCycleCountFast() <= endTs) {} 
+        nowUs = ThreadCPUTime(); 
+    } while (nowUs <= endUs); 
+    return nowUs - startUs; 
+} 
+ 
 class TTestSenderActor : public IActor {
 private:
     using EActivityType = IActor::EActivityType ;
@@ -48,7 +48,7 @@ public:
         , Action(action)
     {}
 
-    void Start(TActorId receiver, size_t count) {
+    void Start(TActorId receiver, size_t count) { 
         AtomicSet(Counter, count);
         Receiver = receiver;
     }
@@ -68,14 +68,14 @@ public:
     }
 
 private:
-    STFUNC(Execute) {
+    STFUNC(Execute) { 
         Y_UNUSED(ctx);
         switch (ev->GetTypeRewrite()) {
             hFunc(TEvMsg, Handle);
         }
     }
 
-    void Handle(TEvMsg::TPtr &ev) {
+    void Handle(TEvMsg::TPtr &ev) { 
         Y_UNUSED(ev);
         Action();
         TAtomicBase count = AtomicDecrement(Counter);
@@ -86,57 +86,57 @@ private:
     }
 };
 
-// Single cpu balancer that switches pool on every activation; not thread-safe
-struct TRoundRobinBalancer: public IBalancer {
-    TCpuState* State;
-    TMap<TPoolId, TPoolId> NextPool;
-
-    bool AddCpu(const TCpuAllocation& cpuAlloc, TCpuState* cpu) override {
-        State = cpu;
-        TPoolId prev = cpuAlloc.AllowedPools.rbegin()->PoolId;
-        for (auto& p : cpuAlloc.AllowedPools) {
-            NextPool[prev] = p.PoolId;
-            prev = p.PoolId;
-        }
-        return true;
-    }
-
-    bool TryLock(ui64) override { return true; }
-    void SetPoolStats(TPoolId, const TBalancerStats&) override {}
-    void Unlock() override {}
-
-    void Balance() override {
-        TPoolId assigned;
-        TPoolId current;
-        State->Load(assigned, current);
-        State->AssignPool(NextPool[assigned]);
-    }
-};
-
-void AddUnitedPool(THolder<TActorSystemSetup>& setup, ui32 concurrency = 0) {
-    TUnitedExecutorPoolConfig united;
-    united.PoolId = setup->GetExecutorsCount();
-    united.Concurrency = concurrency;
-    setup->CpuManager.United.emplace_back(std::move(united));
-}
-
-THolder<TActorSystemSetup> GetActorSystemSetup(ui32 cpuCount) {
+// Single cpu balancer that switches pool on every activation; not thread-safe 
+struct TRoundRobinBalancer: public IBalancer { 
+    TCpuState* State; 
+    TMap<TPoolId, TPoolId> NextPool; 
+ 
+    bool AddCpu(const TCpuAllocation& cpuAlloc, TCpuState* cpu) override { 
+        State = cpu; 
+        TPoolId prev = cpuAlloc.AllowedPools.rbegin()->PoolId; 
+        for (auto& p : cpuAlloc.AllowedPools) { 
+            NextPool[prev] = p.PoolId; 
+            prev = p.PoolId; 
+        } 
+        return true; 
+    } 
+ 
+    bool TryLock(ui64) override { return true; } 
+    void SetPoolStats(TPoolId, const TBalancerStats&) override {} 
+    void Unlock() override {} 
+ 
+    void Balance() override { 
+        TPoolId assigned; 
+        TPoolId current; 
+        State->Load(assigned, current); 
+        State->AssignPool(NextPool[assigned]); 
+    } 
+}; 
+ 
+void AddUnitedPool(THolder<TActorSystemSetup>& setup, ui32 concurrency = 0) { 
+    TUnitedExecutorPoolConfig united; 
+    united.PoolId = setup->GetExecutorsCount(); 
+    united.Concurrency = concurrency; 
+    setup->CpuManager.United.emplace_back(std::move(united)); 
+} 
+ 
+THolder<TActorSystemSetup> GetActorSystemSetup(ui32 cpuCount) { 
     auto setup = MakeHolder<NActors::TActorSystemSetup>();
     setup->NodeId = 1;
-    setup->CpuManager.UnitedWorkers.CpuCount = cpuCount;
-    setup->CpuManager.UnitedWorkers.NoRealtime = true; // unavailable in test environment
+    setup->CpuManager.UnitedWorkers.CpuCount = cpuCount; 
+    setup->CpuManager.UnitedWorkers.NoRealtime = true; // unavailable in test environment 
     setup->Scheduler = new TBasicSchedulerThread(NActors::TSchedulerConfig(512, 0));
     return setup;
 }
 
-Y_UNIT_TEST_SUITE(UnitedExecutorPool) {
+Y_UNIT_TEST_SUITE(UnitedExecutorPool) { 
 
-#ifdef _linux_
+#ifdef _linux_ 
 
-    Y_UNIT_TEST(OnePoolManyCpus) {
+    Y_UNIT_TEST(OnePoolManyCpus) { 
         const size_t msgCount = 1e4;
-        auto setup = GetActorSystemSetup(4);
-        AddUnitedPool(setup);
+        auto setup = GetActorSystemSetup(4); 
+        AddUnitedPool(setup); 
         TActorSystem actorSystem(setup);
         actorSystem.Start();
 
@@ -153,186 +153,186 @@ Y_UNIT_TEST_SUITE(UnitedExecutorPool) {
 
             Sleep(TDuration::MilliSeconds(1));
         }
-
-        TVector<TExecutorThreadStats> stats;
-        TExecutorPoolStats poolStats;
-        actorSystem.GetPoolStats(0, poolStats, stats);
-        // Sum all per-thread counters into the 0th element
-        for (ui32 idx = 1; idx < stats.size(); ++idx) {
-            stats[0].Aggregate(stats[idx]);
-        }
-
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].SentEvents, msgCount - 1);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].ReceivedEvents, msgCount);
-        //UNIT_ASSERT_VALUES_EQUAL(stats[0].PreemptedEvents, 0); // depends on execution time and system load, so may be non-zero
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].NonDeliveredEvents, 0);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].EmptyMailboxActivation, 0);
-        //UNIT_ASSERT_VALUES_EQUAL(stats[0].CpuNs, 0); // depends on total duration of test, so undefined
-        UNIT_ASSERT(stats[0].ElapsedTicks > 0);
-        UNIT_ASSERT(stats[0].ParkedTicks == 0); // per-pool parked time does not make sense for united pools
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].BlockedTicks, 0);
-        UNIT_ASSERT(stats[0].ActivationTimeHistogram.TotalSamples >= msgCount / TBasicExecutorPoolConfig::DEFAULT_EVENTS_PER_MAILBOX);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].EventDeliveryTimeHistogram.TotalSamples, msgCount);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].EventProcessingCountHistogram.TotalSamples, msgCount);
-        UNIT_ASSERT(stats[0].EventProcessingTimeHistogram.TotalSamples > 0);
-        UNIT_ASSERT(stats[0].ElapsedTicksByActivity[0] > 0);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].ReceivedEventsByActivity[0], msgCount);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].ActorsAliveByActivity[0], 1);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].ScheduledEventsByActivity[0], 0);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolActorRegistrations, 1);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolDestroyedActors, 0);
-        UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolAllocatedMailboxes, 4095); // one line
-        UNIT_ASSERT(stats[0].MailboxPushedOutByTime + stats[0].MailboxPushedOutByEventCount + stats[0].MailboxPushedOutBySoftPreemption >= msgCount / TBasicExecutorPoolConfig::DEFAULT_EVENTS_PER_MAILBOX);
+ 
+        TVector<TExecutorThreadStats> stats; 
+        TExecutorPoolStats poolStats; 
+        actorSystem.GetPoolStats(0, poolStats, stats); 
+        // Sum all per-thread counters into the 0th element 
+        for (ui32 idx = 1; idx < stats.size(); ++idx) { 
+            stats[0].Aggregate(stats[idx]); 
+        } 
+ 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].SentEvents, msgCount - 1); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].ReceivedEvents, msgCount); 
+        //UNIT_ASSERT_VALUES_EQUAL(stats[0].PreemptedEvents, 0); // depends on execution time and system load, so may be non-zero 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].NonDeliveredEvents, 0); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].EmptyMailboxActivation, 0); 
+        //UNIT_ASSERT_VALUES_EQUAL(stats[0].CpuNs, 0); // depends on total duration of test, so undefined 
+        UNIT_ASSERT(stats[0].ElapsedTicks > 0); 
+        UNIT_ASSERT(stats[0].ParkedTicks == 0); // per-pool parked time does not make sense for united pools 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].BlockedTicks, 0); 
+        UNIT_ASSERT(stats[0].ActivationTimeHistogram.TotalSamples >= msgCount / TBasicExecutorPoolConfig::DEFAULT_EVENTS_PER_MAILBOX); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].EventDeliveryTimeHistogram.TotalSamples, msgCount); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].EventProcessingCountHistogram.TotalSamples, msgCount); 
+        UNIT_ASSERT(stats[0].EventProcessingTimeHistogram.TotalSamples > 0); 
+        UNIT_ASSERT(stats[0].ElapsedTicksByActivity[0] > 0); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].ReceivedEventsByActivity[0], msgCount); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].ActorsAliveByActivity[0], 1); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].ScheduledEventsByActivity[0], 0); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolActorRegistrations, 1); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolDestroyedActors, 0); 
+        UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolAllocatedMailboxes, 4095); // one line 
+        UNIT_ASSERT(stats[0].MailboxPushedOutByTime + stats[0].MailboxPushedOutByEventCount + stats[0].MailboxPushedOutBySoftPreemption >= msgCount / TBasicExecutorPoolConfig::DEFAULT_EVENTS_PER_MAILBOX); 
     }
 
-    Y_UNIT_TEST(ManyPoolsOneSharedCpu) {
+    Y_UNIT_TEST(ManyPoolsOneSharedCpu) { 
         const size_t msgCount = 1e4;
-        const size_t pools = 4;
-        auto setup = GetActorSystemSetup(1);
-        for (size_t pool = 0; pool < pools; pool++) {
-            AddUnitedPool(setup);
-        }
+        const size_t pools = 4; 
+        auto setup = GetActorSystemSetup(1); 
+        for (size_t pool = 0; pool < pools; pool++) { 
+            AddUnitedPool(setup); 
+        } 
         TActorSystem actorSystem(setup);
         actorSystem.Start();
 
         auto begin = TInstant::Now();
 
-        TVector<TTestSenderActor*> actors;
-        for (size_t pool = 0; pool < pools; pool++) {
-            auto actor = new TTestSenderActor();
-            auto actorId = actorSystem.Register(actor, TMailboxType::HTSwap, pool);
-            actor->Start(actor->SelfId(), msgCount);
-            actorSystem.Send(actorId, new TEvMsg());
-            actors.push_back(actor);
+        TVector<TTestSenderActor*> actors; 
+        for (size_t pool = 0; pool < pools; pool++) { 
+            auto actor = new TTestSenderActor(); 
+            auto actorId = actorSystem.Register(actor, TMailboxType::HTSwap, pool); 
+            actor->Start(actor->SelfId(), msgCount); 
+            actorSystem.Send(actorId, new TEvMsg()); 
+            actors.push_back(actor); 
         }
 
         while (true) {
-            size_t left = 0;
-            for (auto actor : actors) {
-                left += actor->GetCounter();
+            size_t left = 0; 
+            for (auto actor : actors) { 
+                left += actor->GetCounter(); 
             }
-            if (left == 0) {
+            if (left == 0) { 
                 break;
             }
             auto now = TInstant::Now();
-            UNIT_ASSERT_C(now - begin < TDuration::Seconds(5), "left " << left);
+            UNIT_ASSERT_C(now - begin < TDuration::Seconds(5), "left " << left); 
             Sleep(TDuration::MilliSeconds(1));
         }
-
-        for (size_t pool = 0; pool < pools; pool++) {
-            TVector<TExecutorThreadStats> stats;
-            TExecutorPoolStats poolStats;
-            actorSystem.GetPoolStats(pool, poolStats, stats);
-            // Sum all per-thread counters into the 0th element
-            for (ui32 idx = 1; idx < stats.size(); ++idx) {
-                stats[0].Aggregate(stats[idx]);
-            }
-
-            UNIT_ASSERT_VALUES_EQUAL(stats[0].ReceivedEvents, msgCount);
-            UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolActorRegistrations, 1);
-        }
+ 
+        for (size_t pool = 0; pool < pools; pool++) { 
+            TVector<TExecutorThreadStats> stats; 
+            TExecutorPoolStats poolStats; 
+            actorSystem.GetPoolStats(pool, poolStats, stats); 
+            // Sum all per-thread counters into the 0th element 
+            for (ui32 idx = 1; idx < stats.size(); ++idx) { 
+                stats[0].Aggregate(stats[idx]); 
+            } 
+ 
+            UNIT_ASSERT_VALUES_EQUAL(stats[0].ReceivedEvents, msgCount); 
+            UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolActorRegistrations, 1); 
+        } 
     }
 
-    Y_UNIT_TEST(ManyPoolsOneAssignedCpu) {
-        const size_t msgCount = 1e4;
-        const size_t pools = 4;
-        auto setup = GetActorSystemSetup(1);
-        setup->Balancer.Reset(new TRoundRobinBalancer());
-        for (size_t pool = 0; pool < pools; pool++) {
-            AddUnitedPool(setup);
-        }
+    Y_UNIT_TEST(ManyPoolsOneAssignedCpu) { 
+        const size_t msgCount = 1e4; 
+        const size_t pools = 4; 
+        auto setup = GetActorSystemSetup(1); 
+        setup->Balancer.Reset(new TRoundRobinBalancer()); 
+        for (size_t pool = 0; pool < pools; pool++) { 
+            AddUnitedPool(setup); 
+        } 
+        TActorSystem actorSystem(setup); 
+        actorSystem.Start(); 
+ 
+        auto begin = TInstant::Now(); 
+ 
+        TVector<TTestSenderActor*> actors; 
+        for (size_t pool = 0; pool < pools; pool++) { 
+            auto actor = new TTestSenderActor(); 
+            auto actorId = actorSystem.Register(actor, TMailboxType::HTSwap, pool); 
+            actor->Start(actor->SelfId(), msgCount); 
+            actorSystem.Send(actorId, new TEvMsg()); 
+            actors.push_back(actor); 
+        } 
+ 
+        while (true) { 
+            size_t left = 0; 
+            for (auto actor : actors) { 
+                left += actor->GetCounter(); 
+            } 
+            if (left == 0) { 
+                break; 
+            } 
+            auto now = TInstant::Now(); 
+            UNIT_ASSERT_C(now - begin < TDuration::Seconds(5), "left " << left); 
+            Sleep(TDuration::MilliSeconds(1)); 
+        } 
+ 
+        for (size_t pool = 0; pool < pools; pool++) { 
+            TVector<TExecutorThreadStats> stats; 
+            TExecutorPoolStats poolStats; 
+            actorSystem.GetPoolStats(pool, poolStats, stats); 
+            // Sum all per-thread counters into the 0th element 
+            for (ui32 idx = 1; idx < stats.size(); ++idx) { 
+                stats[0].Aggregate(stats[idx]); 
+            } 
+ 
+            UNIT_ASSERT_VALUES_EQUAL(stats[0].ReceivedEvents, msgCount); 
+            UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolActorRegistrations, 1); 
+        } 
+    } 
+ 
+    Y_UNIT_TEST(ManyPoolsOneCpuSlowEvents) { 
+        const size_t msgCount = 3; 
+        const size_t pools = 4; 
+        auto setup = GetActorSystemSetup(1); 
+        for (size_t pool = 0; pool < pools; pool++) { 
+            AddUnitedPool(setup); 
+        } 
         TActorSystem actorSystem(setup);
         actorSystem.Start();
 
         auto begin = TInstant::Now();
 
-        TVector<TTestSenderActor*> actors;
-        for (size_t pool = 0; pool < pools; pool++) {
-            auto actor = new TTestSenderActor();
-            auto actorId = actorSystem.Register(actor, TMailboxType::HTSwap, pool);
-            actor->Start(actor->SelfId(), msgCount);
-            actorSystem.Send(actorId, new TEvMsg());
-            actors.push_back(actor);
+        TVector<TTestSenderActor*> actors; 
+        for (size_t pool = 0; pool < pools; pool++) { 
+            auto actor = new TTestSenderActor([]() { 
+                DoTimedWork(100'000); 
+            }); 
+            auto actorId = actorSystem.Register(actor, TMailboxType::HTSwap, pool); 
+            actor->Start(actor->SelfId(), msgCount); 
+            actorSystem.Send(actorId, new TEvMsg()); 
+            actors.push_back(actor); 
         }
 
         while (true) {
-            size_t left = 0;
-            for (auto actor : actors) {
-                left += actor->GetCounter();
+            size_t left = 0; 
+            for (auto actor : actors) { 
+                left += actor->GetCounter(); 
             }
-            if (left == 0) {
+            if (left == 0) { 
                 break;
             }
             auto now = TInstant::Now();
-            UNIT_ASSERT_C(now - begin < TDuration::Seconds(5), "left " << left);
+            UNIT_ASSERT_C(now - begin < TDuration::Seconds(15), "left " << left); 
             Sleep(TDuration::MilliSeconds(1));
         }
 
-        for (size_t pool = 0; pool < pools; pool++) {
-            TVector<TExecutorThreadStats> stats;
-            TExecutorPoolStats poolStats;
-            actorSystem.GetPoolStats(pool, poolStats, stats);
-            // Sum all per-thread counters into the 0th element
-            for (ui32 idx = 1; idx < stats.size(); ++idx) {
-                stats[0].Aggregate(stats[idx]);
-            }
-
-            UNIT_ASSERT_VALUES_EQUAL(stats[0].ReceivedEvents, msgCount);
-            UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolActorRegistrations, 1);
+        for (size_t pool = 0; pool < pools; pool++) { 
+            TVector<TExecutorThreadStats> stats; 
+            TExecutorPoolStats poolStats; 
+            actorSystem.GetPoolStats(pool, poolStats, stats); 
+            // Sum all per-thread counters into the 0th element 
+            for (ui32 idx = 1; idx < stats.size(); ++idx) { 
+                stats[0].Aggregate(stats[idx]); 
+            } 
+
+            UNIT_ASSERT_VALUES_EQUAL(stats[0].ReceivedEvents, msgCount); 
+            UNIT_ASSERT_VALUES_EQUAL(stats[0].PreemptedEvents, msgCount); // every 100ms event should be preempted 
+            UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolActorRegistrations, 1); 
         }
-    }
-
-    Y_UNIT_TEST(ManyPoolsOneCpuSlowEvents) {
-        const size_t msgCount = 3;
-        const size_t pools = 4;
-        auto setup = GetActorSystemSetup(1);
-        for (size_t pool = 0; pool < pools; pool++) {
-            AddUnitedPool(setup);
-        }
-        TActorSystem actorSystem(setup);
-        actorSystem.Start();
-
-        auto begin = TInstant::Now();
-
-        TVector<TTestSenderActor*> actors;
-        for (size_t pool = 0; pool < pools; pool++) {
-            auto actor = new TTestSenderActor([]() {
-                DoTimedWork(100'000);
-            });
-            auto actorId = actorSystem.Register(actor, TMailboxType::HTSwap, pool);
-            actor->Start(actor->SelfId(), msgCount);
-            actorSystem.Send(actorId, new TEvMsg());
-            actors.push_back(actor);
-        }
-
-        while (true) {
-            size_t left = 0;
-            for (auto actor : actors) {
-                left += actor->GetCounter();
-            }
-            if (left == 0) {
-                break;
-            }
-            auto now = TInstant::Now();
-            UNIT_ASSERT_C(now - begin < TDuration::Seconds(15), "left " << left);
-            Sleep(TDuration::MilliSeconds(1));
-        }
-
-        for (size_t pool = 0; pool < pools; pool++) {
-            TVector<TExecutorThreadStats> stats;
-            TExecutorPoolStats poolStats;
-            actorSystem.GetPoolStats(pool, poolStats, stats);
-            // Sum all per-thread counters into the 0th element
-            for (ui32 idx = 1; idx < stats.size(); ++idx) {
-                stats[0].Aggregate(stats[idx]);
-            }
-
-            UNIT_ASSERT_VALUES_EQUAL(stats[0].ReceivedEvents, msgCount);
-            UNIT_ASSERT_VALUES_EQUAL(stats[0].PreemptedEvents, msgCount); // every 100ms event should be preempted
-            UNIT_ASSERT_VALUES_EQUAL(stats[0].PoolActorRegistrations, 1);
-        }
-    }
+    } 
 
-#endif
+#endif 
 
 }
diff --git a/library/cpp/actors/core/executor_thread.cpp b/library/cpp/actors/core/executor_thread.cpp
index 446b651efd..1fd93f1a42 100644
--- a/library/cpp/actors/core/executor_thread.cpp
+++ b/library/cpp/actors/core/executor_thread.cpp
@@ -7,18 +7,18 @@
 
 #include <library/cpp/actors/prof/tag.h>
 #include <library/cpp/actors/util/affinity.h>
-#include <library/cpp/actors/util/datetime.h>
+#include <library/cpp/actors/util/datetime.h> 
 #include <library/cpp/actors/util/thread.h>
 
 #ifdef BALLOC
 #include <library/cpp/balloc/optional/operators.h>
 #endif
 
-#ifdef _linux_
-#include <sys/syscall.h>
-#include <unistd.h>
-#endif
-
+#ifdef _linux_ 
+#include <sys/syscall.h> 
+#include <unistd.h> 
+#endif 
+ 
 #include <util/system/type_name.h>
 #include <util/system/datetime.h>
 
@@ -28,42 +28,42 @@ namespace NActors {
     constexpr TDuration TExecutorThread::DEFAULT_TIME_PER_MAILBOX;
 
     TExecutorThread::TExecutorThread(
-            TWorkerId workerId,
-            TWorkerId cpuId,
-            TActorSystem* actorSystem,
-            IExecutorPool* executorPool,
-            TMailboxTable* mailboxTable,
-            const TString& threadName,
-            TDuration timePerMailbox,
-            ui32 eventsPerMailbox)
-        : ActorSystem(actorSystem)
+            TWorkerId workerId, 
+            TWorkerId cpuId, 
+            TActorSystem* actorSystem, 
+            IExecutorPool* executorPool, 
+            TMailboxTable* mailboxTable, 
+            const TString& threadName, 
+            TDuration timePerMailbox, 
+            ui32 eventsPerMailbox) 
+        : ActorSystem(actorSystem) 
         , ExecutorPool(executorPool)
-        , Ctx(workerId, cpuId, actorSystem ? actorSystem->GetMaxActivityType() : 1)
+        , Ctx(workerId, cpuId, actorSystem ? actorSystem->GetMaxActivityType() : 1) 
         , ThreadName(threadName)
-    {
-        Ctx.Switch(
-            ExecutorPool,
-            mailboxTable,
-            NHPTimer::GetClockRate() * timePerMailbox.SecondsFloat(),
-            eventsPerMailbox,
-            ui64(-1), // infinite soft deadline
-            &Ctx.WorkerStats);
-    }
+    { 
+        Ctx.Switch( 
+            ExecutorPool, 
+            mailboxTable, 
+            NHPTimer::GetClockRate() * timePerMailbox.SecondsFloat(), 
+            eventsPerMailbox, 
+            ui64(-1), // infinite soft deadline 
+            &Ctx.WorkerStats); 
+    } 
 
     TActorId TExecutorThread::RegisterActor(IActor* actor, TMailboxType::EType mailboxType, ui32 poolId, const TActorId& parentId) {
         if (poolId == Max<ui32>())
-            return Ctx.Executor->Register(actor, mailboxType, ++RevolvingWriteCounter, parentId ? parentId : CurrentRecipient);
+            return Ctx.Executor->Register(actor, mailboxType, ++RevolvingWriteCounter, parentId ? parentId : CurrentRecipient); 
         else
             return ActorSystem->Register(actor, mailboxType, poolId, ++RevolvingWriteCounter, parentId ? parentId : CurrentRecipient);
     }
 
     TActorId TExecutorThread::RegisterActor(IActor* actor, TMailboxHeader* mailbox, ui32 hint, const TActorId& parentId) {
-        return Ctx.Executor->Register(actor, mailbox, hint, parentId ? parentId : CurrentRecipient);
+        return Ctx.Executor->Register(actor, mailbox, hint, parentId ? parentId : CurrentRecipient); 
     }
 
     void TExecutorThread::UnregisterActor(TMailboxHeader* mailbox, ui64 localActorId) {
         IActor* actor = mailbox->DetachActor(localActorId);
-        Ctx.DecrementActorsAliveByActivity(actor->GetActivityType());
+        Ctx.DecrementActorsAliveByActivity(actor->GetActivityType()); 
         DyingActors.push_back(THolder(actor));
     }
 
@@ -73,17 +73,17 @@ namespace NActors {
 
     void TExecutorThread::Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie) {
         ++CurrentActorScheduledEventsCounter;
-        Ctx.Executor->Schedule(deadline, ev, cookie, Ctx.WorkerId);
+        Ctx.Executor->Schedule(deadline, ev, cookie, Ctx.WorkerId); 
     }
 
     void TExecutorThread::Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie) {
         ++CurrentActorScheduledEventsCounter;
-        Ctx.Executor->Schedule(deadline, ev, cookie, Ctx.WorkerId);
+        Ctx.Executor->Schedule(deadline, ev, cookie, Ctx.WorkerId); 
     }
 
     void TExecutorThread::Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie) {
         ++CurrentActorScheduledEventsCounter;
-        Ctx.Executor->Schedule(delta, ev, cookie, Ctx.WorkerId);
+        Ctx.Executor->Schedule(delta, ev, cookie, Ctx.WorkerId); 
     }
 
     template <class T>
@@ -96,7 +96,7 @@ namespace NActors {
         } catch (...) {
             return "unknown-type";
         }
-    }
+    } 
 
     inline TString ActorTypeName(const IActor* actor, ui32 activityType) {
         return actor ? SafeTypeName(actor) : ("activityType_" + ToString(activityType) + " (destroyed)");
@@ -113,8 +113,8 @@ namespace NActors {
                 baseEv ? SafeTypeName(baseEv) : (ev ? ToString(ev->Type) : TString("nullptr")),
                 currentRecipient.ToString(),
                 SafeTypeName(actor));
-    }
-
+    } 
+ 
     inline void LwTraceSlowEvent(IEventHandle* ev, ui32 evTypeForTracing, const IActor* actor, ui32 poolId, ui32 activityType,
                                  const TActorId& currentRecipient, double eventMs) {
         // Event could have been destroyed by actor->Receive();
@@ -126,25 +126,25 @@ namespace NActors {
                 currentRecipient.ToString(),
                 ActorTypeName(actor, activityType));
     }
-
+ 
     template <typename TMailbox>
     void TExecutorThread::Execute(TMailbox* mailbox, ui32 hint) {
         Y_VERIFY_DEBUG(DyingActors.empty());
 
         bool reclaimAsFree = false;
 
-        NHPTimer::STime hpstart = GetCycleCountFast();
+        NHPTimer::STime hpstart = GetCycleCountFast(); 
         NHPTimer::STime hpprev = hpstart;
 
-        IActor* actor = nullptr;
+        IActor* actor = nullptr; 
         ui32 prevActivityType = std::numeric_limits<ui32>::max();
-        TActorId recipient;
-        for (ui32 executed = 0; executed < Ctx.EventsPerMailbox; ++executed) {
+        TActorId recipient; 
+        for (ui32 executed = 0; executed < Ctx.EventsPerMailbox; ++executed) { 
             TAutoPtr<IEventHandle> ev(mailbox->Pop());
             if (!!ev) {
                 NHPTimer::STime hpnow;
-                recipient = ev->GetRecipientRewrite();
-                if (actor = mailbox->FindActor(recipient.LocalId())) {
+                recipient = ev->GetRecipientRewrite(); 
+                if (actor = mailbox->FindActor(recipient.LocalId())) { 
                     TActorContext ctx(*mailbox, *this, hpprev, recipient);
                     TlsActivationContext = &ctx;
 
@@ -156,16 +156,16 @@ namespace NActors {
                     CurrentActorScheduledEventsCounter = 0;
 
                     if (executed == 0) {
-                        double usec = Ctx.AddActivationStats(AtomicLoad(&mailbox->ScheduleMoment), hpprev);
-                        if (usec > 500) {
-                            GLOBAL_LWPROBE(ACTORLIB_PROVIDER, SlowActivation, Ctx.PoolId, usec / 1000.0);
+                        double usec = Ctx.AddActivationStats(AtomicLoad(&mailbox->ScheduleMoment), hpprev); 
+                        if (usec > 500) { 
+                            GLOBAL_LWPROBE(ACTORLIB_PROVIDER, SlowActivation, Ctx.PoolId, usec / 1000.0); 
                         }
-                    }
+                    } 
 
-                    i64 usecDeliv = Ctx.AddEventDeliveryStats(ev->SendTime, hpprev);
+                    i64 usecDeliv = Ctx.AddEventDeliveryStats(ev->SendTime, hpprev); 
                     if (usecDeliv > 5000) {
                         double sinceActivationMs = NHPTimer::GetSeconds(hpprev - hpstart) * 1000.0;
-                        LwTraceSlowDelivery(ev.Get(), actor, Ctx.PoolId, CurrentRecipient, NHPTimer::GetSeconds(hpprev - ev->SendTime) * 1000.0, sinceActivationMs, executed);
+                        LwTraceSlowDelivery(ev.Get(), actor, Ctx.PoolId, CurrentRecipient, NHPTimer::GetSeconds(hpprev - ev->SendTime) * 1000.0, sinceActivationMs, executed); 
                     }
 
                     ui32 evTypeForTracing = ev->Type;
@@ -179,7 +179,7 @@ namespace NActors {
                     actor->Receive(ev, ctx);
 
                     size_t dyingActorsCnt = DyingActors.size();
-                    Ctx.UpdateActorsStats(dyingActorsCnt);
+                    Ctx.UpdateActorsStats(dyingActorsCnt); 
                     if (dyingActorsCnt) {
                         DropUnregistered();
                         actor = nullptr;
@@ -188,11 +188,11 @@ namespace NActors {
                     if (mailbox->IsEmpty()) // was not-free and become free, we must reclaim mailbox
                         reclaimAsFree = true;
 
-                    hpnow = GetCycleCountFast();
-                    NHPTimer::STime elapsed = Ctx.AddEventProcessingStats(hpprev, hpnow, activityType, CurrentActorScheduledEventsCounter);
-                    if (elapsed > 1000000) {
-                        LwTraceSlowEvent(ev.Get(), evTypeForTracing, actor, Ctx.PoolId, activityType, CurrentRecipient, NHPTimer::GetSeconds(elapsed) * 1000.0);
-                    }
+                    hpnow = GetCycleCountFast(); 
+                    NHPTimer::STime elapsed = Ctx.AddEventProcessingStats(hpprev, hpnow, activityType, CurrentActorScheduledEventsCounter); 
+                    if (elapsed > 1000000) { 
+                        LwTraceSlowEvent(ev.Get(), evTypeForTracing, actor, Ctx.PoolId, activityType, CurrentRecipient, NHPTimer::GetSeconds(elapsed) * 1000.0); 
+                    } 
 
                     // The actor might have been destroyed
                     if (actor)
@@ -204,99 +204,99 @@ namespace NActors {
                     if (nonDelivered.Get()) {
                         ActorSystem->Send(nonDelivered);
                     } else {
-                        Ctx.IncrementNonDeliveredEvents();
+                        Ctx.IncrementNonDeliveredEvents(); 
                     }
-                    hpnow = GetCycleCountFast();
+                    hpnow = GetCycleCountFast(); 
                 }
 
                 hpprev = hpnow;
 
-                // Soft preemption in united pool
-                if (Ctx.SoftDeadlineTs < (ui64)hpnow) {
-                    AtomicStore(&mailbox->ScheduleMoment, hpnow);
-                    Ctx.IncrementMailboxPushedOutBySoftPreemption();
-                    LWTRACK(MailboxPushedOutBySoftPreemption,
-                            Ctx.Orbit,
-                            Ctx.PoolId,
-                            Ctx.Executor->GetName(),
-                            executed + 1,
-                            CyclesToDuration(hpnow - hpstart),
-                            Ctx.WorkerId,
-                            recipient.ToString(),
-                            SafeTypeName(actor));
-                    break;
-                }
-
+                // Soft preemption in united pool 
+                if (Ctx.SoftDeadlineTs < (ui64)hpnow) { 
+                    AtomicStore(&mailbox->ScheduleMoment, hpnow); 
+                    Ctx.IncrementMailboxPushedOutBySoftPreemption(); 
+                    LWTRACK(MailboxPushedOutBySoftPreemption, 
+                            Ctx.Orbit, 
+                            Ctx.PoolId, 
+                            Ctx.Executor->GetName(), 
+                            executed + 1, 
+                            CyclesToDuration(hpnow - hpstart), 
+                            Ctx.WorkerId, 
+                            recipient.ToString(), 
+                            SafeTypeName(actor)); 
+                    break; 
+                } 
+ 
                 // time limit inside one mailbox passed, let others do some work
-                if (hpnow - hpstart > (i64)Ctx.TimePerMailboxTs) {
-                    AtomicStore(&mailbox->ScheduleMoment, hpnow);
-                    Ctx.IncrementMailboxPushedOutByTime();
-                    LWTRACK(MailboxPushedOutByTime,
-                            Ctx.Orbit,
-                            Ctx.PoolId,
-                            Ctx.Executor->GetName(),
-                            executed + 1,
-                            CyclesToDuration(hpnow - hpstart),
-                            Ctx.WorkerId,
-                            recipient.ToString(),
-                            SafeTypeName(actor));
+                if (hpnow - hpstart > (i64)Ctx.TimePerMailboxTs) { 
+                    AtomicStore(&mailbox->ScheduleMoment, hpnow); 
+                    Ctx.IncrementMailboxPushedOutByTime(); 
+                    LWTRACK(MailboxPushedOutByTime, 
+                            Ctx.Orbit, 
+                            Ctx.PoolId, 
+                            Ctx.Executor->GetName(), 
+                            executed + 1, 
+                            CyclesToDuration(hpnow - hpstart), 
+                            Ctx.WorkerId, 
+                            recipient.ToString(), 
+                            SafeTypeName(actor)); 
                     break;
                 }
 
-                if (executed + 1 == Ctx.EventsPerMailbox) {
-                    AtomicStore(&mailbox->ScheduleMoment, hpnow);
-                    Ctx.IncrementMailboxPushedOutByEventCount();
-                    LWTRACK(MailboxPushedOutByEventCount,
-                            Ctx.Orbit,
-                            Ctx.PoolId,
-                            Ctx.Executor->GetName(),
-                            executed + 1,
-                            CyclesToDuration(hpnow - hpstart),
-                            Ctx.WorkerId,
-                            recipient.ToString(),
-                            SafeTypeName(actor));
+                if (executed + 1 == Ctx.EventsPerMailbox) { 
+                    AtomicStore(&mailbox->ScheduleMoment, hpnow); 
+                    Ctx.IncrementMailboxPushedOutByEventCount(); 
+                    LWTRACK(MailboxPushedOutByEventCount, 
+                            Ctx.Orbit, 
+                            Ctx.PoolId, 
+                            Ctx.Executor->GetName(), 
+                            executed + 1, 
+                            CyclesToDuration(hpnow - hpstart), 
+                            Ctx.WorkerId, 
+                            recipient.ToString(), 
+                            SafeTypeName(actor)); 
                     break;
                 }
             } else {
                 if (executed == 0)
-                    Ctx.IncrementEmptyMailboxActivation();
-                LWTRACK(MailboxEmpty,
-                        Ctx.Orbit,
-                        Ctx.PoolId,
-                        Ctx.Executor->GetName(),
-                        executed,
-                        CyclesToDuration(GetCycleCountFast() - hpstart),
-                        Ctx.WorkerId,
-                        recipient.ToString(),
-                        SafeTypeName(actor));
+                    Ctx.IncrementEmptyMailboxActivation(); 
+                LWTRACK(MailboxEmpty, 
+                        Ctx.Orbit, 
+                        Ctx.PoolId, 
+                        Ctx.Executor->GetName(), 
+                        executed, 
+                        CyclesToDuration(GetCycleCountFast() - hpstart), 
+                        Ctx.WorkerId, 
+                        recipient.ToString(), 
+                        SafeTypeName(actor)); 
                 break; // empty queue, leave
             }
         }
 
         NProfiling::TMemoryTagScope::Reset(0);
         TlsActivationContext = nullptr;
-        UnlockFromExecution(mailbox, Ctx.Executor, reclaimAsFree, hint, Ctx.WorkerId, RevolvingWriteCounter);
-    }
-
-    TThreadId TExecutorThread::GetThreadId() const {
-#ifdef _linux_
-        while (AtomicLoad(&ThreadId) == UnknownThreadId) {
-            NanoSleep(1000);
-        }
-#endif
-        return ThreadId;
+        UnlockFromExecution(mailbox, Ctx.Executor, reclaimAsFree, hint, Ctx.WorkerId, RevolvingWriteCounter); 
     }
 
+    TThreadId TExecutorThread::GetThreadId() const { 
+#ifdef _linux_ 
+        while (AtomicLoad(&ThreadId) == UnknownThreadId) { 
+            NanoSleep(1000); 
+        } 
+#endif 
+        return ThreadId; 
+    } 
+ 
     void* TExecutorThread::ThreadProc() {
-#ifdef _linux_
-        pid_t tid = syscall(SYS_gettid);
-        AtomicSet(ThreadId, (ui64)tid);
-#endif
-
+#ifdef _linux_ 
+        pid_t tid = syscall(SYS_gettid); 
+        AtomicSet(ThreadId, (ui64)tid); 
+#endif 
+ 
 #ifdef BALLOC
         ThreadDisableBalloc();
 #endif
-
+ 
         if (ThreadName) {
             ::SetCurrentThreadName(ThreadName);
         }
@@ -304,20 +304,20 @@ namespace NActors {
         ExecutorPool->SetRealTimeMode();
         TAffinityGuard affinity(ExecutorPool->Affinity());
 
-        NHPTimer::STime hpnow = GetCycleCountFast();
+        NHPTimer::STime hpnow = GetCycleCountFast(); 
         NHPTimer::STime hpprev = hpnow;
         ui64 execCount = 0;
         ui64 readyActivationCount = 0;
         i64 execCycles = 0;
         i64 nonExecCycles = 0;
-
+ 
         for (;;) {
-            if (ui32 activation = ExecutorPool->GetReadyActivation(Ctx, ++RevolvingReadCounter)) {
-                LWTRACK(ActivationBegin, Ctx.Orbit, Ctx.CpuId, Ctx.PoolId, Ctx.WorkerId, NHPTimer::GetSeconds(Ctx.Lease.GetPreciseExpireTs()) * 1e3);
+            if (ui32 activation = ExecutorPool->GetReadyActivation(Ctx, ++RevolvingReadCounter)) { 
+                LWTRACK(ActivationBegin, Ctx.Orbit, Ctx.CpuId, Ctx.PoolId, Ctx.WorkerId, NHPTimer::GetSeconds(Ctx.Lease.GetPreciseExpireTs()) * 1e3); 
                 readyActivationCount++;
-                if (TMailboxHeader* header = Ctx.MailboxTable->Get(activation)) {
+                if (TMailboxHeader* header = Ctx.MailboxTable->Get(activation)) { 
                     if (header->LockForExecution()) {
-                        hpnow = GetCycleCountFast();
+                        hpnow = GetCycleCountFast(); 
                         nonExecCycles += hpnow - hpprev;
                         hpprev = hpnow;
                         switch (header->Type) {
@@ -337,27 +337,27 @@ namespace NActors {
                                 Execute(static_cast<TMailboxTable::TTinyReadAsFilledMailbox*>(header), activation);
                                 break;
                         }
-                        hpnow = GetCycleCountFast();
+                        hpnow = GetCycleCountFast(); 
                         execCycles += hpnow - hpprev;
                         hpprev = hpnow;
                         execCount++;
                         if (execCycles + nonExecCycles > 39000000) { // every 15 ms at 2.6GHz, so 1000 items is 15 sec (solomon interval)
-                            LWPROBE(ExecutorThreadStats, ExecutorPool->PoolId, ExecutorPool->GetName(), Ctx.WorkerId,
+                            LWPROBE(ExecutorThreadStats, ExecutorPool->PoolId, ExecutorPool->GetName(), Ctx.WorkerId, 
                                     execCount, readyActivationCount,
                                     NHPTimer::GetSeconds(execCycles) * 1000.0, NHPTimer::GetSeconds(nonExecCycles) * 1000.0);
                             execCount = 0;
                             readyActivationCount = 0;
                             execCycles = 0;
                             nonExecCycles = 0;
-                            Ctx.UpdateThreadTime();
+                            Ctx.UpdateThreadTime(); 
                         }
                     }
                 }
-                LWTRACK(ActivationEnd, Ctx.Orbit, Ctx.CpuId, Ctx.PoolId, Ctx.WorkerId);
-                Ctx.Orbit.Reset();
-            } else { // no activation means PrepareStop was called so thread must terminate
+                LWTRACK(ActivationEnd, Ctx.Orbit, Ctx.CpuId, Ctx.PoolId, Ctx.WorkerId); 
+                Ctx.Orbit.Reset(); 
+            } else { // no activation means PrepareStop was called so thread must terminate 
                 break;
-            }
+            } 
         }
         return nullptr;
     }
diff --git a/library/cpp/actors/core/executor_thread.h b/library/cpp/actors/core/executor_thread.h
index 9d3c573f0d..5599c82e58 100644
--- a/library/cpp/actors/core/executor_thread.h
+++ b/library/cpp/actors/core/executor_thread.h
@@ -5,23 +5,23 @@
 #include "actor.h"
 #include "actorsystem.h"
 #include "callstack.h"
-#include "probes.h"
-#include "worker_context.h"
-
-#include <library/cpp/actors/util/datetime.h>
+#include "probes.h" 
+#include "worker_context.h" 
 
+#include <library/cpp/actors/util/datetime.h> 
+ 
 #include <util/system/thread.h>
 
 namespace NActors {
-
+ 
     class TExecutorThread: public ISimpleThread {
     public:
         static constexpr TDuration DEFAULT_TIME_PER_MAILBOX =
             TDuration::MilliSeconds(10);
         static constexpr ui32 DEFAULT_EVENTS_PER_MAILBOX = 100;
 
-        TExecutorThread(TWorkerId workerId,
-                        TWorkerId cpuId,
+        TExecutorThread(TWorkerId workerId, 
+                        TWorkerId cpuId, 
                         TActorSystem* actorSystem,
                         IExecutorPool* executorPool,
                         TMailboxTable* mailboxTable,
@@ -29,16 +29,16 @@ namespace NActors {
                         TDuration timePerMailbox = DEFAULT_TIME_PER_MAILBOX,
                         ui32 eventsPerMailbox = DEFAULT_EVENTS_PER_MAILBOX);
 
-        TExecutorThread(TWorkerId workerId,
-                        TActorSystem* actorSystem,
-                        IExecutorPool* executorPool,
-                        TMailboxTable* mailboxTable,
-                        const TString& threadName,
-                        TDuration timePerMailbox = DEFAULT_TIME_PER_MAILBOX,
-                        ui32 eventsPerMailbox = DEFAULT_EVENTS_PER_MAILBOX)
-            : TExecutorThread(workerId, 0, actorSystem, executorPool, mailboxTable, threadName, timePerMailbox, eventsPerMailbox)
-        {}
-
+        TExecutorThread(TWorkerId workerId, 
+                        TActorSystem* actorSystem, 
+                        IExecutorPool* executorPool, 
+                        TMailboxTable* mailboxTable, 
+                        const TString& threadName, 
+                        TDuration timePerMailbox = DEFAULT_TIME_PER_MAILBOX, 
+                        ui32 eventsPerMailbox = DEFAULT_EVENTS_PER_MAILBOX) 
+            : TExecutorThread(workerId, 0, actorSystem, executorPool, mailboxTable, threadName, timePerMailbox, eventsPerMailbox) 
+        {} 
+ 
         TActorId RegisterActor(IActor* actor, TMailboxType::EType mailboxType = TMailboxType::HTSwap, ui32 poolId = Max<ui32>(),
                                const TActorId& parentId = TActorId());
         TActorId RegisterActor(IActor* actor, TMailboxHeader* mailbox, ui32 hint, const TActorId& parentId = TActorId());
@@ -50,22 +50,22 @@ namespace NActors {
         void Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie = nullptr);
         void Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie = nullptr);
 
-        bool Send(TAutoPtr<IEventHandle> ev) {
-#ifdef USE_ACTOR_CALLSTACK
-            ev->Callstack = TCallstack::GetTlsCallstack();
-            ev->Callstack.Trace();
+        bool Send(TAutoPtr<IEventHandle> ev) { 
+#ifdef USE_ACTOR_CALLSTACK 
+            ev->Callstack = TCallstack::GetTlsCallstack(); 
+            ev->Callstack.Trace(); 
 #endif
-            Ctx.IncrementSentEvents();
-            return ActorSystem->Send(ev);
+            Ctx.IncrementSentEvents(); 
+            return ActorSystem->Send(ev); 
         }
 
-        void GetCurrentStats(TExecutorThreadStats& statsCopy) const {
-            Ctx.GetCurrentStats(statsCopy);
+        void GetCurrentStats(TExecutorThreadStats& statsCopy) const { 
+            Ctx.GetCurrentStats(statsCopy); 
         }
 
-        TThreadId GetThreadId() const; // blocks, must be called after Start()
-        TWorkerId GetWorkerId() const { return Ctx.WorkerId; }
-
+        TThreadId GetThreadId() const; // blocks, must be called after Start() 
+        TWorkerId GetWorkerId() const { return Ctx.WorkerId; } 
+ 
     private:
         void* ThreadProc();
 
@@ -76,37 +76,37 @@ namespace NActors {
         TActorSystem* const ActorSystem;
 
     private:
-        // Pool-specific
+        // Pool-specific 
         IExecutorPool* const ExecutorPool;
 
-        // Event-specific (currently executing)
+        // Event-specific (currently executing) 
         TVector<THolder<IActor>> DyingActors;
         TActorId CurrentRecipient;
-        ui64 CurrentActorScheduledEventsCounter = 0;
+        ui64 CurrentActorScheduledEventsCounter = 0; 
 
-        // Thread-specific
-        TWorkerContext Ctx;
-        ui64 RevolvingReadCounter = 0;
-        ui64 RevolvingWriteCounter = 0;
+        // Thread-specific 
+        TWorkerContext Ctx; 
+        ui64 RevolvingReadCounter = 0; 
+        ui64 RevolvingWriteCounter = 0; 
         const TString ThreadName;
-        volatile TThreadId ThreadId = UnknownThreadId;
+        volatile TThreadId ThreadId = UnknownThreadId; 
     };
 
     template <typename TMailbox>
-    void UnlockFromExecution(TMailbox* mailbox, IExecutorPool* executorPool, bool asFree, ui32 hint, TWorkerId workerId, ui64& revolvingWriteCounter) {
+    void UnlockFromExecution(TMailbox* mailbox, IExecutorPool* executorPool, bool asFree, ui32 hint, TWorkerId workerId, ui64& revolvingWriteCounter) { 
         mailbox->UnlockFromExecution1();
         const bool needReschedule1 = (nullptr != mailbox->Head());
         if (!asFree) {
             if (mailbox->UnlockFromExecution2(needReschedule1)) {
-                RelaxedStore<NHPTimer::STime>(&mailbox->ScheduleMoment, GetCycleCountFast());
+                RelaxedStore<NHPTimer::STime>(&mailbox->ScheduleMoment, GetCycleCountFast()); 
                 executorPool->ScheduleActivationEx(hint, ++revolvingWriteCounter);
             }
         } else {
             if (mailbox->UnlockAsFree(needReschedule1)) {
-                RelaxedStore<NHPTimer::STime>(&mailbox->ScheduleMoment, GetCycleCountFast());
+                RelaxedStore<NHPTimer::STime>(&mailbox->ScheduleMoment, GetCycleCountFast()); 
                 executorPool->ScheduleActivationEx(hint, ++revolvingWriteCounter);
             }
-            executorPool->ReclaimMailbox(TMailbox::MailboxType, hint, workerId, ++revolvingWriteCounter);
+            executorPool->ReclaimMailbox(TMailbox::MailboxType, hint, workerId, ++revolvingWriteCounter); 
         }
     }
 }
diff --git a/library/cpp/actors/core/lease.h b/library/cpp/actors/core/lease.h
index 650ae7b122..3bde281960 100644
--- a/library/cpp/actors/core/lease.h
+++ b/library/cpp/actors/core/lease.h
@@ -1,56 +1,56 @@
-#pragma once
-
-#include "defs.h"
-
-namespace NActors {
-    // Value representing specific worker's permission for exclusive use of CPU till specific deadline
-    struct TLease {
-        // Lower WorkerBits store current fast worker id
-        // All other higher bits store expiration (hard preemption) timestamp
-        using TValue = ui64;
-        TValue Value;
-
-        static constexpr ui64 WorkerIdMask = ui64((1ull << WorkerBits) - 1);
-        static constexpr ui64 ExpireTsMask = ~WorkerIdMask;
-
-        explicit constexpr TLease(ui64 value)
-            : Value(value)
-        {}
-
-        constexpr TLease(TWorkerId workerId, ui64 expireTs)
-            : Value((workerId & WorkerIdMask) | (expireTs & ExpireTsMask))
-        {}
-
-        TWorkerId GetWorkerId() const {
-            return Value & WorkerIdMask;
-        }
-
-        TLease NeverExpire() const {
-            return TLease(Value | ExpireTsMask);
-        }
-
-        bool IsNeverExpiring() const {
-            return (Value & ExpireTsMask) == ExpireTsMask;
-        }
-
-        ui64 GetExpireTs() const {
-            // Do not truncate worker id
-            // NOTE: it decrease accuracy, but improves performance
-            return Value;
-        }
-
-        ui64 GetPreciseExpireTs() const {
-            return Value & ExpireTsMask;
-        }
-
-        operator TValue() const {
-            return Value;
-        }
-    };
-
-    // Special expire timestamp values
-    static constexpr ui64 NeverExpire = ui64(-1);
-
-    // Special hard-preemption-in-progress lease
-    static constexpr TLease HardPreemptionLease = TLease(TLease::WorkerIdMask, NeverExpire);
-}
+#pragma once 
+ 
+#include "defs.h" 
+ 
+namespace NActors { 
+    // Value representing specific worker's permission for exclusive use of CPU till specific deadline 
+    struct TLease { 
+        // Lower WorkerBits store current fast worker id 
+        // All other higher bits store expiration (hard preemption) timestamp 
+        using TValue = ui64; 
+        TValue Value; 
+ 
+        static constexpr ui64 WorkerIdMask = ui64((1ull << WorkerBits) - 1); 
+        static constexpr ui64 ExpireTsMask = ~WorkerIdMask; 
+ 
+        explicit constexpr TLease(ui64 value) 
+            : Value(value) 
+        {} 
+ 
+        constexpr TLease(TWorkerId workerId, ui64 expireTs) 
+            : Value((workerId & WorkerIdMask) | (expireTs & ExpireTsMask)) 
+        {} 
+ 
+        TWorkerId GetWorkerId() const { 
+            return Value & WorkerIdMask; 
+        } 
+ 
+        TLease NeverExpire() const { 
+            return TLease(Value | ExpireTsMask); 
+        } 
+ 
+        bool IsNeverExpiring() const { 
+            return (Value & ExpireTsMask) == ExpireTsMask; 
+        } 
+ 
+        ui64 GetExpireTs() const { 
+            // Do not truncate worker id 
+            // NOTE: it decrease accuracy, but improves performance 
+            return Value; 
+        } 
+ 
+        ui64 GetPreciseExpireTs() const { 
+            return Value & ExpireTsMask; 
+        } 
+ 
+        operator TValue() const { 
+            return Value; 
+        } 
+    }; 
+ 
+    // Special expire timestamp values 
+    static constexpr ui64 NeverExpire = ui64(-1); 
+ 
+    // Special hard-preemption-in-progress lease 
+    static constexpr TLease HardPreemptionLease = TLease(TLease::WorkerIdMask, NeverExpire); 
+} 
diff --git a/library/cpp/actors/core/log.cpp b/library/cpp/actors/core/log.cpp
index 5f63b5af58..c05a32f020 100644
--- a/library/cpp/actors/core/log.cpp
+++ b/library/cpp/actors/core/log.cpp
@@ -311,13 +311,13 @@ namespace NActors {
 
     void TLoggerActor::RenderComponentPriorities(IOutputStream& str) {
         using namespace NLog;
-        HTML(str) {
+        HTML(str) { 
             H4() {
                 str << "Priority Settings for the Components";
             }
-            TABLE_SORTABLE_CLASS("table") {
-                TABLEHEAD() {
-                    TABLER() {
+            TABLE_SORTABLE_CLASS("table") { 
+                TABLEHEAD() { 
+                    TABLER() { 
                         TABLEH() {
                             str << "Component";
                         }
@@ -330,16 +330,16 @@ namespace NActors {
                         TABLEH() {
                             str << "Sampling Rate";
                         }
-                    }
-                }
-                TABLEBODY() {
+                    } 
+                } 
+                TABLEBODY() { 
                     for (EComponent i = Settings->MinVal; i < Settings->MaxVal; i++) {
                         auto name = Settings->ComponentName(i);
                         if (!*name)
                             continue;
                         NLog::TComponentSettings componentSettings = Settings->GetComponentSettings(i);
 
-                        TABLER() {
+                        TABLER() { 
                             TABLED() {
                                 str << "<a href='logger?c=" << i << "'>" << name << "</a>";
                             }
@@ -352,11 +352,11 @@ namespace NActors {
                             TABLED() {
                                 str << componentSettings.Raw.X.SamplingRate;
                             }
-                        }
+                        } 
                     }
-                }
-            }
-        }
+                } 
+            } 
+        } 
     }
 
     /*
@@ -412,53 +412,53 @@ namespace NActors {
         if (hasComponent && !hasPriority && !hasSamplingPriority && !hasSamplingRate) {
             NLog::TComponentSettings componentSettings = Settings->GetComponentSettings(component);
             ui32 samplingRate = componentSettings.Raw.X.SamplingRate;
-            HTML(str) {
-                DIV_CLASS("row") {
-                    DIV_CLASS("col-md-12") {
+            HTML(str) { 
+                DIV_CLASS("row") { 
+                    DIV_CLASS("col-md-12") { 
                         H4() {
                             str << "Current log settings for " << Settings->ComponentName(component) << Endl;
                         }
-                        UL() {
-                            LI() {
+                        UL() { 
+                            LI() { 
                                 str << "Priority: "
                                     << NLog::PriorityToString(NLog::EPrio(componentSettings.Raw.X.Level));
-                            }
-                            LI() {
+                            } 
+                            LI() { 
                                 str << "Sampling priority: "
                                     << NLog::PriorityToString(NLog::EPrio(componentSettings.Raw.X.SamplingLevel));
-                            }
-                            LI() {
+                            } 
+                            LI() { 
                                 str << "Sampling rate: "
                                     << samplingRate;
-                            }
-                        }
-                    }
-                }
+                            } 
+                        } 
+                    } 
+                } 
 
-                DIV_CLASS("row") {
-                    DIV_CLASS("col-md-12") {
+                DIV_CLASS("row") { 
+                    DIV_CLASS("col-md-12") { 
                         H4() {
                             str << "Change priority" << Endl;
                         }
-                        UL() {
+                        UL() { 
                             for (int p = NLog::PRI_EMERG; p <= NLog::PRI_TRACE; ++p) {
-                                LI() {
+                                LI() { 
                                     str << "<a href='logger?c=" << component << "&p=" << p << "'>"
                                         << NLog::PriorityToString(NLog::EPrio(p)) << "</a>";
-                                }
+                                } 
                             }
-                        }
+                        } 
                         H4() {
                             str << "Change sampling priority" << Endl;
                         }
-                        UL() {
+                        UL() { 
                             for (int p = NLog::PRI_EMERG; p <= NLog::PRI_TRACE; ++p) {
-                                LI() {
+                                LI() { 
                                     str << "<a href='logger?c=" << component << "&sp=" << p << "'>"
                                         << NLog::PriorityToString(NLog::EPrio(p)) << "</a>";
-                                }
+                                } 
                             }
-                        }
+                        } 
                         H4() {
                             str << "Change sampling rate" << Endl;
                         }
@@ -470,9 +470,9 @@ namespace NActors {
                         H4() {
                             str << "<a href='logger'>Cancel</a>" << Endl;
                         }
-                    }
-                }
-            }
+                    } 
+                } 
+            } 
 
         } else {
             TString explanation;
@@ -489,64 +489,64 @@ namespace NActors {
                 Settings->SetAllowDrop(allowDrop);
             }
 
-            HTML(str) {
+            HTML(str) { 
                 if (!explanation.empty()) {
-                    DIV_CLASS("row") {
+                    DIV_CLASS("row") { 
                         DIV_CLASS("col-md-12 alert alert-info") {
                             str << explanation;
                         }
-                    }
+                    } 
                 }
 
-                DIV_CLASS("row") {
-                    DIV_CLASS("col-md-6") {
+                DIV_CLASS("row") { 
+                    DIV_CLASS("col-md-6") { 
                         RenderComponentPriorities(str);
                     }
                     DIV_CLASS("col-md-6") {
                         H4() {
                             str << "Change priority for all components";
                         }
-                        TABLE_CLASS("table table-condensed") {
-                            TABLEHEAD() {
-                                TABLER() {
+                        TABLE_CLASS("table table-condensed") { 
+                            TABLEHEAD() { 
+                                TABLER() { 
                                     TABLEH() {
                                         str << "Priority";
                                     }
-                                }
-                            }
-                            TABLEBODY() {
+                                } 
+                            } 
+                            TABLEBODY() { 
                                 for (int p = NLog::PRI_EMERG; p <= NLog::PRI_TRACE; ++p) {
-                                    TABLER() {
+                                    TABLER() { 
                                         TABLED() {
                                             str << "<a href = 'logger?c=-1&p=" << p << "'>"
                                                 << NLog::PriorityToString(NLog::EPrio(p)) << "</a>";
-                                        }
-                                    }
+                                        } 
+                                    } 
                                 }
-                            }
-                        }
+                            } 
+                        } 
                         H4() {
                             str << "Change sampling priority for all components";
                         }
-                        TABLE_CLASS("table table-condensed") {
-                            TABLEHEAD() {
-                                TABLER() {
+                        TABLE_CLASS("table table-condensed") { 
+                            TABLEHEAD() { 
+                                TABLER() { 
                                     TABLEH() {
                                         str << "Priority";
                                     }
-                                }
-                            }
-                            TABLEBODY() {
+                                } 
+                            } 
+                            TABLEBODY() { 
                                 for (int p = NLog::PRI_EMERG; p <= NLog::PRI_TRACE; ++p) {
-                                    TABLER() {
+                                    TABLER() { 
                                         TABLED() {
                                             str << "<a href = 'logger?c=-1&sp=" << p << "'>"
                                                 << NLog::PriorityToString(NLog::EPrio(p)) << "</a>";
-                                        }
-                                    }
+                                        } 
+                                    } 
                                 }
-                            }
-                        }
+                            } 
+                        } 
                         H4() {
                             str << "Change sampling rate for all components";
                         }
@@ -563,27 +563,27 @@ namespace NActors {
                         str << "<input type=\"hidden\" name=\"allowdrop\" value=\"" << (Settings->AllowDrop ? "0" : "1") << "\"/>" << Endl;
                         str << "<input class=\"btn btn-primary\" type=\"submit\" value=\"" << (Settings->AllowDrop ? "Disable" : "Enable") << "\"/>" << Endl;
                         str << "</form>" << Endl;
-                    }
-                }
+                    } 
+                } 
                 Metrics->GetOutputHtml(str);
-            }
+            } 
         }
 
         ctx.Send(ev->Sender, new NMon::TEvHttpInfoRes(str.Str()));
     }
 
-    constexpr size_t TimeBufSize = 512;
-
+    constexpr size_t TimeBufSize = 512; 
+ 
     bool TLoggerActor::OutputRecord(TInstant time, NLog::EPrio priority, NLog::EComponent component,
                                     const TString& formatted) noexcept try {
         const auto logPrio = ::ELogPriority(ui16(priority));
 
-        char buf[TimeBufSize];
+        char buf[TimeBufSize]; 
         switch (Settings->Format) {
             case NActors::NLog::TSettings::PLAIN_FULL_FORMAT: {
                 TStringBuilder logRecord;
                 if (Settings->UseLocalTimestamps) {
-                    logRecord << FormatLocalTimestamp(time, buf);
+                    logRecord << FormatLocalTimestamp(time, buf); 
                 } else {
                     logRecord << time;
                 }
@@ -649,12 +649,12 @@ namespace NActors {
         Become(&TThis::StateFunc);
     }
 
-    const char* TLoggerActor::FormatLocalTimestamp(TInstant time, char* buf) {
+    const char* TLoggerActor::FormatLocalTimestamp(TInstant time, char* buf) { 
         struct tm localTime;
         time.LocalTime(&localTime);
-        int r = strftime(buf, TimeBufSize, "%Y-%m-%d-%H-%M-%S", &localTime);
-        Y_VERIFY(r != 0);
-        return buf;
+        int r = strftime(buf, TimeBufSize, "%Y-%m-%d-%H-%M-%S", &localTime); 
+        Y_VERIFY(r != 0); 
+        return buf; 
     }
 
     TAutoPtr<TLogBackend> CreateSysLogBackend(const TString& ident,
diff --git a/library/cpp/actors/core/log.h b/library/cpp/actors/core/log.h
index c11a7cf3c1..32a5abfed2 100644
--- a/library/cpp/actors/core/log.h
+++ b/library/cpp/actors/core/log.h
@@ -255,7 +255,7 @@ namespace NActors {
         void RenderComponentPriorities(IOutputStream& str);
         void LogIgnoredCount(TInstant now);
         void WriteMessageStat(const NLog::TEvLog& ev);
-        static const char* FormatLocalTimestamp(TInstant time, char* buf);
+        static const char* FormatLocalTimestamp(TInstant time, char* buf); 
     };
 
     ////////////////////////////////////////////////////////////////////////////////
diff --git a/library/cpp/actors/core/mailbox.cpp b/library/cpp/actors/core/mailbox.cpp
index d84b4f9e46..92763dbb1e 100644
--- a/library/cpp/actors/core/mailbox.cpp
+++ b/library/cpp/actors/core/mailbox.cpp
@@ -1,8 +1,8 @@
 #include "mailbox.h"
 #include "actorsystem.h"
 
-#include <library/cpp/actors/util/datetime.h>
-
+#include <library/cpp/actors/util/datetime.h> 
+ 
 #include <util/system/sanitizers.h>
 
 namespace NActors {
@@ -183,7 +183,7 @@ namespace NActors {
 #endif
                     mailbox->Queue.Push(ev.Release());
                     if (mailbox->MarkForSchedule()) {
-                        RelaxedStore<NHPTimer::STime>(&mailbox->ScheduleMoment, GetCycleCountFast());
+                        RelaxedStore<NHPTimer::STime>(&mailbox->ScheduleMoment, GetCycleCountFast()); 
                         executorPool->ScheduleActivation(hint);
                     }
                 }
@@ -207,7 +207,7 @@ namespace NActors {
 #endif
                     mailbox->QueueWriter.Push(ev.Release());
                     if (mailbox->MarkForSchedule()) {
-                        RelaxedStore<NHPTimer::STime>(&mailbox->ScheduleMoment, GetCycleCountFast());
+                        RelaxedStore<NHPTimer::STime>(&mailbox->ScheduleMoment, GetCycleCountFast()); 
                         executorPool->ScheduleActivation(hint);
                     }
                 }
@@ -219,7 +219,7 @@ namespace NActors {
 #endif
                     mailbox->Queue.Push(ev.Release());
                     if (mailbox->MarkForSchedule()) {
-                        RelaxedStore<NHPTimer::STime>(&mailbox->ScheduleMoment, GetCycleCountFast());
+                        RelaxedStore<NHPTimer::STime>(&mailbox->ScheduleMoment, GetCycleCountFast()); 
                         executorPool->ScheduleActivation(hint);
                     }
                 }
@@ -234,7 +234,7 @@ namespace NActors {
 #endif
                     mailbox->Queue.Push(ev.Release());
                     if (mailbox->MarkForSchedule()) {
-                        RelaxedStore<NHPTimer::STime>(&mailbox->ScheduleMoment, GetCycleCountFast());
+                        RelaxedStore<NHPTimer::STime>(&mailbox->ScheduleMoment, GetCycleCountFast()); 
                         executorPool->ScheduleActivation(hint);
                     }
                 }
@@ -249,7 +249,7 @@ namespace NActors {
 #endif
                     mailbox->Queue.Push(ev.Release());
                     if (mailbox->MarkForSchedule()) {
-                        RelaxedStore<NHPTimer::STime>(&mailbox->ScheduleMoment, GetCycleCountFast());
+                        RelaxedStore<NHPTimer::STime>(&mailbox->ScheduleMoment, GetCycleCountFast()); 
                         executorPool->ScheduleActivation(hint);
                     }
                 }
@@ -347,7 +347,7 @@ namespace NActors {
 
     TMailboxHeader::TMailboxHeader(TMailboxType::EType type)
         : ExecutionState(TExecutionState::Free)
-        , Reserved(0)
+        , Reserved(0) 
         , Type(type)
         , ActorPack(TMailboxActorPack::Simple)
         , Knobs(0)
diff --git a/library/cpp/actors/core/mailbox.h b/library/cpp/actors/core/mailbox.h
index 0bd9c4d314..4022915e1d 100644
--- a/library/cpp/actors/core/mailbox.h
+++ b/library/cpp/actors/core/mailbox.h
@@ -54,7 +54,7 @@ namespace NActors {
         };
 
         volatile ui32 ExecutionState;
-        ui32 Reserved : 4; // never changes, always zero
+        ui32 Reserved : 4; // never changes, always zero 
         ui32 Type : 4; // never changes
         ui32 ActorPack : 2;
         ui32 Knobs : 22;
diff --git a/library/cpp/actors/core/mon_stats.h b/library/cpp/actors/core/mon_stats.h
index d55552af0c..e2db1e32e6 100644
--- a/library/cpp/actors/core/mon_stats.h
+++ b/library/cpp/actors/core/mon_stats.h
@@ -63,15 +63,15 @@ namespace NActors {
     };
 
     struct TExecutorThreadStats {
-        ui64 SentEvents = 0;
-        ui64 ReceivedEvents = 0;
-        ui64 PreemptedEvents = 0; // Number of events experienced hard preemption
-        ui64 NonDeliveredEvents = 0;
-        ui64 EmptyMailboxActivation = 0;
-        ui64 CpuNs = 0; // nanoseconds thread was executing on CPU (accounts for preemtion)
-        NHPTimer::STime ElapsedTicks = 0;
-        NHPTimer::STime ParkedTicks = 0;
-        NHPTimer::STime BlockedTicks = 0;
+        ui64 SentEvents = 0; 
+        ui64 ReceivedEvents = 0; 
+        ui64 PreemptedEvents = 0; // Number of events experienced hard preemption 
+        ui64 NonDeliveredEvents = 0; 
+        ui64 EmptyMailboxActivation = 0; 
+        ui64 CpuNs = 0; // nanoseconds thread was executing on CPU (accounts for preemtion) 
+        NHPTimer::STime ElapsedTicks = 0; 
+        NHPTimer::STime ParkedTicks = 0; 
+        NHPTimer::STime BlockedTicks = 0; 
         TLogHistogram ActivationTimeHistogram;
         TLogHistogram EventDeliveryTimeHistogram;
         TLogHistogram EventProcessingCountHistogram;
@@ -80,19 +80,19 @@ namespace NActors {
         TVector<ui64> ReceivedEventsByActivity;
         TVector<i64> ActorsAliveByActivity; // the sum should be positive, but per-thread might be negative
         TVector<ui64> ScheduledEventsByActivity;
-        ui64 PoolActorRegistrations = 0;
-        ui64 PoolDestroyedActors = 0;
-        ui64 PoolAllocatedMailboxes = 0;
-        ui64 MailboxPushedOutBySoftPreemption = 0;
-        ui64 MailboxPushedOutByTime = 0;
-        ui64 MailboxPushedOutByEventCount = 0;
+        ui64 PoolActorRegistrations = 0; 
+        ui64 PoolDestroyedActors = 0; 
+        ui64 PoolAllocatedMailboxes = 0; 
+        ui64 MailboxPushedOutBySoftPreemption = 0; 
+        ui64 MailboxPushedOutByTime = 0; 
+        ui64 MailboxPushedOutByEventCount = 0; 
 
         TExecutorThreadStats(size_t activityVecSize = 1) // must be not empty as 0 used as default
-            : ElapsedTicksByActivity(activityVecSize)
+            : ElapsedTicksByActivity(activityVecSize) 
             , ReceivedEventsByActivity(activityVecSize)
             , ActorsAliveByActivity(activityVecSize)
             , ScheduledEventsByActivity(activityVecSize)
-        {}
+        {} 
 
         template <typename T>
         static void AggregateOne(TVector<T>& self, const TVector<T>& other) {
@@ -107,14 +107,14 @@ namespace NActors {
         void Aggregate(const TExecutorThreadStats& other) {
             SentEvents += RelaxedLoad(&other.SentEvents);
             ReceivedEvents += RelaxedLoad(&other.ReceivedEvents);
-            PreemptedEvents += RelaxedLoad(&other.PreemptedEvents);
+            PreemptedEvents += RelaxedLoad(&other.PreemptedEvents); 
             NonDeliveredEvents += RelaxedLoad(&other.NonDeliveredEvents);
             EmptyMailboxActivation += RelaxedLoad(&other.EmptyMailboxActivation);
-            CpuNs += RelaxedLoad(&other.CpuNs);
+            CpuNs += RelaxedLoad(&other.CpuNs); 
             ElapsedTicks += RelaxedLoad(&other.ElapsedTicks);
             ParkedTicks += RelaxedLoad(&other.ParkedTicks);
             BlockedTicks += RelaxedLoad(&other.BlockedTicks);
-            MailboxPushedOutBySoftPreemption += RelaxedLoad(&other.MailboxPushedOutBySoftPreemption);
+            MailboxPushedOutBySoftPreemption += RelaxedLoad(&other.MailboxPushedOutBySoftPreemption); 
             MailboxPushedOutByTime += RelaxedLoad(&other.MailboxPushedOutByTime);
             MailboxPushedOutByEventCount += RelaxedLoad(&other.MailboxPushedOutByEventCount);
 
diff --git a/library/cpp/actors/core/probes.cpp b/library/cpp/actors/core/probes.cpp
index 7ace83e102..0a9b256f70 100644
--- a/library/cpp/actors/core/probes.cpp
+++ b/library/cpp/actors/core/probes.cpp
@@ -1,28 +1,28 @@
 #include "probes.h"
 
-#include "actorsystem.h"
-
-#include <util/string/builder.h>
-
+#include "actorsystem.h" 
+ 
+#include <util/string/builder.h> 
+ 
 LWTRACE_DEFINE_PROVIDER(ACTORLIB_PROVIDER);
-
-namespace NActors {
-    TVector<NLWTrace::TDashboard> LWTraceDashboards(TActorSystemSetup* setup) {
-        TVector<NLWTrace::TDashboard> result;
-
-        NLWTrace::TDashboard slowDash;
-        ui32 pools = setup->GetExecutorsCount();
-        size_t top = 30;
-        slowDash.SetName("ActorSystem slow events");
-        slowDash.SetDescription(TStringBuilder() << "TOP" << top << " slow event executions >1M cycles for every pool (refresh page to update)");
-        for (ui32 pool = 0; pool < pools; pool++) {
-            auto* row = slowDash.AddRows();
-            auto* cell = row->AddCells();
-            cell->SetTitle(TStringBuilder() << pool << ":" << setup->GetPoolName(pool));
-            cell->SetUrl(TStringBuilder() << "?mode=log&id=.ACTORLIB_PROVIDER.SlowEvent.ppoolId=" << pool << "&s=eventMs&reverse=y&head=30");
-        }
-        result.push_back(slowDash);
-
-        return result;
-    }
-}
+ 
+namespace NActors { 
+    TVector<NLWTrace::TDashboard> LWTraceDashboards(TActorSystemSetup* setup) { 
+        TVector<NLWTrace::TDashboard> result; 
+ 
+        NLWTrace::TDashboard slowDash; 
+        ui32 pools = setup->GetExecutorsCount(); 
+        size_t top = 30; 
+        slowDash.SetName("ActorSystem slow events"); 
+        slowDash.SetDescription(TStringBuilder() << "TOP" << top << " slow event executions >1M cycles for every pool (refresh page to update)"); 
+        for (ui32 pool = 0; pool < pools; pool++) { 
+            auto* row = slowDash.AddRows(); 
+            auto* cell = row->AddCells(); 
+            cell->SetTitle(TStringBuilder() << pool << ":" << setup->GetPoolName(pool)); 
+            cell->SetUrl(TStringBuilder() << "?mode=log&id=.ACTORLIB_PROVIDER.SlowEvent.ppoolId=" << pool << "&s=eventMs&reverse=y&head=30"); 
+        } 
+        result.push_back(slowDash); 
+ 
+        return result; 
+    } 
+} 
diff --git a/library/cpp/actors/core/probes.h b/library/cpp/actors/core/probes.h
index 4912d6dd26..0733cd010d 100644
--- a/library/cpp/actors/core/probes.h
+++ b/library/cpp/actors/core/probes.h
@@ -1,12 +1,12 @@
 #pragma once
 
 #include <library/cpp/lwtrace/all.h>
-#include <util/generic/vector.h>
-
-#define LWACTORID(x) (x).RawX1(), (x).RawX2(), (x).NodeId(), (x).PoolID()
-#define LWTYPE_ACTORID ui64, ui64, ui32, ui32
-#define LWNAME_ACTORID(n) n "Raw1", n "Raw2", n "NodeId", n "PoolId"
+#include <util/generic/vector.h> 
 
+#define LWACTORID(x) (x).RawX1(), (x).RawX2(), (x).NodeId(), (x).PoolID() 
+#define LWTYPE_ACTORID ui64, ui64, ui32, ui32 
+#define LWNAME_ACTORID(n) n "Raw1", n "Raw2", n "NodeId", n "PoolId" 
+ 
 #define ACTORLIB_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES)                                                                         \
     PROBE(SlowEvent, GROUPS("ActorLibSlow"),                                                                                          \
           TYPES(ui32, double, TString, TString, TString),                                                                             \
@@ -23,27 +23,27 @@
     PROBE(SlowRegisterAdd, GROUPS("ActorLibSlow"),                                                                                    \
           TYPES(ui32, double),                                                                                                        \
           NAMES("poolId", "registerAddMs"))                                                                                           \
-    PROBE(MailboxPushedOutBySoftPreemption, GROUPS("ActorLibMailbox", "ActorLibMailboxPushedOut"),                                    \
-          TYPES(ui32, TString, ui32, TDuration, ui64, TString, TString),                                                              \
-          NAMES("poolId", "pool", "eventsProcessed", "procTimeMs", "workerId", "actorId", "actorType"))                               \
-    PROBE(MailboxPushedOutByTime, GROUPS("ActorLibMailbox", "ActorLibMailboxPushedOut"),                                              \
-          TYPES(ui32, TString, ui32, TDuration, ui64, TString, TString),                                                              \
-          NAMES("poolId", "pool", "eventsProcessed", "procTimeMs", "workerId", "actorId", "actorType"))                               \
-    PROBE(MailboxPushedOutByEventCount, GROUPS("ActorLibMailbox", "ActorLibMailboxPushedOut"),                                        \
-          TYPES(ui32, TString, ui32, TDuration, ui64, TString, TString),                                                              \
-          NAMES("poolId", "pool", "eventsProcessed", "procTimeMs", "workerId", "actorId", "actorType"))                               \
-    PROBE(MailboxEmpty, GROUPS("ActorLibMailbox"),                                                                                    \
-          TYPES(ui32, TString, ui32, TDuration, ui64, TString, TString),                                                              \
-          NAMES("poolId", "pool", "eventsProcessed", "procTimeMs", "workerId", "actorId", "actorType"))                               \
-    PROBE(ActivationBegin, GROUPS(),                                                                                                  \
-          TYPES(ui32, ui32, ui32, double),                                                                                            \
-          NAMES("cpu", "poolId", "workerId", "expireMs"))                                                                             \
-    PROBE(ActivationEnd, GROUPS(),                                                                                                    \
-          TYPES(ui32, ui32, ui32),                                                                                                    \
-          NAMES("cpu", "poolId", "workerId"))                                                                                         \
+    PROBE(MailboxPushedOutBySoftPreemption, GROUPS("ActorLibMailbox", "ActorLibMailboxPushedOut"),                                    \ 
+          TYPES(ui32, TString, ui32, TDuration, ui64, TString, TString),                                                              \ 
+          NAMES("poolId", "pool", "eventsProcessed", "procTimeMs", "workerId", "actorId", "actorType"))                               \ 
+    PROBE(MailboxPushedOutByTime, GROUPS("ActorLibMailbox", "ActorLibMailboxPushedOut"),                                              \ 
+          TYPES(ui32, TString, ui32, TDuration, ui64, TString, TString),                                                              \ 
+          NAMES("poolId", "pool", "eventsProcessed", "procTimeMs", "workerId", "actorId", "actorType"))                               \ 
+    PROBE(MailboxPushedOutByEventCount, GROUPS("ActorLibMailbox", "ActorLibMailboxPushedOut"),                                        \ 
+          TYPES(ui32, TString, ui32, TDuration, ui64, TString, TString),                                                              \ 
+          NAMES("poolId", "pool", "eventsProcessed", "procTimeMs", "workerId", "actorId", "actorType"))                               \ 
+    PROBE(MailboxEmpty, GROUPS("ActorLibMailbox"),                                                                                    \ 
+          TYPES(ui32, TString, ui32, TDuration, ui64, TString, TString),                                                              \ 
+          NAMES("poolId", "pool", "eventsProcessed", "procTimeMs", "workerId", "actorId", "actorType"))                               \ 
+    PROBE(ActivationBegin, GROUPS(),                                                                                                  \ 
+          TYPES(ui32, ui32, ui32, double),                                                                                            \ 
+          NAMES("cpu", "poolId", "workerId", "expireMs"))                                                                             \ 
+    PROBE(ActivationEnd, GROUPS(),                                                                                                    \ 
+          TYPES(ui32, ui32, ui32),                                                                                                    \ 
+          NAMES("cpu", "poolId", "workerId"))                                                                                         \ 
     PROBE(ExecutorThreadStats, GROUPS("ActorLibStats"),                                                                               \
-          TYPES(ui32, TString, ui64, ui64, ui64, double, double),                                                                     \
-          NAMES("poolId", "pool", "workerId", "execCount", "readyActivationCount", "execMs", "nonExecMs"))                            \
+          TYPES(ui32, TString, ui64, ui64, ui64, double, double),                                                                     \ 
+          NAMES("poolId", "pool", "workerId", "execCount", "readyActivationCount", "execMs", "nonExecMs"))                            \ 
     PROBE(SlowICReadLoopAdjustSize, GROUPS("ActorLibSlowIC"),                                                                         \
           TYPES(double),                                                                                                              \
           NAMES("icReadLoopAdjustSizeMs"))                                                                                            \
@@ -75,102 +75,102 @@
           TYPES(ui64, ui64, ui32, ui32, ui64, ui64),                                                                                  \
           NAMES("timeUs", "timerfd_expirations", "eventsGottenFromQueues", "eventsSent",                                              \
                 "eventsInSendQueue", "eventSchedulingErrorUs"))                                                                       \
-    PROBE(ForwardEvent, GROUPS("Orbit", "InterconnectSessionTCP"),                                                                    \
-          TYPES(ui32, ui32, ui32, LWTYPE_ACTORID, LWTYPE_ACTORID, ui64, ui32),                                                        \
-          NAMES("peerId", "type", "flags", LWNAME_ACTORID("r"), LWNAME_ACTORID("s"),                                                  \
-                "cookie", "eventSerializedSize"))                                                                                     \
-    PROBE(EnqueueEvent, GROUPS("InterconnectSessionTCP"),                                                                             \
-          TYPES(ui32, ui64, TDuration, ui16, ui64, ui64),                                                                             \
-          NAMES("peerId", "numEventsInReadyChannels", "enqueueBlockedTotalMs", "channelId", "queueSizeInEvents", "queueSizeInBytes")) \
-    PROBE(SerializeToPacketBegin, GROUPS("InterconnectSessionTCP"),                                                                   \
-          TYPES(ui32, ui16, ui64),                                                                                                    \
-          NAMES("peerId", "channelId", "outputQueueSize"))                                                                            \
-    PROBE(SerializeToPacketEnd, GROUPS("InterconnectSessionTCP"),                                                                     \
-          TYPES(ui32, ui16, ui64, ui64),                                                                                              \
-          NAMES("peerId", "channelId", "outputQueueSize", "offsetInPacket"))                                                          \
-    PROBE(FillSendingBuffer, GROUPS("InterconnectSessionTCP"),                                                                        \
-          TYPES(ui32, ui32, ui64, TDuration),                                                                                         \
-          NAMES("peerId", "taskBytesGenerated", "numEventsInReadyChannelsBehind", "fillBlockedTotalMs"))                              \
-    PROBE(PacketGenerated, GROUPS("InterconnectSessionTCP"),                                                                          \
-          TYPES(ui32, ui64, ui64, ui64, ui64),                                                                                        \
-          NAMES("peerId", "bytesUnwritten", "inflightBytes", "packetsGenerated", "packetSize"))                                       \
-    PROBE(PacketWrittenToSocket, GROUPS("InterconnectSessionTCP"),                                                                    \
-          TYPES(ui32, ui64, bool, ui64, ui64, TDuration, int),                                                                        \
-          NAMES("peerId", "packetsWrittenToSocket", "triedWriting", "packetDataSize", "bytesUnwritten", "writeBlockedTotalMs", "fd")) \
-    PROBE(GenerateTraffic, GROUPS("InterconnectSessionTCP"),                                                                          \
-          TYPES(ui32, double, ui64, ui32, ui64),                                                                                      \
-          NAMES("peerId", "generateTrafficMs", "dataBytesSent", "generatedPackets", "generatedBytes"))                                \
-    PROBE(WriteToSocket, GROUPS("InterconnectSessionTCP"),                                                                            \
-          TYPES(ui32, ui64, ui64, ui64, ui64, TDuration, int),                                                                        \
-          NAMES("peerId", "bytesWritten", "packetsWritten", "packetsWrittenToSocket", "bytesUnwritten", "writeBlockedTotalMs", "fd")) \
-    PROBE(UpdateFromInputSession, GROUPS("InterconnectSessionTCP"),                                                                   \
-          TYPES(ui32, double),                                                                                                        \
-          NAMES("peerId", "pingMs"))                                                                                                  \
-    PROBE(UnblockByDropConfirmed, GROUPS("InterconnectSessionTCP"),                                                                   \
-          TYPES(ui32, double),                                                                                                        \
-          NAMES("peerId", "updateDeliveryMs"))                                                                                        \
-    PROBE(DropConfirmed, GROUPS("InterconnectSessionTCP"),                                                                            \
-          TYPES(ui32, ui64, ui64),                                                                                                    \
-          NAMES("peerId", "droppedBytes", "inflightBytes"))                                                                           \
-    PROBE(StartRam, GROUPS("InterconnectSessionTCP"),                                                                                 \
-          TYPES(ui32),                                                                                                                \
-          NAMES("peerId"))                                                                                                            \
-    PROBE(FinishRam, GROUPS("InterconnectSessionTCP"),                                                                                \
-          TYPES(ui32, double),                                                                                                        \
-          NAMES("peerId", "ramMs"))                                                                                                   \
-    PROBE(SkipGenerateTraffic, GROUPS("InterconnectSessionTCP"),                                                                      \
-          TYPES(ui32, double),                                                                                                        \
-          NAMES("peerId", "elapsedSinceRamMs"))                                                                                       \
-    PROBE(StartBatching, GROUPS("InterconnectSessionTCP"),                                                                            \
-          TYPES(ui32, double),                                                                                                        \
-          NAMES("peerId", "batchPeriodMs"))                                                                                           \
-    PROBE(FinishBatching, GROUPS("InterconnectSessionTCP"),                                                                           \
-          TYPES(ui32, double),                                                                                                        \
-          NAMES("peerId", "finishBatchDeliveryMs"))                                                                                   \
-    PROBE(BlockedWrite, GROUPS("InterconnectSessionTCP"),                                                                             \
-          TYPES(ui32, double, ui64),                                                                                                  \
-          NAMES("peerId", "sendQueueSize", "writtenBytes"))                                                                           \
-    PROBE(ReadyWrite, GROUPS("InterconnectSessionTCP"),                                                                               \
-          TYPES(ui32, double, double),                                                                                                \
-          NAMES("peerId", "readyWriteDeliveryMs", "blockMs"))                                                                         \
-    PROBE(EpollStartWaitIn, GROUPS("EpollThread"),                                                                                    \
-          TYPES(),                                                                                                                    \
-          NAMES())                                                                                                                    \
-    PROBE(EpollFinishWaitIn, GROUPS("EpollThread"),                                                                                   \
-          TYPES(i32),                                                                                                                 \
-          NAMES("eventsCount"))                                                                                                       \
-    PROBE(EpollWaitOut, GROUPS("EpollThread"),                                                                                        \
-          TYPES(i32),                                                                                                                 \
-          NAMES("eventsCount"))                                                                                                       \
-    PROBE(EpollSendReadyRead, GROUPS("EpollThread"),                                                                                  \
-          TYPES(bool, bool, int),                                                                                                     \
-          NAMES("hangup", "event", "fd"))                                                                                             \
-    PROBE(EpollSendReadyWrite, GROUPS("EpollThread"),                                                                                 \
-          TYPES(bool, bool, int),                                                                                                     \
-          NAMES("hangup", "event", "fd"))                                                                                             \
-    PROBE(HardPreemption, GROUPS("UnitedWorker"),                                                                                     \
-          TYPES(ui32, ui32, ui32, ui32),                                                                                              \
-          NAMES("cpu", "prevPoolId", "prevWorkerId", "nextWorkerId"))                                                                 \
-    PROBE(SetPreemptionTimer, GROUPS("UnitedWorker", "PreemptionTimer"),                                                              \
-          TYPES(ui32, ui32, int, double, double),                                                                                     \
-          NAMES("cpu", "workerId", "fd", "nowMs", "preemptMs"))                                                                       \
-    PROBE(ResetPreemptionTimer, GROUPS("UnitedWorker", "PreemptionTimer"),                                                            \
-          TYPES(ui32, ui32, int, double, double),                                                                                     \
-          NAMES("cpu", "workerId", "fd", "nowMs", "preemptMs"))                                                                       \
-    PROBE(SlowWorkerActionRace, GROUPS("UnitedWorker"),                                                                               \
-          TYPES(ui32, ui32, ui64),                                                                                                    \
-          NAMES("cpu", "poolId", "slowPoolsMask"))                                                                                    \
-    PROBE(PoolStats, GROUPS("PoolCpuBalancer"),                                                                                       \
-          TYPES(ui32, TString, ui64, ui8, ui8, double, double, double, ui64, ui64, ui64),                                             \
-          NAMES("poolId", "pool", "currentCpus", "loadClass", "priority", "scaleFactor", "cpuIdle", "cpuLoad", "importance", "addImportance", "subImportance")) \
-    PROBE(MoveCpu, GROUPS("PoolCpuBalancer"),                                                                                         \
-          TYPES(ui32, ui64, TString, TString, ui32),                                                                                  \
-          NAMES("fromPoolId", "toPoolId", "fromPool", "toPool", "cpu"))                                                               \
+    PROBE(ForwardEvent, GROUPS("Orbit", "InterconnectSessionTCP"),                                                                    \ 
+          TYPES(ui32, ui32, ui32, LWTYPE_ACTORID, LWTYPE_ACTORID, ui64, ui32),                                                        \ 
+          NAMES("peerId", "type", "flags", LWNAME_ACTORID("r"), LWNAME_ACTORID("s"),                                                  \ 
+                "cookie", "eventSerializedSize"))                                                                                     \ 
+    PROBE(EnqueueEvent, GROUPS("InterconnectSessionTCP"),                                                                             \ 
+          TYPES(ui32, ui64, TDuration, ui16, ui64, ui64),                                                                             \ 
+          NAMES("peerId", "numEventsInReadyChannels", "enqueueBlockedTotalMs", "channelId", "queueSizeInEvents", "queueSizeInBytes")) \ 
+    PROBE(SerializeToPacketBegin, GROUPS("InterconnectSessionTCP"),                                                                   \ 
+          TYPES(ui32, ui16, ui64),                                                                                                    \ 
+          NAMES("peerId", "channelId", "outputQueueSize"))                                                                            \ 
+    PROBE(SerializeToPacketEnd, GROUPS("InterconnectSessionTCP"),                                                                     \ 
+          TYPES(ui32, ui16, ui64, ui64),                                                                                              \ 
+          NAMES("peerId", "channelId", "outputQueueSize", "offsetInPacket"))                                                          \ 
+    PROBE(FillSendingBuffer, GROUPS("InterconnectSessionTCP"),                                                                        \ 
+          TYPES(ui32, ui32, ui64, TDuration),                                                                                         \ 
+          NAMES("peerId", "taskBytesGenerated", "numEventsInReadyChannelsBehind", "fillBlockedTotalMs"))                              \ 
+    PROBE(PacketGenerated, GROUPS("InterconnectSessionTCP"),                                                                          \ 
+          TYPES(ui32, ui64, ui64, ui64, ui64),                                                                                        \ 
+          NAMES("peerId", "bytesUnwritten", "inflightBytes", "packetsGenerated", "packetSize"))                                       \ 
+    PROBE(PacketWrittenToSocket, GROUPS("InterconnectSessionTCP"),                                                                    \ 
+          TYPES(ui32, ui64, bool, ui64, ui64, TDuration, int),                                                                        \ 
+          NAMES("peerId", "packetsWrittenToSocket", "triedWriting", "packetDataSize", "bytesUnwritten", "writeBlockedTotalMs", "fd")) \ 
+    PROBE(GenerateTraffic, GROUPS("InterconnectSessionTCP"),                                                                          \ 
+          TYPES(ui32, double, ui64, ui32, ui64),                                                                                      \ 
+          NAMES("peerId", "generateTrafficMs", "dataBytesSent", "generatedPackets", "generatedBytes"))                                \ 
+    PROBE(WriteToSocket, GROUPS("InterconnectSessionTCP"),                                                                            \ 
+          TYPES(ui32, ui64, ui64, ui64, ui64, TDuration, int),                                                                        \ 
+          NAMES("peerId", "bytesWritten", "packetsWritten", "packetsWrittenToSocket", "bytesUnwritten", "writeBlockedTotalMs", "fd")) \ 
+    PROBE(UpdateFromInputSession, GROUPS("InterconnectSessionTCP"),                                                                   \ 
+          TYPES(ui32, double),                                                                                                        \ 
+          NAMES("peerId", "pingMs"))                                                                                                  \ 
+    PROBE(UnblockByDropConfirmed, GROUPS("InterconnectSessionTCP"),                                                                   \ 
+          TYPES(ui32, double),                                                                                                        \ 
+          NAMES("peerId", "updateDeliveryMs"))                                                                                        \ 
+    PROBE(DropConfirmed, GROUPS("InterconnectSessionTCP"),                                                                            \ 
+          TYPES(ui32, ui64, ui64),                                                                                                    \ 
+          NAMES("peerId", "droppedBytes", "inflightBytes"))                                                                           \ 
+    PROBE(StartRam, GROUPS("InterconnectSessionTCP"),                                                                                 \ 
+          TYPES(ui32),                                                                                                                \ 
+          NAMES("peerId"))                                                                                                            \ 
+    PROBE(FinishRam, GROUPS("InterconnectSessionTCP"),                                                                                \ 
+          TYPES(ui32, double),                                                                                                        \ 
+          NAMES("peerId", "ramMs"))                                                                                                   \ 
+    PROBE(SkipGenerateTraffic, GROUPS("InterconnectSessionTCP"),                                                                      \ 
+          TYPES(ui32, double),                                                                                                        \ 
+          NAMES("peerId", "elapsedSinceRamMs"))                                                                                       \ 
+    PROBE(StartBatching, GROUPS("InterconnectSessionTCP"),                                                                            \ 
+          TYPES(ui32, double),                                                                                                        \ 
+          NAMES("peerId", "batchPeriodMs"))                                                                                           \ 
+    PROBE(FinishBatching, GROUPS("InterconnectSessionTCP"),                                                                           \ 
+          TYPES(ui32, double),                                                                                                        \ 
+          NAMES("peerId", "finishBatchDeliveryMs"))                                                                                   \ 
+    PROBE(BlockedWrite, GROUPS("InterconnectSessionTCP"),                                                                             \ 
+          TYPES(ui32, double, ui64),                                                                                                  \ 
+          NAMES("peerId", "sendQueueSize", "writtenBytes"))                                                                           \ 
+    PROBE(ReadyWrite, GROUPS("InterconnectSessionTCP"),                                                                               \ 
+          TYPES(ui32, double, double),                                                                                                \ 
+          NAMES("peerId", "readyWriteDeliveryMs", "blockMs"))                                                                         \ 
+    PROBE(EpollStartWaitIn, GROUPS("EpollThread"),                                                                                    \ 
+          TYPES(),                                                                                                                    \ 
+          NAMES())                                                                                                                    \ 
+    PROBE(EpollFinishWaitIn, GROUPS("EpollThread"),                                                                                   \ 
+          TYPES(i32),                                                                                                                 \ 
+          NAMES("eventsCount"))                                                                                                       \ 
+    PROBE(EpollWaitOut, GROUPS("EpollThread"),                                                                                        \ 
+          TYPES(i32),                                                                                                                 \ 
+          NAMES("eventsCount"))                                                                                                       \ 
+    PROBE(EpollSendReadyRead, GROUPS("EpollThread"),                                                                                  \ 
+          TYPES(bool, bool, int),                                                                                                     \ 
+          NAMES("hangup", "event", "fd"))                                                                                             \ 
+    PROBE(EpollSendReadyWrite, GROUPS("EpollThread"),                                                                                 \ 
+          TYPES(bool, bool, int),                                                                                                     \ 
+          NAMES("hangup", "event", "fd"))                                                                                             \ 
+    PROBE(HardPreemption, GROUPS("UnitedWorker"),                                                                                     \ 
+          TYPES(ui32, ui32, ui32, ui32),                                                                                              \ 
+          NAMES("cpu", "prevPoolId", "prevWorkerId", "nextWorkerId"))                                                                 \ 
+    PROBE(SetPreemptionTimer, GROUPS("UnitedWorker", "PreemptionTimer"),                                                              \ 
+          TYPES(ui32, ui32, int, double, double),                                                                                     \ 
+          NAMES("cpu", "workerId", "fd", "nowMs", "preemptMs"))                                                                       \ 
+    PROBE(ResetPreemptionTimer, GROUPS("UnitedWorker", "PreemptionTimer"),                                                            \ 
+          TYPES(ui32, ui32, int, double, double),                                                                                     \ 
+          NAMES("cpu", "workerId", "fd", "nowMs", "preemptMs"))                                                                       \ 
+    PROBE(SlowWorkerActionRace, GROUPS("UnitedWorker"),                                                                               \ 
+          TYPES(ui32, ui32, ui64),                                                                                                    \ 
+          NAMES("cpu", "poolId", "slowPoolsMask"))                                                                                    \ 
+    PROBE(PoolStats, GROUPS("PoolCpuBalancer"),                                                                                       \ 
+          TYPES(ui32, TString, ui64, ui8, ui8, double, double, double, ui64, ui64, ui64),                                             \ 
+          NAMES("poolId", "pool", "currentCpus", "loadClass", "priority", "scaleFactor", "cpuIdle", "cpuLoad", "importance", "addImportance", "subImportance")) \ 
+    PROBE(MoveCpu, GROUPS("PoolCpuBalancer"),                                                                                         \ 
+          TYPES(ui32, ui64, TString, TString, ui32),                                                                                  \ 
+          NAMES("fromPoolId", "toPoolId", "fromPool", "toPool", "cpu"))                                                               \ 
     /**/
 
 LWTRACE_DECLARE_PROVIDER(ACTORLIB_PROVIDER)
-
-namespace NActors {
-    struct TActorSystemSetup;
-    TVector<NLWTrace::TDashboard> LWTraceDashboards(TActorSystemSetup* setup);
-}
+ 
+namespace NActors { 
+    struct TActorSystemSetup; 
+    TVector<NLWTrace::TDashboard> LWTraceDashboards(TActorSystemSetup* setup); 
+} 
diff --git a/library/cpp/actors/core/scheduler_actor.cpp b/library/cpp/actors/core/scheduler_actor.cpp
index febc5e40dd..7e38a41e30 100644
--- a/library/cpp/actors/core/scheduler_actor.cpp
+++ b/library/cpp/actors/core/scheduler_actor.cpp
@@ -116,11 +116,11 @@ namespace NActors {
 
         void TryUpdateTime(NHPTimer::STime* lastTimeUpdate) {
             NHPTimer::STime hpnow;
-            GetTimeFast(&hpnow);
+            GetTimeFast(&hpnow); 
             const ui64 elapsedCycles = hpnow > *lastTimeUpdate ? hpnow - *lastTimeUpdate : 0;
             if (elapsedCycles > Cfg.ResolutionMicroseconds * (NHPTimer::GetCyclesPerSecond() / IntrasecondThreshold)) {
                 UpdateTime();
-                GetTimeFast(lastTimeUpdate);
+                GetTimeFast(lastTimeUpdate); 
             }
         }
 
diff --git a/library/cpp/actors/core/scheduler_basic.cpp b/library/cpp/actors/core/scheduler_basic.cpp
index fba200e16b..715cfb787d 100644
--- a/library/cpp/actors/core/scheduler_basic.cpp
+++ b/library/cpp/actors/core/scheduler_basic.cpp
@@ -1,9 +1,9 @@
 #include "scheduler_basic.h"
 #include "scheduler_queue.h"
 
-#include <library/cpp/actors/util/datetime.h>
+#include <library/cpp/actors/util/datetime.h> 
 #include <library/cpp/actors/util/thread.h>
-
+ 
 #ifdef BALLOC
 #include <library/cpp/balloc/optional/operators.h>
 #endif
@@ -61,7 +61,7 @@ namespace NActors {
         ui64 activeTick = AlignUp<ui64>(throttledMonotonic, IntrasecondThreshold);
         TAutoPtr<TMomentMap> activeSec;
 
-        NHPTimer::STime hpprev = GetCycleCountFast();
+        NHPTimer::STime hpprev = GetCycleCountFast(); 
         ui64 nextTimestamp = TInstant::Now().MicroSeconds();
         ui64 nextMonotonic = Max(currentMonotonic, GetMonotonicMicroSeconds());
 
@@ -170,7 +170,7 @@ namespace NActors {
                 }
             }
 
-            NHPTimer::STime hpnow = GetCycleCountFast();
+            NHPTimer::STime hpnow = GetCycleCountFast(); 
 
             if (MonCounters) {
                 *MonCounters->QueueSize -= eventsSent + eventsDropped;
@@ -202,7 +202,7 @@ namespace NActors {
                 NanoSleep(delta * 1000); // ok, looks like we should sleep a bit.
 
                 // Don't count sleep in elapsed microseconds
-                hpprev = GetCycleCountFast();
+                hpprev = GetCycleCountFast(); 
                 nextTimestamp = TInstant::Now().MicroSeconds();
                 nextMonotonic = Max(currentMonotonic, GetMonotonicMicroSeconds());
             }
@@ -218,7 +218,7 @@ namespace NActors {
         *CurrentMonotonic = GetMonotonicMicroSeconds();
     }
 
-    void TBasicSchedulerThread::PrepareSchedules(NSchedulerQueue::TReader** readers, ui32 scheduleReadersCount) {
+    void TBasicSchedulerThread::PrepareSchedules(NSchedulerQueue::TReader** readers, ui32 scheduleReadersCount) { 
         Y_VERIFY(scheduleReadersCount > 0);
         TotalReaders = scheduleReadersCount;
         Readers.Reset(new NSchedulerQueue::TReader*[scheduleReadersCount]);
diff --git a/library/cpp/actors/core/scheduler_basic.h b/library/cpp/actors/core/scheduler_basic.h
index 2ccde39235..16a5b005bd 100644
--- a/library/cpp/actors/core/scheduler_basic.h
+++ b/library/cpp/actors/core/scheduler_basic.h
@@ -42,7 +42,7 @@ namespace NActors {
         ~TBasicSchedulerThread();
 
         void Prepare(TActorSystem* actorSystem, volatile ui64* currentTimestamp, volatile ui64* currentMonotonic) override;
-        void PrepareSchedules(NSchedulerQueue::TReader** readers, ui32 scheduleReadersCount) override;
+        void PrepareSchedules(NSchedulerQueue::TReader** readers, ui32 scheduleReadersCount) override; 
 
         void PrepareStart() override;
         void Start() override;
@@ -61,7 +61,7 @@ namespace NActors {
             *currentMonotonic = GetMonotonicMicroSeconds();
         }
 
-        void PrepareSchedules(NSchedulerQueue::TReader** readers, ui32 scheduleReadersCount) override {
+        void PrepareSchedules(NSchedulerQueue::TReader** readers, ui32 scheduleReadersCount) override { 
             Y_UNUSED(readers);
             Y_UNUSED(scheduleReadersCount);
         }
diff --git a/library/cpp/actors/core/ut/ya.make b/library/cpp/actors/core/ut/ya.make
index 3ee28d5850..64ab864b4a 100644
--- a/library/cpp/actors/core/ut/ya.make
+++ b/library/cpp/actors/core/ut/ya.make
@@ -33,11 +33,11 @@ SRCS(
     actor_ut.cpp
     actorsystem_ut.cpp
     ask_ut.cpp
-    balancer_ut.cpp
+    balancer_ut.cpp 
     event_pb_payload_ut.cpp
     event_pb_ut.cpp
     executor_pool_basic_ut.cpp
-    executor_pool_united_ut.cpp
+    executor_pool_united_ut.cpp 
     log_ut.cpp
     memory_tracker_ut.cpp
     scheduler_actor_ut.cpp
diff --git a/library/cpp/actors/core/worker_context.cpp b/library/cpp/actors/core/worker_context.cpp
index ada6c997d4..55b50f4708 100644
--- a/library/cpp/actors/core/worker_context.cpp
+++ b/library/cpp/actors/core/worker_context.cpp
@@ -1,7 +1,7 @@
-#include "worker_context.h"
-#include "probes.h"
-
-namespace NActors {
-    LWTRACE_USING(ACTORLIB_PROVIDER);
-
-}
+#include "worker_context.h" 
+#include "probes.h" 
+ 
+namespace NActors { 
+    LWTRACE_USING(ACTORLIB_PROVIDER); 
+ 
+} 
diff --git a/library/cpp/actors/core/worker_context.h b/library/cpp/actors/core/worker_context.h
index b4c37a7629..d4a9a5e6ee 100644
--- a/library/cpp/actors/core/worker_context.h
+++ b/library/cpp/actors/core/worker_context.h
@@ -1,175 +1,175 @@
-#pragma once
-
-#include "defs.h"
-
-#include "actorsystem.h"
-#include "event.h"
-#include "lease.h"
-#include "mailbox.h"
-#include "mon_stats.h"
-
-#include <library/cpp/actors/util/datetime.h>
-#include <library/cpp/actors/util/intrinsics.h>
-#include <library/cpp/actors/util/thread.h>
-
-#include <library/cpp/lwtrace/shuttle.h>
-
-namespace NActors {
-    struct TWorkerContext {
-        const TWorkerId WorkerId;
-        const TCpuId CpuId;
-        TLease Lease;
-        IExecutorPool* Executor = nullptr;
-        TMailboxTable* MailboxTable = nullptr;
-        ui64 TimePerMailboxTs = 0;
-        ui32 EventsPerMailbox = 0;
-        ui64 SoftDeadlineTs = ui64(-1);
-        TExecutorThreadStats* Stats = &WorkerStats; // pool stats
-        TExecutorThreadStats WorkerStats;
-        TPoolId PoolId = MaxPools;
-        mutable NLWTrace::TOrbit Orbit;
-
-        TWorkerContext(TWorkerId workerId, TCpuId cpuId, size_t activityVecSize)
-            : WorkerId(workerId)
-            , CpuId(cpuId)
-            , Lease(WorkerId, NeverExpire)
-            , WorkerStats(activityVecSize)
-        {}
-
-#ifdef ACTORSLIB_COLLECT_EXEC_STATS
-        void GetCurrentStats(TExecutorThreadStats& statsCopy) const {
-            statsCopy = TExecutorThreadStats();
-            statsCopy.Aggregate(*Stats);
-        }
-
-        void AddElapsedCycles(ui32 activityType, i64 elapsed) {
-            Y_VERIFY_DEBUG(activityType < Stats->MaxActivityType());
-            RelaxedStore(&Stats->ElapsedTicks, RelaxedLoad(&Stats->ElapsedTicks) + elapsed);
-            RelaxedStore(&Stats->ElapsedTicksByActivity[activityType], RelaxedLoad(&Stats->ElapsedTicksByActivity[activityType]) + elapsed);
-        }
-
-        void AddParkedCycles(i64 elapsed) {
-            RelaxedStore(&Stats->ParkedTicks, RelaxedLoad(&Stats->ParkedTicks) + elapsed);
-        }
-
-        void AddBlockedCycles(i64 elapsed) {
-            RelaxedStore(&Stats->BlockedTicks, RelaxedLoad(&Stats->BlockedTicks) + elapsed);
-        }
-
-        void IncrementSentEvents() {
-            RelaxedStore(&Stats->SentEvents, RelaxedLoad(&Stats->SentEvents) + 1);
-        }
-
-        void IncrementPreemptedEvents() {
-            RelaxedStore(&Stats->PreemptedEvents, RelaxedLoad(&Stats->PreemptedEvents) + 1);
-        }
-
-        void DecrementActorsAliveByActivity(ui32 activityType) {
-            if (activityType >= Stats->MaxActivityType()) {
-                activityType = 0;
-            }
-            RelaxedStore(&Stats->ActorsAliveByActivity[activityType], Stats->ActorsAliveByActivity[activityType] - 1);
-        }
-
-        inline void IncrementNonDeliveredEvents() {
-            RelaxedStore(&Stats->NonDeliveredEvents, RelaxedLoad(&Stats->NonDeliveredEvents) + 1);
-        }
-
-        inline void IncrementMailboxPushedOutBySoftPreemption() {
-            RelaxedStore(&Stats->MailboxPushedOutBySoftPreemption, RelaxedLoad(&Stats->MailboxPushedOutBySoftPreemption) + 1);
-        }
-
-        inline void IncrementMailboxPushedOutByTime() {
-            RelaxedStore(&Stats->MailboxPushedOutByTime, RelaxedLoad(&Stats->MailboxPushedOutByTime) + 1);
-        }
-
-        inline void IncrementMailboxPushedOutByEventCount() {
-            RelaxedStore(&Stats->MailboxPushedOutByEventCount, RelaxedLoad(&Stats->MailboxPushedOutByEventCount) + 1);
-        }
-
-        inline void IncrementEmptyMailboxActivation() {
-            RelaxedStore(&Stats->EmptyMailboxActivation, RelaxedLoad(&Stats->EmptyMailboxActivation) + 1);
-        }
-
-        double AddActivationStats(i64 scheduleTs, i64 deliveredTs) {
-            i64 ts = deliveredTs > scheduleTs ? deliveredTs - scheduleTs : 0;
-            double usec = NHPTimer::GetSeconds(ts) * 1000000.0;
-            Stats->ActivationTimeHistogram.Add(usec);
-            return usec;
-        }
-
-        ui64 AddEventDeliveryStats(i64 sentTs, i64 deliveredTs) {
-            ui64 usecDeliv = deliveredTs > sentTs ? NHPTimer::GetSeconds(deliveredTs - sentTs) * 1000000 : 0;
-            Stats->EventDeliveryTimeHistogram.Add(usecDeliv);
-            return usecDeliv;
-        }
-
-        i64 AddEventProcessingStats(i64 deliveredTs, i64 processedTs, ui32 activityType, ui64 scheduled) {
-            i64 elapsed = processedTs - deliveredTs;
-            ui64 usecElapsed = NHPTimer::GetSeconds(elapsed) * 1000000;
-            activityType = (activityType >= Stats->MaxActivityType()) ? 0 : activityType;
-            Stats->EventProcessingCountHistogram.Add(usecElapsed);
-            Stats->EventProcessingTimeHistogram.Add(usecElapsed, elapsed);
-            RelaxedStore(&Stats->ReceivedEvents, RelaxedLoad(&Stats->ReceivedEvents) + 1);
-            RelaxedStore(&Stats->ReceivedEventsByActivity[activityType], RelaxedLoad(&Stats->ReceivedEventsByActivity[activityType]) + 1);
-            RelaxedStore(&Stats->ScheduledEventsByActivity[activityType], RelaxedLoad(&Stats->ScheduledEventsByActivity[activityType]) + scheduled);
-            AddElapsedCycles(activityType, elapsed);
-            return elapsed;
-        }
-
-        void UpdateActorsStats(size_t dyingActorsCnt) {
-            if (dyingActorsCnt) {
-                AtomicAdd(Executor->DestroyedActors, dyingActorsCnt);
-            }
-            RelaxedStore(&Stats->PoolDestroyedActors, (ui64)RelaxedLoad(&Executor->DestroyedActors));
-            RelaxedStore(&Stats->PoolActorRegistrations, (ui64)RelaxedLoad(&Executor->ActorRegistrations));
-            RelaxedStore(&Stats->PoolAllocatedMailboxes, MailboxTable->GetAllocatedMailboxCount());
-        }
-
-        void UpdateThreadTime() {
-            RelaxedStore(&WorkerStats.CpuNs, ThreadCPUTime() * 1000);
-        }
-#else
-        void GetCurrentStats(TExecutorThreadStats&) const {}
-        inline void AddElapsedCycles(ui32, i64) {}
-        inline void AddParkedCycles(i64) {}
-        inline void AddBlockedCycles(i64) {}
-        inline void IncrementSentEvents() {}
-        inline void IncrementPreemptedEvents() {}
-        inline void IncrementMailboxPushedOutBySoftPreemption() {}
-        inline void IncrementMailboxPushedOutByTime() {}
-        inline void IncrementMailboxPushedOutByEventCount() {}
-        inline void IncrementEmptyMailboxActivation() {}
-        void DecrementActorsAliveByActivity(ui32) {}
-        void IncrementNonDeliveredEvents() {}
-        double AddActivationStats(i64, i64) { return 0; }
-        ui64 AddEventDeliveryStats(i64, i64) { return 0; }
-        i64 AddEventProcessingStats(i64, i64, ui32, ui64) { return 0; }
-        void UpdateActorsStats(size_t, IExecutorPool*) {}
-        void UpdateThreadTime() {}
-#endif
-
-        void Switch(IExecutorPool* executor,
-                    TMailboxTable* mailboxTable,
-                    ui64 timePerMailboxTs,
-                    ui32 eventsPerMailbox,
-                    ui64 softDeadlineTs,
-                    TExecutorThreadStats* stats)
-        {
-            Executor = executor;
-            MailboxTable = mailboxTable;
-            TimePerMailboxTs = timePerMailboxTs;
-            EventsPerMailbox = eventsPerMailbox;
-            SoftDeadlineTs = softDeadlineTs;
-            Stats = stats;
-            PoolId = Executor ? Executor->PoolId : MaxPools;
-        }
-
-        void SwitchToIdle() {
-            Executor = nullptr;
-            MailboxTable = nullptr;
-            //Stats = &WorkerStats; // TODO: in actorsystem 2.0 idle stats cannot be related to specific pool
-            PoolId = MaxPools;
-        }
-    };
-}
+#pragma once 
+ 
+#include "defs.h" 
+ 
+#include "actorsystem.h" 
+#include "event.h" 
+#include "lease.h" 
+#include "mailbox.h" 
+#include "mon_stats.h" 
+ 
+#include <library/cpp/actors/util/datetime.h> 
+#include <library/cpp/actors/util/intrinsics.h> 
+#include <library/cpp/actors/util/thread.h> 
+ 
+#include <library/cpp/lwtrace/shuttle.h> 
+ 
+namespace NActors { 
+    struct TWorkerContext { 
+        const TWorkerId WorkerId; 
+        const TCpuId CpuId; 
+        TLease Lease; 
+        IExecutorPool* Executor = nullptr; 
+        TMailboxTable* MailboxTable = nullptr; 
+        ui64 TimePerMailboxTs = 0; 
+        ui32 EventsPerMailbox = 0; 
+        ui64 SoftDeadlineTs = ui64(-1); 
+        TExecutorThreadStats* Stats = &WorkerStats; // pool stats 
+        TExecutorThreadStats WorkerStats; 
+        TPoolId PoolId = MaxPools; 
+        mutable NLWTrace::TOrbit Orbit; 
+ 
+        TWorkerContext(TWorkerId workerId, TCpuId cpuId, size_t activityVecSize) 
+            : WorkerId(workerId) 
+            , CpuId(cpuId) 
+            , Lease(WorkerId, NeverExpire) 
+            , WorkerStats(activityVecSize) 
+        {} 
+ 
+#ifdef ACTORSLIB_COLLECT_EXEC_STATS 
+        void GetCurrentStats(TExecutorThreadStats& statsCopy) const { 
+            statsCopy = TExecutorThreadStats(); 
+            statsCopy.Aggregate(*Stats); 
+        } 
+ 
+        void AddElapsedCycles(ui32 activityType, i64 elapsed) { 
+            Y_VERIFY_DEBUG(activityType < Stats->MaxActivityType()); 
+            RelaxedStore(&Stats->ElapsedTicks, RelaxedLoad(&Stats->ElapsedTicks) + elapsed); 
+            RelaxedStore(&Stats->ElapsedTicksByActivity[activityType], RelaxedLoad(&Stats->ElapsedTicksByActivity[activityType]) + elapsed); 
+        } 
+ 
+        void AddParkedCycles(i64 elapsed) { 
+            RelaxedStore(&Stats->ParkedTicks, RelaxedLoad(&Stats->ParkedTicks) + elapsed); 
+        } 
+ 
+        void AddBlockedCycles(i64 elapsed) { 
+            RelaxedStore(&Stats->BlockedTicks, RelaxedLoad(&Stats->BlockedTicks) + elapsed); 
+        } 
+ 
+        void IncrementSentEvents() { 
+            RelaxedStore(&Stats->SentEvents, RelaxedLoad(&Stats->SentEvents) + 1); 
+        } 
+ 
+        void IncrementPreemptedEvents() { 
+            RelaxedStore(&Stats->PreemptedEvents, RelaxedLoad(&Stats->PreemptedEvents) + 1); 
+        } 
+ 
+        void DecrementActorsAliveByActivity(ui32 activityType) { 
+            if (activityType >= Stats->MaxActivityType()) { 
+                activityType = 0; 
+            } 
+            RelaxedStore(&Stats->ActorsAliveByActivity[activityType], Stats->ActorsAliveByActivity[activityType] - 1); 
+        } 
+ 
+        inline void IncrementNonDeliveredEvents() { 
+            RelaxedStore(&Stats->NonDeliveredEvents, RelaxedLoad(&Stats->NonDeliveredEvents) + 1); 
+        } 
+ 
+        inline void IncrementMailboxPushedOutBySoftPreemption() { 
+            RelaxedStore(&Stats->MailboxPushedOutBySoftPreemption, RelaxedLoad(&Stats->MailboxPushedOutBySoftPreemption) + 1); 
+        } 
+ 
+        inline void IncrementMailboxPushedOutByTime() { 
+            RelaxedStore(&Stats->MailboxPushedOutByTime, RelaxedLoad(&Stats->MailboxPushedOutByTime) + 1); 
+        } 
+ 
+        inline void IncrementMailboxPushedOutByEventCount() { 
+            RelaxedStore(&Stats->MailboxPushedOutByEventCount, RelaxedLoad(&Stats->MailboxPushedOutByEventCount) + 1); 
+        } 
+ 
+        inline void IncrementEmptyMailboxActivation() { 
+            RelaxedStore(&Stats->EmptyMailboxActivation, RelaxedLoad(&Stats->EmptyMailboxActivation) + 1); 
+        } 
+ 
+        double AddActivationStats(i64 scheduleTs, i64 deliveredTs) { 
+            i64 ts = deliveredTs > scheduleTs ? deliveredTs - scheduleTs : 0; 
+            double usec = NHPTimer::GetSeconds(ts) * 1000000.0; 
+            Stats->ActivationTimeHistogram.Add(usec); 
+            return usec; 
+        } 
+ 
+        ui64 AddEventDeliveryStats(i64 sentTs, i64 deliveredTs) { 
+            ui64 usecDeliv = deliveredTs > sentTs ? NHPTimer::GetSeconds(deliveredTs - sentTs) * 1000000 : 0; 
+            Stats->EventDeliveryTimeHistogram.Add(usecDeliv); 
+            return usecDeliv; 
+        } 
+ 
+        i64 AddEventProcessingStats(i64 deliveredTs, i64 processedTs, ui32 activityType, ui64 scheduled) { 
+            i64 elapsed = processedTs - deliveredTs; 
+            ui64 usecElapsed = NHPTimer::GetSeconds(elapsed) * 1000000; 
+            activityType = (activityType >= Stats->MaxActivityType()) ? 0 : activityType; 
+            Stats->EventProcessingCountHistogram.Add(usecElapsed); 
+            Stats->EventProcessingTimeHistogram.Add(usecElapsed, elapsed); 
+            RelaxedStore(&Stats->ReceivedEvents, RelaxedLoad(&Stats->ReceivedEvents) + 1); 
+            RelaxedStore(&Stats->ReceivedEventsByActivity[activityType], RelaxedLoad(&Stats->ReceivedEventsByActivity[activityType]) + 1); 
+            RelaxedStore(&Stats->ScheduledEventsByActivity[activityType], RelaxedLoad(&Stats->ScheduledEventsByActivity[activityType]) + scheduled); 
+            AddElapsedCycles(activityType, elapsed); 
+            return elapsed; 
+        } 
+ 
+        void UpdateActorsStats(size_t dyingActorsCnt) { 
+            if (dyingActorsCnt) { 
+                AtomicAdd(Executor->DestroyedActors, dyingActorsCnt); 
+            } 
+            RelaxedStore(&Stats->PoolDestroyedActors, (ui64)RelaxedLoad(&Executor->DestroyedActors)); 
+            RelaxedStore(&Stats->PoolActorRegistrations, (ui64)RelaxedLoad(&Executor->ActorRegistrations)); 
+            RelaxedStore(&Stats->PoolAllocatedMailboxes, MailboxTable->GetAllocatedMailboxCount()); 
+        } 
+ 
+        void UpdateThreadTime() { 
+            RelaxedStore(&WorkerStats.CpuNs, ThreadCPUTime() * 1000); 
+        } 
+#else 
+        void GetCurrentStats(TExecutorThreadStats&) const {} 
+        inline void AddElapsedCycles(ui32, i64) {} 
+        inline void AddParkedCycles(i64) {} 
+        inline void AddBlockedCycles(i64) {} 
+        inline void IncrementSentEvents() {} 
+        inline void IncrementPreemptedEvents() {} 
+        inline void IncrementMailboxPushedOutBySoftPreemption() {} 
+        inline void IncrementMailboxPushedOutByTime() {} 
+        inline void IncrementMailboxPushedOutByEventCount() {} 
+        inline void IncrementEmptyMailboxActivation() {} 
+        void DecrementActorsAliveByActivity(ui32) {} 
+        void IncrementNonDeliveredEvents() {} 
+        double AddActivationStats(i64, i64) { return 0; } 
+        ui64 AddEventDeliveryStats(i64, i64) { return 0; } 
+        i64 AddEventProcessingStats(i64, i64, ui32, ui64) { return 0; } 
+        void UpdateActorsStats(size_t, IExecutorPool*) {} 
+        void UpdateThreadTime() {} 
+#endif 
+ 
+        void Switch(IExecutorPool* executor, 
+                    TMailboxTable* mailboxTable, 
+                    ui64 timePerMailboxTs, 
+                    ui32 eventsPerMailbox, 
+                    ui64 softDeadlineTs, 
+                    TExecutorThreadStats* stats) 
+        { 
+            Executor = executor; 
+            MailboxTable = mailboxTable; 
+            TimePerMailboxTs = timePerMailboxTs; 
+            EventsPerMailbox = eventsPerMailbox; 
+            SoftDeadlineTs = softDeadlineTs; 
+            Stats = stats; 
+            PoolId = Executor ? Executor->PoolId : MaxPools; 
+        } 
+ 
+        void SwitchToIdle() { 
+            Executor = nullptr; 
+            MailboxTable = nullptr; 
+            //Stats = &WorkerStats; // TODO: in actorsystem 2.0 idle stats cannot be related to specific pool 
+            PoolId = MaxPools; 
+        } 
+    }; 
+} 
diff --git a/library/cpp/actors/core/ya.make b/library/cpp/actors/core/ya.make
index 880a9d00db..9cb2e2d396 100644
--- a/library/cpp/actors/core/ya.make
+++ b/library/cpp/actors/core/ya.make
@@ -30,16 +30,16 @@ SRCS(
     actorsystem.h
     ask.cpp
     ask.h
-    balancer.h
-    balancer.cpp
+    balancer.h 
+    balancer.cpp 
     buffer.cpp
     buffer.h
     callstack.cpp
     callstack.h
-    config.h
-    cpu_manager.cpp
-    cpu_manager.h
-    cpu_state.h
+    config.h 
+    cpu_manager.cpp 
+    cpu_manager.h 
+    cpu_state.h 
     defs.h
     event.cpp
     event.h
@@ -56,8 +56,8 @@ SRCS(
     executor_pool_basic.h
     executor_pool_io.cpp
     executor_pool_io.h
-    executor_pool_united.cpp
-    executor_pool_united.h
+    executor_pool_united.cpp 
+    executor_pool_united.h 
     executor_thread.cpp
     executor_thread.h
     hfunc.h
@@ -66,7 +66,7 @@ SRCS(
     invoke.h
     io_dispatcher.cpp
     io_dispatcher.h
-    lease.h
+    lease.h 
     log.cpp
     log.h
     log_settings.cpp
@@ -82,9 +82,9 @@ SRCS(
     mon.h
     mon_stats.h
     monotonic.cpp
-    monotonic.h
-    worker_context.cpp
-    worker_context.h
+    monotonic.h 
+    worker_context.cpp 
+    worker_context.h 
     probes.cpp
     probes.h
     process_stats.cpp
diff --git a/library/cpp/actors/dnscachelib/dnscache.cpp b/library/cpp/actors/dnscachelib/dnscache.cpp
index 649339ddb2..026491bcf1 100644
--- a/library/cpp/actors/dnscachelib/dnscache.cpp
+++ b/library/cpp/actors/dnscachelib/dnscache.cpp
@@ -1,5 +1,5 @@
 #include "dnscache.h"
-#include "probes.h"
+#include "probes.h" 
 #include "timekeeper.h"
 
 #include <contrib/libs/c-ares/ares.h>
@@ -8,8 +8,8 @@
 
 const TDnsCache::THost TDnsCache::NullHost;
 
-LWTRACE_USING(DNSCACHELIB_PROVIDER);
-
+LWTRACE_USING(DNSCACHELIB_PROVIDER); 
+ 
 static_assert(sizeof(ares_channel) == sizeof(void*), "expect sizeof(ares_channel) == sizeof(void *)");
 
 TDnsCache::TDnsCache(bool allowIpv4, bool allowIpv6, time_t lifetime, time_t neg, ui32 timeout)
@@ -33,11 +33,11 @@ TDnsCache::TDnsCache(bool allowIpv4, bool allowIpv6, time_t lifetime, time_t neg
     ares_channel chan;
 
     if (ares_init(&chan) != ARES_SUCCESS) {
-        LWPROBE(AresInitFailed);
+        LWPROBE(AresInitFailed); 
         ythrow yexception() << "ares_init() failed";
     }
     Channel = chan;
-    LWPROBE(Created);
+    LWPROBE(Created); 
 }
 
 TDnsCache::~TDnsCache(void) {
@@ -45,7 +45,7 @@ TDnsCache::~TDnsCache(void) {
 
     ares_cancel(chan);
     ares_destroy(chan);
-    LWPROBE(Destroyed);
+    LWPROBE(Destroyed); 
 
 #ifdef _win_
     ares_library_cleanup();
@@ -112,7 +112,7 @@ NAddr::IRemoteAddrPtr TDnsCache::GetAddr(
         }
     }
 
-    LWPROBE(FamilyMismatch, family, AllowIpV4, AllowIpV6);
+    LWPROBE(FamilyMismatch, family, AllowIpV4, AllowIpV6); 
     return nullptr;
 }
 
@@ -170,7 +170,7 @@ bool TDnsCache::THost::IsStale(int family, const TDnsCache* ctx) const noexcept
 const TDnsCache::THost&
 TDnsCache::Resolve(const TString& hostname, int family, bool cacheOnly) {
     if (!ValidateHName(hostname)) {
-        LWPROBE(ResolveNullHost, hostname, family);
+        LWPROBE(ResolveNullHost, hostname, family); 
         return NullHost;
     }
 
@@ -185,15 +185,15 @@ TDnsCache::Resolve(const TString& hostname, int family, bool cacheOnly) {
             if (!p->second.IsStale(family, this)) {
                 /* Recently resolved, just return cached value */
                 ACacheHits += 1;
-                THost& host = p->second;
-                LWPROBE(ResolveFromCache, hostname, family, host.AddrsV4ToString(), host.AddrsV6ToString(), ACacheHits);
-                return host;
-            } else {
-                LWPROBE(ResolveCacheTimeout, hostname);
+                THost& host = p->second; 
+                LWPROBE(ResolveFromCache, hostname, family, host.AddrsV4ToString(), host.AddrsV6ToString(), ACacheHits); 
+                return host; 
+            } else { 
+                LWPROBE(ResolveCacheTimeout, hostname); 
             }
         } else {
             /* Never resolved, create cache entry */
-            LWPROBE(ResolveCacheNew, hostname);
+            LWPROBE(ResolveCacheNew, hostname); 
             p = HostCache.insert(std::make_pair(hostname, THost())).first;
         }
         ACacheMisses += 1;
@@ -227,7 +227,7 @@ TDnsCache::Resolve(const TString& hostname, int family, bool cacheOnly) {
 
     WaitTask(inprogress);
 
-    LWPROBE(ResolveDone, hostname, family, p->second.AddrsV4ToString(), p->second.AddrsV6ToString());
+    LWPROBE(ResolveDone, hostname, family, p->second.AddrsV4ToString(), p->second.AddrsV6ToString()); 
     return p->second;
 }
 
@@ -415,31 +415,31 @@ void TDnsCache::GHBACallback(void* arg, int status, int, struct hostent* info) {
     }
     AtomicSet(p->second.InProgress, 0);
 }
-
+ 
 TString TDnsCache::THost::AddrsV4ToString() const {
-    TStringStream ss;
-    bool first = false;
-    for (TIpHost addr : AddrsV4) {
+    TStringStream ss; 
+    bool first = false; 
+    for (TIpHost addr : AddrsV4) { 
         ss << (first ? "" : " ") << IpToString(addr);
-        first = false;
-    }
-    return ss.Str();
-}
-
+        first = false; 
+    } 
+    return ss.Str(); 
+} 
+ 
 TString TDnsCache::THost::AddrsV6ToString() const {
-    TStringStream ss;
-    bool first = false;
-    for (in6_addr addr : AddrsV6) {
-        struct sockaddr_in6 sin6;
-        Zero(sin6);
-        sin6.sin6_family = AF_INET6;
-        sin6.sin6_addr = addr;
-
-        NAddr::TIPv6Addr addr6(sin6);
+    TStringStream ss; 
+    bool first = false; 
+    for (in6_addr addr : AddrsV6) { 
+        struct sockaddr_in6 sin6; 
+        Zero(sin6); 
+        sin6.sin6_family = AF_INET6; 
+        sin6.sin6_addr = addr; 
+ 
+        NAddr::TIPv6Addr addr6(sin6); 
         ss << (first ? "" : " ") << NAddr::PrintHost(addr6);
-        first = false;
-    }
-    return ss.Str();
-}
+        first = false; 
+    } 
+    return ss.Str(); 
+} 
 
 TDnsCache::TAresLibInit TDnsCache::InitAresLib;
diff --git a/library/cpp/actors/dnscachelib/dnscache.h b/library/cpp/actors/dnscachelib/dnscache.h
index 3313a251a1..03eec356d2 100644
--- a/library/cpp/actors/dnscachelib/dnscache.h
+++ b/library/cpp/actors/dnscachelib/dnscache.h
@@ -65,7 +65,7 @@ private:
         time_t ResolvedV6 = 0;
         time_t NotFoundV6 = 0;
         TAtomic InProgressV6 = 0;
-
+ 
         TString AddrsV4ToString() const;
         TString AddrsV6ToString() const;
 
diff --git a/library/cpp/actors/dnscachelib/probes.cpp b/library/cpp/actors/dnscachelib/probes.cpp
index 07734ab20f..441e0609f9 100644
--- a/library/cpp/actors/dnscachelib/probes.cpp
+++ b/library/cpp/actors/dnscachelib/probes.cpp
@@ -1,3 +1,3 @@
-#include "probes.h"
-
-LWTRACE_DEFINE_PROVIDER(DNSCACHELIB_PROVIDER)
+#include "probes.h" 
+ 
+LWTRACE_DEFINE_PROVIDER(DNSCACHELIB_PROVIDER) 
diff --git a/library/cpp/actors/dnscachelib/probes.h b/library/cpp/actors/dnscachelib/probes.h
index 313b7b8712..6416e997b7 100644
--- a/library/cpp/actors/dnscachelib/probes.h
+++ b/library/cpp/actors/dnscachelib/probes.h
@@ -1,7 +1,7 @@
-#pragma once
-
+#pragma once 
+ 
 #include <library/cpp/lwtrace/all.h>
-
+ 
 #define DNSCACHELIB_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES)           \
     PROBE(Created, GROUPS(), TYPES(), NAMES())                             \
     PROBE(Destroyed, GROUPS(), TYPES(), NAMES())                           \
@@ -30,6 +30,6 @@
           GROUPS(),                                                        \
           TYPES(TString),                                                  \
           NAMES("hostname"))                                               \
-    /**/
-
-LWTRACE_DECLARE_PROVIDER(DNSCACHELIB_PROVIDER)
+    /**/ 
+ 
+LWTRACE_DECLARE_PROVIDER(DNSCACHELIB_PROVIDER) 
diff --git a/library/cpp/actors/dnscachelib/ya.make b/library/cpp/actors/dnscachelib/ya.make
index e3a6ad6202..3ee25102c1 100644
--- a/library/cpp/actors/dnscachelib/ya.make
+++ b/library/cpp/actors/dnscachelib/ya.make
@@ -11,8 +11,8 @@ OWNER(
 SRCS(
     dnscache.cpp
     dnscache.h
-    probes.cpp
-    probes.h
+    probes.cpp 
+    probes.h 
     timekeeper.h
 )
 
diff --git a/library/cpp/actors/helpers/flow_controlled_queue.cpp b/library/cpp/actors/helpers/flow_controlled_queue.cpp
index d75cc54023..46addfa708 100644
--- a/library/cpp/actors/helpers/flow_controlled_queue.cpp
+++ b/library/cpp/actors/helpers/flow_controlled_queue.cpp
@@ -2,7 +2,7 @@
 
 #include <library/cpp/actors/core/interconnect.h>
 #include <library/cpp/actors/core/hfunc.h>
-#include <library/cpp/actors/util/datetime.h>
+#include <library/cpp/actors/util/datetime.h> 
 
 #include <util/generic/deque.h>
 #include <util/datetime/cputimer.h>
@@ -29,7 +29,7 @@ public:
         , Source(source)
         , Cookie(cookie)
         , Flags(flags)
-        , StartCounter(GetCycleCountFast())
+        , StartCounter(GetCycleCountFast()) 
     {}
 
     STATEFN(StateWait) {
@@ -41,7 +41,7 @@ public:
     }
 
     TDuration AccumulatedLatency() const {
-        const ui64 cc = GetCycleCountFast() - StartCounter;
+        const ui64 cc = GetCycleCountFast() - StartCounter; 
         return CyclesToDuration(cc);
     }
 
diff --git a/library/cpp/actors/interconnect/interconnect_channel.cpp b/library/cpp/actors/interconnect/interconnect_channel.cpp
index a66ba2a154..9aee8fd5a2 100644
--- a/library/cpp/actors/interconnect/interconnect_channel.cpp
+++ b/library/cpp/actors/interconnect/interconnect_channel.cpp
@@ -3,13 +3,13 @@
 #include <library/cpp/actors/core/events.h>
 #include <library/cpp/actors/core/executor_thread.h>
 #include <library/cpp/actors/core/log.h>
-#include <library/cpp/actors/core/probes.h>
+#include <library/cpp/actors/core/probes.h> 
 #include <library/cpp/actors/protos/services_common.pb.h>
 #include <library/cpp/actors/prof/tag.h>
 #include <library/cpp/digest/crc32c/crc32c.h>
 
-LWTRACE_USING(ACTORLIB_PROVIDER);
-
+LWTRACE_USING(ACTORLIB_PROVIDER); 
+ 
 namespace NActors {
     DECLARE_WILSON_EVENT(EventSentToSocket);
     DECLARE_WILSON_EVENT(EventReceivedFromSocket);
@@ -25,8 +25,8 @@ namespace NActors {
 //            WILSON_TRACE(*ctx, &traceId, EventSentToSocket);
 //        }
         traceId.Serialize(&event.Descr.TraceId);
-        LWTRACK(SerializeToPacketEnd, event.Orbit, PeerNodeId, ChannelId, OutputQueueSize, task.GetDataSize());
-        task.Orbit.Take(event.Orbit);
+        LWTRACK(SerializeToPacketEnd, event.Orbit, PeerNodeId, ChannelId, OutputQueueSize, task.GetDataSize()); 
+        task.Orbit.Take(event.Orbit); 
 
         event.Descr.Flags = (event.Descr.Flags & ~IEventHandle::FlagForwardOnNondelivery) |
             (ExtendedFormat ? IEventHandle::FlagExtendedFormat : 0);
@@ -58,7 +58,7 @@ namespace NActors {
             switch (State) {
                 case EState::INITIAL:
                     event.InitChecksum();
-                    LWTRACK(SerializeToPacketBegin, event.Orbit, PeerNodeId, ChannelId, OutputQueueSize);
+                    LWTRACK(SerializeToPacketBegin, event.Orbit, PeerNodeId, ChannelId, OutputQueueSize); 
                     if (event.Event) {
                         State = EState::CHUNKER;
                         IEventBase *base = event.Event.Get();
diff --git a/library/cpp/actors/interconnect/interconnect_channel.h b/library/cpp/actors/interconnect/interconnect_channel.h
index e4a0ae3cda..a26cb7a92c 100644
--- a/library/cpp/actors/interconnect/interconnect_channel.h
+++ b/library/cpp/actors/interconnect/interconnect_channel.h
@@ -42,11 +42,11 @@ namespace NActors {
 
     class TEventOutputChannel : public TInterconnectLoggingBase {
     public:
-        TEventOutputChannel(TEventHolderPool& pool, ui16 id, ui32 peerNodeId, ui32 maxSerializedEventSize,
+        TEventOutputChannel(TEventHolderPool& pool, ui16 id, ui32 peerNodeId, ui32 maxSerializedEventSize, 
                 std::shared_ptr<IInterconnectMetrics> metrics, TSessionParams params)
-            : TInterconnectLoggingBase(Sprintf("OutputChannel %" PRIu16 " [node %" PRIu32 "]", id, peerNodeId))
+            : TInterconnectLoggingBase(Sprintf("OutputChannel %" PRIu16 " [node %" PRIu32 "]", id, peerNodeId)) 
             , Pool(pool)
-            , PeerNodeId(peerNodeId)
+            , PeerNodeId(peerNodeId) 
             , ChannelId(id)
             , Metrics(std::move(metrics))
             , Params(std::move(params))
@@ -56,11 +56,11 @@ namespace NActors {
         ~TEventOutputChannel() {
         }
 
-        std::pair<ui32, TEventHolder*> Push(IEventHandle& ev) {
+        std::pair<ui32, TEventHolder*> Push(IEventHandle& ev) { 
             TEventHolder& event = Pool.Allocate(Queue);
             const ui32 bytes = event.Fill(ev) + sizeof(TEventDescr);
             OutputQueueSize += bytes;
-            return std::make_pair(bytes, &event);
+            return std::make_pair(bytes, &event); 
         }
 
         void DropConfirmed(ui64 confirm);
@@ -86,7 +86,7 @@ namespace NActors {
         void NotifyUndelivered();
 
         TEventHolderPool& Pool;
-        const ui32 PeerNodeId;
+        const ui32 PeerNodeId; 
         const ui16 ChannelId;
         std::shared_ptr<IInterconnectMetrics> Metrics;
         const TSessionParams Params;
diff --git a/library/cpp/actors/interconnect/interconnect_common.h b/library/cpp/actors/interconnect/interconnect_common.h
index 285709a00c..104573daaa 100644
--- a/library/cpp/actors/interconnect/interconnect_common.h
+++ b/library/cpp/actors/interconnect/interconnect_common.h
@@ -2,7 +2,7 @@
 
 #include <library/cpp/actors/core/actorid.h>
 #include <library/cpp/actors/core/actorsystem.h>
-#include <library/cpp/actors/util/datetime.h>
+#include <library/cpp/actors/util/datetime.h> 
 #include <library/cpp/monlib/dynamic_counters/counters.h>
 #include <library/cpp/monlib/metrics/metric_registry.h>
 #include <util/generic/map.h>
@@ -82,7 +82,7 @@ namespace NActors {
         TAtomicBase MaxDestructorQueueSize = 1024 * 1024 * 1024;
         TString ClusterUUID;
         TVector<TString> AcceptUUID;
-        ui64 StartTime = GetCycleCountFast();
+        ui64 StartTime = GetCycleCountFast(); 
         TString TechnicalSelfHostName;
         TInitWhiteboardCallback InitWhiteboard;
         TUpdateWhiteboardCallback UpdateWhiteboard;
diff --git a/library/cpp/actors/interconnect/interconnect_tcp_input_session.cpp b/library/cpp/actors/interconnect/interconnect_tcp_input_session.cpp
index 0abe9fe659..e445c42f70 100644
--- a/library/cpp/actors/interconnect/interconnect_tcp_input_session.cpp
+++ b/library/cpp/actors/interconnect/interconnect_tcp_input_session.cpp
@@ -1,7 +1,7 @@
 #include "interconnect_tcp_session.h"
 #include "interconnect_tcp_proxy.h"
 #include <library/cpp/actors/core/probes.h>
-#include <library/cpp/actors/util/datetime.h>
+#include <library/cpp/actors/util/datetime.h> 
 
 namespace NActors {
     LWTRACE_USING(ACTORLIB_PROVIDER);
@@ -195,7 +195,7 @@ namespace NActors {
             ConfirmedByInput = HeaderConfirm;
             if (AtomicGet(Context->ControlPacketId) <= HeaderConfirm && !NewPingProtocol) {
                 ui64 sendTime = AtomicGet(Context->ControlPacketSendTimer);
-                TDuration duration = CyclesToDuration(GetCycleCountFast() - sendTime);
+                TDuration duration = CyclesToDuration(GetCycleCountFast() - sendTime); 
                 const auto durationUs = duration.MicroSeconds();
                 Metrics->UpdateLegacyPingTimeHist(durationUs);
                 PingQ.push_back(duration);
@@ -217,7 +217,7 @@ namespace NActors {
             Send(SessionId, new TEvProcessPingRequest(HeaderSerial & ~TTcpPacketBuf::PingRequestMask));
         } else if (HeaderSerial & TTcpPacketBuf::PingResponseMask) {
             const ui64 sent = HeaderSerial & ~TTcpPacketBuf::PingResponseMask;
-            const ui64 received = GetCycleCountFast();
+            const ui64 received = GetCycleCountFast(); 
             HandlePingResponse(CyclesToDuration(received - sent));
         } else if (HeaderSerial & TTcpPacketBuf::ClockMask) {
             HandleClock(TInstant::MicroSeconds(HeaderSerial & ~TTcpPacketBuf::ClockMask));
diff --git a/library/cpp/actors/interconnect/interconnect_tcp_session.cpp b/library/cpp/actors/interconnect/interconnect_tcp_session.cpp
index 2ded7f9f53..8da77bcd1d 100644
--- a/library/cpp/actors/interconnect/interconnect_tcp_session.cpp
+++ b/library/cpp/actors/interconnect/interconnect_tcp_session.cpp
@@ -5,7 +5,7 @@
 #include <library/cpp/actors/core/probes.h>
 #include <library/cpp/actors/core/log.h>
 #include <library/cpp/actors/core/interconnect.h>
-#include <library/cpp/actors/util/datetime.h>
+#include <library/cpp/actors/util/datetime.h> 
 #include <library/cpp/actors/protos/services_common.pb.h>
 #include <library/cpp/monlib/service/pages/templates.h>
 
@@ -128,20 +128,20 @@ namespace NActors {
         auto& oChannel = ChannelScheduler->GetOutputChannel(evChannel);
         const bool wasWorking = oChannel.IsWorking();
 
-        const auto [dataSize, event] = oChannel.Push(*ev);
-        LWTRACK(ForwardEvent, event->Orbit, Proxy->PeerNodeId, event->Descr.Type, event->Descr.Flags, LWACTORID(event->Descr.Recipient), LWACTORID(event->Descr.Sender), event->Descr.Cookie, event->EventSerializedSize);
-
-        TotalOutputQueueSize += dataSize;
+        const auto [dataSize, event] = oChannel.Push(*ev); 
+        LWTRACK(ForwardEvent, event->Orbit, Proxy->PeerNodeId, event->Descr.Type, event->Descr.Flags, LWACTORID(event->Descr.Recipient), LWACTORID(event->Descr.Sender), event->Descr.Cookie, event->EventSerializedSize); 
+ 
+        TotalOutputQueueSize += dataSize; 
         Proxy->Metrics->AddOutputBuffersTotalSize(dataSize);
-        if (!wasWorking) {
-            // this channel has returned to work -- it was empty and this we have just put first event in the queue
-            ChannelScheduler->AddToHeap(oChannel, EqualizeCounter);
+        if (!wasWorking) { 
+            // this channel has returned to work -- it was empty and this we have just put first event in the queue 
+            ChannelScheduler->AddToHeap(oChannel, EqualizeCounter); 
         }
 
         SetOutputStuckFlag(true);
         ++NumEventsInReadyChannels;
 
-        LWTRACK(EnqueueEvent, event->Orbit, Proxy->PeerNodeId, NumEventsInReadyChannels, GetWriteBlockedTotal(), evChannel, oChannel.GetQueueSize(), oChannel.GetBufferedAmountOfData());
+        LWTRACK(EnqueueEvent, event->Orbit, Proxy->PeerNodeId, NumEventsInReadyChannels, GetWriteBlockedTotal(), evChannel, oChannel.GetQueueSize(), oChannel.GetBufferedAmountOfData()); 
         WILSON_TRACE(*TlsActivationContext, &ev->TraceId, OutputQueuePush,
                      QueueSizeInEvents = oChannel.GetQueueSize(),
                      QueueSizeInBytes = oChannel.GetBufferedAmountOfData());
@@ -179,7 +179,7 @@ namespace NActors {
             } else {
                 TActivationContext::Send(ev);
             }
-            LWPROBE(StartBatching, Proxy->PeerNodeId, batchPeriod.MillisecondsFloat());
+            LWPROBE(StartBatching, Proxy->PeerNodeId, batchPeriod.MillisecondsFloat()); 
             LOG_DEBUG_IC_SESSION("ICS17", "batching started");
         }
     }
@@ -315,7 +315,7 @@ namespace NActors {
 
             // update ping time
             Ping = msg.Ping;
-            LWPROBE(UpdateFromInputSession, Proxy->PeerNodeId, Ping.MillisecondsFloat());
+            LWPROBE(UpdateFromInputSession, Proxy->PeerNodeId, Ping.MillisecondsFloat()); 
 
             bool needConfirm = false;
 
@@ -342,7 +342,7 @@ namespace NActors {
 
             // generate more traffic if we have unblocked state now
             if (unblockedSomething) {
-                LWPROBE(UnblockByDropConfirmed, Proxy->PeerNodeId, NHPTimer::GetSeconds(GetCycleCountFast() - ev->SendTime) * 1000.0);
+                LWPROBE(UnblockByDropConfirmed, Proxy->PeerNodeId, NHPTimer::GetSeconds(GetCycleCountFast() - ev->SendTime) * 1000.0); 
                 GenerateTraffic();
             }
 
@@ -380,7 +380,7 @@ namespace NActors {
 
     void TInterconnectSessionTCP::HandleRam(TEvRam::TPtr& ev) {
         if (ev->Get() == RamInQueue) {
-            LWPROBE(FinishRam, Proxy->PeerNodeId, NHPTimer::GetSeconds(GetCycleCountFast() - ev->SendTime) * 1000.0);
+            LWPROBE(FinishRam, Proxy->PeerNodeId, NHPTimer::GetSeconds(GetCycleCountFast() - ev->SendTime) * 1000.0); 
             RamInQueue = nullptr;
             GenerateTraffic();
         }
@@ -391,7 +391,7 @@ namespace NActors {
         IssuePingRequest();
 
         if (RamInQueue && !RamInQueue->Batching) {
-            LWPROBE(SkipGenerateTraffic, Proxy->PeerNodeId, NHPTimer::GetSeconds(GetCycleCountFast() - RamStartedCycles) * 1000.0);
+            LWPROBE(SkipGenerateTraffic, Proxy->PeerNodeId, NHPTimer::GetSeconds(GetCycleCountFast() - RamStartedCycles) * 1000.0); 
             return; // we'll do it a bit later
         } else {
             RamInQueue = nullptr;
@@ -399,51 +399,51 @@ namespace NActors {
 
         LOG_DEBUG_IC_SESSION("ICS19", "GenerateTraffic");
 
-        // There is a tradeoff between fairness and efficiency.
-        // The less traffic is generated here, the less buffering is after fair scheduler,
-        // the more fair system is, the less latency is present.
-        // The more traffic is generated here, the less syscalls and actor-system overhead occurs,
-        // the less cpu is consumed.
-        static const ui64 generateLimit = 64 * 1024;
-
+        // There is a tradeoff between fairness and efficiency. 
+        // The less traffic is generated here, the less buffering is after fair scheduler, 
+        // the more fair system is, the less latency is present. 
+        // The more traffic is generated here, the less syscalls and actor-system overhead occurs, 
+        // the less cpu is consumed. 
+        static const ui64 generateLimit = 64 * 1024; 
+ 
         const ui64 sizeBefore = TotalOutputQueueSize;
-        ui32 generatedPackets = 0;
-        ui64 generatedBytes = 0;
-        ui64 generateStarted = GetCycleCountFast();
+        ui32 generatedPackets = 0; 
+        ui64 generatedBytes = 0; 
+        ui64 generateStarted = GetCycleCountFast(); 
 
         // apply traffic changes
         auto accountTraffic = [&] { ChannelScheduler->ForEach([](TEventOutputChannel& channel) { channel.AccountTraffic(); }); };
 
-        // first, we create as many data packets as we can generate under certain conditions; they include presence
-        // of events in channels queues and in flight fitting into requested limit; after we hit one of these conditions
-        // we exit cycle
-        while (Socket && NumEventsInReadyChannels && InflightDataAmount < GetTotalInflightAmountOfData() && !ReceiveContext->WriteBlockedByFullSendBuffer) {
-            if (generatedBytes >= generateLimit) {
-                // resume later but ensure that we have issued at least one packet
+        // first, we create as many data packets as we can generate under certain conditions; they include presence 
+        // of events in channels queues and in flight fitting into requested limit; after we hit one of these conditions 
+        // we exit cycle 
+        while (Socket && NumEventsInReadyChannels && InflightDataAmount < GetTotalInflightAmountOfData() && !ReceiveContext->WriteBlockedByFullSendBuffer) { 
+            if (generatedBytes >= generateLimit) { 
+                // resume later but ensure that we have issued at least one packet 
                 RamInQueue = new TEvRam(false);
                 Send(SelfId(), RamInQueue);
-                RamStartedCycles = GetCycleCountFast();
-                LWPROBE(StartRam, Proxy->PeerNodeId);
-                break;
+                RamStartedCycles = GetCycleCountFast(); 
+                LWPROBE(StartRam, Proxy->PeerNodeId); 
+                break; 
             }
 
-            try {
-                generatedBytes += MakePacket(true);
-                ++generatedPackets;
-            } catch (const TExSerializedEventTooLarge& ex) {
-                // terminate session if the event can't be serialized properly
-                accountTraffic();
-                LOG_CRIT_IC("ICS31", "serialized event Type# 0x%08" PRIx32 " is too large", ex.Type);
-                return Terminate(TDisconnectReason::EventTooLarge());
+            try { 
+                generatedBytes += MakePacket(true); 
+                ++generatedPackets; 
+            } catch (const TExSerializedEventTooLarge& ex) { 
+                // terminate session if the event can't be serialized properly 
+                accountTraffic(); 
+                LOG_CRIT_IC("ICS31", "serialized event Type# 0x%08" PRIx32 " is too large", ex.Type); 
+                return Terminate(TDisconnectReason::EventTooLarge()); 
             }
         }
 
-        if (Socket) {
-            WriteData();
-        }
-
-        LWPROBE(GenerateTraffic, Proxy->PeerNodeId, NHPTimer::GetSeconds(GetCycleCountFast() - generateStarted) * 1000.0, sizeBefore - TotalOutputQueueSize, generatedPackets, generatedBytes);
-
+        if (Socket) { 
+            WriteData(); 
+        } 
+ 
+        LWPROBE(GenerateTraffic, Proxy->PeerNodeId, NHPTimer::GetSeconds(GetCycleCountFast() - generateStarted) * 1000.0, sizeBefore - TotalOutputQueueSize, generatedPackets, generatedBytes); 
+ 
         accountTraffic();
         EqualizeCounter += ChannelScheduler->Equalize();
     }
@@ -520,10 +520,10 @@ namespace NActors {
             ReceiveContext->WriteBlockedByFullSendBuffer ? "true" : "false");
         if (std::exchange(ReceiveContext->WriteBlockedByFullSendBuffer, false)) {
             Proxy->Metrics->IncUsefulWriteWakeups();
-            ui64 nowCycles = GetCycleCountFast();
-            double blockedUs = NHPTimer::GetSeconds(nowCycles - WriteBlockedCycles) * 1000000.0;
-            LWPROBE(ReadyWrite, Proxy->PeerNodeId, NHPTimer::GetSeconds(nowCycles - ev->SendTime) * 1000.0, blockedUs / 1000.0);
-            WriteBlockedTotal += TDuration::MicroSeconds(blockedUs);
+            ui64 nowCycles = GetCycleCountFast(); 
+            double blockedUs = NHPTimer::GetSeconds(nowCycles - WriteBlockedCycles) * 1000000.0; 
+            LWPROBE(ReadyWrite, Proxy->PeerNodeId, NHPTimer::GetSeconds(nowCycles - ev->SendTime) * 1000.0, blockedUs / 1000.0); 
+            WriteBlockedTotal += TDuration::MicroSeconds(blockedUs); 
             GenerateTraffic();
         } else if (!ev->Cookie) {
             Proxy->Metrics->IncSpuriousWriteWakeups();
@@ -602,7 +602,7 @@ namespace NActors {
                     Y_VERIFY(static_cast<size_t>(r) <= BytesUnwritten);
                     BytesUnwritten -= r;
                     written += r;
-                    ui64 packets = 0;
+                    ui64 packets = 0; 
 
                     // advance SendQueuePos to eat all processed items
                     for (size_t amount = r; amount && SendQueuePos->DropBufs(amount); ++SendQueuePos) {
@@ -610,11 +610,11 @@ namespace NActors {
                             LastSentSerial = Max(LastSentSerial, SendQueuePos->GetSerial());
                         }
                         ++PacketsWrittenToSocket;
-                        ++packets;
-                        LWTRACK(PacketWrittenToSocket, SendQueuePos->Orbit, Proxy->PeerNodeId, PacketsWrittenToSocket, SendQueuePos->TriedWriting, SendQueuePos->GetDataSize(), BytesUnwritten, GetWriteBlockedTotal(), (SOCKET)*Socket);
+                        ++packets; 
+                        LWTRACK(PacketWrittenToSocket, SendQueuePos->Orbit, Proxy->PeerNodeId, PacketsWrittenToSocket, SendQueuePos->TriedWriting, SendQueuePos->GetDataSize(), BytesUnwritten, GetWriteBlockedTotal(), (SOCKET)*Socket); 
                     }
-
-                    LWPROBE(WriteToSocket, Proxy->PeerNodeId, r, packets, PacketsWrittenToSocket, BytesUnwritten, GetWriteBlockedTotal(), (SOCKET)*Socket);
+ 
+                    LWPROBE(WriteToSocket, Proxy->PeerNodeId, r, packets, PacketsWrittenToSocket, BytesUnwritten, GetWriteBlockedTotal(), (SOCKET)*Socket); 
                 } else if (-r != EAGAIN && -r != EWOULDBLOCK) {
                     const TString message = r == 0 ? "connection closed by peer"
                         : err ? err
@@ -635,8 +635,8 @@ namespace NActors {
                     // TEvPollerReadyWrite event from poller; set up flag meaning this and wait for that event
                     Y_VERIFY(!ReceiveContext->WriteBlockedByFullSendBuffer);
                     ReceiveContext->WriteBlockedByFullSendBuffer = true;
-                    WriteBlockedCycles = GetCycleCountFast();
-                    LWPROBE(BlockedWrite, Proxy->PeerNodeId, SendQueue.size(), written);
+                    WriteBlockedCycles = GetCycleCountFast(); 
+                    LWPROBE(BlockedWrite, Proxy->PeerNodeId, SendQueue.size(), written); 
                     LOG_DEBUG_IC_SESSION("ICS18", "hit send buffer limit");
 
                     if (PollerToken) {
@@ -718,7 +718,7 @@ namespace NActors {
         }
     }
 
-    ui64 TInterconnectSessionTCP::MakePacket(bool data, TMaybe<ui64> pingMask) {
+    ui64 TInterconnectSessionTCP::MakePacket(bool data, TMaybe<ui64> pingMask) { 
         Y_VERIFY(Socket);
 
         TSendQueue::iterator packet;
@@ -759,7 +759,7 @@ namespace NActors {
             }
 
             if (AtomicGet(ReceiveContext->ControlPacketId) == 0) {
-                AtomicSet(ReceiveContext->ControlPacketSendTimer, GetCycleCountFast());
+                AtomicSet(ReceiveContext->ControlPacketSendTimer, GetCycleCountFast()); 
                 AtomicSet(ReceiveContext->ControlPacketId, OutputCounter);
             }
 
@@ -788,8 +788,8 @@ namespace NActors {
         packet->Sign();
 
         // count number of bytes pending for write
-        ui64 packetSize = (Params.UseModernFrame ? sizeof(TTcpPacketHeader_v2) : sizeof(TTcpPacketHeader_v1)) + packet->GetDataSize();
-        BytesUnwritten += packetSize;
+        ui64 packetSize = (Params.UseModernFrame ? sizeof(TTcpPacketHeader_v2) : sizeof(TTcpPacketHeader_v1)) + packet->GetDataSize(); 
+        BytesUnwritten += packetSize; 
 
         LOG_DEBUG_IC_SESSION("ICS22", "outgoing packet Serial# %" PRIu64 " Confirm# %" PRIu64 " DataSize# %zu"
             " InflightDataAmount# %" PRIu64 " BytesUnwritten# %" PRIu64, serial, lastInputSerial, packet->GetDataSize(),
@@ -799,13 +799,13 @@ namespace NActors {
         ResetFlushLogic();
 
         ++PacketsGenerated;
-        LWTRACK(PacketGenerated, packet->Orbit, Proxy->PeerNodeId, BytesUnwritten, InflightDataAmount, PacketsGenerated, packetSize);
+        LWTRACK(PacketGenerated, packet->Orbit, Proxy->PeerNodeId, BytesUnwritten, InflightDataAmount, PacketsGenerated, packetSize); 
 
         if (!data) {
             WriteData();
         }
-
-        return packetSize;
+ 
+        return packetSize; 
     }
 
     bool TInterconnectSessionTCP::DropConfirmed(ui64 confirm) {
@@ -836,14 +836,14 @@ namespace NActors {
             channel.DropConfirmed(lastDroppedSerial);
         });
 
-        const ui64 current = InflightDataAmount;
-        const ui64 limit = GetTotalInflightAmountOfData();
-        const bool unblockedSomething = current >= limit && current < limit + droppedDataAmount;
+        const ui64 current = InflightDataAmount; 
+        const ui64 limit = GetTotalInflightAmountOfData(); 
+        const bool unblockedSomething = current >= limit && current < limit + droppedDataAmount; 
 
         PacketsConfirmed += numDropped;
         InflightDataAmount -= droppedDataAmount;
         Proxy->Metrics->SubInflightDataAmount(droppedDataAmount);
-        LWPROBE(DropConfirmed, Proxy->PeerNodeId, droppedDataAmount, InflightDataAmount);
+        LWPROBE(DropConfirmed, Proxy->PeerNodeId, droppedDataAmount, InflightDataAmount); 
 
         LOG_DEBUG_IC_SESSION("ICS24", "exit InflightDataAmount: %" PRIu64 " bytes droppedDataAmount: %" PRIu64 " bytes"
             " dropped %" PRIu32 " packets", InflightDataAmount, droppedDataAmount, numDropped);
@@ -896,7 +896,7 @@ namespace NActors {
             }
         }
 
-        LWTRACK(FillSendingBuffer, task.Orbit, Proxy->PeerNodeId, bytesGenerated, NumEventsInReadyChannels, WriteBlockedTotal);
+        LWTRACK(FillSendingBuffer, task.Orbit, Proxy->PeerNodeId, bytesGenerated, NumEventsInReadyChannels, WriteBlockedTotal); 
         Y_VERIFY(bytesGenerated); // ensure we are not stalled in serialization
     }
 
@@ -967,15 +967,15 @@ namespace NActors {
 
         auto& lastpair = OutputQueueUtilization.Last();
         if (state)
-            lastpair.first -= GetCycleCountFast();
+            lastpair.first -= GetCycleCountFast(); 
         else
-            lastpair.first += GetCycleCountFast();
+            lastpair.first += GetCycleCountFast(); 
 
         OutputStuckFlag = state;
     }
 
     void TInterconnectSessionTCP::SwitchStuckPeriod() {
-        auto now = GetCycleCountFast();
+        auto now = GetCycleCountFast(); 
         if (OutputQueueUtilization.Size() != 0) {
             auto& lastpair = OutputQueueUtilization.Last();
             lastpair.second = now - lastpair.second;
@@ -1005,7 +1005,7 @@ namespace NActors {
     }
 
     ui64 TInterconnectSessionTCP::GetMaxCyclesPerEvent() const {
-        return DurationToCycles(TDuration::MicroSeconds(50));
+        return DurationToCycles(TDuration::MicroSeconds(50)); 
     }
 
     void TInterconnectSessionTCP::IssuePingRequest() {
@@ -1013,7 +1013,7 @@ namespace NActors {
         if (now >= LastPingTimestamp + PingPeriodicity) {
             LOG_DEBUG_IC_SESSION("ICS22", "Issuing ping request");
             if (Socket) {
-                MakePacket(false, GetCycleCountFast() | TTcpPacketBuf::PingRequestMask);
+                MakePacket(false, GetCycleCountFast() | TTcpPacketBuf::PingRequestMask); 
             }
             if (Socket) {
                 MakePacket(false, TInstant::Now().MicroSeconds() | TTcpPacketBuf::ClockMask);
diff --git a/library/cpp/actors/interconnect/interconnect_tcp_session.h b/library/cpp/actors/interconnect/interconnect_tcp_session.h
index 7fc00dbcc5..e347d9b799 100644
--- a/library/cpp/actors/interconnect/interconnect_tcp_session.h
+++ b/library/cpp/actors/interconnect/interconnect_tcp_session.h
@@ -6,7 +6,7 @@
 #include <library/cpp/actors/core/log.h>
 #include <library/cpp/actors/helpers/mon_histogram_helper.h>
 #include <library/cpp/actors/protos/services_common.pb.h>
-#include <library/cpp/actors/util/datetime.h>
+#include <library/cpp/actors/util/datetime.h> 
 #include <library/cpp/actors/util/rope.h>
 #include <library/cpp/actors/util/funnel_queue.h>
 #include <library/cpp/actors/util/recentwnd.h>
@@ -38,12 +38,12 @@ namespace NActors {
     public:
         TSlowPathChecker(TTraceCallback&& callback)
             : Callback(std::move(callback))
-            , Start(GetCycleCountFast())
+            , Start(GetCycleCountFast()) 
         {
         }
 
         ~TSlowPathChecker() {
-            const NHPTimer::STime end = GetCycleCountFast();
+            const NHPTimer::STime end = GetCycleCountFast(); 
             const NHPTimer::STime elapsed = end - Start;
             if (elapsed > 1000000) {
                 Callback(NHPTimer::GetSeconds(elapsed) * 1000);
@@ -63,7 +63,7 @@ namespace NActors {
     class TTimeLimit {
     public:
         TTimeLimit(ui64 limitInCycles)
-            : UpperLimit(limitInCycles == 0 ? 0 : GetCycleCountFast() + limitInCycles)
+            : UpperLimit(limitInCycles == 0 ? 0 : GetCycleCountFast() + limitInCycles) 
         {
         }
 
@@ -73,7 +73,7 @@ namespace NActors {
         }
 
         bool CheckExceeded() {
-            return UpperLimit != 0 && GetCycleCountFast() > UpperLimit;
+            return UpperLimit != 0 && GetCycleCountFast() > UpperLimit; 
         }
 
         const ui64 UpperLimit;
@@ -125,7 +125,7 @@ namespace NActors {
         std::unordered_map<ui16, TRope> ChannelMap;
 
         TReceiveContext() {
-            GetTimeFast(&StartTime);
+            GetTimeFast(&StartTime); 
         }
 
         // returns false if sessions needs to be terminated and packet not to be processed
@@ -378,7 +378,7 @@ namespace NActors {
         void SetNewConnection(TEvHandshakeDone::TPtr& ev);
 
         TEvRam* RamInQueue = nullptr;
-        ui64 RamStartedCycles = 0;
+        ui64 RamStartedCycles = 0; 
         void HandleRam(TEvRam::TPtr& ev);
         void GenerateTraffic();
 
@@ -389,7 +389,7 @@ namespace NActors {
         void Handle(TEvPollerRegisterResult::TPtr ev);
         void WriteData();
 
-        ui64 MakePacket(bool data, TMaybe<ui64> pingMask = {});
+        ui64 MakePacket(bool data, TMaybe<ui64> pingMask = {}); 
         void FillSendingBuffer(TTcpPacketOutTask& packet, ui64 serial);
         bool DropConfirmed(ui64 confirm);
         void ShutdownSocket(TDisconnectReason reason);
@@ -452,21 +452,21 @@ namespace NActors {
         TSendQueue SendQueue;
         TSendQueue SendQueueCache;
         TSendQueue::iterator SendQueuePos;
-        ui64 WriteBlockedCycles = 0; // start of current block period
-        TDuration WriteBlockedTotal; // total incremental duration that session has been blocked
+        ui64 WriteBlockedCycles = 0; // start of current block period 
+        TDuration WriteBlockedTotal; // total incremental duration that session has been blocked 
         ui64 BytesUnwritten = 0;
 
         void TrimSendQueueCache();
 
-        TDuration GetWriteBlockedTotal() const {
+        TDuration GetWriteBlockedTotal() const { 
             if (ReceiveContext->WriteBlockedByFullSendBuffer) {
-                double blockedUs = NHPTimer::GetSeconds(GetCycleCountFast() - WriteBlockedCycles) * 1000000.0;
-                return WriteBlockedTotal + TDuration::MicroSeconds(blockedUs); // append current blocking period if any
-            } else {
-                return WriteBlockedTotal;
-            }
-        }
-
+                double blockedUs = NHPTimer::GetSeconds(GetCycleCountFast() - WriteBlockedCycles) * 1000000.0; 
+                return WriteBlockedTotal + TDuration::MicroSeconds(blockedUs); // append current blocking period if any 
+            } else { 
+                return WriteBlockedTotal; 
+            } 
+        } 
+ 
         ui64 OutputCounter;
         ui64 LastSentSerial = 0;
 
diff --git a/library/cpp/actors/interconnect/packet.cpp b/library/cpp/actors/interconnect/packet.cpp
index e2c289ed59..55c9679414 100644
--- a/library/cpp/actors/interconnect/packet.cpp
+++ b/library/cpp/actors/interconnect/packet.cpp
@@ -1,11 +1,11 @@
 #include "packet.h"
 
-#include <library/cpp/actors/core/probes.h>
-
+#include <library/cpp/actors/core/probes.h> 
+ 
 #include <util/system/datetime.h>
 
-LWTRACE_USING(ACTORLIB_PROVIDER);
-
+LWTRACE_USING(ACTORLIB_PROVIDER); 
+ 
 ui32 TEventHolder::Fill(IEventHandle& ev) {
     Serial = 0;
     Descr.Type = ev.Type;
@@ -27,6 +27,6 @@ ui32 TEventHolder::Fill(IEventHandle& ev) {
     } else {
         EventSerializedSize = 0;
     }
-
+ 
     return EventSerializedSize;
 }
diff --git a/library/cpp/actors/interconnect/packet.h b/library/cpp/actors/interconnect/packet.h
index 4ba50a2b5f..f062633b0b 100644
--- a/library/cpp/actors/interconnect/packet.h
+++ b/library/cpp/actors/interconnect/packet.h
@@ -8,7 +8,7 @@
 #include <library/cpp/actors/util/rope.h>
 #include <library/cpp/actors/prof/tag.h>
 #include <library/cpp/digest/crc32c/crc32c.h>
-#include <library/cpp/lwtrace/shuttle.h>
+#include <library/cpp/lwtrace/shuttle.h> 
 #include <util/generic/string.h>
 #include <util/generic/list.h>
 
@@ -108,7 +108,7 @@ struct TEventHolder : TNonCopyable {
     ui64 Serial;
     ui32 EventSerializedSize;
     ui32 EventActuallySerialized;
-    mutable NLWTrace::TOrbit Orbit;
+    mutable NLWTrace::TOrbit Orbit; 
 
     ui32 Fill(IEventHandle& ev);
 
@@ -136,7 +136,7 @@ struct TEventHolder : TNonCopyable {
     void Clear() {
         Event.Reset();
         Buffer.Reset();
-        Orbit.Reset();
+        Orbit.Reset(); 
     }
 };
 
@@ -154,7 +154,7 @@ struct TTcpPacketOutTask : TNonCopyable {
     bool TriedWriting;
     char *FreeArea;
     char *End;
-    mutable NLWTrace::TOrbit Orbit;
+    mutable NLWTrace::TOrbit Orbit; 
 
 public:
     TTcpPacketOutTask(const TSessionParams& params)
@@ -189,7 +189,7 @@ public:
         TriedWriting = false;
         FreeArea = Params.UseModernFrame ? Packet.v2.Data : Packet.v1.Data;
         End = FreeArea + TTcpPacketBuf::PacketDataLen;
-        Orbit.Reset();
+        Orbit.Reset(); 
     }
 
     bool IsEmpty() const {
diff --git a/library/cpp/actors/interconnect/poller_actor.cpp b/library/cpp/actors/interconnect/poller_actor.cpp
index e75cbcaef4..ef363b208e 100644
--- a/library/cpp/actors/interconnect/poller_actor.cpp
+++ b/library/cpp/actors/interconnect/poller_actor.cpp
@@ -5,7 +5,7 @@
 #include <library/cpp/actors/core/actorsystem.h>
 #include <library/cpp/actors/core/hfunc.h>
 #include <library/cpp/actors/core/log.h>
-#include <library/cpp/actors/core/probes.h>
+#include <library/cpp/actors/core/probes.h> 
 #include <library/cpp/actors/protos/services_common.pb.h>
 #include <library/cpp/actors/util/funnel_queue.h>
 
@@ -17,9 +17,9 @@
 #include <variant>
 
 namespace NActors {
-
-    LWTRACE_USING(ACTORLIB_PROVIDER);
-
+ 
+    LWTRACE_USING(ACTORLIB_PROVIDER); 
+ 
     namespace {
         int LastSocketError() {
 #if defined(_win_)
diff --git a/library/cpp/actors/interconnect/profiler.h b/library/cpp/actors/interconnect/profiler.h
index 77a59e3179..d9192e1559 100644
--- a/library/cpp/actors/interconnect/profiler.h
+++ b/library/cpp/actors/interconnect/profiler.h
@@ -1,7 +1,7 @@
 #pragma once
 
-#include <library/cpp/actors/util/datetime.h>
-
+#include <library/cpp/actors/util/datetime.h> 
+ 
 namespace NActors {
 
     class TProfiled {
@@ -14,7 +14,7 @@ namespace NActors {
             EType Type; // entry kind
             int Line;
             const char *Marker; // name of the profiled function/part
-            ui64 Timestamp; // cycles
+            ui64 Timestamp; // cycles 
         };
 
         bool Enable = false;
@@ -44,7 +44,7 @@ namespace NActors {
                         type,
                         line,
                         marker,
-                        GetCycleCountFast()
+                        GetCycleCountFast() 
                     });
                 }
             }
diff --git a/library/cpp/actors/memory_log/memlog.cpp b/library/cpp/actors/memory_log/memlog.cpp
index 8e6b46727d..a7ffa24623 100644
--- a/library/cpp/actors/memory_log/memlog.cpp
+++ b/library/cpp/actors/memory_log/memlog.cpp
@@ -1,7 +1,7 @@
 #include "memlog.h"
 
-#include <library/cpp/actors/util/datetime.h>
-
+#include <library/cpp/actors/util/datetime.h> 
+ 
 #include <util/system/info.h>
 #include <util/system/atomic.h>
 #include <util/system/align.h>
@@ -270,7 +270,7 @@ bool MemLogWrite(const char* begin, size_t msgSize, bool addLF) noexcept {
     Y_VERIFY(AlignDown(&prolog, TMemoryLog::MemcpyAlignment) == &prolog);
 
     int snprintfResult = snprintf(prolog, prologSize + 1,
-                                  "TS %020" PRIu64 " TI %020" PRIu64 " ", GetCycleCountFast(), threadId);
+                                  "TS %020" PRIu64 " TI %020" PRIu64 " ", GetCycleCountFast(), threadId); 
 
     if (snprintfResult < 0) {
         return false;
@@ -341,7 +341,7 @@ bool MemLogVPrintF(const char* format, va_list params) noexcept {
     int prologSize = snprintf(buf,
                               TMemoryLog::MAX_MESSAGE_SIZE - 2,
                               "TS %020" PRIu64 " TI %020" PRIu64 " ",
-                              GetCycleCountFast(),
+                              GetCycleCountFast(), 
                               threadId);
 
     if (Y_UNLIKELY(prologSize < 0)) {
diff --git a/library/cpp/actors/testlib/test_runtime.cpp b/library/cpp/actors/testlib/test_runtime.cpp
index 6fa25b9965..008e25b416 100644
--- a/library/cpp/actors/testlib/test_runtime.cpp
+++ b/library/cpp/actors/testlib/test_runtime.cpp
@@ -6,7 +6,7 @@
 #include <library/cpp/actors/core/executor_pool_io.h>
 #include <library/cpp/actors/core/log.h>
 #include <library/cpp/actors/core/scheduler_basic.h>
-#include <library/cpp/actors/util/datetime.h>
+#include <library/cpp/actors/util/datetime.h> 
 #include <library/cpp/actors/protos/services_common.pb.h>
 #include <library/cpp/random_provider/random_provider.h>
 #include <library/cpp/actors/interconnect/interconnect.h>
@@ -248,7 +248,7 @@ namespace NActors {
             Node->ActorSystemMonotonic = currentMonotonic;
         }
 
-        void PrepareSchedules(NSchedulerQueue::TReader **readers, ui32 scheduleReadersCount) override {
+        void PrepareSchedules(NSchedulerQueue::TReader **readers, ui32 scheduleReadersCount) override { 
             Y_UNUSED(readers);
             Y_UNUSED(scheduleReadersCount);
         }
@@ -282,33 +282,33 @@ namespace NActors {
         }
 
         // for threads
-        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) override {
-            Y_UNUSED(wctx);
+        ui32 GetReadyActivation(TWorkerContext& wctx, ui64 revolvingCounter) override { 
+            Y_UNUSED(wctx); 
             Y_UNUSED(revolvingCounter);
             Y_FAIL();
         }
 
-        void ReclaimMailbox(TMailboxType::EType mailboxType, ui32 hint, TWorkerId workerId, ui64 revolvingCounter) override {
-            Y_UNUSED(workerId);
+        void ReclaimMailbox(TMailboxType::EType mailboxType, ui32 hint, TWorkerId workerId, ui64 revolvingCounter) override { 
+            Y_UNUSED(workerId); 
             Node->MailboxTable->ReclaimMailbox(mailboxType, hint, revolvingCounter);
         }
 
-        void Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie *cookie, TWorkerId workerId) override {
-            DoSchedule(deadline, ev, cookie, workerId);
+        void Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie *cookie, TWorkerId workerId) override { 
+            DoSchedule(deadline, ev, cookie, workerId); 
         }
 
-        void Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie *cookie, TWorkerId workerId) override {
-            DoSchedule(TInstant::FromValue(deadline.GetValue()), ev, cookie, workerId);
+        void Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie *cookie, TWorkerId workerId) override { 
+            DoSchedule(TInstant::FromValue(deadline.GetValue()), ev, cookie, workerId); 
         }
 
-        void Schedule(TDuration delay, TAutoPtr<IEventHandle> ev, ISchedulerCookie *cookie, TWorkerId workerId) override {
+        void Schedule(TDuration delay, TAutoPtr<IEventHandle> ev, ISchedulerCookie *cookie, TWorkerId workerId) override { 
             TInstant deadline = Runtime->GetTimeProvider()->Now() + delay;
-            DoSchedule(deadline, ev, cookie, workerId);
+            DoSchedule(deadline, ev, cookie, workerId); 
         }
 
-        void DoSchedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie *cookie, TWorkerId workerId) {
-            Y_UNUSED(workerId);
-
+        void DoSchedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie *cookie, TWorkerId workerId) { 
+            Y_UNUSED(workerId); 
+ 
             TGuard<TMutex> guard(Runtime->Mutex);
             bool verbose = (Runtime->CurrentDispatchContext ? !Runtime->CurrentDispatchContext->Options->Quiet : true) && VERBOSE;
             if (Runtime->BlockedOutput.find(ev->Sender) != Runtime->BlockedOutput.end()) {
@@ -372,7 +372,7 @@ namespace NActors {
                         TMailboxHeader* mailbox = node->MailboxTable->Get(mailboxHint);
                         IActor* recipientActor = mailbox->FindActor(ev->GetRecipientRewrite().LocalId());
                         if (recipientActor) {
-                            TActorContext ctx(*mailbox, *node->ExecutorThread, GetCycleCountFast(), ev->GetRecipientRewrite());
+                            TActorContext ctx(*mailbox, *node->ExecutorThread, GetCycleCountFast(), ev->GetRecipientRewrite()); 
                             TActivationContext *prevTlsActivationContext = TlsActivationContext;
                             TlsActivationContext = &ctx;
                             recipientActor->Receive(ev, ctx);
@@ -412,7 +412,7 @@ namespace NActors {
         }
 
         // lifecycle stuff
-        void Prepare(TActorSystem *actorSystem, NSchedulerQueue::TReader **scheduleReaders, ui32 *scheduleSz) override {
+        void Prepare(TActorSystem *actorSystem, NSchedulerQueue::TReader **scheduleReaders, ui32 *scheduleSz) override { 
             Y_UNUSED(actorSystem);
             Y_UNUSED(scheduleReaders);
             Y_UNUSED(scheduleSz);
@@ -507,7 +507,7 @@ namespace NActors {
             node->SchedulerPool.Reset(CreateExecutorPoolStub(this, nodeIndex, node, 0));
             node->MailboxTable.Reset(new TMailboxTable());
             node->ActorSystem = MakeActorSystem(nodeIndex, node);
-            node->ExecutorThread.Reset(new TExecutorThread(0, 0, node->ActorSystem.Get(), node->SchedulerPool.Get(), node->MailboxTable.Get(), "TestExecutor"));
+            node->ExecutorThread.Reset(new TExecutorThread(0, 0, node->ActorSystem.Get(), node->SchedulerPool.Get(), node->MailboxTable.Get(), "TestExecutor")); 
         } else {
             node->ActorSystem = MakeActorSystem(nodeIndex, node);
         }
@@ -904,19 +904,19 @@ namespace NActors {
 
         switch (mailboxType) {
         case TMailboxType::Simple:
-            UnlockFromExecution((TMailboxTable::TSimpleMailbox *)mailbox, node->ExecutorPools[0], false, hint, MaxWorkers, ++revolvingCounter);
+            UnlockFromExecution((TMailboxTable::TSimpleMailbox *)mailbox, node->ExecutorPools[0], false, hint, MaxWorkers, ++revolvingCounter); 
             break;
         case TMailboxType::Revolving:
-            UnlockFromExecution((TMailboxTable::TRevolvingMailbox *)mailbox, node->ExecutorPools[0], false, hint, MaxWorkers, ++revolvingCounter);
+            UnlockFromExecution((TMailboxTable::TRevolvingMailbox *)mailbox, node->ExecutorPools[0], false, hint, MaxWorkers, ++revolvingCounter); 
             break;
         case TMailboxType::HTSwap:
-            UnlockFromExecution((TMailboxTable::THTSwapMailbox *)mailbox, node->ExecutorPools[0], false, hint, MaxWorkers, ++revolvingCounter);
+            UnlockFromExecution((TMailboxTable::THTSwapMailbox *)mailbox, node->ExecutorPools[0], false, hint, MaxWorkers, ++revolvingCounter); 
             break;
         case TMailboxType::ReadAsFilled:
-            UnlockFromExecution((TMailboxTable::TReadAsFilledMailbox *)mailbox, node->ExecutorPools[0], false, hint, MaxWorkers, ++revolvingCounter);
+            UnlockFromExecution((TMailboxTable::TReadAsFilledMailbox *)mailbox, node->ExecutorPools[0], false, hint, MaxWorkers, ++revolvingCounter); 
             break;
         case TMailboxType::TinyReadAsFilled:
-            UnlockFromExecution((TMailboxTable::TTinyReadAsFilledMailbox *)mailbox, node->ExecutorPools[0], false, hint, MaxWorkers, ++revolvingCounter);
+            UnlockFromExecution((TMailboxTable::TTinyReadAsFilledMailbox *)mailbox, node->ExecutorPools[0], false, hint, MaxWorkers, ++revolvingCounter); 
             break;
         default:
             Y_FAIL("Unsupported mailbox type");
@@ -1029,13 +1029,13 @@ namespace NActors {
     }
 
     bool TTestActorRuntimeBase::DispatchEvents(const TDispatchOptions& options) {
-        return DispatchEvents(options, TInstant::Max());
-    }
-
+        return DispatchEvents(options, TInstant::Max()); 
+    } 
+ 
     bool TTestActorRuntimeBase::DispatchEvents(const TDispatchOptions& options, TDuration simTimeout) {
-        return DispatchEvents(options, TInstant::MicroSeconds(CurrentTimestamp) + simTimeout);
-    }
-
+        return DispatchEvents(options, TInstant::MicroSeconds(CurrentTimestamp) + simTimeout); 
+    } 
+ 
     bool TTestActorRuntimeBase::DispatchEvents(const TDispatchOptions& options, TInstant simDeadline) {
         TGuard<TMutex> guard(Mutex);
         return DispatchEventsInternal(options, simDeadline);
@@ -1251,7 +1251,7 @@ namespace NActors {
             }
 
             if (!localContext.FoundNonEmptyMailboxes.empty())
-                return true;
+                return true; 
 
             if (options.CustomFinalCondition && options.CustomFinalCondition())
                 return true;
@@ -1266,15 +1266,15 @@ namespace NActors {
                             Cerr << "Dispatch complete with non-empty queue at " << TInstant::MicroSeconds(CurrentTimestamp) << "\n";
                         }
 
-                        return true;
+                        return true; 
                     }
                 }
             }
 
-            if (TInstant::MicroSeconds(CurrentTimestamp) > simDeadline) {
-                return false;
-            }
-
+            if (TInstant::MicroSeconds(CurrentTimestamp) > simDeadline) { 
+                return false; 
+            } 
+ 
             if (dispatchTime >= deadline) {
                 if (verbose) {
                     Cerr << "Reach deadline at " << TInstant::MicroSeconds(CurrentTimestamp) << "\n";
@@ -1333,7 +1333,7 @@ namespace NActors {
                         Cerr << "Process selected events at " << TInstant::MicroSeconds(CurrentTimestamp) << "\n";
                     }
 
-                    deadline = dispatchTime +  DispatchTimeout;
+                    deadline = dispatchTime +  DispatchTimeout; 
                     continue;
                 }
 
@@ -1351,7 +1351,7 @@ namespace NActors {
             dispatchTime += waitDelay;
             MailboxesHasEvents.WaitT(Mutex, waitDelay);
         }
-        return false;
+        return false; 
     }
 
     void TTestActorRuntimeBase::HandleNonEmptyMailboxesForEachContext(TEventMailboxId mboxId) {
@@ -1452,8 +1452,8 @@ namespace NActors {
             ++dispatchCount;
             {
                 if (!DispatchEventsInternal(TDispatchOptions(), deadline)) {
-                    return; // Timed out; event was not found
-                }
+                    return; // Timed out; event was not found 
+                } 
             }
 
             Y_VERIFY(dispatchCount < 1000, "Hard limit to prevent endless loop");
@@ -1572,7 +1572,7 @@ namespace NActors {
             // Save actorId by value in order to prevent ctx from being invalidated during another Send call.
             TActorId actorId = ev->GetRecipientRewrite();
             node->ActorToActorId[recipientActor] = ev->GetRecipientRewrite();
-            TActorContext ctx(*mailbox, *node->ExecutorThread, GetCycleCountFast(), actorId);
+            TActorContext ctx(*mailbox, *node->ExecutorThread, GetCycleCountFast(), actorId); 
             TActivationContext *prevTlsActivationContext = TlsActivationContext;
             TlsActivationContext = &ctx;
             CurrentRecipient = actorId;
diff --git a/library/cpp/actors/testlib/test_runtime.h b/library/cpp/actors/testlib/test_runtime.h
index 26e3b45c98..863e2cdb49 100644
--- a/library/cpp/actors/testlib/test_runtime.h
+++ b/library/cpp/actors/testlib/test_runtime.h
@@ -253,9 +253,9 @@ namespace NActors {
         void PushEventsFront(TEventsList& events);
         void PushMailboxEventsFront(ui32 hint, ui32 nodeId, TEventsList& events);
         // doesn't dispatch events for edge actors
-        bool DispatchEvents(const TDispatchOptions& options = TDispatchOptions());
-        bool DispatchEvents(const TDispatchOptions& options, TDuration simTimeout);
-        bool DispatchEvents(const TDispatchOptions& options, TInstant simDeadline);
+        bool DispatchEvents(const TDispatchOptions& options = TDispatchOptions()); 
+        bool DispatchEvents(const TDispatchOptions& options, TDuration simTimeout); 
+        bool DispatchEvents(const TDispatchOptions& options, TInstant simDeadline); 
         void Send(IEventHandle* ev, ui32 senderNodeIndex = 0, bool viaActorSystem = false);
         void Schedule(IEventHandle* ev, const TDuration& duration, ui32 nodeIndex = 0);
         void ClearCounters();
@@ -288,7 +288,7 @@ namespace NActors {
         TActorSystem* GetAnyNodeActorSystem();
         TActorSystem* GetActorSystem(ui32 nodeId);
         template <typename TEvent>
-        TEvent* GrabEdgeEventIf(TAutoPtr<IEventHandle>& handle, std::function<bool(const TEvent&)> predicate, TDuration simTimeout = TDuration::Max()) {
+        TEvent* GrabEdgeEventIf(TAutoPtr<IEventHandle>& handle, std::function<bool(const TEvent&)> predicate, TDuration simTimeout = TDuration::Max()) { 
             handle.Destroy();
             const ui32 eventType = TEvent::EventType;
             WaitForEdgeEvents([&](TTestActorRuntimeBase& runtime, TAutoPtr<IEventHandle>& event) {
@@ -305,14 +305,14 @@ namespace NActors {
                 return false;
             }, {}, simTimeout);
 
-            if (simTimeout == TDuration::Max())
+            if (simTimeout == TDuration::Max()) 
                 Y_VERIFY(handle);
-
-            if (handle) {
-                return reinterpret_cast<TAutoPtr<TEventHandle<TEvent>>&>(handle)->Get();
-            } else {
-                return nullptr;
-            }
+ 
+            if (handle) { 
+                return reinterpret_cast<TAutoPtr<TEventHandle<TEvent>>&>(handle)->Get(); 
+            } else { 
+                return nullptr; 
+            } 
         }
 
         template<class TEvent>
@@ -354,9 +354,9 @@ namespace NActors {
         }
 
         template <typename TEvent>
-        TEvent* GrabEdgeEvent(TAutoPtr<IEventHandle>& handle, TDuration simTimeout = TDuration::Max()) {
+        TEvent* GrabEdgeEvent(TAutoPtr<IEventHandle>& handle, TDuration simTimeout = TDuration::Max()) { 
             std::function<bool(const TEvent&)> truth = [](const TEvent&) { return true; };
-            return GrabEdgeEventIf(handle, truth, simTimeout);
+            return GrabEdgeEventIf(handle, truth, simTimeout); 
         }
 
         template <typename TEvent>
@@ -400,9 +400,9 @@ namespace NActors {
         }
 
         template <typename TEvent>
-        TEvent* GrabEdgeEventRethrow(TAutoPtr<IEventHandle>& handle, TDuration simTimeout = TDuration::Max()) {
+        TEvent* GrabEdgeEventRethrow(TAutoPtr<IEventHandle>& handle, TDuration simTimeout = TDuration::Max()) { 
             try {
-                return GrabEdgeEvent<TEvent>(handle, simTimeout);
+                return GrabEdgeEvent<TEvent>(handle, simTimeout); 
             } catch (...) {
                 ythrow TWithBackTrace<yexception>() << "Exception occured while waiting for " << TypeName<TEvent>() << ": " << CurrentExceptionMessage();
             }
diff --git a/library/cpp/actors/util/affinity.cpp b/library/cpp/actors/util/affinity.cpp
index cc1b6e70ec..69f9048ec1 100644
--- a/library/cpp/actors/util/affinity.cpp
+++ b/library/cpp/actors/util/affinity.cpp
@@ -16,17 +16,17 @@ public:
 #endif
     }
 
-    explicit TImpl(const ui8* cpus, ui32 size) {
+    explicit TImpl(const ui8* cpus, ui32 size) { 
 #ifdef _linux_
         CPU_ZERO(&Mask);
-        for (ui32 i = 0; i != size; ++i) {
-            if (cpus[i]) {
-                CPU_SET(i, &Mask);
-            }
-        }
+        for (ui32 i = 0; i != size; ++i) { 
+            if (cpus[i]) { 
+                CPU_SET(i, &Mask); 
+            } 
+        } 
 #else
-        Y_UNUSED(cpus);
-        Y_UNUSED(size);
+        Y_UNUSED(cpus); 
+        Y_UNUSED(size); 
 #endif
     }
 
@@ -36,18 +36,18 @@ public:
         Y_VERIFY_DEBUG(ar == 0);
 #endif
     }
-
-    operator TCpuMask() const {
-        TCpuMask result;
-#ifdef _linux_
-        for (ui32 i = 0; i != CPU_SETSIZE; ++i) {
-            result.Cpus.emplace_back(CPU_ISSET(i, &Mask));
-        }
-        result.RemoveTrailingZeros();
-#endif
-        return result;
-    }
-
+ 
+    operator TCpuMask() const { 
+        TCpuMask result; 
+#ifdef _linux_ 
+        for (ui32 i = 0; i != CPU_SETSIZE; ++i) { 
+            result.Cpus.emplace_back(CPU_ISSET(i, &Mask)); 
+        } 
+        result.RemoveTrailingZeros(); 
+#endif 
+        return result; 
+    } 
+ 
 };
 
 TAffinity::TAffinity() {
@@ -57,37 +57,37 @@ TAffinity::~TAffinity() {
 }
 
 TAffinity::TAffinity(const ui8* x, ui32 sz) {
-    if (x && sz) {
-        Impl.Reset(new TImpl(x, sz));
-    }
-}
-
-TAffinity::TAffinity(const TCpuMask& mask) {
-    if (!mask.IsEmpty()) {
-        static_assert(sizeof(ui8) == sizeof(mask.Cpus[0]));
-        const ui8* x = reinterpret_cast<const ui8*>(&mask.Cpus[0]);
-        const ui32 sz = mask.Size();
+    if (x && sz) { 
         Impl.Reset(new TImpl(x, sz));
-    }
+    } 
 }
 
+TAffinity::TAffinity(const TCpuMask& mask) { 
+    if (!mask.IsEmpty()) { 
+        static_assert(sizeof(ui8) == sizeof(mask.Cpus[0])); 
+        const ui8* x = reinterpret_cast<const ui8*>(&mask.Cpus[0]); 
+        const ui32 sz = mask.Size(); 
+        Impl.Reset(new TImpl(x, sz)); 
+    } 
+} 
+ 
 void TAffinity::Current() {
     Impl.Reset(new TImpl());
 }
 
 void TAffinity::Set() const {
-    if (!!Impl) {
+    if (!!Impl) { 
         Impl->Set();
-    }
+    } 
 }
 
 bool TAffinity::Empty() const {
-    return !Impl;
-}
-
-TAffinity::operator TCpuMask() const {
-    if (!!Impl) {
-        return *Impl;
-    }
-    return TCpuMask();
+    return !Impl; 
 }
+ 
+TAffinity::operator TCpuMask() const { 
+    if (!!Impl) { 
+        return *Impl; 
+    } 
+    return TCpuMask(); 
+} 
diff --git a/library/cpp/actors/util/affinity.h b/library/cpp/actors/util/affinity.h
index ae106ed180..c807d03b76 100644
--- a/library/cpp/actors/util/affinity.h
+++ b/library/cpp/actors/util/affinity.h
@@ -1,27 +1,27 @@
 #pragma once
 
 #include "defs.h"
-#include "cpumask.h"
+#include "cpumask.h" 
 
-// Platform-specific class to set or get thread affinity
+// Platform-specific class to set or get thread affinity 
 class TAffinity: public TThrRefBase, TNonCopyable {
     class TImpl;
     THolder<TImpl> Impl;
 
 public:
     TAffinity();
-    TAffinity(const ui8* cpus, ui32 size);
-    explicit TAffinity(const TCpuMask& mask);
+    TAffinity(const ui8* cpus, ui32 size); 
+    explicit TAffinity(const TCpuMask& mask); 
     ~TAffinity();
 
     void Current();
     void Set() const;
     bool Empty() const;
-
-    operator TCpuMask() const;
+ 
+    operator TCpuMask() const; 
 };
 
-// Scoped affinity setter
+// Scoped affinity setter 
 class TAffinityGuard : TNonCopyable {
     bool Stacked;
     TAffinity OldAffinity;
diff --git a/library/cpp/actors/util/cpumask.h b/library/cpp/actors/util/cpumask.h
index 29741aa1d6..1f72ae3895 100644
--- a/library/cpp/actors/util/cpumask.h
+++ b/library/cpp/actors/util/cpumask.h
@@ -1,133 +1,133 @@
-#pragma once
-
-#include "defs.h"
-
-#include <library/cpp/containers/stack_vector/stack_vec.h>
-
-#include <util/string/split.h>
-#include <util/generic/yexception.h>
-
-using TCpuId = ui32;
-
-// Simple data structure to operate with set of cpus
-struct TCpuMask {
-    TStackVec<bool, 1024> Cpus;
-
-    // Creates empty mask
-    TCpuMask() {}
-
-    // Creates mask with single cpu set
-    explicit TCpuMask(TCpuId cpuId) {
-        Set(cpuId);
-    }
-
-    // Initialize mask from raw boolean array
-    template <class T>
-    TCpuMask(const T* cpus, TCpuId size) {
-        Cpus.reserve(size);
-        for (TCpuId i = 0; i != size; ++i) {
-            Cpus.emplace_back(bool(cpus[i]));
-        }
-    }
-
-    // Parse a numerical list of processors. The numbers are separated by commas and may include ranges. For example: 0,5,7,9-11
-    explicit TCpuMask(const TString& cpuList) {
-        try {
-            for (TStringBuf s : StringSplitter(cpuList).Split(',')) {
-                TCpuId l, r;
-                if (s.find('-') != TString::npos) {
-                    StringSplitter(s).Split('-').CollectInto(&l, &r);
-                } else {
-                    l = r = FromString<TCpuId>(s);
-                }
-                if (r >= Cpus.size()) {
-                    Cpus.resize(r + 1, false);
-                }
-                for (TCpuId cpu = l; cpu <= r; cpu++) {
-                    Cpus[cpu] = true;
-                }
-            }
-        } catch (...) {
-            ythrow TWithBackTrace<yexception>() << "Exception occured while parsing cpu list '" << cpuList << "': " << CurrentExceptionMessage();
-        }
-    }
-
-    // Returns size of underlying vector
-    TCpuId Size() const {
-        return Cpus.size();
-    }
-
-    // Returns number of set bits in mask
-    TCpuId CpuCount() const {
-        TCpuId result = 0;
-        for (bool value : Cpus) {
-            result += value;
-        }
-        return result;
-    }
-
-    bool IsEmpty() const {
-        for (bool value : Cpus) {
-            if (value) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    bool IsSet(TCpuId cpu) const {
-        return cpu < Cpus.size() && Cpus[cpu];
-    }
-
-    void Set(TCpuId cpu) {
-        if (cpu >= Cpus.size()) {
-            Cpus.resize(cpu + 1, false);
-        }
-        Cpus[cpu] = true;
-    }
-
-    void Reset(TCpuId cpu) {
-        if (cpu < Cpus.size()) {
-            Cpus[cpu] = false;
-        }
-    }
-
-    void RemoveTrailingZeros() {
-        while (!Cpus.empty() && !Cpus.back()) {
-            Cpus.pop_back();
-        }
-    }
-
-    explicit operator bool() const {
-        return !IsEmpty();
-    }
-
-    TCpuMask operator &(const TCpuMask& rhs) const {
-        TCpuMask result;
-        TCpuId size = Max(Size(), rhs.Size());
-        result.Cpus.reserve(size);
-        for (TCpuId cpu = 0; cpu < size; cpu++) {
-            result.Cpus.emplace_back(IsSet(cpu) && rhs.IsSet(cpu));
-        }
-        return result;
-    }
-
-    TCpuMask operator |(const TCpuMask& rhs) const {
-        TCpuMask result;
-        TCpuId size = Max(Size(), rhs.Size());
-        result.Cpus.reserve(size);
-        for (TCpuId cpu = 0; cpu < size; cpu++) {
-            result.Cpus.emplace_back(IsSet(cpu) || rhs.IsSet(cpu));
-        }
-        return result;
-    }
-
-    TCpuMask operator -(const TCpuMask& rhs) const {
-        TCpuMask result;
-        result.Cpus.reserve(Size());
-        for (TCpuId cpu = 0; cpu < Size(); cpu++) {
-            result.Cpus.emplace_back(IsSet(cpu) && !rhs.IsSet(cpu));
-        }
-        return result;
-    }
-};
+#pragma once 
+ 
+#include "defs.h" 
+ 
+#include <library/cpp/containers/stack_vector/stack_vec.h> 
+ 
+#include <util/string/split.h> 
+#include <util/generic/yexception.h> 
+ 
+using TCpuId = ui32; 
+ 
+// Simple data structure to operate with set of cpus 
+struct TCpuMask { 
+    TStackVec<bool, 1024> Cpus; 
+ 
+    // Creates empty mask 
+    TCpuMask() {} 
+ 
+    // Creates mask with single cpu set 
+    explicit TCpuMask(TCpuId cpuId) { 
+        Set(cpuId); 
+    } 
+ 
+    // Initialize mask from raw boolean array 
+    template <class T> 
+    TCpuMask(const T* cpus, TCpuId size) { 
+        Cpus.reserve(size); 
+        for (TCpuId i = 0; i != size; ++i) { 
+            Cpus.emplace_back(bool(cpus[i])); 
+        } 
+    } 
+ 
+    // Parse a numerical list of processors. The numbers are separated by commas and may include ranges. For example: 0,5,7,9-11 
+    explicit TCpuMask(const TString& cpuList) { 
+        try { 
+            for (TStringBuf s : StringSplitter(cpuList).Split(',')) { 
+                TCpuId l, r; 
+                if (s.find('-') != TString::npos) { 
+                    StringSplitter(s).Split('-').CollectInto(&l, &r); 
+                } else { 
+                    l = r = FromString<TCpuId>(s); 
+                } 
+                if (r >= Cpus.size()) { 
+                    Cpus.resize(r + 1, false); 
+                } 
+                for (TCpuId cpu = l; cpu <= r; cpu++) { 
+                    Cpus[cpu] = true; 
+                } 
+            } 
+        } catch (...) { 
+            ythrow TWithBackTrace<yexception>() << "Exception occured while parsing cpu list '" << cpuList << "': " << CurrentExceptionMessage(); 
+        } 
+    } 
+ 
+    // Returns size of underlying vector 
+    TCpuId Size() const { 
+        return Cpus.size(); 
+    } 
+ 
+    // Returns number of set bits in mask 
+    TCpuId CpuCount() const { 
+        TCpuId result = 0; 
+        for (bool value : Cpus) { 
+            result += value; 
+        } 
+        return result; 
+    } 
+ 
+    bool IsEmpty() const { 
+        for (bool value : Cpus) { 
+            if (value) { 
+                return false; 
+            } 
+        } 
+        return true; 
+    } 
+ 
+    bool IsSet(TCpuId cpu) const { 
+        return cpu < Cpus.size() && Cpus[cpu]; 
+    } 
+ 
+    void Set(TCpuId cpu) { 
+        if (cpu >= Cpus.size()) { 
+            Cpus.resize(cpu + 1, false); 
+        } 
+        Cpus[cpu] = true; 
+    } 
+ 
+    void Reset(TCpuId cpu) { 
+        if (cpu < Cpus.size()) { 
+            Cpus[cpu] = false; 
+        } 
+    } 
+ 
+    void RemoveTrailingZeros() { 
+        while (!Cpus.empty() && !Cpus.back()) { 
+            Cpus.pop_back(); 
+        } 
+    } 
+ 
+    explicit operator bool() const { 
+        return !IsEmpty(); 
+    } 
+ 
+    TCpuMask operator &(const TCpuMask& rhs) const { 
+        TCpuMask result; 
+        TCpuId size = Max(Size(), rhs.Size()); 
+        result.Cpus.reserve(size); 
+        for (TCpuId cpu = 0; cpu < size; cpu++) { 
+            result.Cpus.emplace_back(IsSet(cpu) && rhs.IsSet(cpu)); 
+        } 
+        return result; 
+    } 
+ 
+    TCpuMask operator |(const TCpuMask& rhs) const { 
+        TCpuMask result; 
+        TCpuId size = Max(Size(), rhs.Size()); 
+        result.Cpus.reserve(size); 
+        for (TCpuId cpu = 0; cpu < size; cpu++) { 
+            result.Cpus.emplace_back(IsSet(cpu) || rhs.IsSet(cpu)); 
+        } 
+        return result; 
+    } 
+ 
+    TCpuMask operator -(const TCpuMask& rhs) const { 
+        TCpuMask result; 
+        result.Cpus.reserve(Size()); 
+        for (TCpuId cpu = 0; cpu < Size(); cpu++) { 
+            result.Cpus.emplace_back(IsSet(cpu) && !rhs.IsSet(cpu)); 
+        } 
+        return result; 
+    } 
+}; 
diff --git a/library/cpp/actors/util/datetime.h b/library/cpp/actors/util/datetime.h
index cbec5965d6..4bdf57bbde 100644
--- a/library/cpp/actors/util/datetime.h
+++ b/library/cpp/actors/util/datetime.h
@@ -1,82 +1,82 @@
-#pragma once
-
-#include <util/system/defaults.h>
-#include <util/system/hp_timer.h>
-#include <util/system/platform.h>
-
-#if defined(_win_)
-#include <intrin.h>
-#pragma intrinsic(__rdtsc)
-#endif // _win_
-
-#if defined(_darwin_) && !defined(_x86_)
-#include <mach/mach_time.h>
-#endif
-
-// GetCycleCount() from util/system/datetime.h uses rdtscp, which is more accurate than rdtsc,
-// but rdtscp disables processor's out-of-order execution, so it can be slow
-Y_FORCE_INLINE ui64 GetCycleCountFast() {
-#if defined(_MSC_VER)
-    // Generates the rdtsc instruction, which returns the processor time stamp.
-    // The processor time stamp records the number of clock cycles since the last reset.
-    return __rdtsc();
-#elif defined(__clang__) && !defined(_arm64_)
-    return __builtin_readcyclecounter();
-#elif defined(_x86_64_)
-    unsigned hi, lo;
-    __asm__ __volatile__("rdtsc"
-                         : "=a"(lo), "=d"(hi));
-    return ((unsigned long long)lo) | (((unsigned long long)hi) << 32);
-#elif defined(_i386_)
-    ui64 x;
-    __asm__ volatile("rdtsc\n\t"
-                     : "=A"(x));
-    return x;
-#elif defined(_darwin_)
-    return mach_absolute_time();
-#elif defined(_arm32_)
-    return MicroSeconds();
-#elif defined(_arm64_)
-    ui64 x;
-
-    __asm__ __volatile__("isb; mrs %0, cntvct_el0"
-                         : "=r"(x));
-
-    return x;
-#else
-#error "unsupported arch"
-#endif
-}
-
-// NHPTimer::GetTime fast analog
-Y_FORCE_INLINE void GetTimeFast(NHPTimer::STime* pTime) noexcept {
-    *pTime = GetCycleCountFast();
-}
-
-namespace NActors {
-    inline double Ts2Ns(ui64 ts) {
-        return NHPTimer::GetSeconds(ts) * 1e9;
-    }
-
-    inline double Ts2Us(ui64 ts) {
-        return NHPTimer::GetSeconds(ts) * 1e6;
-    }
-
-    inline double Ts2Ms(ui64 ts) {
-        return NHPTimer::GetSeconds(ts) * 1e3;
-    }
-
-    inline ui64 Us2Ts(double us) {
-        return ui64(NHPTimer::GetClockRate() * us / 1e6);
-    }
-
-    struct TTimeTracker {
-        ui64 Ts;
-        TTimeTracker(): Ts(GetCycleCountFast()) {}
-        ui64 Elapsed() {
-            ui64 ts = GetCycleCountFast();
-            std::swap(Ts, ts);
-            return Ts - ts;
-        }
-    };
-}
+#pragma once 
+ 
+#include <util/system/defaults.h> 
+#include <util/system/hp_timer.h> 
+#include <util/system/platform.h> 
+ 
+#if defined(_win_) 
+#include <intrin.h> 
+#pragma intrinsic(__rdtsc) 
+#endif // _win_ 
+ 
+#if defined(_darwin_) && !defined(_x86_) 
+#include <mach/mach_time.h> 
+#endif 
+ 
+// GetCycleCount() from util/system/datetime.h uses rdtscp, which is more accurate than rdtsc, 
+// but rdtscp disables processor's out-of-order execution, so it can be slow 
+Y_FORCE_INLINE ui64 GetCycleCountFast() { 
+#if defined(_MSC_VER) 
+    // Generates the rdtsc instruction, which returns the processor time stamp. 
+    // The processor time stamp records the number of clock cycles since the last reset. 
+    return __rdtsc(); 
+#elif defined(__clang__) && !defined(_arm64_) 
+    return __builtin_readcyclecounter(); 
+#elif defined(_x86_64_) 
+    unsigned hi, lo; 
+    __asm__ __volatile__("rdtsc" 
+                         : "=a"(lo), "=d"(hi)); 
+    return ((unsigned long long)lo) | (((unsigned long long)hi) << 32); 
+#elif defined(_i386_) 
+    ui64 x; 
+    __asm__ volatile("rdtsc\n\t" 
+                     : "=A"(x)); 
+    return x; 
+#elif defined(_darwin_) 
+    return mach_absolute_time(); 
+#elif defined(_arm32_) 
+    return MicroSeconds(); 
+#elif defined(_arm64_) 
+    ui64 x; 
+ 
+    __asm__ __volatile__("isb; mrs %0, cntvct_el0" 
+                         : "=r"(x)); 
+ 
+    return x; 
+#else 
+#error "unsupported arch" 
+#endif 
+} 
+ 
+// NHPTimer::GetTime fast analog 
+Y_FORCE_INLINE void GetTimeFast(NHPTimer::STime* pTime) noexcept { 
+    *pTime = GetCycleCountFast(); 
+} 
+ 
+namespace NActors { 
+    inline double Ts2Ns(ui64 ts) { 
+        return NHPTimer::GetSeconds(ts) * 1e9; 
+    } 
+ 
+    inline double Ts2Us(ui64 ts) { 
+        return NHPTimer::GetSeconds(ts) * 1e6; 
+    } 
+ 
+    inline double Ts2Ms(ui64 ts) { 
+        return NHPTimer::GetSeconds(ts) * 1e3; 
+    } 
+ 
+    inline ui64 Us2Ts(double us) { 
+        return ui64(NHPTimer::GetClockRate() * us / 1e6); 
+    } 
+ 
+    struct TTimeTracker { 
+        ui64 Ts; 
+        TTimeTracker(): Ts(GetCycleCountFast()) {} 
+        ui64 Elapsed() { 
+            ui64 ts = GetCycleCountFast(); 
+            std::swap(Ts, ts); 
+            return Ts - ts; 
+        } 
+    }; 
+} 
diff --git a/library/cpp/actors/util/thread.h b/library/cpp/actors/util/thread.h
index d742c8c585..4cab922647 100644
--- a/library/cpp/actors/util/thread.h
+++ b/library/cpp/actors/util/thread.h
@@ -5,7 +5,7 @@
 #include <util/system/execpath.h>
 #include <util/system/thread.h>
 #include <util/system/thread.h>
-#include <time.h>
+#include <time.h> 
 
 inline void SetCurrentThreadName(const TString& name,
                                  const ui32 maxCharsFromProcessName = 8) {
diff --git a/library/cpp/actors/util/timerfd.h b/library/cpp/actors/util/timerfd.h
index 3189e2a672..a9b35ff9e7 100644
--- a/library/cpp/actors/util/timerfd.h
+++ b/library/cpp/actors/util/timerfd.h
@@ -1,65 +1,65 @@
-#pragma once
-
-#include "datetime.h"
-
-#include <util/generic/noncopyable.h>
-
-#ifdef _linux_
-
-#include <util/system/yassert.h>
-#include <errno.h>
-#include <sys/timerfd.h>
-
-struct TTimerFd: public TNonCopyable {
-    int Fd;
-
-    TTimerFd() {
-        Fd = timerfd_create(CLOCK_MONOTONIC, 0);
-        Y_VERIFY(Fd != -1, "timerfd_create(CLOCK_MONOTONIC, 0) -> -1; errno:%d: %s", int(errno), strerror(errno));
-    }
-
-    ~TTimerFd() {
-        close(Fd);
-    }
-
-    void Set(ui64 ts) {
-        ui64 now = GetCycleCountFast();
-        Arm(now >= ts? 1: NHPTimer::GetSeconds(ts - now) * 1e9);
-    }
-
-    void Reset() {
-        Arm(0); // disarm timer
-    }
-
-    void Wait() {
-        ui64 expirations;
-        ssize_t s = read(Fd, &expirations, sizeof(ui64));
-        Y_UNUSED(s); // Y_VERIFY(s == sizeof(ui64));
-    }
-
-    void Wake() {
-        Arm(1);
-    }
-private:
-    void Arm(ui64 ns) {
-        struct itimerspec spec;
-        spec.it_value.tv_sec = ns / 1'000'000'000;
-        spec.it_value.tv_nsec = ns % 1'000'000'000;
-        spec.it_interval.tv_sec = 0;
-        spec.it_interval.tv_nsec = 0;
-        int ret = timerfd_settime(Fd, 0, &spec, nullptr);
-        Y_VERIFY(ret != -1, "timerfd_settime(%d, 0, %" PRIu64 "ns, 0) -> %d; errno:%d: %s", Fd, ns, ret, int(errno), strerror(errno));
-    }
-};
-
-#else
-
-struct TTimerFd: public TNonCopyable {
-    int Fd = 0;
-    void Set(ui64) {}
-    void Reset() {}
-    void Wait() {}
-    void Wake() {}
-};
-
-#endif
+#pragma once 
+ 
+#include "datetime.h" 
+ 
+#include <util/generic/noncopyable.h> 
+ 
+#ifdef _linux_ 
+ 
+#include <util/system/yassert.h> 
+#include <errno.h> 
+#include <sys/timerfd.h> 
+ 
+struct TTimerFd: public TNonCopyable { 
+    int Fd; 
+ 
+    TTimerFd() { 
+        Fd = timerfd_create(CLOCK_MONOTONIC, 0); 
+        Y_VERIFY(Fd != -1, "timerfd_create(CLOCK_MONOTONIC, 0) -> -1; errno:%d: %s", int(errno), strerror(errno)); 
+    } 
+ 
+    ~TTimerFd() { 
+        close(Fd); 
+    } 
+ 
+    void Set(ui64 ts) { 
+        ui64 now = GetCycleCountFast(); 
+        Arm(now >= ts? 1: NHPTimer::GetSeconds(ts - now) * 1e9); 
+    } 
+ 
+    void Reset() { 
+        Arm(0); // disarm timer 
+    } 
+ 
+    void Wait() { 
+        ui64 expirations; 
+        ssize_t s = read(Fd, &expirations, sizeof(ui64)); 
+        Y_UNUSED(s); // Y_VERIFY(s == sizeof(ui64)); 
+    } 
+ 
+    void Wake() { 
+        Arm(1); 
+    } 
+private: 
+    void Arm(ui64 ns) { 
+        struct itimerspec spec; 
+        spec.it_value.tv_sec = ns / 1'000'000'000; 
+        spec.it_value.tv_nsec = ns % 1'000'000'000; 
+        spec.it_interval.tv_sec = 0; 
+        spec.it_interval.tv_nsec = 0; 
+        int ret = timerfd_settime(Fd, 0, &spec, nullptr); 
+        Y_VERIFY(ret != -1, "timerfd_settime(%d, 0, %" PRIu64 "ns, 0) -> %d; errno:%d: %s", Fd, ns, ret, int(errno), strerror(errno)); 
+    } 
+}; 
+ 
+#else 
+ 
+struct TTimerFd: public TNonCopyable { 
+    int Fd = 0; 
+    void Set(ui64) {} 
+    void Reset() {} 
+    void Wait() {} 
+    void Wake() {} 
+}; 
+ 
+#endif 
diff --git a/library/cpp/actors/util/ya.make b/library/cpp/actors/util/ya.make
index 37488c3962..a8bfd05d5a 100644
--- a/library/cpp/actors/util/ya.make
+++ b/library/cpp/actors/util/ya.make
@@ -8,8 +8,8 @@ OWNER(
 SRCS(
     affinity.cpp
     affinity.h
-    cpumask.h
-    datetime.h
+    cpumask.h 
+    datetime.h 
     defs.h
     funnel_queue.h
     futex.h
@@ -26,7 +26,7 @@ SRCS(
     threadparkpad.cpp
     threadparkpad.h
     ticket_lock.h
-    timerfd.h
+    timerfd.h 
     unordered_cache.h
 )
 
diff --git a/library/cpp/bucket_quoter/bucket_quoter.h b/library/cpp/bucket_quoter/bucket_quoter.h
index 3d92ef8450..74eeee2601 100644
--- a/library/cpp/bucket_quoter/bucket_quoter.h
+++ b/library/cpp/bucket_quoter/bucket_quoter.h
@@ -2,7 +2,7 @@
 
 #include <util/datetime/base.h>
 #include <util/system/mutex.h>
-#include <util/system/hp_timer.h>
+#include <util/system/hp_timer.h> 
 
 /* Token bucket.
  * Makes flow of *inflow* units per second in average, with up to *capacity* bursts.
@@ -39,54 +39,54 @@
 
 */
 
-struct TInstantTimerMs {
-    using TTime = TInstant;
-    static constexpr ui64 Resolution = 1000ull; // milliseconds
-    static TTime Now() {
-        return TInstant::Now();
-    }
-    static ui64 Duration(TTime from, TTime to) {
-        return (to - from).MilliSeconds();
-    }
-};
-
-struct THPTimerUs {
-    using TTime = NHPTimer::STime;
+struct TInstantTimerMs { 
+    using TTime = TInstant; 
+    static constexpr ui64 Resolution = 1000ull; // milliseconds 
+    static TTime Now() { 
+        return TInstant::Now(); 
+    } 
+    static ui64 Duration(TTime from, TTime to) { 
+        return (to - from).MilliSeconds(); 
+    } 
+}; 
+ 
+struct THPTimerUs { 
+    using TTime = NHPTimer::STime; 
     static constexpr ui64 Resolution = 1000000ull; // microseconds
-    static TTime Now() {
-        NHPTimer::STime ret;
-        NHPTimer::GetTime(&ret);
-        return ret;
-    }
-    static ui64 Duration(TTime from, TTime to) {
-        i64 cycles = to - from;
-        if (cycles > 0) {
-            return ui64(double(cycles) * double(Resolution) / NHPTimer::GetClockRate());
-        } else {
-            return 0;
-        }
-    }
-};
-
-template <typename StatCounter, typename Lock = TMutex, typename Timer = TInstantTimerMs>
+    static TTime Now() { 
+        NHPTimer::STime ret; 
+        NHPTimer::GetTime(&ret); 
+        return ret; 
+    } 
+    static ui64 Duration(TTime from, TTime to) { 
+        i64 cycles = to - from; 
+        if (cycles > 0) { 
+            return ui64(double(cycles) * double(Resolution) / NHPTimer::GetClockRate()); 
+        } else { 
+            return 0; 
+        } 
+    } 
+}; 
+ 
+template <typename StatCounter, typename Lock = TMutex, typename Timer = TInstantTimerMs> 
 class TBucketQuoter {
 public:
-    using TTime = typename Timer::TTime;
-
-    struct TResult {
-        i64 Before;
-        i64 After;
-        ui64 Seqno;
-    };
-
+    using TTime = typename Timer::TTime; 
+ 
+    struct TResult { 
+        i64 Before; 
+        i64 After; 
+        ui64 Seqno; 
+    }; 
+ 
     /* fixed quota */
-    TBucketQuoter(ui64 inflow, ui64 capacity, StatCounter* msgPassed = nullptr,
-                  StatCounter* bucketUnderflows = nullptr, StatCounter* tokensUsed = nullptr,
+    TBucketQuoter(ui64 inflow, ui64 capacity, StatCounter* msgPassed = nullptr, 
+                  StatCounter* bucketUnderflows = nullptr, StatCounter* tokensUsed = nullptr, 
                   StatCounter* usecWaited = nullptr, bool fill = false, StatCounter* aggregateInflow = nullptr)
         : MsgPassed(msgPassed)
         , BucketUnderflows(bucketUnderflows)
         , TokensUsed(tokensUsed)
-        , UsecWaited(usecWaited)
+        , UsecWaited(usecWaited) 
         , AggregateInflow(aggregateInflow)
         , Bucket(fill ? capacity : 0)
         , LastAdd(Timer::Now())
@@ -99,13 +99,13 @@ public:
     }
 
     /* adjustable quotas */
-    TBucketQuoter(TAtomic* inflow, TAtomic* capacity, StatCounter* msgPassed = nullptr,
-                  StatCounter* bucketUnderflows = nullptr, StatCounter* tokensUsed = nullptr,
+    TBucketQuoter(TAtomic* inflow, TAtomic* capacity, StatCounter* msgPassed = nullptr, 
+                  StatCounter* bucketUnderflows = nullptr, StatCounter* tokensUsed = nullptr, 
                   StatCounter* usecWaited = nullptr, bool fill = false, StatCounter* aggregateInflow = nullptr)
         : MsgPassed(msgPassed)
         , BucketUnderflows(bucketUnderflows)
         , TokensUsed(tokensUsed)
-        , UsecWaited(usecWaited)
+        , UsecWaited(usecWaited) 
         , AggregateInflow(aggregateInflow)
         , Bucket(fill ? AtomicGet(*capacity) : 0)
         , LastAdd(Timer::Now())
@@ -116,22 +116,22 @@ public:
     }
 
     bool IsAvail() {
-        TGuard<Lock> g(BucketMutex);
-        FillBucket();
-        if (Bucket < 0) {
-            if (BucketUnderflows) {
-                (*BucketUnderflows)++;
-            }
-        }
-        return (Bucket >= 0);
-    }
-
-    bool IsAvail(TResult& res) {
-        TGuard<Lock> g(BucketMutex);
-        res.Before = Bucket;
+        TGuard<Lock> g(BucketMutex); 
+        FillBucket(); 
+        if (Bucket < 0) { 
+            if (BucketUnderflows) { 
+                (*BucketUnderflows)++; 
+            } 
+        } 
+        return (Bucket >= 0); 
+    } 
+
+    bool IsAvail(TResult& res) { 
+        TGuard<Lock> g(BucketMutex); 
+        res.Before = Bucket; 
         FillBucket();
-        res.After = Bucket;
-        res.Seqno = ++Seqno;
+        res.After = Bucket; 
+        res.Seqno = ++Seqno; 
         if (Bucket < 0) {
             if (BucketUnderflows) {
                 (*BucketUnderflows)++;
@@ -140,58 +140,58 @@ public:
         return (Bucket >= 0);
     }
 
-    ui64 GetAvail() {
-        TGuard<Lock> g(BucketMutex);
-        FillBucket();
-        return Max<i64>(0, Bucket);
-    }
-
-    ui64 GetAvail(TResult& res) {
-        TGuard<Lock> g(BucketMutex);
-        res.Before = Bucket;
-        FillBucket();
-        res.After = Bucket;
-        res.Seqno = ++Seqno;
-        return Max<i64>(0, Bucket);
-    }
-
+    ui64 GetAvail() { 
+        TGuard<Lock> g(BucketMutex); 
+        FillBucket(); 
+        return Max<i64>(0, Bucket); 
+    } 
+ 
+    ui64 GetAvail(TResult& res) { 
+        TGuard<Lock> g(BucketMutex); 
+        res.Before = Bucket; 
+        FillBucket(); 
+        res.After = Bucket; 
+        res.Seqno = ++Seqno; 
+        return Max<i64>(0, Bucket); 
+    } 
+ 
     void Use(ui64 tokens, bool sleep = false) {
-        TGuard<Lock> g(BucketMutex);
-        UseNoLock(tokens, sleep);
-    }
-
-    void Use(ui64 tokens, TResult& res, bool sleep = false) {
-        TGuard<Lock> g(BucketMutex);
-        res.Before = Bucket;
-        UseNoLock(tokens, sleep);
-        res.After = Bucket;
-        res.Seqno = ++Seqno;
+        TGuard<Lock> g(BucketMutex); 
+        UseNoLock(tokens, sleep); 
     }
 
-    i64 UseAndFill(ui64 tokens) {
-        TGuard<Lock> g(BucketMutex);
-        UseNoLock(tokens);
-        FillBucket();
-        return Bucket;
-    }
-
-    void Add(ui64 tokens) {
-        TGuard<Lock> g(BucketMutex);
-        AddNoLock(tokens);
-    }
-
-    void Add(ui64 tokens, TResult& res) {
-        TGuard<Lock> g(BucketMutex);
-        res.Before = Bucket;
-        AddNoLock(tokens);
-        res.After = Bucket;
-        res.Seqno = ++Seqno;
-    }
-
-    ui32 GetWaitTime() {
-        TGuard<Lock> g(BucketMutex);
-
+    void Use(ui64 tokens, TResult& res, bool sleep = false) { 
+        TGuard<Lock> g(BucketMutex); 
+        res.Before = Bucket; 
+        UseNoLock(tokens, sleep); 
+        res.After = Bucket; 
+        res.Seqno = ++Seqno; 
+    } 
+
+    i64 UseAndFill(ui64 tokens) { 
+        TGuard<Lock> g(BucketMutex); 
+        UseNoLock(tokens); 
         FillBucket();
+        return Bucket; 
+    } 
+ 
+    void Add(ui64 tokens) { 
+        TGuard<Lock> g(BucketMutex); 
+        AddNoLock(tokens); 
+    } 
+ 
+    void Add(ui64 tokens, TResult& res) { 
+        TGuard<Lock> g(BucketMutex); 
+        res.Before = Bucket; 
+        AddNoLock(tokens); 
+        res.After = Bucket; 
+        res.Seqno = ++Seqno; 
+    } 
+ 
+    ui32 GetWaitTime() { 
+        TGuard<Lock> g(BucketMutex); 
+ 
+        FillBucket(); 
         if (Bucket >= 0) {
             return 0;
         }
@@ -200,37 +200,37 @@ public:
         return usec;
     }
 
-    ui32 GetWaitTime(TResult& res) {
-        TGuard<Lock> g(BucketMutex);
-        res.Before = Bucket;
-        FillBucket();
-        res.After = Bucket;
-        res.Seqno = ++Seqno;
-        if (Bucket >= 0) {
-            return 0;
-        }
-        ui32 usec = (-Bucket * 1000000) / (*InflowTokensPerSecond);
-        return usec;
-    }
-
+    ui32 GetWaitTime(TResult& res) { 
+        TGuard<Lock> g(BucketMutex); 
+        res.Before = Bucket; 
+        FillBucket(); 
+        res.After = Bucket; 
+        res.Seqno = ++Seqno; 
+        if (Bucket >= 0) { 
+            return 0; 
+        } 
+        ui32 usec = (-Bucket * 1000000) / (*InflowTokensPerSecond); 
+        return usec; 
+    } 
+ 
     void Sleep() {
         while (!IsAvail()) {
             ui32 delay = GetWaitTime();
             if (delay != 0) {
                 usleep(delay);
-                if (UsecWaited) {
-                    (*UsecWaited) += delay;
-                }
+                if (UsecWaited) { 
+                    (*UsecWaited) += delay; 
+                } 
             }
         }
     }
 
 private:
     void FillBucket() {
-        TTime now = Timer::Now();
+        TTime now = Timer::Now(); 
 
-        ui64 elapsed = Timer::Duration(LastAdd, now);
-        if (*InflowTokensPerSecond * elapsed >= Timer::Resolution) {
+        ui64 elapsed = Timer::Duration(LastAdd, now); 
+        if (*InflowTokensPerSecond * elapsed >= Timer::Resolution) { 
             ui64 inflow = *InflowTokensPerSecond * elapsed / Timer::Resolution;
             if (AggregateInflow) {
                 *AggregateInflow += inflow;
@@ -244,35 +244,35 @@ private:
         }
     }
 
-    void UseNoLock(ui64 tokens, bool sleep = false) {
-        if (sleep)
-            Sleep();
-        Bucket -= tokens;
-        if (TokensUsed) {
-            (*TokensUsed) += tokens;
-        }
-        if (MsgPassed) {
-            (*MsgPassed)++;
-        }
-    }
-
-    void AddNoLock(ui64 tokens) {
-        Bucket += tokens;
-        if (Bucket > *BucketTokensCapacity) {
-            Bucket = *BucketTokensCapacity;
-        }
-    }
-
+    void UseNoLock(ui64 tokens, bool sleep = false) { 
+        if (sleep) 
+            Sleep(); 
+        Bucket -= tokens; 
+        if (TokensUsed) { 
+            (*TokensUsed) += tokens; 
+        } 
+        if (MsgPassed) { 
+            (*MsgPassed)++; 
+        } 
+    } 
+ 
+    void AddNoLock(ui64 tokens) { 
+        Bucket += tokens; 
+        if (Bucket > *BucketTokensCapacity) { 
+            Bucket = *BucketTokensCapacity; 
+        } 
+    } 
+ 
     StatCounter* MsgPassed;
     StatCounter* BucketUnderflows;
     StatCounter* TokensUsed;
-    StatCounter* UsecWaited;
+    StatCounter* UsecWaited; 
     StatCounter* AggregateInflow;
 
     i64 Bucket;
-    TTime LastAdd;
-    Lock BucketMutex;
-    ui64 Seqno = 0;
+    TTime LastAdd; 
+    Lock BucketMutex; 
+    ui64 Seqno = 0; 
 
     TAtomic* InflowTokensPerSecond;
     TAtomic* BucketTokensCapacity;
diff --git a/library/cpp/containers/stack_vector/stack_vec.h b/library/cpp/containers/stack_vector/stack_vec.h
index fcc5d9a2a5..5b4d370e1f 100644
--- a/library/cpp/containers/stack_vector/stack_vec.h
+++ b/library/cpp/containers/stack_vector/stack_vec.h
@@ -41,7 +41,7 @@ namespace NPrivate {
         using typename Alloc::value_type;
 
         template <class U>
-        struct rebind: public ::NPrivate::TRebind<Alloc, TSelf, T, U> {
+        struct rebind: public ::NPrivate::TRebind<Alloc, TSelf, T, U> { 
         };
 
     public:
@@ -82,7 +82,7 @@ namespace NPrivate {
 
     private:
         std::aligned_storage_t<sizeof(T), alignof(T)> StackBasedStorage[CountOnStack];
-        bool IsStorageUsed = false;
+        bool IsStorageUsed = false; 
 
     private:
         Alloc& FallbackAllocator() noexcept {
diff --git a/library/cpp/http/server/http.cpp b/library/cpp/http/server/http.cpp
index 128583bdd7..b461c242ab 100644
--- a/library/cpp/http/server/http.cpp
+++ b/library/cpp/http/server/http.cpp
@@ -456,7 +456,7 @@ public:
     TOptions Options_;
     ICallBack* Cb_ = nullptr;
     THttpServer* Parent_ = nullptr;
-    TWakeupPollAble WakeupPollAble;
+    TWakeupPollAble WakeupPollAble; 
     TMutex StopMutex;
 
 private:
diff --git a/library/cpp/lwtrace/all.h b/library/cpp/lwtrace/all.h
index d7aa57c49d..c086bede4a 100644
--- a/library/cpp/lwtrace/all.h
+++ b/library/cpp/lwtrace/all.h
@@ -1,195 +1,195 @@
-#pragma once
-
-#include "control.h"
-#include "event.h"
+#pragma once 
+ 
+#include "control.h" 
+#include "event.h" 
 #include "preprocessor.h"
-#include "probe.h"
+#include "probe.h" 
 #include "start.h"
-
-//
+ 
+// 
 // Full documentation: https://wiki.yandex-team.ru/development/poisk/arcadia/library/lwtrace/
-//
-// Short usage instruction:
-//
-// 1. Declare probes provider in header file 'probes.h':
-//       #include <yweb/robot/kiwi/lwtrace/all.h>
-//       #define MY_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES) \   // name of your provider
-//           PROBE(MyProbe, GROUPS("MyGroup1", "MyGroup2"), TYPES(), NAMES()) \   // probe specification w/o argiments
+// 
+// Short usage instruction: 
+// 
+// 1. Declare probes provider in header file 'probes.h': 
+//       #include <yweb/robot/kiwi/lwtrace/all.h> 
+//       #define MY_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES) \   // name of your provider 
+//           PROBE(MyProbe, GROUPS("MyGroup1", "MyGroup2"), TYPES(), NAMES()) \   // probe specification w/o argiments 
 //           PROBE(MyAnotherProbe, GROUPS("MyGroup2"), TYPES(int, TString), NAMES("arg1", "arg2")) \   // another probe with arguments
-//           PROBE(MyScopedProbe, GROUPS(), TYPES(ui64, int), NAMES("duration", "stage")) \   // scoped probe with argument
-//           /**/
-//       LWTRACE_DECLARE_PROVIDER(MY_PROVIDER)
-//
-// 2. Define provider in source file 'provider.cpp':
-//       #include "probes.h"
-//       LWTRACE_DEFINE_PROVIDER(MY_PROVIDER)
-//
-// 3. Call probes from provider in your code:
-//       #include "probes.h"
-//       int main() {
-//           GLOBAL_LWPROBE(MY_PROVIDER, MyProbe);
-//           GLOBAL_LWPROBE(MY_PROVIDER, MyAnotherProbe, 123, stroka);
-//           ... or ...
-//           LWTRACE_USING(MY_PROVIDER); // expands into using namespace
-//           LWPROBE(MyProbe);
-//           LWPROBE(MyAnotherProbe, 123, stroka);
-//       }
-//
-// 4. Attach provider to your monitoring service:
-//       #include <yweb/robot/kiwi/util/monservice.h>
-//       #include "probes.h"
-//       class TMyMonSrvc: public NKiwi::TMonService {
-//           TMyMonSrvc(TProbeRegistry& probes)
-//           {
-//               THolder<NKiwi::TTraceMonPage> tr(new NKiwi::TTraceMonPage());
-//               tr->GetProbes().AddProbesList(LWTRACE_GET_PROBES(MY_PROVIDER));
-//               Register(tr.Release());
-//           }
-//       };
-//
-// 5. Compile and run application
-//
-// 6. Create file 'mysuper.tr' with trace query:
-//        Blocks { # Log all calls to probes from MyGroup1
-//            ProbeDesc { Group: "MyGroup1" }
-//            Action {
-//                LogAction { LogTimestamp: true }
-//            }
-//        }
-//        Blocks { # Log first 10 calls to MyAnother with arg1 > 1000
-//            ProbeDesc { Name: "MyAnotherProbe"; Provider: "MY_PROVIDER" }
-//            Predicate {
-//                Operators { Type: OT_GT; Param: "arg1"; Value: "1000" }
-//            }
-//            Action {
-//                LogAction { MaxRecords: 10 }
-//            }
-//        }
-//        Blocks { # Start following executon of all 4 blocks each time MyAnotherProbe was called with arg2 == "start"
-//            ProbeDesc { Name: "MyAnotherProbe"; Provider: "MY_PROVIDER" }
-//            Predicate {
-//                Operators { Type: OT_EQ; Param: "arg2"; Value: "start" }
-//            }
-//            Action { StartAction {} }
-//        }
-//        Blocks { # Stop following executon of all 4 blocks each time MyAnotherProbe was called with arg2 == "stop"
-//            ProbeDesc { Name: "MyAnotherProbe"; Provider: "MY_PROVIDER" }
-//            Predicate {
-//                Operators { Type: OT_EQ; Param: "arg2"; Value: "stop" }
-//            }
-//            Action { StopAction {} }
-//        }
-//
-// 7. Send trace query to the server with HTTP POST:
-//       yweb/robot/kiwi/scripts/trace.sh new uniq-id-for-my-trace hostname:monport < mysuper.tr
-//
-// 8. With browser go to: http://hostname:monport/trace
-//
-// 9. Delete query from server:
-//       yweb/robot/kiwi/scripts/trace.sh delete uniq-id-for-my-trace hostname:monport
-//
-//
-// CONFIGURATION AND SUPPORT:
-// 1. Turning off all calls to probes.
-//       Add to project's CMakeLists.txt: add_definitions(-DLWTRACE_DISABLE_PROBES)
-//
-// 2. Turning off all calls to events.
-//       Add to project's CMakeLists.txt: add_definitions(-DLWTRACE_DISABLE_EVENTS)
-//
-// 3. Increasing maximum number of probe parameters:
-//       Add more lines in FOREACH_PARAMNUM macro definition in preprocessor.h
-//
-//
-// ISSUES
-// 1. Note that executors for different blocks are attached in order of their declaration in trace script.
-//    Executor can be called by a program as soon as it is attached, therefore there is no guarantee that
-//    all blocks are started simultaneously
-//
-
-#ifndef LWTRACE_DISABLE
-
-// Declare user provider (see USAGE INSTRUCTION)
-#define LWTRACE_DECLARE_PROVIDER(provider) LWTRACE_DECLARE_PROVIDER_I(provider)
-
-// Define user provider (see USAGE INSTRUCTION)
-#define LWTRACE_DEFINE_PROVIDER(provider) LWTRACE_DEFINE_PROVIDER_I(provider)
-
-// Import names from provider
-#define LWTRACE_USING(provider) using namespace LWTRACE_GET_NAMESPACE(provider);
-
-// Probes and events list accessor
-#define LWTRACE_GET_PROBES(provider) LWTRACE_GET_PROBES_I(provider)
-#define LWTRACE_GET_EVENTS(provider) LWTRACE_GET_EVENTS_I(provider)
-
-#ifndef LWTRACE_DISABLE_PROBES
-
-// Call a probe
-// NOTE: LWPROBE() should be used in source files only with previous call to LWTRACE_USING(MY_PROVIDER)
-// NOTE: in header files GLOBAL_LWPROBE() should be used instead
-// NOTE: if lots of calls needed in header file, it's convenient to define/undef the following macro:
-// NOTE: #define MY_PROBE(name, ...) GLOBAL_LWPROBE(MY_PROVIDER, name, ## __VA_ARGS__)
-#define GLOBAL_LWPROBE(provider, probe, ...) LWPROBE_I(LWTRACE_GET_NAMESPACE(provider)::LWTRACE_GET_NAME(probe), ##__VA_ARGS__)
-#define LWPROBE(probe, ...) LWPROBE_I(LWTRACE_GET_NAME(probe), ##__VA_ARGS__)
+//           PROBE(MyScopedProbe, GROUPS(), TYPES(ui64, int), NAMES("duration", "stage")) \   // scoped probe with argument 
+//           /**/ 
+//       LWTRACE_DECLARE_PROVIDER(MY_PROVIDER) 
+// 
+// 2. Define provider in source file 'provider.cpp': 
+//       #include "probes.h" 
+//       LWTRACE_DEFINE_PROVIDER(MY_PROVIDER) 
+// 
+// 3. Call probes from provider in your code: 
+//       #include "probes.h" 
+//       int main() { 
+//           GLOBAL_LWPROBE(MY_PROVIDER, MyProbe); 
+//           GLOBAL_LWPROBE(MY_PROVIDER, MyAnotherProbe, 123, stroka); 
+//           ... or ... 
+//           LWTRACE_USING(MY_PROVIDER); // expands into using namespace 
+//           LWPROBE(MyProbe); 
+//           LWPROBE(MyAnotherProbe, 123, stroka); 
+//       } 
+// 
+// 4. Attach provider to your monitoring service: 
+//       #include <yweb/robot/kiwi/util/monservice.h> 
+//       #include "probes.h" 
+//       class TMyMonSrvc: public NKiwi::TMonService { 
+//           TMyMonSrvc(TProbeRegistry& probes) 
+//           { 
+//               THolder<NKiwi::TTraceMonPage> tr(new NKiwi::TTraceMonPage()); 
+//               tr->GetProbes().AddProbesList(LWTRACE_GET_PROBES(MY_PROVIDER)); 
+//               Register(tr.Release()); 
+//           } 
+//       }; 
+// 
+// 5. Compile and run application 
+// 
+// 6. Create file 'mysuper.tr' with trace query: 
+//        Blocks { # Log all calls to probes from MyGroup1 
+//            ProbeDesc { Group: "MyGroup1" } 
+//            Action { 
+//                LogAction { LogTimestamp: true } 
+//            } 
+//        } 
+//        Blocks { # Log first 10 calls to MyAnother with arg1 > 1000 
+//            ProbeDesc { Name: "MyAnotherProbe"; Provider: "MY_PROVIDER" } 
+//            Predicate { 
+//                Operators { Type: OT_GT; Param: "arg1"; Value: "1000" } 
+//            } 
+//            Action { 
+//                LogAction { MaxRecords: 10 } 
+//            } 
+//        } 
+//        Blocks { # Start following executon of all 4 blocks each time MyAnotherProbe was called with arg2 == "start" 
+//            ProbeDesc { Name: "MyAnotherProbe"; Provider: "MY_PROVIDER" } 
+//            Predicate { 
+//                Operators { Type: OT_EQ; Param: "arg2"; Value: "start" } 
+//            } 
+//            Action { StartAction {} } 
+//        } 
+//        Blocks { # Stop following executon of all 4 blocks each time MyAnotherProbe was called with arg2 == "stop" 
+//            ProbeDesc { Name: "MyAnotherProbe"; Provider: "MY_PROVIDER" } 
+//            Predicate { 
+//                Operators { Type: OT_EQ; Param: "arg2"; Value: "stop" } 
+//            } 
+//            Action { StopAction {} } 
+//        } 
+// 
+// 7. Send trace query to the server with HTTP POST: 
+//       yweb/robot/kiwi/scripts/trace.sh new uniq-id-for-my-trace hostname:monport < mysuper.tr 
+// 
+// 8. With browser go to: http://hostname:monport/trace 
+// 
+// 9. Delete query from server: 
+//       yweb/robot/kiwi/scripts/trace.sh delete uniq-id-for-my-trace hostname:monport 
+// 
+// 
+// CONFIGURATION AND SUPPORT: 
+// 1. Turning off all calls to probes. 
+//       Add to project's CMakeLists.txt: add_definitions(-DLWTRACE_DISABLE_PROBES) 
+// 
+// 2. Turning off all calls to events. 
+//       Add to project's CMakeLists.txt: add_definitions(-DLWTRACE_DISABLE_EVENTS) 
+// 
+// 3. Increasing maximum number of probe parameters: 
+//       Add more lines in FOREACH_PARAMNUM macro definition in preprocessor.h 
+// 
+// 
+// ISSUES 
+// 1. Note that executors for different blocks are attached in order of their declaration in trace script. 
+//    Executor can be called by a program as soon as it is attached, therefore there is no guarantee that 
+//    all blocks are started simultaneously 
+// 
+ 
+#ifndef LWTRACE_DISABLE 
+ 
+// Declare user provider (see USAGE INSTRUCTION) 
+#define LWTRACE_DECLARE_PROVIDER(provider) LWTRACE_DECLARE_PROVIDER_I(provider) 
+ 
+// Define user provider (see USAGE INSTRUCTION) 
+#define LWTRACE_DEFINE_PROVIDER(provider) LWTRACE_DEFINE_PROVIDER_I(provider) 
+ 
+// Import names from provider 
+#define LWTRACE_USING(provider) using namespace LWTRACE_GET_NAMESPACE(provider); 
+ 
+// Probes and events list accessor 
+#define LWTRACE_GET_PROBES(provider) LWTRACE_GET_PROBES_I(provider) 
+#define LWTRACE_GET_EVENTS(provider) LWTRACE_GET_EVENTS_I(provider) 
+ 
+#ifndef LWTRACE_DISABLE_PROBES 
+ 
+// Call a probe 
+// NOTE: LWPROBE() should be used in source files only with previous call to LWTRACE_USING(MY_PROVIDER) 
+// NOTE: in header files GLOBAL_LWPROBE() should be used instead 
+// NOTE: if lots of calls needed in header file, it's convenient to define/undef the following macro: 
+// NOTE: #define MY_PROBE(name, ...) GLOBAL_LWPROBE(MY_PROVIDER, name, ## __VA_ARGS__) 
+#define GLOBAL_LWPROBE(provider, probe, ...) LWPROBE_I(LWTRACE_GET_NAMESPACE(provider)::LWTRACE_GET_NAME(probe), ##__VA_ARGS__) 
+#define LWPROBE(probe, ...) LWPROBE_I(LWTRACE_GET_NAME(probe), ##__VA_ARGS__) 
 #define GLOBAL_LWPROBE_ENABLED(provider, probe) LWPROBE_ENABLED_I(LWTRACE_GET_NAMESPACE(provider)::LWTRACE_GET_NAME(probe))
 #define LWPROBE_ENABLED(probe) LWPROBE_ENABLED_I(LWTRACE_GET_NAME(probe))
-#define LWPROBE_OBJ(probe, ...) LWPROBE_I(probe, ##__VA_ARGS__)
-
-// Calls a probe when scope is beeing left
-// NOTE: arguments are passed by value and stored until scope exit
-// NOTE: probe should be declared with first params of type ui64, argument for which is automaticaly generated (duration in microseconds)
-// NOTE: *_DURATION() macros take through "..." all arguments except the first one
-#define GLOBAL_LWPROBE_DURATION(provider, probe, ...) LWPROBE_DURATION_I(LWTRACE_GET_NAMESPACE(provider)::LWTRACE_GET_TYPE(probe), lwtrace_scoped_##provider##probe, LWTRACE_GET_NAMESPACE(provider)::LWTRACE_GET_NAME(probe), ##__VA_ARGS__)
-#define LWPROBE_DURATION(probe, ...) LWPROBE_DURATION_I(LWTRACE_GET_TYPE(probe), lwtrace_scoped_##probe, LWTRACE_GET_NAME(probe), ##__VA_ARGS__)
-
-// Probe with orbit support
-#define GLOBAL_LWTRACK(provider, probe, orbit, ...) LWTRACK_I(LWTRACE_GET_NAMESPACE(provider)::LWTRACE_GET_NAME(probe), orbit, ##__VA_ARGS__)
-#define LWTRACK(probe, orbit, ...) LWTRACK_I(LWTRACE_GET_NAME(probe), orbit, ##__VA_ARGS__)
-#define LWTRACK_OBJ(probe, orbit, ...) LWTRACK_I(probe, orbit, ##__VA_ARGS__)
-
-#else
-#define GLOBAL_LWPROBE(provider, probe, ...)
-#define LWPROBE(probe, ...)
+#define LWPROBE_OBJ(probe, ...) LWPROBE_I(probe, ##__VA_ARGS__) 
+ 
+// Calls a probe when scope is beeing left 
+// NOTE: arguments are passed by value and stored until scope exit 
+// NOTE: probe should be declared with first params of type ui64, argument for which is automaticaly generated (duration in microseconds) 
+// NOTE: *_DURATION() macros take through "..." all arguments except the first one 
+#define GLOBAL_LWPROBE_DURATION(provider, probe, ...) LWPROBE_DURATION_I(LWTRACE_GET_NAMESPACE(provider)::LWTRACE_GET_TYPE(probe), lwtrace_scoped_##provider##probe, LWTRACE_GET_NAMESPACE(provider)::LWTRACE_GET_NAME(probe), ##__VA_ARGS__) 
+#define LWPROBE_DURATION(probe, ...) LWPROBE_DURATION_I(LWTRACE_GET_TYPE(probe), lwtrace_scoped_##probe, LWTRACE_GET_NAME(probe), ##__VA_ARGS__) 
+ 
+// Probe with orbit support 
+#define GLOBAL_LWTRACK(provider, probe, orbit, ...) LWTRACK_I(LWTRACE_GET_NAMESPACE(provider)::LWTRACE_GET_NAME(probe), orbit, ##__VA_ARGS__) 
+#define LWTRACK(probe, orbit, ...) LWTRACK_I(LWTRACE_GET_NAME(probe), orbit, ##__VA_ARGS__) 
+#define LWTRACK_OBJ(probe, orbit, ...) LWTRACK_I(probe, orbit, ##__VA_ARGS__) 
+ 
+#else 
+#define GLOBAL_LWPROBE(provider, probe, ...) 
+#define LWPROBE(probe, ...) 
 #define GLOBAL_LWPROBE_ENABLED(provider, probe) false
 #define LWPROBE_ENABLED(probe) false
-#define LWPROBE_OBJ(probe, ...) Y_UNUSED(probe)
-#define GLOBAL_LWPROBE_DURATION(provider, probe, ...)
-#define LWPROBE_DURATION(probe, ...)
-#define GLOBAL_LWTRACK(provider, probe, orbit, ...)
-#define LWTRACK(probe, orbit, ...)
-#define LWTRACK_OBJ(probe, orbit, ...) Y_UNUSED(probe)
-#endif
-
-#ifndef LWTRACE_DISABLE_EVENTS
-
-// Call an event
-// NOTE: LWEVENT() should be used in source files only with previous call to LWTRACE_USING(MY_PROVIDER)
-// NOTE: in header files GLOBAL_LWEVENT() should be used instead
-// NOTE: if lots of calls needed in header file, it's convenient to define/undef the following macro:
-// NOTE: #define MY_EVENT(name, ...) GLOBAL_LWEVENT(MY_PROVIDER, name, ## __VA_ARGS__)
-#define GLOBAL_LWEVENT(provider, event, ...) LWEVENT_I(LWTRACE_GET_NAMESPACE(provider)::LWTRACE_GET_NAME(event), ##__VA_ARGS__)
-#define LWEVENT(event, ...) LWEVENT_I(LWTRACE_GET_NAME(event), ##__VA_ARGS__)
-
-#else
-#define GLOBAL_LWEVENT(provider, event, ...)
-#define LWEVENT(event, ...)
-#endif
-
-#else
-
-#define LWTRACE_DECLARE_PROVIDER(provider)
-#define LWTRACE_DEFINE_PROVIDER(provider)
-#define LWTRACE_USING(provider)
-#define LWTRACE_GET_PROBES(provider) NULL
-#define LWTRACE_GET_EVENTS(provider) NULL
-#define GLOBAL_LWPROBE(provider, probe, ...)
-#define LWPROBE(probe, ...)
+#define LWPROBE_OBJ(probe, ...) Y_UNUSED(probe) 
+#define GLOBAL_LWPROBE_DURATION(provider, probe, ...) 
+#define LWPROBE_DURATION(probe, ...) 
+#define GLOBAL_LWTRACK(provider, probe, orbit, ...) 
+#define LWTRACK(probe, orbit, ...) 
+#define LWTRACK_OBJ(probe, orbit, ...) Y_UNUSED(probe) 
+#endif 
+ 
+#ifndef LWTRACE_DISABLE_EVENTS 
+ 
+// Call an event 
+// NOTE: LWEVENT() should be used in source files only with previous call to LWTRACE_USING(MY_PROVIDER) 
+// NOTE: in header files GLOBAL_LWEVENT() should be used instead 
+// NOTE: if lots of calls needed in header file, it's convenient to define/undef the following macro: 
+// NOTE: #define MY_EVENT(name, ...) GLOBAL_LWEVENT(MY_PROVIDER, name, ## __VA_ARGS__) 
+#define GLOBAL_LWEVENT(provider, event, ...) LWEVENT_I(LWTRACE_GET_NAMESPACE(provider)::LWTRACE_GET_NAME(event), ##__VA_ARGS__) 
+#define LWEVENT(event, ...) LWEVENT_I(LWTRACE_GET_NAME(event), ##__VA_ARGS__) 
+ 
+#else 
+#define GLOBAL_LWEVENT(provider, event, ...) 
+#define LWEVENT(event, ...) 
+#endif 
+ 
+#else 
+ 
+#define LWTRACE_DECLARE_PROVIDER(provider) 
+#define LWTRACE_DEFINE_PROVIDER(provider) 
+#define LWTRACE_USING(provider) 
+#define LWTRACE_GET_PROBES(provider) NULL 
+#define LWTRACE_GET_EVENTS(provider) NULL 
+#define GLOBAL_LWPROBE(provider, probe, ...) 
+#define LWPROBE(probe, ...) 
 #define GLOBAL_LWPROBE_ENABLED(provider, probe) false
 #define LWPROBE_ENABLED(probe) false
-#define GLOBAL_LWPROBE_DURATION(provider, probe, ...)
-#define LWPROBE_DURATION(probe, ...)
-#define GLOBAL_LWTRACK(provider, probe, orbit, ...)
-#define LWTRACK(probe, orbit, ...)
-#define GLOBAL_LWEVENT(provider, event, ...)
-#define LWEVENT(event, ...)
-
-#endif
+#define GLOBAL_LWPROBE_DURATION(provider, probe, ...) 
+#define LWPROBE_DURATION(probe, ...) 
+#define GLOBAL_LWTRACK(provider, probe, orbit, ...) 
+#define LWTRACK(probe, orbit, ...) 
+#define GLOBAL_LWEVENT(provider, event, ...) 
+#define LWEVENT(event, ...) 
+ 
+#endif 
diff --git a/library/cpp/lwtrace/check.cpp b/library/cpp/lwtrace/check.cpp
index 4e34fc5d49..5f4da9712e 100644
--- a/library/cpp/lwtrace/check.cpp
+++ b/library/cpp/lwtrace/check.cpp
@@ -1,18 +1,18 @@
-#include "check.h"
+#include "check.h" 
 
 #include <util/stream/output.h>
-#include <util/string/cast.h>
-
-namespace NLWTrace {
-    int TCheck::ObjCount = 0;
-}
-
-template <>
-NLWTrace::TCheck FromStringImpl(const char* data, size_t len) {
-    return NLWTrace::TCheck(FromString<int, char>(data, len));
-}
-
-template <>
-void Out<NLWTrace::TCheck>(IOutputStream& o, TTypeTraits<NLWTrace::TCheck>::TFuncParam t) {
-    Out<int>(o, t.Value);
-}
+#include <util/string/cast.h> 
+ 
+namespace NLWTrace { 
+    int TCheck::ObjCount = 0; 
+} 
+ 
+template <> 
+NLWTrace::TCheck FromStringImpl(const char* data, size_t len) { 
+    return NLWTrace::TCheck(FromString<int, char>(data, len)); 
+} 
+ 
+template <> 
+void Out<NLWTrace::TCheck>(IOutputStream& o, TTypeTraits<NLWTrace::TCheck>::TFuncParam t) { 
+    Out<int>(o, t.Value); 
+} 
diff --git a/library/cpp/lwtrace/check.h b/library/cpp/lwtrace/check.h
index 71503cbc7b..e346e04dfb 100644
--- a/library/cpp/lwtrace/check.h
+++ b/library/cpp/lwtrace/check.h
@@ -1,78 +1,78 @@
-#pragma once
+#pragma once 
+ 
+namespace NLWTrace { 
+    struct TCheck { 
+        int Value; 
+        static int ObjCount; 
+ 
+        TCheck() 
+            : Value(0) 
+        { 
+            ObjCount++; 
+        } 
+ 
+        explicit TCheck(int value) 
+            : Value(value) 
+        { 
+            ObjCount++; 
+        } 
+ 
+        TCheck(const TCheck& o) 
+            : Value(o.Value) 
+        { 
+            ObjCount++; 
+        } 
+ 
+        ~TCheck() { 
+            ObjCount--; 
+        } 
+ 
+        bool operator<(const TCheck& rhs) const { 
+            return Value < rhs.Value; 
+        } 
+        bool operator>(const TCheck& rhs) const { 
+            return Value > rhs.Value; 
+        } 
+        bool operator<=(const TCheck& rhs) const { 
+            return Value <= rhs.Value; 
+        } 
+        bool operator>=(const TCheck& rhs) const { 
+            return Value >= rhs.Value; 
+        } 
+        bool operator==(const TCheck& rhs) const { 
+            return Value == rhs.Value; 
+        } 
+        bool operator!=(const TCheck& rhs) const { 
+            return Value != rhs.Value; 
+        } 
+        TCheck operator+(const TCheck& rhs) const { 
+            return TCheck(Value + rhs.Value); 
+        } 
+        TCheck operator-(const TCheck& rhs) const { 
+            return TCheck(Value - rhs.Value); 
+        } 
+        TCheck operator*(const TCheck& rhs) const { 
+            return TCheck(Value * rhs.Value); 
+        } 
+        TCheck operator/(const TCheck& rhs) const { 
+            return TCheck(Value / rhs.Value); 
+        } 
+        TCheck operator%(const TCheck& rhs) const { 
+            return TCheck(Value % rhs.Value); 
+        } 
+ 
+        void Add(const TCheck rhs) { 
+            Value += rhs.Value; 
+        } 
+        void Sub(const TCheck rhs) { 
+            Value -= rhs.Value; 
+        } 
+        void Inc() { 
+            ++Value; 
+        } 
+        void Dec() { 
+            --Value; 
+        } 
+    }; 
 
-namespace NLWTrace {
-    struct TCheck {
-        int Value;
-        static int ObjCount;
-
-        TCheck()
-            : Value(0)
-        {
-            ObjCount++;
-        }
-
-        explicit TCheck(int value)
-            : Value(value)
-        {
-            ObjCount++;
-        }
-
-        TCheck(const TCheck& o)
-            : Value(o.Value)
-        {
-            ObjCount++;
-        }
-
-        ~TCheck() {
-            ObjCount--;
-        }
-
-        bool operator<(const TCheck& rhs) const {
-            return Value < rhs.Value;
-        }
-        bool operator>(const TCheck& rhs) const {
-            return Value > rhs.Value;
-        }
-        bool operator<=(const TCheck& rhs) const {
-            return Value <= rhs.Value;
-        }
-        bool operator>=(const TCheck& rhs) const {
-            return Value >= rhs.Value;
-        }
-        bool operator==(const TCheck& rhs) const {
-            return Value == rhs.Value;
-        }
-        bool operator!=(const TCheck& rhs) const {
-            return Value != rhs.Value;
-        }
-        TCheck operator+(const TCheck& rhs) const {
-            return TCheck(Value + rhs.Value);
-        }
-        TCheck operator-(const TCheck& rhs) const {
-            return TCheck(Value - rhs.Value);
-        }
-        TCheck operator*(const TCheck& rhs) const {
-            return TCheck(Value * rhs.Value);
-        }
-        TCheck operator/(const TCheck& rhs) const {
-            return TCheck(Value / rhs.Value);
-        }
-        TCheck operator%(const TCheck& rhs) const {
-            return TCheck(Value % rhs.Value);
-        }
-
-        void Add(const TCheck rhs) {
-            Value += rhs.Value;
-        }
-        void Sub(const TCheck rhs) {
-            Value -= rhs.Value;
-        }
-        void Inc() {
-            ++Value;
-        }
-        void Dec() {
-            --Value;
-        }
-    };
-
-}
+} 
diff --git a/library/cpp/lwtrace/control.h b/library/cpp/lwtrace/control.h
index 16b24eafd2..478488e653 100644
--- a/library/cpp/lwtrace/control.h
+++ b/library/cpp/lwtrace/control.h
@@ -1,5 +1,5 @@
-#pragma once
-
+#pragma once 
+ 
 #include "custom_action.h"
 #include "event.h"
 #include "log.h"
@@ -10,199 +10,199 @@
 
 #include <google/protobuf/repeated_field.h>
 
-#include <util/generic/deque.h>
-#include <util/generic/hash.h>
-#include <util/generic/noncopyable.h>
-#include <util/generic/ptr.h>
-#include <util/generic/set.h>
-#include <util/generic/vector.h>
-
-namespace NLWTrace {
+#include <util/generic/deque.h> 
+#include <util/generic/hash.h> 
+#include <util/generic/noncopyable.h> 
+#include <util/generic/ptr.h> 
+#include <util/generic/set.h> 
+#include <util/generic/vector.h> 
+ 
+namespace NLWTrace { 
 
     using TProbeMap = THashMap<std::pair<TString, TString>, TProbe*>;
 
-    // Interface for probe ownership management
-    class IBox: public virtual TThrRefBase {
-    private:
-        bool Owns;
+    // Interface for probe ownership management 
+    class IBox: public virtual TThrRefBase { 
+    private: 
+        bool Owns; 
 
-    public:
-        explicit IBox(bool ownsProbe = false)
-            : Owns(ownsProbe)
+    public: 
+        explicit IBox(bool ownsProbe = false) 
+            : Owns(ownsProbe) 
         {
         }
-
-        bool OwnsProbe() {
-            return Owns;
-        }
-
-        virtual TProbe* GetProbe() = 0;
-    };
-
-    using TBoxPtr = TIntrusivePtr<IBox>;
-
-    // Simple not-owning box, that just holds pointer to static/global probe (e.g. created by LWTRACE_DEFINE_PROVIDER)
-    class TStaticBox: public IBox {
-    private:
-        TProbe* Probe;
-
-    public:
-        explicit TStaticBox(TProbe* probe)
-            : IBox(false)
-            , Probe(probe)
+ 
+        bool OwnsProbe() { 
+            return Owns; 
+        } 
+ 
+        virtual TProbe* GetProbe() = 0; 
+    }; 
+ 
+    using TBoxPtr = TIntrusivePtr<IBox>; 
+ 
+    // Simple not-owning box, that just holds pointer to static/global probe (e.g. created by LWTRACE_DEFINE_PROVIDER) 
+    class TStaticBox: public IBox { 
+    private: 
+        TProbe* Probe; 
+
+    public: 
+        explicit TStaticBox(TProbe* probe) 
+            : IBox(false) 
+            , Probe(probe) 
         {
         }
-
-        TProbe* GetProbe() override {
-            return Probe;
-        }
-    };
-
-    // Just a set of unique probes
-    // TODO[serxa]: get rid of different ProbeRegistries, use unique one (singleton) with auto registration
-    class TProbeRegistry: public TNonCopyable {
-    private:
-        TMutex Mutex;
-
-        // Probe* pointer uniquely identifies a probe and boxptr actually owns TProbe object (if required)
-        using TProbes = THashMap<TProbe*, TBoxPtr>;
-        TProbes Probes;
-
-        // Probe provider-name pairs must be unique, keep track of them
-        using TIds = TSet<std::pair<TString, TString>>;
-        TIds Ids;
-
-    public:
-        // Add probes from null-terminated array of probe pointers. Probe can be added multiple times. Thread-safe.
-        // Implies probes you pass will live forever (e.g. created by LWTRACE_DEFINE_PROVIDER)
-        void AddProbesList(TProbe** reg);
-
-        // Manage probes that are created/destructed dynamically
-        void AddProbe(const TBoxPtr& box);
-        void RemoveProbe(TProbe* probe);
-
-        // Helper class to make thread-safe iteration over probes
-        class TProbesAccessor {
-        private:
-            TGuard<TMutex> Guard;
-            TProbes& Probes;
-        public:
-            explicit TProbesAccessor(TProbeRegistry* registry)
-                : Guard(registry->Mutex)
-                , Probes(registry->Probes)
-            {}
-
-            explicit TProbesAccessor(TProbeRegistry& registry)
-                : TProbesAccessor(&registry)
-            {}
-
-            auto begin() { return Probes.begin(); }
-            auto end() { return Probes.end(); }
-        };
-
-        friend class TProbesAccessor;
-
-    private:
-        void AddProbeNoLock(const TBoxPtr& box);
-        void RemoveProbeNoLock(TProbe* probe);
-    };
-
-    // Represents a compiled trace query, holds executors attached to probes
-    class TSession: public TNonCopyable {
-    public:
-        typedef THashMap<TString, TAtomicBase> TTraceVariables;
-
-    private:
-        const TInstant StartTime;
-        const ui64 TraceIdx;
-        TProbeRegistry& Registry;
-        TDuration StoreDuration;
-        TDuration ReadDuration;
-        TCyclicLog CyclicLog;
-        TDurationLog DurationLog;
-        TCyclicDepot CyclicDepot;
-        TDurationDepot DurationDepot;
-        TAtomic LastTrackId;
+ 
+        TProbe* GetProbe() override { 
+            return Probe; 
+        } 
+    }; 
+ 
+    // Just a set of unique probes 
+    // TODO[serxa]: get rid of different ProbeRegistries, use unique one (singleton) with auto registration 
+    class TProbeRegistry: public TNonCopyable { 
+    private: 
+        TMutex Mutex; 
+ 
+        // Probe* pointer uniquely identifies a probe and boxptr actually owns TProbe object (if required) 
+        using TProbes = THashMap<TProbe*, TBoxPtr>; 
+        TProbes Probes; 
+ 
+        // Probe provider-name pairs must be unique, keep track of them 
+        using TIds = TSet<std::pair<TString, TString>>; 
+        TIds Ids; 
+ 
+    public: 
+        // Add probes from null-terminated array of probe pointers. Probe can be added multiple times. Thread-safe. 
+        // Implies probes you pass will live forever (e.g. created by LWTRACE_DEFINE_PROVIDER) 
+        void AddProbesList(TProbe** reg); 
+ 
+        // Manage probes that are created/destructed dynamically 
+        void AddProbe(const TBoxPtr& box); 
+        void RemoveProbe(TProbe* probe); 
+ 
+        // Helper class to make thread-safe iteration over probes 
+        class TProbesAccessor { 
+        private: 
+            TGuard<TMutex> Guard; 
+            TProbes& Probes; 
+        public: 
+            explicit TProbesAccessor(TProbeRegistry* registry) 
+                : Guard(registry->Mutex) 
+                , Probes(registry->Probes) 
+            {} 
+ 
+            explicit TProbesAccessor(TProbeRegistry& registry) 
+                : TProbesAccessor(&registry) 
+            {} 
+ 
+            auto begin() { return Probes.begin(); } 
+            auto end() { return Probes.end(); } 
+        }; 
+ 
+        friend class TProbesAccessor; 
+ 
+    private: 
+        void AddProbeNoLock(const TBoxPtr& box); 
+        void RemoveProbeNoLock(TProbe* probe); 
+    }; 
+ 
+    // Represents a compiled trace query, holds executors attached to probes 
+    class TSession: public TNonCopyable { 
+    public: 
+        typedef THashMap<TString, TAtomicBase> TTraceVariables; 
+ 
+    private: 
+        const TInstant StartTime; 
+        const ui64 TraceIdx; 
+        TProbeRegistry& Registry; 
+        TDuration StoreDuration; 
+        TDuration ReadDuration; 
+        TCyclicLog CyclicLog; 
+        TDurationLog DurationLog; 
+        TCyclicDepot CyclicDepot; 
+        TDurationDepot DurationDepot; 
+        TAtomic LastTrackId; 
         TAtomic LastSpanId;
-        typedef TVector<std::pair<TProbe*, IExecutor*>> TProbes;
-        TProbes Probes;
-        bool Attached;
-        NLWTrace::TQuery Query;
-        TTraceVariables TraceVariables;
-        TTraceResources TraceResources;
-        void InsertExecutor(TTraceVariables& traceVariables,
-                            size_t bi, const NLWTrace::TPredicate* pred,
-                            const google::protobuf::RepeatedPtrField<NLWTrace::TAction>& actions,
-                            TProbe* probe, const bool destructiveActionsAllowed,
-                            const TCustomActionFactory& customActionFactory);
-
-    private:
-        void Destroy();
-
-    public:
-        TSession(ui64 traceIdx,
-               TProbeRegistry& registry,
-               const NLWTrace::TQuery& query,
-               const bool destructiveActionsAllowed,
-               const TCustomActionFactory& customActionFactory);
-        ~TSession();
-        void Detach();
-        size_t GetEventsCount() const;
-        size_t GetThreadsCount() const;
-        const NLWTrace::TQuery& GetQuery() const {
-            return Query;
-        }
-        TInstant GetStartTime() const {
-            return StartTime;
-        }
-        ui64 GetTraceIdx() const {
-            return TraceIdx;
-        }
-        TTraceResources& Resources() {
-            return TraceResources;
-        }
-        const TTraceResources& Resources() const {
-            return TraceResources;
-        }
-
-        template <class TReader>
-        void ReadThreads(TReader& r) const {
-            CyclicLog.ReadThreads(r);
-            DurationLog.ReadThreads(r);
-        }
-
-        template <class TReader>
-        void ReadItems(TReader& r) const {
-            CyclicLog.ReadItems(r);
-            DurationLog.ReadItems(GetCycleCount(), DurationToCycles(ReadDuration), r);
-        }
-
-        template <class TReader>
-        void ReadItems(ui64 now, ui64 duration, TReader& r) const {
-            CyclicLog.ReadItems(r);
-            DurationLog.ReadItems(now, duration, r);
-        }
-
-        template <class TReader>
-        void ReadDepotThreads(TReader& r) const {
-            CyclicDepot.ReadThreads(r);
-            DurationDepot.ReadThreads(r);
-        }
-
-        template <class TReader>
-        void ReadDepotItems(TReader& r) const {
-            CyclicDepot.ReadItems(r);
-            DurationDepot.ReadItems(GetCycleCount(), DurationToCycles(ReadDuration), r);
-        }
-
-        template <class TReader>
-        void ReadDepotItems(ui64 now, ui64 duration, TReader& r) const {
-            CyclicDepot.ReadItems(r);
-            DurationDepot.ReadItems(now, duration, r);
-        }
-        void ToProtobuf(TLogPb& pb) const;
-    };
-
+        typedef TVector<std::pair<TProbe*, IExecutor*>> TProbes; 
+        TProbes Probes; 
+        bool Attached; 
+        NLWTrace::TQuery Query; 
+        TTraceVariables TraceVariables; 
+        TTraceResources TraceResources; 
+        void InsertExecutor(TTraceVariables& traceVariables, 
+                            size_t bi, const NLWTrace::TPredicate* pred, 
+                            const google::protobuf::RepeatedPtrField<NLWTrace::TAction>& actions, 
+                            TProbe* probe, const bool destructiveActionsAllowed, 
+                            const TCustomActionFactory& customActionFactory); 
+ 
+    private: 
+        void Destroy(); 
+ 
+    public: 
+        TSession(ui64 traceIdx, 
+               TProbeRegistry& registry, 
+               const NLWTrace::TQuery& query, 
+               const bool destructiveActionsAllowed, 
+               const TCustomActionFactory& customActionFactory); 
+        ~TSession(); 
+        void Detach(); 
+        size_t GetEventsCount() const; 
+        size_t GetThreadsCount() const; 
+        const NLWTrace::TQuery& GetQuery() const { 
+            return Query; 
+        } 
+        TInstant GetStartTime() const { 
+            return StartTime; 
+        } 
+        ui64 GetTraceIdx() const { 
+            return TraceIdx; 
+        } 
+        TTraceResources& Resources() { 
+            return TraceResources; 
+        } 
+        const TTraceResources& Resources() const { 
+            return TraceResources; 
+        } 
+ 
+        template <class TReader> 
+        void ReadThreads(TReader& r) const { 
+            CyclicLog.ReadThreads(r); 
+            DurationLog.ReadThreads(r); 
+        } 
+ 
+        template <class TReader> 
+        void ReadItems(TReader& r) const { 
+            CyclicLog.ReadItems(r); 
+            DurationLog.ReadItems(GetCycleCount(), DurationToCycles(ReadDuration), r); 
+        } 
+ 
+        template <class TReader> 
+        void ReadItems(ui64 now, ui64 duration, TReader& r) const { 
+            CyclicLog.ReadItems(r); 
+            DurationLog.ReadItems(now, duration, r); 
+        } 
+ 
+        template <class TReader> 
+        void ReadDepotThreads(TReader& r) const { 
+            CyclicDepot.ReadThreads(r); 
+            DurationDepot.ReadThreads(r); 
+        } 
+ 
+        template <class TReader> 
+        void ReadDepotItems(TReader& r) const { 
+            CyclicDepot.ReadItems(r); 
+            DurationDepot.ReadItems(GetCycleCount(), DurationToCycles(ReadDuration), r); 
+        } 
+ 
+        template <class TReader> 
+        void ReadDepotItems(ui64 now, ui64 duration, TReader& r) const { 
+            CyclicDepot.ReadItems(r); 
+            DurationDepot.ReadItems(now, duration, r); 
+        } 
+        void ToProtobuf(TLogPb& pb) const; 
+    }; 
+ 
     // Deserialization result.
     // Either IsSuccess is true or FailedEventNames contains event names
     // we were not able to deserialize.
@@ -218,112 +218,112 @@ namespace NLWTrace {
         }
     };
 
-    // Just a registry of all active trace queries
-    // Facade for all interactions with probes/traces
-    class TManager: public TNonCopyable {
-    private:
-        TProbeRegistry& Registry;
-        TMutex Mtx;
+    // Just a registry of all active trace queries 
+    // Facade for all interactions with probes/traces 
+    class TManager: public TNonCopyable { 
+    private: 
+        TProbeRegistry& Registry; 
+        TMutex Mtx; 
         ui64 LastTraceIdx = 1;
-        typedef THashMap<TString, TSession*> TTraces; // traceId -> TSession
-        TTraces Traces;
-        bool DestructiveActionsAllowed;
-        TCustomActionFactory CustomActionFactory;
+        typedef THashMap<TString, TSession*> TTraces; // traceId -> TSession 
+        TTraces Traces; 
+        bool DestructiveActionsAllowed; 
+        TCustomActionFactory CustomActionFactory; 
         THolder<TRunLogShuttleActionExecutor<TCyclicDepot>> SerializingExecutor;
-
-    public:
+ 
+    public: 
         static constexpr ui64 RemoteTraceIdx = 0;
 
     public:
-        TManager(TProbeRegistry& registry, bool allowDestructiveActions);
-        ~TManager();
-        bool HasTrace(const TString& id) const;
-        const TSession* GetTrace(const TString& id) const;
-        void New(const TString& id, const NLWTrace::TQuery& query);
-        void Delete(const TString& id);
-        void Stop(const TString& id);
-
-        template <class TReader>
-        void ReadProbes(TReader& reader) const {
-            TProbeRegistry::TProbesAccessor probes(Registry);
-            for (auto& kv : probes) {
-                TProbe* probe = kv.first;
-                reader.Push(probe);
-            }
-        }
-
-        template <class TReader>
-        void ReadTraces(TReader& reader) const {
-            TGuard<TMutex> g(Mtx);
-            for (const auto& Trace : Traces) {
-                const TString& id = Trace.first;
-                const TSession* trace = Trace.second;
-                reader.Push(id, trace);
-            }
-        }
-
-        template <class TReader>
-        void ReadLog(const TString& id, TReader& reader) {
-            TGuard<TMutex> g(Mtx);
-            TTraces::iterator it = Traces.find(id);
-            if (it == Traces.end()) {
-                ythrow yexception() << "trace id '" << id << "' is not used";
-            } else {
-                TSession* trace = it->second;
-                trace->ReadItems(reader);
-            }
-        }
-
-        template <class TReader>
-        void ReadLog(const TString& id, ui64 now, TReader& reader) {
-            TGuard<TMutex> g(Mtx);
-            TTraces::iterator it = Traces.find(id);
-            if (it == Traces.end()) {
-                ythrow yexception() << "trace id '" << id << "' is not used";
-            } else {
-                TSession* trace = it->second;
-                trace->ReadItems(now, reader);
-            }
-        }
-
-        template <class TReader>
-        void ReadDepot(const TString& id, TReader& reader) {
-            TGuard<TMutex> g(Mtx);
-            TTraces::iterator it = Traces.find(id);
-            if (it == Traces.end()) {
-                ythrow yexception() << "trace id '" << id << "' is not used";
-            } else {
-                TSession* trace = it->second;
-                trace->ReadDepotItems(reader);
-            }
-        }
-
-        template <class TReader>
-        void ReadDepot(const TString& id, ui64 now, TReader& reader) {
-            TGuard<TMutex> g(Mtx);
-            TTraces::iterator it = Traces.find(id);
-            if (it == Traces.end()) {
-                ythrow yexception() << "trace id '" << id << "' is not used";
-            } else {
-                TSession* trace = it->second;
-                trace->ReadDepotItems(now, reader);
-            }
-        }
-
-        bool GetDestructiveActionsAllowed() {
-            return DestructiveActionsAllowed;
-        }
-
-        void RegisterCustomAction(const TString& name, const TCustomActionFactory::TCallback& callback) {
-            CustomActionFactory.Register(name, callback);
-        }
-
-        template <class T>
-        void RegisterCustomAction() {
-            CustomActionFactory.Register(T::GetActionName(), [=](TProbe* probe, const TCustomAction& action, TSession* trace) {
-                return new T(probe, action, trace);
-            });
-        }
+        TManager(TProbeRegistry& registry, bool allowDestructiveActions); 
+        ~TManager(); 
+        bool HasTrace(const TString& id) const; 
+        const TSession* GetTrace(const TString& id) const; 
+        void New(const TString& id, const NLWTrace::TQuery& query); 
+        void Delete(const TString& id); 
+        void Stop(const TString& id); 
+ 
+        template <class TReader> 
+        void ReadProbes(TReader& reader) const { 
+            TProbeRegistry::TProbesAccessor probes(Registry); 
+            for (auto& kv : probes) { 
+                TProbe* probe = kv.first; 
+                reader.Push(probe); 
+            } 
+        } 
+
+        template <class TReader> 
+        void ReadTraces(TReader& reader) const { 
+            TGuard<TMutex> g(Mtx); 
+            for (const auto& Trace : Traces) { 
+                const TString& id = Trace.first; 
+                const TSession* trace = Trace.second; 
+                reader.Push(id, trace); 
+            } 
+        } 
+ 
+        template <class TReader> 
+        void ReadLog(const TString& id, TReader& reader) { 
+            TGuard<TMutex> g(Mtx); 
+            TTraces::iterator it = Traces.find(id); 
+            if (it == Traces.end()) { 
+                ythrow yexception() << "trace id '" << id << "' is not used"; 
+            } else { 
+                TSession* trace = it->second; 
+                trace->ReadItems(reader); 
+            } 
+        } 
+ 
+        template <class TReader> 
+        void ReadLog(const TString& id, ui64 now, TReader& reader) { 
+            TGuard<TMutex> g(Mtx); 
+            TTraces::iterator it = Traces.find(id); 
+            if (it == Traces.end()) { 
+                ythrow yexception() << "trace id '" << id << "' is not used"; 
+            } else { 
+                TSession* trace = it->second; 
+                trace->ReadItems(now, reader); 
+            } 
+        } 
+ 
+        template <class TReader> 
+        void ReadDepot(const TString& id, TReader& reader) { 
+            TGuard<TMutex> g(Mtx); 
+            TTraces::iterator it = Traces.find(id); 
+            if (it == Traces.end()) { 
+                ythrow yexception() << "trace id '" << id << "' is not used"; 
+            } else { 
+                TSession* trace = it->second; 
+                trace->ReadDepotItems(reader); 
+            } 
+        } 
+ 
+        template <class TReader> 
+        void ReadDepot(const TString& id, ui64 now, TReader& reader) { 
+            TGuard<TMutex> g(Mtx); 
+            TTraces::iterator it = Traces.find(id); 
+            if (it == Traces.end()) { 
+                ythrow yexception() << "trace id '" << id << "' is not used"; 
+            } else { 
+                TSession* trace = it->second; 
+                trace->ReadDepotItems(now, reader); 
+            } 
+        } 
+ 
+        bool GetDestructiveActionsAllowed() { 
+            return DestructiveActionsAllowed; 
+        } 
+ 
+        void RegisterCustomAction(const TString& name, const TCustomActionFactory::TCallback& callback) { 
+            CustomActionFactory.Register(name, callback); 
+        } 
+ 
+        template <class T> 
+        void RegisterCustomAction() { 
+            CustomActionFactory.Register(T::GetActionName(), [=](TProbe* probe, const TCustomAction& action, TSession* trace) { 
+                return new T(probe, action, trace); 
+            }); 
+        } 
 
         TProbeMap GetProbesMap();
 
@@ -347,5 +347,5 @@ namespace NLWTrace {
         bool IsTraced(TOrbit& orbit) {
             return orbit.HasShuttle(TManager::RemoteTraceIdx);
         }
-    };
-}
+    }; 
+} 
diff --git a/library/cpp/lwtrace/custom_action.cpp b/library/cpp/lwtrace/custom_action.cpp
index a379b34ec0..dc97b44ac0 100644
--- a/library/cpp/lwtrace/custom_action.cpp
+++ b/library/cpp/lwtrace/custom_action.cpp
@@ -1,21 +1,21 @@
-#include "custom_action.h"
+#include "custom_action.h" 
 
 #include "control.h"
 
 using namespace NLWTrace;
 
-TCustomActionExecutor* TCustomActionFactory::Create(TProbe* probe, const TCustomAction& action, TSession* trace) const {
-    auto iter = Callbacks.find(action.GetName());
-    if (iter != Callbacks.end()) {
-        return iter->second(probe, action, trace);
-    } else {
-        return nullptr;
-    }
+TCustomActionExecutor* TCustomActionFactory::Create(TProbe* probe, const TCustomAction& action, TSession* trace) const { 
+    auto iter = Callbacks.find(action.GetName()); 
+    if (iter != Callbacks.end()) { 
+        return iter->second(probe, action, trace); 
+    } else { 
+        return nullptr; 
+    } 
 }
-
-void TCustomActionFactory::Register(const TString& name, const TCustomActionFactory::TCallback& callback) {
+ 
+void TCustomActionFactory::Register(const TString& name, const TCustomActionFactory::TCallback& callback) { 
     if (Callbacks.contains(name)) {
-        ythrow yexception() << "duplicate custom action '" << name << "'";
-    }
-    Callbacks[name] = callback;
-}
+        ythrow yexception() << "duplicate custom action '" << name << "'"; 
+    } 
+    Callbacks[name] = callback; 
+} 
diff --git a/library/cpp/lwtrace/custom_action.h b/library/cpp/lwtrace/custom_action.h
index 92a3c66b84..6d950a39e1 100644
--- a/library/cpp/lwtrace/custom_action.h
+++ b/library/cpp/lwtrace/custom_action.h
@@ -8,68 +8,68 @@
 
 #include <functional>
 
-namespace NLWTrace {
-    class TSession;
+namespace NLWTrace { 
+    class TSession; 
 
-    // Custom action can save any stuff (derived from IResource) in TSession object
-    // IMPORTANT: Derived class will be used from multiple threads! (see example3)
-    class IResource: public TAtomicRefCount<IResource> {
-    public:
-        virtual ~IResource() {
-        }
-    };
-    using TResourcePtr = TIntrusivePtr<IResource>;
+    // Custom action can save any stuff (derived from IResource) in TSession object 
+    // IMPORTANT: Derived class will be used from multiple threads! (see example3) 
+    class IResource: public TAtomicRefCount<IResource> { 
+    public: 
+        virtual ~IResource() { 
+        } 
+    }; 
+    using TResourcePtr = TIntrusivePtr<IResource>; 
+ 
+    // Trace resources that is used to hold/get/create any stuff 
+    class TTraceResources: public THashMap<TString, TResourcePtr> { 
+    public: 
+        template <class T> 
+        T& Get(const TString& name) { 
+            auto iter = find(name); 
+            if (iter == end()) { 
+                iter = insert(value_type(name, TResourcePtr(new T()))).first; 
+            } 
+            return *static_cast<T*>(iter->second.Get()); 
+        } 
+ 
+        template <class T> 
+        const T* GetOrNull(const TString& name) const { 
+            auto iter = find(name); 
+            if (iter == end()) { 
+                return nullptr; 
+            } 
+            return *iter->second; 
+        } 
+    }; 
+ 
+    // Base class of all custom actions 
+    class TCustomActionExecutor: public IExecutor { 
+    protected: 
+        TProbe* const Probe; 
+        bool Destructive; 
+ 
+    public: 
+        TCustomActionExecutor(TProbe* probe, bool destructive) 
+            : IExecutor() 
+            , Probe(probe) 
+            , Destructive(destructive) 
+        { 
+        } 
+ 
+        bool IsDestructive() { 
+            return Destructive; 
+        } 
+    }; 
 
-    // Trace resources that is used to hold/get/create any stuff
-    class TTraceResources: public THashMap<TString, TResourcePtr> {
-    public:
-        template <class T>
-        T& Get(const TString& name) {
-            auto iter = find(name);
-            if (iter == end()) {
-                iter = insert(value_type(name, TResourcePtr(new T()))).first;
-            }
-            return *static_cast<T*>(iter->second.Get());
-        }
-
-        template <class T>
-        const T* GetOrNull(const TString& name) const {
-            auto iter = find(name);
-            if (iter == end()) {
-                return nullptr;
-            }
-            return *iter->second;
-        }
-    };
-
-    // Base class of all custom actions
-    class TCustomActionExecutor: public IExecutor {
-    protected:
-        TProbe* const Probe;
-        bool Destructive;
-
-    public:
-        TCustomActionExecutor(TProbe* probe, bool destructive)
-            : IExecutor()
-            , Probe(probe)
-            , Destructive(destructive)
-        {
-        }
-
-        bool IsDestructive() {
-            return Destructive;
-        }
-    };
-
-    // Factory to produce custom action executors
-    class TCustomActionFactory {
-    public:
-        using TCallback = std::function<TCustomActionExecutor*(TProbe* probe, const TCustomAction& action, TSession* trace)>;
-        TCustomActionExecutor* Create(TProbe* probe, const TCustomAction& action, TSession* trace) const;
-        void Register(const TString& name, const TCallback& callback);
-
-    private:
-        THashMap<TString, TCallback> Callbacks;
-    };
-
-}
+    // Factory to produce custom action executors 
+    class TCustomActionFactory { 
+    public: 
+        using TCallback = std::function<TCustomActionExecutor*(TProbe* probe, const TCustomAction& action, TSession* trace)>; 
+        TCustomActionExecutor* Create(TProbe* probe, const TCustomAction& action, TSession* trace) const; 
+        void Register(const TString& name, const TCallback& callback); 
+ 
+    private: 
+        THashMap<TString, TCallback> Callbacks; 
+    }; 
+ 
+} 
diff --git a/library/cpp/lwtrace/event.h b/library/cpp/lwtrace/event.h
index e53a620c45..417ec823d8 100644
--- a/library/cpp/lwtrace/event.h
+++ b/library/cpp/lwtrace/event.h
@@ -1,29 +1,29 @@
-#pragma once
-
+#pragma once 
+ 
 #include "preprocessor.h"
-#include "signature.h"
+#include "signature.h" 
 #include "param_traits.h"
 
 #include <library/cpp/lwtrace/protos/lwtrace.pb.h>
-
-namespace NLWTrace {
-    // Common class for all events
-    struct TEvent {
-        const char* Name;
-        const char* Groups[LWTRACE_MAX_GROUPS + 1];
-        TSignature Signature;
-
-        const char* GetProvider() const {
-            return Groups[0];
-        }
-
-        void ToProtobuf(TEventPb& pb) const {
-            pb.SetName(Name);
-            for (const char* const* gi = Groups; *gi != nullptr; gi++) {
-                pb.AddGroups(*gi);
-            }
-            Signature.ToProtobuf(pb);
-        }
-    };
-
-}
+ 
+namespace NLWTrace { 
+    // Common class for all events 
+    struct TEvent { 
+        const char* Name; 
+        const char* Groups[LWTRACE_MAX_GROUPS + 1]; 
+        TSignature Signature; 
+ 
+        const char* GetProvider() const { 
+            return Groups[0]; 
+        } 
+ 
+        void ToProtobuf(TEventPb& pb) const { 
+            pb.SetName(Name); 
+            for (const char* const* gi = Groups; *gi != nullptr; gi++) { 
+                pb.AddGroups(*gi); 
+            } 
+            Signature.ToProtobuf(pb); 
+        } 
+    }; 
+ 
+} 
diff --git a/library/cpp/lwtrace/example1/lwtrace_example1.cpp b/library/cpp/lwtrace/example1/lwtrace_example1.cpp
index 6b32c405ee..ff6891ec18 100644
--- a/library/cpp/lwtrace/example1/lwtrace_example1.cpp
+++ b/library/cpp/lwtrace/example1/lwtrace_example1.cpp
@@ -1,6 +1,6 @@
 #include <library/cpp/lwtrace/all.h>
 
-#define LWTRACE_EXAMPLE_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES)          \
+#define LWTRACE_EXAMPLE_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES)          \ 
     PROBE(IterationProbe, GROUPS(), TYPES(i32, double), NAMES("n", "result")) \
     /**/
 
@@ -11,7 +11,7 @@ void InitLWTrace() {
     NLWTrace::StartLwtraceFromEnv();
 }
 
-long double Fact(int n) {
+long double Fact(int n) { 
     if (n < 0) {
         ythrow yexception() << "N! is undefined for negative N (" << n << ")";
     }
diff --git a/library/cpp/lwtrace/example2/lwtrace_example2.cpp b/library/cpp/lwtrace/example2/lwtrace_example2.cpp
index 7a4f7a1daf..faf95a7c61 100644
--- a/library/cpp/lwtrace/example2/lwtrace_example2.cpp
+++ b/library/cpp/lwtrace/example2/lwtrace_example2.cpp
@@ -5,18 +5,18 @@
 #include <google/protobuf/text_format.h>
 #include <util/stream/file.h>
 
-#define LWTRACE_EXAMPLE_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES)                           \
-    PROBE(StartupProbe, GROUPS(), TYPES(), NAMES())                                            \
-    PROBE(IterationProbe, GROUPS(), TYPES(i64, double), NAMES("n", "result"))                  \
+#define LWTRACE_EXAMPLE_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES)                           \ 
+    PROBE(StartupProbe, GROUPS(), TYPES(), NAMES())                                            \ 
+    PROBE(IterationProbe, GROUPS(), TYPES(i64, double), NAMES("n", "result"))                  \ 
     PROBE(DurationProbe, GROUPS(), TYPES(ui64, i64, double), NAMES("duration", "n", "result")) \
-    PROBE(ResultProbe, GROUPS(), TYPES(double), NAMES("factN"))                                \
-    PROBE(AfterInputProbe, GROUPS(), TYPES(i32), NAMES("n"))                                   \
+    PROBE(ResultProbe, GROUPS(), TYPES(double), NAMES("factN"))                                \ 
+    PROBE(AfterInputProbe, GROUPS(), TYPES(i32), NAMES("n"))                                   \ 
     /**/
 
 LWTRACE_DECLARE_PROVIDER(LWTRACE_EXAMPLE_PROVIDER)
 LWTRACE_DEFINE_PROVIDER(LWTRACE_EXAMPLE_PROVIDER)
 
-THolder<NLWTrace::TManager> traceManager;
+THolder<NLWTrace::TManager> traceManager; 
 
 struct TConfig {
     bool UnsafeLWTrace;
@@ -24,7 +24,7 @@ struct TConfig {
 };
 
 void InitLWTrace(TConfig& cfg) {
-    traceManager.Reset(new NLWTrace::TManager(*Singleton<NLWTrace::TProbeRegistry>(), cfg.UnsafeLWTrace));
+    traceManager.Reset(new NLWTrace::TManager(*Singleton<NLWTrace::TProbeRegistry>(), cfg.UnsafeLWTrace)); 
 }
 
 void AddLWTraceRequest(TConfig& cfg) {
@@ -36,7 +36,7 @@ void AddLWTraceRequest(TConfig& cfg) {
 
 class TLogReader {
 public:
-    void Push(TThread::TId tid, const NLWTrace::TCyclicLog::TItem& item) {
+    void Push(TThread::TId tid, const NLWTrace::TCyclicLog::TItem& item) { 
         Cout << "tid=" << tid << " probe=" << item.Probe->Event.Name;
         if (item.Timestamp != TInstant::Zero()) {
             Cout << " time=" << item.Timestamp;
@@ -59,7 +59,7 @@ void DisplayLWTraceLog() {
     traceManager->ReadLog("TraceRequest1", reader);
 }
 
-long double Fact(i64 n) {
+long double Fact(i64 n) { 
     if (n < 0) {
         ythrow yexception() << "N! is undefined for negative N (" << n << ")";
     }
@@ -94,14 +94,14 @@ int main(int argc, char** argv) {
     using namespace NLastGetopt;
     TOpts opts = NLastGetopt::TOpts::Default();
     opts.AddLongOption('u', "unsafe-lwtrace",
-                       "allow destructive LWTrace actions")
-        .OptionalValue(ToString(true))
-        .DefaultValue(ToString(false))
-        .StoreResult(&cfg.UnsafeLWTrace);
+                       "allow destructive LWTrace actions") 
+        .OptionalValue(ToString(true)) 
+        .DefaultValue(ToString(false)) 
+        .StoreResult(&cfg.UnsafeLWTrace); 
     opts.AddLongOption('f', "trace-request",
-                       "specify a file containing LWTrace request")
-        .DefaultValue("example_query.tr")
-        .StoreResult(&cfg.TraceRequestPath);
+                       "specify a file containing LWTrace request") 
+        .DefaultValue("example_query.tr") 
+        .StoreResult(&cfg.TraceRequestPath); 
     opts.AddHelpOption('h');
     TOptsParseResult res(&opts, argc, argv);
 
diff --git a/library/cpp/lwtrace/example3/example_query.tr b/library/cpp/lwtrace/example3/example_query.tr
index 1f841b0932..e53c21c02d 100644
--- a/library/cpp/lwtrace/example3/example_query.tr
+++ b/library/cpp/lwtrace/example3/example_query.tr
@@ -4,10 +4,10 @@ Blocks {
        Provider: "LWTRACE_EXAMPLE_PROVIDER"
     }
     Action {
-        CustomAction {
-	    Name: "MyAction"
-            Opts: "/dev/stdout"
-	}
+        CustomAction { 
+	    Name: "MyAction" 
+            Opts: "/dev/stdout" 
+	} 
     }
 }
 
diff --git a/library/cpp/lwtrace/example3/lwtrace_example3.cpp b/library/cpp/lwtrace/example3/lwtrace_example3.cpp
index 4493dc0077..2fa2976a69 100644
--- a/library/cpp/lwtrace/example3/lwtrace_example3.cpp
+++ b/library/cpp/lwtrace/example3/lwtrace_example3.cpp
@@ -1,8 +1,8 @@
 #include <library/cpp/lwtrace/all.h>
 #include <google/protobuf/text_format.h>
-#include "my_action.h"
+#include "my_action.h" 
 
-#define LWTRACE_EXAMPLE_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES)          \
+#define LWTRACE_EXAMPLE_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES)          \ 
     PROBE(IterationProbe, GROUPS(), TYPES(i32, double), NAMES("n", "result")) \
     /**/
 
@@ -10,12 +10,12 @@ LWTRACE_DECLARE_PROVIDER(LWTRACE_EXAMPLE_PROVIDER)
 LWTRACE_DEFINE_PROVIDER(LWTRACE_EXAMPLE_PROVIDER)
 
 void InitLWTrace() {
-    NLWTrace::StartLwtraceFromEnv([=](NLWTrace::TManager& mngr) {
-        mngr.RegisterCustomAction<TMyActionExecutor>();
-    });
+    NLWTrace::StartLwtraceFromEnv([=](NLWTrace::TManager& mngr) { 
+        mngr.RegisterCustomAction<TMyActionExecutor>(); 
+    }); 
 }
 
-long double Fact(int n) {
+long double Fact(int n) { 
     if (n < 0) {
         ythrow yexception() << "N! is undefined for negative N (" << n << ")";
     }
diff --git a/library/cpp/lwtrace/example3/my_action.h b/library/cpp/lwtrace/example3/my_action.h
index 9a04293ba2..80a34ecca8 100644
--- a/library/cpp/lwtrace/example3/my_action.h
+++ b/library/cpp/lwtrace/example3/my_action.h
@@ -1,85 +1,85 @@
-#pragma once
-
+#pragma once 
+ 
 #include <library/cpp/lwtrace/all.h>
-#include <util/stream/file.h>
-
-// Example of custom state for custom executors
-// Holds file for output from TMyActionExecutor
-class TMyFile: public NLWTrace::IResource {
-private:
-    TMutex Mutex;
+#include <util/stream/file.h> 
+ 
+// Example of custom state for custom executors 
+// Holds file for output from TMyActionExecutor 
+class TMyFile: public NLWTrace::IResource { 
+private: 
+    TMutex Mutex; 
     THolder<TUnbufferedFileOutput> File;
-
-public:
-    // Note that this class must have default ctor (it's declared here just for clearness)
-    TMyFile() {
-    }
-
-    // Note that dtor will be called by TManager::Delete() after detachment and destruction of all executors
-    ~TMyFile() {
-    }
-
-    // Some kind of state initialization
-    // Can be called only from executor constructor, and should not be thread-safe
-    void Open(const TString& path) {
-        if (File) {
-            // We must avoid double open because each executor will call Open() on the same object
-            // if the same file was specified in Opts
-            return;
-        }
+ 
+public: 
+    // Note that this class must have default ctor (it's declared here just for clearness) 
+    TMyFile() { 
+    } 
+ 
+    // Note that dtor will be called by TManager::Delete() after detachment and destruction of all executors 
+    ~TMyFile() { 
+    } 
+ 
+    // Some kind of state initialization 
+    // Can be called only from executor constructor, and should not be thread-safe 
+    void Open(const TString& path) { 
+        if (File) { 
+            // We must avoid double open because each executor will call Open() on the same object 
+            // if the same file was specified in Opts 
+            return; 
+        } 
         File.Reset(new TUnbufferedFileOutput(path));
-    }
-
-    // Outputs a line to opened file
-    // Can be called from DoExecute() and must be thread-safe
-    void Output(const TString& line) {
-        Y_VERIFY(File);
-        TGuard<TMutex> g(Mutex); // Because DoExecute() call can come from any thread
-        *File << line << Endl;
-    }
-};
-
-// Action that prints events to specified file
-class TMyActionExecutor: public NLWTrace::TCustomActionExecutor {
-private:
-    TMyFile& File;
-
-public:
-    TMyActionExecutor(NLWTrace::TProbe* probe, const NLWTrace::TCustomAction& action, NLWTrace::TSession* session)
-        : NLWTrace::TCustomActionExecutor(probe, false /* not destructive */)
-        , File(session->Resources().Get<TMyFile>("FileHolder/" + action.GetOpts(0))) // unique state id must include your d
-    {
-        if (action.GetOpts().size() != 1) {
-            yexception() << "wrong number of Opts in MyAction";
-        }
-        File.Open(action.GetOpts(0));
-    }
-
-    static const char* GetActionName() {
-        static const char name[] = "MyAction";
-        return name;
-    }
-
-private:
-    virtual bool DoExecute(NLWTrace::TOrbit&, const NLWTrace::TParams& params) {
-        // Serialize param values to strings
+    } 
+ 
+    // Outputs a line to opened file 
+    // Can be called from DoExecute() and must be thread-safe 
+    void Output(const TString& line) { 
+        Y_VERIFY(File); 
+        TGuard<TMutex> g(Mutex); // Because DoExecute() call can come from any thread 
+        *File << line << Endl; 
+    } 
+}; 
+ 
+// Action that prints events to specified file 
+class TMyActionExecutor: public NLWTrace::TCustomActionExecutor { 
+private: 
+    TMyFile& File; 
+ 
+public: 
+    TMyActionExecutor(NLWTrace::TProbe* probe, const NLWTrace::TCustomAction& action, NLWTrace::TSession* session) 
+        : NLWTrace::TCustomActionExecutor(probe, false /* not destructive */) 
+        , File(session->Resources().Get<TMyFile>("FileHolder/" + action.GetOpts(0))) // unique state id must include your d 
+    { 
+        if (action.GetOpts().size() != 1) { 
+            yexception() << "wrong number of Opts in MyAction"; 
+        } 
+        File.Open(action.GetOpts(0)); 
+    } 
+ 
+    static const char* GetActionName() { 
+        static const char name[] = "MyAction"; 
+        return name; 
+    } 
+ 
+private: 
+    virtual bool DoExecute(NLWTrace::TOrbit&, const NLWTrace::TParams& params) { 
+        // Serialize param values to strings 
         TString paramValues[LWTRACE_MAX_PARAMS];
-        Probe->Event.Signature.SerializeParams(params, paramValues);
-
-        // Generate output line
-        TStringStream ss;
-        ss << "TMyActionExecutor>>> ";
-        ss << Probe->Event.Name;
-        for (ui32 i = 0; i < Probe->Event.Signature.ParamCount; ++i) {
-            ss << " " << Probe->Event.Signature.ParamNames[i] << "=" << paramValues[i];
-        }
-
-        // Write line to file
-        File.Output(ss.Str());
-
-        // Executors can chain if you specify multiple actions in one block (in trace query).
-        // So return true to continue execution of actions for given trace query block (on current triggered event)
-        // or return false if this action is the last for this block
-        return true;
-    }
-};
+        Probe->Event.Signature.SerializeParams(params, paramValues); 
+ 
+        // Generate output line 
+        TStringStream ss; 
+        ss << "TMyActionExecutor>>> "; 
+        ss << Probe->Event.Name; 
+        for (ui32 i = 0; i < Probe->Event.Signature.ParamCount; ++i) { 
+            ss << " " << Probe->Event.Signature.ParamNames[i] << "=" << paramValues[i]; 
+        } 
+ 
+        // Write line to file 
+        File.Output(ss.Str()); 
+ 
+        // Executors can chain if you specify multiple actions in one block (in trace query). 
+        // So return true to continue execution of actions for given trace query block (on current triggered event) 
+        // or return false if this action is the last for this block 
+        return true; 
+    } 
+}; 
diff --git a/library/cpp/lwtrace/example3/start_with_query.sh b/library/cpp/lwtrace/example3/start_with_query.sh
index 5cd221856f..09f4395f7c 100755
--- a/library/cpp/lwtrace/example3/start_with_query.sh
+++ b/library/cpp/lwtrace/example3/start_with_query.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
-echo "Executing program with following trace query:"
-cat example_query.tr
-echo -n "Press any key to start program"
-read
-LWTRACE="example_query.tr" ./lwtrace-example3
+echo "Executing program with following trace query:" 
+cat example_query.tr 
+echo -n "Press any key to start program" 
+read 
+LWTRACE="example_query.tr" ./lwtrace-example3 
diff --git a/library/cpp/lwtrace/example3/ya.make b/library/cpp/lwtrace/example3/ya.make
index c5b31586e9..e3a16da2b2 100644
--- a/library/cpp/lwtrace/example3/ya.make
+++ b/library/cpp/lwtrace/example3/ya.make
@@ -1,9 +1,9 @@
-PROGRAM(lwtrace-example3)
+PROGRAM(lwtrace-example3) 
 
-OWNER(serxa)
+OWNER(serxa) 
 
 SRCS(
-    lwtrace_example3.cpp
+    lwtrace_example3.cpp 
 )
 
 PEERDIR(
diff --git a/library/cpp/lwtrace/example4/example_query.tr b/library/cpp/lwtrace/example4/example_query.tr
index 46cd25ce91..54441f9082 100644
--- a/library/cpp/lwtrace/example4/example_query.tr
+++ b/library/cpp/lwtrace/example4/example_query.tr
@@ -1,6 +1,6 @@
 Blocks {
    ProbeDesc {
-       Name: "BackTrack"
+       Name: "BackTrack" 
        Provider: "LWTRACE_EXAMPLE_PROVIDER"
     }
     Action {
diff --git a/library/cpp/lwtrace/example4/lwtrace_example4.cpp b/library/cpp/lwtrace/example4/lwtrace_example4.cpp
index 7b55a07c75..1e99923d22 100644
--- a/library/cpp/lwtrace/example4/lwtrace_example4.cpp
+++ b/library/cpp/lwtrace/example4/lwtrace_example4.cpp
@@ -1,37 +1,37 @@
 #include <library/cpp/lwtrace/all.h>
 
-#define LWTRACE_EXAMPLE_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES)     \
-    PROBE(BackTrack, GROUPS(), TYPES(NLWTrace::TSymbol), NAMES("frame")) \
+#define LWTRACE_EXAMPLE_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES)     \ 
+    PROBE(BackTrack, GROUPS(), TYPES(NLWTrace::TSymbol), NAMES("frame")) \ 
     /**/
 
 LWTRACE_DECLARE_PROVIDER(LWTRACE_EXAMPLE_PROVIDER)
 LWTRACE_DEFINE_PROVIDER(LWTRACE_EXAMPLE_PROVIDER)
 
-LWTRACE_USING(LWTRACE_EXAMPLE_PROVIDER);
-
-#define MY_BACKTRACK() LWPROBE(BackTrack, LWTRACE_LOCATION_SYMBOL)
-
+LWTRACE_USING(LWTRACE_EXAMPLE_PROVIDER); 
+ 
+#define MY_BACKTRACK() LWPROBE(BackTrack, LWTRACE_LOCATION_SYMBOL) 
+ 
 void InitLWTrace() {
     NLWTrace::StartLwtraceFromEnv();
 }
 
-long double Fact(int n) {
-    MY_BACKTRACK();
+long double Fact(int n) { 
+    MY_BACKTRACK(); 
     if (n < 0) {
-        MY_BACKTRACK();
+        MY_BACKTRACK(); 
         ythrow yexception() << "N! is undefined for negative N (" << n << ")";
     }
     double result = 1;
     for (; n > 1; --n) {
-        MY_BACKTRACK();
+        MY_BACKTRACK(); 
         result *= n;
     }
-    MY_BACKTRACK();
+    MY_BACKTRACK(); 
     return result;
 }
 
 void FactorialCalculator() {
-    MY_BACKTRACK();
+    MY_BACKTRACK(); 
     i32 n;
     Cout << "Enter a number: ";
     TString str;
@@ -42,8 +42,8 @@ void FactorialCalculator() {
 
 int main() {
     InitLWTrace();
-    MY_BACKTRACK();
+    MY_BACKTRACK(); 
     FactorialCalculator();
-    MY_BACKTRACK();
+    MY_BACKTRACK(); 
     return 0;
 }
diff --git a/library/cpp/lwtrace/example4/start_with_query.sh b/library/cpp/lwtrace/example4/start_with_query.sh
index 5bc195c1ae..17cf93f3b0 100755
--- a/library/cpp/lwtrace/example4/start_with_query.sh
+++ b/library/cpp/lwtrace/example4/start_with_query.sh
@@ -1,3 +1,3 @@
 #!/bin/bash
 export LWTRACE="example_query.tr"
-./lwtrace-example4
+./lwtrace-example4 
diff --git a/library/cpp/lwtrace/example4/ya.make b/library/cpp/lwtrace/example4/ya.make
index a3004340a8..22dd209068 100644
--- a/library/cpp/lwtrace/example4/ya.make
+++ b/library/cpp/lwtrace/example4/ya.make
@@ -1,9 +1,9 @@
-PROGRAM(lwtrace-example4)
+PROGRAM(lwtrace-example4) 
 
-OWNER(serxa)
+OWNER(serxa) 
 
 SRCS(
-    lwtrace_example4.cpp
+    lwtrace_example4.cpp 
 )
 
 PEERDIR(
diff --git a/library/cpp/lwtrace/example5/example_query.tr b/library/cpp/lwtrace/example5/example_query.tr
index 90887d4ddf..34f872d7ee 100644
--- a/library/cpp/lwtrace/example5/example_query.tr
+++ b/library/cpp/lwtrace/example5/example_query.tr
@@ -1,9 +1,9 @@
-Blocks {
-   ProbeDesc {
-       Group: "LWTRACE_EXAMPLE_PROVIDER"
-    }
-    Action {
-        PrintToStderrAction { }
-    }
-}
-
+Blocks { 
+   ProbeDesc { 
+       Group: "LWTRACE_EXAMPLE_PROVIDER" 
+    } 
+    Action { 
+        PrintToStderrAction { } 
+    } 
+} 
+ 
diff --git a/library/cpp/lwtrace/example5/lwtrace_example5.cpp b/library/cpp/lwtrace/example5/lwtrace_example5.cpp
index 1c324473c2..3a5e3def30 100644
--- a/library/cpp/lwtrace/example5/lwtrace_example5.cpp
+++ b/library/cpp/lwtrace/example5/lwtrace_example5.cpp
@@ -1,30 +1,30 @@
 #include <library/cpp/lwtrace/all.h>
 #include <library/cpp/lwtrace/lwprobe.h>
-
-template <ui64 N>
-ui64 Fact() {
+ 
+template <ui64 N> 
+ui64 Fact() { 
     ui64 result = N * Fact<N - 1>();
-
+ 
 #ifndef LWTRACE_DISABLE
-    // Note that probe is create on the first pass
-    // LWTRACE_DECLARE_PROVIDER and LWTRACE_DEFINE_PROVIDER are not needed
-    // (Provider is created implicitly)
-    static NLWTrace::TLWProbe<ui64> factProbe(
-        "LWTRACE_EXAMPLE_PROVIDER", "FactProbe_" + ToString(N), {}, {"result"});
-
-    LWPROBE_OBJ(factProbe, result);
+    // Note that probe is create on the first pass 
+    // LWTRACE_DECLARE_PROVIDER and LWTRACE_DEFINE_PROVIDER are not needed 
+    // (Provider is created implicitly) 
+    static NLWTrace::TLWProbe<ui64> factProbe( 
+        "LWTRACE_EXAMPLE_PROVIDER", "FactProbe_" + ToString(N), {}, {"result"}); 
+ 
+    LWPROBE_OBJ(factProbe, result); 
 #endif // LWTRACE_DISABLE
-    return result;
-}
-
-template <>
-ui64 Fact<0>() {
-    return 1;
-}
-
-int main() {
+    return result; 
+} 
+ 
+template <> 
+ui64 Fact<0>() { 
+    return 1; 
+} 
+ 
+int main() { 
     Fact<6>();                       // First run is required to create probes we can use later in trace query
-    NLWTrace::StartLwtraceFromEnv(); // parse trace query and create trace session
+    NLWTrace::StartLwtraceFromEnv(); // parse trace query and create trace session 
     Cout << Fact<6>() << Endl;       // actually trigger probes
-    return 0;
-}
+    return 0; 
+} 
diff --git a/library/cpp/lwtrace/example5/start_with_query.sh b/library/cpp/lwtrace/example5/start_with_query.sh
index 4df5e4e47c..9802100f5b 100755
--- a/library/cpp/lwtrace/example5/start_with_query.sh
+++ b/library/cpp/lwtrace/example5/start_with_query.sh
@@ -1,3 +1,3 @@
-#!/bin/bash
-export LWTRACE="example_query.tr"
-./lwtrace-example5
+#!/bin/bash 
+export LWTRACE="example_query.tr" 
+./lwtrace-example5 
diff --git a/library/cpp/lwtrace/example5/ya.make b/library/cpp/lwtrace/example5/ya.make
index 06dd4dc569..04ee4d29f2 100644
--- a/library/cpp/lwtrace/example5/ya.make
+++ b/library/cpp/lwtrace/example5/ya.make
@@ -1,13 +1,13 @@
-PROGRAM(lwtrace-example5)
-
-OWNER(serxa)
-
-SRCS(
-    lwtrace_example5.cpp
-)
-
-PEERDIR(
+PROGRAM(lwtrace-example5) 
+ 
+OWNER(serxa) 
+ 
+SRCS( 
+    lwtrace_example5.cpp 
+) 
+ 
+PEERDIR( 
     library/cpp/lwtrace
-)
-
-END()
+) 
+ 
+END() 
diff --git a/library/cpp/lwtrace/kill_action.cpp b/library/cpp/lwtrace/kill_action.cpp
index 2b74dc4587..dad8b9afa4 100644
--- a/library/cpp/lwtrace/kill_action.cpp
+++ b/library/cpp/lwtrace/kill_action.cpp
@@ -10,12 +10,12 @@
 using namespace NLWTrace;
 using namespace NLWTrace::NPrivate;
 
-bool TKillActionExecutor::DoExecute(TOrbit&, const TParams&) {
+bool TKillActionExecutor::DoExecute(TOrbit&, const TParams&) { 
 #ifdef _win_
     abort();
 #else
     int r = kill(getpid(), SIGABRT);
     Y_VERIFY(r == 0, "kill failed");
-    return true;
+    return true; 
 #endif
 }
diff --git a/library/cpp/lwtrace/kill_action.h b/library/cpp/lwtrace/kill_action.h
index 14da9ffd50..1544e339e1 100644
--- a/library/cpp/lwtrace/kill_action.h
+++ b/library/cpp/lwtrace/kill_action.h
@@ -2,14 +2,14 @@
 
 #include "probe.h"
 
-namespace NLWTrace {
-    namespace NPrivate {
-        class TKillActionExecutor: public IExecutor {
-        public:
-            explicit TKillActionExecutor(const TProbe*) {
-            }
-            bool DoExecute(TOrbit& orbit, const TParams& params) override;
-        };
+namespace NLWTrace { 
+    namespace NPrivate { 
+        class TKillActionExecutor: public IExecutor { 
+        public: 
+            explicit TKillActionExecutor(const TProbe*) { 
+            } 
+            bool DoExecute(TOrbit& orbit, const TParams& params) override; 
+        }; 
 
-    }
-}
+    } 
+} 
diff --git a/library/cpp/lwtrace/log.h b/library/cpp/lwtrace/log.h
index 56981a97f8..b226a1534c 100644
--- a/library/cpp/lwtrace/log.h
+++ b/library/cpp/lwtrace/log.h
@@ -1,906 +1,906 @@
-#pragma once
-
+#pragma once 
+ 
 #include "probe.h"
 
 #include <util/datetime/base.h>
 #include <util/generic/algorithm.h>
 #include <util/generic/deque.h>
-#include <util/generic/noncopyable.h>
-#include <util/generic/vector.h>
+#include <util/generic/noncopyable.h> 
+#include <util/generic/vector.h> 
 #include <util/string/printf.h>
 #include <util/system/atomic.h>
 #include <util/system/hp_timer.h>
-#include <util/system/mutex.h>
-#include <util/system/spinlock.h>
-#include <util/system/thread.h>
+#include <util/system/mutex.h> 
+#include <util/system/spinlock.h> 
+#include <util/system/thread.h> 
 #include <util/system/tls.h>
-
-namespace NLWTrace {
-    // Cyclic buffer that pushes items to its back and pop item from front on overflow
-    template <class TItem>
-    class TCyclicBuffer: public TNonCopyable {
-    private:
-        TVector<TItem> Data;
-        TItem* Front; // Points to the first item (valid iff Size > 0)
-        TItem* Back;  // Points to the last item (valid iff Size > 0)
-        size_t Size;  // Number of items in the buffer
-
-        TItem* First() {
-            return &*Data.begin();
-        }
-
-        TItem* Last() {
-            return &*Data.end();
-        }
-
-        const TItem* First() const {
-            return &*Data.begin();
-        }
-
-        const TItem* Last() const {
-            return &*Data.end();
-        }
-
-    public:
-        explicit TCyclicBuffer(size_t capacity)
-            : Data(capacity)
-            , Size(0)
-        {
-        }
-
-        TItem* Add() {
-            if (Size != 0) {
-                Inc(Back);
-                if (Back == Front) {
-                    Inc(Front); // Forget (pop_front) old items
-                } else {
-                    Size++;
-                }
-            } else {
-                Front = Back = First();
-                Size = 1;
-            }
-            Back->Clear();
-            return Back;
-        }
-
-        TItem* GetFront() {
-            return Front;
-        }
-
-        TItem* GetBack() {
-            return Back;
-        }
-
-        const TItem* GetFront() const {
-            return Front;
-        }
-
-        const TItem* GetBack() const {
-            return Back;
-        }
-
-        size_t GetSize() const {
-            return Size;
-        }
-
-        bool IsFull() const {
-            return Size == Data.size();
-        }
-
-        void Inc(TItem*& it) {
-            it++;
-            if (it == Last()) {
-                it = First();
-            }
-        }
-
-        void Inc(const TItem*& it) const {
-            it++;
-            if (it == Last()) {
-                it = First();
-            }
-        }
-
-        void Destroy() {
-            Data.clear();
-            Size = 0;
-        }
-
-        void Clear() {
-            Size = 0;
-        }
-
-        void Swap(TCyclicBuffer& other) {
-            Data.swap(other.Data);
-            std::swap(Front, other.Front);
-            std::swap(Back, other.Back);
-            std::swap(Size, other.Size);
-        }
-    };
-
-    // Buffer that pushes items to its back and pop item from front on expire
-    template <class TItem>
-    class TDurationBuffer: public TNonCopyable {
-    protected:
-        TDeque<TItem> Data;
-        ui64 StoreDuration;
-        ui8 CleanupCounter = 0;
-
-    public:
-        explicit TDurationBuffer(TDuration duration)
-            : StoreDuration(DurationToCycles(duration))
-        {
-        }
-
-        TItem* Add() {
-            if (!CleanupCounter) {
-                Cleanup();
-                CleanupCounter = 128; // Make cleanup after every 128 additions
-            }
-            CleanupCounter--;
-            Data.emplace_back();
-            return &Data.back();
-        }
-
-        TItem* GetFront() {
-            return &Data.front();
-        }
-
-        TItem* GetBack() {
-            return &Data.back();
-        }
-
-        const TItem* GetFront() const {
-            return &Data.front();
-        }
-
-        const TItem* GetBack() const {
-            return &Data.back();
-        }
-
-        size_t GetSize() const {
-            return Data.size();
-        }
-
-        bool Empty() const {
-            return Data.empty();
-        }
-
-        void Destroy() {
-            Data.clear();
-        }
-
-        void Swap(TDurationBuffer& other) {
-            Data.swap(other.Data);
-            std::swap(StoreDuration, other.StoreDuration);
-        }
-
-    private:
-        void Cleanup() {
-            ui64 cutoff = GetCycleCount();
-            if (cutoff > StoreDuration) {
-                cutoff -= StoreDuration;
-                while (!Data.empty() && Data.front().GetTimestampCycles() < cutoff) {
-                    Data.pop_front();
-                }
-            }
-        }
-    };
-
-    struct TLogItem {
-        TProbe* Probe = nullptr;
-        TParams Params;
-        size_t SavedParamsCount;
-        TInstant Timestamp;
-        ui64 TimestampCycles;
-
-        TLogItem() {
-        }
-
-        TLogItem(const TLogItem& other)
-            : Probe(other.Probe)
-            , SavedParamsCount(other.SavedParamsCount)
-            , Timestamp(other.Timestamp)
-            , TimestampCycles(other.TimestampCycles)
-        {
-            Clone(other);
-        }
-
-        ~TLogItem() {
-            Destroy();
-        }
-
-        TLogItem& operator=(const TLogItem& other) {
-            Destroy();
-            Probe = other.Probe;
-            SavedParamsCount = other.SavedParamsCount;
-            Timestamp = other.Timestamp;
-            TimestampCycles = other.TimestampCycles;
-            Clone(other);
-            return *this;
-        }
-
-        void Clear() {
-            Destroy();
-            Probe = nullptr;
-        }
-
-        void ToProtobuf(TLogItemPb& pb) const {
-            pb.SetName(Probe->Event.Name);
-            pb.SetProvider(Probe->Event.GetProvider());
-            if (SavedParamsCount > 0) {
-                TString paramValues[LWTRACE_MAX_PARAMS];
-                Probe->Event.Signature.SerializeParams(Params, paramValues);
-                for (size_t pi = 0; pi < SavedParamsCount; pi++) {
-                    pb.AddParams(paramValues[pi]);
-                }
-            }
-            pb.SetTimestamp(Timestamp.GetValue());
-            pb.SetTimestampCycles(TimestampCycles);
-        }
-
-        TTypedParam GetParam(const TString& param) const {
-            if (SavedParamsCount == 0) {
-                return TTypedParam();
-            } else {
-                size_t idx = Probe->Event.Signature.FindParamIndex(param);
-                if (idx >= SavedParamsCount) { // Also covers idx=-1 case (not found)
-                    return TTypedParam();
-                } else {
-                    EParamTypePb type = ParamTypeToProtobuf(Probe->Event.Signature.ParamTypes[idx]);
-                    return TTypedParam(type, Params.Param[idx]);
-                }
-            }
-        }
-
-        ui64 GetTimestampCycles() const {
-            return TimestampCycles;
-        }
-
-    private:
-        void Clone(const TLogItem& other) {
-            if (Probe && SavedParamsCount > 0) {
-                Probe->Event.Signature.CloneParams(Params, other.Params);
-            }
-        }
-
-        void Destroy() {
-            if (Probe && SavedParamsCount > 0) {
-                Probe->Event.Signature.DestroyParams(Params);
-            }
-        }
-    };
-
-    struct TTrackLog {
-        struct TItem : TLogItem {
-            TThread::TId ThreadId;
-
+ 
+namespace NLWTrace { 
+    // Cyclic buffer that pushes items to its back and pop item from front on overflow 
+    template <class TItem> 
+    class TCyclicBuffer: public TNonCopyable { 
+    private: 
+        TVector<TItem> Data; 
+        TItem* Front; // Points to the first item (valid iff Size > 0) 
+        TItem* Back;  // Points to the last item (valid iff Size > 0) 
+        size_t Size;  // Number of items in the buffer 
+ 
+        TItem* First() { 
+            return &*Data.begin(); 
+        } 
+ 
+        TItem* Last() { 
+            return &*Data.end(); 
+        } 
+ 
+        const TItem* First() const { 
+            return &*Data.begin(); 
+        } 
+ 
+        const TItem* Last() const { 
+            return &*Data.end(); 
+        } 
+ 
+    public: 
+        explicit TCyclicBuffer(size_t capacity) 
+            : Data(capacity) 
+            , Size(0) 
+        { 
+        } 
+ 
+        TItem* Add() { 
+            if (Size != 0) { 
+                Inc(Back); 
+                if (Back == Front) { 
+                    Inc(Front); // Forget (pop_front) old items 
+                } else { 
+                    Size++; 
+                } 
+            } else { 
+                Front = Back = First(); 
+                Size = 1; 
+            } 
+            Back->Clear(); 
+            return Back; 
+        } 
+ 
+        TItem* GetFront() { 
+            return Front; 
+        } 
+ 
+        TItem* GetBack() { 
+            return Back; 
+        } 
+ 
+        const TItem* GetFront() const { 
+            return Front; 
+        } 
+ 
+        const TItem* GetBack() const { 
+            return Back; 
+        } 
+ 
+        size_t GetSize() const { 
+            return Size; 
+        } 
+ 
+        bool IsFull() const { 
+            return Size == Data.size(); 
+        } 
+ 
+        void Inc(TItem*& it) { 
+            it++; 
+            if (it == Last()) { 
+                it = First(); 
+            } 
+        } 
+ 
+        void Inc(const TItem*& it) const { 
+            it++; 
+            if (it == Last()) { 
+                it = First(); 
+            } 
+        } 
+ 
+        void Destroy() { 
+            Data.clear(); 
+            Size = 0; 
+        } 
+ 
+        void Clear() { 
+            Size = 0; 
+        } 
+ 
+        void Swap(TCyclicBuffer& other) { 
+            Data.swap(other.Data); 
+            std::swap(Front, other.Front); 
+            std::swap(Back, other.Back); 
+            std::swap(Size, other.Size); 
+        } 
+    }; 
+ 
+    // Buffer that pushes items to its back and pop item from front on expire 
+    template <class TItem> 
+    class TDurationBuffer: public TNonCopyable { 
+    protected: 
+        TDeque<TItem> Data; 
+        ui64 StoreDuration; 
+        ui8 CleanupCounter = 0; 
+ 
+    public: 
+        explicit TDurationBuffer(TDuration duration) 
+            : StoreDuration(DurationToCycles(duration)) 
+        { 
+        } 
+ 
+        TItem* Add() { 
+            if (!CleanupCounter) { 
+                Cleanup(); 
+                CleanupCounter = 128; // Make cleanup after every 128 additions 
+            } 
+            CleanupCounter--; 
+            Data.emplace_back(); 
+            return &Data.back(); 
+        } 
+ 
+        TItem* GetFront() { 
+            return &Data.front(); 
+        } 
+ 
+        TItem* GetBack() { 
+            return &Data.back(); 
+        } 
+ 
+        const TItem* GetFront() const { 
+            return &Data.front(); 
+        } 
+ 
+        const TItem* GetBack() const { 
+            return &Data.back(); 
+        } 
+ 
+        size_t GetSize() const { 
+            return Data.size(); 
+        } 
+ 
+        bool Empty() const { 
+            return Data.empty(); 
+        } 
+ 
+        void Destroy() { 
+            Data.clear(); 
+        } 
+ 
+        void Swap(TDurationBuffer& other) { 
+            Data.swap(other.Data); 
+            std::swap(StoreDuration, other.StoreDuration); 
+        } 
+ 
+    private: 
+        void Cleanup() { 
+            ui64 cutoff = GetCycleCount(); 
+            if (cutoff > StoreDuration) { 
+                cutoff -= StoreDuration; 
+                while (!Data.empty() && Data.front().GetTimestampCycles() < cutoff) { 
+                    Data.pop_front(); 
+                } 
+            } 
+        } 
+    }; 
+ 
+    struct TLogItem { 
+        TProbe* Probe = nullptr; 
+        TParams Params; 
+        size_t SavedParamsCount; 
+        TInstant Timestamp; 
+        ui64 TimestampCycles; 
+ 
+        TLogItem() { 
+        } 
+ 
+        TLogItem(const TLogItem& other) 
+            : Probe(other.Probe) 
+            , SavedParamsCount(other.SavedParamsCount) 
+            , Timestamp(other.Timestamp) 
+            , TimestampCycles(other.TimestampCycles) 
+        { 
+            Clone(other); 
+        } 
+ 
+        ~TLogItem() { 
+            Destroy(); 
+        } 
+ 
+        TLogItem& operator=(const TLogItem& other) { 
+            Destroy(); 
+            Probe = other.Probe; 
+            SavedParamsCount = other.SavedParamsCount; 
+            Timestamp = other.Timestamp; 
+            TimestampCycles = other.TimestampCycles; 
+            Clone(other); 
+            return *this; 
+        } 
+ 
+        void Clear() { 
+            Destroy(); 
+            Probe = nullptr; 
+        } 
+ 
+        void ToProtobuf(TLogItemPb& pb) const { 
+            pb.SetName(Probe->Event.Name); 
+            pb.SetProvider(Probe->Event.GetProvider()); 
+            if (SavedParamsCount > 0) { 
+                TString paramValues[LWTRACE_MAX_PARAMS]; 
+                Probe->Event.Signature.SerializeParams(Params, paramValues); 
+                for (size_t pi = 0; pi < SavedParamsCount; pi++) { 
+                    pb.AddParams(paramValues[pi]); 
+                } 
+            } 
+            pb.SetTimestamp(Timestamp.GetValue()); 
+            pb.SetTimestampCycles(TimestampCycles); 
+        } 
+ 
+        TTypedParam GetParam(const TString& param) const { 
+            if (SavedParamsCount == 0) { 
+                return TTypedParam(); 
+            } else { 
+                size_t idx = Probe->Event.Signature.FindParamIndex(param); 
+                if (idx >= SavedParamsCount) { // Also covers idx=-1 case (not found) 
+                    return TTypedParam(); 
+                } else { 
+                    EParamTypePb type = ParamTypeToProtobuf(Probe->Event.Signature.ParamTypes[idx]); 
+                    return TTypedParam(type, Params.Param[idx]); 
+                } 
+            } 
+        } 
+ 
+        ui64 GetTimestampCycles() const { 
+            return TimestampCycles; 
+        } 
+ 
+    private: 
+        void Clone(const TLogItem& other) { 
+            if (Probe && SavedParamsCount > 0) { 
+                Probe->Event.Signature.CloneParams(Params, other.Params); 
+            } 
+        } 
+ 
+        void Destroy() { 
+            if (Probe && SavedParamsCount > 0) { 
+                Probe->Event.Signature.DestroyParams(Params); 
+            } 
+        } 
+    }; 
+ 
+    struct TTrackLog { 
+        struct TItem : TLogItem { 
+            TThread::TId ThreadId; 
+ 
             TItem() = default;
-
-            TItem(TThread::TId tid, const TLogItem& item)
-                : TLogItem(item)
-                , ThreadId(tid)
-            {
-            }
-        };
-
-        using TItems = TVector<TItem>;
-        TItems Items;
-        bool Truncated = false;
-        ui64 Id = 0;
-
-        void Clear() {
-            Items.clear();
-            Truncated = false;
-        }
-
-        ui64 GetTimestampCycles() const {
-            return Items.empty() ? 0 : Items.front().GetTimestampCycles();
-        }
-    };
-
-    // Log that uses per-thread cyclic buffers to store items
-    template <class T>
-    class TCyclicLogImpl: public TNonCopyable {
-    public:
-        using TLog = TCyclicLogImpl;
-        using TItem = T;
-
-    private:
-        using TBuffer = TCyclicBuffer<TItem>;
-
-        class TStorage {
-        private:
-            // Data that can be accessed in lock-free way from reader/writer
-            TAtomic Writers = 0;
-            mutable TBuffer* volatile CurBuffer = nullptr;
-
-            // Data that can be accessed only from reader
-            // NOTE: multiple readers are serialized by TCyclicLogImpl::Lock
-            mutable TBuffer* OldBuffer = nullptr;
-            mutable TBuffer* NewBuffer = nullptr;
-
-            TLog* volatile Log = nullptr;
-
-            TThread::TId ThreadId = 0;
-            TAtomic EventsCount = 0;
-
-        public:
-            TStorage() {
-            }
-
-            explicit TStorage(TLog* log)
-                : CurBuffer(new TBuffer(log->GetCapacity()))
-                , OldBuffer(new TBuffer(log->GetCapacity()))
-                , NewBuffer(new TBuffer(log->GetCapacity()))
-                , Log(log)
-                , ThreadId(TThread::CurrentThreadId())
-            {
-                Log->RegisterThread(this);
-            }
-
-            ~TStorage() {
-                if (TLog* log = AtomicSwap(&Log, nullptr)) {
-                    AtomicBarrier(); // Serialize `Log' and TCyclicLogImpl::Lock memory order
-                    // NOTE: the following function swaps `this' with `new TStorage()'
-                    log->UnregisterThreadAndMakeOrphan(this);
-                } else {
-                    // NOTE: `Log' can be nullptr if either it is orphan storage or TryDismiss() succeeded
-                    // NOTE: in both cases it is ok to call these deletes
-                    delete CurBuffer;
-                    delete OldBuffer;
-                    delete NewBuffer;
-                }
-            }
-
-            bool TryDismiss() {
-                // TCyclicLogImpl::Lock implied (no readers)
-                if (TLog* log = AtomicSwap(&Log, nullptr)) {
-                    TBuffer* curBuffer = AtomicSwap(&CurBuffer, nullptr);
-                    WaitForWriters();
-                    // At this point we guarantee that there is no and wont be active writer
-                    delete curBuffer;
-                    delete OldBuffer;
-                    delete NewBuffer;
-                    OldBuffer = nullptr;
-                    NewBuffer = nullptr;
-                    return true;
-                } else {
-                    // ~TStorage() is in progress
-                    return false;
-                }
-            }
-
-            void WaitForWriters() const {
-                while (AtomicGet(Writers) > 0) {
-                    SpinLockPause();
-                }
-            }
-
-            TThread::TId GetThreadId() const {
-                // TCyclicLogImpl::Lock implied (no readers)
-                return ThreadId;
-            }
-
-            size_t GetEventsCount() const {
-                // TCyclicLogImpl::Lock implied (no readers)
-                return AtomicGet(EventsCount);
-            }
-
-            void Swap(TStorage& other) {
-                // TCyclicLogImpl::Lock implied (no readers)
-                std::swap(CurBuffer, other.CurBuffer);
-                std::swap(OldBuffer, other.OldBuffer);
-                std::swap(NewBuffer, other.NewBuffer);
-                std::swap(Log, other.Log);
-                std::swap(ThreadId, other.ThreadId);
-                std::swap(EventsCount, other.EventsCount);
-            }
-
-            TBuffer* StartWriter() {
-                AtomicIncrement(Writers);
-                return const_cast<TBuffer*>(AtomicGet(CurBuffer));
-            }
-
-            void StopWriter() {
-                AtomicDecrement(Writers);
-            }
-
-            void IncEventsCount() {
-                AtomicIncrement(EventsCount);
-            }
-
-            template <class TReader>
-            void ReadItems(TReader& r) const {
-                // TCyclicLogImpl::Lock implied
-                NewBuffer = AtomicSwap(&CurBuffer, NewBuffer);
-                WaitForWriters();
-
-                // Merge new buffer into old buffer
-                if (NewBuffer->IsFull()) {
-                    std::swap(NewBuffer, OldBuffer);
-                } else {
-                    if (NewBuffer->GetSize() > 0) {
-                        for (const TItem *i = NewBuffer->GetFront(), *e = NewBuffer->GetBack();; NewBuffer->Inc(i)) {
-                            TItem* oldSlot = OldBuffer->Add();
-                            *oldSlot = *i;
-                            if (i == e) {
-                                break;
-                            }
-                        }
-                    }
-                }
-
-                NewBuffer->Clear();
-
-                // Iterate over old buffer
-                if (OldBuffer->GetSize() > 0) {
-                    for (const TItem *i = OldBuffer->GetFront(), *e = OldBuffer->GetBack();; OldBuffer->Inc(i)) {
-                        r.Push(ThreadId, *i);
-                        if (i == e) {
-                            break;
-                        }
-                    }
-                }
-            }
-        };
-
-        size_t Capacity;
-        Y_THREAD(TStorage)
-        PerThreadStorage;
-        TSpinLock Lock;
-        // If thread exits its storage is destroyed, so we move it into OrphanStorages before destruction
-        TVector<TAtomicSharedPtr<TStorage>> OrphanStorages;
-        typedef TVector<TStorage*> TStoragesVec;
-        TStoragesVec StoragesVec;
-        TAtomic ThreadsCount;
-
-    public:
-        explicit TCyclicLogImpl(size_t capacity)
-            : Capacity(capacity)
-            , PerThreadStorage(this)
-            , ThreadsCount(0)
-        {
-        }
-
-        ~TCyclicLogImpl() {
-            for (bool again = true; again;) {
-                TGuard<TSpinLock> g(Lock);
-                AtomicBarrier(); // Serialize `storage->Log' and Lock memory order
-                again = false;
-                while (!StoragesVec.empty()) {
-                    TStorage* storage = StoragesVec.back();
-                    // TStorage destructor can be called when TCyclicLogImpl is already destructed
-                    // So we ensure this does not lead to problems
-                    // NOTE: Y_THREAD(TStorage) destructs TStorage object for a specific thread only on that thread exit
-                    // NOTE: this issue can lead to memleaks if threads never exit and many TCyclicLogImpl are created
-                    if (storage->TryDismiss()) {
-                        StoragesVec.pop_back();
-                    } else {
-                        // Rare case when another thread is running ~TStorage() -- let it finish
-                        again = true;
-                        SpinLockPause();
-                        break;
-                    }
-                }
-            }
-        }
-
-        size_t GetCapacity() const {
-            return Capacity;
-        }
-
-        size_t GetEventsCount() const {
-            size_t events = 0;
-            TGuard<TSpinLock> g(Lock);
-            for (auto i : StoragesVec) {
-                events += i->GetEventsCount();
-            }
-            for (const auto& orphanStorage : OrphanStorages) {
-                events += orphanStorage->GetEventsCount();
-            }
-            return events;
-        }
-
-        size_t GetThreadsCount() const {
-            return AtomicGet(ThreadsCount);
-        }
-
-        void RegisterThread(TStorage* storage) {
-            TGuard<TSpinLock> g(Lock);
-            StoragesVec.push_back(storage);
-            AtomicIncrement(ThreadsCount);
-        }
-
-        void UnregisterThreadAndMakeOrphan(TStorage* storage) {
-            TGuard<TSpinLock> g(Lock);
-            // `storage' writers are not possible at this scope because
-            // UnregisterThreadAndMakeOrphan is only called from exiting threads.
-            // `storage' readers are not possible at this scope due to Lock guard.
-
-            Erase(StoragesVec, storage);
-            TAtomicSharedPtr<TStorage> orphan(new TStorage());
-            orphan->Swap(*storage); // Swap is required because we cannot take ownership from Y_THREAD(TStorage) object
-            OrphanStorages.push_back(orphan);
-        }
-
-        template <class TReader>
-        void ReadThreads(TReader& r) const {
-            TGuard<TSpinLock> g(Lock);
-            for (auto i : StoragesVec) {
-                r.PushThread(i->GetThreadId());
-            }
-            for (const auto& orphanStorage : OrphanStorages) {
-                r.PushThread(orphanStorage->GetThreadId());
-            }
-        }
-
-        template <class TReader>
-        void ReadItems(TReader& r) const {
-            TGuard<TSpinLock> g(Lock);
-            for (auto i : StoragesVec) {
-                i->ReadItems(r);
-            }
-            for (const auto& orphanStorage : OrphanStorages) {
-                orphanStorage->ReadItems(r);
-            }
-        }
-
-        class TAccessor {
-        private:
-            TStorage& Storage;
-            TBuffer* Buffer;
-
-        public:
-            explicit TAccessor(TLog& log)
-                : Storage(log.PerThreadStorage.Get())
-                , Buffer(Storage.StartWriter())
-            {
-            }
-
-            ~TAccessor() {
-                Storage.StopWriter();
-            }
-
-            TItem* Add() {
-                if (Buffer) {
-                    Storage.IncEventsCount();
-                    return Buffer->Add();
-                } else {
-                    // TStorage detached from trace due to trace destruction
-                    // so we should not try log anything
-                    return nullptr;
-                }
-            }
-        };
-
-        friend class TAccessor;
-    };
-
-    using TCyclicLog = TCyclicLogImpl<TLogItem>;
-    using TCyclicDepot = TCyclicLogImpl<TTrackLog>;
-
-    // Log that uses per-thread buffers to store items up to given duration
-    template <class T>
-    class TDurationLogImpl: public TNonCopyable {
-    public:
-        using TLog = TDurationLogImpl;
-        using TItem = T;
-
-        class TAccessor;
-        friend class TAccessor;
-        class TAccessor: public TGuard<TSpinLock> {
-        private:
-            TLog& Log;
-
-        public:
-            explicit TAccessor(TLog& log)
-                : TGuard<TSpinLock>(log.PerThreadStorage.Get().Lock)
-                , Log(log)
-            {
-            }
-
-            TItem* Add() {
-                return Log.PerThreadStorage.Get().Add();
-            }
-        };
-
-    private:
-        class TStorage: public TDurationBuffer<TItem> {
-        private:
-            TLog* Log;
-            TThread::TId ThreadId;
-            ui64 EventsCount;
-
-        public:
-            TSpinLock Lock;
-
-            TStorage()
-                : TDurationBuffer<TItem>(TDuration::Zero())
-                , Log(nullptr)
-                , ThreadId(0)
-                , EventsCount(0)
-            {
-            }
-
-            explicit TStorage(TLog* log)
-                : TDurationBuffer<TItem>(log->GetDuration())
-                , Log(log)
-                , ThreadId(TThread::CurrentThreadId())
-                , EventsCount(0)
-            {
-                Log->RegisterThread(this);
-            }
-
-            ~TStorage() {
-                if (Log) {
-                    Log->UnregisterThread(this);
-                }
-            }
-
-            void DetachFromTraceLog() {
-                Log = nullptr;
-            }
-
-            TItem* Add() {
-                EventsCount++;
-                return TDurationBuffer<TItem>::Add();
-            }
-
-            bool Expired(ui64 now) const {
-                return this->Empty() ? true : this->GetBack()->GetTimestampCycles() + this->StoreDuration < now;
-            }
-
-            TThread::TId GetThreadId() const {
-                return ThreadId;
-            }
-
-            size_t GetEventsCount() const {
-                return EventsCount;
-            }
-
-            void Swap(TStorage& other) {
-                TDurationBuffer<TItem>::Swap(other);
-                std::swap(Log, other.Log);
-                std::swap(ThreadId, other.ThreadId);
-                std::swap(EventsCount, other.EventsCount);
-            }
-
-            template <class TReader>
-            void ReadItems(ui64 now, ui64 duration, TReader& r) const {
-                TGuard<TSpinLock> g(Lock);
-                if (now > duration) {
-                    ui64 cutoff = now - duration;
-                    for (const TItem& item : this->Data) {
-                        if (item.GetTimestampCycles() >= cutoff) {
-                            r.Push(ThreadId, item);
-                        }
-                    }
-                } else {
-                    for (const TItem& item : this->Data) {
-                        r.Push(ThreadId, item);
-                    }
-                }
-            }
-        };
-
-        TDuration Duration;
-        Y_THREAD(TStorage)
-        PerThreadStorage;
-        TSpinLock Lock;
-        typedef TVector<TAtomicSharedPtr<TStorage>> TOrphanStorages;
-        TOrphanStorages OrphanStorages; // if thread exits its storage is destroyed, so we move it into OrphanStorages before destruction
-        TAtomic OrphanStoragesEventsCount = 0;
-        typedef TVector<TStorage*> TStoragesVec;
-        TStoragesVec StoragesVec;
-        TAtomic ThreadsCount;
-
-    public:
-        explicit TDurationLogImpl(TDuration duration)
-            : Duration(duration)
-            , PerThreadStorage(this)
-            , ThreadsCount(0)
-        {
-        }
-
-        ~TDurationLogImpl() {
-            for (auto storage : StoragesVec) {
-                // NOTE: Y_THREAD(TStorage) destructs TStorage object for a specific thread only on that thread exit
-                // NOTE: this issue can lead to memleaks if threads never exit and many TTraceLogs are created
-                storage->Destroy();
-
-                // TraceLogStorage destructor can be called when TTraceLog is already destructed
-                // So we ensure this does not lead to problems
-                storage->DetachFromTraceLog();
-            }
-        }
-
-        TDuration GetDuration() const {
-            return Duration;
-        }
-
-        size_t GetEventsCount() const {
-            size_t events = AtomicGet(OrphanStoragesEventsCount);
-            TGuard<TSpinLock> g(Lock);
-            for (auto i : StoragesVec) {
-                events += i->GetEventsCount();
-            }
-            return events;
-        }
-
-        size_t GetThreadsCount() const {
-            return AtomicGet(ThreadsCount);
-        }
-
-        void RegisterThread(TStorage* storage) {
-            TGuard<TSpinLock> g(Lock);
-            StoragesVec.push_back(storage);
-            AtomicIncrement(ThreadsCount);
-        }
-
-        void UnregisterThread(TStorage* storage) {
-            TGuard<TSpinLock> g(Lock);
-            for (auto i = StoragesVec.begin(), e = StoragesVec.end(); i != e; ++i) {
-                if (*i == storage) {
-                    StoragesVec.erase(i);
-                    break;
-                }
-            }
-            TAtomicSharedPtr<TStorage> orphan(new TStorage());
-            orphan->Swap(*storage);
-            orphan->DetachFromTraceLog();
-            AtomicAdd(OrphanStoragesEventsCount, orphan->GetEventsCount());
-            OrphanStorages.push_back(orphan);
-            CleanOrphanStorages(GetCycleCount());
-        }
-
-        void CleanOrphanStorages(ui64 now) {
-            EraseIf(OrphanStorages, [=](const TAtomicSharedPtr<TStorage>& ptr) {
-                const TStorage& storage = *ptr;
-                return storage.Expired(now);
-            });
-        }
-
-        template <class TReader>
-        void ReadThreads(TReader& r) const {
-            TGuard<TSpinLock> g(Lock);
-            for (TStorage* i : StoragesVec) {
-                r.PushThread(i->GetThreadId());
-            }
-            for (const auto& orphanStorage : OrphanStorages) {
-                r.PushThread(orphanStorage->GetThreadId());
-            }
-        }
-
-        template <class TReader>
-        void ReadItems(ui64 now, ui64 duration, TReader& r) const {
-            TGuard<TSpinLock> g(Lock);
-            for (TStorage* storage : StoragesVec) {
-                storage->ReadItems(now, duration, r);
-            }
-            for (const auto& orphanStorage : OrphanStorages) {
-                orphanStorage->ReadItems(now, duration, r);
-            }
-        }
-    };
-
-    using TDurationLog = TDurationLogImpl<TLogItem>;
-    using TDurationDepot = TDurationLogImpl<TTrackLog>;
-
-    // Log that uses one cyclic buffer to store items
-    // Each item is a result of execution of some event
-    class TInMemoryLog: public TNonCopyable {
-    public:
-        struct TItem {
-            const TEvent* Event;
-            TParams Params;
-            TInstant Timestamp;
-
-            TItem()
-                : Event(nullptr)
-            {
-            }
-
-            TItem(const TItem& other)
-                : Event(other.Event)
-                , Timestamp(other.Timestamp)
-            {
-                Clone(other);
-            }
-
-            ~TItem() {
-                Destroy();
-            }
-
-            TItem& operator=(const TItem& other) {
-                Destroy();
-                Event = other.Event;
-                Timestamp = other.Timestamp;
-                Clone(other);
-                return *this;
-            }
-
-            void Clear() {
-                Destroy();
-                Event = nullptr;
-            }
-
-        private:
-            void Clone(const TItem& other) {
-                if (Event && Event->Signature.ParamCount > 0) {
-                    Event->Signature.CloneParams(Params, other.Params);
-                }
-            }
-
-            void Destroy() {
-                if (Event && Event->Signature.ParamCount > 0) {
-                    Event->Signature.DestroyParams(Params);
-                }
-            }
-        };
-
-        class TAccessor;
-        friend class TAccessor;
-        class TAccessor: public TGuard<TMutex> {
-        private:
-            TInMemoryLog& Log;
-
-        public:
-            explicit TAccessor(TInMemoryLog& log)
-                : TGuard<TMutex>(log.Lock)
-                , Log(log)
-            {
-            }
-
-            TItem* Add() {
-                return Log.Storage.Add();
-            }
-        };
-
-    private:
-        TMutex Lock;
-        TCyclicBuffer<TItem> Storage;
-
-    public:
-        explicit TInMemoryLog(size_t capacity)
-            : Storage(capacity)
-        {
-        }
-
-        template <class TReader>
-        void ReadItems(TReader& r) const {
-            TGuard<TMutex> g(Lock);
-            if (Storage.GetSize() > 0) {
-                for (const TItem *i = Storage.GetFront(), *e = Storage.GetBack();; Storage.Inc(i)) {
-                    r.Push(*i);
-                    if (i == e) {
-                        break;
-                    }
-                }
-            }
-        }
-    };
-
-#ifndef LWTRACE_DISABLE
-
-    // Class representing a specific event
-    template <LWTRACE_TEMPLATE_PARAMS>
-    struct TUserEvent {
-        TEvent Event;
-
-        inline void operator()(TInMemoryLog& log, bool logTimestamp, LWTRACE_FUNCTION_PARAMS) const {
-            TInMemoryLog::TAccessor la(log);
-            if (TInMemoryLog::TItem* item = la.Add()) {
-                item->Event = &Event;
-                LWTRACE_PREPARE_PARAMS(item->Params);
-                if (logTimestamp) {
-                    item->Timestamp = TInstant::Now();
-                }
-            }
-        }
-    };
-
-#endif
-
-}
+ 
+            TItem(TThread::TId tid, const TLogItem& item) 
+                : TLogItem(item) 
+                , ThreadId(tid) 
+            { 
+            } 
+        }; 
+ 
+        using TItems = TVector<TItem>; 
+        TItems Items; 
+        bool Truncated = false; 
+        ui64 Id = 0; 
+ 
+        void Clear() { 
+            Items.clear(); 
+            Truncated = false; 
+        } 
+ 
+        ui64 GetTimestampCycles() const { 
+            return Items.empty() ? 0 : Items.front().GetTimestampCycles(); 
+        } 
+    }; 
+ 
+    // Log that uses per-thread cyclic buffers to store items 
+    template <class T> 
+    class TCyclicLogImpl: public TNonCopyable { 
+    public: 
+        using TLog = TCyclicLogImpl; 
+        using TItem = T; 
+ 
+    private: 
+        using TBuffer = TCyclicBuffer<TItem>; 
+ 
+        class TStorage { 
+        private: 
+            // Data that can be accessed in lock-free way from reader/writer 
+            TAtomic Writers = 0; 
+            mutable TBuffer* volatile CurBuffer = nullptr; 
+ 
+            // Data that can be accessed only from reader 
+            // NOTE: multiple readers are serialized by TCyclicLogImpl::Lock 
+            mutable TBuffer* OldBuffer = nullptr; 
+            mutable TBuffer* NewBuffer = nullptr; 
+ 
+            TLog* volatile Log = nullptr; 
+ 
+            TThread::TId ThreadId = 0; 
+            TAtomic EventsCount = 0; 
+ 
+        public: 
+            TStorage() { 
+            } 
+ 
+            explicit TStorage(TLog* log) 
+                : CurBuffer(new TBuffer(log->GetCapacity())) 
+                , OldBuffer(new TBuffer(log->GetCapacity())) 
+                , NewBuffer(new TBuffer(log->GetCapacity())) 
+                , Log(log) 
+                , ThreadId(TThread::CurrentThreadId()) 
+            { 
+                Log->RegisterThread(this); 
+            } 
+ 
+            ~TStorage() { 
+                if (TLog* log = AtomicSwap(&Log, nullptr)) { 
+                    AtomicBarrier(); // Serialize `Log' and TCyclicLogImpl::Lock memory order 
+                    // NOTE: the following function swaps `this' with `new TStorage()' 
+                    log->UnregisterThreadAndMakeOrphan(this); 
+                } else { 
+                    // NOTE: `Log' can be nullptr if either it is orphan storage or TryDismiss() succeeded 
+                    // NOTE: in both cases it is ok to call these deletes 
+                    delete CurBuffer; 
+                    delete OldBuffer; 
+                    delete NewBuffer; 
+                } 
+            } 
+ 
+            bool TryDismiss() { 
+                // TCyclicLogImpl::Lock implied (no readers) 
+                if (TLog* log = AtomicSwap(&Log, nullptr)) { 
+                    TBuffer* curBuffer = AtomicSwap(&CurBuffer, nullptr); 
+                    WaitForWriters(); 
+                    // At this point we guarantee that there is no and wont be active writer 
+                    delete curBuffer; 
+                    delete OldBuffer; 
+                    delete NewBuffer; 
+                    OldBuffer = nullptr; 
+                    NewBuffer = nullptr; 
+                    return true; 
+                } else { 
+                    // ~TStorage() is in progress 
+                    return false; 
+                } 
+            } 
+ 
+            void WaitForWriters() const { 
+                while (AtomicGet(Writers) > 0) { 
+                    SpinLockPause(); 
+                } 
+            } 
+ 
+            TThread::TId GetThreadId() const { 
+                // TCyclicLogImpl::Lock implied (no readers) 
+                return ThreadId; 
+            } 
+ 
+            size_t GetEventsCount() const { 
+                // TCyclicLogImpl::Lock implied (no readers) 
+                return AtomicGet(EventsCount); 
+            } 
+ 
+            void Swap(TStorage& other) { 
+                // TCyclicLogImpl::Lock implied (no readers) 
+                std::swap(CurBuffer, other.CurBuffer); 
+                std::swap(OldBuffer, other.OldBuffer); 
+                std::swap(NewBuffer, other.NewBuffer); 
+                std::swap(Log, other.Log); 
+                std::swap(ThreadId, other.ThreadId); 
+                std::swap(EventsCount, other.EventsCount); 
+            } 
+ 
+            TBuffer* StartWriter() { 
+                AtomicIncrement(Writers); 
+                return const_cast<TBuffer*>(AtomicGet(CurBuffer)); 
+            } 
+ 
+            void StopWriter() { 
+                AtomicDecrement(Writers); 
+            } 
+ 
+            void IncEventsCount() { 
+                AtomicIncrement(EventsCount); 
+            } 
+ 
+            template <class TReader> 
+            void ReadItems(TReader& r) const { 
+                // TCyclicLogImpl::Lock implied 
+                NewBuffer = AtomicSwap(&CurBuffer, NewBuffer); 
+                WaitForWriters(); 
+ 
+                // Merge new buffer into old buffer 
+                if (NewBuffer->IsFull()) { 
+                    std::swap(NewBuffer, OldBuffer); 
+                } else { 
+                    if (NewBuffer->GetSize() > 0) { 
+                        for (const TItem *i = NewBuffer->GetFront(), *e = NewBuffer->GetBack();; NewBuffer->Inc(i)) { 
+                            TItem* oldSlot = OldBuffer->Add(); 
+                            *oldSlot = *i; 
+                            if (i == e) { 
+                                break; 
+                            } 
+                        } 
+                    } 
+                } 
+ 
+                NewBuffer->Clear(); 
+ 
+                // Iterate over old buffer 
+                if (OldBuffer->GetSize() > 0) { 
+                    for (const TItem *i = OldBuffer->GetFront(), *e = OldBuffer->GetBack();; OldBuffer->Inc(i)) { 
+                        r.Push(ThreadId, *i); 
+                        if (i == e) { 
+                            break; 
+                        } 
+                    } 
+                } 
+            } 
+        }; 
+ 
+        size_t Capacity; 
+        Y_THREAD(TStorage) 
+        PerThreadStorage; 
+        TSpinLock Lock; 
+        // If thread exits its storage is destroyed, so we move it into OrphanStorages before destruction 
+        TVector<TAtomicSharedPtr<TStorage>> OrphanStorages; 
+        typedef TVector<TStorage*> TStoragesVec; 
+        TStoragesVec StoragesVec; 
+        TAtomic ThreadsCount; 
+ 
+    public: 
+        explicit TCyclicLogImpl(size_t capacity) 
+            : Capacity(capacity) 
+            , PerThreadStorage(this) 
+            , ThreadsCount(0) 
+        { 
+        } 
+ 
+        ~TCyclicLogImpl() { 
+            for (bool again = true; again;) { 
+                TGuard<TSpinLock> g(Lock); 
+                AtomicBarrier(); // Serialize `storage->Log' and Lock memory order 
+                again = false; 
+                while (!StoragesVec.empty()) { 
+                    TStorage* storage = StoragesVec.back(); 
+                    // TStorage destructor can be called when TCyclicLogImpl is already destructed 
+                    // So we ensure this does not lead to problems 
+                    // NOTE: Y_THREAD(TStorage) destructs TStorage object for a specific thread only on that thread exit 
+                    // NOTE: this issue can lead to memleaks if threads never exit and many TCyclicLogImpl are created 
+                    if (storage->TryDismiss()) { 
+                        StoragesVec.pop_back(); 
+                    } else { 
+                        // Rare case when another thread is running ~TStorage() -- let it finish 
+                        again = true; 
+                        SpinLockPause(); 
+                        break; 
+                    } 
+                } 
+            } 
+        } 
+ 
+        size_t GetCapacity() const { 
+            return Capacity; 
+        } 
+ 
+        size_t GetEventsCount() const { 
+            size_t events = 0; 
+            TGuard<TSpinLock> g(Lock); 
+            for (auto i : StoragesVec) { 
+                events += i->GetEventsCount(); 
+            } 
+            for (const auto& orphanStorage : OrphanStorages) { 
+                events += orphanStorage->GetEventsCount(); 
+            } 
+            return events; 
+        } 
+ 
+        size_t GetThreadsCount() const { 
+            return AtomicGet(ThreadsCount); 
+        } 
+ 
+        void RegisterThread(TStorage* storage) { 
+            TGuard<TSpinLock> g(Lock); 
+            StoragesVec.push_back(storage); 
+            AtomicIncrement(ThreadsCount); 
+        } 
+ 
+        void UnregisterThreadAndMakeOrphan(TStorage* storage) { 
+            TGuard<TSpinLock> g(Lock); 
+            // `storage' writers are not possible at this scope because 
+            // UnregisterThreadAndMakeOrphan is only called from exiting threads. 
+            // `storage' readers are not possible at this scope due to Lock guard. 
+ 
+            Erase(StoragesVec, storage); 
+            TAtomicSharedPtr<TStorage> orphan(new TStorage()); 
+            orphan->Swap(*storage); // Swap is required because we cannot take ownership from Y_THREAD(TStorage) object 
+            OrphanStorages.push_back(orphan); 
+        } 
+ 
+        template <class TReader> 
+        void ReadThreads(TReader& r) const { 
+            TGuard<TSpinLock> g(Lock); 
+            for (auto i : StoragesVec) { 
+                r.PushThread(i->GetThreadId()); 
+            } 
+            for (const auto& orphanStorage : OrphanStorages) { 
+                r.PushThread(orphanStorage->GetThreadId()); 
+            } 
+        } 
+ 
+        template <class TReader> 
+        void ReadItems(TReader& r) const { 
+            TGuard<TSpinLock> g(Lock); 
+            for (auto i : StoragesVec) { 
+                i->ReadItems(r); 
+            } 
+            for (const auto& orphanStorage : OrphanStorages) { 
+                orphanStorage->ReadItems(r); 
+            } 
+        } 
+ 
+        class TAccessor { 
+        private: 
+            TStorage& Storage; 
+            TBuffer* Buffer; 
+ 
+        public: 
+            explicit TAccessor(TLog& log) 
+                : Storage(log.PerThreadStorage.Get()) 
+                , Buffer(Storage.StartWriter()) 
+            { 
+            } 
+ 
+            ~TAccessor() { 
+                Storage.StopWriter(); 
+            } 
+ 
+            TItem* Add() { 
+                if (Buffer) { 
+                    Storage.IncEventsCount(); 
+                    return Buffer->Add(); 
+                } else { 
+                    // TStorage detached from trace due to trace destruction 
+                    // so we should not try log anything 
+                    return nullptr; 
+                } 
+            } 
+        }; 
+ 
+        friend class TAccessor; 
+    }; 
+ 
+    using TCyclicLog = TCyclicLogImpl<TLogItem>; 
+    using TCyclicDepot = TCyclicLogImpl<TTrackLog>; 
+ 
+    // Log that uses per-thread buffers to store items up to given duration 
+    template <class T> 
+    class TDurationLogImpl: public TNonCopyable { 
+    public: 
+        using TLog = TDurationLogImpl; 
+        using TItem = T; 
+ 
+        class TAccessor; 
+        friend class TAccessor; 
+        class TAccessor: public TGuard<TSpinLock> { 
+        private: 
+            TLog& Log; 
+ 
+        public: 
+            explicit TAccessor(TLog& log) 
+                : TGuard<TSpinLock>(log.PerThreadStorage.Get().Lock) 
+                , Log(log) 
+            { 
+            } 
+ 
+            TItem* Add() { 
+                return Log.PerThreadStorage.Get().Add(); 
+            } 
+        }; 
+ 
+    private: 
+        class TStorage: public TDurationBuffer<TItem> { 
+        private: 
+            TLog* Log; 
+            TThread::TId ThreadId; 
+            ui64 EventsCount; 
+ 
+        public: 
+            TSpinLock Lock; 
+ 
+            TStorage() 
+                : TDurationBuffer<TItem>(TDuration::Zero()) 
+                , Log(nullptr) 
+                , ThreadId(0) 
+                , EventsCount(0) 
+            { 
+            } 
+ 
+            explicit TStorage(TLog* log) 
+                : TDurationBuffer<TItem>(log->GetDuration()) 
+                , Log(log) 
+                , ThreadId(TThread::CurrentThreadId()) 
+                , EventsCount(0) 
+            { 
+                Log->RegisterThread(this); 
+            } 
+ 
+            ~TStorage() { 
+                if (Log) { 
+                    Log->UnregisterThread(this); 
+                } 
+            } 
+ 
+            void DetachFromTraceLog() { 
+                Log = nullptr; 
+            } 
+ 
+            TItem* Add() { 
+                EventsCount++; 
+                return TDurationBuffer<TItem>::Add(); 
+            } 
+ 
+            bool Expired(ui64 now) const { 
+                return this->Empty() ? true : this->GetBack()->GetTimestampCycles() + this->StoreDuration < now; 
+            } 
+ 
+            TThread::TId GetThreadId() const { 
+                return ThreadId; 
+            } 
+ 
+            size_t GetEventsCount() const { 
+                return EventsCount; 
+            } 
+ 
+            void Swap(TStorage& other) { 
+                TDurationBuffer<TItem>::Swap(other); 
+                std::swap(Log, other.Log); 
+                std::swap(ThreadId, other.ThreadId); 
+                std::swap(EventsCount, other.EventsCount); 
+            } 
+ 
+            template <class TReader> 
+            void ReadItems(ui64 now, ui64 duration, TReader& r) const { 
+                TGuard<TSpinLock> g(Lock); 
+                if (now > duration) { 
+                    ui64 cutoff = now - duration; 
+                    for (const TItem& item : this->Data) { 
+                        if (item.GetTimestampCycles() >= cutoff) { 
+                            r.Push(ThreadId, item); 
+                        } 
+                    } 
+                } else { 
+                    for (const TItem& item : this->Data) { 
+                        r.Push(ThreadId, item); 
+                    } 
+                } 
+            } 
+        }; 
+ 
+        TDuration Duration; 
+        Y_THREAD(TStorage) 
+        PerThreadStorage; 
+        TSpinLock Lock; 
+        typedef TVector<TAtomicSharedPtr<TStorage>> TOrphanStorages; 
+        TOrphanStorages OrphanStorages; // if thread exits its storage is destroyed, so we move it into OrphanStorages before destruction 
+        TAtomic OrphanStoragesEventsCount = 0; 
+        typedef TVector<TStorage*> TStoragesVec; 
+        TStoragesVec StoragesVec; 
+        TAtomic ThreadsCount; 
+ 
+    public: 
+        explicit TDurationLogImpl(TDuration duration) 
+            : Duration(duration) 
+            , PerThreadStorage(this) 
+            , ThreadsCount(0) 
+        { 
+        } 
+ 
+        ~TDurationLogImpl() { 
+            for (auto storage : StoragesVec) { 
+                // NOTE: Y_THREAD(TStorage) destructs TStorage object for a specific thread only on that thread exit 
+                // NOTE: this issue can lead to memleaks if threads never exit and many TTraceLogs are created 
+                storage->Destroy(); 
+ 
+                // TraceLogStorage destructor can be called when TTraceLog is already destructed 
+                // So we ensure this does not lead to problems 
+                storage->DetachFromTraceLog(); 
+            } 
+        } 
+ 
+        TDuration GetDuration() const { 
+            return Duration; 
+        } 
+ 
+        size_t GetEventsCount() const { 
+            size_t events = AtomicGet(OrphanStoragesEventsCount); 
+            TGuard<TSpinLock> g(Lock); 
+            for (auto i : StoragesVec) { 
+                events += i->GetEventsCount(); 
+            } 
+            return events; 
+        } 
+ 
+        size_t GetThreadsCount() const { 
+            return AtomicGet(ThreadsCount); 
+        } 
+ 
+        void RegisterThread(TStorage* storage) { 
+            TGuard<TSpinLock> g(Lock); 
+            StoragesVec.push_back(storage); 
+            AtomicIncrement(ThreadsCount); 
+        } 
+ 
+        void UnregisterThread(TStorage* storage) { 
+            TGuard<TSpinLock> g(Lock); 
+            for (auto i = StoragesVec.begin(), e = StoragesVec.end(); i != e; ++i) { 
+                if (*i == storage) { 
+                    StoragesVec.erase(i); 
+                    break; 
+                } 
+            } 
+            TAtomicSharedPtr<TStorage> orphan(new TStorage()); 
+            orphan->Swap(*storage); 
+            orphan->DetachFromTraceLog(); 
+            AtomicAdd(OrphanStoragesEventsCount, orphan->GetEventsCount()); 
+            OrphanStorages.push_back(orphan); 
+            CleanOrphanStorages(GetCycleCount()); 
+        } 
+ 
+        void CleanOrphanStorages(ui64 now) { 
+            EraseIf(OrphanStorages, [=](const TAtomicSharedPtr<TStorage>& ptr) { 
+                const TStorage& storage = *ptr; 
+                return storage.Expired(now); 
+            }); 
+        } 
+ 
+        template <class TReader> 
+        void ReadThreads(TReader& r) const { 
+            TGuard<TSpinLock> g(Lock); 
+            for (TStorage* i : StoragesVec) { 
+                r.PushThread(i->GetThreadId()); 
+            } 
+            for (const auto& orphanStorage : OrphanStorages) { 
+                r.PushThread(orphanStorage->GetThreadId()); 
+            } 
+        } 
+ 
+        template <class TReader> 
+        void ReadItems(ui64 now, ui64 duration, TReader& r) const { 
+            TGuard<TSpinLock> g(Lock); 
+            for (TStorage* storage : StoragesVec) { 
+                storage->ReadItems(now, duration, r); 
+            } 
+            for (const auto& orphanStorage : OrphanStorages) { 
+                orphanStorage->ReadItems(now, duration, r); 
+            } 
+        } 
+    }; 
+ 
+    using TDurationLog = TDurationLogImpl<TLogItem>; 
+    using TDurationDepot = TDurationLogImpl<TTrackLog>; 
+ 
+    // Log that uses one cyclic buffer to store items 
+    // Each item is a result of execution of some event 
+    class TInMemoryLog: public TNonCopyable { 
+    public: 
+        struct TItem { 
+            const TEvent* Event; 
+            TParams Params; 
+            TInstant Timestamp; 
+ 
+            TItem() 
+                : Event(nullptr) 
+            { 
+            } 
+ 
+            TItem(const TItem& other) 
+                : Event(other.Event) 
+                , Timestamp(other.Timestamp) 
+            { 
+                Clone(other); 
+            } 
+ 
+            ~TItem() { 
+                Destroy(); 
+            } 
+ 
+            TItem& operator=(const TItem& other) { 
+                Destroy(); 
+                Event = other.Event; 
+                Timestamp = other.Timestamp; 
+                Clone(other); 
+                return *this; 
+            } 
+ 
+            void Clear() { 
+                Destroy(); 
+                Event = nullptr; 
+            } 
+ 
+        private: 
+            void Clone(const TItem& other) { 
+                if (Event && Event->Signature.ParamCount > 0) { 
+                    Event->Signature.CloneParams(Params, other.Params); 
+                } 
+            } 
+ 
+            void Destroy() { 
+                if (Event && Event->Signature.ParamCount > 0) { 
+                    Event->Signature.DestroyParams(Params); 
+                } 
+            } 
+        }; 
+ 
+        class TAccessor; 
+        friend class TAccessor; 
+        class TAccessor: public TGuard<TMutex> { 
+        private: 
+            TInMemoryLog& Log; 
+ 
+        public: 
+            explicit TAccessor(TInMemoryLog& log) 
+                : TGuard<TMutex>(log.Lock) 
+                , Log(log) 
+            { 
+            } 
+ 
+            TItem* Add() { 
+                return Log.Storage.Add(); 
+            } 
+        }; 
+ 
+    private: 
+        TMutex Lock; 
+        TCyclicBuffer<TItem> Storage; 
+ 
+    public: 
+        explicit TInMemoryLog(size_t capacity) 
+            : Storage(capacity) 
+        { 
+        } 
+ 
+        template <class TReader> 
+        void ReadItems(TReader& r) const { 
+            TGuard<TMutex> g(Lock); 
+            if (Storage.GetSize() > 0) { 
+                for (const TItem *i = Storage.GetFront(), *e = Storage.GetBack();; Storage.Inc(i)) { 
+                    r.Push(*i); 
+                    if (i == e) { 
+                        break; 
+                    } 
+                } 
+            } 
+        } 
+    }; 
+ 
+#ifndef LWTRACE_DISABLE 
+ 
+    // Class representing a specific event 
+    template <LWTRACE_TEMPLATE_PARAMS> 
+    struct TUserEvent { 
+        TEvent Event; 
+ 
+        inline void operator()(TInMemoryLog& log, bool logTimestamp, LWTRACE_FUNCTION_PARAMS) const { 
+            TInMemoryLog::TAccessor la(log); 
+            if (TInMemoryLog::TItem* item = la.Add()) { 
+                item->Event = &Event; 
+                LWTRACE_PREPARE_PARAMS(item->Params); 
+                if (logTimestamp) { 
+                    item->Timestamp = TInstant::Now(); 
+                } 
+            } 
+        } 
+    }; 
+ 
+#endif 
+ 
+} 
diff --git a/library/cpp/lwtrace/log_shuttle.cpp b/library/cpp/lwtrace/log_shuttle.cpp
index 695aa90b31..1e9c00d0ef 100644
--- a/library/cpp/lwtrace/log_shuttle.cpp
+++ b/library/cpp/lwtrace/log_shuttle.cpp
@@ -1,32 +1,32 @@
-#include "log_shuttle.h"
+#include "log_shuttle.h" 
 #include "probes.h"
-
-namespace NLWTrace {
+ 
+namespace NLWTrace { 
     LWTRACE_USING(LWTRACE_INTERNAL_PROVIDER);
 
 #ifdef LWTRACE_DISABLE
 
     template <class TDepot>
-    bool TLogShuttle<TDepot>::DoFork(TShuttlePtr& child) {
-        Y_UNUSED(child);
+    bool TLogShuttle<TDepot>::DoFork(TShuttlePtr& child) { 
+        Y_UNUSED(child); 
         return false;
     }
 
     template <class TDepot>
-    bool TLogShuttle<TDepot>::DoJoin(const TShuttlePtr& child) {
-        Y_UNUSED(child);
+    bool TLogShuttle<TDepot>::DoJoin(const TShuttlePtr& child) { 
+        Y_UNUSED(child); 
         return false;
     }
 
 #else
 
     template <class TDepot>
-    bool TLogShuttle<TDepot>::DoFork(TShuttlePtr& child) {
-        if (child = Executor->RentShuttle()) {
-            child->SetParentSpanId(GetSpanId());
-            Executor->Cast(child)->SetIgnore(true);
+    bool TLogShuttle<TDepot>::DoFork(TShuttlePtr& child) { 
+        if (child = Executor->RentShuttle()) { 
+            child->SetParentSpanId(GetSpanId()); 
+            Executor->Cast(child)->SetIgnore(true); 
             TParams params;
-            params.Param[0].CopyConstruct<ui64>(child->GetSpanId());
+            params.Param[0].CopyConstruct<ui64>(child->GetSpanId()); 
             bool result = DoAddProbe(&LWTRACE_GET_NAME(Fork).Probe, params, 0);
             TUserSignature<ui64>::DestroyParams(params);
             return result;
@@ -64,4 +64,4 @@ namespace NLWTrace {
 
     template class TLogShuttle<TDurationDepot>;
     template class TLogShuttle<TCyclicDepot>;
-}
+} 
diff --git a/library/cpp/lwtrace/log_shuttle.h b/library/cpp/lwtrace/log_shuttle.h
index 729a38615f..8c9dc3a587 100644
--- a/library/cpp/lwtrace/log_shuttle.h
+++ b/library/cpp/lwtrace/log_shuttle.h
@@ -1,160 +1,160 @@
-#pragma once
-
-#include "log.h"
-#include "probe.h"
-
+#pragma once 
+ 
+#include "log.h" 
+#include "probe.h" 
+ 
 #include <library/cpp/lwtrace/protos/lwtrace.pb.h>
 
 #include <util/system/spinlock.h>
 
-namespace NLWTrace {
-    template <class TDepot>
-    class TRunLogShuttleActionExecutor;
-
-    ////////////////////////////////////////////////////////////////////////////////
-
-    struct THostTimeCalculator {
+namespace NLWTrace { 
+    template <class TDepot> 
+    class TRunLogShuttleActionExecutor; 
+ 
+    //////////////////////////////////////////////////////////////////////////////// 
+ 
+    struct THostTimeCalculator { 
         double K = 0;
         ui64 B = 0;
 
-        THostTimeCalculator() {
+        THostTimeCalculator() { 
             TInstant now = TInstant::Now();
             ui64 tsNow = GetCycleCount();
             K = 1000000000 / NHPTimer::GetClockRate();
             B = now.NanoSeconds() - K * tsNow;
         }
 
-        ui64 CyclesToEpochNanoseconds(ui64 cycles) const {
+        ui64 CyclesToEpochNanoseconds(ui64 cycles) const { 
             return K*cycles + B;
         }
 
-        ui64 EpochNanosecondsToCycles(ui64 ns) const {
+        ui64 EpochNanosecondsToCycles(ui64 ns) const { 
             return (ns - B) / K;
         }
     };
 
-    inline ui64 CyclesToEpochNanoseconds(ui64 cycles) {
+    inline ui64 CyclesToEpochNanoseconds(ui64 cycles) { 
         return Singleton<THostTimeCalculator>()->CyclesToEpochNanoseconds(cycles);
     }
 
-    inline ui64 EpochNanosecondsToCycles(ui64 ns) {
+    inline ui64 EpochNanosecondsToCycles(ui64 ns) { 
         return Singleton<THostTimeCalculator>()->EpochNanosecondsToCycles(ns);
     }
 
     ////////////////////////////////////////////////////////////////////////////////
 
-    template <class TDepot>
-    class TLogShuttle: public IShuttle {
-    private:
+    template <class TDepot> 
+    class TLogShuttle: public IShuttle { 
+    private: 
         using TExecutor = TRunLogShuttleActionExecutor<TDepot>;
-        TTrackLog TrackLog;
+        TTrackLog TrackLog; 
         TExecutor* Executor;
-        bool Ignore = false;
-        size_t MaxTrackLength;
+        bool Ignore = false; 
+        size_t MaxTrackLength; 
         TAdaptiveLock Lock;
         TAtomic ForkFailed = 0;
-
-    public:
+ 
+    public: 
         explicit TLogShuttle(TExecutor* executor)
             : IShuttle(executor->GetTraceIdx(), executor->NewSpanId())
             , Executor(executor)
             , MaxTrackLength(Executor->GetAction().GetMaxTrackLength() ? Executor->GetAction().GetMaxTrackLength() : 100)
-        {
-        }
-
+        { 
+        } 
+ 
         bool DoAddProbe(TProbe* probe, const TParams& params, ui64 timestamp) override;
-        void DoEndOfTrack() override;
-        void DoDrop() override;
+        void DoEndOfTrack() override; 
+        void DoDrop() override; 
         void DoSerialize(TShuttleTrace& msg) override;
-        bool DoFork(TShuttlePtr& child) override;
+        bool DoFork(TShuttlePtr& child) override; 
         bool DoJoin(const TShuttlePtr& child) override;
-
-        void SetIgnore(bool ignore);
-        void Clear();
-
-        const TTrackLog& GetTrackLog() const {
-            return TrackLog;
-        }
-    };
-
-    ////////////////////////////////////////////////////////////////////////////////
-
-    template <class TDepot>
-    class TLogShuttleActionBase: public IExecutor {
-    private:
-        const ui64 TraceIdx;
-
-    public:
-        explicit TLogShuttleActionBase(ui64 traceIdx)
-            : TraceIdx(traceIdx)
-        {
-        }
-        ui64 GetTraceIdx() const {
-            return TraceIdx;
-        }
-
-        static TLogShuttle<TDepot>* Cast(const TShuttlePtr& shuttle);
-        static TLogShuttle<TDepot>* Cast(IShuttle* shuttle);
-    };
-
-    ////////////////////////////////////////////////////////////////////////////////
-
-    template <class TDepot>
-    class TRunLogShuttleActionExecutor: public TLogShuttleActionBase<TDepot> {
-    private:
-        TSpinLock Lock;
-        TVector<TShuttlePtr> AllShuttles;
-        TVector<TShuttlePtr> Parking;
-        TRunLogShuttleAction Action;
-        TDepot* Depot;
-
-        TAtomic MissedTracks = 0;
-        TAtomic* LastTrackId;
+ 
+        void SetIgnore(bool ignore); 
+        void Clear(); 
+ 
+        const TTrackLog& GetTrackLog() const { 
+            return TrackLog; 
+        } 
+    }; 
+ 
+    //////////////////////////////////////////////////////////////////////////////// 
+ 
+    template <class TDepot> 
+    class TLogShuttleActionBase: public IExecutor { 
+    private: 
+        const ui64 TraceIdx; 
+ 
+    public: 
+        explicit TLogShuttleActionBase(ui64 traceIdx) 
+            : TraceIdx(traceIdx) 
+        { 
+        } 
+        ui64 GetTraceIdx() const { 
+            return TraceIdx; 
+        } 
+ 
+        static TLogShuttle<TDepot>* Cast(const TShuttlePtr& shuttle); 
+        static TLogShuttle<TDepot>* Cast(IShuttle* shuttle); 
+    }; 
+ 
+    //////////////////////////////////////////////////////////////////////////////// 
+ 
+    template <class TDepot> 
+    class TRunLogShuttleActionExecutor: public TLogShuttleActionBase<TDepot> { 
+    private: 
+        TSpinLock Lock; 
+        TVector<TShuttlePtr> AllShuttles; 
+        TVector<TShuttlePtr> Parking; 
+        TRunLogShuttleAction Action; 
+        TDepot* Depot; 
+ 
+        TAtomic MissedTracks = 0; 
+        TAtomic* LastTrackId; 
         TAtomic* LastSpanId;
-
-        static constexpr int MaxShuttles = 100000;
-
-    public:
+ 
+        static constexpr int MaxShuttles = 100000; 
+ 
+    public: 
         TRunLogShuttleActionExecutor(ui64 traceIdx, const TRunLogShuttleAction& action, TDepot* depot, TAtomic* lastTrackId, TAtomic* lastSpanId);
-        ~TRunLogShuttleActionExecutor();
-        bool DoExecute(TOrbit& orbit, const TParams& params) override;
-        void RecordShuttle(TLogShuttle<TDepot>* shuttle);
-        void ParkShuttle(TLogShuttle<TDepot>* shuttle);
+        ~TRunLogShuttleActionExecutor(); 
+        bool DoExecute(TOrbit& orbit, const TParams& params) override; 
+        void RecordShuttle(TLogShuttle<TDepot>* shuttle); 
+        void ParkShuttle(TLogShuttle<TDepot>* shuttle); 
         void DiscardShuttle();
         TShuttlePtr RentShuttle();
         ui64 NewSpanId();
-        const TRunLogShuttleAction& GetAction() const {
-            return Action;
-        }
-    };
-
-    ////////////////////////////////////////////////////////////////////////////////
-
-    template <class TDepot>
-    class TEditLogShuttleActionExecutor: public TLogShuttleActionBase<TDepot> {
-    private:
-        TEditLogShuttleAction Action;
-
-    public:
-        TEditLogShuttleActionExecutor(ui64 traceIdx, const TEditLogShuttleAction& action);
-        bool DoExecute(TOrbit& orbit, const TParams& params) override;
-    };
-
-    ////////////////////////////////////////////////////////////////////////////////
-
-    template <class TDepot>
-    class TDropLogShuttleActionExecutor: public TLogShuttleActionBase<TDepot> {
-    private:
-        TDropLogShuttleAction Action;
-
-    public:
-        TDropLogShuttleActionExecutor(ui64 traceIdx, const TDropLogShuttleAction& action);
-        bool DoExecute(TOrbit& orbit, const TParams& params) override;
-    };
-
-    ////////////////////////////////////////////////////////////////////////////////
-
-    template <class TDepot>
+        const TRunLogShuttleAction& GetAction() const { 
+            return Action; 
+        } 
+    }; 
+ 
+    //////////////////////////////////////////////////////////////////////////////// 
+ 
+    template <class TDepot> 
+    class TEditLogShuttleActionExecutor: public TLogShuttleActionBase<TDepot> { 
+    private: 
+        TEditLogShuttleAction Action; 
+ 
+    public: 
+        TEditLogShuttleActionExecutor(ui64 traceIdx, const TEditLogShuttleAction& action); 
+        bool DoExecute(TOrbit& orbit, const TParams& params) override; 
+    }; 
+ 
+    //////////////////////////////////////////////////////////////////////////////// 
+ 
+    template <class TDepot> 
+    class TDropLogShuttleActionExecutor: public TLogShuttleActionBase<TDepot> { 
+    private: 
+        TDropLogShuttleAction Action; 
+ 
+    public: 
+        TDropLogShuttleActionExecutor(ui64 traceIdx, const TDropLogShuttleAction& action); 
+        bool DoExecute(TOrbit& orbit, const TParams& params) override; 
+    }; 
+ 
+    //////////////////////////////////////////////////////////////////////////////// 
+ 
+    template <class TDepot> 
     bool TLogShuttle<TDepot>::DoAddProbe(TProbe* probe, const TParams& params, ui64 timestamp) {
         with_lock (Lock) {
             if (TrackLog.Items.size() >= MaxTrackLength) {
@@ -169,41 +169,41 @@ namespace NLWTrace {
                 probe->Event.Signature.CloneParams(item->Params, params);
             }
             item->TimestampCycles = timestamp ? timestamp : GetCycleCount();
-        }
-
-        return true;
-    }
-
-    template <class TDepot>
-    void TLogShuttle<TDepot>::DoEndOfTrack() {
-        // Record track log if not ignored
-        if (!Ignore) {
+        } 
+
+        return true; 
+    } 
+ 
+    template <class TDepot> 
+    void TLogShuttle<TDepot>::DoEndOfTrack() { 
+        // Record track log if not ignored 
+        if (!Ignore) { 
             if (AtomicGet(ForkFailed)) {
                 Executor->DiscardShuttle();
             } else {
                 Executor->RecordShuttle(this);
             }
-        }
+        } 
         Executor->ParkShuttle(this);
-    }
-
-    template <class TDepot>
-    void TLogShuttle<TDepot>::DoDrop() {
-        // Do not track log results of dropped shuttles
+    } 
+ 
+    template <class TDepot> 
+    void TLogShuttle<TDepot>::DoDrop() { 
+        // Do not track log results of dropped shuttles 
         Executor->ParkShuttle(this);
-    }
-
-    template <class TDepot>
-    void TLogShuttle<TDepot>::SetIgnore(bool ignore) {
-        Ignore = ignore;
-    }
-
-    template <class TDepot>
-    void TLogShuttle<TDepot>::Clear() {
-        TrackLog.Clear();
-    }
-
-    template <class TDepot>
+    } 
+ 
+    template <class TDepot> 
+    void TLogShuttle<TDepot>::SetIgnore(bool ignore) { 
+        Ignore = ignore; 
+    } 
+ 
+    template <class TDepot> 
+    void TLogShuttle<TDepot>::Clear() { 
+        TrackLog.Clear(); 
+    } 
+ 
+    template <class TDepot> 
     void TLogShuttle<TDepot>::DoSerialize(TShuttleTrace& msg)
     {
         with_lock (Lock)
@@ -223,137 +223,137 @@ namespace NLWTrace {
     }
 
     template <class TDepot>
-    TLogShuttle<TDepot>* TLogShuttleActionBase<TDepot>::Cast(const TShuttlePtr& shuttle) {
-        return static_cast<TLogShuttle<TDepot>*>(shuttle.Get());
-    }
-
-    template <class TDepot>
-    TLogShuttle<TDepot>* TLogShuttleActionBase<TDepot>::Cast(IShuttle* shuttle) {
-        return static_cast<TLogShuttle<TDepot>*>(shuttle);
-    }
-
-    ////////////////////////////////////////////////////////////////////////////////
-
-    template <class TDepot>
-    TRunLogShuttleActionExecutor<TDepot>::TRunLogShuttleActionExecutor(
-        ui64 traceIdx,
-        const TRunLogShuttleAction& action,
-        TDepot* depot,
+    TLogShuttle<TDepot>* TLogShuttleActionBase<TDepot>::Cast(const TShuttlePtr& shuttle) { 
+        return static_cast<TLogShuttle<TDepot>*>(shuttle.Get()); 
+    } 
+ 
+    template <class TDepot> 
+    TLogShuttle<TDepot>* TLogShuttleActionBase<TDepot>::Cast(IShuttle* shuttle) { 
+        return static_cast<TLogShuttle<TDepot>*>(shuttle); 
+    } 
+ 
+    //////////////////////////////////////////////////////////////////////////////// 
+ 
+    template <class TDepot> 
+    TRunLogShuttleActionExecutor<TDepot>::TRunLogShuttleActionExecutor( 
+        ui64 traceIdx, 
+        const TRunLogShuttleAction& action, 
+        TDepot* depot, 
         TAtomic* lastTrackId,
         TAtomic* lastSpanId)
-        : TLogShuttleActionBase<TDepot>(traceIdx)
-        , Action(action)
-        , Depot(depot)
-        , LastTrackId(lastTrackId)
+        : TLogShuttleActionBase<TDepot>(traceIdx) 
+        , Action(action) 
+        , Depot(depot) 
+        , LastTrackId(lastTrackId) 
         , LastSpanId(lastSpanId)
-    {
+    { 
         ui64 size = Min<ui64>(Action.GetShuttlesCount() ? Action.GetShuttlesCount() : 1000, MaxShuttles); // Do not allow to allocate too much memory
-        AllShuttles.reserve(size);
-        Parking.reserve(size);
-        for (ui64 i = 0; i < size; i++) {
-            TShuttlePtr shuttle(new TLogShuttle<TDepot>(this));
-            AllShuttles.emplace_back(shuttle);
-            Parking.emplace_back(shuttle);
-        }
-    }
-
-    template <class TDepot>
-    TRunLogShuttleActionExecutor<TDepot>::~TRunLogShuttleActionExecutor() {
-        for (TShuttlePtr& shuttle : AllShuttles) {
-            shuttle->Kill();
-        }
-    }
-
-    template <class TDepot>
-    bool TRunLogShuttleActionExecutor<TDepot>::DoExecute(TOrbit& orbit, const TParams& params) {
-        Y_UNUSED(params);
-        if (TShuttlePtr shuttle = RentShuttle()) {
-            this->Cast(shuttle)->SetIgnore(Action.GetIgnore());
-            orbit.AddShuttle(shuttle);
-        } else {
-            AtomicIncrement(MissedTracks);
-        }
-        return true;
-    }
-
-    template <class TDepot>
+        AllShuttles.reserve(size); 
+        Parking.reserve(size); 
+        for (ui64 i = 0; i < size; i++) { 
+            TShuttlePtr shuttle(new TLogShuttle<TDepot>(this)); 
+            AllShuttles.emplace_back(shuttle); 
+            Parking.emplace_back(shuttle); 
+        } 
+    } 
+ 
+    template <class TDepot> 
+    TRunLogShuttleActionExecutor<TDepot>::~TRunLogShuttleActionExecutor() { 
+        for (TShuttlePtr& shuttle : AllShuttles) { 
+            shuttle->Kill(); 
+        } 
+    } 
+ 
+    template <class TDepot> 
+    bool TRunLogShuttleActionExecutor<TDepot>::DoExecute(TOrbit& orbit, const TParams& params) { 
+        Y_UNUSED(params); 
+        if (TShuttlePtr shuttle = RentShuttle()) { 
+            this->Cast(shuttle)->SetIgnore(Action.GetIgnore()); 
+            orbit.AddShuttle(shuttle); 
+        } else { 
+            AtomicIncrement(MissedTracks); 
+        } 
+        return true; 
+    } 
+ 
+    template <class TDepot> 
     void TRunLogShuttleActionExecutor<TDepot>::DiscardShuttle() {
         AtomicIncrement(MissedTracks);
     }
 
     template <class TDepot>
-    void TRunLogShuttleActionExecutor<TDepot>::RecordShuttle(TLogShuttle<TDepot>* shuttle) {
+    void TRunLogShuttleActionExecutor<TDepot>::RecordShuttle(TLogShuttle<TDepot>* shuttle) { 
         if (Depot == nullptr) {
             return;
         }
-        typename TDepot::TAccessor a(*Depot);
-        if (TTrackLog* trackLog = a.Add()) {
-            *trackLog = shuttle->GetTrackLog();
-            trackLog->Id = AtomicIncrement(*LastTrackId); // Track id is assigned at reporting time
-        }
-    }
-
-    template <class TDepot>
-    TShuttlePtr TRunLogShuttleActionExecutor<TDepot>::RentShuttle() {
-        TGuard<TSpinLock> g(Lock);
-        if (Parking.empty()) {
-            return TShuttlePtr();
-        } else {
-            TShuttlePtr shuttle = Parking.back();
-            Parking.pop_back();
-            return shuttle;
-        }
-    }
-
-    template <class TDepot>
-    void TRunLogShuttleActionExecutor<TDepot>::ParkShuttle(TLogShuttle<TDepot>* shuttle) {
-        shuttle->Clear();
-        TGuard<TSpinLock> g(Lock);
-        Parking.emplace_back(shuttle);
-    }
-
+        typename TDepot::TAccessor a(*Depot); 
+        if (TTrackLog* trackLog = a.Add()) { 
+            *trackLog = shuttle->GetTrackLog(); 
+            trackLog->Id = AtomicIncrement(*LastTrackId); // Track id is assigned at reporting time 
+        } 
+    } 
+ 
+    template <class TDepot> 
+    TShuttlePtr TRunLogShuttleActionExecutor<TDepot>::RentShuttle() { 
+        TGuard<TSpinLock> g(Lock); 
+        if (Parking.empty()) { 
+            return TShuttlePtr(); 
+        } else { 
+            TShuttlePtr shuttle = Parking.back(); 
+            Parking.pop_back(); 
+            return shuttle; 
+        } 
+    } 
+ 
+    template <class TDepot> 
+    void TRunLogShuttleActionExecutor<TDepot>::ParkShuttle(TLogShuttle<TDepot>* shuttle) { 
+        shuttle->Clear(); 
+        TGuard<TSpinLock> g(Lock); 
+        Parking.emplace_back(shuttle); 
+    } 
+ 
     template <class TDepot>
     ui64 TRunLogShuttleActionExecutor<TDepot>::NewSpanId()
     {
         return LastSpanId ? AtomicIncrement(*LastSpanId) : 0;
     }
 
-    ////////////////////////////////////////////////////////////////////////////////
-
-    template <class TDepot>
-    TEditLogShuttleActionExecutor<TDepot>::TEditLogShuttleActionExecutor(ui64 traceIdx, const TEditLogShuttleAction& action)
-        : TLogShuttleActionBase<TDepot>(traceIdx)
-        , Action(action)
-    {
-    }
-
-    template <class TDepot>
-    bool TEditLogShuttleActionExecutor<TDepot>::DoExecute(TOrbit& orbit, const TParams& params) {
-        Y_UNUSED(params);
-        bool ignore = Action.GetIgnore();
-        orbit.ForEachShuttle(this->GetTraceIdx(), [=](IShuttle* shuttle) {
-            this->Cast(shuttle)->SetIgnore(ignore);
-            return true;
-        });
-        return true;
-    }
-
-    ////////////////////////////////////////////////////////////////////////////////
-
-    template <class TDepot>
-    TDropLogShuttleActionExecutor<TDepot>::TDropLogShuttleActionExecutor(ui64 traceIdx, const TDropLogShuttleAction& action)
-        : TLogShuttleActionBase<TDepot>(traceIdx)
-        , Action(action)
-    {
-    }
-
-    template <class TDepot>
-    bool TDropLogShuttleActionExecutor<TDepot>::DoExecute(TOrbit& orbit, const TParams& params) {
-        Y_UNUSED(params);
-        orbit.ForEachShuttle(this->GetTraceIdx(), [](IShuttle*) {
-            return false; // Erase shuttle from orbit
-        });
-        return true;
-    }
-
-}
+    //////////////////////////////////////////////////////////////////////////////// 
+ 
+    template <class TDepot> 
+    TEditLogShuttleActionExecutor<TDepot>::TEditLogShuttleActionExecutor(ui64 traceIdx, const TEditLogShuttleAction& action) 
+        : TLogShuttleActionBase<TDepot>(traceIdx) 
+        , Action(action) 
+    { 
+    } 
+ 
+    template <class TDepot> 
+    bool TEditLogShuttleActionExecutor<TDepot>::DoExecute(TOrbit& orbit, const TParams& params) { 
+        Y_UNUSED(params); 
+        bool ignore = Action.GetIgnore(); 
+        orbit.ForEachShuttle(this->GetTraceIdx(), [=](IShuttle* shuttle) { 
+            this->Cast(shuttle)->SetIgnore(ignore); 
+            return true; 
+        }); 
+        return true; 
+    } 
+ 
+    //////////////////////////////////////////////////////////////////////////////// 
+ 
+    template <class TDepot> 
+    TDropLogShuttleActionExecutor<TDepot>::TDropLogShuttleActionExecutor(ui64 traceIdx, const TDropLogShuttleAction& action) 
+        : TLogShuttleActionBase<TDepot>(traceIdx) 
+        , Action(action) 
+    { 
+    } 
+ 
+    template <class TDepot> 
+    bool TDropLogShuttleActionExecutor<TDepot>::DoExecute(TOrbit& orbit, const TParams& params) { 
+        Y_UNUSED(params); 
+        orbit.ForEachShuttle(this->GetTraceIdx(), [](IShuttle*) { 
+            return false; // Erase shuttle from orbit 
+        }); 
+        return true; 
+    } 
+ 
+} 
diff --git a/library/cpp/lwtrace/lwprobe.h b/library/cpp/lwtrace/lwprobe.h
index 801fc3861b..9149bb8519 100644
--- a/library/cpp/lwtrace/lwprobe.h
+++ b/library/cpp/lwtrace/lwprobe.h
@@ -1,110 +1,110 @@
-#pragma once
-
+#pragma once 
+ 
 #include "control.h"
 #include "probe.h"
 
-#include <ctype.h>
-
-namespace NLWTrace {
-#ifndef LWTRACE_DISABLE
-
-    // Box that holds dynamically created probe
-    // NOTE: must be allocated on heap
-    template <LWTRACE_TEMPLATE_PARAMS>
-    class TLWProbe: public IBox, public TUserProbe<LWTRACE_TEMPLATE_ARGS> {
-    private:
-        // Storage for strings referenced by TEvent
-        TString Name;
-        TString Provider;
-        TVector<TString> Groups;
-        TVector<TString> Params;
-        TVector<TProbeRegistry*> Registries; // Note that we assume that registry lives longer than probe
-
-    public:
-        TLWProbe(const TString& provider, const TString& name, const TVector<TString>& groups, const TVector<TString>& params)
-            : IBox(true)
-            , Name(name)
-            , Provider(provider)
-            , Groups(groups)
-            , Params(params)
-        {
-            // initialize TProbe
-            TProbe& probe = this->Probe;
-            probe.Init();
-
-            // initialize TEvent
+#include <ctype.h> 
+ 
+namespace NLWTrace { 
+#ifndef LWTRACE_DISABLE 
+ 
+    // Box that holds dynamically created probe 
+    // NOTE: must be allocated on heap 
+    template <LWTRACE_TEMPLATE_PARAMS> 
+    class TLWProbe: public IBox, public TUserProbe<LWTRACE_TEMPLATE_ARGS> { 
+    private: 
+        // Storage for strings referenced by TEvent 
+        TString Name; 
+        TString Provider; 
+        TVector<TString> Groups; 
+        TVector<TString> Params; 
+        TVector<TProbeRegistry*> Registries; // Note that we assume that registry lives longer than probe 
+ 
+    public: 
+        TLWProbe(const TString& provider, const TString& name, const TVector<TString>& groups, const TVector<TString>& params) 
+            : IBox(true) 
+            , Name(name) 
+            , Provider(provider) 
+            , Groups(groups) 
+            , Params(params) 
+        { 
+            // initialize TProbe 
+            TProbe& probe = this->Probe; 
+            probe.Init(); 
+ 
+            // initialize TEvent 
             Y_VERIFY(IsCppIdentifier(Name), "probe '%s' is not C++ identifier", Name.data());
             Y_VERIFY(IsCppIdentifier(Provider), "provider '%s' is not C++ identifier in probe %s", Provider.data(), Name.data());
-            probe.Event.Name = Name.c_str();
-            Zero(probe.Event.Groups);
-            probe.Event.Groups[0] = Provider.c_str();
-            auto i = Groups.begin(), ie = Groups.end();
+            probe.Event.Name = Name.c_str(); 
+            Zero(probe.Event.Groups); 
+            probe.Event.Groups[0] = Provider.c_str(); 
+            auto i = Groups.begin(), ie = Groups.end(); 
             Y_VERIFY(Groups.size() < LWTRACE_MAX_GROUPS, "too many groups in probe %s", Name.data());
-            for (size_t n = 1; n < LWTRACE_MAX_GROUPS && i != ie; n++, ++i) {
+            for (size_t n = 1; n < LWTRACE_MAX_GROUPS && i != ie; n++, ++i) { 
                 Y_VERIFY(IsCppIdentifier(*i), "group '%s' is not C++ identifier in probe %s", i->data(), Name.data());
-                probe.Event.Groups[n] = i->c_str();
-            }
-
-            // initialize TSignature
-            using TUsrSign = TUserSignature<LWTRACE_TEMPLATE_ARGS>;
-            Y_VERIFY(TUsrSign::ParamCount == (int)Params.size(), "param count mismatch in probe %s: %d != %d",
+                probe.Event.Groups[n] = i->c_str(); 
+            } 
+ 
+            // initialize TSignature 
+            using TUsrSign = TUserSignature<LWTRACE_TEMPLATE_ARGS>; 
+            Y_VERIFY(TUsrSign::ParamCount == (int)Params.size(), "param count mismatch in probe %s: %d != %d", 
                      Name.data(), int(Params.size()), TUsrSign::ParamCount);
-            TSignature& signature = probe.Event.Signature;
-            signature.ParamTypes = TUsrSign::ParamTypes;
-            Zero(signature.ParamNames);
-            auto j = Params.begin(), je = Params.end();
-            for (size_t n = 0; n < LWTRACE_MAX_PARAMS && j != je; n++, ++j) {
+            TSignature& signature = probe.Event.Signature; 
+            signature.ParamTypes = TUsrSign::ParamTypes; 
+            Zero(signature.ParamNames); 
+            auto j = Params.begin(), je = Params.end(); 
+            for (size_t n = 0; n < LWTRACE_MAX_PARAMS && j != je; n++, ++j) { 
                 Y_VERIFY(IsCppIdentifier(*j), "param '%s' is not C++ identifier in probe %s", j->data(), Name.data());
-                signature.ParamNames[n] = j->c_str();
-            }
-            signature.ParamCount = TUsrSign::ParamCount;
-            signature.SerializeParamsFunc = &TUsrSign::SerializeParams;
-            signature.CloneParamsFunc = &TUsrSign::CloneParams;
-            signature.DestroyParamsFunc = &TUsrSign::DestroyParams;
+                signature.ParamNames[n] = j->c_str(); 
+            } 
+            signature.ParamCount = TUsrSign::ParamCount; 
+            signature.SerializeParamsFunc = &TUsrSign::SerializeParams; 
+            signature.CloneParamsFunc = &TUsrSign::CloneParams; 
+            signature.DestroyParamsFunc = &TUsrSign::DestroyParams; 
             signature.SerializeToPbFunc = &TUsrSign::SerializeToPb;
             signature.DeserializeFromPbFunc = &TUsrSign::DeserializeFromPb;
-
-            // register probe in global registry
-            Register(*Singleton<NLWTrace::TProbeRegistry>());
-        }
-
-        ~TLWProbe() {
-            Unregister();
-        }
-
-        void Register(TProbeRegistry& reg) {
-            Registries.push_back(&reg);
-            reg.AddProbe(TBoxPtr(this)); // NOTE: implied `this' object is created with new operator
-        }
-
-        void Unregister() {
-            // TODO[serxa]: make sure registry never dies before probe it contain
-            // TODO[serxa]: make sure probe never dies before TSession that uses it
-            for (TProbeRegistry* reg : Registries) {
-                reg->RemoveProbe(&this->Probe);
-            }
-        }
-
-        TProbe* GetProbe() override {
-            return &this->Probe;
-        }
-
-    private:
-        static bool IsCppIdentifier(const TString& str) {
-            bool first = true;
-            for (char c : str) {
-                if (first) {
-                    first = false;
-                    if (!(isalpha(c) || c == '_')) {
-                        return false;
-                    }
-                } else if (!(isalnum(c) || c == '_')) {
-                    return false;
-                }
-            }
-            return true;
-        }
-    };
-
-#endif
-}
+ 
+            // register probe in global registry 
+            Register(*Singleton<NLWTrace::TProbeRegistry>()); 
+        } 
+ 
+        ~TLWProbe() { 
+            Unregister(); 
+        } 
+ 
+        void Register(TProbeRegistry& reg) { 
+            Registries.push_back(&reg); 
+            reg.AddProbe(TBoxPtr(this)); // NOTE: implied `this' object is created with new operator 
+        } 
+ 
+        void Unregister() { 
+            // TODO[serxa]: make sure registry never dies before probe it contain 
+            // TODO[serxa]: make sure probe never dies before TSession that uses it 
+            for (TProbeRegistry* reg : Registries) { 
+                reg->RemoveProbe(&this->Probe); 
+            } 
+        } 
+ 
+        TProbe* GetProbe() override { 
+            return &this->Probe; 
+        } 
+ 
+    private: 
+        static bool IsCppIdentifier(const TString& str) { 
+            bool first = true; 
+            for (char c : str) { 
+                if (first) { 
+                    first = false; 
+                    if (!(isalpha(c) || c == '_')) { 
+                        return false; 
+                    } 
+                } else if (!(isalnum(c) || c == '_')) { 
+                    return false; 
+                } 
+            } 
+            return true; 
+        } 
+    }; 
+ 
+#endif 
+} 
diff --git a/library/cpp/lwtrace/mon/analytics/all.h b/library/cpp/lwtrace/mon/analytics/all.h
index 02ddfb83f2..93c8b950ca 100644
--- a/library/cpp/lwtrace/mon/analytics/all.h
+++ b/library/cpp/lwtrace/mon/analytics/all.h
@@ -1,5 +1,5 @@
-#pragma once
-
+#pragma once 
+ 
 #include "csv_output.h"
 #include "data.h"
 #include "html_output.h"
diff --git a/library/cpp/lwtrace/mon/analytics/analytics.cpp b/library/cpp/lwtrace/mon/analytics/analytics.cpp
index 1b25263386..107c939f15 100644
--- a/library/cpp/lwtrace/mon/analytics/analytics.cpp
+++ b/library/cpp/lwtrace/mon/analytics/analytics.cpp
@@ -1,5 +1,5 @@
-#include "all.h"
-
-namespace NAnalytics {
-
-}
+#include "all.h" 
+ 
+namespace NAnalytics { 
+ 
+} 
diff --git a/library/cpp/lwtrace/mon/analytics/csv_output.h b/library/cpp/lwtrace/mon/analytics/csv_output.h
index 90ded32f5d..7e441d9e3f 100644
--- a/library/cpp/lwtrace/mon/analytics/csv_output.h
+++ b/library/cpp/lwtrace/mon/analytics/csv_output.h
@@ -1,52 +1,52 @@
-#pragma once
-
-#include <util/string/printf.h>
-#include <util/stream/str.h>
-#include <util/generic/set.h>
+#pragma once 
+ 
+#include <util/string/printf.h> 
+#include <util/stream/str.h> 
+#include <util/generic/set.h> 
 #include "data.h"
-
-namespace NAnalytics {
-
+ 
+namespace NAnalytics { 
+ 
 inline TString ToCsv(const TTable& in, TString sep = TString("\t"), bool head = true)
-{
+{ 
     TSet<TString> cols;
-    bool hasName = false;
-    for (const TRow& row : in) {
-        hasName = hasName || !row.Name.empty();
-        for (const auto& kv : row) {
-            cols.insert(kv.first);
-        }
-    }
-
-    TStringStream ss;
-    if (head) {
-        bool first = true;
-        if (hasName) {
+    bool hasName = false; 
+    for (const TRow& row : in) { 
+        hasName = hasName || !row.Name.empty(); 
+        for (const auto& kv : row) { 
+            cols.insert(kv.first); 
+        } 
+    } 
+ 
+    TStringStream ss; 
+    if (head) { 
+        bool first = true; 
+        if (hasName) { 
             ss << (first? TString(): sep) << "Name";
-            first = false;
-        }
+            first = false; 
+        } 
         for (const TString& c : cols) {
             ss << (first? TString(): sep) << c;
-            first = false;
-        }
-        ss << Endl;
-    }
-
-    for (const TRow& row : in) {
-        bool first = true;
-        if (hasName) {
+            first = false; 
+        } 
+        ss << Endl; 
+    } 
+ 
+    for (const TRow& row : in) { 
+        bool first = true; 
+        if (hasName) { 
             ss << (first? TString(): sep) << row.Name;
-            first = false;
-        }
+            first = false; 
+        } 
         for (const TString& c : cols) {
             ss << (first? TString(): sep);
-            first = false;
+            first = false; 
             TString value;
             ss << (row.GetAsString(c, value) ? value : TString("-"));
-        }
-        ss << Endl;
-    }
-    return ss.Str();
-}
-
-}
+        } 
+        ss << Endl; 
+    } 
+    return ss.Str(); 
+} 
+ 
+} 
diff --git a/library/cpp/lwtrace/mon/analytics/data.h b/library/cpp/lwtrace/mon/analytics/data.h
index 4b643fe20b..7aeedbdd5e 100644
--- a/library/cpp/lwtrace/mon/analytics/data.h
+++ b/library/cpp/lwtrace/mon/analytics/data.h
@@ -1,15 +1,15 @@
-#pragma once
-
+#pragma once 
+ 
 #include <util/generic/string.h>
-#include <util/generic/hash.h>
+#include <util/generic/hash.h> 
 #include <util/generic/vector.h>
 #include <util/string/builder.h>
 #include <util/string/cast.h>
-
+ 
 #include <variant>
 
-namespace NAnalytics {
-
+namespace NAnalytics { 
+ 
 using TRowValue = std::variant<i64, ui64, double, TString>;
 
 TString ToString(const TRowValue& val) {
@@ -22,7 +22,7 @@ TString ToString(const TRowValue& val) {
 
 struct TRow : public THashMap<TString, TRowValue> {
     TString Name;
-
+ 
     template<typename T>
     bool Get(const TString& name, T& value) const {
         if constexpr (std::is_same_v<double, T>) {
@@ -30,9 +30,9 @@ struct TRow : public THashMap<TString, TRowValue> {
                 value = 1.0;
                 return true;
             }
-        }
-        auto iter = find(name);
-        if (iter != end()) {
+        } 
+        auto iter = find(name); 
+        if (iter != end()) { 
             try {
                 value = std::get<T>(iter->second);
                 return true;
@@ -51,58 +51,58 @@ struct TRow : public THashMap<TString, TRowValue> {
         auto iter = find(name);
         if (iter != end()) {
             value = ToString(iter->second);
-            return true;
-        }
+            return true; 
+        } 
         return false;
-    }
-};
-
+    } 
+}; 
+ 
 using TAttributes = THashMap<TString, TString>;
-
+ 
 struct TTable : public TVector<TRow> {
-    TAttributes Attributes;
-};
-
+    TAttributes Attributes; 
+}; 
+ 
 struct TMatrix : public TVector<double> {
-    size_t Rows;
-    size_t Cols;
-
-    explicit TMatrix(size_t rows = 0, size_t cols = 0)
+    size_t Rows; 
+    size_t Cols; 
+ 
+    explicit TMatrix(size_t rows = 0, size_t cols = 0) 
         : TVector<double>(rows * cols)
-        , Rows(rows)
-        , Cols(cols)
-    {}
-
-    void Reset(size_t rows, size_t cols)
-    {
-        Rows = rows;
-        Cols = cols;
-        clear();
-        resize(rows * cols);
-    }
-
-    double& Cell(size_t row, size_t col)
-    {
-        Y_VERIFY(row < Rows);
-        Y_VERIFY(col < Cols);
-        return operator[](row * Cols + col);
-    }
-
-    double Cell(size_t row, size_t col) const
-    {
-        Y_VERIFY(row < Rows);
-        Y_VERIFY(col < Cols);
-        return operator[](row * Cols + col);
-    }
-
-    double CellSum() const
-    {
-        double sum = 0.0;
-        for (double x : *this) {
-            sum += x;
-        }
-        return sum;
-    }
-};
-
-}
+        , Rows(rows) 
+        , Cols(cols) 
+    {} 
+ 
+    void Reset(size_t rows, size_t cols) 
+    { 
+        Rows = rows; 
+        Cols = cols; 
+        clear(); 
+        resize(rows * cols); 
+    } 
+ 
+    double& Cell(size_t row, size_t col) 
+    { 
+        Y_VERIFY(row < Rows); 
+        Y_VERIFY(col < Cols); 
+        return operator[](row * Cols + col); 
+    } 
+ 
+    double Cell(size_t row, size_t col) const 
+    { 
+        Y_VERIFY(row < Rows); 
+        Y_VERIFY(col < Cols); 
+        return operator[](row * Cols + col); 
+    } 
+ 
+    double CellSum() const 
+    { 
+        double sum = 0.0; 
+        for (double x : *this) { 
+            sum += x; 
+        } 
+        return sum; 
+    } 
+}; 
+ 
+} 
diff --git a/library/cpp/lwtrace/mon/analytics/html_output.h b/library/cpp/lwtrace/mon/analytics/html_output.h
index f775f216b9..37d9fe3724 100644
--- a/library/cpp/lwtrace/mon/analytics/html_output.h
+++ b/library/cpp/lwtrace/mon/analytics/html_output.h
@@ -1,86 +1,86 @@
-#pragma once
-
-#include <util/string/printf.h>
-#include <util/stream/str.h>
-#include <util/generic/set.h>
+#pragma once 
+ 
+#include <util/string/printf.h> 
+#include <util/stream/str.h> 
+#include <util/generic/set.h> 
 #include "data.h"
-
-namespace NAnalytics {
-
+ 
+namespace NAnalytics { 
+ 
 inline TString ToHtml(const TTable& in)
-{
+{ 
     TSet<TString> cols;
-    bool hasName = false;
-    for (const TRow& row : in) {
-        hasName = hasName || !row.Name.empty();
-        for (const auto& kv : row) {
-            cols.insert(kv.first);
-        }
-    }
-
-    TStringStream ss;
-    ss << "<table>";
-    ss << "<thead><tr>";
-    if (hasName) {
-        ss << "<th>Name</th>";
-    }
+    bool hasName = false; 
+    for (const TRow& row : in) { 
+        hasName = hasName || !row.Name.empty(); 
+        for (const auto& kv : row) { 
+            cols.insert(kv.first); 
+        } 
+    } 
+ 
+    TStringStream ss; 
+    ss << "<table>"; 
+    ss << "<thead><tr>"; 
+    if (hasName) { 
+        ss << "<th>Name</th>"; 
+    } 
     for (const TString& c : cols) {
-        ss << "<th>" << c << "</th>";
-    }
-    ss << "</tr></thead><tbody>";
-
-    for (const TRow& row : in) {
-        ss << "<tr>";
-        if (hasName) {
-            ss << "<th>" << row.Name << "</th>";
-        }
+        ss << "<th>" << c << "</th>"; 
+    } 
+    ss << "</tr></thead><tbody>"; 
+ 
+    for (const TRow& row : in) { 
+        ss << "<tr>"; 
+        if (hasName) { 
+            ss << "<th>" << row.Name << "</th>"; 
+        } 
         for (const TString& c : cols) {
             TString value;
             ss << "<td>" << (row.GetAsString(c, value) ? value : TString("-")) << "</td>";
-        }
-        ss << "</tr>";
-    }
-    ss << "</tbody></table>";
-
-    return ss.Str();
-}
-
+        } 
+        ss << "</tr>"; 
+    } 
+    ss << "</tbody></table>"; 
+ 
+    return ss.Str(); 
+} 
+ 
 inline TString ToTransposedHtml(const TTable& in)
-{
+{ 
     TSet<TString> cols;
-    bool hasName = false;
-    for (const TRow& row : in) {
-        hasName = hasName || !row.Name.empty();
-        for (const auto& kv : row) {
-            cols.insert(kv.first);
-        }
-    }
-
-    TStringStream ss;
-    ss << "<table><thead>";
-    if (hasName) {
-        ss << "<tr>";
-        ss << "<th>Name</th>";
-        for (const TRow& row : in) {
-            ss << "<th>" << row.Name << "</th>";
-        }
-        ss << "</tr>";
-    }
-
-    ss << "</thead><tbody>";
-
+    bool hasName = false; 
+    for (const TRow& row : in) { 
+        hasName = hasName || !row.Name.empty(); 
+        for (const auto& kv : row) { 
+            cols.insert(kv.first); 
+        } 
+    } 
+ 
+    TStringStream ss; 
+    ss << "<table><thead>"; 
+    if (hasName) { 
+        ss << "<tr>"; 
+        ss << "<th>Name</th>"; 
+        for (const TRow& row : in) { 
+            ss << "<th>" << row.Name << "</th>"; 
+        } 
+        ss << "</tr>"; 
+    } 
+ 
+    ss << "</thead><tbody>"; 
+ 
     for (const TString& c : cols) {
-        ss << "<tr>";
-        ss << "<th>" << c << "</th>";
-        for (const TRow& row : in) {
+        ss << "<tr>"; 
+        ss << "<th>" << c << "</th>"; 
+        for (const TRow& row : in) { 
             TString value;
             ss << "<td>" << (row.GetAsString(c, value) ? value : TString("-")) << "</td>";
-        }
-        ss << "</tr>";
-    }
-    ss << "</tbody></table>";
-
-    return ss.Str();
-}
-
-}
+        } 
+        ss << "</tr>"; 
+    } 
+    ss << "</tbody></table>"; 
+ 
+    return ss.Str(); 
+} 
+ 
+} 
diff --git a/library/cpp/lwtrace/mon/analytics/json_output.h b/library/cpp/lwtrace/mon/analytics/json_output.h
index 189f9802d3..a857ccfa0c 100644
--- a/library/cpp/lwtrace/mon/analytics/json_output.h
+++ b/library/cpp/lwtrace/mon/analytics/json_output.h
@@ -1,98 +1,98 @@
-#pragma once
-
-#include <util/string/printf.h>
-#include <util/stream/str.h>
-#include <util/string/vector.h>
-#include <util/generic/set.h>
-#include <util/generic/hash_set.h>
+#pragma once 
+ 
+#include <util/string/printf.h> 
+#include <util/stream/str.h> 
+#include <util/string/vector.h> 
+#include <util/generic/set.h> 
+#include <util/generic/hash_set.h> 
 #include "data.h"
 #include "util.h"
-
-namespace NAnalytics {
-
+ 
+namespace NAnalytics { 
+ 
 inline TString ToJsonFlot(const TTable& in, const TString& xno, const TVector<TString>& ynos, const TString& opts = TString())
-{
-    TStringStream ss;
-    ss << "[ ";
-    bool first = true;
-
+{ 
+    TStringStream ss; 
+    ss << "[ "; 
+    bool first = true; 
+ 
     TString xn;
     THashSet<TString> xopts;
-    ParseNameAndOpts(xno, xn, xopts);
+    ParseNameAndOpts(xno, xn, xopts); 
     bool xstack = xopts.contains("stack");
-
+ 
     for (const TString& yno : ynos) {
         TString yn;
         THashSet<TString> yopts;
-        ParseNameAndOpts(yno, yn, yopts);
+        ParseNameAndOpts(yno, yn, yopts); 
         bool ystackOpt = yopts.contains("stack");
-
-        ss << (first? "": ",\n  ") <<  "{ " << opts << (opts? ", ": "") << "\"label\": \"" << yn << "\", \"data\": [ ";
-        bool first2 = true;
+ 
+        ss << (first? "": ",\n  ") <<  "{ " << opts << (opts? ", ": "") << "\"label\": \"" << yn << "\", \"data\": [ "; 
+        bool first2 = true; 
         using TPt = std::tuple<double, double, TString>;
-        std::vector<TPt> pts;
-        for (const TRow& row : in) {
-            double x, y;
-            if (row.Get(xn, x) && row.Get(yn, y)) {
-                pts.emplace_back(x, y, row.Name);
-            }
-        }
-
-        if (xstack) {
-            std::sort(pts.begin(), pts.end(), [] (const TPt& a, const TPt& b) {
-                // At first sort by Name, then by x, then by y
-                return std::make_tuple(std::get<2>(a), std::get<0>(a), std::get<1>(a)) <
-                       std::make_tuple(std::get<2>(b), std::get<0>(b), std::get<1>(b));
-            });
-        } else {
-            std::sort(pts.begin(), pts.end());
-        }
-
-        double x = 0.0, xsum = 0.0;
-        double y = 0.0, ysum = 0.0;
-        for (auto& pt : pts) {
-            if (xstack) {
-                x = xsum;
-                xsum += std::get<0>(pt);
-            } else {
-                x = std::get<0>(pt);
-            }
-
-            if (ystackOpt) {
-                y = ysum;
-                ysum += std::get<1>(pt);
-            } else {
-                y = std::get<1>(pt);
-            }
-
-            ss << (first2? "": ", ") << "["
-               << Sprintf("%.6lf", Finitize(x)) << ", "     // x coordinate
-               << Sprintf("%.6lf", Finitize(y)) << ", "     // y coordinate
-               << "\"" << std::get<2>(pt) << "\", "       // label
-               << Sprintf("%.6lf", std::get<0>(pt)) << ", " // x label (real value)
-               << Sprintf("%.6lf", std::get<1>(pt))         // y label (real value)
-               << "]";
-            first2 = false;
-        }
-        // Add final point
-        if (!first2 && (xstack || ystackOpt)) {
-            if (xstack)
-                x = xsum;
-            if (ystackOpt)
-                y = ysum;
-            ss << (first2? "": ", ") << "["
-               << Sprintf("%.6lf", Finitize(x)) << ", " // x coordinate
-               << Sprintf("%.6lf", Finitize(y)) << ", " // y coordinate
-               << "\"\", "
-               << Sprintf("%.6lf", x) << ", "           // x label (real value)
-               << Sprintf("%.6lf", y)                   // y label (real value)
-               << "]";
-        }
-        ss << " ] }";
-        first = false;
-    }
-    ss << "\n]";
-    return ss.Str();
-}
-
-}
+        std::vector<TPt> pts; 
+        for (const TRow& row : in) { 
+            double x, y; 
+            if (row.Get(xn, x) && row.Get(yn, y)) { 
+                pts.emplace_back(x, y, row.Name); 
+            } 
+        } 
+ 
+        if (xstack) { 
+            std::sort(pts.begin(), pts.end(), [] (const TPt& a, const TPt& b) { 
+                // At first sort by Name, then by x, then by y 
+                return std::make_tuple(std::get<2>(a), std::get<0>(a), std::get<1>(a)) < 
+                       std::make_tuple(std::get<2>(b), std::get<0>(b), std::get<1>(b)); 
+            }); 
+        } else { 
+            std::sort(pts.begin(), pts.end()); 
+        } 
+ 
+        double x = 0.0, xsum = 0.0; 
+        double y = 0.0, ysum = 0.0; 
+        for (auto& pt : pts) { 
+            if (xstack) { 
+                x = xsum; 
+                xsum += std::get<0>(pt); 
+            } else { 
+                x = std::get<0>(pt); 
+            } 
+ 
+            if (ystackOpt) { 
+                y = ysum; 
+                ysum += std::get<1>(pt); 
+            } else { 
+                y = std::get<1>(pt); 
+            } 
+ 
+            ss << (first2? "": ", ") << "[" 
+               << Sprintf("%.6lf", Finitize(x)) << ", "     // x coordinate 
+               << Sprintf("%.6lf", Finitize(y)) << ", "     // y coordinate 
+               << "\"" << std::get<2>(pt) << "\", "       // label 
+               << Sprintf("%.6lf", std::get<0>(pt)) << ", " // x label (real value) 
+               << Sprintf("%.6lf", std::get<1>(pt))         // y label (real value) 
+               << "]"; 
+            first2 = false; 
+        } 
+        // Add final point 
+        if (!first2 && (xstack || ystackOpt)) { 
+            if (xstack) 
+                x = xsum; 
+            if (ystackOpt) 
+                y = ysum; 
+            ss << (first2? "": ", ") << "[" 
+               << Sprintf("%.6lf", Finitize(x)) << ", " // x coordinate 
+               << Sprintf("%.6lf", Finitize(y)) << ", " // y coordinate 
+               << "\"\", " 
+               << Sprintf("%.6lf", x) << ", "           // x label (real value) 
+               << Sprintf("%.6lf", y)                   // y label (real value) 
+               << "]"; 
+        } 
+        ss << " ] }"; 
+        first = false; 
+    } 
+    ss << "\n]"; 
+    return ss.Str(); 
+} 
+ 
+} 
diff --git a/library/cpp/lwtrace/mon/analytics/transform.h b/library/cpp/lwtrace/mon/analytics/transform.h
index f7dc9adb5b..bd80d49d35 100644
--- a/library/cpp/lwtrace/mon/analytics/transform.h
+++ b/library/cpp/lwtrace/mon/analytics/transform.h
@@ -1,204 +1,204 @@
-#pragma once
-
+#pragma once 
+ 
 #include "data.h"
-
-namespace NAnalytics {
-
-template <class TSkip, class TX, class TY>
-inline TTable Histogram(const TTable& in, TSkip skip,
+ 
+namespace NAnalytics { 
+ 
+template <class TSkip, class TX, class TY> 
+inline TTable Histogram(const TTable& in, TSkip skip, 
                  const TString& xn_out, TX x_in,
                  const TString& yn_out, TY y_in,
-                 double x1, double x2, double dx)
-{
-    long buckets = (x2 - x1) / dx;
-    TTable out;
+                 double x1, double x2, double dx) 
+{ 
+    long buckets = (x2 - x1) / dx; 
+    TTable out; 
     TString yn_sum = yn_out + "_sum";
     TString yn_share = yn_out + "_share";
-    double ysum = 0.0;
-    out.resize(buckets);
-    for (size_t i = 0; i < out.size(); i++) {
-        double lb = x1 + dx*i;
-        double ub = lb + dx;
-        out[i].Name = "[" + ToString(lb) + ";" + ToString(ub) + (ub==x2? "]": ")");
-        out[i][xn_out] = (lb + ub) / 2;
-        out[i][yn_sum] = 0.0;
-    }
-    for (const auto& row : in) {
-        if (skip(row)) {
-            continue;
-        }
-        double x = x_in(row);
-        long i = (x - x1) / dx;
-        if (x == x2) { // Special hack to include right edge
-            i--;
-        }
-        double y = y_in(row);
-        ysum += y;
-        if (i >= 0 && i < buckets) {
+    double ysum = 0.0; 
+    out.resize(buckets); 
+    for (size_t i = 0; i < out.size(); i++) { 
+        double lb = x1 + dx*i; 
+        double ub = lb + dx; 
+        out[i].Name = "[" + ToString(lb) + ";" + ToString(ub) + (ub==x2? "]": ")"); 
+        out[i][xn_out] = (lb + ub) / 2; 
+        out[i][yn_sum] = 0.0; 
+    } 
+    for (const auto& row : in) { 
+        if (skip(row)) { 
+            continue; 
+        } 
+        double x = x_in(row); 
+        long i = (x - x1) / dx; 
+        if (x == x2) { // Special hack to include right edge 
+            i--; 
+        } 
+        double y = y_in(row); 
+        ysum += y; 
+        if (i >= 0 && i < buckets) { 
             out[i][yn_sum] = y + out[i].GetOrDefault(yn_sum, 0.0);
-        }
-    }
-    for (TRow& row : out) {
-        if (ysum != 0.0) {
+        } 
+    } 
+    for (TRow& row : out) { 
+        if (ysum != 0.0) { 
             row[yn_share] = row.GetOrDefault(yn_sum, 0.0) / ysum;
-        }
-    }
-    return out;
-}
-
+        } 
+    } 
+    return out; 
+} 
+ 
 inline TTable HistogramAll(const TTable& in, const TString& xn, double x1, double x2, double dx)
-{
-    long buckets = (dx == 0.0? 1: (x2 - x1) / dx);
-    TTable out;
+{ 
+    long buckets = (dx == 0.0? 1: (x2 - x1) / dx); 
+    TTable out; 
     THashMap<TString, double> colSum;
-    out.resize(buckets);
-
+    out.resize(buckets); 
+ 
     TSet<TString> cols;
-    for (auto& row : in) {
-        for (auto& kv : row) {
-            cols.insert(kv.first);
-        }
-    }
-    cols.insert("_count");
-    cols.erase(xn);
-
+    for (auto& row : in) { 
+        for (auto& kv : row) { 
+            cols.insert(kv.first); 
+        } 
+    } 
+    cols.insert("_count"); 
+    cols.erase(xn); 
+ 
     for (const TString& col : cols) {
-        colSum[col] = 0.0;
-    }
-
-    for (size_t i = 0; i < out.size(); i++) {
-        double lb = x1 + dx*i;
-        double ub = lb + dx;
-        TRow& row = out[i];
-        row.Name = "[" + ToString(lb) + ";" + ToString(ub) + (ub==x2? "]": ")");
-        row[xn] = (lb + ub) / 2;
+        colSum[col] = 0.0; 
+    } 
+ 
+    for (size_t i = 0; i < out.size(); i++) { 
+        double lb = x1 + dx*i; 
+        double ub = lb + dx; 
+        TRow& row = out[i]; 
+        row.Name = "[" + ToString(lb) + ";" + ToString(ub) + (ub==x2? "]": ")"); 
+        row[xn] = (lb + ub) / 2; 
         for (const TString& col : cols) {
-            row[col + "_sum"] = 0.0;
-        }
-    }
-    for (const TRow& row_in : in) {
-        double x;
-        if (!row_in.Get(xn, x)) {
-            continue;
-        }
-        long i = (dx == 0.0? 0: (x - x1) / dx);
-        if (x == x2 && dx > 0.0) { // Special hack to include right edge
-            i--;
-        }
-        for (const auto& kv : row_in) {
+            row[col + "_sum"] = 0.0; 
+        } 
+    } 
+    for (const TRow& row_in : in) { 
+        double x; 
+        if (!row_in.Get(xn, x)) { 
+            continue; 
+        } 
+        long i = (dx == 0.0? 0: (x - x1) / dx); 
+        if (x == x2 && dx > 0.0) { // Special hack to include right edge 
+            i--; 
+        } 
+        for (const auto& kv : row_in) { 
             const TString& yn = kv.first;
-            if (yn == xn) {
-                continue;
-            }
+            if (yn == xn) { 
+                continue; 
+            } 
             double y;
             if (!row_in.Get(yn, y)) {
                 continue;
             }
-            colSum[yn] += y;
-            if (i >= 0 && i < buckets) {
+            colSum[yn] += y; 
+            if (i >= 0 && i < buckets) { 
                 out[i][yn + "_cnt"] = out[i].GetOrDefault(yn + "_cnt") + 1;
                 out[i][yn + "_sum"] = out[i].GetOrDefault(yn + "_sum") + y;
                 if (out[i].contains(yn + "_min")) {
                     out[i][yn + "_min"] = Min(y, out[i].GetOrDefault(yn + "_min"));
-                } else {
-                    out[i][yn + "_min"] = y;
-                }
+                } else { 
+                    out[i][yn + "_min"] = y; 
+                } 
                 if (out[i].contains(yn + "_max")) {
                     out[i][yn + "_max"] = Max(y, out[i].GetOrDefault(yn + "_max"));
-                } else {
-                    out[i][yn + "_max"] = y;
-                }
-            }
-        }
-        colSum["_count"]++;
-        if (i >= 0 && i < buckets) {
+                } else { 
+                    out[i][yn + "_max"] = y; 
+                } 
+            } 
+        } 
+        colSum["_count"]++; 
+        if (i >= 0 && i < buckets) { 
             out[i]["_count_sum"] = out[i].GetOrDefault("_count_sum") + 1;
-        }
-    }
-    for (TRow& row : out) {
+        } 
+    } 
+    for (TRow& row : out) { 
         for (const TString& col : cols) {
-            double ysum = colSum[col];
-            if (col != "_count") {
+            double ysum = colSum[col]; 
+            if (col != "_count") { 
                 if (row.GetOrDefault(col + "_cnt") != 0.0) {
                     row[col + "_avg"] = row.GetOrDefault(col + "_sum") / row.GetOrDefault(col + "_cnt");
-                }
-            }
-            if (ysum != 0.0) {
+                } 
+            } 
+            if (ysum != 0.0) { 
                 row[col + "_share"] = row.GetOrDefault(col + "_sum") / ysum;
-            }
-        }
-    }
-    return out;
-}
-
-inline TMatrix CovarianceMatrix(const TTable& in)
-{
+            } 
+        } 
+    } 
+    return out; 
+} 
+ 
+inline TMatrix CovarianceMatrix(const TTable& in) 
+{ 
     TSet<TString> cols;
-    for (auto& row : in) {
-        for (auto& kv : row) {
-            cols.insert(kv.first);
-        }
-    }
-
-    struct TAggregate {
-        size_t Idx = 0;
-        double Sum = 0;
-        size_t Count = 0;
-        double Mean = 0;
-    };
-
+    for (auto& row : in) { 
+        for (auto& kv : row) { 
+            cols.insert(kv.first); 
+        } 
+    } 
+ 
+    struct TAggregate { 
+        size_t Idx = 0; 
+        double Sum = 0; 
+        size_t Count = 0; 
+        double Mean = 0; 
+    }; 
+ 
     THashMap<TString, TAggregate> colAggr;
-
-    size_t colCount = 0;
-    for (const TString& col : cols) {
-        TAggregate& aggr = colAggr[col];
-        aggr.Idx = colCount++;
-    }
-
-    for (const TRow& row : in) {
-        for (const auto& kv : row) {
-            const TString& xn = kv.first;
+ 
+    size_t colCount = 0; 
+    for (const TString& col : cols) { 
+        TAggregate& aggr = colAggr[col]; 
+        aggr.Idx = colCount++; 
+    } 
+ 
+    for (const TRow& row : in) { 
+        for (const auto& kv : row) { 
+            const TString& xn = kv.first; 
             double x;
             if (!row.Get(xn, x)) {
                 continue;
             }
-            TAggregate& aggr = colAggr[xn];
-            aggr.Sum += x;
-            aggr.Count++;
-        }
-    }
-
-    for (auto& kv : colAggr) {
-        TAggregate& aggr = kv.second;
-        aggr.Mean = aggr.Sum / aggr.Count;
-    }
-
-    TMatrix covCount(cols.size(), cols.size());
-    TMatrix cov(cols.size(), cols.size());
-    for (const TRow& row : in) {
-        for (const auto& kv1 : row) {
+            TAggregate& aggr = colAggr[xn]; 
+            aggr.Sum += x; 
+            aggr.Count++; 
+        } 
+    } 
+ 
+    for (auto& kv : colAggr) { 
+        TAggregate& aggr = kv.second; 
+        aggr.Mean = aggr.Sum / aggr.Count; 
+    } 
+ 
+    TMatrix covCount(cols.size(), cols.size()); 
+    TMatrix cov(cols.size(), cols.size()); 
+    for (const TRow& row : in) { 
+        for (const auto& kv1 : row) { 
             double x;
             if (!row.Get(kv1.first, x)) {
                 continue;
             }
-            TAggregate& xaggr = colAggr[kv1.first];
-            for (const auto& kv2 : row) {
+            TAggregate& xaggr = colAggr[kv1.first]; 
+            for (const auto& kv2 : row) { 
                 double y;
                 if (!row.Get(kv2.first, y)) {
                     continue;
                 }                
-                TAggregate& yaggr = colAggr[kv2.first];
-                covCount.Cell(xaggr.Idx, yaggr.Idx)++;
-                cov.Cell(xaggr.Idx, yaggr.Idx) += (x - xaggr.Mean) * (y - yaggr.Mean);
-            }
-        }
-    }
-
-    for (size_t idx = 0; idx < cov.size(); idx++) {
-        cov[idx] /= covCount[idx];
-    }
-
-    return cov;
-}
-
-}
+                TAggregate& yaggr = colAggr[kv2.first]; 
+                covCount.Cell(xaggr.Idx, yaggr.Idx)++; 
+                cov.Cell(xaggr.Idx, yaggr.Idx) += (x - xaggr.Mean) * (y - yaggr.Mean); 
+            } 
+        } 
+    } 
+ 
+    for (size_t idx = 0; idx < cov.size(); idx++) { 
+        cov[idx] /= covCount[idx]; 
+    } 
+ 
+    return cov; 
+} 
+ 
+} 
diff --git a/library/cpp/lwtrace/mon/analytics/util.h b/library/cpp/lwtrace/mon/analytics/util.h
index e07d06cc43..891ef9ad25 100644
--- a/library/cpp/lwtrace/mon/analytics/util.h
+++ b/library/cpp/lwtrace/mon/analytics/util.h
@@ -1,122 +1,122 @@
-#pragma once
-
+#pragma once 
+ 
 #include "data.h"
-#include <util/generic/algorithm.h>
-#include <util/generic/hash_set.h>
-#include <util/string/vector.h>
-
-namespace NAnalytics {
-
-// Get rid of NaNs and INFs
+#include <util/generic/algorithm.h> 
+#include <util/generic/hash_set.h> 
+#include <util/string/vector.h> 
+ 
+namespace NAnalytics { 
+ 
+// Get rid of NaNs and INFs 
 inline double Finitize(double x, double notFiniteValue = 0.0)
-{
-    return isfinite(x)? x: notFiniteValue;
-}
-
+{ 
+    return isfinite(x)? x: notFiniteValue; 
+} 
+ 
 inline void ParseNameAndOpts(const TString& nameAndOpts, TString& name, THashSet<TString>& opts)
-{
-    name.clear();
-    opts.clear();
-    bool first = true;
+{ 
+    name.clear(); 
+    opts.clear(); 
+    bool first = true; 
     auto vs = SplitString(nameAndOpts, "-");
-    for (const auto& s : vs) {
-        if (first) {
-            name = s;
-            first = false;
-        } else {
-            opts.insert(s);
-        }
-    }
-}
-
+    for (const auto& s : vs) { 
+        if (first) { 
+            name = s; 
+            first = false; 
+        } else { 
+            opts.insert(s); 
+        } 
+    } 
+} 
+ 
 inline TString ParseName(const TString& nameAndOpts)
-{
+{ 
     auto vs = SplitString(nameAndOpts, "-");
-    if (vs.empty()) {
+    if (vs.empty()) { 
         return TString();
-    } else {
-        return vs[0];
-    }
-}
-
-template <class R, class T>
+    } else { 
+        return vs[0]; 
+    } 
+} 
+ 
+template <class R, class T> 
 inline R AccumulateIfExist(const TString& name, const TTable& table, R r, T t)
-{
-    ForEach(table.begin(), table.end(), [=,&r] (const TRow& row) {
-        double value;
-        if (row.Get(name, value)) {
-            r = t(r, value);
-        }
-    });
-    return r;
-}
-
+{ 
+    ForEach(table.begin(), table.end(), [=,&r] (const TRow& row) { 
+        double value; 
+        if (row.Get(name, value)) { 
+            r = t(r, value); 
+        } 
+    }); 
+    return r; 
+} 
+ 
 inline double MinValue(const TString& nameAndOpts, const TTable& table)
-{
+{ 
     TString name;
     THashSet<TString> opts;
-    ParseNameAndOpts(nameAndOpts, name, opts);
+    ParseNameAndOpts(nameAndOpts, name, opts); 
     bool stack = opts.contains("stack");
-    if (stack) {
-        return 0.0;
-    } else {
+    if (stack) { 
+        return 0.0; 
+    } else { 
         auto zero = 0.0;
 
         return AccumulateIfExist(name, table, 1.0 / zero /*+inf*/, [] (double x, double y) {
-            return Min(x, y);
-        });
-    }
-}
-
+            return Min(x, y); 
+        }); 
+    } 
+} 
+ 
 inline double MaxValue(const TString& nameAndOpts, const TTable& table)
-{
+{ 
     TString name;
     THashSet<TString> opts;
-    ParseNameAndOpts(nameAndOpts, name, opts);
+    ParseNameAndOpts(nameAndOpts, name, opts); 
     bool stack = opts.contains("stack");
-    if (stack) {
-        return AccumulateIfExist(name, table, 0.0, [] (double x, double y) {
-            return x + y;
-        });
-    } else {
+    if (stack) { 
+        return AccumulateIfExist(name, table, 0.0, [] (double x, double y) { 
+            return x + y; 
+        }); 
+    } else { 
         auto zero = 0.0;
 
         return AccumulateIfExist(name, table, -1.0 / zero /*-inf*/, [] (double x, double y) {
-            return Max(x, y);
-        });
-    }
-}
-
-template <class T>
+            return Max(x, y); 
+        }); 
+    } 
+} 
+ 
+template <class T> 
 inline void Map(TTable& table, const TString& rname, T t)
-{
-    ForEach(table.begin(), table.end(), [=] (TRow& row) {
-        row[rname] = t(row);
-    });
-}
-
+{ 
+    ForEach(table.begin(), table.end(), [=] (TRow& row) { 
+        row[rname] = t(row); 
+    }); 
+} 
+ 
 inline std::function<bool(const TRow&)> HasNoValueFor(TString name)
-{
-    return [=] (const TRow& row) -> bool {
-        double value;
-        return !row.Get(name, value);
-    };
-}
-
-
+{ 
+    return [=] (const TRow& row) -> bool { 
+        double value; 
+        return !row.Get(name, value); 
+    }; 
+} 
+ 
+ 
 inline std::function<double(const TRow&)> GetValueFor(TString name, double defVal = 0.0)
-{
-    return [=] (const TRow& row) -> double {
-        double value;
-        return row.Get(name, value)? value: defVal;
-    };
-}
-
-inline std::function<double(const TRow&)> Const(double defVal = 0.0)
-{
-    return [=] (const TRow&) {
-        return defVal;
-    };
-}
-
-}
+{ 
+    return [=] (const TRow& row) -> double { 
+        double value; 
+        return row.Get(name, value)? value: defVal; 
+    }; 
+} 
+ 
+inline std::function<double(const TRow&)> Const(double defVal = 0.0) 
+{ 
+    return [=] (const TRow&) { 
+        return defVal; 
+    }; 
+} 
+ 
+} 
diff --git a/library/cpp/lwtrace/mon/analytics/ya.make b/library/cpp/lwtrace/mon/analytics/ya.make
index c18e23c8e1..24a04070b7 100644
--- a/library/cpp/lwtrace/mon/analytics/ya.make
+++ b/library/cpp/lwtrace/mon/analytics/ya.make
@@ -1,15 +1,15 @@
-LIBRARY()
-
+LIBRARY() 
+ 
 OWNER(serxa g:kikimr)
-
+ 
 PEERDIR(
 )
 
-SRCS(
-    analytics.cpp
-)
-
-END()
-
-RECURSE(
-)
+SRCS( 
+    analytics.cpp 
+) 
+ 
+END() 
+ 
+RECURSE( 
+) 
diff --git a/library/cpp/lwtrace/mon/mon_lwtrace.cpp b/library/cpp/lwtrace/mon/mon_lwtrace.cpp
index a61ee9ce22..b400103f58 100644
--- a/library/cpp/lwtrace/mon/mon_lwtrace.cpp
+++ b/library/cpp/lwtrace/mon/mon_lwtrace.cpp
@@ -1,8 +1,8 @@
 #include "mon_lwtrace.h"
 
-#include <algorithm>
-#include <iterator>
-
+#include <algorithm> 
+#include <iterator> 
+ 
 #include <google/protobuf/text_format.h>
 #include <library/cpp/lwtrace/mon/analytics/all.h>
 #include <library/cpp/lwtrace/all.h>
@@ -12,14 +12,14 @@
 #include <library/cpp/resource/resource.h>
 #include <library/cpp/string_utils/base64/base64.h>
 #include <library/cpp/html/pcdata/pcdata.h>
-#include <util/string/escape.h>
-#include <util/system/condvar.h>
-#include <util/system/execpath.h>
+#include <util/string/escape.h> 
+#include <util/system/condvar.h> 
+#include <util/system/execpath.h> 
 #include <util/system/hostname.h>
 
 using namespace NMonitoring;
 
-#define WWW_CHECK(cond, ...) \
+#define WWW_CHECK(cond, ...) \ 
     do { \
         if (!(cond)) { \
             ythrow yexception() << Sprintf(__VA_ARGS__); \
@@ -27,1383 +27,1383 @@ using namespace NMonitoring;
     } while (false) \
     /**/
 
-#define WWW_HTML_INNER(out) HTML(out) WITH_SCOPED(tmp, TScopedHtmlInner(out))
-#define WWW_HTML(out) out << NMonitoring::HTTPOKHTML; WWW_HTML_INNER(out)
-
-namespace NLwTraceMonPage {
-
-struct TTrackLogRefs {
-    struct TItem {
-        const TThread::TId ThreadId;
-        const NLWTrace::TLogItem* Ptr;
-
-        TItem()
-            : ThreadId(0)
-            , Ptr(nullptr)
-        {}
-
-        TItem(TThread::TId tid, const NLWTrace::TLogItem& ref)
-            : ThreadId(tid)
-            , Ptr(&ref)
-        {}
-
-        TItem(const TItem& o)
-            : ThreadId(o.ThreadId)
-            , Ptr(o.Ptr)
-        {}
-
-        operator const NLWTrace::TLogItem&() const { return *Ptr; }
-    };
-
+#define WWW_HTML_INNER(out) HTML(out) WITH_SCOPED(tmp, TScopedHtmlInner(out)) 
+#define WWW_HTML(out) out << NMonitoring::HTTPOKHTML; WWW_HTML_INNER(out) 
+
+namespace NLwTraceMonPage { 
+ 
+struct TTrackLogRefs { 
+    struct TItem { 
+        const TThread::TId ThreadId; 
+        const NLWTrace::TLogItem* Ptr; 
+ 
+        TItem() 
+            : ThreadId(0) 
+            , Ptr(nullptr) 
+        {} 
+ 
+        TItem(TThread::TId tid, const NLWTrace::TLogItem& ref) 
+            : ThreadId(tid) 
+            , Ptr(&ref) 
+        {} 
+ 
+        TItem(const TItem& o) 
+            : ThreadId(o.ThreadId) 
+            , Ptr(o.Ptr) 
+        {} 
+ 
+        operator const NLWTrace::TLogItem&() const { return *Ptr; } 
+    }; 
+ 
     using TItems = TVector<TItem>;
-    TItems Items;
-
-    TTrackLogRefs() {}
-
-    TTrackLogRefs(const TTrackLogRefs& other)
-        : Items(other.Items)
-    {}
-
-    void Clear()
-    {
-        Items.clear();
-    }
-
-    ui64 GetTimestampCycles() const
-    {
-        return Items.empty()? 0: Items.front().Ptr->GetTimestampCycles();
-    }
-};
-
-//
-// Templates to treat both NLWTrace::TLogItem and NLWTrace::TTrackLog in the same way (e.g. in TLogQuery)
-//
-
-template <class TLog>
-struct TLogTraits {};
-
-template <>
-struct TLogTraits<NLWTrace::TLogItem> {
-    using TLog = NLWTrace::TLogItem;
-    using const_iterator = const NLWTrace::TLogItem*;
-    using const_reverse_iterator = const NLWTrace::TLogItem*;
-
-    static const_iterator begin(const TLog& log) { return &log; }
-    static const_iterator end(const TLog& log) { return &log + 1; }
-    static const_reverse_iterator rbegin(const TLog& log) { return &log; }
-    static const_reverse_iterator rend(const TLog& log) { return &log + 1; }
-    static bool empty(const TLog&) { return false; }
-    static const NLWTrace::TLogItem& front(const TLog& log) { return log; }
-    static const NLWTrace::TLogItem& back(const TLog& log) { return log; }
-};
-
-template <>
-struct TLogTraits<NLWTrace::TTrackLog> {
-    using TLog = NLWTrace::TTrackLog;
-    using const_iterator = NLWTrace::TTrackLog::TItems::const_iterator;
-    using const_reverse_iterator = NLWTrace::TTrackLog::TItems::const_reverse_iterator;
-
-    static const_iterator begin(const TLog& log) { return log.Items.begin(); }
-    static const_iterator end(const TLog& log) { return log.Items.end(); }
-    static const_reverse_iterator rbegin(const TLog& log) { return log.Items.rbegin(); }
-    static const_reverse_iterator rend(const TLog& log) { return log.Items.rend(); }
-    static bool empty(const TLog& log) { return log.Items.empty(); }
-    static const NLWTrace::TLogItem& front(const TLog& log) { return log.Items.front(); }
-    static const NLWTrace::TLogItem& back(const TLog& log) { return log.Items.back(); }
-};
-
-template <>
-struct TLogTraits<TTrackLogRefs> {
-    using TLog = TTrackLogRefs;
-    using const_iterator = TTrackLogRefs::TItems::const_iterator;
-    using const_reverse_iterator = TTrackLogRefs::TItems::const_reverse_iterator;
-
-    static const_iterator begin(const TLog& log) { return log.Items.begin(); }
-    static const_iterator end(const TLog& log) { return log.Items.end(); }
-    static const_reverse_iterator rbegin(const TLog& log) { return log.Items.rbegin(); }
-    static const_reverse_iterator rend(const TLog& log) { return log.Items.rend(); }
-    static bool empty(const TLog& log) { return log.Items.empty(); }
-    static const NLWTrace::TLogItem& front(const TLog& log) { return log.Items.front(); }
-    static const NLWTrace::TLogItem& back(const TLog& log) { return log.Items.back(); }
-};
-
-/*
- * Log Query Language:
- * Data expressions:
- *  1) myparam[0], myparam[-1] // the first and the last myparam in any probe/provider
- *  2) myparam // the first (the same as [0])
- *  3) PROVIDER..myparam // any probe with myparam in PROVIDER
- *  4) MyProbe._elapsedMs // Ms since track begin for the first MyProbe event
- *  5) PROVIDER.MyProbe._sliceUs // Us since previous event in track for the first PROVIDER.MyProbe event
- */
-
-struct TLogQuery {
-private:
-    enum ESpecialParam {
-        NotSpecial = 0,
-        // The last '*' can be one of: Ms, Us, Ns, Min, Hours, (blank means seconds)
-        // '*Time' can be one of: RTime (since cut ts for given dataset), NTime (negative time since now), Time (since machine start)
-        TrackDuration = 1,  // _track*
-        TrackBeginTime = 2, // _begin*Time*
-        TrackEndTime = 3,   // _end*Time*
-        ElapsedDuration = 4,  // _elapsed*
-        SliceDuration = 5,   // _slice*
-        ThreadTime = 6,      // _thr*Time*
-    };
-
-    template <class TLog, class TTr = TLogTraits<TLog>>
-    struct TExecuteQuery;
-
-    template <class TLog, class TTr>
-    friend struct TExecuteQuery;
-
-    template <class TLog, class TTr>
-    struct TExecuteQuery {
-        const TLogQuery& Query;
-        const TLog* Log = nullptr;
-        bool Reversed;
-
-        i64 Skip;
-        const NLWTrace::TLogItem* Item = nullptr;
-        typename TTr::const_iterator FwdIter;
-        typename TTr::const_reverse_iterator RevIter;
-
-        NLWTrace::TTypedParam Result;
-
-        explicit TExecuteQuery(const TLogQuery& query, const TLog& log)
-            : Query(query)
-            , Log(&log)
-            , Reversed(Query.Index < 0)
-            , Skip(Reversed? -Query.Index - 1: Query.Index)
-            , FwdIter()
-            , RevIter()
-        {}
-
-        void ExecuteQuery()
-        {
-            if (!Reversed) {
-                for (auto i = TTr::begin(*Log), e = TTr::end(*Log); i != e; ++i) {
-                    if (FwdIteration(i)) {
-                        return;
-                    }
-                }
-            } else {
-                for (auto i = TTr::rbegin(*Log), e = TTr::rend(*Log); i != e; ++i) {
-                    if (RevIteration(i)) {
-                        return;
-                    }
-                }
-            }
-        }
-
-        bool FwdIteration(typename TTr::const_iterator it)
-        {
-            FwdIter = it;
-            Item = &*it;
-            return ProcessItem();
-        }
-
-        bool RevIteration(typename TTr::const_reverse_iterator it)
-        {
-            RevIter = it;
-            Item = &*it;
-            return ProcessItem();
-        }
-
-        bool ProcessItem()
-        {
-            if (Query.Provider && Query.Provider != Item->Probe->Event.GetProvider()) {
-                return false;
-            }
-            if (Query.Probe && Query.Probe != Item->Probe->Event.Name) {
-                return false;
-            }
-            switch (Query.SpecialParam) {
-            case NotSpecial:
-                if (Item->Probe->Event.Signature.FindParamIndex(Query.ParamName) != size_t(-1)) {
-                    break; // param found
-                } else {
-                    return false; // param not found
-                }
-            case TrackDuration: Y_FAIL();
-            case TrackBeginTime: Y_FAIL();
-            case TrackEndTime: Y_FAIL();
-            case ElapsedDuration: break;
-            case SliceDuration: break;
-            case ThreadTime: break;
-            }
-            if (Skip > 0) {
-                Skip--;
-                return false;
-            }
-            switch (Query.SpecialParam) {
-            case NotSpecial:
-                Result = NLWTrace::TTypedParam(Item->GetParam(Query.ParamName));
-                return true;
-            case TrackDuration: Y_FAIL();
-            case TrackBeginTime: Y_FAIL();
-            case TrackEndTime: Y_FAIL();
-            case ElapsedDuration:
-                Result = NLWTrace::TTypedParam(Query.Duration(
-                    Log->GetTimestampCycles(),
-                    Item->GetTimestampCycles()));
-                return true;
-            case SliceDuration:
-                Result = NLWTrace::TTypedParam(Query.Duration(
-                    PrevOrSame().GetTimestampCycles(),
-                    Item->GetTimestampCycles()));
-                return true;
-            case ThreadTime:
-                Result = NLWTrace::TTypedParam(Query.Instant(Item->GetTimestampCycles()));
-                return true;
-            }
-            return true;
-        }
-
-        const NLWTrace::TLogItem& PrevOrSame() const
-        {
-            if (!Reversed) {
-                auto i = FwdIter;
-                if (i != TTr::begin(*Log)) {
-                    i--;
-                }
-                return *i;
-            } else {
-                auto j = RevIter + 1;
-                if (j == TTr::rend(*Log)) {
-                    return *RevIter;
-                }
-                return *j;
-            }
-        }
-    };
-
+    TItems Items; 
+ 
+    TTrackLogRefs() {} 
+ 
+    TTrackLogRefs(const TTrackLogRefs& other) 
+        : Items(other.Items) 
+    {} 
+ 
+    void Clear() 
+    { 
+        Items.clear(); 
+    } 
+ 
+    ui64 GetTimestampCycles() const 
+    { 
+        return Items.empty()? 0: Items.front().Ptr->GetTimestampCycles(); 
+    } 
+}; 
+ 
+// 
+// Templates to treat both NLWTrace::TLogItem and NLWTrace::TTrackLog in the same way (e.g. in TLogQuery) 
+// 
+ 
+template <class TLog> 
+struct TLogTraits {}; 
+ 
+template <> 
+struct TLogTraits<NLWTrace::TLogItem> { 
+    using TLog = NLWTrace::TLogItem; 
+    using const_iterator = const NLWTrace::TLogItem*; 
+    using const_reverse_iterator = const NLWTrace::TLogItem*; 
+ 
+    static const_iterator begin(const TLog& log) { return &log; } 
+    static const_iterator end(const TLog& log) { return &log + 1; } 
+    static const_reverse_iterator rbegin(const TLog& log) { return &log; } 
+    static const_reverse_iterator rend(const TLog& log) { return &log + 1; } 
+    static bool empty(const TLog&) { return false; } 
+    static const NLWTrace::TLogItem& front(const TLog& log) { return log; } 
+    static const NLWTrace::TLogItem& back(const TLog& log) { return log; } 
+}; 
+ 
+template <> 
+struct TLogTraits<NLWTrace::TTrackLog> { 
+    using TLog = NLWTrace::TTrackLog; 
+    using const_iterator = NLWTrace::TTrackLog::TItems::const_iterator; 
+    using const_reverse_iterator = NLWTrace::TTrackLog::TItems::const_reverse_iterator; 
+ 
+    static const_iterator begin(const TLog& log) { return log.Items.begin(); } 
+    static const_iterator end(const TLog& log) { return log.Items.end(); } 
+    static const_reverse_iterator rbegin(const TLog& log) { return log.Items.rbegin(); } 
+    static const_reverse_iterator rend(const TLog& log) { return log.Items.rend(); } 
+    static bool empty(const TLog& log) { return log.Items.empty(); } 
+    static const NLWTrace::TLogItem& front(const TLog& log) { return log.Items.front(); } 
+    static const NLWTrace::TLogItem& back(const TLog& log) { return log.Items.back(); } 
+}; 
+ 
+template <> 
+struct TLogTraits<TTrackLogRefs> { 
+    using TLog = TTrackLogRefs; 
+    using const_iterator = TTrackLogRefs::TItems::const_iterator; 
+    using const_reverse_iterator = TTrackLogRefs::TItems::const_reverse_iterator; 
+ 
+    static const_iterator begin(const TLog& log) { return log.Items.begin(); } 
+    static const_iterator end(const TLog& log) { return log.Items.end(); } 
+    static const_reverse_iterator rbegin(const TLog& log) { return log.Items.rbegin(); } 
+    static const_reverse_iterator rend(const TLog& log) { return log.Items.rend(); } 
+    static bool empty(const TLog& log) { return log.Items.empty(); } 
+    static const NLWTrace::TLogItem& front(const TLog& log) { return log.Items.front(); } 
+    static const NLWTrace::TLogItem& back(const TLog& log) { return log.Items.back(); } 
+}; 
+ 
+/* 
+ * Log Query Language: 
+ * Data expressions: 
+ *  1) myparam[0], myparam[-1] // the first and the last myparam in any probe/provider 
+ *  2) myparam // the first (the same as [0]) 
+ *  3) PROVIDER..myparam // any probe with myparam in PROVIDER 
+ *  4) MyProbe._elapsedMs // Ms since track begin for the first MyProbe event 
+ *  5) PROVIDER.MyProbe._sliceUs // Us since previous event in track for the first PROVIDER.MyProbe event 
+ */ 
+ 
+struct TLogQuery { 
+private: 
+    enum ESpecialParam { 
+        NotSpecial = 0, 
+        // The last '*' can be one of: Ms, Us, Ns, Min, Hours, (blank means seconds) 
+        // '*Time' can be one of: RTime (since cut ts for given dataset), NTime (negative time since now), Time (since machine start) 
+        TrackDuration = 1,  // _track* 
+        TrackBeginTime = 2, // _begin*Time* 
+        TrackEndTime = 3,   // _end*Time* 
+        ElapsedDuration = 4,  // _elapsed* 
+        SliceDuration = 5,   // _slice* 
+        ThreadTime = 6,      // _thr*Time* 
+    }; 
+ 
+    template <class TLog, class TTr = TLogTraits<TLog>> 
+    struct TExecuteQuery; 
+ 
+    template <class TLog, class TTr> 
+    friend struct TExecuteQuery; 
+ 
+    template <class TLog, class TTr> 
+    struct TExecuteQuery { 
+        const TLogQuery& Query; 
+        const TLog* Log = nullptr; 
+        bool Reversed; 
+ 
+        i64 Skip; 
+        const NLWTrace::TLogItem* Item = nullptr; 
+        typename TTr::const_iterator FwdIter; 
+        typename TTr::const_reverse_iterator RevIter; 
+ 
+        NLWTrace::TTypedParam Result; 
+ 
+        explicit TExecuteQuery(const TLogQuery& query, const TLog& log) 
+            : Query(query) 
+            , Log(&log) 
+            , Reversed(Query.Index < 0) 
+            , Skip(Reversed? -Query.Index - 1: Query.Index) 
+            , FwdIter() 
+            , RevIter() 
+        {} 
+ 
+        void ExecuteQuery() 
+        { 
+            if (!Reversed) { 
+                for (auto i = TTr::begin(*Log), e = TTr::end(*Log); i != e; ++i) { 
+                    if (FwdIteration(i)) { 
+                        return; 
+                    } 
+                } 
+            } else { 
+                for (auto i = TTr::rbegin(*Log), e = TTr::rend(*Log); i != e; ++i) { 
+                    if (RevIteration(i)) { 
+                        return; 
+                    } 
+                } 
+            } 
+        } 
+ 
+        bool FwdIteration(typename TTr::const_iterator it) 
+        { 
+            FwdIter = it; 
+            Item = &*it; 
+            return ProcessItem(); 
+        } 
+ 
+        bool RevIteration(typename TTr::const_reverse_iterator it) 
+        { 
+            RevIter = it; 
+            Item = &*it; 
+            return ProcessItem(); 
+        } 
+ 
+        bool ProcessItem() 
+        { 
+            if (Query.Provider && Query.Provider != Item->Probe->Event.GetProvider()) { 
+                return false; 
+            } 
+            if (Query.Probe && Query.Probe != Item->Probe->Event.Name) { 
+                return false; 
+            } 
+            switch (Query.SpecialParam) { 
+            case NotSpecial: 
+                if (Item->Probe->Event.Signature.FindParamIndex(Query.ParamName) != size_t(-1)) { 
+                    break; // param found 
+                } else { 
+                    return false; // param not found 
+                } 
+            case TrackDuration: Y_FAIL(); 
+            case TrackBeginTime: Y_FAIL(); 
+            case TrackEndTime: Y_FAIL(); 
+            case ElapsedDuration: break; 
+            case SliceDuration: break; 
+            case ThreadTime: break; 
+            } 
+            if (Skip > 0) { 
+                Skip--; 
+                return false; 
+            } 
+            switch (Query.SpecialParam) { 
+            case NotSpecial: 
+                Result = NLWTrace::TTypedParam(Item->GetParam(Query.ParamName)); 
+                return true; 
+            case TrackDuration: Y_FAIL(); 
+            case TrackBeginTime: Y_FAIL(); 
+            case TrackEndTime: Y_FAIL(); 
+            case ElapsedDuration: 
+                Result = NLWTrace::TTypedParam(Query.Duration( 
+                    Log->GetTimestampCycles(), 
+                    Item->GetTimestampCycles())); 
+                return true; 
+            case SliceDuration: 
+                Result = NLWTrace::TTypedParam(Query.Duration( 
+                    PrevOrSame().GetTimestampCycles(), 
+                    Item->GetTimestampCycles())); 
+                return true; 
+            case ThreadTime: 
+                Result = NLWTrace::TTypedParam(Query.Instant(Item->GetTimestampCycles())); 
+                return true; 
+            } 
+            return true; 
+        } 
+ 
+        const NLWTrace::TLogItem& PrevOrSame() const 
+        { 
+            if (!Reversed) { 
+                auto i = FwdIter; 
+                if (i != TTr::begin(*Log)) { 
+                    i--; 
+                } 
+                return *i; 
+            } else { 
+                auto j = RevIter + 1; 
+                if (j == TTr::rend(*Log)) { 
+                    return *RevIter; 
+                } 
+                return *j; 
+            } 
+        } 
+    }; 
+ 
     TString Text;
     TString Provider;
     TString Probe;
     TString ParamName;
-    ESpecialParam SpecialParam = NotSpecial;
-    i64 Index = 0;
-    double TimeUnitSec = 1.0;
-    i64 ZeroTs = 0;
-    i64 RTimeZeroTs = 0;
-    i64 NTimeZeroTs = 0;
-
-public:
-    TLogQuery() {}
-
+    ESpecialParam SpecialParam = NotSpecial; 
+    i64 Index = 0; 
+    double TimeUnitSec = 1.0; 
+    i64 ZeroTs = 0; 
+    i64 RTimeZeroTs = 0; 
+    i64 NTimeZeroTs = 0; 
+ 
+public: 
+    TLogQuery() {} 
+ 
     explicit TLogQuery(const TString& text)
-        : Text(text)
-    {
-        try {
-            if (!Text.empty()) {
-                ParseQuery(Text);
-            }
-        } catch (...) {
-            ythrow yexception()
-                << CurrentExceptionMessage()
-                << " while parsing track log query: "
-                << Text;
-        }
-    }
-
-    operator bool() const
-    {
-        return !Text.empty();
-    }
-
-    template <class TLog>
-    NLWTrace::TTypedParam ExecuteQuery(const TLog& log) const
-    {
-        using TTr = TLogTraits<TLog>;
-
-        WWW_CHECK(Text, "execute of empty log query");
-        if (TTr::empty(log)) {
-            return NLWTrace::TTypedParam();
-        }
-
-        if (SpecialParam == TrackDuration) {
-            return Duration(
-                log.GetTimestampCycles(),
-                TTr::back(log).GetTimestampCycles());
-        } else if (SpecialParam == TrackBeginTime) {
-            return Instant(log.GetTimestampCycles());
-        } else if (SpecialParam == TrackEndTime) {
-            return Instant(TTr::back(log).GetTimestampCycles());
-        }
-
-        TExecuteQuery<TLog, TTr> exec(*this, log);
-        exec.ExecuteQuery();
-        return exec.Result;
-    }
-
-private:
-    NLWTrace::TTypedParam Duration(ui64 ts1, ui64 ts2) const
-    {
-        double sec = NHPTimer::GetSeconds(ts1 < ts2? ts2 - ts1: 0);
-        return NLWTrace::TTypedParam(sec / TimeUnitSec);
-    }
-
-    NLWTrace::TTypedParam Instant(ui64 ts) const
-    {
-        double sec = NHPTimer::GetSeconds(i64(ts) - ZeroTs);
-        return NLWTrace::TTypedParam(sec / TimeUnitSec);
-    }
-
+        : Text(text) 
+    { 
+        try { 
+            if (!Text.empty()) { 
+                ParseQuery(Text); 
+            } 
+        } catch (...) { 
+            ythrow yexception() 
+                << CurrentExceptionMessage() 
+                << " while parsing track log query: " 
+                << Text; 
+        } 
+    } 
+ 
+    operator bool() const 
+    { 
+        return !Text.empty(); 
+    } 
+ 
+    template <class TLog> 
+    NLWTrace::TTypedParam ExecuteQuery(const TLog& log) const 
+    { 
+        using TTr = TLogTraits<TLog>; 
+ 
+        WWW_CHECK(Text, "execute of empty log query"); 
+        if (TTr::empty(log)) { 
+            return NLWTrace::TTypedParam(); 
+        } 
+ 
+        if (SpecialParam == TrackDuration) { 
+            return Duration( 
+                log.GetTimestampCycles(), 
+                TTr::back(log).GetTimestampCycles()); 
+        } else if (SpecialParam == TrackBeginTime) { 
+            return Instant(log.GetTimestampCycles()); 
+        } else if (SpecialParam == TrackEndTime) { 
+            return Instant(TTr::back(log).GetTimestampCycles()); 
+        } 
+ 
+        TExecuteQuery<TLog, TTr> exec(*this, log); 
+        exec.ExecuteQuery(); 
+        return exec.Result; 
+    } 
+ 
+private: 
+    NLWTrace::TTypedParam Duration(ui64 ts1, ui64 ts2) const 
+    { 
+        double sec = NHPTimer::GetSeconds(ts1 < ts2? ts2 - ts1: 0); 
+        return NLWTrace::TTypedParam(sec / TimeUnitSec); 
+    } 
+ 
+    NLWTrace::TTypedParam Instant(ui64 ts) const 
+    { 
+        double sec = NHPTimer::GetSeconds(i64(ts) - ZeroTs); 
+        return NLWTrace::TTypedParam(sec / TimeUnitSec); 
+    } 
+ 
     void ParseQuery(const TString& s)
-    {
+    { 
         auto parts = SplitString(s, ".");
-        WWW_CHECK(parts.size() <= 3, "too many name specifiers");
+        WWW_CHECK(parts.size() <= 3, "too many name specifiers"); 
         ParseParamSelector(parts.back());
-        if (parts.size() >= 2) {
-            ParseProbeSelector(parts[parts.size() - 2]);
-        }
-        if (parts.size() >= 3) {
-            ParseProviderSelector(parts[parts.size() - 3]);
-        }
-    }
-
+        if (parts.size() >= 2) { 
+            ParseProbeSelector(parts[parts.size() - 2]); 
+        } 
+        if (parts.size() >= 3) { 
+            ParseProviderSelector(parts[parts.size() - 3]); 
+        } 
+    } 
+ 
     void ParseParamSelector(const TString& s)
-    {
-        size_t bracket = s.find('[');
+    { 
+        size_t bracket = s.find('['); 
         if (bracket == TString::npos) {
-            ParseParamName(s);
-            Index = 0;
-        } else {
-            ParseParamName(s.substr(0, bracket));
-            size_t bracket2 = s.find(']', bracket);
+            ParseParamName(s); 
+            Index = 0; 
+        } else { 
+            ParseParamName(s.substr(0, bracket)); 
+            size_t bracket2 = s.find(']', bracket); 
             WWW_CHECK(bracket2 != TString::npos, "closing braket ']' is missing");
-            Index = FromString<i64>(s.substr(bracket + 1, bracket2 - bracket - 1));
-        }
-    }
-
+            Index = FromString<i64>(s.substr(bracket + 1, bracket2 - bracket - 1)); 
+        } 
+    } 
+ 
     void ParseParamName(const TString& s)
-    {
-        ParamName = s;
+    { 
+        ParamName = s; 
         TString paramName = s;
-
+ 
         const static TVector<std::pair<TString, ESpecialParam>> specials = {
-            { "_track", TrackDuration },
-            { "_begin", TrackBeginTime },
-            { "_end", TrackEndTime },
-            { "_elapsed", ElapsedDuration },
-            { "_slice", SliceDuration },
-            { "_thr", ThreadTime }
-        };
-
-        // Check for special params
-        SpecialParam = NotSpecial;
-        for (const auto& p : specials) {
-            if (paramName.StartsWith(p.first)) {
-                SpecialParam = p.second;
+            { "_track", TrackDuration }, 
+            { "_begin", TrackBeginTime }, 
+            { "_end", TrackEndTime }, 
+            { "_elapsed", ElapsedDuration }, 
+            { "_slice", SliceDuration }, 
+            { "_thr", ThreadTime } 
+        }; 
+ 
+        // Check for special params 
+        SpecialParam = NotSpecial; 
+        for (const auto& p : specials) { 
+            if (paramName.StartsWith(p.first)) { 
+                SpecialParam = p.second; 
                 paramName.erase(0, p.first.size());
-                break;
-            }
-        }
-
-        if (SpecialParam == NotSpecial) {
-            return;
-        }
-
+                break; 
+            } 
+        } 
+ 
+        if (SpecialParam == NotSpecial) { 
+            return; 
+        } 
+ 
         const static TVector<std::pair<TString, double>> timeUnits = {
-            { "Ms", 1e-3 },
-            { "Us", 1e-6 },
-            { "Ns", 1e-9 },
-            { "Min", 60.0 },
-            { "Hours", 3600.0 }
-        };
-
-        // Parse units for special params
-        TimeUnitSec = 1.0;
-        for (const auto& p : timeUnits) {
-            if (paramName.EndsWith(p.first)) {
-                TimeUnitSec = p.second;
+            { "Ms", 1e-3 }, 
+            { "Us", 1e-6 }, 
+            { "Ns", 1e-9 }, 
+            { "Min", 60.0 }, 
+            { "Hours", 3600.0 } 
+        }; 
+ 
+        // Parse units for special params 
+        TimeUnitSec = 1.0; 
+        for (const auto& p : timeUnits) { 
+            if (paramName.EndsWith(p.first)) { 
+                TimeUnitSec = p.second; 
                 paramName.erase(paramName.size() - p.first.size());
-                break;
-            }
-        }
-
-        if (SpecialParam == ThreadTime ||
-                SpecialParam == TrackBeginTime ||
-                SpecialParam == TrackEndTime)
-        {
-            // Parse time zero for special instant params
+                break; 
+            } 
+        } 
+ 
+        if (SpecialParam == ThreadTime || 
+                SpecialParam == TrackBeginTime || 
+                SpecialParam == TrackEndTime) 
+        { 
+            // Parse time zero for special instant params 
             const TVector<std::pair<TString, i64>> timeZeros = {
-                { "RTime", RTimeZeroTs },
-                { "NTime", NTimeZeroTs },
-                { "Time", 0ll }
-            };
-            ZeroTs = -1;
-            for (const auto& p : timeZeros) {
-                if (paramName.EndsWith(p.first)) {
-                    ZeroTs = p.second;
+                { "RTime", RTimeZeroTs }, 
+                { "NTime", NTimeZeroTs }, 
+                { "Time", 0ll } 
+            }; 
+            ZeroTs = -1; 
+            for (const auto& p : timeZeros) { 
+                if (paramName.EndsWith(p.first)) { 
+                    ZeroTs = p.second; 
                     paramName.erase(paramName.size() - p.first.size());
-                    break;
-                }
-            }
+                    break; 
+                } 
+            } 
             WWW_CHECK(ZeroTs != -1, "wrong special param name (postfix '*Time' required): %s", s.data());
-        }
-
+        } 
+ 
         WWW_CHECK(paramName.empty(), "wrong special param name: %s", s.data());
-    }
-
+    } 
+ 
     void ParseProbeSelector(const TString& s)
-    {
-        Probe = s;
-    }
-
+    { 
+        Probe = s; 
+    } 
+ 
     void ParseProviderSelector(const TString& s)
-    {
-        Provider = s;
-    }
-};
-
+    { 
+        Provider = s; 
+    } 
+}; 
+ 
 using TVariants = TVector<std::pair<TString, TString>>;
 using TTags = TSet<TString>;
-
+ 
 TString GetProbeName(const NLWTrace::TProbe* probe, const char* sep = ".")
-{
+{ 
     return TString(probe->Event.GetProvider()) + sep + probe->Event.Name;
-}
-
-struct TAdHocTraceConfig {
-    NLWTrace::TQuery Cfg;
-
-    TAdHocTraceConfig() {} // Invalid config
-
-    TAdHocTraceConfig(ui16 logSize, ui64 logDurationUs, bool logShuttle)
-    {
-        auto block = Cfg.AddBlocks(); // Create one block to distinguish valid config
-        if (logSize) {
-            Cfg.SetPerThreadLogSize(logSize);
-        }
-        if (logDurationUs) {
-            Cfg.SetLogDurationUs(logDurationUs);
-        }
-        if (logShuttle) {
-            block->AddAction()->MutableRunLogShuttleAction();
-        }
-    }
-
+} 
+ 
+struct TAdHocTraceConfig { 
+    NLWTrace::TQuery Cfg; 
+ 
+    TAdHocTraceConfig() {} // Invalid config 
+ 
+    TAdHocTraceConfig(ui16 logSize, ui64 logDurationUs, bool logShuttle) 
+    { 
+        auto block = Cfg.AddBlocks(); // Create one block to distinguish valid config 
+        if (logSize) { 
+            Cfg.SetPerThreadLogSize(logSize); 
+        } 
+        if (logDurationUs) { 
+            Cfg.SetLogDurationUs(logDurationUs); 
+        } 
+        if (logShuttle) { 
+            block->AddAction()->MutableRunLogShuttleAction(); 
+        } 
+    } 
+ 
     TAdHocTraceConfig(const TString& provider, const TString& probe, ui16 logSize = 0, ui64 logDurationUs = 0, bool logShuttle = false)
-        : TAdHocTraceConfig(logSize, logDurationUs, logShuttle)
-    {
-        auto block = Cfg.MutableBlocks(0);
-        auto pdesc = block->MutableProbeDesc();
-        pdesc->SetProvider(provider);
-        pdesc->SetName(probe);
-    }
-
+        : TAdHocTraceConfig(logSize, logDurationUs, logShuttle) 
+    { 
+        auto block = Cfg.MutableBlocks(0); 
+        auto pdesc = block->MutableProbeDesc(); 
+        pdesc->SetProvider(provider); 
+        pdesc->SetName(probe); 
+    } 
+ 
     explicit TAdHocTraceConfig(const TString& group, ui16 logSize = 0, ui64 logDurationUs = 0, bool logShuttle = false)
-        : TAdHocTraceConfig(logSize, logDurationUs, logShuttle)
-    {
-        auto block = Cfg.MutableBlocks(0);
-        auto pdesc = block->MutableProbeDesc();
-        pdesc->SetGroup(group);
-    }
-
+        : TAdHocTraceConfig(logSize, logDurationUs, logShuttle) 
+    { 
+        auto block = Cfg.MutableBlocks(0); 
+        auto pdesc = block->MutableProbeDesc(); 
+        pdesc->SetGroup(group); 
+    } 
+ 
     TString Id() const
-    {
-        TStringStream ss;
-        for (size_t blockIdx = 0; blockIdx < Cfg.BlocksSize(); blockIdx++) {
-            if (!ss.Str().empty()) {
-                ss << "/";
-            }
-            auto block = Cfg.GetBlocks(blockIdx);
-            auto pdesc = block.GetProbeDesc();
+    { 
+        TStringStream ss; 
+        for (size_t blockIdx = 0; blockIdx < Cfg.BlocksSize(); blockIdx++) { 
+            if (!ss.Str().empty()) { 
+                ss << "/"; 
+            } 
+            auto block = Cfg.GetBlocks(blockIdx); 
+            auto pdesc = block.GetProbeDesc(); 
             if (pdesc.GetProvider()) {
-                ss << "." << pdesc.GetProvider() << "." << pdesc.GetName();
+                ss << "." << pdesc.GetProvider() << "." << pdesc.GetName(); 
             } else if (pdesc.GetGroup()) {
-                ss << ".Group." << pdesc.GetGroup();
-            }
-            // TODO[serxa]: handle predicate
-            for (size_t actionIdx = 0; actionIdx < block.ActionSize(); actionIdx++) {
-                const NLWTrace::TAction& action = block.GetAction(actionIdx);
-                if (action.HasRunLogShuttleAction()) {
-                    auto ls = action.GetRunLogShuttleAction();
-                    ss << ".alsr";
-                    if (ls.GetIgnore()) {
-                        ss << "-i";
-                    }
+                ss << ".Group." << pdesc.GetGroup(); 
+            } 
+            // TODO[serxa]: handle predicate 
+            for (size_t actionIdx = 0; actionIdx < block.ActionSize(); actionIdx++) { 
+                const NLWTrace::TAction& action = block.GetAction(actionIdx); 
+                if (action.HasRunLogShuttleAction()) { 
+                    auto ls = action.GetRunLogShuttleAction(); 
+                    ss << ".alsr"; 
+                    if (ls.GetIgnore()) { 
+                        ss << "-i"; 
+                    } 
                     if (ls.GetShuttlesCount()) {
-                        ss << "-s" << ls.GetShuttlesCount();
-                    }
+                        ss << "-s" << ls.GetShuttlesCount(); 
+                    } 
                     if (ls.GetMaxTrackLength()) {
-                        ss << "-t" << ls.GetMaxTrackLength();
-                    }
-                } else if (action.HasEditLogShuttleAction()) {
-                    auto ls = action.GetEditLogShuttleAction();
-                    ss << ".alse";
-                    if (ls.GetIgnore()) {
-                        ss << "-i";
-                    }
-                } else if (action.HasDropLogShuttleAction()) {
-                    ss << ".alsd";
-                }
-            }
-        }
+                        ss << "-t" << ls.GetMaxTrackLength(); 
+                    } 
+                } else if (action.HasEditLogShuttleAction()) { 
+                    auto ls = action.GetEditLogShuttleAction(); 
+                    ss << ".alse"; 
+                    if (ls.GetIgnore()) { 
+                        ss << "-i"; 
+                    } 
+                } else if (action.HasDropLogShuttleAction()) { 
+                    ss << ".alsd"; 
+                } 
+            } 
+        } 
         if (Cfg.GetPerThreadLogSize()) {
-            ss << ".l" << Cfg.GetPerThreadLogSize();
-        }
+            ss << ".l" << Cfg.GetPerThreadLogSize(); 
+        } 
         if (Cfg.GetLogDurationUs()) {
-            ui64 logDurationUs = Cfg.GetLogDurationUs();
-            if (logDurationUs % (60 * 1000 * 1000) == 0)
-                ss << ".d" << logDurationUs / (60 * 1000 * 1000) << "m";
-            if (logDurationUs % (1000 * 1000) == 0)
-                ss << ".d" << logDurationUs / (1000 * 1000) << "s";
-            else if (logDurationUs % 1000 == 0)
-                ss << ".d" << logDurationUs / 1000 << "ms";
-            else
-                ss << ".d" << logDurationUs << "us";
-        }
-        return ss.Str();
-    }
-
-    bool IsValid() const
-    {
-        return Cfg.BlocksSize() > 0;
-    }
-
-    NLWTrace::TQuery Query() const
-    {
-        if (!IsValid()) {
-            ythrow yexception() << "invalid adhoc trace config";
-        }
-        return Cfg;
-    }
-
+            ui64 logDurationUs = Cfg.GetLogDurationUs(); 
+            if (logDurationUs % (60 * 1000 * 1000) == 0) 
+                ss << ".d" << logDurationUs / (60 * 1000 * 1000) << "m"; 
+            if (logDurationUs % (1000 * 1000) == 0) 
+                ss << ".d" << logDurationUs / (1000 * 1000) << "s"; 
+            else if (logDurationUs % 1000 == 0) 
+                ss << ".d" << logDurationUs / 1000 << "ms"; 
+            else 
+                ss << ".d" << logDurationUs << "us"; 
+        } 
+        return ss.Str(); 
+    } 
+ 
+    bool IsValid() const 
+    { 
+        return Cfg.BlocksSize() > 0; 
+    } 
+ 
+    NLWTrace::TQuery Query() const 
+    { 
+        if (!IsValid()) { 
+            ythrow yexception() << "invalid adhoc trace config"; 
+        } 
+        return Cfg; 
+    } 
+ 
     bool ParseId(const TString& id)
-    {
-        if (IsAdHocId(id)) {
+    { 
+        if (IsAdHocId(id)) { 
             for (const TString& block : SplitString(id, "/")) {
-                if (block.empty()) {
-                    continue;
-                }
-                size_t cutPos = (block[0] == '.'? 1: 0);
+                if (block.empty()) { 
+                    continue; 
+                } 
+                size_t cutPos = (block[0] == '.'? 1: 0); 
                 TVector<TString> parts = SplitString(block.substr(cutPos), ".");
                 WWW_CHECK(parts.size() >= 2, "too few parts in adhoc trace id '%s' block '%s'", id.data(), block.data());
-                auto blockPb = Cfg.AddBlocks();
-                auto pdescPb = blockPb->MutableProbeDesc();
-                if (parts[0] == "Group") {
-                    pdescPb->SetGroup(parts[1]);
-                } else {
-                    pdescPb->SetProvider(parts[0]);
-                    pdescPb->SetName(parts[1]);
-                }
-                bool defaultAction = true;
-                for (auto i = parts.begin() + 2, e = parts.end(); i != e; ++i) {
+                auto blockPb = Cfg.AddBlocks(); 
+                auto pdescPb = blockPb->MutableProbeDesc(); 
+                if (parts[0] == "Group") { 
+                    pdescPb->SetGroup(parts[1]); 
+                } else { 
+                    pdescPb->SetProvider(parts[0]); 
+                    pdescPb->SetName(parts[1]); 
+                } 
+                bool defaultAction = true; 
+                for (auto i = parts.begin() + 2, e = parts.end(); i != e; ++i) { 
                     const TString& part = *i;
-                    if (part.empty()) {
-                        continue;
-                    }
-                    switch (part[0]) {
-                    case 'l': Cfg.SetPerThreadLogSize(FromString<ui16>(part.substr(1))); break;
-                    case 'd': Cfg.SetLogDurationUs(ParseDuration(part.substr(1))); break;
-                    case 's': blockPb->MutablePredicate()->SetSampleRate(1.0 / Max<ui64>(1, FromString<ui64>(part.substr(1)))); break;
-                    case 'p': ParsePredicate(blockPb->MutablePredicate()->AddOperators(), part.substr(1)); break;
-                    case 'a': ParseAction(blockPb->AddAction(), part.substr(1)); defaultAction = false; break;
+                    if (part.empty()) { 
+                        continue; 
+                    } 
+                    switch (part[0]) { 
+                    case 'l': Cfg.SetPerThreadLogSize(FromString<ui16>(part.substr(1))); break; 
+                    case 'd': Cfg.SetLogDurationUs(ParseDuration(part.substr(1))); break; 
+                    case 's': blockPb->MutablePredicate()->SetSampleRate(1.0 / Max<ui64>(1, FromString<ui64>(part.substr(1)))); break; 
+                    case 'p': ParsePredicate(blockPb->MutablePredicate()->AddOperators(), part.substr(1)); break; 
+                    case 'a': ParseAction(blockPb->AddAction(), part.substr(1)); defaultAction = false; break; 
                     default: WWW_CHECK(false, "unknown adhoc trace part type '%s' in '%s'", part.data(), id.data());
-                    }
-                }
-                if (defaultAction) {
-                    blockPb->AddAction()->MutableLogAction();
-                }
-            }
-            return true;
-        }
-        return false;
-    }
-private:
+                    } 
+                } 
+                if (defaultAction) { 
+                    blockPb->AddAction()->MutableLogAction(); 
+                } 
+            } 
+            return true; 
+        } 
+        return false; 
+    } 
+private: 
     static bool IsAdHocId(const TString& id)
-    {
-        return !id.empty() && id[0] == '.';
-    }
-
+    { 
+        return !id.empty() && id[0] == '.'; 
+    } 
+ 
     void ParsePredicate(NLWTrace::TOperator* op, const TString& p)
-    {
-        size_t sign = p.find_first_of("=!><");
+    { 
+        size_t sign = p.find_first_of("=!><"); 
         WWW_CHECK(sign != TString::npos, "wrong predicate format in adhoc trace: %s", p.data());
-        op->AddArgument()->SetParam(p.substr(0, sign));
-        size_t value = sign + 1;
-        switch (p[sign]) {
-        case '=':
-            op->SetType(NLWTrace::OT_EQ);
-            break;
-        case '!': {
+        op->AddArgument()->SetParam(p.substr(0, sign)); 
+        size_t value = sign + 1; 
+        switch (p[sign]) { 
+        case '=': 
+            op->SetType(NLWTrace::OT_EQ); 
+            break; 
+        case '!': { 
             WWW_CHECK(p.size() > sign + 1, "wrong predicate operator format in adhoc trace: %s", p.data());
             WWW_CHECK(p[sign + 1] == '=', "wrong predicate operator format in adhoc trace: %s", p.data());
-            value++;
-            op->SetType(NLWTrace::OT_NE);
-            break;
-        }
-        case '<': {
+            value++; 
+            op->SetType(NLWTrace::OT_NE); 
+            break; 
+        } 
+        case '<': { 
             WWW_CHECK(p.size() > sign + 1, "wrong predicate operator format in adhoc trace: %s", p.data());
-            if (p[sign + 1] == '=') {
-                value++;
-                op->SetType(NLWTrace::OT_LE);
-            } else {
-                op->SetType(NLWTrace::OT_LT);
-            }
-            break;
-        }
-        case '>': {
+            if (p[sign + 1] == '=') { 
+                value++; 
+                op->SetType(NLWTrace::OT_LE); 
+            } else { 
+                op->SetType(NLWTrace::OT_LT); 
+            } 
+            break; 
+        } 
+        case '>': { 
             WWW_CHECK(p.size() > sign + 1, "wrong predicate operator format in adhoc trace: %s", p.data());
-            if (p[sign + 1] == '=') {
-                value++;
-                op->SetType(NLWTrace::OT_GE);
-            } else {
-                op->SetType(NLWTrace::OT_GT);
-            }
-            break;
-        }
+            if (p[sign + 1] == '=') { 
+                value++; 
+                op->SetType(NLWTrace::OT_GE); 
+            } else { 
+                op->SetType(NLWTrace::OT_GT); 
+            } 
+            break; 
+        } 
         default: WWW_CHECK(false, "wrong predicate operator format in adhoc trace: %s", p.data());
-        }
-        op->AddArgument()->SetValue(p.substr(value));
-    }
-
+        } 
+        op->AddArgument()->SetValue(p.substr(value)); 
+    } 
+ 
     void ParseAction(NLWTrace::TAction* action, const TString& a)
-    {
-        // NOTE: checks for longer action names should go first, your captain.
-        if (a.substr(0, 3) == "lsr") {
-            auto pb = action->MutableRunLogShuttleAction();
+    { 
+        // NOTE: checks for longer action names should go first, your captain. 
+        if (a.substr(0, 3) == "lsr") { 
+            auto pb = action->MutableRunLogShuttleAction(); 
             for (const TString& opt : SplitString(a.substr(3), "-")) {
-                if (!opt.empty()) {
-                    switch (opt[0]) {
-                    case 'i': pb->SetIgnore(true); break;
-                    case 's': pb->SetShuttlesCount(FromString<ui64>(opt.substr(1))); break;
-                    case 't': pb->SetMaxTrackLength(FromString<ui64>(opt.substr(1))); break;
+                if (!opt.empty()) { 
+                    switch (opt[0]) { 
+                    case 'i': pb->SetIgnore(true); break; 
+                    case 's': pb->SetShuttlesCount(FromString<ui64>(opt.substr(1))); break; 
+                    case 't': pb->SetMaxTrackLength(FromString<ui64>(opt.substr(1))); break; 
                     default: WWW_CHECK(false, "unknown adhoc trace log shuttle opt '%s' in '%s'", opt.data(), a.data());
-                    }
-                }
-            }
-        } else if (a.substr(0, 3) == "lse") {
-            auto pb = action->MutableEditLogShuttleAction();
+                    } 
+                } 
+            } 
+        } else if (a.substr(0, 3) == "lse") { 
+            auto pb = action->MutableEditLogShuttleAction(); 
             for (const TString& opt : SplitString(a.substr(3), "-")) {
-                if (!opt.empty()) {
-                    switch (opt[0]) {
-                    case 'i': pb->SetIgnore(true); break;
+                if (!opt.empty()) { 
+                    switch (opt[0]) { 
+                    case 'i': pb->SetIgnore(true); break; 
                     default: WWW_CHECK(false, "unknown adhoc trace log shuttle opt '%s' in '%s'", opt.data(), a.data());
-                    }
-                }
-            }
-        } else if (a.substr(0, 3) == "lsd") {
-            action->MutableDropLogShuttleAction();
-        } else if (a.substr(0, 1) == "l") {
-            auto pb = action->MutableLogAction();
+                    } 
+                } 
+            } 
+        } else if (a.substr(0, 3) == "lsd") { 
+            action->MutableDropLogShuttleAction(); 
+        } else if (a.substr(0, 1) == "l") { 
+            auto pb = action->MutableLogAction(); 
             for (const TString& opt : SplitString(a.substr(1), "-")) {
-                if (!opt.empty()) {
-                    switch (opt[0]) {
-                    case 't': pb->SetLogTimestamp(true); break;
-                    case 'r': pb->SetMaxRecords(FromString<ui32>(opt.substr(1))); break;
+                if (!opt.empty()) { 
+                    switch (opt[0]) { 
+                    case 't': pb->SetLogTimestamp(true); break; 
+                    case 'r': pb->SetMaxRecords(FromString<ui32>(opt.substr(1))); break; 
                     default: WWW_CHECK(false, "unknown adhoc trace log opt '%s' in '%s'", opt.data(), a.data());
-                    }
-                }
-            }
-        } else {
+                    } 
+                } 
+            } 
+        } else { 
             WWW_CHECK(false, "wrong action format in adhoc trace: %s", a.data());
-        }
-    }
-
+        } 
+    } 
+ 
     static ui64 ParseDuration(const TString& s)
-    {
-        if (s.substr(s.length() - 2) == "us")
-            return FromString<ui64>(s.substr(0, s.length() - 2));
-        if (s.substr(s.length() - 2) == "ms")
-            return FromString<ui64>(s.substr(0, s.length() - 2)) * 1000;
-        if (s.substr(s.length() - 1) == "s")
-            return FromString<ui64>(s.substr(0, s.length() - 1)) * 1000 * 1000;
-        if (s.substr(s.length() - 1) == "m")
-            return FromString<ui64>(s.substr(0, s.length() - 1)) * 60 * 1000 * 1000;
-        else
-            return FromString<ui64>(s);
-    }
-};
-
-// Class that maintains one thread iff there are adhoc traces and cleans'em by deadlines
-class TTraceCleaner {
-private:
-    NLWTrace::TManager* TraceMngr;
-    TAtomic Quit = 0;
-
-    TMutex Mtx;
-    TCondVar WakeCondVar;
+    { 
+        if (s.substr(s.length() - 2) == "us") 
+            return FromString<ui64>(s.substr(0, s.length() - 2)); 
+        if (s.substr(s.length() - 2) == "ms") 
+            return FromString<ui64>(s.substr(0, s.length() - 2)) * 1000; 
+        if (s.substr(s.length() - 1) == "s") 
+            return FromString<ui64>(s.substr(0, s.length() - 1)) * 1000 * 1000; 
+        if (s.substr(s.length() - 1) == "m") 
+            return FromString<ui64>(s.substr(0, s.length() - 1)) * 60 * 1000 * 1000; 
+        else 
+            return FromString<ui64>(s); 
+    } 
+}; 
+ 
+// Class that maintains one thread iff there are adhoc traces and cleans'em by deadlines 
+class TTraceCleaner { 
+private: 
+    NLWTrace::TManager* TraceMngr; 
+    TAtomic Quit = 0; 
+ 
+    TMutex Mtx; 
+    TCondVar WakeCondVar; 
     THashMap<TString, TInstant> Deadlines;
-    volatile bool ThreadIsRunning = false;
-    THolder<TThread> Thread;
-public:
-    TTraceCleaner(NLWTrace::TManager* traceMngr)
-        : TraceMngr(traceMngr)
-    {}
-
-    ~TTraceCleaner()
-    {
-        AtomicSet(Quit, 1);
-        WakeCondVar.Signal();
-        // TThread dtor joins thread
-    }
-
-    // Returns deadline for specified trace id or zero
+    volatile bool ThreadIsRunning = false; 
+    THolder<TThread> Thread; 
+public: 
+    TTraceCleaner(NLWTrace::TManager* traceMngr) 
+        : TraceMngr(traceMngr) 
+    {} 
+ 
+    ~TTraceCleaner() 
+    { 
+        AtomicSet(Quit, 1); 
+        WakeCondVar.Signal(); 
+        // TThread dtor joins thread 
+    } 
+ 
+    // Returns deadline for specified trace id or zero 
     TInstant GetDeadline(const TString& id) const
-    {
-        TGuard<TMutex> g(Mtx);
-        auto iter = Deadlines.find(id);
-        return iter != Deadlines.end()? iter->second: TInstant::Zero();
-    }
-
-    // Postpone deletion of specified trace for specified timeout
+    { 
+        TGuard<TMutex> g(Mtx); 
+        auto iter = Deadlines.find(id); 
+        return iter != Deadlines.end()? iter->second: TInstant::Zero(); 
+    } 
+ 
+    // Postpone deletion of specified trace for specified timeout 
     void Postpone(const TString& id, TDuration timeout, bool allowLowering)
-    {
-        TGuard<TMutex> g(Mtx);
-        TInstant newDeadline = TInstant::Now() + timeout;
-        if (Deadlines[id] < newDeadline) {
-            Deadlines[id] = newDeadline;
-        } else if (allowLowering) { // Deadline lowering requires wake
-            Deadlines[id] = newDeadline;
-            WakeCondVar.Signal();
-        }
-        if (newDeadline != TInstant::Max() && !ThreadIsRunning) {
-            // Note that dtor joins previous thread if any
-            Thread.Reset(new TThread(ThreadProc, this));
-            Thread->Start();
-            ThreadIsRunning = true;
-        }
-    }
-
-    // Forget about specified trace deletion
+    { 
+        TGuard<TMutex> g(Mtx); 
+        TInstant newDeadline = TInstant::Now() + timeout; 
+        if (Deadlines[id] < newDeadline) { 
+            Deadlines[id] = newDeadline; 
+        } else if (allowLowering) { // Deadline lowering requires wake 
+            Deadlines[id] = newDeadline; 
+            WakeCondVar.Signal(); 
+        } 
+        if (newDeadline != TInstant::Max() && !ThreadIsRunning) { 
+            // Note that dtor joins previous thread if any 
+            Thread.Reset(new TThread(ThreadProc, this)); 
+            Thread->Start(); 
+            ThreadIsRunning = true; 
+        } 
+    } 
+ 
+    // Forget about specified trace deletion 
     void Forget(const TString& id)
-    {
-        TGuard<TMutex> g(Mtx);
-        Deadlines.erase(id);
-        WakeCondVar.Signal(); // in case thread is not required any more
-    }
-private:
-    void Exec()
-    {
-        while (!AtomicGet(Quit)) {
-            TGuard<TMutex> g(Mtx);
-
-            // Delete all timed out traces
-            TInstant now = TInstant::Now();
-            TInstant nextDeadline = TInstant::Max();
-            for (auto i = Deadlines.begin(), e = Deadlines.end(); i != e;) {
+    { 
+        TGuard<TMutex> g(Mtx); 
+        Deadlines.erase(id); 
+        WakeCondVar.Signal(); // in case thread is not required any more 
+    } 
+private: 
+    void Exec() 
+    { 
+        while (!AtomicGet(Quit)) { 
+            TGuard<TMutex> g(Mtx); 
+ 
+            // Delete all timed out traces 
+            TInstant now = TInstant::Now(); 
+            TInstant nextDeadline = TInstant::Max(); 
+            for (auto i = Deadlines.begin(), e = Deadlines.end(); i != e;) { 
                 const TString& id = i->first;
-                TInstant deadline = i->second;
-                if (deadline < now) {
-                    try {
-                        TraceMngr->Delete(id);
-                    } catch (...) {
-                        // already deleted
-                    }
-                    Deadlines.erase(i++);
-                } else {
-                    nextDeadline = Min(nextDeadline, deadline);
-                    ++i;
-                }
-            }
-
-            // Stop thread if there is no more work
-            if (Deadlines.empty() || nextDeadline == TInstant::Max()) {
-                ThreadIsRunning = false;
-                break;
-            }
-
-            // Wait until next deadline or quit
-            WakeCondVar.WaitD(Mtx, nextDeadline);
-        }
-    }
-
-    static void* ThreadProc(void* _this)
-    {
+                TInstant deadline = i->second; 
+                if (deadline < now) { 
+                    try { 
+                        TraceMngr->Delete(id); 
+                    } catch (...) { 
+                        // already deleted 
+                    } 
+                    Deadlines.erase(i++); 
+                } else { 
+                    nextDeadline = Min(nextDeadline, deadline); 
+                    ++i; 
+                } 
+            } 
+ 
+            // Stop thread if there is no more work 
+            if (Deadlines.empty() || nextDeadline == TInstant::Max()) { 
+                ThreadIsRunning = false; 
+                break; 
+            } 
+ 
+            // Wait until next deadline or quit 
+            WakeCondVar.WaitD(Mtx, nextDeadline); 
+        } 
+    } 
+ 
+    static void* ThreadProc(void* _this) 
+    { 
         TString name = "LWTraceCleaner";
-        // Copy-pasted from kikimr/core/util/thread.h
-#if defined(_linux_)
-        TStringStream linuxName;
-        linuxName << TStringBuf(GetExecPath()).RNextTok('/') << "." << name;
+        // Copy-pasted from kikimr/core/util/thread.h 
+#if defined(_linux_) 
+        TStringStream linuxName; 
+        linuxName << TStringBuf(GetExecPath()).RNextTok('/') << "." << name; 
         TThread::SetCurrentThreadName(linuxName.Str().data());
-#else
+#else 
         TThread::SetCurrentThreadName(name.data());
-#endif
-        static_cast<TTraceCleaner*>(_this)->Exec();
-        return nullptr;
-    }
-};
-
-class TChromeTrace {
-private:
+#endif 
+        static_cast<TTraceCleaner*>(_this)->Exec(); 
+        return nullptr; 
+    } 
+}; 
+ 
+class TChromeTrace { 
+private: 
     TMultiMap<double, TString> TraceEvents;
     THashMap<TThread::TId, TString> Tids;
-public:
+public: 
     void Add(TThread::TId tid, ui64 tsCycles, const TString& ph, const TString& cat,
-             const NLWTrace::TLogItem* argsItem = nullptr,
+             const NLWTrace::TLogItem* argsItem = nullptr, 
              const TString& name = TString(), const TString& id = TString())
-    {
-        auto tidIter = Tids.find(tid);
-        if (tidIter == Tids.end()) {
-            tidIter = Tids.emplace(tid, ToString(Tids.size() + 1)).first;
-        }
+    { 
+        auto tidIter = Tids.find(tid); 
+        if (tidIter == Tids.end()) { 
+            tidIter = Tids.emplace(tid, ToString(Tids.size() + 1)).first; 
+        } 
         const TString& shortId = tidIter->second;
-        double ts = Timestamp(tsCycles);
-        TraceEvents.emplace(ts, Event(shortId, ts, ph, cat, argsItem, name, id));
-    }
-
+        double ts = Timestamp(tsCycles); 
+        TraceEvents.emplace(ts, Event(shortId, ts, ph, cat, argsItem, name, id)); 
+    } 
+ 
     void Output(IOutputStream& os)
-    {
-        os << "{\"traceEvents\":[";
-        bool first = true;
-        for (auto kv : TraceEvents) {
-            if (!first) {
-                os << ",\n";
-            }
-            os << kv.second;
-            first = false;
-        }
-        os << "]}";
-    }
-
-private:
+    { 
+        os << "{\"traceEvents\":["; 
+        bool first = true; 
+        for (auto kv : TraceEvents) { 
+            if (!first) { 
+                os << ",\n"; 
+            } 
+            os << kv.second; 
+            first = false; 
+        } 
+        os << "]}"; 
+    } 
+ 
+private: 
     static TString Event(const TString& tid, double ts, const TString& ph, const TString& cat,
-                        const NLWTrace::TLogItem* argsItem,
+                        const NLWTrace::TLogItem* argsItem, 
                         const TString& name, const TString& id)
-    {
-        TStringStream ss;
-        pid_t pid = 1;
-        ss << "{\"pid\":" << pid
-           << ",\"tid\":" << tid
-           << ",\"ts\":" << Sprintf("%lf", ts)
-           << ",\"ph\":\"" << ph << "\""
-           << ",\"cat\":\"" << cat << "\"";
-        if (name) {
-            ss << ",\"name\":\"" << name << "\"";
-        }
-        if (id) {
-            ss << ",\"id\":\"" << id << "\"";
-        }
-        if (argsItem && argsItem->SavedParamsCount > 0) {
-            ss << ",\"args\":{";
+    { 
+        TStringStream ss; 
+        pid_t pid = 1; 
+        ss << "{\"pid\":" << pid 
+           << ",\"tid\":" << tid 
+           << ",\"ts\":" << Sprintf("%lf", ts) 
+           << ",\"ph\":\"" << ph << "\"" 
+           << ",\"cat\":\"" << cat << "\""; 
+        if (name) { 
+            ss << ",\"name\":\"" << name << "\""; 
+        } 
+        if (id) { 
+            ss << ",\"id\":\"" << id << "\""; 
+        } 
+        if (argsItem && argsItem->SavedParamsCount > 0) { 
+            ss << ",\"args\":{"; 
             TString paramValues[LWTRACE_MAX_PARAMS];
-            argsItem->Probe->Event.Signature.SerializeParams(argsItem->Params, paramValues);
-            bool first = true;
-            for (size_t pi = 0; pi < argsItem->SavedParamsCount; pi++, first = false) {
-                if (!first) {
-                    ss << ",";
-                }
+            argsItem->Probe->Event.Signature.SerializeParams(argsItem->Params, paramValues); 
+            bool first = true; 
+            for (size_t pi = 0; pi < argsItem->SavedParamsCount; pi++, first = false) { 
+                if (!first) { 
+                    ss << ","; 
+                } 
                 ss << "\"" << TString(argsItem->Probe->Event.Signature.ParamNames[pi]) << "\":"
-                      "\"" << paramValues[pi] << "\"";
-            }
-            ss << "}";
-        }
-        ss << "}";
-        return ss.Str();
-    }
-
-    static double Timestamp(ui64 cycles)
-    {
-        return double(cycles) * 1000000.0 / NHPTimer::GetClockRate();
-    }
-};
-
-TString MakeUrl(const TCgiParameters& e, const THashMap<TString, TString>& values)
-{
-    TStringStream ss;
-    bool first = true;
-    for (const auto& [k, v] : e) {
-        if (values.find(k) == values.end()) {
-            ss << (first? "?": "&") << k << "=" << v;
-            first = false;
-        }
-    }
-    for (const auto& [k, v] : values) {
-        ss << (first? "?": "&") << k << "=" << v;
-        first = false;
-    }
-    return ss.Str();
-}
-
+                      "\"" << paramValues[pi] << "\""; 
+            } 
+            ss << "}"; 
+        } 
+        ss << "}"; 
+        return ss.Str(); 
+    } 
+ 
+    static double Timestamp(ui64 cycles) 
+    { 
+        return double(cycles) * 1000000.0 / NHPTimer::GetClockRate(); 
+    } 
+}; 
+ 
+TString MakeUrl(const TCgiParameters& e, const THashMap<TString, TString>& values) 
+{ 
+    TStringStream ss; 
+    bool first = true; 
+    for (const auto& [k, v] : e) { 
+        if (values.find(k) == values.end()) { 
+            ss << (first? "?": "&") << k << "=" << v; 
+            first = false; 
+        } 
+    } 
+    for (const auto& [k, v] : values) { 
+        ss << (first? "?": "&") << k << "=" << v; 
+        first = false; 
+    } 
+    return ss.Str(); 
+} 
+ 
 TString MakeUrl(const TCgiParameters& e, const TString& key, const TString& value, bool keep = false)
-{
-    TStringStream ss;
-    bool first = true;
-    for (const auto& kv : e) {
-        if (keep || kv.first != key) {
-            ss << (first? "?": "&") << kv.first << "=" << kv.second;
-            first = false;
-        }
-    }
-    ss << (first? "?": "&") << key << "=" << value;
-    return ss.Str();
-}
-
+{ 
+    TStringStream ss; 
+    bool first = true; 
+    for (const auto& kv : e) { 
+        if (keep || kv.first != key) { 
+            ss << (first? "?": "&") << kv.first << "=" << kv.second; 
+            first = false; 
+        } 
+    } 
+    ss << (first? "?": "&") << key << "=" << value; 
+    return ss.Str(); 
+} 
+ 
 TString MakeUrlAdd(const TCgiParameters& e, const TString& key, const TString& value)
-{
-    TStringStream ss;
-    bool first = true;
-    for (const auto& kv : e) {
-        ss << (first? "?": "&") << kv.first << "=" << kv.second;
-        first = false;
-    }
-    ss << (first? "?": "&") << key << "=" << value;
-    return ss.Str();
-}
-
+{ 
+    TStringStream ss; 
+    bool first = true; 
+    for (const auto& kv : e) { 
+        ss << (first? "?": "&") << kv.first << "=" << kv.second; 
+        first = false; 
+    } 
+    ss << (first? "?": "&") << key << "=" << value; 
+    return ss.Str(); 
+} 
+ 
 TString MakeUrlReplace(const TCgiParameters& e, const TString& key, const TString& oldValue, const TString& newValue)
-{
-    TStringStream ss;
-    bool first = true;
-    bool inserted = false;
-    for (const auto& kv : e) {
-        if (kv.first == key && (kv.second == oldValue || kv.second == newValue)) {
-            if (!inserted) {
-                inserted = true;
-                ss << (first? "?": "&") << key << "=" << newValue;
-                first = false;
-            }
-        } else {
-            ss << (first? "?": "&") << kv.first << "=" << kv.second;
-            first = false;
-        }
-    }
-    if (!inserted) {
-        ss << (first? "?": "&") << key << "=" << newValue;
-    }
-    return ss.Str();
-}
-
+{ 
+    TStringStream ss; 
+    bool first = true; 
+    bool inserted = false; 
+    for (const auto& kv : e) { 
+        if (kv.first == key && (kv.second == oldValue || kv.second == newValue)) { 
+            if (!inserted) { 
+                inserted = true; 
+                ss << (first? "?": "&") << key << "=" << newValue; 
+                first = false; 
+            } 
+        } else { 
+            ss << (first? "?": "&") << kv.first << "=" << kv.second; 
+            first = false; 
+        } 
+    } 
+    if (!inserted) { 
+        ss << (first? "?": "&") << key << "=" << newValue; 
+    } 
+    return ss.Str(); 
+} 
+ 
 TString MakeUrlErase(const TCgiParameters& e, const TString& key, const TString& value)
-{
-    TStringStream ss;
-    bool first = true;
-    for (const auto& kv : e) {
-        if (kv.first != key || kv.second != value) {
-            ss << (first? "?": "&") << kv.first << "=" << kv.second;
-            first = false;
-        }
-    }
-    return ss.Str();
-}
-
+{ 
+    TStringStream ss; 
+    bool first = true; 
+    for (const auto& kv : e) { 
+        if (kv.first != key || kv.second != value) { 
+            ss << (first? "?": "&") << kv.first << "=" << kv.second; 
+            first = false; 
+        } 
+    } 
+    return ss.Str(); 
+} 
+ 
 TString EscapeSubvalue(const TString& s)
-{
+{ 
     TString ret;
     ret.reserve(s.size());
     for (size_t i = 0; i < s.size(); i++) {
-        char c = s[i];
-        if (c == ':') {
-            ret.append("^c");
-        } else if (c == '^') {
-            ret.append("^^");
-        } else {
-            ret.append(c);
-        }
-    }
-    return ret;
-}
-
+        char c = s[i]; 
+        if (c == ':') { 
+            ret.append("^c"); 
+        } else if (c == '^') { 
+            ret.append("^^"); 
+        } else { 
+            ret.append(c); 
+        } 
+    } 
+    return ret; 
+} 
+ 
 TString UnescapeSubvalue(const TString& s)
-{
+{ 
     TString ret;
     ret.reserve(s.size());
     for (size_t i = 0; i < s.size(); i++) {
-        char c = s[i];
+        char c = s[i]; 
         if (c == '^' && i + 1 < s.size()) {
-            char c2 = s[++i];
-            if (c2 == 'c') {
-                ret.append(':');
-            } else if (c2 == '^') {
-                ret.append('^');
-            } else {
-                ret.append(c);
-                ret.append(c2);
-            }
-        } else {
-            ret.append(c);
-        }
-    }
-    return ret;
-}
-
+            char c2 = s[++i]; 
+            if (c2 == 'c') { 
+                ret.append(':'); 
+            } else if (c2 == '^') { 
+                ret.append('^'); 
+            } else { 
+                ret.append(c); 
+                ret.append(c2); 
+            } 
+        } else { 
+            ret.append(c); 
+        } 
+    } 
+    return ret; 
+} 
+ 
 TVector<TString> Subvalues(const TCgiParameters& e, const TString& key)
-{
-    if (!e.Has(key)) {
+{ 
+    if (!e.Has(key)) { 
         return TVector<TString>();
-    } else {
+    } else { 
         TVector<TString> ret;
         for (const TString& s : SplitString(e.Get(key), ":", 0, KEEP_EMPTY_TOKENS)) {
-            ret.push_back(UnescapeSubvalue(s));
-        }
-        if (ret.empty()) {
-            ret.push_back("");
-        }
-        return ret;
-    }
-}
-
+            ret.push_back(UnescapeSubvalue(s)); 
+        } 
+        if (ret.empty()) { 
+            ret.push_back(""); 
+        } 
+        return ret; 
+    } 
+} 
+ 
 TString ParseTagsOut(const TString& taggedStr, TTags& tags)
-{
+{ 
     auto vec = SplitString(taggedStr, "-");
-    if (vec.empty()) {
-        return "";
-    }
-    auto iter = vec.begin();
+    if (vec.empty()) { 
+        return ""; 
+    } 
+    auto iter = vec.begin(); 
     TString value = *iter++;
-    for (;iter != vec.end(); ++iter) {
-        tags.insert(*iter);
-    }
-    return value;
-}
-
+    for (;iter != vec.end(); ++iter) { 
+        tags.insert(*iter); 
+    } 
+    return value; 
+} 
+ 
 TString JoinTags(TTags tags) {
     return JoinStrings(TVector<TString>(tags.begin(), tags.end()), "-");
-}
-
+} 
+ 
 TString MakeValue(const TVector<TString>& subvalues)
-{
+{ 
     TVector<TString> subvaluesEsc;
     for (const TString& s : subvalues) {
-        subvaluesEsc.push_back(EscapeSubvalue(s));
-    }
+        subvaluesEsc.push_back(EscapeSubvalue(s)); 
+    } 
     return JoinStrings(subvaluesEsc, ":");
-}
-
+} 
+ 
 TString MakeUrlAddSub(const TCgiParameters& e, const TString& key, const TString& subvalue)
-{
+{ 
     const TString& value = e.Get(key);
-    auto subvalues = Subvalues(e, key);
-    subvalues.push_back(subvalue);
-    return MakeUrlReplace(e, key, value, MakeValue(subvalues));
-}
-
+    auto subvalues = Subvalues(e, key); 
+    subvalues.push_back(subvalue); 
+    return MakeUrlReplace(e, key, value, MakeValue(subvalues)); 
+} 
+ 
 TString MakeUrlReplaceSub(const TCgiParameters& e, const TString& key, const TString& oldSubvalue, const TString& newSubvalue)
-{
+{ 
     const TString& value = e.Get(key);
-    auto subvalues = Subvalues(e, key);
-    auto iter = std::find(subvalues.begin(), subvalues.end(), oldSubvalue);
-    if (iter != subvalues.end()) {
-        *iter = newSubvalue;
-    } else {
-        subvalues.push_back(newSubvalue);
-    }
-    return MakeUrlReplace(e, key, value, MakeValue(subvalues));
-}
-
+    auto subvalues = Subvalues(e, key); 
+    auto iter = std::find(subvalues.begin(), subvalues.end(), oldSubvalue); 
+    if (iter != subvalues.end()) { 
+        *iter = newSubvalue; 
+    } else { 
+        subvalues.push_back(newSubvalue); 
+    } 
+    return MakeUrlReplace(e, key, value, MakeValue(subvalues)); 
+} 
+ 
 TString MakeUrlEraseSub(const TCgiParameters& e, const TString& key, const TString& subvalue)
-{
+{ 
     const TString& value = e.Get(key);
-    auto subvalues = Subvalues(e, key);
-    auto iter = std::find(subvalues.begin(), subvalues.end(), subvalue);
-    if (iter != subvalues.end()) {
-        subvalues.erase(iter);
-    }
-    if (subvalues.empty()) {
-        return MakeUrlErase(e, key, value);
-    } else {
-        return MakeUrlReplace(e, key, value, MakeValue(subvalues));
-    }
-}
-
+    auto subvalues = Subvalues(e, key); 
+    auto iter = std::find(subvalues.begin(), subvalues.end(), subvalue); 
+    if (iter != subvalues.end()) { 
+        subvalues.erase(iter); 
+    } 
+    if (subvalues.empty()) { 
+        return MakeUrlErase(e, key, value); 
+    } else { 
+        return MakeUrlReplace(e, key, value, MakeValue(subvalues)); 
+    } 
+} 
+ 
 template <bool sub> TString UrlAdd(const TCgiParameters& e, const TString& key, const TString& value);
 template <> TString UrlAdd<false>(const TCgiParameters& e, const TString& key, const TString& value) {
-    return MakeUrlAdd(e, key, value);
-}
+    return MakeUrlAdd(e, key, value); 
+} 
 template <> TString UrlAdd<true>(const TCgiParameters& e, const TString& key, const TString& value) {
-    return MakeUrlAddSub(e, key, value);
-}
-
+    return MakeUrlAddSub(e, key, value); 
+} 
+ 
 template <bool sub> TString UrlReplace(const TCgiParameters& e, const TString& key, const TString& oldValue, const TString& newValue);
 template <> TString UrlReplace<false>(const TCgiParameters& e, const TString& key, const TString& oldValue, const TString& newValue) {
-    return MakeUrlReplace(e, key, oldValue, newValue);
-}
+    return MakeUrlReplace(e, key, oldValue, newValue); 
+} 
 template <> TString UrlReplace<true>(const TCgiParameters& e, const TString& key, const TString& oldValue, const TString& newValue) {
-    return MakeUrlReplaceSub(e, key, oldValue, newValue);
-}
-
+    return MakeUrlReplaceSub(e, key, oldValue, newValue); 
+} 
+ 
 template <bool sub> TString UrlErase(const TCgiParameters& e, const TString& key, const TString& value);
 template <> TString UrlErase<false>(const TCgiParameters& e, const TString& key, const TString& value) {
-    return MakeUrlErase(e, key, value);
-}
+    return MakeUrlErase(e, key, value); 
+} 
 template <> TString UrlErase<true>(const TCgiParameters& e, const TString& key, const TString& value) {
-    return MakeUrlEraseSub(e, key, value);
-}
-
+    return MakeUrlEraseSub(e, key, value); 
+} 
+ 
 void OutputCommonHeader(IOutputStream& out)
-{
-    out << NResource::Find("lwtrace/mon/static/header.html") << Endl;
-}
-
+{ 
+    out << NResource::Find("lwtrace/mon/static/header.html") << Endl; 
+} 
+ 
 void OutputCommonFooter(IOutputStream& out)
-{
-    out << NResource::Find("lwtrace/mon/static/footer.html") << Endl;
-}
-
-struct TScopedHtmlInner {
+{ 
+    out << NResource::Find("lwtrace/mon/static/footer.html") << Endl; 
+} 
+ 
+struct TScopedHtmlInner { 
     explicit TScopedHtmlInner(IOutputStream& str)
-        : Str(str)
-    {
-        Str << "<!DOCTYPE html>\n"
-               "<html>";
-        HTML(str) {
-            HEAD() { OutputCommonHeader(Str); }
-        }
-        Str << "<body>";
-    }
-
-    ~TScopedHtmlInner()
-    {
-        OutputCommonFooter(Str);
-        Str << "</body></html>";
-    }
-
-    inline operator bool () const noexcept { return true; }
-
+        : Str(str) 
+    { 
+        Str << "<!DOCTYPE html>\n" 
+               "<html>"; 
+        HTML(str) { 
+            HEAD() { OutputCommonHeader(Str); } 
+        } 
+        Str << "<body>"; 
+    } 
+ 
+    ~TScopedHtmlInner() 
+    { 
+        OutputCommonFooter(Str); 
+        Str << "</body></html>"; 
+    } 
+ 
+    inline operator bool () const noexcept { return true; } 
+ 
     IOutputStream &Str;
-};
-
+}; 
+ 
 TString NavbarHeader()
-{
-    return "<div class=\"navbar-header\">"
-             "<a class=\"navbar-brand\" href=\"?mode=\">LWTrace</a>"
-           "</div>";
-}
-
-struct TSelectorsContainer {
+{ 
+    return "<div class=\"navbar-header\">" 
+             "<a class=\"navbar-brand\" href=\"?mode=\">LWTrace</a>" 
+           "</div>"; 
+} 
+ 
+struct TSelectorsContainer { 
     TSelectorsContainer(IOutputStream& str)
-        : Str(str)
-    {
-        Str << "<nav id=\"selectors-container\" class=\"navbar navbar-default\">"
-               "<div class=\"container-fluid\">"
-            << NavbarHeader() <<
-               "<div class=\"navbar-text\" style=\"margin-top:12px;margin-bottom:10px\">";
-    }
-
-    ~TSelectorsContainer() {
-        try {
-            Str <<
-                "</div>"
-                "<div class=\"container-fluid\">"
-                    "<div class=\"pull-right\">"
-                        "<button id=\"download-btn\""
-                        " type=\"button\" style=\"display: inline-block;margin:7px\""
-                        " title=\"Chromium trace (load it in chrome://tracing/)\""
-                        " class=\"btn btn-default hidden\">"
-                            "<span class=\"glyphicon glyphicon-download-alt\"></span>"
-                        "</button>"
-                    "</div>"
-                "</div>"
-            "</div></nav>";
-        } catch(...) {}
-    }
-
+        : Str(str) 
+    { 
+        Str << "<nav id=\"selectors-container\" class=\"navbar navbar-default\">" 
+               "<div class=\"container-fluid\">" 
+            << NavbarHeader() << 
+               "<div class=\"navbar-text\" style=\"margin-top:12px;margin-bottom:10px\">"; 
+    } 
+ 
+    ~TSelectorsContainer() { 
+        try { 
+            Str << 
+                "</div>" 
+                "<div class=\"container-fluid\">" 
+                    "<div class=\"pull-right\">" 
+                        "<button id=\"download-btn\"" 
+                        " type=\"button\" style=\"display: inline-block;margin:7px\"" 
+                        " title=\"Chromium trace (load it in chrome://tracing/)\"" 
+                        " class=\"btn btn-default hidden\">" 
+                            "<span class=\"glyphicon glyphicon-download-alt\"></span>" 
+                        "</button>" 
+                    "</div>" 
+                "</div>" 
+            "</div></nav>"; 
+        } catch(...) {} 
+    } 
+ 
     IOutputStream& Str;
-};
-
-struct TNullContainer {
+}; 
+ 
+struct TNullContainer { 
     TNullContainer(IOutputStream&) {}
-};
-
-class TPageGenBase: public std::exception {};
-template <class TContainer = TNullContainer>
-class TPageGen: public TPageGenBase {
-private:
+}; 
+ 
+class TPageGenBase: public std::exception {}; 
+template <class TContainer = TNullContainer> 
+class TPageGen: public TPageGenBase { 
+private: 
     TString Content;
     TString HttpResponse;
-public:
-    void BuildResponse()
-    {
-        TStringStream ss;
-        WWW_HTML(ss) {
-            TContainer container(ss);
-            ss << Content;
-        }
-        HttpResponse = ss.Str();
-    }
-
+public: 
+    void BuildResponse() 
+    { 
+        TStringStream ss; 
+        WWW_HTML(ss) { 
+            TContainer container(ss); 
+            ss << Content; 
+        } 
+        HttpResponse = ss.Str(); 
+    } 
+ 
     explicit TPageGen(const TString& content = TString())
-        : Content(content)
-    {
-        BuildResponse();
-    }
-
+        : Content(content) 
+    { 
+        BuildResponse(); 
+    } 
+ 
     void Append(const TString& moreContent)
-    {
-        Content.append(moreContent);
-        BuildResponse();
-    }
-
+    { 
+        Content.append(moreContent); 
+        BuildResponse(); 
+    } 
+ 
     void Prepend(const TString& moreContent)
-    {
-        Content.prepend(moreContent);
-        BuildResponse();
-    }
-
+    { 
+        Content.prepend(moreContent); 
+        BuildResponse(); 
+    } 
+ 
     virtual const char* what() const noexcept { return HttpResponse.data(); }
     operator bool() const { return !Content.empty(); }
-};
-
-enum EStyleFlags {
-    // bit 1
-    Link = 0x0,
-    Button = 0x1,
-
-    // bit 2
-    NonErasable = 0x0,
-    Erasable = 0x2,
-
-    // bit 3-4
-    Medium = 0x0,
-    Large = 0x4,
-    Small = 0x8,
-    ExtraSmall = 0xC,
-    SizeMask = 0xC,
-
-    // bit 5
-    NoCaret = 0x0,
-    Caret = 0x10,
-
-    // bit 6
-    SimpleValue = 0x0,
-    CompositeValue = 0x20
-};
-
-template <ui64 flags>
+}; 
+ 
+enum EStyleFlags { 
+    // bit 1 
+    Link = 0x0, 
+    Button = 0x1, 
+ 
+    // bit 2 
+    NonErasable = 0x0, 
+    Erasable = 0x2, 
+ 
+    // bit 3-4 
+    Medium = 0x0, 
+    Large = 0x4, 
+    Small = 0x8, 
+    ExtraSmall = 0xC, 
+    SizeMask = 0xC, 
+ 
+    // bit 5 
+    NoCaret = 0x0, 
+    Caret = 0x10, 
+ 
+    // bit 6 
+    SimpleValue = 0x0, 
+    CompositeValue = 0x20 
+}; 
+ 
+template <ui64 flags> 
 TString BtnClass() {
-    if ((flags & SizeMask) == Large) {
-        return "btn btn-lg";
-    } else if ((flags & SizeMask) == Small) {
-        return "btn btn-sm";
-    } else if ((flags & SizeMask) == ExtraSmall) {
-        return "btn btn-xs";
-    }
-    return "btn";
-}
-
+    if ((flags & SizeMask) == Large) { 
+        return "btn btn-lg"; 
+    } else if ((flags & SizeMask) == Small) { 
+        return "btn btn-sm"; 
+    } else if ((flags & SizeMask) == ExtraSmall) { 
+        return "btn btn-xs"; 
+    } 
+    return "btn"; 
+} 
+ 
 void SelectorTitle(IOutputStream& os, const TString& text)
-{
-    if (!text.empty()) {
-        os << text;
-    }
-}
-
-template <ui64 flags>
+{ 
+    if (!text.empty()) { 
+        os << text; 
+    } 
+} 
+ 
+template <ui64 flags> 
 void BtnHref(IOutputStream& os, const TString& text, const TString& href, bool push = false)
-{
-    if (flags & Button) {
-        os << "<button type=\"button\" style=\"display: inline-block;margin:3px\" class=\""
-           << BtnClass<flags>() << " "
-           << (push? "btn-primary": "btn-default")
-           << "\" onClick=\"window.location.href='" << href << "';\">"
-           << text
-           << "</button>";
-    } else {
-        os << "<a href=\"" << href << "\">"
-           << text
-           << "</a>";
-    }
-}
-
+{ 
+    if (flags & Button) { 
+        os << "<button type=\"button\" style=\"display: inline-block;margin:3px\" class=\"" 
+           << BtnClass<flags>() << " " 
+           << (push? "btn-primary": "btn-default") 
+           << "\" onClick=\"window.location.href='" << href << "';\">" 
+           << text 
+           << "</button>"; 
+    } else { 
+        os << "<a href=\"" << href << "\">" 
+           << text 
+           << "</a>"; 
+    } 
+} 
+ 
 void DropdownBeginSublist(IOutputStream& os, const TString& text)
-{
-    os << "<li>" << text << "<ul class=\"dropdown-menu\">";
-}
-
+{ 
+    os << "<li>" << text << "<ul class=\"dropdown-menu\">"; 
+} 
+ 
 void DropdownEndSublist(IOutputStream& os)
-{
-    os << "</ul></li>";
-}
-
+{ 
+    os << "</ul></li>"; 
+} 
+ 
 void DropdownItem(IOutputStream& os, const TString& text, const TString& href, bool separated = false)
-{
-    if (separated) {
-        os << "<li role=\"separator\" class=\"divider\"></li>";
-    }
-    os << "<li><a href=\"" << href << "\">" << text << "</a></li>";
-}
-
+{ 
+    if (separated) { 
+        os << "<li role=\"separator\" class=\"divider\"></li>"; 
+    } 
+    os << "<li><a href=\"" << href << "\">" << text << "</a></li>"; 
+} 
+ 
 TString SuggestSelection()
-{
-    return "--- ";
-}
-
+{ 
+    return "--- "; 
+} 
+ 
 TString RemoveSelection()
-{
-    return "Remove";
-}
-
+{ 
+    return "Remove"; 
+} 
+ 
 TString GetDescription(const TString& value, const TVariants& variants)
-{
-    for (const auto& var : variants) {
-        if (value == var.first) {
-            return var.second;
-        }
-    }
-    if (!value) {
-        return SuggestSelection();
-    }
-    return value;
-}
-
-template <ui64 flags, bool sub = false>
+{ 
+    for (const auto& var : variants) { 
+        if (value == var.first) { 
+            return var.second; 
+        } 
+    } 
+    if (!value) { 
+        return SuggestSelection(); 
+    } 
+    return value; 
+} 
+ 
+template <ui64 flags, bool sub = false> 
 void DropdownSelector(IOutputStream& os, const TCgiParameters& e, const TString& param, const TString& value,
                       const TString& text, const TVariants& variants, const TString& realValue = TString())
-{
-    HTML(os) {
-        SelectorTitle(os, text);
-        os << "<div class=\"dropdown\" style=\"display:inline-block;margin:3px\">";
-            if (flags & Button) {
-                os << "<button class=\"" << BtnClass<flags>() << " btn-primary dropdown-toggle\" type=\"button\" data-toggle=\"dropdown\">";
-            } else {
-                os << "<a href=\"#\" data-toggle=\"dropdown\">";
-            }
-            os << GetDescription(flags & CompositeValue? realValue: value, variants);
-            if (flags & Caret) {
-                os << "<span class=\"caret\"></span>";
-            }
-            if (flags & Button) {
-                os <<"</button>";
-            } else {
-                os <<"</a>";
-            }
-            UL_CLASS ("dropdown-menu") {
-                for (const auto& var : variants) {
-                    DropdownItem(os, var.second, UrlReplace<sub>(e, param, value, var.first));
-                }
-                if (flags & Erasable) {
-                    DropdownItem(os, RemoveSelection(), UrlErase<sub>(e, param, value), true);
-                }
-            }
-        os << "</div>";
-    }
-}
-
+{ 
+    HTML(os) { 
+        SelectorTitle(os, text); 
+        os << "<div class=\"dropdown\" style=\"display:inline-block;margin:3px\">"; 
+            if (flags & Button) { 
+                os << "<button class=\"" << BtnClass<flags>() << " btn-primary dropdown-toggle\" type=\"button\" data-toggle=\"dropdown\">"; 
+            } else { 
+                os << "<a href=\"#\" data-toggle=\"dropdown\">"; 
+            } 
+            os << GetDescription(flags & CompositeValue? realValue: value, variants); 
+            if (flags & Caret) { 
+                os << "<span class=\"caret\"></span>"; 
+            } 
+            if (flags & Button) { 
+                os <<"</button>"; 
+            } else { 
+                os <<"</a>"; 
+            } 
+            UL_CLASS ("dropdown-menu") { 
+                for (const auto& var : variants) { 
+                    DropdownItem(os, var.second, UrlReplace<sub>(e, param, value, var.first)); 
+                } 
+                if (flags & Erasable) { 
+                    DropdownItem(os, RemoveSelection(), UrlErase<sub>(e, param, value), true); 
+                } 
+            } 
+        os << "</div>"; 
+    } 
+} 
+ 
 void RequireSelection(TStringStream& ss, const TCgiParameters& e, const TString& param,
                    const TString& text, const TVariants& variants)
-{
+{ 
     const TString& value = e.Get(param);
-    DropdownSelector<Link>(ss, e, param, value, text, variants);
-    if (!value) {
-        throw TPageGen<TSelectorsContainer>(ss.Str());
-    }
-}
-
+    DropdownSelector<Link>(ss, e, param, value, text, variants); 
+    if (!value) { 
+        throw TPageGen<TSelectorsContainer>(ss.Str()); 
+    } 
+} 
+ 
 void RequireMultipleSelection(TStringStream& ss, const TCgiParameters& e, const TString& param,
                               const TString& text, const TVariants& variants)
-{
-    SelectorTitle(ss, text);
+{ 
+    SelectorTitle(ss, text); 
     TSet<TString> selectedValues;
     for (const TString& subvalue : Subvalues(e, param)) {
-        selectedValues.insert(subvalue);
-    }
+        selectedValues.insert(subvalue); 
+    } 
     for (const TString& subvalue : Subvalues(e, param)) {
-        DropdownSelector<Erasable, true>(ss, e, param, subvalue, "", variants);
-    }
+        DropdownSelector<Erasable, true>(ss, e, param, subvalue, "", variants); 
+    } 
     if (selectedValues.contains("")) {
-        throw TPageGen<TSelectorsContainer>(ss.Str());
-    } else {
-        BtnHref<Button|ExtraSmall>(ss, "+", MakeUrlAddSub(e, param, ""));
-        if (selectedValues.empty()) {
-            throw TPageGen<TSelectorsContainer>(ss.Str());
-        }
-    }
-}
-
+        throw TPageGen<TSelectorsContainer>(ss.Str()); 
+    } else { 
+        BtnHref<Button|ExtraSmall>(ss, "+", MakeUrlAddSub(e, param, "")); 
+        if (selectedValues.empty()) { 
+            throw TPageGen<TSelectorsContainer>(ss.Str()); 
+        } 
+    } 
+} 
+ 
 void OptionalSelection(TStringStream& ss, const TCgiParameters& e, const TString& param,
                        const TString& text, const TVariants& variants)
 {
@@ -1424,251 +1424,251 @@ void OptionalSelection(TStringStream& ss, const TCgiParameters& e, const TString
 
 void OptionalMultipleSelection(TStringStream& ss, const TCgiParameters& e, const TString& param,
                               const TString& text, const TVariants& variants)
-{
+{ 
     TSet<TString> selectedValues;
     for (const TString& subvalue : Subvalues(e, param)) {
-        selectedValues.insert(subvalue);
-    }
-    if (!selectedValues.empty()) {
-        SelectorTitle(ss, text);
-    }
+        selectedValues.insert(subvalue); 
+    } 
+    if (!selectedValues.empty()) { 
+        SelectorTitle(ss, text); 
+    } 
     for (const TString& subvalue : Subvalues(e, param)) {
-        DropdownSelector<Erasable, true>(ss, e, param, subvalue, "", variants);
-    }
+        DropdownSelector<Erasable, true>(ss, e, param, subvalue, "", variants); 
+    } 
     if (selectedValues.contains("")) {
-        throw TPageGen<TSelectorsContainer>(ss.Str());
-    } else {
-        BtnHref<Button|ExtraSmall>(ss, selectedValues.empty()? text: "+", MakeUrlAddSub(e, param, ""));
-    }
-}
-
-TVariants ListColumns(const NAnalytics::TTable& table)
-{
+        throw TPageGen<TSelectorsContainer>(ss.Str()); 
+    } else { 
+        BtnHref<Button|ExtraSmall>(ss, selectedValues.empty()? text: "+", MakeUrlAddSub(e, param, "")); 
+    } 
+} 
+ 
+TVariants ListColumns(const NAnalytics::TTable& table) 
+{ 
     TSet<TString> cols;
-//    bool addSpecialCols = false;
-//    if (addSpecialCols) {
-//        cols.insert("_count");
-//    }
-    for (auto& row : table) {
-        for (auto& kv : row) {
-            cols.insert(kv.first);
-        }
-    }
-    TVariants result;
-    for (const auto& s : cols) {
-        result.emplace_back(s, s);
-    }
-    return result;
-}
-
+//    bool addSpecialCols = false; 
+//    if (addSpecialCols) { 
+//        cols.insert("_count"); 
+//    } 
+    for (auto& row : table) { 
+        for (auto& kv : row) { 
+            cols.insert(kv.first); 
+        } 
+    } 
+    TVariants result; 
+    for (const auto& s : cols) { 
+        result.emplace_back(s, s); 
+    } 
+    return result; 
+} 
+ 
 TString TaggedValue(const TString& value, const TString& tag)
-{
-    if (!tag) {
-        return value;
-    }
-    return value + "-" + tag;
-}
-
+{ 
+    if (!tag) { 
+        return value; 
+    } 
+    return value + "-" + tag; 
+} 
+ 
 TVariants ValueVars(const TVariants& values, const TString& tag)
-{
-    TVariants ret;
-    for (auto& p : values) {
-        ret.emplace_back(TaggedValue(p.first, tag), p.second);
-    }
-    return ret;
-}
-
+{ 
+    TVariants ret; 
+    for (auto& p : values) { 
+        ret.emplace_back(TaggedValue(p.first, tag), p.second); 
+    } 
+    return ret; 
+} 
+ 
 TVariants TagVars(const TString& value, const TVariants& tags)
-{
-    TVariants ret;
-    for (auto& p : tags) {
-        ret.emplace_back(TaggedValue(value, p.first), p.second);
-    }
-    return ret;
-}
-
-TVariants SeriesTags()
-{
-    TVariants ret; // MSVS2013 doesn't understand complex initializer lists
-    ret.emplace_back("", "as is");
-    ret.emplace_back("stack", "cumulative");
-    return ret;
-}
-
-void SeriesSelectors(TStringStream& ss, const TCgiParameters& e,
+{ 
+    TVariants ret; 
+    for (auto& p : tags) { 
+        ret.emplace_back(TaggedValue(value, p.first), p.second); 
+    } 
+    return ret; 
+} 
+ 
+TVariants SeriesTags() 
+{ 
+    TVariants ret; // MSVS2013 doesn't understand complex initializer lists 
+    ret.emplace_back("", "as is"); 
+    ret.emplace_back("stack", "cumulative"); 
+    return ret; 
+} 
+ 
+void SeriesSelectors(TStringStream& ss, const TCgiParameters& e, 
                      const TString& xparam, const TString& yparam, const NAnalytics::TTable& data)
-{
-    TTags xtags;
+{ 
+    TTags xtags; 
     TString xn = ParseTagsOut(e.Get(xparam), xtags);
-    DropdownSelector<Erasable, true>(ss, e, xparam, e.Get(xparam), "with Ox:",
-                                 ValueVars(ListColumns(data), JoinTags(xtags)));
-    if (xn) {
-        DropdownSelector<Link, true>(ss, e, xparam, e.Get(xparam), "",
-                                     TagVars(xn, SeriesTags()));
-    }
-
+    DropdownSelector<Erasable, true>(ss, e, xparam, e.Get(xparam), "with Ox:", 
+                                 ValueVars(ListColumns(data), JoinTags(xtags))); 
+    if (xn) { 
+        DropdownSelector<Link, true>(ss, e, xparam, e.Get(xparam), "", 
+                                     TagVars(xn, SeriesTags())); 
+    } 
+ 
     TString yns = e.Get(yparam);
-    SelectorTitle(ss, "and Oy:");
-    bool first = true;
-    bool hasEmpty = false;
-    for (auto& subvalue : Subvalues(e, yparam)) {
-        TTags ytags;
+    SelectorTitle(ss, "and Oy:"); 
+    bool first = true; 
+    bool hasEmpty = false; 
+    for (auto& subvalue : Subvalues(e, yparam)) { 
+        TTags ytags; 
         TString yn = ParseTagsOut(subvalue, ytags);
-        DropdownSelector<Erasable, true>(ss, e, yparam, subvalue, first? "": ", ",
-                                         ValueVars(ListColumns(data), JoinTags(ytags)));
-        if (yn) {
-            DropdownSelector<Link, true>(ss, e, yparam, subvalue, "",
-                                         TagVars(yn, SeriesTags()));
-        }
-        first = false;
-        if (yn.empty()) {
-            hasEmpty = true;
-        }
-    }
-
-    if (hasEmpty) {
-        throw TPageGen<TSelectorsContainer>(ss.Str());
-    } else {
-        BtnHref<Button|ExtraSmall>(ss, "+", MakeUrlAddSub(e, yparam, ""));
-    }
-
-    if (!xn || !yns) {
-        throw TPageGen<TSelectorsContainer>(ss.Str());
-    }
-}
-
+        DropdownSelector<Erasable, true>(ss, e, yparam, subvalue, first? "": ", ", 
+                                         ValueVars(ListColumns(data), JoinTags(ytags))); 
+        if (yn) { 
+            DropdownSelector<Link, true>(ss, e, yparam, subvalue, "", 
+                                         TagVars(yn, SeriesTags())); 
+        } 
+        first = false; 
+        if (yn.empty()) { 
+            hasEmpty = true; 
+        } 
+    } 
+ 
+    if (hasEmpty) { 
+        throw TPageGen<TSelectorsContainer>(ss.Str()); 
+    } else { 
+        BtnHref<Button|ExtraSmall>(ss, "+", MakeUrlAddSub(e, yparam, "")); 
+    } 
+ 
+    if (!xn || !yns) { 
+        throw TPageGen<TSelectorsContainer>(ss.Str()); 
+    } 
+} 
+ 
 class TProbesHtmlPrinter {
 private:
     TVector<TVector<TString>> TableData;
-    static constexpr int TimeoutSec = 15 * 60; // default timeout
+    static constexpr int TimeoutSec = 15 * 60; // default timeout 
 public:
     void Push(const NLWTrace::TProbe* probe)
     {
         TableData.emplace_back();
-        auto& row = TableData.back();
-
+        auto& row = TableData.back(); 
+ 
         row.emplace_back();
         TString& groups = row.back();
         bool first = true;
         for (const char* const* i = probe->Event.Groups; *i != nullptr; ++i, first = false) {
             groups.append(TString(first? "": ", ") + GroupHtml(*i));
         }
-
-        row.push_back(ProbeHtml(probe->Event.GetProvider(), probe->Event.Name));
-
+ 
+        row.push_back(ProbeHtml(probe->Event.GetProvider(), probe->Event.Name)); 
+ 
         row.emplace_back();
         TString& params = row.back();
         first = true;
         for (size_t i = 0; i < probe->Event.Signature.ParamCount; i++, first = false) {
             params.append(TString(first? "": ", ") + probe->Event.Signature.ParamTypes[i]
-                          + " " + probe->Event.Signature.ParamNames[i]);
+                          + " " + probe->Event.Signature.ParamNames[i]); 
         }
-
-        row.emplace_back(ToString(probe->GetExecutorsCount()));
+ 
+        row.emplace_back(ToString(probe->GetExecutorsCount())); 
     }
-
+ 
     void Output(IOutputStream& os)
-    {
-        HTML(os) {
-            TABLE() {
-                TABLEHEAD() {
-                    TABLEH() { os << "Groups"; }
-                    TABLEH() { os << "Name"; }
-                    TABLEH() { os << "Params"; }
-                    TABLEH() { os << "ExecCount"; }
-                }
-                TABLEBODY() {
-                    for (auto& row : TableData) {
-                        TABLER() {
+    { 
+        HTML(os) { 
+            TABLE() { 
+                TABLEHEAD() { 
+                    TABLEH() { os << "Groups"; } 
+                    TABLEH() { os << "Name"; } 
+                    TABLEH() { os << "Params"; } 
+                    TABLEH() { os << "ExecCount"; } 
+                } 
+                TABLEBODY() { 
+                    for (auto& row : TableData) { 
+                        TABLER() { 
                             for (TString& cell : row) {
-                                TABLED() { os << cell; }
-                            }
-                        }
-                    }
-                }
-            }
-        }
-    }
-private:
+                                TABLED() { os << cell; } 
+                            } 
+                        } 
+                    } 
+                } 
+            } 
+        } 
+    } 
+private: 
     TString GroupHtml(const TString& group)
-    {
-        TStringStream ss;
-        ss << "<div class=\"dropdown\" style=\"display:inline-block\">"
-                 "<a href=\"#\" data-toggle=\"dropdown\">" << group << "</a>"
-                 "<ul class=\"dropdown-menu\">"
-                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "',"
-                     "{id:'" << TAdHocTraceConfig(group).Id() << "'});\">"
-                     "Trace 1000 items</a></li>"
-                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "',"
-                     "{id:'" << TAdHocTraceConfig(group, 10000).Id() << "'});\">"
-                     "Trace 10000 items</a></li>"
-                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "',"
-                     "{id:'" << TAdHocTraceConfig(group, 0, 1000000).Id() << "'});\">"
-                     "Trace 1 second</a></li>"
-                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "',"
-                     "{id:'" << TAdHocTraceConfig(group, 0, 10000000).Id() << "'});\">"
-                     "Trace 10 seconds</a></li>"
-                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "',"
-                     "{id:'" << TAdHocTraceConfig(group, 0, 0, true).Id() << "'});\">"
-                     "Trace 1000 tracks</a></li>"
-                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "',"
-                     "{id:'" << TAdHocTraceConfig(group, 10000, 0, true).Id() << "'});\">"
-                     "Trace 10000 tracks</a></li>"
-                 "</ul>"
-           "</div>";
-        return ss.Str();
-    }
-
+    { 
+        TStringStream ss; 
+        ss << "<div class=\"dropdown\" style=\"display:inline-block\">" 
+                 "<a href=\"#\" data-toggle=\"dropdown\">" << group << "</a>" 
+                 "<ul class=\"dropdown-menu\">" 
+                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "'," 
+                     "{id:'" << TAdHocTraceConfig(group).Id() << "'});\">" 
+                     "Trace 1000 items</a></li>" 
+                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "'," 
+                     "{id:'" << TAdHocTraceConfig(group, 10000).Id() << "'});\">" 
+                     "Trace 10000 items</a></li>" 
+                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "'," 
+                     "{id:'" << TAdHocTraceConfig(group, 0, 1000000).Id() << "'});\">" 
+                     "Trace 1 second</a></li>" 
+                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "'," 
+                     "{id:'" << TAdHocTraceConfig(group, 0, 10000000).Id() << "'});\">" 
+                     "Trace 10 seconds</a></li>" 
+                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "'," 
+                     "{id:'" << TAdHocTraceConfig(group, 0, 0, true).Id() << "'});\">" 
+                     "Trace 1000 tracks</a></li>" 
+                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "'," 
+                     "{id:'" << TAdHocTraceConfig(group, 10000, 0, true).Id() << "'});\">" 
+                     "Trace 10000 tracks</a></li>" 
+                 "</ul>" 
+           "</div>"; 
+        return ss.Str(); 
+    } 
+ 
     TString ProbeHtml(const TString& provider, const TString& probe)
-    {
-        TStringStream ss;
-        ss << "<div class=\"dropdown\">"
-                 "<a href=\"#\" data-toggle=\"dropdown\">" << probe << "</a>"
-                 "<ul class=\"dropdown-menu\">"
-                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "',"
-                     "{id:'" << TAdHocTraceConfig(provider, probe).Id() << "'});\">"
-                     "Trace 1000 items</a></li>"
-                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "',"
-                     "{id:'" << TAdHocTraceConfig(provider, probe, 10000).Id() << "'});\">"
-                     "Trace 10000 items</a></li>"
-                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "',"
-                     "{id:'" << TAdHocTraceConfig(provider, probe, 0, 1000000).Id() << "'});\">"
-                     "Trace 1 second</a></li>"
-                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "',"
-                     "{id:'" << TAdHocTraceConfig(provider, probe, 0, 10000000).Id() << "'});\">"
-                     "Trace 10 seconds</a></li>"
-                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "',"
-                     "{id:'" << TAdHocTraceConfig(provider, probe, 0, 0, true).Id() << "'});\">"
-                     "Trace 1000 tracks</a></li>"
-                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "',"
-                     "{id:'" << TAdHocTraceConfig(provider, probe, 10000, 0, true).Id() << "'});\">"
-                     "Trace 10000 tracks</a></li>"
-                 "</ul>"
-           "</div>";
-        return ss.Str();
-    }
+    { 
+        TStringStream ss; 
+        ss << "<div class=\"dropdown\">" 
+                 "<a href=\"#\" data-toggle=\"dropdown\">" << probe << "</a>" 
+                 "<ul class=\"dropdown-menu\">" 
+                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "'," 
+                     "{id:'" << TAdHocTraceConfig(provider, probe).Id() << "'});\">" 
+                     "Trace 1000 items</a></li>" 
+                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "'," 
+                     "{id:'" << TAdHocTraceConfig(provider, probe, 10000).Id() << "'});\">" 
+                     "Trace 10000 items</a></li>" 
+                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "'," 
+                     "{id:'" << TAdHocTraceConfig(provider, probe, 0, 1000000).Id() << "'});\">" 
+                     "Trace 1 second</a></li>" 
+                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "'," 
+                     "{id:'" << TAdHocTraceConfig(provider, probe, 0, 10000000).Id() << "'});\">" 
+                     "Trace 10 seconds</a></li>" 
+                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "'," 
+                     "{id:'" << TAdHocTraceConfig(provider, probe, 0, 0, true).Id() << "'});\">" 
+                     "Trace 1000 tracks</a></li>" 
+                   "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=new&ui=y&timeout=" << TimeoutSec << "'," 
+                     "{id:'" << TAdHocTraceConfig(provider, probe, 10000, 0, true).Id() << "'});\">" 
+                     "Trace 10000 tracks</a></li>" 
+                 "</ul>" 
+           "</div>"; 
+        return ss.Str(); 
+    } 
 };
 
-void TDashboardRegistry::Register(const NLWTrace::TDashboard& dashboard) {
+void TDashboardRegistry::Register(const NLWTrace::TDashboard& dashboard) { 
     TGuard<TMutex> g(Mutex);
     Dashboards[dashboard.GetName()] = dashboard;
 }
 
-void TDashboardRegistry::Register(const TVector<NLWTrace::TDashboard>& dashboards) {
-    for (const auto& dashboard : dashboards) {
-        Register(dashboard);
-    }
-}
-
+void TDashboardRegistry::Register(const TVector<NLWTrace::TDashboard>& dashboards) { 
+    for (const auto& dashboard : dashboards) { 
+        Register(dashboard); 
+    } 
+} 
+ 
 void TDashboardRegistry::Register(const TString& dashText) {
-    NLWTrace::TDashboard dash;
+    NLWTrace::TDashboard dash; 
     if (!google::protobuf::TextFormat::ParseFromString(dashText, &dash)) {
         ythrow yexception() << "Couldn't parse into dashboard";
     }
     Register(dash);
 }
 
-bool TDashboardRegistry::Get(const TString& name, NLWTrace::TDashboard& dash) {
+bool TDashboardRegistry::Get(const TString& name, NLWTrace::TDashboard& dash) { 
     TGuard<TMutex> g(Mutex);
     if (!Dashboards.contains(name)) {
         return false;
@@ -1698,488 +1698,488 @@ void TDashboardRegistry::Output(TStringStream& ss) {
     }
 }
 
-class ILogSource {
-public:
-    virtual ~ILogSource() {}
+class ILogSource { 
+public: 
+    virtual ~ILogSource() {} 
     virtual TString GetId() = 0;
-    virtual TInstant GetStartTime() = 0;
-    virtual TDuration GetTimeout(TInstant now) = 0;
-    virtual ui64 GetEventsCount() = 0;
-    virtual ui64 GetThreadsCount() = 0;
-};
-
-class TTraceLogSource : public ILogSource {
-private:
+    virtual TInstant GetStartTime() = 0; 
+    virtual TDuration GetTimeout(TInstant now) = 0; 
+    virtual ui64 GetEventsCount() = 0; 
+    virtual ui64 GetThreadsCount() = 0; 
+}; 
+ 
+class TTraceLogSource : public ILogSource { 
+private: 
     TString Id;
-    const TTraceCleaner& Cleaner;
-    const NLWTrace::TSession* Trace;
-public:
-    TTraceLogSource(const TString& id, const NLWTrace::TSession* trace, const TTraceCleaner& cleaner)
-        : Id(id)
-        , Cleaner(cleaner)
-        , Trace(trace)
-    {}
-
+    const TTraceCleaner& Cleaner; 
+    const NLWTrace::TSession* Trace; 
+public: 
+    TTraceLogSource(const TString& id, const NLWTrace::TSession* trace, const TTraceCleaner& cleaner) 
+        : Id(id) 
+        , Cleaner(cleaner) 
+        , Trace(trace) 
+    {} 
+ 
     TString GetId() override
-    {
-        return Id;
-    }
-
-    TInstant GetStartTime() override
-    {
-        return Trace->GetStartTime();
-    }
-
-    TDuration GetTimeout(TInstant now) override
-    {
-        TInstant deadline = Cleaner.GetDeadline(Id);
-        if (deadline < now) {
-            return TDuration::Zero();
-        } else if (deadline == TInstant::Max()) {
-            return TDuration::Max();
-        } else {
-            return deadline - now;
-        }
-    }
-
-    ui64 GetEventsCount() override
-    {
-        return Trace->GetEventsCount();
-    }
-
-    ui64 GetThreadsCount() override
-    {
-        return Trace->GetThreadsCount();
-    }
-};
-
-class TSnapshotLogSource : public ILogSource {
-private:
+    { 
+        return Id; 
+    } 
+ 
+    TInstant GetStartTime() override 
+    { 
+        return Trace->GetStartTime(); 
+    } 
+ 
+    TDuration GetTimeout(TInstant now) override 
+    { 
+        TInstant deadline = Cleaner.GetDeadline(Id); 
+        if (deadline < now) { 
+            return TDuration::Zero(); 
+        } else if (deadline == TInstant::Max()) { 
+            return TDuration::Max(); 
+        } else { 
+            return deadline - now; 
+        } 
+    } 
+ 
+    ui64 GetEventsCount() override 
+    { 
+        return Trace->GetEventsCount(); 
+    } 
+ 
+    ui64 GetThreadsCount() override 
+    { 
+        return Trace->GetThreadsCount(); 
+    } 
+}; 
+ 
+class TSnapshotLogSource : public ILogSource { 
+private: 
     TString Sid;
-    // Log should be used for read-only purpose, because it can be accessed from multiple threads
-    // Atomic pointer is used to avoid thread-safety issues with snapshot deletion
-    // (I hope protobuf const-implementation doesn't use any mutable non-thread-safe stuff inside)
-    TAtomicSharedPtr<NLWTrace::TLogPb> Log;
-public:
-    // Constructor should be called under SnapshotsMtx lock
+    // Log should be used for read-only purpose, because it can be accessed from multiple threads 
+    // Atomic pointer is used to avoid thread-safety issues with snapshot deletion 
+    // (I hope protobuf const-implementation doesn't use any mutable non-thread-safe stuff inside) 
+    TAtomicSharedPtr<NLWTrace::TLogPb> Log; 
+public: 
+    // Constructor should be called under SnapshotsMtx lock 
     TSnapshotLogSource(const TString& sid, const TAtomicSharedPtr<NLWTrace::TLogPb>& log)
-        : Sid(sid)
-        , Log(log)
-    {}
-
+        : Sid(sid) 
+        , Log(log) 
+    {} 
+ 
     TString GetId() override
-    {
-        return Sid + "~";
-    }
-
-    TInstant GetStartTime() override
-    {
-        return TInstant::MicroSeconds(Log->GetCrtTime());
-    }
-
-    TDuration GetTimeout(TInstant now) override
-    {
-        Y_UNUSED(now);
-        return TDuration::Max();
-    }
-
-    ui64 GetEventsCount() override
-    {
-        return Log->GetEventsCount();
-    }
-
-    ui64 GetThreadsCount() override
-    {
-        return Log->ThreadLogsSize();
-    }
-};
-
-class TLogSources {
-private:
-    TTraceCleaner& Cleaner;
-    TInstant Now;
+    { 
+        return Sid + "~"; 
+    } 
+ 
+    TInstant GetStartTime() override 
+    { 
+        return TInstant::MicroSeconds(Log->GetCrtTime()); 
+    } 
+ 
+    TDuration GetTimeout(TInstant now) override 
+    { 
+        Y_UNUSED(now); 
+        return TDuration::Max(); 
+    } 
+ 
+    ui64 GetEventsCount() override 
+    { 
+        return Log->GetEventsCount(); 
+    } 
+ 
+    ui64 GetThreadsCount() override 
+    { 
+        return Log->ThreadLogsSize(); 
+    } 
+}; 
+ 
+class TLogSources { 
+private: 
+    TTraceCleaner& Cleaner; 
+    TInstant Now; 
     using TLogSourcePtr = std::unique_ptr<ILogSource>;
     TMap<TString, TLogSourcePtr> LogSources;
-public:
-    explicit TLogSources(TTraceCleaner& cleaner, TInstant now = TInstant::Now())
-        : Cleaner(cleaner)
-        , Now(now)
-    {}
-
+public: 
+    explicit TLogSources(TTraceCleaner& cleaner, TInstant now = TInstant::Now()) 
+        : Cleaner(cleaner) 
+        , Now(now) 
+    {} 
+ 
     void Push(const TString& sid, const TAtomicSharedPtr<NLWTrace::TLogPb>& log)
-    {
-        TLogSourcePtr ls(new TSnapshotLogSource(sid, log));
+    { 
+        TLogSourcePtr ls(new TSnapshotLogSource(sid, log)); 
         LogSources.emplace(ls->GetId(), std::move(ls));
-    }
-
-    void Push(const TString& id, const NLWTrace::TSession* trace)
-    {
-        TLogSourcePtr ls(new TTraceLogSource(id, trace, Cleaner));
+    } 
+ 
+    void Push(const TString& id, const NLWTrace::TSession* trace) 
+    { 
+        TLogSourcePtr ls(new TTraceLogSource(id, trace, Cleaner)); 
         LogSources.emplace(ls->GetId(), std::move(ls));
-    }
-
-    template <class TFunc>
-    void ForEach(TFunc& func)
-    {
-        for (auto& kv : LogSources) {
+    } 
+ 
+    template <class TFunc> 
+    void ForEach(TFunc& func) 
+    { 
+        for (auto& kv : LogSources) { 
             func.Push(kv.second.get());
-        }
-    }
-
-    template <class TFunc>
-    void ForEach(TFunc& func) const
-    {
-        for (const auto& kv : LogSources) {
+        } 
+    } 
+ 
+    template <class TFunc> 
+    void ForEach(TFunc& func) const 
+    { 
+        for (const auto& kv : LogSources) { 
             func.Push(kv.second.get());
-        }
-    }
-};
-
+        } 
+    } 
+}; 
+ 
 class TTracesHtmlPrinter {
 private:
     IOutputStream& Os;
-    TInstant Now;
+    TInstant Now; 
 public:
     explicit TTracesHtmlPrinter(IOutputStream& os)
         : Os(os)
-        , Now(TInstant::Now())
+        , Now(TInstant::Now()) 
     {}
 
-    void Push(ILogSource* src)
+    void Push(ILogSource* src) 
     {
         TString id = src->GetId();
         Os << "<tr>";
         Os << "<td>";
         try {
-            Os << src->GetStartTime().ToStringUpToSeconds();
+            Os << src->GetStartTime().ToStringUpToSeconds(); 
         } catch (...) {
             Os << "error: " << CurrentExceptionMessage();
         }
         Os << "</td>"
-           << "<td><div class=\"dropdown\">"
-                "<a href=\"#\" data-toggle=\"dropdown\">" << TimeoutToString(src->GetTimeout(Now)) << "</a>"
-                "<ul class=\"dropdown-menu\">"
-                  "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=settimeout&ui=y&timeout=60', {id:'" << id << "'});\">1 min</a></li>"
-                  "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=settimeout&ui=y&timeout=600', {id:'" << id << "'});\">10 min</a></li>"
-                  "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=settimeout&ui=y&timeout=3600', {id:'" << id << "'});\">1 hour</a></li>"
-                  "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=settimeout&ui=y&timeout=86400', {id:'" << id << "'});\">1 day</a></li>"
-                  "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=settimeout&ui=y&timeout=604800', {id:'" << id << "'});\">1 week</a></li>"
-                  "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=settimeout&ui=y', {id:'" << id << "'});\">no timeout</a></li>"
-                "</ul>"
-              "</div></td>"
+           << "<td><div class=\"dropdown\">" 
+                "<a href=\"#\" data-toggle=\"dropdown\">" << TimeoutToString(src->GetTimeout(Now)) << "</a>" 
+                "<ul class=\"dropdown-menu\">" 
+                  "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=settimeout&ui=y&timeout=60', {id:'" << id << "'});\">1 min</a></li>" 
+                  "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=settimeout&ui=y&timeout=600', {id:'" << id << "'});\">10 min</a></li>" 
+                  "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=settimeout&ui=y&timeout=3600', {id:'" << id << "'});\">1 hour</a></li>" 
+                  "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=settimeout&ui=y&timeout=86400', {id:'" << id << "'});\">1 day</a></li>" 
+                  "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=settimeout&ui=y&timeout=604800', {id:'" << id << "'});\">1 week</a></li>" 
+                  "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=settimeout&ui=y', {id:'" << id << "'});\">no timeout</a></li>" 
+                "</ul>" 
+              "</div></td>" 
            << "<td>" << EncodeHtmlPcdata(id) << "</td>"
-           << "<td>" << src->GetEventsCount() << "</td>"
-           << "<td>" << src->GetThreadsCount() << "</td>"
+           << "<td>" << src->GetEventsCount() << "</td>" 
+           << "<td>" << src->GetThreadsCount() << "</td>" 
            << "<td><a href=\"?mode=log&id=" << id << "\">Text</a></td>"
            << "<td><a href=\"?mode=log&format=json&id=" << id << "\">Json</a></td>"
            << "<td><a href=\"?mode=query&id=" << id << "\">Query</a></td>"
-           << "<td><a href=\"?mode=analytics&id=" << id << "\">Analytics</a></td>"
-           << "<td><div class=\"dropdown navbar-right\">" // navbar-right is hack to drop left
-                    "<a href=\"#\" data-toggle=\"dropdown\">Modify</a>"
-                    "<ul class=\"dropdown-menu\">"
-                      "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=make_snapshot&ui=y', {id:'" << id << "'});\">Snapshot</a></li>"
-                      "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=delete&ui=y', {id:'" << id << "'});\">Delete</a></li>"
-                    "</ul>"
-              "</div></td>"
+           << "<td><a href=\"?mode=analytics&id=" << id << "\">Analytics</a></td>" 
+           << "<td><div class=\"dropdown navbar-right\">" // navbar-right is hack to drop left 
+                    "<a href=\"#\" data-toggle=\"dropdown\">Modify</a>" 
+                    "<ul class=\"dropdown-menu\">" 
+                      "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=make_snapshot&ui=y', {id:'" << id << "'});\">Snapshot</a></li>" 
+                      "<li><a href=\"#\" onClick=\"$.redirectPost('?mode=delete&ui=y', {id:'" << id << "'});\">Delete</a></li>" 
+                    "</ul>" 
+              "</div></td>" 
            << "</tr>\n";
     }
-private:
+private: 
     static TString TimeoutToString(TDuration d)
-    {
-        TStringStream ss;
-        if (d == TDuration::Zero()) {
-            ss << "0";
-        } else if (d == TDuration::Max()) {
-            ss << "-";
-        } else {
-            ui64 us = d.GetValue();
-            ui64 ms = us / 1000;
-            ui64 sec = ms / 1000;
-            ui64 min = sec / 60;
-            ui64 hours = min / 60;
-            ui64 days = hours / 24;
-            ui64 weeks = days / 7;
-            us -= ms * 1000;
-            ms -= sec * 1000;
-            sec -= min * 60;
-            min -= hours * 60;
-            hours -= days * 24;
-            days -= weeks * 7;
-            int terms = 0;
-            if ((terms > 0 && terms < 2) || ( terms == 0 && weeks)) { ss << (ss.Str()? " ": "") << weeks << "w"; terms++; }
-            if ((terms > 0 && terms < 2) || ( terms == 0 && days))  { ss << (ss.Str()? " ": "") << days  << "d"; terms++; }
-            if ((terms > 0 && terms < 2) || ( terms == 0 && hours)) { ss << (ss.Str()? " ": "") << hours << "h"; terms++; }
-            if ((terms > 0 && terms < 2) || ( terms == 0 && min))   { ss << (ss.Str()? " ": "") << min   << "m"; terms++; }
-            if ((terms > 0 && terms < 2) || ( terms == 0 && sec))   { ss << (ss.Str()? " ": "") << sec   << "s"; terms++; }
-            if ((terms > 0 && terms < 2) || ( terms == 0 && ms))    { ss << (ss.Str()? " ": "") << ms   << "ms"; terms++; }
-            if ((terms > 0 && terms < 2) || ( terms == 0 && us))    { ss << (ss.Str()? " ": "") << us   << "us"; terms++; }
-        }
-        return ss.Str();
-    }
+    { 
+        TStringStream ss; 
+        if (d == TDuration::Zero()) { 
+            ss << "0"; 
+        } else if (d == TDuration::Max()) { 
+            ss << "-"; 
+        } else { 
+            ui64 us = d.GetValue(); 
+            ui64 ms = us / 1000; 
+            ui64 sec = ms / 1000; 
+            ui64 min = sec / 60; 
+            ui64 hours = min / 60; 
+            ui64 days = hours / 24; 
+            ui64 weeks = days / 7; 
+            us -= ms * 1000; 
+            ms -= sec * 1000; 
+            sec -= min * 60; 
+            min -= hours * 60; 
+            hours -= days * 24; 
+            days -= weeks * 7; 
+            int terms = 0; 
+            if ((terms > 0 && terms < 2) || ( terms == 0 && weeks)) { ss << (ss.Str()? " ": "") << weeks << "w"; terms++; } 
+            if ((terms > 0 && terms < 2) || ( terms == 0 && days))  { ss << (ss.Str()? " ": "") << days  << "d"; terms++; } 
+            if ((terms > 0 && terms < 2) || ( terms == 0 && hours)) { ss << (ss.Str()? " ": "") << hours << "h"; terms++; } 
+            if ((terms > 0 && terms < 2) || ( terms == 0 && min))   { ss << (ss.Str()? " ": "") << min   << "m"; terms++; } 
+            if ((terms > 0 && terms < 2) || ( terms == 0 && sec))   { ss << (ss.Str()? " ": "") << sec   << "s"; terms++; } 
+            if ((terms > 0 && terms < 2) || ( terms == 0 && ms))    { ss << (ss.Str()? " ": "") << ms   << "ms"; terms++; } 
+            if ((terms > 0 && terms < 2) || ( terms == 0 && us))    { ss << (ss.Str()? " ": "") << us   << "us"; terms++; } 
+        } 
+        return ss.Str(); 
+    } 
 };
 
-class TTracesLister {
-private:
-    TVariants& Variants;
-public:
-    TTracesLister(TVariants& variants)
-        : Variants(variants)
-    {}
-    void Push(ILogSource* src)
-    {
-        Variants.emplace_back(src->GetId(), src->GetId());
-    }
-};
-
-TVariants ListTraces(const TLogSources& srcs)
-{
-    TVariants variants;
-    TTracesLister lister(variants);
-    srcs.ForEach(lister);
-    return variants;
-}
-
-class TTimestampCutter {
-private:
+class TTracesLister { 
+private: 
+    TVariants& Variants; 
+public: 
+    TTracesLister(TVariants& variants) 
+        : Variants(variants) 
+    {} 
+    void Push(ILogSource* src) 
+    { 
+        Variants.emplace_back(src->GetId(), src->GetId()); 
+    } 
+}; 
+ 
+TVariants ListTraces(const TLogSources& srcs) 
+{ 
+    TVariants variants; 
+    TTracesLister lister(variants); 
+    srcs.ForEach(lister); 
+    return variants; 
+} 
+ 
+class TTimestampCutter { 
+private: 
     THashMap<TThread::TId, std::pair<ui64, TInstant>> CutTsForThread; // tid -> time of first item
-    mutable ui64 CutTsMax = 0;
-    mutable TInstant CutInstantMax;
-    bool Enabled;
-    ui64 NowTs;
-public:
-    explicit TTimestampCutter(bool enabled)
-        : Enabled(enabled)
-        , NowTs(GetCycleCount())
-    {}
-
-    void Push(TThread::TId tid, const NLWTrace::TLogItem& item)
-    {
-        auto it = CutTsForThread.find(tid);
-        if (it != CutTsForThread.end()) {
-            ui64& ts = it->second.first;
-            TInstant& inst = it->second.second;
-            ts = Min(ts, item.TimestampCycles);
-            inst = Min(inst, item.Timestamp);
-        } else {
-            CutTsForThread[tid] = std::make_pair(item.TimestampCycles, item.Timestamp);
-        }
-    }
-
-    // Timestamp from which we are ensured that cyclic log for every thread is not truncated
-    // NOTE: should NOT be called from Push(tid, item) functions
-    ui64 StartTimestamp() const
-    {
-        if (CutTsMax == 0) {
-            FindStartTime();
-        }
-        return CutTsMax;
-    }
-
-    ui64 NowTimestamp() const
-    {
-        return NowTs;
-    }
-
-    TInstant StartInstant() const
-    {
-        if (CutInstantMax == TInstant::Zero()) {
-            FindStartTime();
-        }
-        return CutInstantMax;
-    }
-
-    // Returns true iff item should be skipped to avoid surprizes
-    bool Skip(const NLWTrace::TLogItem& item) const
-    {
-        return Enabled && item.TimestampCycles < StartTimestamp();
-    }
-
-private:
-    void FindStartTime() const
-    {
-        for (auto& kv : CutTsForThread) {
-            CutTsMax = Max(CutTsMax, kv.second.first);
-            CutInstantMax = Max(CutInstantMax, kv.second.second);
-        }
-    }
-};
-
+    mutable ui64 CutTsMax = 0; 
+    mutable TInstant CutInstantMax; 
+    bool Enabled; 
+    ui64 NowTs; 
+public: 
+    explicit TTimestampCutter(bool enabled) 
+        : Enabled(enabled) 
+        , NowTs(GetCycleCount()) 
+    {} 
+ 
+    void Push(TThread::TId tid, const NLWTrace::TLogItem& item) 
+    { 
+        auto it = CutTsForThread.find(tid); 
+        if (it != CutTsForThread.end()) { 
+            ui64& ts = it->second.first; 
+            TInstant& inst = it->second.second; 
+            ts = Min(ts, item.TimestampCycles); 
+            inst = Min(inst, item.Timestamp); 
+        } else { 
+            CutTsForThread[tid] = std::make_pair(item.TimestampCycles, item.Timestamp); 
+        } 
+    } 
+ 
+    // Timestamp from which we are ensured that cyclic log for every thread is not truncated 
+    // NOTE: should NOT be called from Push(tid, item) functions 
+    ui64 StartTimestamp() const 
+    { 
+        if (CutTsMax == 0) { 
+            FindStartTime(); 
+        } 
+        return CutTsMax; 
+    } 
+ 
+    ui64 NowTimestamp() const 
+    { 
+        return NowTs; 
+    } 
+ 
+    TInstant StartInstant() const 
+    { 
+        if (CutInstantMax == TInstant::Zero()) { 
+            FindStartTime(); 
+        } 
+        return CutInstantMax; 
+    } 
+ 
+    // Returns true iff item should be skipped to avoid surprizes 
+    bool Skip(const NLWTrace::TLogItem& item) const 
+    { 
+        return Enabled && item.TimestampCycles < StartTimestamp(); 
+    } 
+ 
+private: 
+    void FindStartTime() const 
+    { 
+        for (auto& kv : CutTsForThread) { 
+            CutTsMax = Max(CutTsMax, kv.second.first); 
+            CutInstantMax = Max(CutInstantMax, kv.second.second); 
+        } 
+    } 
+}; 
+ 
 class TLogFilter {
 private:
-    struct TFilter {
+    struct TFilter { 
         TString ParamName;
         TString ParamValue;
-        bool Parsed;
-
-        TLogQuery Query;
-        NLWTrace::TLiteral Value;
-
+        bool Parsed; 
+ 
+        TLogQuery Query; 
+        NLWTrace::TLiteral Value; 
+ 
         explicit TFilter(const TString& text)
-        {
-            if (!text) { // Neither ParamName nor ParamValue is selected
-                ParamName.clear();
-                ParamValue.clear();
-                Parsed = false;
-                return;
-            }
-            size_t pos = text.find('=');
+        { 
+            if (!text) { // Neither ParamName nor ParamValue is selected 
+                ParamName.clear(); 
+                ParamValue.clear(); 
+                Parsed = false; 
+                return; 
+            } 
+            size_t pos = text.find('='); 
             if (pos == TString::npos) { // Only ParamName has been selected
-                ParamName = text;
-                ParamValue.clear();
-                Parsed = false;
-                return;
-            }
-            // Both ParamName and ParamValue have been selected
-            ParamValue = text.substr(pos + 1);
-            ParamName = text.substr(0, pos);
-            Parsed = true;
-
-            Query = TLogQuery(ParamName);
-            Value = NLWTrace::TLiteral(ParamValue);
-        }
-    };
+                ParamName = text; 
+                ParamValue.clear(); 
+                Parsed = false; 
+                return; 
+            } 
+            // Both ParamName and ParamValue have been selected 
+            ParamValue = text.substr(pos + 1); 
+            ParamName = text.substr(0, pos); 
+            Parsed = true; 
+ 
+            Query = TLogQuery(ParamName); 
+            Value = NLWTrace::TLiteral(ParamValue); 
+        } 
+    }; 
     TVector<TFilter> Filters;
     THashSet<const NLWTrace::TSignature*> Signatures; // Just to list param names
-    TVariants ParamNames;
+    TVariants ParamNames; 
     THashMap<TString, THashSet<TString>> FilteredParamValues; // paramName -> { paramValue }
 public:
     explicit TLogFilter(const TVector<TString>& filters)
     {
         for (const TString& subvalue : filters) {
-            TFilter filter(subvalue);
-            FilteredParamValues[filter.ParamName]; // just create empty set to gather values later
-            if (filter.Parsed) {
-                Filters.push_back(filter);
-            }
+            TFilter filter(subvalue); 
+            FilteredParamValues[filter.ParamName]; // just create empty set to gather values later 
+            if (filter.Parsed) { 
+                Filters.push_back(filter); 
+            } 
         }
     }
 
-    virtual ~TLogFilter() {}
-
-    template <class TLog>
-    bool Filter(const TLog& log)
+    virtual ~TLogFilter() {} 
+ 
+    template <class TLog> 
+    bool Filter(const TLog& log) 
     {
-        Gather(log);
-        for (const TFilter& filter : Filters) {
-            if (filter.Query.ExecuteQuery(log) != filter.Value) {
-                return false;
+        Gather(log); 
+        for (const TFilter& filter : Filters) { 
+            if (filter.Query.ExecuteQuery(log) != filter.Value) { 
+                return false; 
             }
         }
-        return true;
+        return true; 
     }
-
+ 
     void FilterSelectors(TStringStream& ss, const TCgiParameters& e, const TString& fparam)
-    {
-        bool first = true;
-        bool allParsed = true;
+    { 
+        bool first = true; 
+        bool allParsed = true; 
         for (const TString& subvalue : Subvalues(e, fparam)) {
-            TFilter filter(subvalue);
-            allParsed = allParsed && filter.Parsed;
-            if (first) {
-                SelectorTitle(ss, "where");
-            }
-            DropdownSelector<Erasable | CompositeValue, true>(
-                ss, e, fparam, subvalue, first? "": ", ", ListParamNames(),
-                filter.ParamName
-            );
-            if (filter.ParamName) {
-                DropdownSelector<Link | CompositeValue, true>(
-                    ss, e, fparam, subvalue, "=", ListParamValues(filter.ParamName),
-                    filter.ParamValue? (filter.ParamName + "=" + filter.ParamValue): ""
-                );
-            }
-            first = false;
-        }
-
-        if (!allParsed) {
-            throw TPageGen<TSelectorsContainer>(ss.Str());
-        } else {
-            BtnHref<Button|ExtraSmall>(ss, first? "where": "+", MakeUrlAddSub(e, fparam, ""));
-        }
-    }
-
-    const TVariants& ListParamNames()
-    {
-        if (ParamNames.empty()) {
+            TFilter filter(subvalue); 
+            allParsed = allParsed && filter.Parsed; 
+            if (first) { 
+                SelectorTitle(ss, "where"); 
+            } 
+            DropdownSelector<Erasable | CompositeValue, true>( 
+                ss, e, fparam, subvalue, first? "": ", ", ListParamNames(), 
+                filter.ParamName 
+            ); 
+            if (filter.ParamName) { 
+                DropdownSelector<Link | CompositeValue, true>( 
+                    ss, e, fparam, subvalue, "=", ListParamValues(filter.ParamName), 
+                    filter.ParamValue? (filter.ParamName + "=" + filter.ParamValue): "" 
+                ); 
+            } 
+            first = false; 
+        } 
+ 
+        if (!allParsed) { 
+            throw TPageGen<TSelectorsContainer>(ss.Str()); 
+        } else { 
+            BtnHref<Button|ExtraSmall>(ss, first? "where": "+", MakeUrlAddSub(e, fparam, "")); 
+        } 
+    } 
+ 
+    const TVariants& ListParamNames() 
+    { 
+        if (ParamNames.empty()) { 
             THashSet<TString> paramNames;
-            for (const NLWTrace::TSignature* sgn: Signatures) {
-                for (size_t pi = 0; pi < sgn->ParamCount; pi++) {
-                    paramNames.insert(sgn->ParamNames[pi]);
-                }
-            }
-            for (auto& pn : paramNames) {
-                ParamNames.emplace_back(pn, pn);
-            }
-        }
-        return ParamNames;
-    }
-
+            for (const NLWTrace::TSignature* sgn: Signatures) { 
+                for (size_t pi = 0; pi < sgn->ParamCount; pi++) { 
+                    paramNames.insert(sgn->ParamNames[pi]); 
+                } 
+            } 
+            for (auto& pn : paramNames) { 
+                ParamNames.emplace_back(pn, pn); 
+            } 
+        } 
+        return ParamNames; 
+    } 
+ 
     bool IsFiltered(const TString& paramName) const
-    {
+    { 
         return FilteredParamValues.contains(paramName);
-    }
-
-private:
-    // Gather param names and values for selectors
-    void Gather(const NLWTrace::TLogItem& item)
-    {
-        Signatures.insert(&item.Probe->Event.Signature);
-        if (!FilteredParamValues.empty() && item.SavedParamsCount > 0) {
+    } 
+ 
+private: 
+    // Gather param names and values for selectors 
+    void Gather(const NLWTrace::TLogItem& item) 
+    { 
+        Signatures.insert(&item.Probe->Event.Signature); 
+        if (!FilteredParamValues.empty() && item.SavedParamsCount > 0) { 
             TString paramValues[LWTRACE_MAX_PARAMS];
-            item.Probe->Event.Signature.SerializeParams(item.Params, paramValues);
-            for (size_t pi = 0; pi < item.SavedParamsCount; pi++) {
-                auto iter = FilteredParamValues.find(item.Probe->Event.Signature.ParamNames[pi]);
-                if (iter != FilteredParamValues.end()) {
-                    iter->second.insert(paramValues[pi]);
-                }
-            }
-        }
-    }
-
-    void Gather(const NLWTrace::TTrackLog& tl)
-    {
-        for (const NLWTrace::TLogItem& item : tl.Items) {
-            Gather(item);
-        }
-    }
-
+            item.Probe->Event.Signature.SerializeParams(item.Params, paramValues); 
+            for (size_t pi = 0; pi < item.SavedParamsCount; pi++) { 
+                auto iter = FilteredParamValues.find(item.Probe->Event.Signature.ParamNames[pi]); 
+                if (iter != FilteredParamValues.end()) { 
+                    iter->second.insert(paramValues[pi]); 
+                } 
+            } 
+        } 
+    } 
+ 
+    void Gather(const NLWTrace::TTrackLog& tl) 
+    { 
+        for (const NLWTrace::TLogItem& item : tl.Items) { 
+            Gather(item); 
+        } 
+    } 
+ 
     TVariants ListParamValues(const TString& paramName) const
-    {
-        TVariants result;
-        auto iter = FilteredParamValues.find(paramName);
-        if (iter != FilteredParamValues.end()) {
+    { 
+        TVariants result; 
+        auto iter = FilteredParamValues.find(paramName); 
+        if (iter != FilteredParamValues.end()) { 
             for (const TString& paramValue : iter->second) {
-                result.emplace_back(paramName + "=" + paramValue, paramValue);
-            }
-        }
-        Sort(result.begin(), result.end());
-        return result;
-    }
+                result.emplace_back(paramName + "=" + paramValue, paramValue); 
+            } 
+        } 
+        Sort(result.begin(), result.end()); 
+        return result; 
+    } 
 };
 
-static void EscapeJSONString(IOutputStream& os, const TString& s)
-{
-    for (TString::const_iterator i = s.begin(), e = s.end(); i != e; ++i) {
-        char c = *i;
-        if (c < ' ') {
-            os << Sprintf("\\u%04x", int(c));
-        } else if (c == '"') {
-            os << "\\\"";
-        } else if (c == '\\') {
-            os << "\\\\";
-        } else {
-            os << c;
-        }
-    }
-}
-
-static TString EscapeJSONString(const TString& s)
-{
-    TStringStream ss;
-    EscapeJSONString(ss, s);
-    return ss.Str();
-}
-
+static void EscapeJSONString(IOutputStream& os, const TString& s) 
+{ 
+    for (TString::const_iterator i = s.begin(), e = s.end(); i != e; ++i) { 
+        char c = *i; 
+        if (c < ' ') { 
+            os << Sprintf("\\u%04x", int(c)); 
+        } else if (c == '"') { 
+            os << "\\\""; 
+        } else if (c == '\\') { 
+            os << "\\\\"; 
+        } else { 
+            os << c; 
+        } 
+    } 
+} 
+ 
+static TString EscapeJSONString(const TString& s) 
+{ 
+    TStringStream ss; 
+    EscapeJSONString(ss, s); 
+    return ss.Str(); 
+} 
+ 
 class TLogJsonPrinter {
 private:
     IOutputStream& Os;
@@ -2199,15 +2199,15 @@ public:
               ;
     }
 
-    void OutputFooter(const NLWTrace::TSession* trace)
+    void OutputFooter(const NLWTrace::TSession* trace) 
     {
         Os << "\n\t\t]"
               "\n\t, \"threads\": ["
               ;
-        trace->ReadThreads(*this);
+        trace->ReadThreads(*this); 
         Os << "]"
-              "\n\t, \"events_count\": " << trace->GetEventsCount() <<
-              "\n\t, \"threads_count\": " << trace->GetThreadsCount() <<
+              "\n\t, \"events_count\": " << trace->GetEventsCount() << 
+              "\n\t, \"threads_count\": " << trace->GetThreadsCount() << 
               "\n\t, \"timestamp\": " << Now().GetValue() <<
               "\n}"
               ;
@@ -2219,7 +2219,7 @@ public:
         FirstThread = false;
     }
 
-    void Push(TThread::TId tid, const NLWTrace::TLogItem& item)
+    void Push(TThread::TId tid, const NLWTrace::TLogItem& item) 
     {
         Os << "\n\t\t" << (FirstItem? "": ", ");
         FirstItem = false;
@@ -2246,31 +2246,31 @@ public:
 
 class TLogTextPrinter : public TLogFilter {
 private:
-    TMultiMap<NLWTrace::TTypedParam, std::pair<TThread::TId, NLWTrace::TLogItem> > Items;
-    TMultiMap<NLWTrace::TTypedParam, NLWTrace::TTrackLog> Depot;
-    THashMap<NLWTrace::TProbe*, size_t> ProbeId;
-    TVector<NLWTrace::TProbe*> Probes;
-    TTimestampCutter CutTs;
-    TLogQuery Order;
-    bool ReverseOrder = false;
-    ui64 Head = 0;
-    ui64 Tail = 0;
-    bool ShowTs = false;
+    TMultiMap<NLWTrace::TTypedParam, std::pair<TThread::TId, NLWTrace::TLogItem> > Items; 
+    TMultiMap<NLWTrace::TTypedParam, NLWTrace::TTrackLog> Depot; 
+    THashMap<NLWTrace::TProbe*, size_t> ProbeId; 
+    TVector<NLWTrace::TProbe*> Probes; 
+    TTimestampCutter CutTs; 
+    TLogQuery Order; 
+    bool ReverseOrder = false; 
+    ui64 Head = 0; 
+    ui64 Tail = 0; 
+    bool ShowTs = false; 
 public:
-    TLogTextPrinter(const TVector<TString>& filters, ui64 head, ui64 tail, const TString& order, bool reverseOrder, bool cutTs, bool showTs)
-        : TLogFilter(filters)
-        , CutTs(cutTs)
-        , Order(order)
-        , ReverseOrder(reverseOrder)
-        , Head(head)
-        , Tail(tail)
-        , ShowTs(showTs)
-    {}
-
+    TLogTextPrinter(const TVector<TString>& filters, ui64 head, ui64 tail, const TString& order, bool reverseOrder, bool cutTs, bool showTs) 
+        : TLogFilter(filters) 
+        , CutTs(cutTs) 
+        , Order(order) 
+        , ReverseOrder(reverseOrder) 
+        , Head(head) 
+        , Tail(tail) 
+        , ShowTs(showTs) 
+    {} 
+ 
     TLogTextPrinter(const TCgiParameters& e)
         : TLogTextPrinter(
-            Subvalues(e, "f"),
-            e.Has("head")? FromString<ui64>(e.Get("head")): 0,
+            Subvalues(e, "f"), 
+            e.Has("head")? FromString<ui64>(e.Get("head")): 0, 
             e.Has("tail")? FromString<ui64>(e.Get("tail")): 0,
             e.Get("s"),
             e.Get("reverse") == "y",
@@ -2278,1630 +2278,1630 @@ public:
             e.Get("showts") == "y")
     {}
 
-    enum EFormat {
-        Text,
-        Json
-    };
-
+    enum EFormat { 
+        Text, 
+        Json 
+    }; 
+ 
     void Output(IOutputStream& os) const
     {
-        OutputItems<Text>(os);
-        OutputDepot<Text>(os);
-    }
-
-    void OutputJson(IOutputStream& os) const
-    {
-        os << "{\"depot\":[\n";
-        OutputItems<Json>(os);
-        OutputDepot<Json>(os);
-        os << "],\"probes\":[";
-        bool first = true;
-        for (const NLWTrace::TProbe* probe : Probes) {
-            os << (first? "": ",") << "{\"provider\":\"" << probe->Event.GetProvider()
-                << "\",\"name\":\"" << probe->Event.Name << "\"}";
-            first = false;
-        }
-        os << "]}";
-    }
-
-    NLWTrace::TTypedParam GetKey(const NLWTrace::TLogItem& item)
-    {
-        return Order? Order.ExecuteQuery(item): NLWTrace::TTypedParam(item.GetTimestampCycles());
-    }
-
-    NLWTrace::TTypedParam GetKey(const NLWTrace::TTrackLog& tl)
-    {
-        return Order? Order.ExecuteQuery(tl): NLWTrace::TTypedParam(tl.GetTimestampCycles());
-    }
-
-    void Push(TThread::TId tid, const NLWTrace::TLogItem& item)
-    {
-        CutTs.Push(tid, item);
+        OutputItems<Text>(os); 
+        OutputDepot<Text>(os); 
+    }
+
+    void OutputJson(IOutputStream& os) const 
+    { 
+        os << "{\"depot\":[\n"; 
+        OutputItems<Json>(os); 
+        OutputDepot<Json>(os); 
+        os << "],\"probes\":["; 
+        bool first = true; 
+        for (const NLWTrace::TProbe* probe : Probes) { 
+            os << (first? "": ",") << "{\"provider\":\"" << probe->Event.GetProvider() 
+                << "\",\"name\":\"" << probe->Event.Name << "\"}"; 
+            first = false; 
+        } 
+        os << "]}"; 
+    } 
+ 
+    NLWTrace::TTypedParam GetKey(const NLWTrace::TLogItem& item) 
+    { 
+        return Order? Order.ExecuteQuery(item): NLWTrace::TTypedParam(item.GetTimestampCycles()); 
+    } 
+ 
+    NLWTrace::TTypedParam GetKey(const NLWTrace::TTrackLog& tl) 
+    { 
+        return Order? Order.ExecuteQuery(tl): NLWTrace::TTypedParam(tl.GetTimestampCycles()); 
+    } 
+ 
+    void Push(TThread::TId tid, const NLWTrace::TLogItem& item) 
+    {
+        CutTs.Push(tid, item); 
         if (Filter(item)) {
-            AddId(item);
-            Items.emplace(GetKey(item), std::make_pair(tid, item));
-        }
-    }
-
-    void Push(TThread::TId tid, const NLWTrace::TTrackLog& tl)
-    {
-        Y_UNUSED(tid);
-        if (Filter(tl)) {
-            AddId(tl);
-            Depot.emplace(GetKey(tl), tl);
-        }
-    }
-
+            AddId(item); 
+            Items.emplace(GetKey(item), std::make_pair(tid, item)); 
+        }
+    }
+ 
+    void Push(TThread::TId tid, const NLWTrace::TTrackLog& tl) 
+    { 
+        Y_UNUSED(tid); 
+        if (Filter(tl)) { 
+            AddId(tl); 
+            Depot.emplace(GetKey(tl), tl); 
+        } 
+    } 
+ 
 private:
-    void AddId(const NLWTrace::TLogItem& item)
-    {
-        if (ProbeId.find(item.Probe) == ProbeId.end()) {
-            size_t id = Probes.size();
-            ProbeId[item.Probe] = id;
-            Probes.emplace_back(item.Probe);
-        }
-    }
-
-    void AddId(const NLWTrace::TTrackLog& tl)
-    {
-        for (const auto& item : tl.Items) {
-            AddId(item);
-        }
-    }
-
-    bool HeadTailFilter(ui64 idx, ui64 size) const
-    {
-        bool headOk = idx < Head;
-        bool tailOk = size < Tail + idx + 1ull;
-        if (Head && Tail) {
-            return headOk || tailOk;
-        } else if (Head) {
-            return headOk;
-        } else if (Tail) {
-            return tailOk;
-        } else {
-            return true;
-        }
-    }
-
-    template <EFormat Format>
+    void AddId(const NLWTrace::TLogItem& item) 
+    { 
+        if (ProbeId.find(item.Probe) == ProbeId.end()) { 
+            size_t id = Probes.size(); 
+            ProbeId[item.Probe] = id; 
+            Probes.emplace_back(item.Probe); 
+        } 
+    } 
+ 
+    void AddId(const NLWTrace::TTrackLog& tl) 
+    { 
+        for (const auto& item : tl.Items) { 
+            AddId(item); 
+        } 
+    } 
+ 
+    bool HeadTailFilter(ui64 idx, ui64 size) const 
+    { 
+        bool headOk = idx < Head; 
+        bool tailOk = size < Tail + idx + 1ull; 
+        if (Head && Tail) { 
+            return headOk || tailOk; 
+        } else if (Head) { 
+            return headOk; 
+        } else if (Tail) { 
+            return tailOk; 
+        } else { 
+            return true; 
+        } 
+    } 
+ 
+    template <EFormat Format> 
     void OutputItems(IOutputStream& os) const
-    {
-        ui64 idx = 0;
-        ui64 size = Items.size();
-        ui64 startTs = ShowTs? CutTs.StartTimestamp(): 0;
-        ui64 prevTs = 0;
-        bool first = true;
-        if (!ReverseOrder) {
-            for (auto i = Items.begin(), e = Items.end(); i != e; ++i, idx++) {
-                if (HeadTailFilter(idx, size)) {
-                    OutputItem<Format, true>(os, i->second.first, i->second.second, startTs, prevTs, first);
-                    prevTs = startTs? i->second.second.GetTimestampCycles(): 0;
-                }
-            }
-        } else {
-            for (auto i = Items.rbegin(), e = Items.rend(); i != e; ++i, idx++) {
-                if (HeadTailFilter(idx, size)) {
-                    OutputItem<Format, true>(os, i->second.first, i->second.second, startTs, prevTs, first);
-                    prevTs = startTs? i->second.second.GetTimestampCycles(): 0;
-                }
-            }
-        }
-    }
-
-    template <EFormat Format>
+    { 
+        ui64 idx = 0; 
+        ui64 size = Items.size(); 
+        ui64 startTs = ShowTs? CutTs.StartTimestamp(): 0; 
+        ui64 prevTs = 0; 
+        bool first = true; 
+        if (!ReverseOrder) { 
+            for (auto i = Items.begin(), e = Items.end(); i != e; ++i, idx++) { 
+                if (HeadTailFilter(idx, size)) { 
+                    OutputItem<Format, true>(os, i->second.first, i->second.second, startTs, prevTs, first); 
+                    prevTs = startTs? i->second.second.GetTimestampCycles(): 0; 
+                } 
+            } 
+        } else { 
+            for (auto i = Items.rbegin(), e = Items.rend(); i != e; ++i, idx++) { 
+                if (HeadTailFilter(idx, size)) { 
+                    OutputItem<Format, true>(os, i->second.first, i->second.second, startTs, prevTs, first); 
+                    prevTs = startTs? i->second.second.GetTimestampCycles(): 0; 
+                } 
+            } 
+        } 
+    } 
+ 
+    template <EFormat Format> 
     void OutputDepot(IOutputStream& os) const
-    {
-        ui64 idx = 0;
-        ui64 size = Depot.size();
-        bool first = true;
-        if (!ReverseOrder) {
-            for (auto i = Depot.begin(), e = Depot.end(); i != e; ++i, idx++) {
-                if (HeadTailFilter(idx, size)) {
-                    OutputTrackLog<Format>(os, i->second, first);
-                }
-            }
-        } else {
-            for (auto i = Depot.rbegin(), e = Depot.rend(); i != e; ++i, idx++) {
-                if (HeadTailFilter(idx, size)) {
-                    OutputTrackLog<Format>(os, i->second, first);
-                }
-            }
-        }
-    }
-
-    template <EFormat Format, bool AsTrack = false>
-    void OutputItem(IOutputStream& os, TThread::TId tid, const NLWTrace::TLogItem& item, ui64 startTs, ui64 prevTs, bool& first) const
-    {
-        if (CutTs.Skip(item)) {
-            return;
-        }
-        if constexpr (Format == Text) {
-            if (startTs) {
-                if (!prevTs) {
-                    prevTs = item.GetTimestampCycles();
-                }
-                os << Sprintf("%10.3lf %+10.3lf ms ",
-                    NHPTimer::GetSeconds(item.GetTimestampCycles() - startTs) * 1000.0,
-                    NHPTimer::GetSeconds(item.GetTimestampCycles() - prevTs) * 1000.0);
-            }
-            if (tid) {
-                os << "<" << tid << "> ";
-            }
-            if (item.Timestamp != TInstant::Zero()) {
-                os << "[" << item.Timestamp << "] ";
-            } else {
-                os << "[" << item.TimestampCycles << "] ";
-            }
-            os << GetProbeName(item.Probe) << "(";
-            if (item.SavedParamsCount > 0) {
-                TString ParamValues[LWTRACE_MAX_PARAMS];
-                item.Probe->Event.Signature.SerializeParams(item.Params, ParamValues);
-                bool first = true;
-                for (size_t i = 0; i < item.SavedParamsCount; i++, first = false) {
-                    os << (first? "": ", ") << item.Probe->Event.Signature.ParamNames[i] << "='" << EscapeC(ParamValues[i]) << "'";
-                }
-            }
-            os << ")\n";
-        } else if constexpr (Format == Json) {
-            if (auto probeId = ProbeId.find(item.Probe); probeId != ProbeId.end()) {
-                os << (first? "": ",") << (AsTrack? "[":"") << "[\"" << tid << "\",\"";
-                if (item.Timestamp != TInstant::Zero()) {
-                    os << item.Timestamp.MicroSeconds();
-                } else {
-                    os << Sprintf("%.3lf", NHPTimer::GetSeconds(item.TimestampCycles) * 1e9);
-                }
-                os << "\"," << probeId->second << ",{";
-                if (item.SavedParamsCount > 0) {
-                    TString ParamValues[LWTRACE_MAX_PARAMS];
-                    item.Probe->Event.Signature.SerializeParams(item.Params, ParamValues);
-                    bool first = true;
-                    for (size_t i = 0; i < item.SavedParamsCount; i++, first = false) {
-                        os << (first? "": ",") << "\"" << item.Probe->Event.Signature.ParamNames[i] << "\":\"";
-                        EscapeJSONString(os, ParamValues[i]);
-                        os << "\"";
-                    }
-                }
-                os << "}]" << (AsTrack? "]":"");
-            }
-        }
-        first = false;
-    }
-
-    template <EFormat Format>
-    void OutputTrackLog(IOutputStream& os, const NLWTrace::TTrackLog& tl, bool& first) const
-    {
-        if constexpr (Format == Json) {
-            os << (first? "": ",") << "[";
-        }
-        first = false;
-        ui64 prevTs = tl.GetTimestampCycles();
-        bool firstItem = true;
-        for (const NLWTrace::TTrackLog::TItem& item: tl.Items) {
-            OutputItem<Format>(os, item.ThreadId, item, tl.GetTimestampCycles(), prevTs, firstItem);
-            prevTs = item.GetTimestampCycles();
-        }
-        if constexpr (Format == Json) {
-            os << "]";
-        }
-        os << "\n";
-    }
+    { 
+        ui64 idx = 0; 
+        ui64 size = Depot.size(); 
+        bool first = true; 
+        if (!ReverseOrder) { 
+            for (auto i = Depot.begin(), e = Depot.end(); i != e; ++i, idx++) { 
+                if (HeadTailFilter(idx, size)) { 
+                    OutputTrackLog<Format>(os, i->second, first); 
+                } 
+            } 
+        } else { 
+            for (auto i = Depot.rbegin(), e = Depot.rend(); i != e; ++i, idx++) { 
+                if (HeadTailFilter(idx, size)) { 
+                    OutputTrackLog<Format>(os, i->second, first); 
+                } 
+            } 
+        } 
+    } 
+ 
+    template <EFormat Format, bool AsTrack = false> 
+    void OutputItem(IOutputStream& os, TThread::TId tid, const NLWTrace::TLogItem& item, ui64 startTs, ui64 prevTs, bool& first) const 
+    {
+        if (CutTs.Skip(item)) { 
+            return; 
+        } 
+        if constexpr (Format == Text) { 
+            if (startTs) { 
+                if (!prevTs) { 
+                    prevTs = item.GetTimestampCycles(); 
+                } 
+                os << Sprintf("%10.3lf %+10.3lf ms ", 
+                    NHPTimer::GetSeconds(item.GetTimestampCycles() - startTs) * 1000.0, 
+                    NHPTimer::GetSeconds(item.GetTimestampCycles() - prevTs) * 1000.0); 
+            } 
+            if (tid) { 
+                os << "<" << tid << "> "; 
+            }
+            if (item.Timestamp != TInstant::Zero()) { 
+                os << "[" << item.Timestamp << "] "; 
+            } else { 
+                os << "[" << item.TimestampCycles << "] "; 
+            } 
+            os << GetProbeName(item.Probe) << "("; 
+            if (item.SavedParamsCount > 0) { 
+                TString ParamValues[LWTRACE_MAX_PARAMS]; 
+                item.Probe->Event.Signature.SerializeParams(item.Params, ParamValues); 
+                bool first = true; 
+                for (size_t i = 0; i < item.SavedParamsCount; i++, first = false) { 
+                    os << (first? "": ", ") << item.Probe->Event.Signature.ParamNames[i] << "='" << EscapeC(ParamValues[i]) << "'"; 
+                } 
+            } 
+            os << ")\n"; 
+        } else if constexpr (Format == Json) { 
+            if (auto probeId = ProbeId.find(item.Probe); probeId != ProbeId.end()) { 
+                os << (first? "": ",") << (AsTrack? "[":"") << "[\"" << tid << "\",\""; 
+                if (item.Timestamp != TInstant::Zero()) { 
+                    os << item.Timestamp.MicroSeconds(); 
+                } else { 
+                    os << Sprintf("%.3lf", NHPTimer::GetSeconds(item.TimestampCycles) * 1e9); 
+                } 
+                os << "\"," << probeId->second << ",{"; 
+                if (item.SavedParamsCount > 0) { 
+                    TString ParamValues[LWTRACE_MAX_PARAMS]; 
+                    item.Probe->Event.Signature.SerializeParams(item.Params, ParamValues); 
+                    bool first = true; 
+                    for (size_t i = 0; i < item.SavedParamsCount; i++, first = false) { 
+                        os << (first? "": ",") << "\"" << item.Probe->Event.Signature.ParamNames[i] << "\":\""; 
+                        EscapeJSONString(os, ParamValues[i]); 
+                        os << "\""; 
+                    } 
+                } 
+                os << "}]" << (AsTrack? "]":""); 
+            } 
+        }
+        first = false; 
+    }
+ 
+    template <EFormat Format> 
+    void OutputTrackLog(IOutputStream& os, const NLWTrace::TTrackLog& tl, bool& first) const 
+    { 
+        if constexpr (Format == Json) { 
+            os << (first? "": ",") << "["; 
+        } 
+        first = false; 
+        ui64 prevTs = tl.GetTimestampCycles(); 
+        bool firstItem = true; 
+        for (const NLWTrace::TTrackLog::TItem& item: tl.Items) { 
+            OutputItem<Format>(os, item.ThreadId, item, tl.GetTimestampCycles(), prevTs, firstItem); 
+            prevTs = item.GetTimestampCycles(); 
+        } 
+        if constexpr (Format == Json) { 
+            os << "]"; 
+        } 
+        os << "\n"; 
+    } 
 };
 
-class TLogAnalyzer: public TLogFilter {
-private:
+class TLogAnalyzer: public TLogFilter { 
+private: 
     TMultiMap<ui64, std::pair<TThread::TId, NLWTrace::TLogItem>> Items;
     TVector<NLWTrace::TTrackLog> Depot;
     THashMap<TString, TTrackLogRefs> Groups;
-    NAnalytics::TTable Table;
-    bool TableCreated = false;
+    NAnalytics::TTable Table; 
+    bool TableCreated = false; 
     TVector<TString> GroupBy;
-    TTimestampCutter CutTs;
-public:
+    TTimestampCutter CutTs; 
+public: 
     TLogAnalyzer(const TVector<TString>& filters, const TVector<TString>& groupBy, bool cutTs)
-        : TLogFilter(filters)
-        , CutTs(cutTs)
-    {
+        : TLogFilter(filters) 
+        , CutTs(cutTs) 
+    { 
         for (const TString& groupParam : groupBy) {
-            GroupBy.push_back(groupParam);
-        }
-    }
-
-    const NAnalytics::TTable& GetTable()
-    {
-        if (!TableCreated) {
-            TableCreated = true;
-            if (GroupBy.empty()) {
-                for (auto i = Items.begin(), e = Items.end(); i != e; ++i) {
-                    ParseItems(i->second.first, i->second.second);
-                }
-                ParseDepot();
-            } else {
-                for (auto i = Items.begin(), e = Items.end(); i != e; ++i) {
-                    Map(i->second.first, i->second.second);
-                }
-                Reduce();
-            }
-        }
-        return Table;
-    }
-
-    void Push(TThread::TId tid, const NLWTrace::TLogItem& item)
-    {
-        CutTs.Push(tid, item);
-        if (Filter(item)) {
-            Items.emplace(item.TimestampCycles, std::make_pair(tid, item));
-        }
-    }
-
-    void Push(TThread::TId, const NLWTrace::TTrackLog& tl)
-    {
-        if (Filter(tl)) {
-            Depot.emplace_back(tl);
-        }
-    }
-private:
-    void FillRow(NAnalytics::TRow& row, const NLWTrace::TLogItem& item)
-    {
-        if (item.SavedParamsCount > 0) {
+            GroupBy.push_back(groupParam); 
+        } 
+    } 
+ 
+    const NAnalytics::TTable& GetTable() 
+    { 
+        if (!TableCreated) { 
+            TableCreated = true; 
+            if (GroupBy.empty()) { 
+                for (auto i = Items.begin(), e = Items.end(); i != e; ++i) { 
+                    ParseItems(i->second.first, i->second.second); 
+                } 
+                ParseDepot(); 
+            } else { 
+                for (auto i = Items.begin(), e = Items.end(); i != e; ++i) { 
+                    Map(i->second.first, i->second.second); 
+                } 
+                Reduce(); 
+            } 
+        } 
+        return Table; 
+    } 
+ 
+    void Push(TThread::TId tid, const NLWTrace::TLogItem& item) 
+    { 
+        CutTs.Push(tid, item); 
+        if (Filter(item)) { 
+            Items.emplace(item.TimestampCycles, std::make_pair(tid, item)); 
+        } 
+    } 
+ 
+    void Push(TThread::TId, const NLWTrace::TTrackLog& tl) 
+    { 
+        if (Filter(tl)) { 
+            Depot.emplace_back(tl); 
+        } 
+    } 
+private: 
+    void FillRow(NAnalytics::TRow& row, const NLWTrace::TLogItem& item) 
+    { 
+        if (item.SavedParamsCount > 0) { 
             TString paramValues[LWTRACE_MAX_PARAMS];
-            item.Probe->Event.Signature.SerializeParams(item.Params, paramValues);
-            for (size_t i = 0; i < item.SavedParamsCount; i++) {
+            item.Probe->Event.Signature.SerializeParams(item.Params, paramValues); 
+            for (size_t i = 0; i < item.SavedParamsCount; i++) { 
                 double value = FromString<double>(paramValues[i].data(), paramValues[i].size(), NAN);
                 // If value cannot be cast to double or is inf/nan -- assume it's a string
-                if (isfinite(value)) {
-                    row[item.Probe->Event.Signature.ParamNames[i]] = value;
+                if (isfinite(value)) { 
+                    row[item.Probe->Event.Signature.ParamNames[i]] = value; 
                 } else {
                     row[item.Probe->Event.Signature.ParamNames[i]] = paramValues[i];
-                }
-            }
-        }
-    }
-
+                } 
+            } 
+        } 
+    } 
+ 
     TString GetParam(const NLWTrace::TLogItem& item, TString* paramValues, const TString& paramName)
-    {
-        for (size_t pi = 0; pi < item.SavedParamsCount; pi++) {
-            if (paramName == item.Probe->Event.Signature.ParamNames[pi]) {
-                return paramValues[pi];
-            }
-        }
+    { 
+        for (size_t pi = 0; pi < item.SavedParamsCount; pi++) { 
+            if (paramName == item.Probe->Event.Signature.ParamNames[pi]) { 
+                return paramValues[pi]; 
+            } 
+        } 
         return TString();
-    }
-
+    } 
+ 
     TString GetGroup(const NLWTrace::TLogItem& item, TString* paramValues)
-    {
-        TStringStream ss;
-        bool first = true;
+    { 
+        TStringStream ss; 
+        bool first = true; 
         for (const TString& groupParam : GroupBy) {
-            ss << (first? "": "|") << GetParam(item, paramValues, groupParam);
-            first = false;
-        }
-        return ss.Str();
-    }
-
-    void ParseItems(TThread::TId tid, const NLWTrace::TLogItem& item)
-    {
-        if (CutTs.Skip(item)) {
-            return;
-        }
+            ss << (first? "": "|") << GetParam(item, paramValues, groupParam); 
+            first = false; 
+        } 
+        return ss.Str(); 
+    } 
+ 
+    void ParseItems(TThread::TId tid, const NLWTrace::TLogItem& item) 
+    { 
+        if (CutTs.Skip(item)) { 
+            return; 
+        } 
         Table.emplace_back();
-        NAnalytics::TRow& row = Table.back();
-        row["_thread"] = tid;
-        if (item.Timestamp != TInstant::Zero()) {
-            row["_wallTime"] = item.Timestamp.SecondsFloat();
-            row["_wallRTime"] = item.Timestamp.SecondsFloat() - CutTs.StartInstant().SecondsFloat();
-        }
-        row["_cycles"] = item.TimestampCycles;
-        row["_thrTime"] = CyclesToDuration((ui64)item.TimestampCycles).SecondsFloat();
-        row["_thrRTime"] = double(i64(item.TimestampCycles) - i64(CutTs.StartTimestamp())) / NHPTimer::GetCyclesPerSecond();
-        row["_thrNTime"] = double(i64(item.TimestampCycles) - i64(CutTs.NowTimestamp())) / NHPTimer::GetCyclesPerSecond();
-        row.Name = GetProbeName(item.Probe);
-        FillRow(row, item);
-    }
-
-    void Map(TThread::TId tid, const NLWTrace::TLogItem& item)
-    {
-        if (item.SavedParamsCount > 0 && !CutTs.Skip(item)) {
+        NAnalytics::TRow& row = Table.back(); 
+        row["_thread"] = tid; 
+        if (item.Timestamp != TInstant::Zero()) { 
+            row["_wallTime"] = item.Timestamp.SecondsFloat(); 
+            row["_wallRTime"] = item.Timestamp.SecondsFloat() - CutTs.StartInstant().SecondsFloat(); 
+        } 
+        row["_cycles"] = item.TimestampCycles; 
+        row["_thrTime"] = CyclesToDuration((ui64)item.TimestampCycles).SecondsFloat(); 
+        row["_thrRTime"] = double(i64(item.TimestampCycles) - i64(CutTs.StartTimestamp())) / NHPTimer::GetCyclesPerSecond(); 
+        row["_thrNTime"] = double(i64(item.TimestampCycles) - i64(CutTs.NowTimestamp())) / NHPTimer::GetCyclesPerSecond(); 
+        row.Name = GetProbeName(item.Probe); 
+        FillRow(row, item); 
+    } 
+ 
+    void Map(TThread::TId tid, const NLWTrace::TLogItem& item) 
+    { 
+        if (item.SavedParamsCount > 0 && !CutTs.Skip(item)) { 
             TString paramValues[LWTRACE_MAX_PARAMS];
-            item.Probe->Event.Signature.SerializeParams(item.Params, paramValues);
-            TTrackLogRefs& tl = Groups[GetGroup(item, paramValues)];
-            tl.Items.emplace_back(tid, item);
-        }
-    }
-
-    void Reduce()
-    {
-        for (auto& v : Groups) {
+            item.Probe->Event.Signature.SerializeParams(item.Params, paramValues); 
+            TTrackLogRefs& tl = Groups[GetGroup(item, paramValues)]; 
+            tl.Items.emplace_back(tid, item); 
+        } 
+    } 
+ 
+    void Reduce() 
+    { 
+        for (auto& v : Groups) { 
             const TString& group = v.first;
-            const TTrackLogRefs& tl = v.second;
+            const TTrackLogRefs& tl = v.second; 
             Table.emplace_back();
-            NAnalytics::TRow& row = Table.back();
-            row.Name = group;
-            for (const NLWTrace::TLogItem& item : tl.Items) {
-               FillRow(row, item);
-            }
-        }
-    }
-
-    void ParseDepot()
-    {
-        for (NLWTrace::TTrackLog& tl : Depot) {
-            Table.emplace_back();
-            NAnalytics::TRow& row = Table.back();
-            for (const NLWTrace::TLogItem& item : tl.Items) {
-                FillRow(row, item);
-            }
-        }
-    }
-};
-
-struct TSampleOpts {
-    bool ShowProvider = false;
-    size_t SizeLimit = 50;
-};
-
-enum ENodeType {
-    NT_ROOT,
-    NT_PROBE,
-    NT_PARAM
-};
-
-class TPatternTree;
-struct TPatternNode;
-
-struct TTrack : public TTrackLogRefs {
+            NAnalytics::TRow& row = Table.back(); 
+            row.Name = group; 
+            for (const NLWTrace::TLogItem& item : tl.Items) { 
+               FillRow(row, item); 
+            } 
+        } 
+    } 
+ 
+    void ParseDepot() 
+    { 
+        for (NLWTrace::TTrackLog& tl : Depot) { 
+            Table.emplace_back(); 
+            NAnalytics::TRow& row = Table.back(); 
+            for (const NLWTrace::TLogItem& item : tl.Items) { 
+                FillRow(row, item); 
+            } 
+        } 
+    } 
+}; 
+ 
+struct TSampleOpts { 
+    bool ShowProvider = false; 
+    size_t SizeLimit = 50; 
+}; 
+ 
+enum ENodeType { 
+    NT_ROOT, 
+    NT_PROBE, 
+    NT_PARAM 
+}; 
+ 
+class TPatternTree; 
+struct TPatternNode; 
+ 
+struct TTrack : public TTrackLogRefs { 
     TString TrackId;
-    TPatternNode* LastNode = nullptr;
-};
-
-using TTrackTr = TLogTraits<TTrackLogRefs>;
-using TTrackIter = TTrackTr::const_iterator;
-
-// Visitor for tree traversing
-class IVisitor {
-public:
-    virtual ~IVisitor() {}
-    virtual void Visit(TPatternNode* node) = 0;
-};
-
-// Per-node classifier
-class TClassifier {
-public:
-    explicit TClassifier(TPatternNode* node, ENodeType childType, bool keepHead = false)
-        : Node(node)
-        , KeepHead(keepHead)
-        , ChildType(childType)
-    {}
-    virtual ~TClassifier() {}
-    virtual TPatternNode* Classify(TTrackIter cur, const TTrack& track) = 0;
-    virtual void Accept(IVisitor* visitor) = 0;
-    virtual bool IsLeaf() = 0;
-    ENodeType GetChildType() const { return ChildType; }
-public:
-    TPatternNode* Node;
-    const bool KeepHead;
-    ENodeType ChildType;
-};
-
-// Track classification tree node
-struct TPatternNode {
+    TPatternNode* LastNode = nullptr; 
+}; 
+ 
+using TTrackTr = TLogTraits<TTrackLogRefs>; 
+using TTrackIter = TTrackTr::const_iterator; 
+ 
+// Visitor for tree traversing 
+class IVisitor { 
+public: 
+    virtual ~IVisitor() {} 
+    virtual void Visit(TPatternNode* node) = 0; 
+}; 
+ 
+// Per-node classifier 
+class TClassifier { 
+public: 
+    explicit TClassifier(TPatternNode* node, ENodeType childType, bool keepHead = false) 
+        : Node(node) 
+        , KeepHead(keepHead) 
+        , ChildType(childType) 
+    {} 
+    virtual ~TClassifier() {} 
+    virtual TPatternNode* Classify(TTrackIter cur, const TTrack& track) = 0; 
+    virtual void Accept(IVisitor* visitor) = 0; 
+    virtual bool IsLeaf() = 0; 
+    ENodeType GetChildType() const { return ChildType; } 
+public: 
+    TPatternNode* Node; 
+    const bool KeepHead; 
+    ENodeType ChildType; 
+}; 
+ 
+// Track classification tree node 
+struct TPatternNode { 
     TString Name;
-    TPatternNode* Parent = nullptr;
-    THolder<TClassifier> Classifier;
-    struct TDesc {
-        ENodeType Type = NT_ROOT;
-        // NT_PROBE
-        const NLWTrace::TProbe* Probe = nullptr;
-        // NT_PARAM
-        size_t Rollbacks = 0;
+    TPatternNode* Parent = nullptr; 
+    THolder<TClassifier> Classifier; 
+    struct TDesc { 
+        ENodeType Type = NT_ROOT; 
+        // NT_PROBE 
+        const NLWTrace::TProbe* Probe = nullptr; 
+        // NT_PARAM 
+        size_t Rollbacks = 0; 
         TString ParamName;
         TString ParamValue;
-    } Desc;
-
-    ui64 TrackCount = 0;
-    struct TTrackEntry {
-        TTrack* Track;
-        ui64 ResTotal;
-        ui64 ResLast;
-
-        TTrackEntry(TTrack* track, ui64 resTotal, ui64 resLast)
-            : Track(track)
-            , ResTotal(resTotal)
-            , ResLast(resLast)
-        {}
-    };
-
+    } Desc; 
+ 
+    ui64 TrackCount = 0; 
+    struct TTrackEntry { 
+        TTrack* Track; 
+        ui64 ResTotal; 
+        ui64 ResLast; 
+ 
+        TTrackEntry(TTrack* track, ui64 resTotal, ui64 resLast) 
+            : Track(track) 
+            , ResTotal(resTotal) 
+            , ResLast(resLast) 
+        {} 
+    }; 
+ 
     TVector<TTrackEntry> Tracks;
-
-    ui64 ResTotalSum = 0;
-    ui64 ResTotalMax = 0;
+ 
+    ui64 ResTotalSum = 0; 
+    ui64 ResTotalMax = 0; 
     TVector<ui64> ResTotalAll;
-
-    ui64 ResLastSum = 0;
-    ui64 ResLastMax = 0;
+ 
+    ui64 ResLastSum = 0; 
+    ui64 ResLastMax = 0; 
     TVector<ui64> ResLastAll;
-
+ 
     TVector<ui64> TimelineSum;
-    NAnalytics::TTable Slices;
-
+    NAnalytics::TTable Slices; 
+ 
     TString GetPath() const
-    {
-        if (Parent) {
-            return Parent->GetPath() + Name;
-        }
-        return "/";
-    }
-
-    NAnalytics::TTable GetTable() const
-    {
-        using namespace NAnalytics;
-        NAnalytics::TTable ret;
-        for (ui64 x : ResTotalAll) {
+    { 
+        if (Parent) { 
+            return Parent->GetPath() + Name; 
+        } 
+        return "/"; 
+    } 
+ 
+    NAnalytics::TTable GetTable() const 
+    { 
+        using namespace NAnalytics; 
+        NAnalytics::TTable ret; 
+        for (ui64 x : ResTotalAll) { 
             ret.emplace_back();
-            TRow& row = ret.back();
-            row["resTotal"] = double(x) * 1000.0 / NHPTimer::GetClockRate();
-        }
-        for (ui64 x : ResLastAll) {
+            TRow& row = ret.back(); 
+            row["resTotal"] = double(x) * 1000.0 / NHPTimer::GetClockRate(); 
+        } 
+        for (ui64 x : ResLastAll) { 
             ret.emplace_back();
-            TRow& row = ret.back();
-            row["resLast"] = double(x) * 1000.0 / NHPTimer::GetClockRate();
-        }
-        return ret;
-    }
-
+            TRow& row = ret.back(); 
+            row["resLast"] = double(x) * 1000.0 / NHPTimer::GetClockRate(); 
+        } 
+        return ret; 
+    } 
+ 
     template <typename TReader>
     void OutputSample(const TString& bn, double b1, double b2, const TSampleOpts& opts, TReader& reader) const
-    {
-        bool filterTotal = false;
-        if (bn == "resTotal") {
-            filterTotal = true;
-        } else {
+    { 
+        bool filterTotal = false; 
+        if (bn == "resTotal") { 
+            filterTotal = true; 
+        } else { 
             WWW_CHECK(bn == "resLast", "wrong sample filter param: %s", bn.data());
-        }
-
-        size_t spaceLeft = opts.SizeLimit;
-        for (const TTrackEntry& entry : Tracks) {
-            const TTrack* track = entry.Track;
-            // Filter out tracks that are not in sample
-            if (filterTotal) {
-                double resTotalMs = double(entry.ResTotal) * 1000.0 / NHPTimer::GetClockRate();
-                if (resTotalMs < b1 || resTotalMs > b2) {
-                    continue;
-                }
-            } else {
-                double resLastMs = double(entry.ResLast) * 1000.0 / NHPTimer::GetClockRate();
-                if (resLastMs < b1 || resLastMs > b2) {
-                    continue;
-                }
-            }
-
+        } 
+ 
+        size_t spaceLeft = opts.SizeLimit; 
+        for (const TTrackEntry& entry : Tracks) { 
+            const TTrack* track = entry.Track; 
+            // Filter out tracks that are not in sample 
+            if (filterTotal) { 
+                double resTotalMs = double(entry.ResTotal) * 1000.0 / NHPTimer::GetClockRate(); 
+                if (resTotalMs < b1 || resTotalMs > b2) { 
+                    continue; 
+                } 
+            } else { 
+                double resLastMs = double(entry.ResLast) * 1000.0 / NHPTimer::GetClockRate(); 
+                if (resLastMs < b1 || resLastMs > b2) { 
+                    continue; 
+                } 
+            } 
+ 
             NLWTrace::TTrackLog tl;
             for (TTrackIter i = TTrackTr::begin(*track), e = TTrackTr::end(*track); i != e; ++i) {
-                const NLWTrace::TLogItem& item = *i;
+                const NLWTrace::TLogItem& item = *i; 
                 const auto threadId = i->ThreadId;
                 tl.Items.push_back(NLWTrace::TTrackLog::TItem(threadId, item));
-            }
+            } 
             reader.Push(0, tl);
-            if (spaceLeft) {
-                spaceLeft--;
-                if (!spaceLeft) {
-                    break;
-                }
-            }
-        }
-    }
-};
-
-// Track classification tree
-class TPatternTree {
-public:
-    // Per-node classifier by probe name
-    class TClassifyByProbe : public TClassifier {
-    private:
+            if (spaceLeft) { 
+                spaceLeft--; 
+                if (!spaceLeft) { 
+                    break; 
+                } 
+            } 
+        } 
+    } 
+}; 
+ 
+// Track classification tree 
+class TPatternTree { 
+public: 
+    // Per-node classifier by probe name 
+    class TClassifyByProbe : public TClassifier { 
+    private: 
         using TChildren = THashMap<NLWTrace::TProbe*, TPatternNode>;
-        TChildren Children;
+        TChildren Children; 
         TVector<TChildren::value_type*> SortedChildren;
-    public:
-        explicit TClassifyByProbe(TPatternNode* node)
-            : TClassifier(node, NT_PROBE)
-        {}
-
-        TPatternNode* Classify(TTrackIter cur, const TTrack& track) override
-        {
-            Y_UNUSED(track);
-            const NLWTrace::TLogItem& item = *cur;
-            TPatternNode* node = &Children[item.Probe];
-            node->Name = "/" + GetProbeName(item.Probe);
-            node->Desc.Type = NT_PROBE;
-            node->Desc.Probe = item.Probe;
-            return node;
-        }
-
-        void Accept(IVisitor* visitor) override
-        {
-            if (SortedChildren.size() != Children.size()) {
-                SortedChildren.clear();
-                SortedChildren.reserve(Children.size());
-                for (auto i = Children.begin(), e = Children.end(); i != e; ++i) {
-                    SortedChildren.push_back(&*i);
-                }
-                Sort(SortedChildren, [] (TChildren::value_type* lhs, TChildren::value_type* rhs) {
-                    NLWTrace::TProbe* lp = lhs->first;
-                    NLWTrace::TProbe* rp = rhs->first;
-                    if (int cmp = strcmp(lp->Event.GetProvider(), rp->Event.GetProvider())) {
-                        return cmp < 0;
-                    }
-                    return strcmp(lp->Event.Name, rp->Event.Name) < 0;
-                });
-            }
-            for (auto* kv : SortedChildren) {
-                visitor->Visit(&kv->second);
-            }
-        }
-
-        bool IsLeaf() override { return Children.empty(); }
-    };
-
-    // Per-node classifier by probe param value
-    class TClassifyByParam : public TClassifier {
-    private:
-        size_t Rollbacks; // How many items should we look back in track to locate probe
+    public: 
+        explicit TClassifyByProbe(TPatternNode* node) 
+            : TClassifier(node, NT_PROBE) 
+        {} 
+ 
+        TPatternNode* Classify(TTrackIter cur, const TTrack& track) override 
+        { 
+            Y_UNUSED(track); 
+            const NLWTrace::TLogItem& item = *cur; 
+            TPatternNode* node = &Children[item.Probe]; 
+            node->Name = "/" + GetProbeName(item.Probe); 
+            node->Desc.Type = NT_PROBE; 
+            node->Desc.Probe = item.Probe; 
+            return node; 
+        } 
+ 
+        void Accept(IVisitor* visitor) override 
+        { 
+            if (SortedChildren.size() != Children.size()) { 
+                SortedChildren.clear(); 
+                SortedChildren.reserve(Children.size()); 
+                for (auto i = Children.begin(), e = Children.end(); i != e; ++i) { 
+                    SortedChildren.push_back(&*i); 
+                } 
+                Sort(SortedChildren, [] (TChildren::value_type* lhs, TChildren::value_type* rhs) { 
+                    NLWTrace::TProbe* lp = lhs->first; 
+                    NLWTrace::TProbe* rp = rhs->first; 
+                    if (int cmp = strcmp(lp->Event.GetProvider(), rp->Event.GetProvider())) { 
+                        return cmp < 0; 
+                    } 
+                    return strcmp(lp->Event.Name, rp->Event.Name) < 0; 
+                }); 
+            } 
+            for (auto* kv : SortedChildren) { 
+                visitor->Visit(&kv->second); 
+            } 
+        } 
+ 
+        bool IsLeaf() override { return Children.empty(); } 
+    }; 
+ 
+    // Per-node classifier by probe param value 
+    class TClassifyByParam : public TClassifier { 
+    private: 
+        size_t Rollbacks; // How many items should we look back in track to locate probe 
         TString ParamName;
         using TChildren = THashMap<TString, TPatternNode>;
-        TChildren Children;
+        TChildren Children; 
         TVector<TChildren::value_type*> SortedChildren;
-    public:
+    public: 
         TClassifyByParam(TPatternNode* node, size_t rollbacks, const TString& paramName)
-            : TClassifier(node, NT_PARAM, true)
-            , Rollbacks(rollbacks)
-            , ParamName(paramName)
-        {}
-
-        TPatternNode* Classify(TTrackIter cur, const TTrack& track) override
-        {
-            WWW_CHECK((i64)Rollbacks >= 0 && std::distance(TTrackTr::begin(track), cur) >= (i64)Rollbacks, "wrong rollbacks in node '%s'",
+            : TClassifier(node, NT_PARAM, true) 
+            , Rollbacks(rollbacks) 
+            , ParamName(paramName) 
+        {} 
+ 
+        TPatternNode* Classify(TTrackIter cur, const TTrack& track) override 
+        { 
+            WWW_CHECK((i64)Rollbacks >= 0 && std::distance(TTrackTr::begin(track), cur) >= (i64)Rollbacks, "wrong rollbacks in node '%s'", 
                       Node->GetPath().data());
-            const NLWTrace::TLogItem& item = *(cur - Rollbacks);
-            WWW_CHECK(item.SavedParamsCount > 0, "classify by params on probe w/o param loggging in node '%s'",
+            const NLWTrace::TLogItem& item = *(cur - Rollbacks); 
+            WWW_CHECK(item.SavedParamsCount > 0, "classify by params on probe w/o param loggging in node '%s'", 
                       Node->GetPath().data());
             TString paramValues[LWTRACE_MAX_PARAMS];
             TString* paramValue = nullptr;
-            item.Probe->Event.Signature.SerializeParams(item.Params, paramValues);
-            for (size_t pi = 0; pi < item.SavedParamsCount; pi++) {
-                if (item.Probe->Event.Signature.ParamNames[pi] == ParamName) {
-                    paramValue = &paramValues[pi];
-                }
-            }
-            WWW_CHECK(paramValue, "param '%s' not found in probe '%s' at path '%s'",
+            item.Probe->Event.Signature.SerializeParams(item.Params, paramValues); 
+            for (size_t pi = 0; pi < item.SavedParamsCount; pi++) { 
+                if (item.Probe->Event.Signature.ParamNames[pi] == ParamName) { 
+                    paramValue = &paramValues[pi]; 
+                } 
+            } 
+            WWW_CHECK(paramValue, "param '%s' not found in probe '%s' at path '%s'", 
                       ParamName.data(), GetProbeName(item.Probe).data(), Node->GetPath().data());
-
-            TPatternNode* node = &Children[*paramValue];
-            // Path example: "//Provider1.Probe1/Provider2.Probe2@1.xxx=123@2.type=harakiri"
-            node->Name = "@" + ToString(Rollbacks) + "." + ParamName + "=" + *paramValue;
-            node->Desc.Type = NT_PARAM;
-            node->Desc.Rollbacks = Rollbacks;
-            node->Desc.ParamName = ParamName;
-            node->Desc.ParamValue = *paramValue;
-            return node;
-        }
-
-        void Accept(IVisitor* visitor) override
-        {
-            if (SortedChildren.size() != Children.size()) {
-                SortedChildren.clear();
-                SortedChildren.reserve(Children.size());
-                for (auto i = Children.begin(), e = Children.end(); i != e; ++i) {
-                    SortedChildren.push_back(&*i);
-                }
-                Sort(SortedChildren, [] (TChildren::value_type* lhs, TChildren::value_type* rhs) {
-                    return lhs->first < rhs->first;
-                });
-            }
-            for (auto* kv : SortedChildren) {
-                visitor->Visit(&kv->second);
-            }
-        }
-
-        bool IsLeaf() override { return Children.empty(); }
-    };
-private:
-    TPatternNode Root;
+ 
+            TPatternNode* node = &Children[*paramValue]; 
+            // Path example: "//Provider1.Probe1/Provider2.Probe2@1.xxx=123@2.type=harakiri" 
+            node->Name = "@" + ToString(Rollbacks) + "." + ParamName + "=" + *paramValue; 
+            node->Desc.Type = NT_PARAM; 
+            node->Desc.Rollbacks = Rollbacks; 
+            node->Desc.ParamName = ParamName; 
+            node->Desc.ParamValue = *paramValue; 
+            return node; 
+        } 
+ 
+        void Accept(IVisitor* visitor) override 
+        { 
+            if (SortedChildren.size() != Children.size()) { 
+                SortedChildren.clear(); 
+                SortedChildren.reserve(Children.size()); 
+                for (auto i = Children.begin(), e = Children.end(); i != e; ++i) { 
+                    SortedChildren.push_back(&*i); 
+                } 
+                Sort(SortedChildren, [] (TChildren::value_type* lhs, TChildren::value_type* rhs) { 
+                    return lhs->first < rhs->first; 
+                }); 
+            } 
+            for (auto* kv : SortedChildren) { 
+                visitor->Visit(&kv->second); 
+            } 
+        } 
+ 
+        bool IsLeaf() override { return Children.empty(); } 
+    }; 
+private: 
+    TPatternNode Root; 
     THashMap<TString, std::pair<size_t, TString>> ParamClassifiers; // path -> (rollbacks, param)
     TString SelectedPattern;
-    TPatternNode* SelectedNode = nullptr;
+    TPatternNode* SelectedNode = nullptr; 
     TVector<ui64> Timeline; // Just to avoid reallocations
-public:
-    TPatternTree(const TCgiParameters& e)
-    {
+public: 
+    TPatternTree(const TCgiParameters& e) 
+    { 
         for (const TString& cl : Subvalues(e, "classify")) {
-            size_t at = cl.find_last_of('@');
+            size_t at = cl.find_last_of('@'); 
             if (at != TString::npos) {
-                size_t dot = cl.find('.', at + 1);
+                size_t dot = cl.find('.', at + 1); 
                 if (dot != TString::npos) {
-                    size_t rollbacks = FromString<size_t>(cl.substr(at + 1, dot - at - 1));
-                    ParamClassifiers[cl.substr(0, at)] = std::make_pair(rollbacks, cl.substr(dot + 1));
-                }
-            }
-        }
-        SelectedPattern = e.Get("pattern");
-        InitNode(&Root, nullptr);
-    }
-
-    TPatternNode* GetSelectedNode()
-    {
-        return SelectedNode;
-    }
-
-    NAnalytics::TTable GetSelectedTable()
-    {
-        if (SelectedNode) {
-            return SelectedNode->GetTable();
-        } else {
-            return NAnalytics::TTable();
-        }
-    }
-
+                    size_t rollbacks = FromString<size_t>(cl.substr(at + 1, dot - at - 1)); 
+                    ParamClassifiers[cl.substr(0, at)] = std::make_pair(rollbacks, cl.substr(dot + 1)); 
+                } 
+            } 
+        } 
+        SelectedPattern = e.Get("pattern"); 
+        InitNode(&Root, nullptr); 
+    } 
+ 
+    TPatternNode* GetSelectedNode() 
+    { 
+        return SelectedNode; 
+    } 
+ 
+    NAnalytics::TTable GetSelectedTable() 
+    { 
+        if (SelectedNode) { 
+            return SelectedNode->GetTable(); 
+        } else { 
+            return NAnalytics::TTable(); 
+        } 
+    } 
+ 
     template <typename TReader>
     void OutputSelectedSample(const TString& bn, double b1, double b2, const TSampleOpts& opts, TReader& reader)
-    {
-        if (SelectedNode) {
+    { 
+        if (SelectedNode) { 
             SelectedNode->OutputSample(bn, b1, b2, opts, reader);
-        }
-    }
-
-    // Register track in given node
+        } 
+    } 
+ 
+    // Register track in given node 
     void AddTrackToNode(TPatternNode* node, TTrack& track, ui64 resTotal, TVector<ui64>& timeline)
-    {
-        if (!SelectedNode) {
-            if (node->GetPath() == SelectedPattern) {
-                SelectedNode = node;
-            }
-        }
-
-        // Counting
-        node->TrackCount++;
-
-        // Resource total
-        node->ResTotalSum += resTotal;
-        node->ResTotalMax = Max(node->ResTotalMax, resTotal);
-        node->ResTotalAll.push_back(resTotal);
-
-        // Resource last
-        ui64 resLast = 0;
-        resLast = resTotal - (timeline.size() < 2? 0: timeline[timeline.size() - 2]);
-        node->ResLastSum += resLast;
-        node->ResLastMax = Max(node->ResLastMax, resLast);
-        node->ResLastAll.push_back(resLast);
-
-        // Timeline
-        if (node->TimelineSum.size() < timeline.size()) {
-            node->TimelineSum.resize(timeline.size());
-        }
-        for (size_t i = 0; i < timeline.size(); i++) {
-            node->TimelineSum[i] += timeline[i];
-        }
-
-        if (node == SelectedNode && !timeline.empty()) {
-            node->Slices.emplace_back();
-            NAnalytics::TRow& row = node->Slices.back();
-            ui64 prev = 0;
-            for (size_t i = 0; i < timeline.size(); i++) {
-                // Note that col names should go in lexicographical order
-                // in the same way as slices go in pattern timeline
-                double sliceMs = double(timeline[i] - prev) * 1000.0 / NHPTimer::GetClockRate();
-                row[Sprintf("%09lu", i)] = sliceMs;
-                prev = timeline[i];
-            }
-        }
-
-        // Interlink node and track
-        node->Tracks.emplace_back(&track, resTotal, resLast);
-        track.LastNode = node;
-    }
-
-    bool CheckPattern(const char*& pi, const char* pe, TStringBuf str)
-    {
-        auto si = str.begin(), se = str.end();
-        for (;pi != pe && si != se; ++pi, ++si) {
-            if (*pi != *si) {
-                return false;
-            }
-        }
-        return si == se;
-    }
-
-#define WWW_CHECK_PATTERN(str) if (!CheckPattern(pi, pe, (str))) { return false; }
-
+    { 
+        if (!SelectedNode) { 
+            if (node->GetPath() == SelectedPattern) { 
+                SelectedNode = node; 
+            } 
+        } 
+ 
+        // Counting 
+        node->TrackCount++; 
+ 
+        // Resource total 
+        node->ResTotalSum += resTotal; 
+        node->ResTotalMax = Max(node->ResTotalMax, resTotal); 
+        node->ResTotalAll.push_back(resTotal); 
+ 
+        // Resource last 
+        ui64 resLast = 0; 
+        resLast = resTotal - (timeline.size() < 2? 0: timeline[timeline.size() - 2]); 
+        node->ResLastSum += resLast; 
+        node->ResLastMax = Max(node->ResLastMax, resLast); 
+        node->ResLastAll.push_back(resLast); 
+ 
+        // Timeline 
+        if (node->TimelineSum.size() < timeline.size()) { 
+            node->TimelineSum.resize(timeline.size()); 
+        } 
+        for (size_t i = 0; i < timeline.size(); i++) { 
+            node->TimelineSum[i] += timeline[i]; 
+        } 
+ 
+        if (node == SelectedNode && !timeline.empty()) { 
+            node->Slices.emplace_back(); 
+            NAnalytics::TRow& row = node->Slices.back(); 
+            ui64 prev = 0; 
+            for (size_t i = 0; i < timeline.size(); i++) { 
+                // Note that col names should go in lexicographical order 
+                // in the same way as slices go in pattern timeline 
+                double sliceMs = double(timeline[i] - prev) * 1000.0 / NHPTimer::GetClockRate(); 
+                row[Sprintf("%09lu", i)] = sliceMs; 
+                prev = timeline[i]; 
+            } 
+        } 
+ 
+        // Interlink node and track 
+        node->Tracks.emplace_back(&track, resTotal, resLast); 
+        track.LastNode = node; 
+    } 
+ 
+    bool CheckPattern(const char*& pi, const char* pe, TStringBuf str) 
+    { 
+        auto si = str.begin(), se = str.end(); 
+        for (;pi != pe && si != se; ++pi, ++si) { 
+            if (*pi != *si) { 
+                return false; 
+            } 
+        } 
+        return si == se; 
+    } 
+ 
+#define WWW_CHECK_PATTERN(str) if (!CheckPattern(pi, pe, (str))) { return false; } 
+ 
     bool MatchTrack(const TTrack& track, const TString& patternStr)
-    {
+    { 
         const char* pi = patternStr.data();
         const char* pe = pi + patternStr.size();
-        WWW_CHECK_PATTERN("/");
-        for (TTrackIter i = TTrackTr::begin(track), e = TTrackTr::end(track); i != e; ++i) {
-            if (pi == pe) {
-                return true;
-            }
-            const NLWTrace::TLogItem& item = *i;
-            WWW_CHECK_PATTERN("/");
-            WWW_CHECK_PATTERN(item.Probe->Event.GetProvider());
-            WWW_CHECK_PATTERN(".");
-            WWW_CHECK_PATTERN(item.Probe->Event.Name);
-            while (true) {
-                if (pi == pe) {
-                    return true;
-                }
-                char c = *pi;
-                if (c == '/') {
-                    break;
-                } else if (c == '@') {
-                    pi++;
-                    // Parse rollbacks
-                    TStringBuf p(pi, pe);
-                    size_t dot = p.find('.');
-                    if (dot == TStringBuf::npos) {
-                        return false;
-                    }
-                    size_t rollbacks = 0;
-                    try {
-                        rollbacks = FromString<size_t>(p.substr(0, dot));
-                    } catch (...) {
-                        return false;
-                    }
-
-                    // Parse param name
-                    size_t equals = p.find('=', dot + 1);
-                    if (equals == TStringBuf::npos) {
-                        return false;
-                    }
-                    TStringBuf paramName = p.substr(dot + 1, equals - dot - 1);
-
-                    pi += equals + 1; // Advance to value
-
-                    // Check param value
-                    if ((i64)rollbacks < 0 || std::distance(TTrackTr::begin(track), i) < (i64)rollbacks) {
-                        return false;
-                    }
-                    const NLWTrace::TLogItem& mitem = *(i - rollbacks);
-                    if (mitem.SavedParamsCount == 0) {
-                        return false;
-                    }
+        WWW_CHECK_PATTERN("/"); 
+        for (TTrackIter i = TTrackTr::begin(track), e = TTrackTr::end(track); i != e; ++i) { 
+            if (pi == pe) { 
+                return true; 
+            } 
+            const NLWTrace::TLogItem& item = *i; 
+            WWW_CHECK_PATTERN("/"); 
+            WWW_CHECK_PATTERN(item.Probe->Event.GetProvider()); 
+            WWW_CHECK_PATTERN("."); 
+            WWW_CHECK_PATTERN(item.Probe->Event.Name); 
+            while (true) { 
+                if (pi == pe) { 
+                    return true; 
+                } 
+                char c = *pi; 
+                if (c == '/') { 
+                    break; 
+                } else if (c == '@') { 
+                    pi++; 
+                    // Parse rollbacks 
+                    TStringBuf p(pi, pe); 
+                    size_t dot = p.find('.'); 
+                    if (dot == TStringBuf::npos) { 
+                        return false; 
+                    } 
+                    size_t rollbacks = 0; 
+                    try { 
+                        rollbacks = FromString<size_t>(p.substr(0, dot)); 
+                    } catch (...) { 
+                        return false; 
+                    } 
+ 
+                    // Parse param name 
+                    size_t equals = p.find('=', dot + 1); 
+                    if (equals == TStringBuf::npos) { 
+                        return false; 
+                    } 
+                    TStringBuf paramName = p.substr(dot + 1, equals - dot - 1); 
+ 
+                    pi += equals + 1; // Advance to value 
+ 
+                    // Check param value 
+                    if ((i64)rollbacks < 0 || std::distance(TTrackTr::begin(track), i) < (i64)rollbacks) { 
+                        return false; 
+                    } 
+                    const NLWTrace::TLogItem& mitem = *(i - rollbacks); 
+                    if (mitem.SavedParamsCount == 0) { 
+                        return false; 
+                    } 
                     TString paramValues[LWTRACE_MAX_PARAMS];
                     TString* paramValue = nullptr;
-                    mitem.Probe->Event.Signature.SerializeParams(mitem.Params, paramValues);
-                    for (size_t pi = 0; pi < mitem.SavedParamsCount; pi++) {
-                        if (mitem.Probe->Event.Signature.ParamNames[pi] == paramName) {
-                            paramValue = &paramValues[pi];
-                        }
-                    }
-                    if (!paramValue) {
-                        return false;
-                    }
-                    WWW_CHECK_PATTERN(*paramValue);
-                } else {
-                    return false;
-                }
-            }
-        }
-        return true;
-    }
-
-#undef WWW_CHECK_PATTERN
-
-    // Push new track through pattern tree
-    void AddTrack(TTrack& track)
-    {
-        // Truncate long tracks
-        if (track.Items.size() > 50) {
-            track.Items.resize(50);
-        }
-
-        if (SelectedPattern) {
-            if (!MatchTrack(track, SelectedPattern)) {
-                return;
-            }
-        }
-
-        Timeline.clear();
-        TPatternNode* node = &Root;
-        AddTrackToNode(node, track, 0, Timeline);
-        ui64 trackStart = TTrackTr::front(track).TimestampCycles;
-        for (TTrackIter i = TTrackTr::begin(track), e = TTrackTr::end(track); i != e;) {
-            // Get or create child by classification
-            TPatternNode* parent = node;
-            node = node->Classifier->Classify(i, track);
-            if (!node->Classifier) {
-                InitNode(node, parent);
-            }
-
-            const NLWTrace::TLogItem& item = *i;
-            ui64 resTotal = item.TimestampCycles - trackStart;
-            if (i != TTrackTr::begin(track)) {
-                Timeline.push_back(resTotal);
-            }
-            AddTrackToNode(node, track, resTotal, Timeline);
-
-            // Move through track
-            if (!node->Classifier->KeepHead) {
-                ++i;
-            }
-        }
-    }
-
-    // Traverse pattern tree (the only way to extract data from it)
-    template <class TOnNode, class TOnDescend, class TOnAscend>
-    void Traverse(TOnNode&& onNode, TOnDescend&& onDescend, TOnAscend&& onAscend)
-    {
-        struct TVisitor : public IVisitor {
-            TOnNode OnNode;
-            TOnDescend OnDescend;
-            TOnAscend OnAscend;
-            TVisitor(TOnNode&& onNode, TOnDescend&& onDescend, TOnAscend&& onAscend)
-                : OnNode(onNode)
-                , OnDescend(onDescend)
-                , OnAscend(onAscend)
-            {}
-            virtual void Visit(TPatternNode* node) override
-            {
-                OnNode(node);
-                if (!node->Classifier->IsLeaf()) {
-                    OnDescend();
-                    node->Classifier->Accept(this);
-                    OnAscend();
-                }
-            }
-        };
-        TVisitor visitor(std::move(onNode), std::move(onDescend), std::move(onAscend));
-        visitor.Visit(&Root);
-    }
-
-    TPatternNode* GetRoot()
-    {
-        return &Root;
-    }
-
-private:
-    void InitNode(TPatternNode* node, TPatternNode* parent)
-    {
-        node->Parent = parent;
-        auto iter = ParamClassifiers.find(node->GetPath());
-        if (iter != ParamClassifiers.end()) {
-            node->Classifier.Reset(new TClassifyByParam(node, iter->second.first, iter->second.second));
-        } else {
-            node->Classifier.Reset(new TClassifyByProbe(node));
-        }
-    }
-};
-
-class TLogTrackExtractor: public TLogFilter {
-private:
-    // Data storage
+                    mitem.Probe->Event.Signature.SerializeParams(mitem.Params, paramValues); 
+                    for (size_t pi = 0; pi < mitem.SavedParamsCount; pi++) { 
+                        if (mitem.Probe->Event.Signature.ParamNames[pi] == paramName) { 
+                            paramValue = &paramValues[pi]; 
+                        } 
+                    } 
+                    if (!paramValue) { 
+                        return false; 
+                    } 
+                    WWW_CHECK_PATTERN(*paramValue); 
+                } else { 
+                    return false; 
+                } 
+            } 
+        } 
+        return true; 
+    } 
+ 
+#undef WWW_CHECK_PATTERN 
+ 
+    // Push new track through pattern tree 
+    void AddTrack(TTrack& track) 
+    { 
+        // Truncate long tracks 
+        if (track.Items.size() > 50) { 
+            track.Items.resize(50); 
+        } 
+ 
+        if (SelectedPattern) { 
+            if (!MatchTrack(track, SelectedPattern)) { 
+                return; 
+            } 
+        } 
+ 
+        Timeline.clear(); 
+        TPatternNode* node = &Root; 
+        AddTrackToNode(node, track, 0, Timeline); 
+        ui64 trackStart = TTrackTr::front(track).TimestampCycles; 
+        for (TTrackIter i = TTrackTr::begin(track), e = TTrackTr::end(track); i != e;) { 
+            // Get or create child by classification 
+            TPatternNode* parent = node; 
+            node = node->Classifier->Classify(i, track); 
+            if (!node->Classifier) { 
+                InitNode(node, parent); 
+            } 
+ 
+            const NLWTrace::TLogItem& item = *i; 
+            ui64 resTotal = item.TimestampCycles - trackStart; 
+            if (i != TTrackTr::begin(track)) { 
+                Timeline.push_back(resTotal); 
+            } 
+            AddTrackToNode(node, track, resTotal, Timeline); 
+ 
+            // Move through track 
+            if (!node->Classifier->KeepHead) { 
+                ++i; 
+            } 
+        } 
+    } 
+ 
+    // Traverse pattern tree (the only way to extract data from it) 
+    template <class TOnNode, class TOnDescend, class TOnAscend> 
+    void Traverse(TOnNode&& onNode, TOnDescend&& onDescend, TOnAscend&& onAscend) 
+    { 
+        struct TVisitor : public IVisitor { 
+            TOnNode OnNode; 
+            TOnDescend OnDescend; 
+            TOnAscend OnAscend; 
+            TVisitor(TOnNode&& onNode, TOnDescend&& onDescend, TOnAscend&& onAscend) 
+                : OnNode(onNode) 
+                , OnDescend(onDescend) 
+                , OnAscend(onAscend) 
+            {} 
+            virtual void Visit(TPatternNode* node) override 
+            { 
+                OnNode(node); 
+                if (!node->Classifier->IsLeaf()) { 
+                    OnDescend(); 
+                    node->Classifier->Accept(this); 
+                    OnAscend(); 
+                } 
+            } 
+        }; 
+        TVisitor visitor(std::move(onNode), std::move(onDescend), std::move(onAscend)); 
+        visitor.Visit(&Root); 
+    } 
+ 
+    TPatternNode* GetRoot() 
+    { 
+        return &Root; 
+    } 
+ 
+private: 
+    void InitNode(TPatternNode* node, TPatternNode* parent) 
+    { 
+        node->Parent = parent; 
+        auto iter = ParamClassifiers.find(node->GetPath()); 
+        if (iter != ParamClassifiers.end()) { 
+            node->Classifier.Reset(new TClassifyByParam(node, iter->second.first, iter->second.second)); 
+        } else { 
+            node->Classifier.Reset(new TClassifyByProbe(node)); 
+        } 
+    } 
+}; 
+ 
+class TLogTrackExtractor: public TLogFilter { 
+private: 
+    // Data storage 
     TMultiMap<ui64, std::pair<TThread::TId, NLWTrace::TLogItem>> Items;
     TVector<NLWTrace::TTrackLog> Depot;
-
-    // Data refs organized in tracks
+ 
+    // Data refs organized in tracks 
     THashMap<TString, TTrack> Tracks;
     TVector<TTrack> TracksFromDepot;
-
-    // Analysis
+ 
+    // Analysis 
     TVector<TString> GroupBy;
     THashSet<TString> TrackIds; // The same content as in GroupBy
-    TTimestampCutter CutTs;
-    TPatternTree Tree;
-public:
+    TTimestampCutter CutTs; 
+    TPatternTree Tree; 
+public: 
     TLogTrackExtractor(const TCgiParameters& e, const TVector<TString>& filters, const TVector<TString>& groupBy)
-        : TLogFilter(filters)
-        , CutTs(true) // Always cut input data for tracks
-        , Tree(e)
-    {
+        : TLogFilter(filters) 
+        , CutTs(true) // Always cut input data for tracks 
+        , Tree(e) 
+    { 
         for (const TString& groupParam : groupBy) {
-            GroupBy.push_back(groupParam);
-            TrackIds.insert(groupParam);
-        }
-    }
-
-    // For reading lwtrace log (input point for all data)
-    void Push(TThread::TId tid, const NLWTrace::TLogItem& item)
-    {
-        CutTs.Push(tid, item);
-        if (Filter(item)) {
-            Items.emplace(item.TimestampCycles, std::make_pair(tid, item));
-        }
-    }
-
-    // For reading lwtrace depot (input point for all data)
-    void Push(TThread::TId, const NLWTrace::TTrackLog& tl)
-    {
-        if (Filter(tl)) {
-            Depot.emplace_back(tl);
-        }
-    }
-
-    // Analyze logs that have been read
-    void Run()
-    {
-        RunImplLog();
-        RunImplDepot();
-    }
-
-    void RunImplLog()
-    {
-        // Create tracks by filling them with lwtrace items in order of occurance time
-        for (auto& kv : Items) {
-            AddItemToTrack(kv.second.first, kv.second.second);
-        }
-        // Push tracks throught pattern tree
-        for (auto& kv : Tracks) {
-            TTrack& track = kv.second;
-            track.TrackId = kv.first;
-            Tree.AddTrack(track);
-        }
-    }
-
-    void RunImplDepot()
-    {
-        // Create tracks from depot
-        // OPTIMIZE[serxa]: this convertion is not necessary, done just to keep things simple
-        for (NLWTrace::TTrackLog& tl : Depot) {
-            TTrack& track = TracksFromDepot.emplace_back();
-            track.TrackId = ToString(tl.Id);
-            for (const NLWTrace::TTrackLog::TItem& i : tl.Items) {
-                track.Items.emplace_back(i.ThreadId, i);
-            }
-        }
-        for (TTrack& t : TracksFromDepot) {
-            Tree.AddTrack(t);
-        }
-    }
-
-    // Selected node distribution
-    NAnalytics::TTable Distribution(const TString& bn, const TString& b1Str, const TString& b2Str, const TString& widthStr)
-    {
-        using namespace NAnalytics;
-
-        const NAnalytics::TTable& inputTable = Tree.GetSelectedTable();
-        double b1 = b1Str? FromString<double>(b1Str): MinValue(bn, inputTable);
-        double b2 = b2Str? FromString<double>(b2Str): MaxValue(bn, inputTable);
-        if (isfinite(b1) && isfinite(b2)) {
-            WWW_CHECK(b1 <= b2, "invalid xrange [%le; %le]", b1, b2);
-            double width = widthStr? FromString<double>(widthStr): 99;
-            double dx = (b2 - b1) / width;
-            if (!(dx > 0)) {
-                dx = 1.0;
-            }
-            return HistogramAll(inputTable, bn, b1, b2, dx);
-        } else {
-            // Empty table -- it's ok -- leave data table empty
-            return NAnalytics::TTable();
-        }
-    }
-
-    // Selected sample
+            GroupBy.push_back(groupParam); 
+            TrackIds.insert(groupParam); 
+        } 
+    } 
+ 
+    // For reading lwtrace log (input point for all data) 
+    void Push(TThread::TId tid, const NLWTrace::TLogItem& item) 
+    { 
+        CutTs.Push(tid, item); 
+        if (Filter(item)) { 
+            Items.emplace(item.TimestampCycles, std::make_pair(tid, item)); 
+        } 
+    } 
+ 
+    // For reading lwtrace depot (input point for all data) 
+    void Push(TThread::TId, const NLWTrace::TTrackLog& tl) 
+    { 
+        if (Filter(tl)) { 
+            Depot.emplace_back(tl); 
+        } 
+    } 
+ 
+    // Analyze logs that have been read 
+    void Run() 
+    { 
+        RunImplLog(); 
+        RunImplDepot(); 
+    } 
+ 
+    void RunImplLog() 
+    { 
+        // Create tracks by filling them with lwtrace items in order of occurance time 
+        for (auto& kv : Items) { 
+            AddItemToTrack(kv.second.first, kv.second.second); 
+        } 
+        // Push tracks throught pattern tree 
+        for (auto& kv : Tracks) { 
+            TTrack& track = kv.second; 
+            track.TrackId = kv.first; 
+            Tree.AddTrack(track); 
+        } 
+    } 
+ 
+    void RunImplDepot() 
+    { 
+        // Create tracks from depot 
+        // OPTIMIZE[serxa]: this convertion is not necessary, done just to keep things simple 
+        for (NLWTrace::TTrackLog& tl : Depot) { 
+            TTrack& track = TracksFromDepot.emplace_back(); 
+            track.TrackId = ToString(tl.Id); 
+            for (const NLWTrace::TTrackLog::TItem& i : tl.Items) { 
+                track.Items.emplace_back(i.ThreadId, i); 
+            } 
+        } 
+        for (TTrack& t : TracksFromDepot) { 
+            Tree.AddTrack(t); 
+        } 
+    } 
+ 
+    // Selected node distribution 
+    NAnalytics::TTable Distribution(const TString& bn, const TString& b1Str, const TString& b2Str, const TString& widthStr) 
+    { 
+        using namespace NAnalytics; 
+ 
+        const NAnalytics::TTable& inputTable = Tree.GetSelectedTable(); 
+        double b1 = b1Str? FromString<double>(b1Str): MinValue(bn, inputTable); 
+        double b2 = b2Str? FromString<double>(b2Str): MaxValue(bn, inputTable); 
+        if (isfinite(b1) && isfinite(b2)) { 
+            WWW_CHECK(b1 <= b2, "invalid xrange [%le; %le]", b1, b2); 
+            double width = widthStr? FromString<double>(widthStr): 99; 
+            double dx = (b2 - b1) / width; 
+            if (!(dx > 0)) { 
+                dx = 1.0; 
+            } 
+            return HistogramAll(inputTable, bn, b1, b2, dx); 
+        } else { 
+            // Empty table -- it's ok -- leave data table empty 
+            return NAnalytics::TTable(); 
+        } 
+    } 
+ 
+    // Selected sample 
     template <typename TReader>
     void OutputSample(const TString& bn, double b1, double b2, const TSampleOpts& opts, TReader& reader)
-    {
+    { 
         Tree.OutputSelectedSample(bn, b1, b2, opts, reader);
-    }
-
-    // Tabular representation of tracks data
+    } 
+ 
+    // Tabular representation of tracks data 
     void OutputTable(IOutputStream& os, const TCgiParameters& e)
-    {
-        ui64 tracksTotal = Tree.GetRoot()->TrackCount;
-
-        double maxAvgResTotal = 0;
-        double maxMaxResTotal = 0;
-        Tree.Traverse([&] (TPatternNode* node) {
-            if (node->TrackCount > 0) {
-                maxAvgResTotal = Max(maxAvgResTotal, double(node->ResTotalSum) / node->TrackCount);
-                maxMaxResTotal = Max(maxMaxResTotal, double(node->ResTotalMax));
-                Sort(node->ResTotalAll);
-                Sort(node->ResLastAll);
-            }
-        }, [&] () { // On descend
-        }, [&] () { // On ascend
-        });
-        double maxTime = Min(maxMaxResTotal, 1.25 * maxAvgResTotal);
-
-        double percentile = e.Get("ile")? FromString<double>(e.Get("ile")): 90;
-        WWW_CHECK(percentile >= 0.0 && percentile <= 100.0, "wrong percentile: %lf", percentile);
-
-        ui64 row = 0;
+    { 
+        ui64 tracksTotal = Tree.GetRoot()->TrackCount; 
+ 
+        double maxAvgResTotal = 0; 
+        double maxMaxResTotal = 0; 
+        Tree.Traverse([&] (TPatternNode* node) { 
+            if (node->TrackCount > 0) { 
+                maxAvgResTotal = Max(maxAvgResTotal, double(node->ResTotalSum) / node->TrackCount); 
+                maxMaxResTotal = Max(maxMaxResTotal, double(node->ResTotalMax)); 
+                Sort(node->ResTotalAll); 
+                Sort(node->ResLastAll); 
+            } 
+        }, [&] () { // On descend 
+        }, [&] () { // On ascend 
+        }); 
+        double maxTime = Min(maxMaxResTotal, 1.25 * maxAvgResTotal); 
+ 
+        double percentile = e.Get("ile")? FromString<double>(e.Get("ile")): 90; 
+        WWW_CHECK(percentile >= 0.0 && percentile <= 100.0, "wrong percentile: %lf", percentile); 
+ 
+        ui64 row = 0; 
         TVector<ui64> chain;
-        HTML(os) {
-            TABLE_CLASS("tracks-tree") {
-                TABLEHEAD() {
-                    os << "<tr>";
-                    os << "<td rowspan=\"2\" style=\"vertical-align:bottom\" align=\"center\">#</td>";
-                    os << "<td rowspan=\"2\" style=\"vertical-align:bottom\" align=\"center\">Pattern</td>";
-                    os << "<td rowspan=\"2\" style=\"vertical-align:bottom\" align=\"center\">";
-                    DIV_CLASS("rotate") { os << "Track Count"; }
-                    os << "</td>";
-                    os << "<td colspan=\"2\" style=\"vertical-align:bottom\" align=\"center\">Share</td>";
-                    os << "<td colspan=\"2\" style=\"vertical-align:bottom\" align=\"center\">Total, ms</td>";
-                    os << "<td colspan=\"2\" style=\"vertical-align:bottom\" align=\"center\">Last, ms</td>";
-                    os << "<td rowspan=\"2\" style=\"vertical-align:bottom\" class=\"timelinehead\" align=\"center\">Global Timeline</td>";
-                    os << "</tr><tr>";
-                    TABLEH() DIV_CLASS("rotate") { os << "Absolute"; }
-                    TABLEH() DIV_CLASS("rotate") { os << "Relative"; }
-                    TABLEH() DIV_CLASS("rotate") { os << "Average"; }
-                    TABLEH() DIV_CLASS("rotate") { os << percentile << "%-ile"; }
-                    TABLEH() DIV_CLASS("rotate") { os << "Average"; }
-                    TABLEH() DIV_CLASS("rotate") { os << percentile << "%-ile"; }
-                    os << "</tr>";
-                }
-                TABLEBODY() {
-                    if (tracksTotal == 0) {
-                        return;
-                    }
-                    Tree.Traverse([&] (TPatternNode* node) {
+        HTML(os) { 
+            TABLE_CLASS("tracks-tree") { 
+                TABLEHEAD() { 
+                    os << "<tr>"; 
+                    os << "<td rowspan=\"2\" style=\"vertical-align:bottom\" align=\"center\">#</td>"; 
+                    os << "<td rowspan=\"2\" style=\"vertical-align:bottom\" align=\"center\">Pattern</td>"; 
+                    os << "<td rowspan=\"2\" style=\"vertical-align:bottom\" align=\"center\">"; 
+                    DIV_CLASS("rotate") { os << "Track Count"; } 
+                    os << "</td>"; 
+                    os << "<td colspan=\"2\" style=\"vertical-align:bottom\" align=\"center\">Share</td>"; 
+                    os << "<td colspan=\"2\" style=\"vertical-align:bottom\" align=\"center\">Total, ms</td>"; 
+                    os << "<td colspan=\"2\" style=\"vertical-align:bottom\" align=\"center\">Last, ms</td>"; 
+                    os << "<td rowspan=\"2\" style=\"vertical-align:bottom\" class=\"timelinehead\" align=\"center\">Global Timeline</td>"; 
+                    os << "</tr><tr>"; 
+                    TABLEH() DIV_CLASS("rotate") { os << "Absolute"; } 
+                    TABLEH() DIV_CLASS("rotate") { os << "Relative"; } 
+                    TABLEH() DIV_CLASS("rotate") { os << "Average"; } 
+                    TABLEH() DIV_CLASS("rotate") { os << percentile << "%-ile"; } 
+                    TABLEH() DIV_CLASS("rotate") { os << "Average"; } 
+                    TABLEH() DIV_CLASS("rotate") { os << percentile << "%-ile"; } 
+                    os << "</tr>"; 
+                } 
+                TABLEBODY() { 
+                    if (tracksTotal == 0) { 
+                        return; 
+                    } 
+                    Tree.Traverse([&] (TPatternNode* node) { 
                         TString parentClass;
-                        if (!chain.empty()) {
-                            parentClass = " treegrid-parent-" + ToString(chain.back());
-                        }
+                        if (!chain.empty()) { 
+                            parentClass = " treegrid-parent-" + ToString(chain.back()); 
+                        } 
                         TString selectedClass;
-                        if (e.Get("pattern") == node->GetPath()) {
-                            selectedClass = " danger";
-                        }
-                        TABLER_CLASS("treegrid-" + ToString(++row) + parentClass + selectedClass) {
-                            // Counting
-                            ui64 tracksParent = node->Parent? node->Parent->TrackCount: tracksTotal;
-                            double absShare = double(node->TrackCount) * 100 / tracksTotal;
-                            double relShare = double(node->TrackCount) * 100 / tracksParent;
-
-                            // Resource total
-                            double avgResTotal = double(node->ResTotalSum) / node->TrackCount;
-                            size_t ileResTotalIdx = node->ResTotalAll.size() * percentile / 100;
-                            if (ileResTotalIdx > 0) {
-                                ileResTotalIdx--;
-                            }
-                            double ileResTotal = double(ileResTotalIdx >= node->ResTotalAll.size()? 0: node->ResTotalAll[ileResTotalIdx]);
-                            double avgResTotalMs = avgResTotal * 1000.0 / NHPTimer::GetClockRate();
-                            double ileResTotalMs = ileResTotal * 1000.0 / NHPTimer::GetClockRate();
-
-                            // Resource last
-                            double avgResLast = double(node->ResLastSum) / node->TrackCount;
-                            size_t ileResLastIdx = node->ResLastAll.size() * percentile / 100;
-                            if (ileResLastIdx > 0) {
-                                ileResLastIdx--;
-                            }
-                            double ileResLast = double(ileResLastIdx >= node->ResLastAll.size()? 0: node->ResLastAll[ileResLastIdx]);
-                            double avgResLastMs = avgResLast * 1000.0 / NHPTimer::GetClockRate();
-                            double ileResLastMs = ileResLast * 1000.0 / NHPTimer::GetClockRate();
-
-                            // Output
-                            TABLED() { os << row; }
-                            TABLED_CLASS("treegrid-element") { OutputPattern(os, e, node); }
-                            TABLED() { os << node->TrackCount; }
-                            TABLED() { OutputShare(os, absShare); }
-                            TABLED() { OutputShare(os, relShare); }
-                            TABLED() { os << FormatFloat(avgResTotalMs); }
-                            TABLED() { os << FormatFloat(ileResTotalMs); }
-                            TABLED() { os << FormatFloat(avgResLastMs); }
-                            TABLED() { os << FormatFloat(ileResLastMs); }
-                            TABLED() { OutputTimeline(os, MakeTimeline(node), maxTime); }
-                        }
-                    }, [&] () { // On descend
-                        chain.push_back(row);
-                    }, [&] () { // On ascend
-                        chain.pop_back();
-                    });
-                }
-            }
-        }
-    }
-
-    // Chromium-compatible trace representation of tracks data
+                        if (e.Get("pattern") == node->GetPath()) { 
+                            selectedClass = " danger"; 
+                        } 
+                        TABLER_CLASS("treegrid-" + ToString(++row) + parentClass + selectedClass) { 
+                            // Counting 
+                            ui64 tracksParent = node->Parent? node->Parent->TrackCount: tracksTotal; 
+                            double absShare = double(node->TrackCount) * 100 / tracksTotal; 
+                            double relShare = double(node->TrackCount) * 100 / tracksParent; 
+ 
+                            // Resource total 
+                            double avgResTotal = double(node->ResTotalSum) / node->TrackCount; 
+                            size_t ileResTotalIdx = node->ResTotalAll.size() * percentile / 100; 
+                            if (ileResTotalIdx > 0) { 
+                                ileResTotalIdx--; 
+                            } 
+                            double ileResTotal = double(ileResTotalIdx >= node->ResTotalAll.size()? 0: node->ResTotalAll[ileResTotalIdx]); 
+                            double avgResTotalMs = avgResTotal * 1000.0 / NHPTimer::GetClockRate(); 
+                            double ileResTotalMs = ileResTotal * 1000.0 / NHPTimer::GetClockRate(); 
+ 
+                            // Resource last 
+                            double avgResLast = double(node->ResLastSum) / node->TrackCount; 
+                            size_t ileResLastIdx = node->ResLastAll.size() * percentile / 100; 
+                            if (ileResLastIdx > 0) { 
+                                ileResLastIdx--; 
+                            } 
+                            double ileResLast = double(ileResLastIdx >= node->ResLastAll.size()? 0: node->ResLastAll[ileResLastIdx]); 
+                            double avgResLastMs = avgResLast * 1000.0 / NHPTimer::GetClockRate(); 
+                            double ileResLastMs = ileResLast * 1000.0 / NHPTimer::GetClockRate(); 
+ 
+                            // Output 
+                            TABLED() { os << row; } 
+                            TABLED_CLASS("treegrid-element") { OutputPattern(os, e, node); } 
+                            TABLED() { os << node->TrackCount; } 
+                            TABLED() { OutputShare(os, absShare); } 
+                            TABLED() { OutputShare(os, relShare); } 
+                            TABLED() { os << FormatFloat(avgResTotalMs); } 
+                            TABLED() { os << FormatFloat(ileResTotalMs); } 
+                            TABLED() { os << FormatFloat(avgResLastMs); } 
+                            TABLED() { os << FormatFloat(ileResLastMs); } 
+                            TABLED() { OutputTimeline(os, MakeTimeline(node), maxTime); } 
+                        } 
+                    }, [&] () { // On descend 
+                        chain.push_back(row); 
+                    }, [&] () { // On ascend 
+                        chain.pop_back(); 
+                    }); 
+                } 
+            } 
+        } 
+    } 
+ 
+    // Chromium-compatible trace representation of tracks data 
     void OutputChromeTrace(IOutputStream& os, const TCgiParameters& e)
-    {
-        Y_UNUSED(e);
-        TChromeTrace tr;
-        for (TPatternNode::TTrackEntry& entry: Tree.GetRoot()->Tracks) {
-            TTrack* track = entry.Track;
-            auto first = TTrackTr::begin(*track);
-            auto last = TTrackTr::rbegin(*track);
-
+    { 
+        Y_UNUSED(e); 
+        TChromeTrace tr; 
+        for (TPatternNode::TTrackEntry& entry: Tree.GetRoot()->Tracks) { 
+            TTrack* track = entry.Track; 
+            auto first = TTrackTr::begin(*track); 
+            auto last = TTrackTr::rbegin(*track); 
+ 
             TString name = track->LastNode->GetPath();
-
-            const NLWTrace::TLogItem& firstItem = *first;
-            TThread::TId firstTid = first->ThreadId;
-            tr.Add(firstTid, firstItem.TimestampCycles, "b", "track", nullptr, name, track->TrackId);
-
-            for (auto cur = TTrackTr::begin(*track), end = TTrackTr::end(*track); cur != end; ++cur) {
-                const NLWTrace::TLogItem& item = *cur;
-
-                tr.Add(cur->ThreadId, item.TimestampCycles, "i", "event", &item, GetProbeName(item.Probe));
-
+ 
+            const NLWTrace::TLogItem& firstItem = *first; 
+            TThread::TId firstTid = first->ThreadId; 
+            tr.Add(firstTid, firstItem.TimestampCycles, "b", "track", nullptr, name, track->TrackId); 
+ 
+            for (auto cur = TTrackTr::begin(*track), end = TTrackTr::end(*track); cur != end; ++cur) { 
+                const NLWTrace::TLogItem& item = *cur; 
+ 
+                tr.Add(cur->ThreadId, item.TimestampCycles, "i", "event", &item, GetProbeName(item.Probe)); 
+ 
                 TString sliceName = GetProbeName(item.Probe);
-
-                auto next = cur + 1;
-                if (next != end) {
-                    const NLWTrace::TLogItem& nextItem = *next;
-                    tr.Add(cur->ThreadId, item.TimestampCycles, "b", "track", &item, sliceName, track->TrackId);
-                    tr.Add(next->ThreadId, nextItem.TimestampCycles, "e", "track", &nextItem, sliceName, track->TrackId);
-                } else {
-                    tr.Add(cur->ThreadId, item.TimestampCycles, "n", "track", &item, sliceName, track->TrackId);
-                }
-            }
-
-            const NLWTrace::TLogItem& lastItem = *last;
-            tr.Add(last->ThreadId, lastItem.TimestampCycles, "e", "track", nullptr, name, track->TrackId);
-        }
-        tr.Output(os);
-    }
-
+ 
+                auto next = cur + 1; 
+                if (next != end) { 
+                    const NLWTrace::TLogItem& nextItem = *next; 
+                    tr.Add(cur->ThreadId, item.TimestampCycles, "b", "track", &item, sliceName, track->TrackId); 
+                    tr.Add(next->ThreadId, nextItem.TimestampCycles, "e", "track", &nextItem, sliceName, track->TrackId); 
+                } else { 
+                    tr.Add(cur->ThreadId, item.TimestampCycles, "n", "track", &item, sliceName, track->TrackId); 
+                } 
+            } 
+ 
+            const NLWTrace::TLogItem& lastItem = *last; 
+            tr.Add(last->ThreadId, lastItem.TimestampCycles, "e", "track", nullptr, name, track->TrackId); 
+        } 
+        tr.Output(os); 
+    } 
+ 
     void OutputSliceCovarianceMatrix(IOutputStream& os, const TCgiParameters& e)
-    {
-        Y_UNUSED(e);
-        TPatternNode* node = Tree.GetSelectedNode();
-        if (!node) {
-            return;
-        }
-
-        NAnalytics::TMatrix covMatrix = NAnalytics::CovarianceMatrix(node->Slices);
-        double var = covMatrix.CellSum();
-
-        double covMax = 0.0;
-        for (double x : covMatrix) {
-            if (covMax < x) {
-                covMax = x;
-            }
-        }
-        double dangerCov = covMax * 0.9 * 0.9;
-        double warnCov = covMax * 0.5 * 0.5;
-
-        HTML(os) {
-            TABLE() {
-                TTimeline timeline = MakeTimeline(node);
-                TABLEHEAD() TABLER() {
-                    TABLED();
-                    for (auto& e : timeline) TABLED() {
-                        TPatternNode* subnode = e.first;
-                        os << subnode->Name;
-                    }
-                }
-
-                auto tl = timeline.begin();
-                TABLEBODY() for (size_t row = 0; row < covMatrix.Rows; row++) TABLER() {
-                    TABLEH() {
-                        if (tl != timeline.end()) {
-                            TPatternNode* subnode = tl->first;
-                            os << subnode->Name;
-                            ++tl;
-                        }
-                    }
-
-                    for (size_t col = 0; col < covMatrix.Cols; col++) {
-                        double cov = covMatrix.Cell(row, col);
-                        TString tdClass = (cov >= dangerCov? "danger": (cov >= warnCov? "warning": ""));
-                        TABLED_CLASS(tdClass) {
-                            double sigmaX = (covMatrix.Cell(row, row) > 0? sqrt(covMatrix.Cell(row, row)): 0);
-                            double sigmaY = (covMatrix.Cell(col, col) > 0? sqrt(covMatrix.Cell(col, col)): 0);
-                            os << Sprintf("cov=%.3lf&nbsp;ms<sup>2</sup>&nbsp;(%.3lf&nbsp;ms) corr=%.1lf%% var_share=%.1lf%%",
-                                          cov, sqrt(abs(cov)), cov * 100.0 / sigmaX / sigmaY, cov * 100.0 / var);
-                        }
-                    }
-                }
-            }
-        }
-    }
-
-private:
-    TPatternNode* RollbackFind(TPatternNode* node)
-    {
-        for (;node != nullptr; node = node->Parent) {
-            if (node->Desc.Type == NT_PROBE) {
-                return node;
-            }
-        }
-        return nullptr;
-    }
-
+    { 
+        Y_UNUSED(e); 
+        TPatternNode* node = Tree.GetSelectedNode(); 
+        if (!node) { 
+            return; 
+        } 
+ 
+        NAnalytics::TMatrix covMatrix = NAnalytics::CovarianceMatrix(node->Slices); 
+        double var = covMatrix.CellSum(); 
+ 
+        double covMax = 0.0; 
+        for (double x : covMatrix) { 
+            if (covMax < x) { 
+                covMax = x; 
+            } 
+        } 
+        double dangerCov = covMax * 0.9 * 0.9; 
+        double warnCov = covMax * 0.5 * 0.5; 
+ 
+        HTML(os) { 
+            TABLE() { 
+                TTimeline timeline = MakeTimeline(node); 
+                TABLEHEAD() TABLER() { 
+                    TABLED(); 
+                    for (auto& e : timeline) TABLED() { 
+                        TPatternNode* subnode = e.first; 
+                        os << subnode->Name; 
+                    } 
+                } 
+ 
+                auto tl = timeline.begin(); 
+                TABLEBODY() for (size_t row = 0; row < covMatrix.Rows; row++) TABLER() { 
+                    TABLEH() { 
+                        if (tl != timeline.end()) { 
+                            TPatternNode* subnode = tl->first; 
+                            os << subnode->Name; 
+                            ++tl; 
+                        } 
+                    } 
+ 
+                    for (size_t col = 0; col < covMatrix.Cols; col++) { 
+                        double cov = covMatrix.Cell(row, col); 
+                        TString tdClass = (cov >= dangerCov? "danger": (cov >= warnCov? "warning": "")); 
+                        TABLED_CLASS(tdClass) { 
+                            double sigmaX = (covMatrix.Cell(row, row) > 0? sqrt(covMatrix.Cell(row, row)): 0); 
+                            double sigmaY = (covMatrix.Cell(col, col) > 0? sqrt(covMatrix.Cell(col, col)): 0); 
+                            os << Sprintf("cov=%.3lf&nbsp;ms<sup>2</sup>&nbsp;(%.3lf&nbsp;ms) corr=%.1lf%% var_share=%.1lf%%", 
+                                          cov, sqrt(abs(cov)), cov * 100.0 / sigmaX / sigmaY, cov * 100.0 / var); 
+                        } 
+                    } 
+                } 
+            } 
+        } 
+    } 
+ 
+private: 
+    TPatternNode* RollbackFind(TPatternNode* node) 
+    { 
+        for (;node != nullptr; node = node->Parent) { 
+            if (node->Desc.Type == NT_PROBE) { 
+                return node; 
+            } 
+        } 
+        return nullptr; 
+    } 
+ 
     void OutputPattern(IOutputStream& os, const TCgiParameters& e, TPatternNode* node)
-    {
-        // Fill pattern name
+    { 
+        // Fill pattern name 
         TString patternName;
         TString patternTitle;
-        switch (node->Desc.Type) {
-        case NT_ROOT:
-            patternName = "All Tracks";
-            break;
-        case NT_PROBE:
-            patternTitle = GetProbeName(node->Desc.Probe);
-            patternName = node->Desc.Probe->Event.Name;
-            break;
-        case NT_PARAM:
-            patternName.append(node->Desc.ParamName + " = " + node->Desc.ParamValue);
-            break;
-        }
-
-        os << "<a href=\"" << MakeUrl(e, {
-                {"pattern", node->GetPath()},
-                {"ptrn_anlz", e.Get("ptrn_anlz") ? e.Get("ptrn_anlz") : "resTotal"},
-                {"linesfill", "y"},
-                {"linessteps", "y"},
-                {"pointsshow", "n"},
-                {"sel_x1", e.Get("sel_x1") ? e.Get("sel_x1") : "0"},
-                {"sel_x2", e.Get("sel_x2") ? e.Get("sel_x2") : "inf"}}) << "\""
-              " title=\"" + patternTitle + "\">" << patternName << "</a>";
-
-        // Add/remove node menu
-        if (node->Desc.Type != NT_ROOT) {
-            os << "<div class=\"dropdown pull-right\" style=\"display:inline-block\">";
-            if (node->Desc.Type == NT_PARAM) {
-                os<< "<button class=\"btn btn-xs btn-default\" type=\"button\""
-                  << "\" onClick=\"window.location.href='"
-                  << MakeUrlEraseSub(e, "classify", node->Parent->GetPath() + "@"
-                                     + ToString(node->Desc.Rollbacks) + "." + node->Desc.ParamName)
-                  << "';\">"
-                       "<span class=\"glyphicon glyphicon-minus\"></span>"
-                     "</button>";
-            }
-            if (node->Classifier->GetChildType() != NT_PARAM) {
-                os <<    "<button class=\"btn btn-xs btn-default dropdown-toggle\" type=\"button\""
-                                " data-toggle=\"dropdown\" aria-haspopup=\"true\" aria-expanded=\"true\">"
-                           "<span class=\"glyphicon glyphicon-plus\"></span>"
-                         "</button>"
-                         "<ul class=\"dropdown-menu\">"
-                           "<li class=\"dropdown-header\">Classify by param:</li>";
-                int rollbacks = 0;
-                TPatternNode* probeNode = node;
-                while (probeNode = RollbackFind(probeNode)) {
-                    const NLWTrace::TProbe* probe = probeNode->Desc.Probe;
-                    os << "<li class=\"dropdown-header\">" << GetProbeName(probe) << "</li>";
-                    const NLWTrace::TSignature* sgn = &probe->Event.Signature;
-                    for (size_t pi = 0; pi < sgn->ParamCount; pi++) {
+        switch (node->Desc.Type) { 
+        case NT_ROOT: 
+            patternName = "All Tracks"; 
+            break; 
+        case NT_PROBE: 
+            patternTitle = GetProbeName(node->Desc.Probe); 
+            patternName = node->Desc.Probe->Event.Name; 
+            break; 
+        case NT_PARAM: 
+            patternName.append(node->Desc.ParamName + " = " + node->Desc.ParamValue); 
+            break; 
+        } 
+ 
+        os << "<a href=\"" << MakeUrl(e, { 
+                {"pattern", node->GetPath()}, 
+                {"ptrn_anlz", e.Get("ptrn_anlz") ? e.Get("ptrn_anlz") : "resTotal"}, 
+                {"linesfill", "y"}, 
+                {"linessteps", "y"}, 
+                {"pointsshow", "n"}, 
+                {"sel_x1", e.Get("sel_x1") ? e.Get("sel_x1") : "0"}, 
+                {"sel_x2", e.Get("sel_x2") ? e.Get("sel_x2") : "inf"}}) << "\"" 
+              " title=\"" + patternTitle + "\">" << patternName << "</a>"; 
+ 
+        // Add/remove node menu 
+        if (node->Desc.Type != NT_ROOT) { 
+            os << "<div class=\"dropdown pull-right\" style=\"display:inline-block\">"; 
+            if (node->Desc.Type == NT_PARAM) { 
+                os<< "<button class=\"btn btn-xs btn-default\" type=\"button\"" 
+                  << "\" onClick=\"window.location.href='" 
+                  << MakeUrlEraseSub(e, "classify", node->Parent->GetPath() + "@" 
+                                     + ToString(node->Desc.Rollbacks) + "." + node->Desc.ParamName) 
+                  << "';\">" 
+                       "<span class=\"glyphicon glyphicon-minus\"></span>" 
+                     "</button>"; 
+            } 
+            if (node->Classifier->GetChildType() != NT_PARAM) { 
+                os <<    "<button class=\"btn btn-xs btn-default dropdown-toggle\" type=\"button\"" 
+                                " data-toggle=\"dropdown\" aria-haspopup=\"true\" aria-expanded=\"true\">" 
+                           "<span class=\"glyphicon glyphicon-plus\"></span>" 
+                         "</button>" 
+                         "<ul class=\"dropdown-menu\">" 
+                           "<li class=\"dropdown-header\">Classify by param:</li>"; 
+                int rollbacks = 0; 
+                TPatternNode* probeNode = node; 
+                while (probeNode = RollbackFind(probeNode)) { 
+                    const NLWTrace::TProbe* probe = probeNode->Desc.Probe; 
+                    os << "<li class=\"dropdown-header\">" << GetProbeName(probe) << "</li>"; 
+                    const NLWTrace::TSignature* sgn = &probe->Event.Signature; 
+                    for (size_t pi = 0; pi < sgn->ParamCount; pi++) { 
                         TString param = sgn->ParamNames[pi];
                         if (TrackIds.contains(param) || IsFiltered(param)) {
-                            continue;
-                        }
-                        os << "<li><a href=\""
-                           << MakeUrlAddSub(e, "classify", node->GetPath() + "@" + ToString(rollbacks) + "." + param)
-                           << "\">" << param << "</a></li>";
-                    }
-                    rollbacks++;
-                    probeNode = probeNode->Parent;
-                }
-                os <<    "</ul>";
-            }
-            os << "</div>";
-        }
-    }
-
+                            continue; 
+                        } 
+                        os << "<li><a href=\"" 
+                           << MakeUrlAddSub(e, "classify", node->GetPath() + "@" + ToString(rollbacks) + "." + param) 
+                           << "\">" << param << "</a></li>"; 
+                    } 
+                    rollbacks++; 
+                    probeNode = probeNode->Parent; 
+                } 
+                os <<    "</ul>"; 
+            } 
+            os << "</div>"; 
+        } 
+    } 
+ 
     void OutputShare(IOutputStream& os, double share)
-    {
-        double lshare = share;
-        double rshare = 100 - lshare;
-        os << "<div class=\"progress\" style=\"margin-bottom:0px;position:relative\">"
-                "<div class=\"progress-bar progress-bar-success\" role=\"progressbar\""
-                  " aria-valuenow=\"" << lshare << "\""
-                  " aria-valuemin=\"0\""
-                  " aria-valuemax=\"100\""
-                  " style=\"width: " << lshare << "%;\">"
-                "</div>"
-                "<div class=\"progress-bar progress-bar-danger\" role=\"progressbar\""
-                  " aria-valuenow=\"" << rshare << "\""
-                  " aria-valuemin=\"0\""
-                  " aria-valuemax=\"100\""
-                  " style=\"width: " << rshare << "%;\">"
-                "</div>"
-                "<span style=\"position:absolute;left:0;width:100%;text-align:center;z-index:2;color:white\">"
-                  << (share == 100? "100%": Sprintf("%2.1lf%%", share)) <<
-                "</span>"
-              "</div>";
-    }
-
+    { 
+        double lshare = share; 
+        double rshare = 100 - lshare; 
+        os << "<div class=\"progress\" style=\"margin-bottom:0px;position:relative\">" 
+                "<div class=\"progress-bar progress-bar-success\" role=\"progressbar\"" 
+                  " aria-valuenow=\"" << lshare << "\"" 
+                  " aria-valuemin=\"0\"" 
+                  " aria-valuemax=\"100\"" 
+                  " style=\"width: " << lshare << "%;\">" 
+                "</div>" 
+                "<div class=\"progress-bar progress-bar-danger\" role=\"progressbar\"" 
+                  " aria-valuenow=\"" << rshare << "\"" 
+                  " aria-valuemin=\"0\"" 
+                  " aria-valuemax=\"100\"" 
+                  " style=\"width: " << rshare << "%;\">" 
+                "</div>" 
+                "<span style=\"position:absolute;left:0;width:100%;text-align:center;z-index:2;color:white\">" 
+                  << (share == 100? "100%": Sprintf("%2.1lf%%", share)) << 
+                "</span>" 
+              "</div>"; 
+    } 
+ 
     using TTimeline = TVector<std::pair<TPatternNode*, double>>;
-
-    TTimeline MakeTimeline(TPatternNode* node)
-    {
-        TTimeline ret;
-        if (node->TrackCount == 0) {
-            return ret;
-        }
-        ret.reserve(node->TimelineSum.size());
-        for (double time : node->TimelineSum) {
-            ret.emplace_back(nullptr, double(time) / node->TrackCount);
-        }
-        TPatternNode* n = node;
-        for (auto i = ret.rbegin(), e = ret.rend(); i != e; ++i) {
+ 
+    TTimeline MakeTimeline(TPatternNode* node) 
+    { 
+        TTimeline ret; 
+        if (node->TrackCount == 0) { 
+            return ret; 
+        } 
+        ret.reserve(node->TimelineSum.size()); 
+        for (double time : node->TimelineSum) { 
+            ret.emplace_back(nullptr, double(time) / node->TrackCount); 
+        } 
+        TPatternNode* n = node; 
+        for (auto i = ret.rbegin(), e = ret.rend(); i != e; ++i) { 
             WWW_CHECK(n, "internal bug: wrong timeline length at pattern node '%s'", node->GetPath().data());
-            i->first = n;
-            n = n->Parent;
-        }
-        return ret;
-    }
-
+            i->first = n; 
+            n = n->Parent; 
+        } 
+        return ret; 
+    } 
+ 
     void OutputTimeline(IOutputStream& os, const TTimeline& timeline, double maxTime)
-    {
-        static const char *barClass[] = {
-            "progress-bar-info",
-            "progress-bar-warning"
-        };
-        if (timeline.empty()) {
-            return;
-        }
-        os << "<div class=\"progress\" style=\"margin-bottom:0px;color:black\">";
-        double prevPos = 0.0;
-        double prevTime = 0.0;
-        size_t i = 0;
-        for (auto& e : timeline) {
-            TPatternNode* node = e.first;
-            double time = e.second;
-            double pos = time * 100 / maxTime;
-            if (pos > 100) {
-                pos = 100;
-            }
-            double width = pos - prevPos;
-            os << "<div class=\"progress-bar " << barClass[i % 2] << "\" role=\"progressbar\""
-                     " aria-valuenow=\"" << width << "\""
-                     " aria-valuemin=\"0\""
-                     " aria-valuemax=\"100\""
-                     " style=\"width:" << width << "%;color:black\""
-                     " title=\"" << FormatTimelineTooltip(time, prevTime, node) << "\">";
-            if (width > 20) { // To ensure text will fit the bar
-                os << FormatCycles(time - prevTime);
-            }
-            os << "</div>";
-            prevPos = pos;
-            prevTime = time;
-            i++;
-        }
-        os << "</div>";
-    }
-
+    { 
+        static const char *barClass[] = { 
+            "progress-bar-info", 
+            "progress-bar-warning" 
+        }; 
+        if (timeline.empty()) { 
+            return; 
+        } 
+        os << "<div class=\"progress\" style=\"margin-bottom:0px;color:black\">"; 
+        double prevPos = 0.0; 
+        double prevTime = 0.0; 
+        size_t i = 0; 
+        for (auto& e : timeline) { 
+            TPatternNode* node = e.first; 
+            double time = e.second; 
+            double pos = time * 100 / maxTime; 
+            if (pos > 100) { 
+                pos = 100; 
+            } 
+            double width = pos - prevPos; 
+            os << "<div class=\"progress-bar " << barClass[i % 2] << "\" role=\"progressbar\"" 
+                     " aria-valuenow=\"" << width << "\"" 
+                     " aria-valuemin=\"0\"" 
+                     " aria-valuemax=\"100\"" 
+                     " style=\"width:" << width << "%;color:black\"" 
+                     " title=\"" << FormatTimelineTooltip(time, prevTime, node) << "\">"; 
+            if (width > 20) { // To ensure text will fit the bar 
+                os << FormatCycles(time - prevTime); 
+            } 
+            os << "</div>"; 
+            prevPos = pos; 
+            prevTime = time; 
+            i++; 
+        } 
+        os << "</div>"; 
+    } 
+ 
     TString FormatTimelineTooltip(double time, double prevTime, TPatternNode* node)
-    {
-        return FormatCycles(time - prevTime) + ": "
-                + FormatCycles(prevTime) + " -> " + FormatCycles(time)
-                + "(" + node->Name + ")";
-    }
-
+    { 
+        return FormatCycles(time - prevTime) + ": " 
+                + FormatCycles(prevTime) + " -> " + FormatCycles(time) 
+                + "(" + node->Name + ")"; 
+    } 
+ 
     TString FormatFloat(double value)
-    {
-        if (value == 0.0) {
-            return "0";
-        }
-        if (value > 1.0) {
-            if (value > 100.0) {
-                return Sprintf("%.0lf", value);
-            }
-            if (value > 10.0) {
-                return Sprintf("%.1lf", value);
-            }
-            return Sprintf("%.2lf", value);
-        } else if (value > 1e-3) {
-            if (value > 1e-1) {
-                return Sprintf("%.3lf", value);
-            }
-            if (value > 1e-2) {
-                return Sprintf("%.4lf", value);
-            }
-            return Sprintf("%.5lf", value);
-        } else if (value > 1e-6) {
-            if (value > 1e-4) {
-                return Sprintf("%.6lf", value);
-            }
-            if (value > 1e-5) {
-                return Sprintf("%.7lf", value);
-            }
-            return Sprintf("%.8lfus", value);
-        } else {
-            if (value > 1e-7) {
-                return Sprintf("%.9lfns", value);
-            }
-            if (value > 1e-8) {
-                return Sprintf("%.10lfns", value);
-            }
-            return Sprintf("%.2le", value);
-        }
-    }
-
+    { 
+        if (value == 0.0) { 
+            return "0"; 
+        } 
+        if (value > 1.0) { 
+            if (value > 100.0) { 
+                return Sprintf("%.0lf", value); 
+            } 
+            if (value > 10.0) { 
+                return Sprintf("%.1lf", value); 
+            } 
+            return Sprintf("%.2lf", value); 
+        } else if (value > 1e-3) { 
+            if (value > 1e-1) { 
+                return Sprintf("%.3lf", value); 
+            } 
+            if (value > 1e-2) { 
+                return Sprintf("%.4lf", value); 
+            } 
+            return Sprintf("%.5lf", value); 
+        } else if (value > 1e-6) { 
+            if (value > 1e-4) { 
+                return Sprintf("%.6lf", value); 
+            } 
+            if (value > 1e-5) { 
+                return Sprintf("%.7lf", value); 
+            } 
+            return Sprintf("%.8lfus", value); 
+        } else { 
+            if (value > 1e-7) { 
+                return Sprintf("%.9lfns", value); 
+            } 
+            if (value > 1e-8) { 
+                return Sprintf("%.10lfns", value); 
+            } 
+            return Sprintf("%.2le", value); 
+        } 
+    } 
+ 
     TString FormatCycles(double timeCycles)
-    {
-        double timeSec = timeCycles / NHPTimer::GetClockRate();
-        if (timeSec > 1.0) {
-            if (timeSec > 100.0) {
-                return Sprintf("%.0lfs", timeSec);
-            }
-            if (timeSec > 10.0) {
-                return Sprintf("%.1lfs", timeSec);
-            }
-            return Sprintf("%.2lfs", timeSec);
-        } else if (timeSec > 1e-3) {
-            if (timeSec > 1e-1) {
-                return Sprintf("%.0lfms", timeSec * 1e3);
-            }
-            if (timeSec > 1e-2) {
-                return Sprintf("%.1lfms", timeSec * 1e3);
-            }
-            return Sprintf("%.2lfms", timeSec * 1e3);
-        } else if (timeSec > 1e-6) {
-            if (timeSec > 1e-4) {
-                return Sprintf("%.0lfus", timeSec * 1e6);
-            }
-            if (timeSec > 1e-5) {
-                return Sprintf("%.1lfus", timeSec * 1e6);
-            }
-            return Sprintf("%.2lfus", timeSec * 1e6);
-        } else {
-            if (timeSec > 1e-7) {
-                return Sprintf("%.0lfns", timeSec * 1e9);
-            }
-            if (timeSec > 1e-8) {
-                return Sprintf("%.1lfns", timeSec * 1e9);
-            }
-            return Sprintf("%.2lfns", timeSec * 1e9);
-        }
-    }
-
+    { 
+        double timeSec = timeCycles / NHPTimer::GetClockRate(); 
+        if (timeSec > 1.0) { 
+            if (timeSec > 100.0) { 
+                return Sprintf("%.0lfs", timeSec); 
+            } 
+            if (timeSec > 10.0) { 
+                return Sprintf("%.1lfs", timeSec); 
+            } 
+            return Sprintf("%.2lfs", timeSec); 
+        } else if (timeSec > 1e-3) { 
+            if (timeSec > 1e-1) { 
+                return Sprintf("%.0lfms", timeSec * 1e3); 
+            } 
+            if (timeSec > 1e-2) { 
+                return Sprintf("%.1lfms", timeSec * 1e3); 
+            } 
+            return Sprintf("%.2lfms", timeSec * 1e3); 
+        } else if (timeSec > 1e-6) { 
+            if (timeSec > 1e-4) { 
+                return Sprintf("%.0lfus", timeSec * 1e6); 
+            } 
+            if (timeSec > 1e-5) { 
+                return Sprintf("%.1lfus", timeSec * 1e6); 
+            } 
+            return Sprintf("%.2lfus", timeSec * 1e6); 
+        } else { 
+            if (timeSec > 1e-7) { 
+                return Sprintf("%.0lfns", timeSec * 1e9); 
+            } 
+            if (timeSec > 1e-8) { 
+                return Sprintf("%.1lfns", timeSec * 1e9); 
+            } 
+            return Sprintf("%.2lfns", timeSec * 1e9); 
+        } 
+    } 
+ 
     TString GetParam(const NLWTrace::TLogItem& item, TString* paramValues, const TString& paramName)
-    {
-        for (size_t pi = 0; pi < item.SavedParamsCount; pi++) {
-            if (paramName == item.Probe->Event.Signature.ParamNames[pi]) {
-                return paramValues[pi];
-            }
-        }
+    { 
+        for (size_t pi = 0; pi < item.SavedParamsCount; pi++) { 
+            if (paramName == item.Probe->Event.Signature.ParamNames[pi]) { 
+                return paramValues[pi]; 
+            } 
+        } 
         return TString();
-    }
-
+    } 
+ 
     TString GetGroup(const NLWTrace::TLogItem& item, TString* paramValues)
-    {
-        TStringStream ss;
-        bool first = true;
+    { 
+        TStringStream ss; 
+        bool first = true; 
         for (const TString& groupParam : GroupBy) {
-            ss << (first? "": "|") << GetParam(item, paramValues, groupParam);
-            first = false;
-        }
-        return ss.Str();
-    }
-
-    void AddItemToTrack(TThread::TId tid, const NLWTrace::TLogItem& item)
-    {
-        // Ensure cyclic per thread lwtrace logs wont drop *inner* items of a track
-        // (note that some *starting* items can be dropped)
-        if (item.SavedParamsCount > 0 && !CutTs.Skip(item)) {
+            ss << (first? "": "|") << GetParam(item, paramValues, groupParam); 
+            first = false; 
+        } 
+        return ss.Str(); 
+    } 
+ 
+    void AddItemToTrack(TThread::TId tid, const NLWTrace::TLogItem& item) 
+    { 
+        // Ensure cyclic per thread lwtrace logs wont drop *inner* items of a track 
+        // (note that some *starting* items can be dropped) 
+        if (item.SavedParamsCount > 0 && !CutTs.Skip(item)) { 
             TString paramValues[LWTRACE_MAX_PARAMS];
-            item.Probe->Event.Signature.SerializeParams(item.Params, paramValues);
-            Tracks[GetGroup(item, paramValues)].Items.emplace_back(tid, item);
-        }
-    }
-};
-
-NLWTrace::TProbeRegistry g_Probes;
+            item.Probe->Event.Signature.SerializeParams(item.Params, paramValues); 
+            Tracks[GetGroup(item, paramValues)].Items.emplace_back(tid, item); 
+        } 
+    } 
+}; 
+ 
+NLWTrace::TProbeRegistry g_Probes; 
 TString g_sanitizerTest("TString g_sanitizerTest");
-NLWTrace::TManager g_SafeManager(g_Probes, false);
-NLWTrace::TManager g_UnsafeManager(g_Probes, true);
+NLWTrace::TManager g_SafeManager(g_Probes, false); 
+NLWTrace::TManager g_UnsafeManager(g_Probes, true); 
 TDashboardRegistry g_DashboardRegistry;
-
-class TLWTraceMonPage : public NMonitoring::IMonPage {
+ 
+class TLWTraceMonPage : public NMonitoring::IMonPage { 
 private:
-    NLWTrace::TManager* TraceMngr;
+    NLWTrace::TManager* TraceMngr; 
     TString StartTime;
-    TTraceCleaner Cleaner;
-    TMutex SnapshotsMtx;
+    TTraceCleaner Cleaner; 
+    TMutex SnapshotsMtx; 
     THashMap<TString, TAtomicSharedPtr<NLWTrace::TLogPb>> Snapshots;
 public:
-    explicit TLWTraceMonPage(bool allowUnsafe = false)
+    explicit TLWTraceMonPage(bool allowUnsafe = false) 
         : NMonitoring::IMonPage("trace", "Tracing")
-        , TraceMngr(&TraceManager(allowUnsafe))
-        , Cleaner(TraceMngr)
-    {
-        time_t stime = TInstant::Now().TimeT();
-        StartTime = CTimeR(&stime);
-    }
+        , TraceMngr(&TraceManager(allowUnsafe)) 
+        , Cleaner(TraceMngr) 
+    { 
+        time_t stime = TInstant::Now().TimeT(); 
+        StartTime = CTimeR(&stime); 
+    } 
 
     virtual void Output(NMonitoring::IMonHttpRequest& request) {
-        TStringStream out;
+        TStringStream out; 
         try {
-            if (request.GetParams().Get("mode") == "") {
-                OutputTracesAndSnapshots(request, out);
+            if (request.GetParams().Get("mode") == "") { 
+                OutputTracesAndSnapshots(request, out); 
             } else if (request.GetParams().Get("mode") == "probes") {
-                OutputProbes(request, out);
+                OutputProbes(request, out); 
             } else if (request.GetParams().Get("mode") == "dashboards") {
                 OutputDashboards(request, out);
             } else if (request.GetParams().Get("mode") == "dashboard") {
                 OutputDashboard(request, out);
             } else if (request.GetParams().Get("mode") == "log") {
-                OutputLog(request, out);
+                OutputLog(request, out); 
             } else if (request.GetParams().Get("mode") == "query") {
-                OutputQuery(request, out);
-            } else if (request.GetParams().Get("mode") == "builder") {
-                OutputBuilder(request, out);
-            } else if (request.GetParams().Get("mode") == "analytics") {
-                OutputAnalytics(request, out);
+                OutputQuery(request, out); 
+            } else if (request.GetParams().Get("mode") == "builder") { 
+                OutputBuilder(request, out); 
+            } else if (request.GetParams().Get("mode") == "analytics") { 
+                OutputAnalytics(request, out); 
             } else if (request.GetParams().Get("mode") == "new") {
-                PostNew(request, out);
+                PostNew(request, out); 
             } else if (request.GetParams().Get("mode") == "delete") {
-                PostDelete(request, out);
-            } else if (request.GetParams().Get("mode") == "make_snapshot") {
-                PostSnapshot(request, out);
-            } else if (request.GetParams().Get("mode") == "settimeout") {
-                PostSetTimeout(request, out);
+                PostDelete(request, out); 
+            } else if (request.GetParams().Get("mode") == "make_snapshot") { 
+                PostSnapshot(request, out); 
+            } else if (request.GetParams().Get("mode") == "settimeout") { 
+                PostSetTimeout(request, out); 
             } else {
                 ythrow yexception() << "Bad request";
             }
-        } catch (TPageGenBase& gen) {
-            out.Clear();
-            out << gen.what();
-        } catch (...) {
-            out.Clear();
-            if (request.GetParams().Get("error") == "text") {
-                // Text error reply is helpful for ajax requests
-                out << NMonitoring::HTTPOKTEXT;
-                out << CurrentExceptionMessage();
-            } else {
-                WWW_HTML(out) {
-                    out << "<h2>Error</h2><pre>"
-                        << CurrentExceptionMessage()
-                        << Endl;
-                }
-            }
-        }
+        } catch (TPageGenBase& gen) { 
+            out.Clear(); 
+            out << gen.what(); 
+        } catch (...) { 
+            out.Clear(); 
+            if (request.GetParams().Get("error") == "text") { 
+                // Text error reply is helpful for ajax requests 
+                out << NMonitoring::HTTPOKTEXT; 
+                out << CurrentExceptionMessage(); 
+            } else { 
+                WWW_HTML(out) { 
+                    out << "<h2>Error</h2><pre>" 
+                        << CurrentExceptionMessage() 
+                        << Endl; 
+                } 
+            } 
+        } 
         request.Output() << out.Str();
-    }
-
-private:
+    } 
+ 
+private: 
     void OutputNavbar(const NMonitoring::IMonHttpRequest& request, IOutputStream& out)
-    {
+    { 
         TString active = " class=\"active\"";
-        out <<
-            "<nav class=\"navbar navbar-default\"><div class=\"container-fluid\">"
-              << NavbarHeader() <<
-              "<ul class=\"nav navbar-nav\">"
-                "<li" << (request.GetParams().Get("mode") == ""? active: "") << "><a href=\"?mode=\">Traces</a></li>"
-                "<li" << (request.GetParams().Get("mode") == "probes"? active: "") << "><a href=\"?mode=probes\">Probes</a></li>"
+        out << 
+            "<nav class=\"navbar navbar-default\"><div class=\"container-fluid\">" 
+              << NavbarHeader() << 
+              "<ul class=\"nav navbar-nav\">" 
+                "<li" << (request.GetParams().Get("mode") == ""? active: "") << "><a href=\"?mode=\">Traces</a></li>" 
+                "<li" << (request.GetParams().Get("mode") == "probes"? active: "") << "><a href=\"?mode=probes\">Probes</a></li>" 
                 "<li" << (request.GetParams().Get("mode") == "dashboards"? active: "") << "><a href=\"?mode=dashboards\">Dashboard</a></li>"
-                "<li" << (request.GetParams().Get("mode") == "builder"? active: "") << "><a href=\"?mode=builder\">Builder</a></li>"
-                "<li" << (request.GetParams().Get("mode") == "analytics"? active: "") << "><a href=\"?mode=analytics&id=\">Analytics</a></li>"
+                "<li" << (request.GetParams().Get("mode") == "builder"? active: "") << "><a href=\"?mode=builder\">Builder</a></li>" 
+                "<li" << (request.GetParams().Get("mode") == "analytics"? active: "") << "><a href=\"?mode=analytics&id=\">Analytics</a></li>" 
                 "<li><a href=\"https://wiki.yandex-team.ru/development/poisk/arcadia/library/cpp/lwtrace/\" target=\"_blank\">Documentation</a></li>"
-              "</ul>"
-            "</div></nav>"
-            ;
-    }
-
-    template <class TReader>
-    void ReadSnapshots(TReader& reader) const
-    {
-        TGuard<TMutex> g(SnapshotsMtx);
-        for (const auto& kv : Snapshots) {
-            reader.Push(kv.first, kv.second);
-        }
-    }
-
+              "</ul>" 
+            "</div></nav>" 
+            ; 
+    } 
+ 
+    template <class TReader> 
+    void ReadSnapshots(TReader& reader) const 
+    { 
+        TGuard<TMutex> g(SnapshotsMtx); 
+        for (const auto& kv : Snapshots) { 
+            reader.Push(kv.first, kv.second); 
+        } 
+    } 
+ 
     void OutputTracesAndSnapshots(const NMonitoring::IMonHttpRequest& request, IOutputStream& out)
-    {
-        TLogSources logSources(Cleaner);
-        TraceMngr->ReadTraces(logSources);
-        ReadSnapshots(logSources);
-
-        TStringStream ss;
-        TTracesHtmlPrinter printer(ss);
-        logSources.ForEach(printer);
-        WWW_HTML(out) {
-            OutputNavbar(request, out);
-            out <<
-                "<table class=\"table table-striped\">"
-                "<tr><th>Start Time</th><th>Timeout</th><th>Name</th><th>Events</th><th>Threads</th><th></th><th></th><th></th><th></th><th></th></tr>"
-                << ss.Str() <<
-                "</table>"
-                ;
-            out << "<hr/><p><strong>Start time:</strong> " << StartTime;
-            out << "<br/><strong>Build date:</strong> ";
-            out << __DATE__ << " " << __TIME__ << "</p>" << Endl;
-        }
-    }
-
+    { 
+        TLogSources logSources(Cleaner); 
+        TraceMngr->ReadTraces(logSources); 
+        ReadSnapshots(logSources); 
+ 
+        TStringStream ss; 
+        TTracesHtmlPrinter printer(ss); 
+        logSources.ForEach(printer); 
+        WWW_HTML(out) { 
+            OutputNavbar(request, out); 
+            out << 
+                "<table class=\"table table-striped\">" 
+                "<tr><th>Start Time</th><th>Timeout</th><th>Name</th><th>Events</th><th>Threads</th><th></th><th></th><th></th><th></th><th></th></tr>" 
+                << ss.Str() << 
+                "</table>" 
+                ; 
+            out << "<hr/><p><strong>Start time:</strong> " << StartTime; 
+            out << "<br/><strong>Build date:</strong> "; 
+            out << __DATE__ << " " << __TIME__ << "</p>" << Endl; 
+        } 
+    } 
+ 
     void OutputProbes(const NMonitoring::IMonHttpRequest& request, IOutputStream& out)
-    {
-        TStringStream ss;
-        TProbesHtmlPrinter printer;
-        TraceMngr->ReadProbes(printer);
-        printer.Output(ss);
-        WWW_HTML(out) {
-            OutputNavbar(request, out);
-            out << ss.Str();
-        }
-    }
-
+    { 
+        TStringStream ss; 
+        TProbesHtmlPrinter printer; 
+        TraceMngr->ReadProbes(printer); 
+        printer.Output(ss); 
+        WWW_HTML(out) { 
+            OutputNavbar(request, out); 
+            out << ss.Str(); 
+        } 
+    } 
+ 
     void OutputDashboards(const NMonitoring::IMonHttpRequest& request, IOutputStream& out)
     {
         TStringStream ss;
@@ -3910,7 +3910,7 @@ private:
         WWW_HTML(out) {
             OutputNavbar(request, out);
             out << ss.Str();
-        }
+        } 
     }
 
     void OutputDashboard(const NMonitoring::IMonHttpRequest& request, IOutputStream& out) {
@@ -3918,97 +3918,97 @@ private:
             ythrow yexception() << "Cgi-parameter 'name' is not specified";
         } else {
             auto name = request.GetParams().Get("name");
-            NLWTrace::TDashboard dash;
+            NLWTrace::TDashboard dash; 
             if (!g_DashboardRegistry.Get(name, dash)) {
                 ythrow yexception() << "Dashboard doesn't exist";
             }
             WWW_HTML(out) {
                 OutputNavbar(request, out);
-                out << "<style type='text/css'>html, body { height: 100%; }</style>";
-                out << "<h2>" << dash.GetName() << "</h2>";
-                if (dash.GetDescription()) {
-                    out << "<h3>" << dash.GetDescription() << "</h3>";
-                }
-                int height = 85; // %
-                int minHeight = 100; // px
-                out << "<table height='" << height << "%' width='100%' cellpadding='4'><tbody height='100%' width='100%'>";
-                ui32 rows = 0;
-                auto maxRowSpan = [](const auto& row) {
-                    ui32 rowSpan = 1;
-                    for (const auto& cell : row.GetCells()) {
-                        rowSpan = Max(rowSpan, cell.GetRowSpan());
-                    }
-                    return rowSpan;
-                };
-                for (const auto& row : dash.GetRows()) {
-                    rows += maxRowSpan(row);
-                }
-                for (const auto& row : dash.GetRows()) {
-                    int rowSpan = maxRowSpan(row);
-                    out << "<tr align='left' valign='top' style='height:" << (height * rowSpan / rows) << "%; min-height:" << (minHeight * rowSpan)<< "px'>";
-                    for (const auto& cell : row.GetCells()) {
-                        TString url = cell.GetUrl();
-                        TString title = cell.GetTitle();
-                        TString text = cell.GetText();
-                        auto rowSpan = Max<ui64>(1, cell.GetRowSpan());
-                        auto colSpan = Max<ui64>(1, cell.GetColSpan());
-                        if (url) {
-                            if (title) {
-                                out << "<td rowspan='" << rowSpan << "' colSpan='1'><a href=" << url << ">" << title << "</a><br>";
-                            }
-                            out << "<iframe scrolling='no' width='" << 100 * colSpan << "%' height='" << height << "%' style='border: 0' src=" << url << "></iframe></td>";
-                            // Add fake cells to fix html table
-                            for (ui32 left = 1; left < colSpan; ++left) {
-                                out << "<td height='100%' rowspan='" << rowSpan << "' colSpan='1'>"
-                                    << "<iframe scrolling='no' width='100%' height='100%' style='border: 0' src=" << "" << "></iframe></td>";
+                out << "<style type='text/css'>html, body { height: 100%; }</style>"; 
+                out << "<h2>" << dash.GetName() << "</h2>"; 
+                if (dash.GetDescription()) { 
+                    out << "<h3>" << dash.GetDescription() << "</h3>"; 
+                } 
+                int height = 85; // % 
+                int minHeight = 100; // px 
+                out << "<table height='" << height << "%' width='100%' cellpadding='4'><tbody height='100%' width='100%'>"; 
+                ui32 rows = 0; 
+                auto maxRowSpan = [](const auto& row) { 
+                    ui32 rowSpan = 1; 
+                    for (const auto& cell : row.GetCells()) { 
+                        rowSpan = Max(rowSpan, cell.GetRowSpan()); 
+                    } 
+                    return rowSpan; 
+                }; 
+                for (const auto& row : dash.GetRows()) { 
+                    rows += maxRowSpan(row); 
+                } 
+                for (const auto& row : dash.GetRows()) { 
+                    int rowSpan = maxRowSpan(row); 
+                    out << "<tr align='left' valign='top' style='height:" << (height * rowSpan / rows) << "%; min-height:" << (minHeight * rowSpan)<< "px'>"; 
+                    for (const auto& cell : row.GetCells()) { 
+                        TString url = cell.GetUrl(); 
+                        TString title = cell.GetTitle(); 
+                        TString text = cell.GetText(); 
+                        auto rowSpan = Max<ui64>(1, cell.GetRowSpan()); 
+                        auto colSpan = Max<ui64>(1, cell.GetColSpan()); 
+                        if (url) { 
+                            if (title) { 
+                                out << "<td rowspan='" << rowSpan << "' colSpan='1'><a href=" << url << ">" << title << "</a><br>"; 
                             }
-                        } else {
-                            out << "<td style='font-size: 25px' align='left' rowspan='" << rowSpan << "' colSpan='" << colSpan << "'>" << text << "</td>";
+                            out << "<iframe scrolling='no' width='" << 100 * colSpan << "%' height='" << height << "%' style='border: 0' src=" << url << "></iframe></td>"; 
+                            // Add fake cells to fix html table 
+                            for (ui32 left = 1; left < colSpan; ++left) { 
+                                out << "<td height='100%' rowspan='" << rowSpan << "' colSpan='1'>" 
+                                    << "<iframe scrolling='no' width='100%' height='100%' style='border: 0' src=" << "" << "></iframe></td>"; 
+                            } 
+                        } else { 
+                            out << "<td style='font-size: 25px' align='left' rowspan='" << rowSpan << "' colSpan='" << colSpan << "'>" << text << "</td>"; 
                         }
                     }
-                }
+                } 
                 out << "</tbody></table>";
             }
         }
     }
 
-    static double ParseDouble(const TString& s)
-    {
-        if (s == "inf") {
-            return std::numeric_limits<double>::infinity();
-        } else if (s == "-inf") {
-            return -std::numeric_limits<double>::infinity();
-        } else {
-            return FromString<double>(s);
-        }
-    }
-
+    static double ParseDouble(const TString& s) 
+    { 
+        if (s == "inf") { 
+            return std::numeric_limits<double>::infinity(); 
+        } else if (s == "-inf") { 
+            return -std::numeric_limits<double>::infinity(); 
+        } else { 
+            return FromString<double>(s); 
+        } 
+    } 
+ 
     void OutputLog(const NMonitoring::IMonHttpRequest& request, IOutputStream& out)
-    {
-        if (request.GetParams().NumOfValues("id") == 0) {
-            ythrow yexception() << "Cgi-parameter 'id' is not specified";
-        } else {
+    { 
+        if (request.GetParams().NumOfValues("id") == 0) { 
+            ythrow yexception() << "Cgi-parameter 'id' is not specified"; 
+        } else { 
             const TCgiParameters& e = request.GetParams();
-            TStringStream ss;
-            if (e.Get("format") == "json") {
-                TLogJsonPrinter printer(ss);
-                printer.OutputHeader();
-                TString id = e.Get("id");
-                CheckAdHocTrace(id, TDuration::Minutes(1));
-                TraceMngr->ReadLog(id, printer);
-                printer.OutputFooter(TraceMngr->GetTrace(id));
-                out << HTTPOKJSON;
-                out << ss.Str();
-            } if (e.Get("format") == "json2") {
-                TLogTextPrinter printer(e);
-                for (const TString& id : Subvalues(e, "id")) {
-                    CheckAdHocTrace(id, TDuration::Minutes(1));
-                    TraceMngr->ReadLog(id, printer);
-                    TraceMngr->ReadDepot(id, printer);
-                }
-                printer.OutputJson(ss);
-                out << HTTPOKJSON;
-                out << ss.Str();
+            TStringStream ss; 
+            if (e.Get("format") == "json") { 
+                TLogJsonPrinter printer(ss); 
+                printer.OutputHeader(); 
+                TString id = e.Get("id"); 
+                CheckAdHocTrace(id, TDuration::Minutes(1)); 
+                TraceMngr->ReadLog(id, printer); 
+                printer.OutputFooter(TraceMngr->GetTrace(id)); 
+                out << HTTPOKJSON; 
+                out << ss.Str(); 
+            } if (e.Get("format") == "json2") { 
+                TLogTextPrinter printer(e); 
+                for (const TString& id : Subvalues(e, "id")) { 
+                    CheckAdHocTrace(id, TDuration::Minutes(1)); 
+                    TraceMngr->ReadLog(id, printer); 
+                    TraceMngr->ReadDepot(id, printer); 
+                } 
+                printer.OutputJson(ss); 
+                out << HTTPOKJSON; 
+                out << ss.Str(); 
             } else if (e.Get("format") == "analytics" && e.Get("aggr") == "tracks") {
                 TLogTrackExtractor logTrackExtractor(e,
                     Subvalues(e, "f"),
@@ -4027,8 +4027,8 @@ private:
 
                 TLogTextPrinter printer(e);
                 const TString& distBy = patternAnalyzer;
-                double sel_x1 = e.Get("sel_x1")? ParseDouble(e.Get("sel_x1")): NAN;
-                double sel_x2 = e.Get("sel_x2")? ParseDouble(e.Get("sel_x2")): NAN;
+                double sel_x1 = e.Get("sel_x1")? ParseDouble(e.Get("sel_x1")): NAN; 
+                double sel_x2 = e.Get("sel_x2")? ParseDouble(e.Get("sel_x2")): NAN; 
                 TSampleOpts opts;
                 opts.ShowProvider = (e.Get("show_provider") == "y");
                 if (e.Get("size_limit")) {
@@ -4038,101 +4038,101 @@ private:
                 printer.Output(ss);
                 out << HTTPOKTEXT;
                 out << ss.Str();
-            } else {
+            } else { 
                 TLogTextPrinter printer(e);
                 for (const TString& id : Subvalues(e, "id")) {
-                    CheckAdHocTrace(id, TDuration::Minutes(1));
-                    TraceMngr->ReadLog(id, printer);
-                    TraceMngr->ReadDepot(id, printer);
-                }
-                printer.Output(ss);
-                out << HTTPOKTEXT;
-                out << ss.Str();
-            }
-        }
-    }
-
+                    CheckAdHocTrace(id, TDuration::Minutes(1)); 
+                    TraceMngr->ReadLog(id, printer); 
+                    TraceMngr->ReadDepot(id, printer); 
+                } 
+                printer.Output(ss); 
+                out << HTTPOKTEXT; 
+                out << ss.Str(); 
+            } 
+        } 
+    } 
+ 
     void OutputQuery(const NMonitoring::IMonHttpRequest& request, IOutputStream& out)
-    {
-        if (request.GetParams().NumOfValues("id") == 0) {
-            ythrow yexception() << "Cgi-parameter 'id' is not specified";
-        } else {
+    { 
+        if (request.GetParams().NumOfValues("id") == 0) { 
+            ythrow yexception() << "Cgi-parameter 'id' is not specified"; 
+        } else { 
             TString id = request.GetParams().Get("id");
-            const NLWTrace::TQuery& query = TraceMngr->GetTrace(id)->GetQuery();
+            const NLWTrace::TQuery& query = TraceMngr->GetTrace(id)->GetQuery(); 
             TString queryStr = query.DebugString();
-            WWW_HTML(out) {
-                out << "<h2>Trace Query: " << id << "</h2><pre>" << queryStr;
-            }
+            WWW_HTML(out) { 
+                out << "<h2>Trace Query: " << id << "</h2><pre>" << queryStr; 
+            } 
         }
     }
-
+ 
     void OutputBuilder(const NMonitoring::IMonHttpRequest& request, IOutputStream& out)
-    {
-        Y_UNUSED(request);
-        WWW_HTML(out) {
-            OutputNavbar(request, out);
-            out << "<form class=\"form-horizontal\" action=\"?mode=new&ui=y\" method=\"POST\">";
-            DIV_CLASS("form-group") {
-                LABEL_CLASS_FOR("col-sm-1 control-label", "inputId") { out << "Name"; }
-                DIV_CLASS("col-sm-11") {
-                    out << "<input class=\"form-control\" id=\"inputId\" name=\"id\" placeholder=\"mytrace\">";
-                }
-            }
-            DIV_CLASS("form-group") {
-                LABEL_CLASS_FOR("col-sm-1 control-label", "textareaQuery") { out << "Query"; }
-                DIV_CLASS("col-sm-11") {
-                    out << "<textarea class=\"form-control\" id=\"textareaQuery\" name=\"query\" rows=\"10\"></textarea>";
-                }
-            }
-            DIV_CLASS("form-group") {
-                DIV_CLASS("col-sm-offset-1 col-sm-11") {
-                    out << "<button type=\"submit\" class=\"btn btn-default\">Trace</button>";
-                }
-            }
-            out << "</form>";
-        }
-    }
-
+    { 
+        Y_UNUSED(request); 
+        WWW_HTML(out) { 
+            OutputNavbar(request, out); 
+            out << "<form class=\"form-horizontal\" action=\"?mode=new&ui=y\" method=\"POST\">"; 
+            DIV_CLASS("form-group") { 
+                LABEL_CLASS_FOR("col-sm-1 control-label", "inputId") { out << "Name"; } 
+                DIV_CLASS("col-sm-11") { 
+                    out << "<input class=\"form-control\" id=\"inputId\" name=\"id\" placeholder=\"mytrace\">"; 
+                } 
+            } 
+            DIV_CLASS("form-group") { 
+                LABEL_CLASS_FOR("col-sm-1 control-label", "textareaQuery") { out << "Query"; } 
+                DIV_CLASS("col-sm-11") { 
+                    out << "<textarea class=\"form-control\" id=\"textareaQuery\" name=\"query\" rows=\"10\"></textarea>"; 
+                } 
+            } 
+            DIV_CLASS("form-group") { 
+                DIV_CLASS("col-sm-offset-1 col-sm-11") { 
+                    out << "<button type=\"submit\" class=\"btn btn-default\">Trace</button>"; 
+                } 
+            } 
+            out << "</form>"; 
+        } 
+    } 
+ 
     void OutputAnalytics(const NMonitoring::IMonHttpRequest& request, TStringStream& out)
-    {
-        using namespace NAnalytics;
-        const TCgiParameters& e = request.GetParams();
-
-        TLogSources logSources(Cleaner);
-        TraceMngr->ReadTraces(logSources);
-        ReadSnapshots(logSources);
-
-        RequireMultipleSelection(out, e, "id", "Analyze ", ListTraces(logSources));
-
-        THolder<TLogFilter> logFilter;
-        TLogAnalyzer* logAnalyzer = nullptr;
-        TLogTrackExtractor* logTracks = nullptr;
-        if (request.GetParams().Get("aggr") == "tracks") {
-            logFilter.Reset(logTracks = new TLogTrackExtractor(e,
-                Subvalues(request.GetParams(), "f"),
-                Subvalues(request.GetParams(), "g")
-            ));
+    { 
+        using namespace NAnalytics; 
+        const TCgiParameters& e = request.GetParams(); 
+ 
+        TLogSources logSources(Cleaner); 
+        TraceMngr->ReadTraces(logSources); 
+        ReadSnapshots(logSources); 
+ 
+        RequireMultipleSelection(out, e, "id", "Analyze ", ListTraces(logSources)); 
+ 
+        THolder<TLogFilter> logFilter; 
+        TLogAnalyzer* logAnalyzer = nullptr; 
+        TLogTrackExtractor* logTracks = nullptr; 
+        if (request.GetParams().Get("aggr") == "tracks") { 
+            logFilter.Reset(logTracks = new TLogTrackExtractor(e, 
+                Subvalues(request.GetParams(), "f"), 
+                Subvalues(request.GetParams(), "g") 
+            )); 
             for (const TString& id : Subvalues(request.GetParams(), "id")) {
-                CheckAdHocTrace(id, TDuration::Minutes(1));
-                TraceMngr->ReadLog(id, *logTracks);
-                TraceMngr->ReadDepot(id, *logTracks);
-            }
-        } else {
-            logFilter.Reset(logAnalyzer = new TLogAnalyzer(
-                Subvalues(request.GetParams(), "f"),
-                Subvalues(request.GetParams(), "g"),
-                request.GetParams().Get("cutts") == "y"
-            ));
+                CheckAdHocTrace(id, TDuration::Minutes(1)); 
+                TraceMngr->ReadLog(id, *logTracks); 
+                TraceMngr->ReadDepot(id, *logTracks); 
+            } 
+        } else { 
+            logFilter.Reset(logAnalyzer = new TLogAnalyzer( 
+                Subvalues(request.GetParams(), "f"), 
+                Subvalues(request.GetParams(), "g"), 
+                request.GetParams().Get("cutts") == "y" 
+            )); 
             for (const TString& id : Subvalues(request.GetParams(), "id")) {
-                CheckAdHocTrace(id, TDuration::Minutes(1));
-                TraceMngr->ReadLog(id, *logAnalyzer);
-                TraceMngr->ReadDepot(id, *logAnalyzer);
-            }
-        }
-
-        logFilter->FilterSelectors(out, e, "f");
-
-        OptionalMultipleSelection(out, e, "g", "group by", logFilter->ListParamNames());
+                CheckAdHocTrace(id, TDuration::Minutes(1)); 
+                TraceMngr->ReadLog(id, *logAnalyzer); 
+                TraceMngr->ReadDepot(id, *logAnalyzer); 
+            } 
+        } 
+ 
+        logFilter->FilterSelectors(out, e, "f"); 
+
+        OptionalMultipleSelection(out, e, "g", "group by", logFilter->ListParamNames()); 
         {
             auto paramNamesList = logFilter->ListParamNames();
             if (e.Get("aggr") == "tracks") {
@@ -4140,7 +4140,7 @@ private:
             }
             OptionalSelection(out, e, "s", "order by", paramNamesList);
         }
-
+ 
         if (e.Get("s")) {
             TVariants variants;
             variants.emplace_back("", "asc");
@@ -4149,130 +4149,130 @@ private:
         }
 
         TString aggr = e.Get("aggr");
-        TVariants variants1; // MSVS2013 doesn't understand complex initializer lists
-        variants1.emplace_back("", "without aggregation");
-        variants1.emplace_back("hist", "as histogram");
-        variants1.emplace_back("tracks", "tracks");
-        DropdownSelector<Link>(out, e, "aggr", e.Get("aggr"), "", variants1);
-
-        unsigned refresh = e.Get("refresh")?
-                    FromString<unsigned>(e.Get("refresh")):
-                    1000;
-
-        if (aggr == "tracks") {
-            TVariants ileVars;
-            ileVars.emplace_back("0", "0");
-            ileVars.emplace_back("25", "25");
-            ileVars.emplace_back("50", "50");
-            ileVars.emplace_back("75", "75");
-            ileVars.emplace_back("", "90");
-            ileVars.emplace_back("95", "95");
-            ileVars.emplace_back("99", "99");
-            ileVars.emplace_back("99.9", "99.9");
-            ileVars.emplace_back("100", "100");
-            DropdownSelector<Link>(out, e, "ile", e.Get("ile"), "and show", ileVars);
-            out << "%-ile. ";
-            TString patternAnalyzer;
+        TVariants variants1; // MSVS2013 doesn't understand complex initializer lists 
+        variants1.emplace_back("", "without aggregation"); 
+        variants1.emplace_back("hist", "as histogram"); 
+        variants1.emplace_back("tracks", "tracks"); 
+        DropdownSelector<Link>(out, e, "aggr", e.Get("aggr"), "", variants1); 
+ 
+        unsigned refresh = e.Get("refresh")? 
+                    FromString<unsigned>(e.Get("refresh")): 
+                    1000; 
+ 
+        if (aggr == "tracks") { 
+            TVariants ileVars; 
+            ileVars.emplace_back("0", "0"); 
+            ileVars.emplace_back("25", "25"); 
+            ileVars.emplace_back("50", "50"); 
+            ileVars.emplace_back("75", "75"); 
+            ileVars.emplace_back("", "90"); 
+            ileVars.emplace_back("95", "95"); 
+            ileVars.emplace_back("99", "99"); 
+            ileVars.emplace_back("99.9", "99.9"); 
+            ileVars.emplace_back("100", "100"); 
+            DropdownSelector<Link>(out, e, "ile", e.Get("ile"), "and show", ileVars); 
+            out << "%-ile. "; 
+            TString patternAnalyzer; 
             TString distBy;
             TString distType;
-            if (e.Get("pattern")) {
-                TVariants analyzePatternVars;
-                analyzePatternVars.emplace_back("resTotal", "distribution by total");
-                analyzePatternVars.emplace_back("resLast", "distribution by last");
-                analyzePatternVars.emplace_back("covMatrix", "covariance matrix");
-                DropdownSelector<Link>(
-                    out, e, "ptrn_anlz", e.Get("ptrn_anlz"),
-                    "Pattern", analyzePatternVars
-                );
-                patternAnalyzer = e.Get("ptrn_anlz");
-
-                TVariants distTypeVars;
-                distTypeVars.emplace_back("", "as is");
-                distTypeVars.emplace_back("-stack", "cumulative");
-                DropdownSelector<Link>(out, e, "dist_type", e.Get("dist_type"), "", distTypeVars);
-                distType = e.Get("dist_type");
-            } else {
-                out << "<i>Select pattern for more options</i>";
-            }
-            logTracks->Run();
-
-            if (e.Get("download") == "y") {
-                out.Clear();
-                out <<
-                    "HTTP/1.1 200 Ok\r\n"
-                    "Content-Type: application/force-download\r\n"
-                    "Content-Transfer-Encoding: binary\r\n"
-                    "Content-Disposition: attachment; filename=\"trace_chrome.json\"\r\n"
-                    "\r\n"
-                    ;
-                logTracks->OutputChromeTrace(out, e);
-                return;
-            }
-
-            NAnalytics::TTable distData;
-            bool showSample = false;
+            if (e.Get("pattern")) { 
+                TVariants analyzePatternVars; 
+                analyzePatternVars.emplace_back("resTotal", "distribution by total"); 
+                analyzePatternVars.emplace_back("resLast", "distribution by last"); 
+                analyzePatternVars.emplace_back("covMatrix", "covariance matrix"); 
+                DropdownSelector<Link>( 
+                    out, e, "ptrn_anlz", e.Get("ptrn_anlz"), 
+                    "Pattern", analyzePatternVars 
+                ); 
+                patternAnalyzer = e.Get("ptrn_anlz"); 
+ 
+                TVariants distTypeVars; 
+                distTypeVars.emplace_back("", "as is"); 
+                distTypeVars.emplace_back("-stack", "cumulative"); 
+                DropdownSelector<Link>(out, e, "dist_type", e.Get("dist_type"), "", distTypeVars); 
+                distType = e.Get("dist_type"); 
+            } else { 
+                out << "<i>Select pattern for more options</i>"; 
+            } 
+            logTracks->Run(); 
+ 
+            if (e.Get("download") == "y") { 
+                out.Clear(); 
+                out << 
+                    "HTTP/1.1 200 Ok\r\n" 
+                    "Content-Type: application/force-download\r\n" 
+                    "Content-Transfer-Encoding: binary\r\n" 
+                    "Content-Disposition: attachment; filename=\"trace_chrome.json\"\r\n" 
+                    "\r\n" 
+                    ; 
+                logTracks->OutputChromeTrace(out, e); 
+                return; 
+            } 
+ 
+            NAnalytics::TTable distData; 
+            bool showSample = false; 
             TLogTextPrinter printer(e);
-
-            if (patternAnalyzer == "resTotal" || patternAnalyzer == "resLast") {
-                distBy = patternAnalyzer;
-                distData = logTracks->Distribution(distBy, "", "", e.Get("width"));
-                double sel_x1 = e.Get("sel_x1")? ParseDouble(e.Get("sel_x1")): NAN;
-                double sel_x2 = e.Get("sel_x2")? ParseDouble(e.Get("sel_x2")): NAN;
-                if (!isnan(sel_x1) && !isnan(sel_x2)) {
-                    showSample = true;
-                    TSampleOpts opts;
-                    opts.ShowProvider = (e.Get("show_provider") == "y");
-                    if (e.Get("size_limit")) {
-                        opts.SizeLimit = FromString<size_t>(e.Get("size_limit"));
-                    }
+ 
+            if (patternAnalyzer == "resTotal" || patternAnalyzer == "resLast") { 
+                distBy = patternAnalyzer; 
+                distData = logTracks->Distribution(distBy, "", "", e.Get("width")); 
+                double sel_x1 = e.Get("sel_x1")? ParseDouble(e.Get("sel_x1")): NAN; 
+                double sel_x2 = e.Get("sel_x2")? ParseDouble(e.Get("sel_x2")): NAN; 
+                if (!isnan(sel_x1) && !isnan(sel_x2)) { 
+                    showSample = true; 
+                    TSampleOpts opts; 
+                    opts.ShowProvider = (e.Get("show_provider") == "y"); 
+                    if (e.Get("size_limit")) { 
+                        opts.SizeLimit = FromString<size_t>(e.Get("size_limit")); 
+                    } 
                     logTracks->OutputSample(distBy, sel_x1, sel_x2, opts, printer);
-                }
-            }
-
+                } 
+            } 
+ 
             TString selectors = out.Str();
-            out.Clear();
-            out << NMonitoring::HTTPOKHTML;
-            out << "<!DOCTYPE html>" << Endl;
-            HTML(out) {
-                HTML_TAG() {
-                    HEAD() {
-                        out << NResource::Find("lwtrace/mon/static/analytics.header.html") << Endl;
-                        if (distBy) {
-                            out <<
-                            "<script type=\"text/javascript\">\n"
-                            "$(function() {\n"
-                            "    var dataurl = null;\n"
-                            "    var datajson = " << ToJsonFlot(distData, distBy, {"_count_sum" + distType}) << ";\n"
-                            "    var refreshPeriod = 0;\n"
-                            "    var xn = \"" << distBy << "\";\n"
-                            "    var navigate = false;\n"
-                              << NResource::Find("lwtrace/mon/static/analytics.js") <<
-                            "    embededMode();"
-                            "    enableSelection();"
-                            "});\n"
-                            "</script>\n";
-                        }
-                        // Show download button
-                        out <<
-                        "<script type=\"text/javascript\">"
-                        "$(function() {"
-                        "    $(\"#download-btn\").click(function(){window.location.href='"
-                                                         << MakeUrlAdd(e, "download", "y") <<
-                                                        "';});"
-                        "    $(\"#download-btn\").removeClass(\"hidden\");"
-                        "});"
-                        "</script>\n";
-                    }
-                    BODY() {
-                        // Wrap selectors with navbar
-                        { TSelectorsContainer sc(out);
-                            out << selectors;
-                        }
-
-                        logTracks->OutputTable(out, e);
-                        if (distBy) {
-                            out << NResource::Find("lwtrace/mon/static/analytics.flot.html") << Endl;
-                            if (showSample) {
+            out.Clear(); 
+            out << NMonitoring::HTTPOKHTML; 
+            out << "<!DOCTYPE html>" << Endl; 
+            HTML(out) { 
+                HTML_TAG() { 
+                    HEAD() { 
+                        out << NResource::Find("lwtrace/mon/static/analytics.header.html") << Endl; 
+                        if (distBy) { 
+                            out << 
+                            "<script type=\"text/javascript\">\n" 
+                            "$(function() {\n" 
+                            "    var dataurl = null;\n" 
+                            "    var datajson = " << ToJsonFlot(distData, distBy, {"_count_sum" + distType}) << ";\n" 
+                            "    var refreshPeriod = 0;\n" 
+                            "    var xn = \"" << distBy << "\";\n" 
+                            "    var navigate = false;\n" 
+                              << NResource::Find("lwtrace/mon/static/analytics.js") << 
+                            "    embededMode();" 
+                            "    enableSelection();" 
+                            "});\n" 
+                            "</script>\n"; 
+                        } 
+                        // Show download button 
+                        out << 
+                        "<script type=\"text/javascript\">" 
+                        "$(function() {" 
+                        "    $(\"#download-btn\").click(function(){window.location.href='" 
+                                                         << MakeUrlAdd(e, "download", "y") << 
+                                                        "';});" 
+                        "    $(\"#download-btn\").removeClass(\"hidden\");" 
+                        "});" 
+                        "</script>\n"; 
+                    } 
+                    BODY() { 
+                        // Wrap selectors with navbar 
+                        { TSelectorsContainer sc(out); 
+                            out << selectors; 
+                        } 
+ 
+                        logTracks->OutputTable(out, e); 
+                        if (distBy) { 
+                            out << NResource::Find("lwtrace/mon/static/analytics.flot.html") << Endl; 
+                            if (showSample) { 
                                 static const THashSet<TString> keepParams = {
                                     "f",
                                     "g",
@@ -4302,134 +4302,134 @@ private:
                                 out << "<pre>\n";
                                 printer.Output(out);
                                 out << "</pre>\n";
-                            }
-                        }
-
-                        if (patternAnalyzer == "covMatrix") {
-                            logTracks->OutputSliceCovarianceMatrix(out, e);
-                        }
-                    }
-                }
-            }
-        } else {
-            double width = e.Get("width")? FromString<double>(e.Get("width")): 99;
-
-            NAnalytics::TTable data;
-            if (aggr == "") {
-                data = logAnalyzer->GetTable();
-            } else if (aggr == "hist") {
-                RequireSelection(out, e, "bn", "by", logFilter->ListParamNames());
-                const NAnalytics::TTable& inputTable = logAnalyzer->GetTable();
+                            } 
+                        } 
+ 
+                        if (patternAnalyzer == "covMatrix") { 
+                            logTracks->OutputSliceCovarianceMatrix(out, e); 
+                        } 
+                    } 
+                } 
+            } 
+        } else { 
+            double width = e.Get("width")? FromString<double>(e.Get("width")): 99; 
+ 
+            NAnalytics::TTable data; 
+            if (aggr == "") { 
+                data = logAnalyzer->GetTable(); 
+            } else if (aggr == "hist") { 
+                RequireSelection(out, e, "bn", "by", logFilter->ListParamNames()); 
+                const NAnalytics::TTable& inputTable = logAnalyzer->GetTable(); 
                 TString bn = e.Get("bn");
-                double b1 = e.Get("b1")? FromString<double>(e.Get("b1")): MinValue(bn, inputTable);
-                double b2 = e.Get("b2")? FromString<double>(e.Get("b2")): MaxValue(bn, inputTable);
-                if (isfinite(b1) && isfinite(b2)) {
-                    WWW_CHECK(b1 <= b2, "invalid xrange [%le; %le]", b1, b2);
-                    double dx = e.Get("dx")? FromString<double>(e.Get("dx")): (b2-b1)/width;
-                    data = HistogramAll(inputTable, e.Get("bn"), b1, b2, dx);
-                } else {
-                    // Empty table -- it's ok -- leave data table empty
-                }
-            }
-
+                double b1 = e.Get("b1")? FromString<double>(e.Get("b1")): MinValue(bn, inputTable); 
+                double b2 = e.Get("b2")? FromString<double>(e.Get("b2")): MaxValue(bn, inputTable); 
+                if (isfinite(b1) && isfinite(b2)) { 
+                    WWW_CHECK(b1 <= b2, "invalid xrange [%le; %le]", b1, b2); 
+                    double dx = e.Get("dx")? FromString<double>(e.Get("dx")): (b2-b1)/width; 
+                    data = HistogramAll(inputTable, e.Get("bn"), b1, b2, dx); 
+                } else { 
+                    // Empty table -- it's ok -- leave data table empty 
+                } 
+            } 
+ 
             TString xn = e.Get("xn");
-
+ 
             TString outFormat = e.Get("out");
-            TVariants variants2;
-            variants2.emplace_back("html", "table");
-            variants2.emplace_back("flot", "chart");
-            variants2.emplace_back("gantt", "gantt");
-            variants2.emplace_back("text", "text");
-            variants2.emplace_back("csv", "CSV");
-            variants2.emplace_back("json_flot", "JSON");
-
-            RequireSelection(out, e, "out", "and show", variants2);
-            if (outFormat == "csv") {
+            TVariants variants2; 
+            variants2.emplace_back("html", "table"); 
+            variants2.emplace_back("flot", "chart"); 
+            variants2.emplace_back("gantt", "gantt"); 
+            variants2.emplace_back("text", "text"); 
+            variants2.emplace_back("csv", "CSV"); 
+            variants2.emplace_back("json_flot", "JSON"); 
+
+            RequireSelection(out, e, "out", "and show", variants2); 
+            if (outFormat == "csv") { 
                 TString sep = e.Get("sep")? e.Get("sep"): TString("\t");
-                out.Clear();
-                out << NMonitoring::HTTPOKTEXT;
-                out << ToCsv(data, sep, e.Get("head") != "n");
-            } else if (outFormat == "html") {
+                out.Clear(); 
+                out << NMonitoring::HTTPOKTEXT; 
+                out << ToCsv(data, sep, e.Get("head") != "n"); 
+            } else if (outFormat == "html") { 
                 TString selectors = out.Str();
-                out.Clear();
-                WWW_HTML(out) {
-                    // Wrap selectors with navbar
-                    { TSelectorsContainer sc(out);
-                        out << selectors;
-                    }
-                    out << ToHtml(data);
-                }
-            } else if (outFormat == "json_flot") {
-                SeriesSelectors(out, e, "xn", "yns", data);
-                out.Clear();
-                out << NMonitoring::HTTPOKJSON;
+                out.Clear(); 
+                WWW_HTML(out) { 
+                    // Wrap selectors with navbar 
+                    { TSelectorsContainer sc(out); 
+                        out << selectors; 
+                    } 
+                    out << ToHtml(data); 
+                } 
+            } else if (outFormat == "json_flot") { 
+                SeriesSelectors(out, e, "xn", "yns", data); 
+                out.Clear(); 
+                out << NMonitoring::HTTPOKJSON; 
                 out << ToJsonFlot(data, xn, SplitString(e.Get("yns"), ":"));
-            } else if (outFormat == "flot") {
-                SeriesSelectors(out, e, "xn", "yns", data);
+            } else if (outFormat == "flot") { 
+                SeriesSelectors(out, e, "xn", "yns", data); 
                 TString selectors = out.Str();
-
+ 
                 TVector<TString> ynos = SplitString(e.Get("yns"), ":");
-                out.Clear();
-                out << NMonitoring::HTTPOKHTML;
-                out << "<!DOCTYPE html>" << Endl;
-                HTML(out) {
-                    HTML_TAG() {
-                        HEAD() {
-                            out << NResource::Find("lwtrace/mon/static/analytics.header.html") << Endl;
-                            out <<
-                            "<script type=\"text/javascript\">\n"
-                            "$(function() {\n"
-                            "    var dataurl = \"" << EscapeJSONString(MakeUrl(e, "out", "json_flot")) << "\";\n"
-                            "    var refreshPeriod = " << refresh << ";\n"
-                            "    var xn = \"" << ParseName(xn) << "\";\n"
-                            "    var navigate = true;\n"
-                            << NResource::Find("lwtrace/mon/static/analytics.js") <<
-                            "});\n"
-                            "</script>\n"
-                            ;
-                        }
-                        BODY() {
-                            // Wrap selectors with navbar
-                            { TSelectorsContainer sc(out);
-                                out << selectors;
-                            }
-                            out << NResource::Find("lwtrace/mon/static/analytics.flot.html") << Endl;
-                        }
-                    }
-                }
-            } else if (outFormat == "gantt") {
-                TString selectors = out.Str();
-                out.Clear();
-                out << NMonitoring::HTTPOKHTML;
-                out << "<!DOCTYPE html>" << Endl;
-                HTML(out) {
-                    HTML_TAG() {
-                        HEAD() {
-                            out << NResource::Find("lwtrace/mon/static/analytics.header.html") << Endl;
-                            out <<
-                            "<script type=\"text/javascript\">\n"
-                            "$(function() {\n"
-                            "    var dataurl = \"" << EscapeJSONString(MakeUrl(e, {{"mode", "log"}, {"format", "json2"}, {"gantt",""}})) << "\";\n"
-                            "    var refreshPeriod = " << refresh << ";\n"
-                            "    var xn = \"" << ParseName(xn) << "\";\n"
-                            "    var navigate = true;\n"
-                            << NResource::Find("lwtrace/mon/static/analytics.js") <<
-                            "});\n"
-                            "</script>\n"
-                            ;
-                        }
-                        BODY() {
-                            // Wrap selectors with navbar
-                            { TSelectorsContainer sc(out);
-                                out << selectors;
-                            }
-                            out << NResource::Find("lwtrace/mon/static/analytics.gantt.html") << Endl;
-                        }
-                    }
-                }
+                out.Clear(); 
+                out << NMonitoring::HTTPOKHTML; 
+                out << "<!DOCTYPE html>" << Endl; 
+                HTML(out) { 
+                    HTML_TAG() { 
+                        HEAD() { 
+                            out << NResource::Find("lwtrace/mon/static/analytics.header.html") << Endl; 
+                            out << 
+                            "<script type=\"text/javascript\">\n" 
+                            "$(function() {\n" 
+                            "    var dataurl = \"" << EscapeJSONString(MakeUrl(e, "out", "json_flot")) << "\";\n" 
+                            "    var refreshPeriod = " << refresh << ";\n" 
+                            "    var xn = \"" << ParseName(xn) << "\";\n" 
+                            "    var navigate = true;\n" 
+                            << NResource::Find("lwtrace/mon/static/analytics.js") << 
+                            "});\n" 
+                            "</script>\n" 
+                            ; 
+                        } 
+                        BODY() { 
+                            // Wrap selectors with navbar 
+                            { TSelectorsContainer sc(out); 
+                                out << selectors; 
+                            } 
+                            out << NResource::Find("lwtrace/mon/static/analytics.flot.html") << Endl; 
+                        } 
+                    } 
+                } 
+            } else if (outFormat == "gantt") { 
+                TString selectors = out.Str(); 
+                out.Clear(); 
+                out << NMonitoring::HTTPOKHTML; 
+                out << "<!DOCTYPE html>" << Endl; 
+                HTML(out) { 
+                    HTML_TAG() { 
+                        HEAD() { 
+                            out << NResource::Find("lwtrace/mon/static/analytics.header.html") << Endl; 
+                            out << 
+                            "<script type=\"text/javascript\">\n" 
+                            "$(function() {\n" 
+                            "    var dataurl = \"" << EscapeJSONString(MakeUrl(e, {{"mode", "log"}, {"format", "json2"}, {"gantt",""}})) << "\";\n" 
+                            "    var refreshPeriod = " << refresh << ";\n" 
+                            "    var xn = \"" << ParseName(xn) << "\";\n" 
+                            "    var navigate = true;\n" 
+                            << NResource::Find("lwtrace/mon/static/analytics.js") << 
+                            "});\n" 
+                            "</script>\n" 
+                            ; 
+                        } 
+                        BODY() { 
+                            // Wrap selectors with navbar 
+                            { TSelectorsContainer sc(out); 
+                                out << selectors; 
+                            } 
+                            out << NResource::Find("lwtrace/mon/static/analytics.gantt.html") << Endl; 
+                        } 
+                    } 
+                } 
             } else if (outFormat = "text") {
-                out << " <input type='text' id='logsLimit' size='2' placeholder='Limit'>" << Endl;
-                out <<
+                out << " <input type='text' id='logsLimit' size='2' placeholder='Limit'>" << Endl; 
+                out << 
                     R"END(<script>
                     {
                         var url = new URL(window.location.href);
@@ -4468,7 +4468,7 @@ private:
                 HTML(out) {
                     HTML_TAG() {
                         HEAD() {
-                            out << NResource::Find("lwtrace/mon/static/analytics.header.html") << Endl;
+                            out << NResource::Find("lwtrace/mon/static/analytics.header.html") << Endl; 
                         }
                         BODY() {
                             // Wrap selectors with navbar
@@ -4511,213 +4511,213 @@ private:
                         }
                     }
                 }
-            }
-        }
-    }
-
+            } 
+        } 
+    } 
+ 
     TDuration GetGetTimeout(const NMonitoring::IMonHttpRequest& request)
-    {
-        return (request.GetParams().Has("timeout")?
-                TDuration::Seconds(FromString<double>(request.GetParams().Get("timeout"))):
-                TDuration::Max());
-    }
-
+    { 
+        return (request.GetParams().Has("timeout")? 
+                TDuration::Seconds(FromString<double>(request.GetParams().Get("timeout"))): 
+                TDuration::Max()); 
+    } 
+ 
     void PostNew(const NMonitoring::IMonHttpRequest& request, IOutputStream& out)
-    {
-        WWW_CHECK(request.GetPostParams().Has("id"), "POST parameter 'id' is not specified");
+    { 
+        WWW_CHECK(request.GetPostParams().Has("id"), "POST parameter 'id' is not specified"); 
         const TString& id = request.GetPostParams().Get("id");
-        bool ui = (request.GetParams().Get("ui") == "y");
-        TDuration timeout = GetGetTimeout(request);
-        if (!CheckAdHocTrace(id, timeout)) {
-            NLWTrace::TQuery query;
+        bool ui = (request.GetParams().Get("ui") == "y"); 
+        TDuration timeout = GetGetTimeout(request); 
+        if (!CheckAdHocTrace(id, timeout)) { 
+            NLWTrace::TQuery query; 
             TString queryStr = request.GetPostParams().Get("query");
-            if (!ui) {
-                queryStr = Base64Decode(queryStr); // Needed for trace.sh (historically)
-            }
-            WWW_CHECK(queryStr, "Empty trace query");
-            bool parsed = NProtoBuf::TextFormat::ParseFromString(queryStr, &query);
-            WWW_CHECK(parsed, "Trace query text protobuf parse failed"); // TODO[serxa]: report error line/col and message
-            TraceMngr->New(id, query);
-            Cleaner.Postpone(id, timeout, false);
-        } else {
+            if (!ui) { 
+                queryStr = Base64Decode(queryStr); // Needed for trace.sh (historically) 
+            } 
+            WWW_CHECK(queryStr, "Empty trace query"); 
+            bool parsed = NProtoBuf::TextFormat::ParseFromString(queryStr, &query); 
+            WWW_CHECK(parsed, "Trace query text protobuf parse failed"); // TODO[serxa]: report error line/col and message 
+            TraceMngr->New(id, query); 
+            Cleaner.Postpone(id, timeout, false); 
+        } else { 
             WWW_CHECK(!request.GetPostParams().Has("query"), "trace id '%s' is reserved for ad-hoc traces", id.data());
-        }
-        if (ui) {
-            WWW_HTML(out) {
-                out <<
-                "<div class=\"jumbotron alert-success\">"
-                "<h2>Trace created successfully</h2>"
-                "</div>"
-                "<script type=\"text/javascript\">\n"
-                "$(function() {\n"
-                "    setTimeout(function() {"
-                "        window.location.replace('?');"
-                "    }, 1000);"
-                "});\n"
-                "</script>\n";
-            }
-        } else {
-            out << HTTPOKTEXT;
-            out << "OK\n";
-        }
-    }
-
+        } 
+        if (ui) { 
+            WWW_HTML(out) { 
+                out << 
+                "<div class=\"jumbotron alert-success\">" 
+                "<h2>Trace created successfully</h2>" 
+                "</div>" 
+                "<script type=\"text/javascript\">\n" 
+                "$(function() {\n" 
+                "    setTimeout(function() {" 
+                "        window.location.replace('?');" 
+                "    }, 1000);" 
+                "});\n" 
+                "</script>\n"; 
+            } 
+        } else { 
+            out << HTTPOKTEXT; 
+            out << "OK\n"; 
+        } 
+    } 
+ 
     void PostDelete(const NMonitoring::IMonHttpRequest& request, IOutputStream& out)
-    {
-        WWW_CHECK(request.GetPostParams().Has("id"), "POST parameter 'id' is not specified");
+    { 
+        WWW_CHECK(request.GetPostParams().Has("id"), "POST parameter 'id' is not specified"); 
         const TString& id = request.GetPostParams().Get("id");
-        bool ui = (request.GetParams().Get("ui") == "y");
-        TraceMngr->Delete(id);
-        Cleaner.Forget(id);
-        if (ui) {
-            WWW_HTML(out) {
-                out <<
-                "<div class=\"jumbotron alert-success\">"
-                "<h2>Trace deleted successfully</h2>"
-                "</div>"
-                "<script type=\"text/javascript\">\n"
-                "$(function() {\n"
-                "    setTimeout(function() {"
-                "        window.location.replace('?');"
-                "    }, 1000);"
-                "});\n"
-                "</script>\n";
-            }
-        } else {
-            out << HTTPOKTEXT;
-            out << "OK\n";
-        }
-    }
-
+        bool ui = (request.GetParams().Get("ui") == "y"); 
+        TraceMngr->Delete(id); 
+        Cleaner.Forget(id); 
+        if (ui) { 
+            WWW_HTML(out) { 
+                out << 
+                "<div class=\"jumbotron alert-success\">" 
+                "<h2>Trace deleted successfully</h2>" 
+                "</div>" 
+                "<script type=\"text/javascript\">\n" 
+                "$(function() {\n" 
+                "    setTimeout(function() {" 
+                "        window.location.replace('?');" 
+                "    }, 1000);" 
+                "});\n" 
+                "</script>\n"; 
+            } 
+        } else { 
+            out << HTTPOKTEXT; 
+            out << "OK\n"; 
+        } 
+    } 
+ 
     void PostSnapshot(const NMonitoring::IMonHttpRequest& request, IOutputStream& out)
-    {
-        WWW_CHECK(request.GetPostParams().Has("id"), "POST parameter 'id' is not specified");
+    { 
+        WWW_CHECK(request.GetPostParams().Has("id"), "POST parameter 'id' is not specified"); 
         const TString& id = request.GetPostParams().Get("id");
-        bool ui = (request.GetParams().Get("ui") == "y");
-        TInstant now = TInstant::Now();
-
-        TGuard<TMutex> g(SnapshotsMtx);
-        const NLWTrace::TSession* trace = TraceMngr->GetTrace(id);
-        struct tm tm0;
+        bool ui = (request.GetParams().Get("ui") == "y"); 
+        TInstant now = TInstant::Now(); 
+ 
+        TGuard<TMutex> g(SnapshotsMtx); 
+        const NLWTrace::TSession* trace = TraceMngr->GetTrace(id); 
+        struct tm tm0; 
         TString sid = id + Strftime("_%Y%m%d-%H%M%S", now.GmTime(&tm0));
-        TAtomicSharedPtr<NLWTrace::TLogPb>& pbPtr = Snapshots[sid];
-        pbPtr.Reset(new NLWTrace::TLogPb());
-        trace->ToProtobuf(*pbPtr);
-        pbPtr->SetName(sid);
-        if (ui) {
-            WWW_HTML(out) {
-                out <<
-                "<div class=\"jumbotron alert-success\">"
-                "<h2>Snapshot created successfully</h2>"
-                "</div>"
-                "<script type=\"text/javascript\">\n"
-                "$(function() {\n"
-                "    setTimeout(function() {"
-                "        window.location.replace('?');"
-                "    }, 1000);"
-                "});\n"
-                "</script>\n";
-            }
-        } else {
-            out << HTTPOKTEXT;
-            out << "OK\n";
-        }
-    }
-
+        TAtomicSharedPtr<NLWTrace::TLogPb>& pbPtr = Snapshots[sid]; 
+        pbPtr.Reset(new NLWTrace::TLogPb()); 
+        trace->ToProtobuf(*pbPtr); 
+        pbPtr->SetName(sid); 
+        if (ui) { 
+            WWW_HTML(out) { 
+                out << 
+                "<div class=\"jumbotron alert-success\">" 
+                "<h2>Snapshot created successfully</h2>" 
+                "</div>" 
+                "<script type=\"text/javascript\">\n" 
+                "$(function() {\n" 
+                "    setTimeout(function() {" 
+                "        window.location.replace('?');" 
+                "    }, 1000);" 
+                "});\n" 
+                "</script>\n"; 
+            } 
+        } else { 
+            out << HTTPOKTEXT; 
+            out << "OK\n"; 
+        } 
+    } 
+ 
     void PostSetTimeout(const NMonitoring::IMonHttpRequest& request, IOutputStream& out)
-    {
-        WWW_CHECK(request.GetPostParams().Has("id"), "POST parameter 'id' is not specified");
+    { 
+        WWW_CHECK(request.GetPostParams().Has("id"), "POST parameter 'id' is not specified"); 
         const TString& id = request.GetPostParams().Get("id");
-        TDuration timeout = GetGetTimeout(request);
-        bool ui = (request.GetParams().Get("ui") == "y");
-        Cleaner.Postpone(id, timeout, true);
-        if (ui) {
-            WWW_HTML(out) {
-                out <<
-                "<div class=\"jumbotron alert-success\">"
-                "<h2>Timeout changed successfully</h2>"
-                "</div>"
-                "<script type=\"text/javascript\">\n"
-                "$(function() {\n"
-                "    setTimeout(function() {"
-                "        window.location.replace('?');"
-                "    }, 1000);"
-                "});\n"
-                "</script>\n";
-            }
-        } else {
-            out << HTTPOKTEXT;
-            out << "OK\n";
-        }
-    }
+        TDuration timeout = GetGetTimeout(request); 
+        bool ui = (request.GetParams().Get("ui") == "y"); 
+        Cleaner.Postpone(id, timeout, true); 
+        if (ui) { 
+            WWW_HTML(out) { 
+                out << 
+                "<div class=\"jumbotron alert-success\">" 
+                "<h2>Timeout changed successfully</h2>" 
+                "</div>" 
+                "<script type=\"text/javascript\">\n" 
+                "$(function() {\n" 
+                "    setTimeout(function() {" 
+                "        window.location.replace('?');" 
+                "    }, 1000);" 
+                "});\n" 
+                "</script>\n"; 
+            } 
+        } else { 
+            out << HTTPOKTEXT; 
+            out << "OK\n"; 
+        } 
+    } 
 
     void RegisterDashboard(const TString& dashConfig) {
         g_DashboardRegistry.Register(dashConfig);
     }
 
-private:
-    // Returns true iff trace is ad-hoc and ensures trace is created
+private: 
+    // Returns true iff trace is ad-hoc and ensures trace is created 
     bool CheckAdHocTrace(const TString& id, TDuration timeout)
-    {
-        TAdHocTraceConfig cfg;
-        if (cfg.ParseId(id)) {
-            if (!TraceMngr->HasTrace(id)) {
-                TraceMngr->New(id, cfg.Query());
-            }
-            Cleaner.Postpone(id, timeout, false);
-            return true;
-        }
-        return false;
-    }
+    { 
+        TAdHocTraceConfig cfg; 
+        if (cfg.ParseId(id)) { 
+            if (!TraceMngr->HasTrace(id)) { 
+                TraceMngr->New(id, cfg.Query()); 
+            } 
+            Cleaner.Postpone(id, timeout, false); 
+            return true; 
+        } 
+        return false; 
+    } 
 };
 
-void RegisterPages(NMonitoring::TMonService2* mon, bool allowUnsafe) {
+void RegisterPages(NMonitoring::TMonService2* mon, bool allowUnsafe) { 
     THolder<NLwTraceMonPage::TLWTraceMonPage> p = MakeHolder<NLwTraceMonPage::TLWTraceMonPage>(allowUnsafe);
-    mon->Register(p.Release());
-
-#define WWW_STATIC_FILE(file, type) \
-        mon->Register(new TResourceMonPage(file, file, NMonitoring::TResourceMonPage::type));
-    WWW_STATIC_FILE("lwtrace/mon/static/common.css", CSS);
-    WWW_STATIC_FILE("lwtrace/mon/static/common.js", JAVASCRIPT);
-    WWW_STATIC_FILE("lwtrace/mon/static/css/bootstrap.min.css", CSS);
-    WWW_STATIC_FILE("lwtrace/mon/static/css/d3-gantt.css", CSS);
-    WWW_STATIC_FILE("lwtrace/mon/static/css/jquery.treegrid.css", CSS);
-    WWW_STATIC_FILE("lwtrace/mon/static/analytics.css", CSS);
-    WWW_STATIC_FILE("lwtrace/mon/static/fonts/glyphicons-halflings-regular.eot", FONT_EOT);
-    WWW_STATIC_FILE("lwtrace/mon/static/fonts/glyphicons-halflings-regular.svg", SVG);
-    WWW_STATIC_FILE("lwtrace/mon/static/fonts/glyphicons-halflings-regular.ttf", FONT_TTF);
-    WWW_STATIC_FILE("lwtrace/mon/static/fonts/glyphicons-halflings-regular.woff2", FONT_WOFF2);
-    WWW_STATIC_FILE("lwtrace/mon/static/fonts/glyphicons-halflings-regular.woff", FONT_WOFF);
-    WWW_STATIC_FILE("lwtrace/mon/static/img/collapse.png", PNG);
-    WWW_STATIC_FILE("lwtrace/mon/static/img/expand.png", PNG);
-    WWW_STATIC_FILE("lwtrace/mon/static/img/file.png", PNG);
-    WWW_STATIC_FILE("lwtrace/mon/static/img/folder.png", PNG);
-    WWW_STATIC_FILE("lwtrace/mon/static/js/bootstrap.min.js", JAVASCRIPT);
-    WWW_STATIC_FILE("lwtrace/mon/static/js/d3.v4.min.js", JAVASCRIPT);
-    WWW_STATIC_FILE("lwtrace/mon/static/js/d3-gantt.js", JAVASCRIPT);
-    WWW_STATIC_FILE("lwtrace/mon/static/js/d3-tip-0.8.0-alpha.1.js", JAVASCRIPT);
-    WWW_STATIC_FILE("lwtrace/mon/static/js/filesaver.min.js", JAVASCRIPT);
-    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.flot.extents.js", JAVASCRIPT);
-    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.flot.min.js", JAVASCRIPT);
-    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.flot.navigate.min.js", JAVASCRIPT);
-    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.flot.selection.min.js", JAVASCRIPT);
-    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.min.js", JAVASCRIPT);
-    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.treegrid.bootstrap3.js", JAVASCRIPT);
-    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.treegrid.min.js", JAVASCRIPT);
-    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.url.min.js", JAVASCRIPT);
-#undef WWW_STATIC_FILE
+    mon->Register(p.Release()); 
+ 
+#define WWW_STATIC_FILE(file, type) \ 
+        mon->Register(new TResourceMonPage(file, file, NMonitoring::TResourceMonPage::type)); 
+    WWW_STATIC_FILE("lwtrace/mon/static/common.css", CSS); 
+    WWW_STATIC_FILE("lwtrace/mon/static/common.js", JAVASCRIPT); 
+    WWW_STATIC_FILE("lwtrace/mon/static/css/bootstrap.min.css", CSS); 
+    WWW_STATIC_FILE("lwtrace/mon/static/css/d3-gantt.css", CSS); 
+    WWW_STATIC_FILE("lwtrace/mon/static/css/jquery.treegrid.css", CSS); 
+    WWW_STATIC_FILE("lwtrace/mon/static/analytics.css", CSS); 
+    WWW_STATIC_FILE("lwtrace/mon/static/fonts/glyphicons-halflings-regular.eot", FONT_EOT); 
+    WWW_STATIC_FILE("lwtrace/mon/static/fonts/glyphicons-halflings-regular.svg", SVG); 
+    WWW_STATIC_FILE("lwtrace/mon/static/fonts/glyphicons-halflings-regular.ttf", FONT_TTF); 
+    WWW_STATIC_FILE("lwtrace/mon/static/fonts/glyphicons-halflings-regular.woff2", FONT_WOFF2); 
+    WWW_STATIC_FILE("lwtrace/mon/static/fonts/glyphicons-halflings-regular.woff", FONT_WOFF); 
+    WWW_STATIC_FILE("lwtrace/mon/static/img/collapse.png", PNG); 
+    WWW_STATIC_FILE("lwtrace/mon/static/img/expand.png", PNG); 
+    WWW_STATIC_FILE("lwtrace/mon/static/img/file.png", PNG); 
+    WWW_STATIC_FILE("lwtrace/mon/static/img/folder.png", PNG); 
+    WWW_STATIC_FILE("lwtrace/mon/static/js/bootstrap.min.js", JAVASCRIPT); 
+    WWW_STATIC_FILE("lwtrace/mon/static/js/d3.v4.min.js", JAVASCRIPT); 
+    WWW_STATIC_FILE("lwtrace/mon/static/js/d3-gantt.js", JAVASCRIPT); 
+    WWW_STATIC_FILE("lwtrace/mon/static/js/d3-tip-0.8.0-alpha.1.js", JAVASCRIPT); 
+    WWW_STATIC_FILE("lwtrace/mon/static/js/filesaver.min.js", JAVASCRIPT); 
+    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.flot.extents.js", JAVASCRIPT); 
+    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.flot.min.js", JAVASCRIPT); 
+    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.flot.navigate.min.js", JAVASCRIPT); 
+    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.flot.selection.min.js", JAVASCRIPT); 
+    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.min.js", JAVASCRIPT); 
+    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.treegrid.bootstrap3.js", JAVASCRIPT); 
+    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.treegrid.min.js", JAVASCRIPT); 
+    WWW_STATIC_FILE("lwtrace/mon/static/js/jquery.url.min.js", JAVASCRIPT); 
+#undef WWW_STATIC_FILE 
 }
-
-NLWTrace::TProbeRegistry& ProbeRegistry() {
-    return g_Probes;
-}
-
-NLWTrace::TManager& TraceManager(bool allowUnsafe) {
-    return allowUnsafe? g_UnsafeManager: g_SafeManager;
-}
-
+ 
+NLWTrace::TProbeRegistry& ProbeRegistry() { 
+    return g_Probes; 
+} 
+ 
+NLWTrace::TManager& TraceManager(bool allowUnsafe) { 
+    return allowUnsafe? g_UnsafeManager: g_SafeManager; 
+} 
+ 
 TDashboardRegistry& DashboardRegistry() {
     return g_DashboardRegistry;
 }
 
-} // namespace NLwTraceMonPage
+} // namespace NLwTraceMonPage 
diff --git a/library/cpp/lwtrace/mon/mon_lwtrace.h b/library/cpp/lwtrace/mon/mon_lwtrace.h
index 8030f6ea61..3c239d478c 100644
--- a/library/cpp/lwtrace/mon/mon_lwtrace.h
+++ b/library/cpp/lwtrace/mon/mon_lwtrace.h
@@ -1,27 +1,27 @@
 #pragma once
-
-#include <library/cpp/lwtrace/protos/lwtrace.pb.h>
+ 
+#include <library/cpp/lwtrace/protos/lwtrace.pb.h> 
 #include <library/cpp/monlib/service/monservice.h>
 #include <library/cpp/lwtrace/control.h>
 
-#include <util/generic/vector.h>
-
-namespace NLwTraceMonPage {
-
+#include <util/generic/vector.h> 
+ 
+namespace NLwTraceMonPage { 
+ 
 class TDashboardRegistry {
-    THashMap<TString, NLWTrace::TDashboard> Dashboards;
+    THashMap<TString, NLWTrace::TDashboard> Dashboards; 
     TMutex Mutex;
 public:
-    void Register(const NLWTrace::TDashboard& dashboard);
-    void Register(const TVector<NLWTrace::TDashboard>& dashboards);
+    void Register(const NLWTrace::TDashboard& dashboard); 
+    void Register(const TVector<NLWTrace::TDashboard>& dashboards); 
     void Register(const TString& dashText);
-    bool Get(const TString& name, NLWTrace::TDashboard& dash);
+    bool Get(const TString& name, NLWTrace::TDashboard& dash); 
     void Output(TStringStream& ss);
 };
 
-void RegisterPages(NMonitoring::TMonService2* mon, bool allowUnsafe = false);
-NLWTrace::TProbeRegistry& ProbeRegistry(); // This is not safe to use this function before main()
-NLWTrace::TManager& TraceManager(bool allowUnsafe = false);
+void RegisterPages(NMonitoring::TMonService2* mon, bool allowUnsafe = false); 
+NLWTrace::TProbeRegistry& ProbeRegistry(); // This is not safe to use this function before main() 
+NLWTrace::TManager& TraceManager(bool allowUnsafe = false); 
 TDashboardRegistry& DashboardRegistry();
-
-} // namespace NLwTraceMonPage
+ 
+} // namespace NLwTraceMonPage 
diff --git a/library/cpp/lwtrace/mon/static/analytics.css b/library/cpp/lwtrace/mon/static/analytics.css
index 1b0c268e43..916fb9136e 100644
--- a/library/cpp/lwtrace/mon/static/analytics.css
+++ b/library/cpp/lwtrace/mon/static/analytics.css
@@ -1,68 +1,68 @@
-#header {
-	position: relative;
-	width: 900px;
-	margin: auto;
-}
-
-#header h2 {
-	margin-left: 10px;
-	vertical-align: middle;
-	font-size: 42px;
-	font-weight: bold;
-	text-decoration: none;
-	color: #000;
-}
-
-#errmsg {
-        width: 95vw;
-	margin: 0 auto;
-	padding: 10px;
-}
-
-#footer {
-	margin-top: 25px;
-	margin-bottom: 10px;
-	text-align: center;
-	font-size: 12px;
-	color: #999;
-}
-
-.chart-container {
-        box-sizing: border-box;
-        width: 90vw;
-        height: 70vh;
-        padding: 10px 0px 0px 0px;
-        margin: 15px auto 30px auto;
-}
-
-#playback div { display: inline-block; }
-#playback input { display: inline-block; }
-
-.chart-placeholder {
-	width: 100%;
-	height: 100%;
-	font-size: 14px;
-	line-height: 1.2em;
-}
-
-.legend table {
-	border-spacing: 5px;
-}
-
-.body-fullscreen {
-        width: 100%;
-        height: 100%;
-        padding: 0;
-        margin: 0;
-}
-
-.container-fullscreen {
-        width: 100vw;
-        height: 100vh;
-        margin: 0;
-}
-
-.toolbar-fullscreen {
-        display:none;
-        margin: 0;
-}
+#header { 
+	position: relative; 
+	width: 900px; 
+	margin: auto; 
+} 
+ 
+#header h2 { 
+	margin-left: 10px; 
+	vertical-align: middle; 
+	font-size: 42px; 
+	font-weight: bold; 
+	text-decoration: none; 
+	color: #000; 
+} 
+ 
+#errmsg { 
+        width: 95vw; 
+	margin: 0 auto; 
+	padding: 10px; 
+} 
+ 
+#footer { 
+	margin-top: 25px; 
+	margin-bottom: 10px; 
+	text-align: center; 
+	font-size: 12px; 
+	color: #999; 
+} 
+ 
+.chart-container { 
+        box-sizing: border-box; 
+        width: 90vw; 
+        height: 70vh; 
+        padding: 10px 0px 0px 0px; 
+        margin: 15px auto 30px auto; 
+} 
+ 
+#playback div { display: inline-block; } 
+#playback input { display: inline-block; } 
+ 
+.chart-placeholder { 
+	width: 100%; 
+	height: 100%; 
+	font-size: 14px; 
+	line-height: 1.2em; 
+} 
+ 
+.legend table { 
+	border-spacing: 5px; 
+} 
+ 
+.body-fullscreen { 
+        width: 100%; 
+        height: 100%; 
+        padding: 0; 
+        margin: 0; 
+} 
+ 
+.container-fullscreen { 
+        width: 100vw; 
+        height: 100vh; 
+        margin: 0; 
+} 
+ 
+.toolbar-fullscreen { 
+        display:none; 
+        margin: 0; 
+} 
diff --git a/library/cpp/lwtrace/mon/static/analytics.flot.html b/library/cpp/lwtrace/mon/static/analytics.flot.html
index ea0a2880a5..9f2a2264fd 100644
--- a/library/cpp/lwtrace/mon/static/analytics.flot.html
+++ b/library/cpp/lwtrace/mon/static/analytics.flot.html
@@ -1,49 +1,49 @@
-<div class="container-fluid" id="toolbar" style="margin:10px;width:92vw">
-    <div class="pull-right" id="playback">
-        <div class="btn-group" style="margin-right:40px">
-            <button type="button" class="btn btn-default" id="pb-linesfill">linesfill</button>
-            <button type="button" class="btn btn-default" id="pb-linessteps">linessteps</button>
-            <button type="button" class="btn btn-default" id="pb-linesshow">linesshow</button>
-            <button type="button" class="btn btn-default" id="pb-pointsshow">pointsshow</button>
-        </div>
-        <div class="btn-group" style="margin-right:40px">
-            <button type="button" class="btn btn-default" id="pb-export">Export</button>
-            <button type="button" class="btn btn-default" id="pb-import" data-toggle="modal" data-target="#importModal">Import</button>
-        </div>
-        <button type="button" class="btn btn-default hidden" id="pb-unselect">unselect</button>
-        <button type="button" class="btn" id="pb-fullscreen">Fullscreen</button>
-        <button type="button" class="btn" id="pb-autoscale" title="Enforce axis min/max value to be equal to min/max value of data points">Autoscale</button>
-        <button type="button" class="btn" id="pb-legendshow">Legend</button>
-        <button type="button" class="btn" id="pb-cutts" title="Cuts old items in every trace log to make them start from the same instant">Cut Tails</button>
-        <button type="button" class="btn btn-default" id="pb-pause"><strong>||</strong></button>
-    </div>
-
-    <div style="display:inline-block">
-        <div style="display: inline-block">
-            <span id="errmsg2" style="display:none"></span>
-        </div>
-    </div>
-</div>
-
-<div class="chart-container" id="container">
-    <div id="placeholder" class="chart-placeholder"></div>
-</div>
-
-<div class="modal fade" id="importModal" tabindex="-1" role="dialog" aria-labelledby="importModalLabel">
-    <div class="modal-dialog" role="document">
-        <div class="modal-content">
-            <div class="modal-header">
-                <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span
-                        aria-hidden="true">&times;</span></button>
-                <h4 class="modal-title" id="importModalLabel">Import chart Data</h4>
-            </div>
-            <div class="modal-body">
-                <input type="file" id="importFiles" value="Import" /><br />
-            </div>
-            <div class="modal-footer">
-                <button type="button" class="btn btn-default" data-dismiss="modal">Cancel</button>
-                <button type="button" class="btn btn-primary" id="btnDoImport">Import</button>
-            </div>
-        </div>
-    </div>
-</div>
+<div class="container-fluid" id="toolbar" style="margin:10px;width:92vw"> 
+    <div class="pull-right" id="playback"> 
+        <div class="btn-group" style="margin-right:40px"> 
+            <button type="button" class="btn btn-default" id="pb-linesfill">linesfill</button> 
+            <button type="button" class="btn btn-default" id="pb-linessteps">linessteps</button> 
+            <button type="button" class="btn btn-default" id="pb-linesshow">linesshow</button> 
+            <button type="button" class="btn btn-default" id="pb-pointsshow">pointsshow</button> 
+        </div> 
+        <div class="btn-group" style="margin-right:40px"> 
+            <button type="button" class="btn btn-default" id="pb-export">Export</button> 
+            <button type="button" class="btn btn-default" id="pb-import" data-toggle="modal" data-target="#importModal">Import</button> 
+        </div> 
+        <button type="button" class="btn btn-default hidden" id="pb-unselect">unselect</button> 
+        <button type="button" class="btn" id="pb-fullscreen">Fullscreen</button> 
+        <button type="button" class="btn" id="pb-autoscale" title="Enforce axis min/max value to be equal to min/max value of data points">Autoscale</button> 
+        <button type="button" class="btn" id="pb-legendshow">Legend</button> 
+        <button type="button" class="btn" id="pb-cutts" title="Cuts old items in every trace log to make them start from the same instant">Cut Tails</button> 
+        <button type="button" class="btn btn-default" id="pb-pause"><strong>||</strong></button> 
+    </div> 
+ 
+    <div style="display:inline-block"> 
+        <div style="display: inline-block"> 
+            <span id="errmsg2" style="display:none"></span> 
+        </div> 
+    </div> 
+</div> 
+ 
+<div class="chart-container" id="container"> 
+    <div id="placeholder" class="chart-placeholder"></div> 
+</div> 
+ 
+<div class="modal fade" id="importModal" tabindex="-1" role="dialog" aria-labelledby="importModalLabel"> 
+    <div class="modal-dialog" role="document"> 
+        <div class="modal-content"> 
+            <div class="modal-header"> 
+                <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span 
+                        aria-hidden="true">&times;</span></button> 
+                <h4 class="modal-title" id="importModalLabel">Import chart Data</h4> 
+            </div> 
+            <div class="modal-body"> 
+                <input type="file" id="importFiles" value="Import" /><br /> 
+            </div> 
+            <div class="modal-footer"> 
+                <button type="button" class="btn btn-default" data-dismiss="modal">Cancel</button> 
+                <button type="button" class="btn btn-primary" id="btnDoImport">Import</button> 
+            </div> 
+        </div> 
+    </div> 
+</div> 
diff --git a/library/cpp/lwtrace/mon/static/analytics.gantt.html b/library/cpp/lwtrace/mon/static/analytics.gantt.html
index cf41008900..9b846510c9 100644
--- a/library/cpp/lwtrace/mon/static/analytics.gantt.html
+++ b/library/cpp/lwtrace/mon/static/analytics.gantt.html
@@ -1,26 +1,26 @@
-<div id="placeholder" class="chart-placeholder"></div>
-
-<div class="form-group"><label class="col-sm-1 control-label" for="textareaGantt">Config</label>
-    <div class="col-sm-11">
-        <textarea class="form-control" id="textareaGantt" name="gantt" rows="5">
-{
- "bands": [
-  {
-   "t1": "_thrRTime[0]",
-   "t2": "_thrRTime[-1]",
-   "band": "_thread",
-   "color": "1",
-   "colorScale": "colors1"
-  }
- ],
- "scales": {
-  "colors1": "linear().domain([-1,0,1]).range(['red','black','green'])",
-  "colors2": "ordinal().domain(['VALUE1','VALUE2']).range(['blue','yellow'])"
- }
-}
-        </textarea>
-    </div>
-</div>
-<div class="form-group">
-    <div class="col-sm-offset-1 col-sm-11"><button class="btn btn-default" id="gantt-apply">Apply</button></div>
-</div>
+<div id="placeholder" class="chart-placeholder"></div> 
+ 
+<div class="form-group"><label class="col-sm-1 control-label" for="textareaGantt">Config</label> 
+    <div class="col-sm-11"> 
+        <textarea class="form-control" id="textareaGantt" name="gantt" rows="5"> 
+{ 
+ "bands": [ 
+  { 
+   "t1": "_thrRTime[0]", 
+   "t2": "_thrRTime[-1]", 
+   "band": "_thread", 
+   "color": "1", 
+   "colorScale": "colors1" 
+  } 
+ ], 
+ "scales": { 
+  "colors1": "linear().domain([-1,0,1]).range(['red','black','green'])", 
+  "colors2": "ordinal().domain(['VALUE1','VALUE2']).range(['blue','yellow'])" 
+ } 
+} 
+        </textarea> 
+    </div> 
+</div> 
+<div class="form-group"> 
+    <div class="col-sm-offset-1 col-sm-11"><button class="btn btn-default" id="gantt-apply">Apply</button></div> 
+</div> 
diff --git a/library/cpp/lwtrace/mon/static/analytics.header.html b/library/cpp/lwtrace/mon/static/analytics.header.html
index 0a6790e232..53d080f41f 100644
--- a/library/cpp/lwtrace/mon/static/analytics.header.html
+++ b/library/cpp/lwtrace/mon/static/analytics.header.html
@@ -1,21 +1,21 @@
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<link rel="stylesheet" href="lwtrace/mon/static/analytics.css" type="text/css">
-<link rel="stylesheet" href="lwtrace/mon/static/css/d3-gantt.css" type="text/css">
-<link rel="stylesheet" href="lwtrace/mon/static/css/bootstrap.min.css">
-<link rel="stylesheet" href="lwtrace/mon/static/css/jquery.treegrid.css">
-<link rel="stylesheet" href="lwtrace/mon/static/common.css">
-
-<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.min.js"></script>
-<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.url.min.js"></script>
-<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.flot.min.js"></script>
-<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.flot.navigate.min.js"></script>
-<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.flot.extents.js"></script>
-<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.flot.selection.min.js"></script>
-<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.treegrid.min.js"></script>
-<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.treegrid.bootstrap3.js"></script>
-<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/bootstrap.min.js"></script>
-<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/filesaver.min.js"></script>
-<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/d3.v4.min.js"></script>
-<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/d3-tip-0.8.0-alpha.1.js"></script>
-<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/d3-gantt.js"></script>
-<script language="javascript" type="text/javascript" src="lwtrace/mon/static/common.js"></script>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 
+<link rel="stylesheet" href="lwtrace/mon/static/analytics.css" type="text/css"> 
+<link rel="stylesheet" href="lwtrace/mon/static/css/d3-gantt.css" type="text/css"> 
+<link rel="stylesheet" href="lwtrace/mon/static/css/bootstrap.min.css"> 
+<link rel="stylesheet" href="lwtrace/mon/static/css/jquery.treegrid.css"> 
+<link rel="stylesheet" href="lwtrace/mon/static/common.css"> 
+ 
+<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.min.js"></script> 
+<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.url.min.js"></script> 
+<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.flot.min.js"></script> 
+<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.flot.navigate.min.js"></script> 
+<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.flot.extents.js"></script> 
+<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.flot.selection.min.js"></script> 
+<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.treegrid.min.js"></script> 
+<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/jquery.treegrid.bootstrap3.js"></script> 
+<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/bootstrap.min.js"></script> 
+<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/filesaver.min.js"></script> 
+<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/d3.v4.min.js"></script> 
+<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/d3-tip-0.8.0-alpha.1.js"></script> 
+<script language="javascript" type="text/javascript" src="lwtrace/mon/static/js/d3-gantt.js"></script> 
+<script language="javascript" type="text/javascript" src="lwtrace/mon/static/common.js"></script> 
diff --git a/library/cpp/lwtrace/mon/static/analytics.js b/library/cpp/lwtrace/mon/static/analytics.js
index 7b66cca4c0..85b869869b 100644
--- a/library/cpp/lwtrace/mon/static/analytics.js
+++ b/library/cpp/lwtrace/mon/static/analytics.js
@@ -1,561 +1,561 @@
-/*
- * This code is executed from document ready function
- * Also note that some variable are set from C++ code
- */
-
-var x1 = $.url("?x1");
-var x2 = $.url("?x2");
-var y1 = $.url("?y1");
-var y2 = $.url("?y2");
-
-var gantt = $.url("?gantt");
-var out = $.url("?out");
-
-var linesfill =    $.url("?linesfill")  == "y";
-var linessteps =   $.url("?linessteps") == "y";
-var linesshow =    $.url("?linesshow")  != "n";
-var pointsshow =   $.url("?pointsshow") != "n";
-var autoscale =    $.url("?autoscale")  == "y";
-var legendshow =   $.url("?legendshow") != "n";
-var cutts =        $.url("?cutts")      == "y";
-var fullscreen =   $.url("?fullscreen") == "y";
-var realnames =    $.url("?realnames")  == "y";
-var xzoomoff  =    $.url("?xzoomoff")   == "y";
-var yzoomoff  =    $.url("?yzoomoff")   == "y";
-
-function inIframe() { try { return window.self !== window.top; } catch (e) { return true; } }
-function inDashboard() { return fullscreen && inIframe(); }
-
-// URL management
-function makeUrl(url, queryFunc, hashFunc) {
-    var query = $.url("?", url);
-    var hash = $.url("#", url);
-    if (paused) {
-        query.paused = "y";
-    }
-
-    if (queryFunc) { queryFunc(query); }
-    if (hashFunc) { hashFunc(hash); }
-    var queryStr = "";
-    var first = true;
-    for (var k in query) {
-        queryStr += (first? "?": "&") + k + "=" + encodeURIComponent(query[k]);
-        first = false;
-    }
-    var hashStr = "";
-    first = true;
-    for (k in hash) {
-        hashStr += (first? "#": "&") + k + "=" + encodeURIComponent(hash[k]);
-        first = false;
-    }
-    return queryStr + hashStr;
-}
-
-function dataUrl() {
-    return makeUrl(dataurl, function(query) {
-        query.error = "text";
-    });
-}
-
-// Error message popup
-$("<div id='errmsg'></div>").css({
-    position: "absolute",
-    display: "none",
-    border: "1px solid #faa",
-    padding: "2px",
-    "background-color": "#fcc",
-    opacity: 0.80
-}).appendTo("body");
-
-if (out == "gantt") {
-    $("#gantt-apply").click(function() {
-        try {
-            let val = $("#textareaGantt").val().replace(/\s/g, "");
-            JSON.parse(val);
-            window.location.replace(makeUrl($.url(), function(query) {
-                query.gantt = val;
-            }));
-        } catch(e) {
-            $("#errmsg").text("Not valid JSON: " + e)
-            .css({bottom: "5px", left: "25%", width: "50%"})
-            .fadeIn(200);
-        }
-    });
-
-    if (gantt) {
-        // Data fetching and auto-refreshing
-        var fetchCounter = 0;
-        function fetchData() {
-            function onDataReceived(json, textStatus, xhr) {
-                $("#errmsg").hide();
-                logs = json;
-                chart(config, logs, true);
-            }
-
-            function onDataError(xhr, error) {
-                console.log(arguments);
-                $("#errmsg").text("Fetch data error: " + error + (xhr.status == 200? xhr.responseText: ""))
-                .css({bottom: "5px", left: "25%", width: "50%"})
-                .fadeIn(200);
-            }
-
-            if (dataurl) {
-                $.ajax({
-                    url: dataUrl(),
-                    type: "GET",
-                    dataType: "json",
-                    success: function (json, textStatus, xhr) { onDataReceived(json, textStatus, xhr); },
-                    error: onDataError
-                });
-            } else {
-                onDataReceived(datajson, "textStatus", "xhr");
-            }
-
-            // if (fetchPeriod > 0) {
-            //     if (fetchCounter == 0) {
-            //         fetchCounter++;
-            //         setTimeout(function() {
-            //             fetchCounter--;
-            //             if (!paused) {
-            //                 fetchData();
-            //             }
-            //         }, $("#errmsg").is(":visible")? errorPeriod: fetchPeriod);
-            //     }
-            // }
-        }
-
-        try {
-            var config = JSON.parse(gantt);
-            $("#textareaGantt").val(JSON.stringify(config, "\n", " "));
-            let formHeight = 220;
-            var chart = d3.gantt()
-                .height(window.innerHeight - $("#placeholder")[0].getBoundingClientRect().y - window.scrollY - formHeight)
-                .selector("#placeholder");
-            var logs = null;
-            fetchData();
-        } catch(e) {
-            $("#textareaGantt").val(gantt);
-            alert("Not valid JSON: " + e);
-        }
-    }
-} else { // flot
-    // Special options adjustment for fullscreen charts in iframe (solomon dashboards)
-    if (fullscreen) {
-        navigate = false; // Disable navigation to avoid scrolling problems
-        legendshow = false; // Show legend only on hover
-    }
-
-    // Adjust zooming options
-    var xZoomRange = null;
-    var yZoomRange = null;
-    if (xzoomoff) {
-        xZoomRange = false;
-    }
-    if (yzoomoff) {
-        yZoomRange = false;
-    }
-
-    var placeholder =  $("#placeholder");
-    var playback =     $("#playback");
-
-    var data = null;
-    var loaded_data = [];
-    var imported_data = [];
-    var fetchPeriod = refreshPeriod;
-    var errorPeriod = 5000;
-    var playbackPeriod = 500;
-    var abstimestep = 1.0;
-
-    var paused = $.url("?paused")  == "y";
-    var timestep = abstimestep;
-
-    var seriesDescription = {
-        _time: "time",
-        _thread: "thread"
-    }
-
-    function seriesDesc(name) {
-        if (seriesDescription.hasOwnProperty(name)) {
-            return (realnames? "[" + name + "] ": "") + seriesDescription[name];
-        } else {
-            return name;
-        }
-    }
-
-    playback.show();
-
-    var options = {
-        series: {
-            lines: { show: linesshow, fill: linesfill, steps: linessteps},
-            points: { show: pointsshow },
-            shadowSize: 0
-        },
-        xaxis: { zoomRange: xZoomRange },
-        yaxis: { zoomRange: yZoomRange },
-        grid: { clickable: true, hoverable: true },
-        zoom: { interactive: navigate },
-        pan: { interactive: navigate },
-        legend: {
-            show: legendshow,
-            labelFormatter: function(label, series) { return seriesDesc(label) + '(' + seriesDesc(xn) + ')'; }
-        }
-    };
-
-    if (fullscreen) {
-        $("body").attr("class","body-fullscreen");
-        $("#container").attr("class","container-fullscreen");
-        $("#toolbar").attr("class","toolbar-fullscreen");
-        $("#selectors-container").attr("class","toolbar-fullscreen");
-        options.grid.margin = 0;
-    }
-
-    if (x1) { options.xaxis.min = x1; }
-    if (x2) { options.xaxis.max = x2; }
-    if (y1) { options.yaxis.min = y1; }
-    if (y2) { options.yaxis.max = y2; }
-
-    $("<div id='tooltip'></div>").css({
-        position: "absolute",
-        display: "none",
-        border: "1px solid #fdd",
-        padding: "2px",
-        "background-color": "#fee",
-        opacity: 0.80
-    }).appendTo("body");
-
-    // Helper to hide tooltip
-    var lastShow = new Date();
-    var hideCounter = 0;
-    function hideTooltip() {
-        if (hideCounter == 0) {
-            hideCounter++;
-            setTimeout(function() {
-                hideCounter--;
-                if (new Date().getTime() - lastShow.getTime() > 1000) {
-                    $("#tooltip").fadeOut(200);
-                } else if ($("#tooltip").is(":visible")) {
-                    hideTooltip();
-                }
-            }, 200);
-        }
-    }
-
-    // Helper to hide legend
-    var legendLastShow = new Date();
-    var legendHideCounter = 0;
-    function hideLegend() {
-        if (legendHideCounter == 0) {
-            legendHideCounter++;
-            setTimeout(function() {
-                legendHideCounter--;
-                if (new Date().getTime() - legendLastShow.getTime() > 1000) {
-                    options.legend.show = false;
-                    $.plot(placeholder, data, options);
-                } else {
-                    hideLegend();
-                }
-            }, 200);
-        }
-    }
-
-    function onPlotClick(event, pos, item) {
-        // Leave fullscreen on click
-        var nonFullscreenUrl = makeUrl($.url(), function(query) {
-            delete query.fullscreen;
-        });
-        if (inDashboard()) {
-            window.open(nonFullscreenUrl, "_blank");
-        } else if (fullscreen) {
-            window.location.href = nonFullscreenUrl;
-        }
-    }
-
-    function onPlotHover(event, pos, item) {
-        var redraw = false;
-        // Show legend on hover
-        if (fullscreen) {
-            legendLastShow = new Date();
-            if (!options.legend.show) {
-                redraw = true;
-            }
-            options.legend.show = true;
-            hideLegend();
-        }
-
-        // Show names on hover
-        var left = placeholder.position().left;
-        var top = placeholder.position().top;
-        var ttmargin = 10;
-        var ttwidth = $("#tooltip").width();
-        var ttheight = $("#tooltip").height();
-        if (linessteps) {
-            var pts = data[0].data;
-            var idx = 0;
-            for (var i = 0; i < pts.length - 1; i++) {
-                var x1 = pts[i][0];
-                var x2 = pts[i+1][0];
-                if (pos.x >= x1 && (x2 == null || pos.x < x2)) {
-                    idx = i;
-                }
-            }
-            var n = pts[idx][2];
-            var html = (n? "<u><b><center>" + n + "</center></b></u>": "") + "<table><tr><td align=\"right\">" + seriesDesc(xn) + "</td><td>: </td><td>" + pts[idx][3] + "</td></tr>";
-            for (var sid = 0; sid < data.length; sid++) {
-                var series = data[sid];
-                var y = series.data[idx][4];
-                html += "<tr><td align=\"right\">" + seriesDesc(series.label) + "</td><td>: </td><td>" + y + "</td></tr>";
-            }
-            html += "</table>";
-
-            lastShow = new Date();
-            if (pos.pageX < left + placeholder.width() && pos.pageX > left &&
-                pos.pageY < top + placeholder.height() && pos.pageY > top) {
-                $("#tooltip").html(html)
-                .css({top: Math.max(top + ttmargin + 10, pos.pageY - ttheight - 20),
-                    left: Math.max(left + ttmargin + 10, pos.pageX - ttwidth - 20)})
-                .fadeIn(200, "swing", hideTooltip());
-            }
-        } else {
-            if (item) {
-                var idx = item.dataIndex;
-                var n = item.series.data[idx][2];
-                var x = item.series.data[idx][3]; //item.datapoint[0];
-                var y = item.series.data[idx][4]; //item.datapoint[1];
-                $("#tooltip").html((n? n + ": ": "") + seriesDesc(item.series.label) + " = " + y + ", " + seriesDesc(xn) + " = " + x)
-                .css({top: Math.max(top + ttmargin + 10, item.pageY - ttheight - 20),
-                    left: Math.max(left + ttmargin + 10, item.pageX - ttwidth - 20)})
-                .fadeIn(200);
-            } else {
-                $("#tooltip").hide();
-            }
-        }
-
-        // Redraw if required
-        if (redraw) {
-            $.plot(placeholder, data, options);
-        }
-    }
-
-    // Add some more interactivity
-    function onZoomOrPan(event, plot) {
-        var axes = plot.getAxes();
-        options.xaxis.min = axes.xaxis.min;
-        options.xaxis.max = axes.xaxis.max;
-        options.yaxis.min = axes.yaxis.min;
-        options.yaxis.max = axes.yaxis.max;
-    }
-
-    // Bind to events
-    placeholder.bind("plotclick", onPlotClick);
-    placeholder.bind("plothover", onPlotHover);
-    placeholder.bind("plotpan", onZoomOrPan);
-    placeholder.bind("plotzoom", onZoomOrPan);
-
-    // Data fetching and auto-refreshing
-    var fetchCounter = 0;
-    function fetchData() {
-        function onDataReceived(json, textStatus, xhr) {
-            $("#errmsg").hide();
-            if (paused && logs) {
-                return;
-            }
-
-            // Plot fetched data
-            loaded_data = json;
-            data = loaded_data.concat(imported_data);
-
-            if (autoscale) {
-                var xmin = null;
-                var xmax = null;
-                var ymin = null;
-                var ymax = null;
-                for (var sid = 0; sid < data.length; sid++) {
-                    var pts = data[sid].data;
-                    for (var i = 0; i < pts.length; i++) {
-                        var x = pts[i][0];
-                        var y = pts[i][1];
-                        if (x != null && y != null) {
-                            if (xmin == null || x < xmin) { xmin = x; }
-                            if (xmax == null || x > xmax) { xmax = x; }
-                            if (ymin == null || y < ymin) { ymin = y; }
-                            if (ymax == null || y > ymax) { ymax = y; }
-                        }
-                    }
-                }
-                if (xmin != null) { options.xaxis.min = xmin; }
-                if (xmax != null) { options.xaxis.max = xmax; }
-                if (ymin != null) { options.yaxis.min = ymin; }
-                if (ymax != null) { options.yaxis.max = ymax; }
-            }
-            $.plot(placeholder, data, options);
-        }
-
-        function onDataError(xhr, error) {
-            console.log(arguments);
-            $("#errmsg").text("Fetch data error: " + error + (xhr.status == 200? xhr.responseText: ""))
-            .css({bottom: "5px", left: "25%", width: "50%"})
-            .fadeIn(200);
-        }
-
-        if (dataurl) {
-            $.ajax({
-                url: dataUrl(),
-                type: "GET",
-                dataType: "json",
-                success: function (json, textStatus, xhr) { onDataReceived(json, textStatus, xhr); },
-                error: onDataError
-            });
-        } else {
-            onDataReceived(datajson, "textStatus", "xhr");
-        }
-
-        if (fetchPeriod > 0) {
-            if (fetchCounter == 0) {
-                fetchCounter++;
-                setTimeout(function() {
-                    fetchCounter--;
-                    if (!paused) {
-                        fetchData();
-                    }
-                }, $("#errmsg").is(":visible")? errorPeriod: fetchPeriod);
-            }
-        }
-    }
-
-    // Playback control
-    var pb_pause = $("#pb-pause");
-
-    function setActive(btn, active) {
-        if (active) {
-            btn.addClass("btn-primary");
-            btn.removeClass("btn-default");
-        } else {
-            btn.addClass("btn-default");
-            btn.removeClass("btn-primary");
-        }
-    }
-
-    function onPlaybackControl() {
-        setActive(pb_pause, paused);
-        fetchPeriod = refreshPeriod;
-        fetchData();
-    }
-
-    function clickPause(val) {
-        paused = val;
-        onPlaybackControl();
-    }
-
-    pb_pause.click(function() { clickPause(!paused); });
-
-    function addOptionButton(opt, btn, defOn) {
-        setActive(btn, defOn ? $.url("?" + opt) != "n" : $.url("?" + opt) == "y");
-        btn.click(function() {
-            window.location.replace(makeUrl($.url(), function(query) {
-                if (defOn) {
-                    if ($.url("?" + opt) != "n") {
-                        query[opt] = "n";
-                    } else {
-                        delete query[opt];
-                    }
-                } else {
-                    if ($.url("?" + opt) == "y") {
-                        delete query[opt];
-                    } else {
-                        query[opt] = "y";
-                    }
-                }
-            }));
-        });
-    }
-
-    // Options
-    addOptionButton("linesfill", $("#pb-linesfill"), false);
-    addOptionButton("linessteps", $("#pb-linessteps"), false);
-    addOptionButton("linesshow", $("#pb-linesshow"), true);
-    addOptionButton("pointsshow", $("#pb-pointsshow"), true);
-    addOptionButton("legendshow", $("#pb-legendshow"), true);
-    addOptionButton("cutts", $("#pb-cutts"), false);
-    addOptionButton("autoscale", $("#pb-autoscale"), false);
-
-    var pb_fullscreen = $("#pb-fullscreen");
-    setActive(pb_fullscreen, fullscreen);
-    pb_fullscreen.click(function(){
-        window.location.href = makeUrl($.url(), function(query) {
-            if (fullscreen) {
-                delete query.fullscreen;
-            } else {
-                query.fullscreen = "y";
-            }
-        });
-    });
-
-    // Embeded mode (in case there is other stuff on page)
-    function embededMode() {
-        $("#pb-fullscreen").hide();
-        $("#pb-autoscale").hide();
-        $("#pb-legendshow").hide();
-        $("#pb-pause").hide();
-    }
-
-    function enableSelection() {
-        // Redraw chart with selection enabled
-        options.selection = {mode: "x"};
-        var plot = $.plot(placeholder, data, options);
-        if ($.url("?sel_x1") && $.url("?sel_x2")) {
-            plot.setSelection({
-                xaxis: {
-                    from: $.url("?sel_x1") ,
-                    to: $.url("?sel_x2")
-                }
-            });
-        }
-
-        // Create selection hooks
-        placeholder.bind("plotselected", function (event, ranges) {
-            window.location.replace(makeUrl($.url(), function(query) {
-                query.sel_x1 = ranges.xaxis.from;
-                query.sel_x2 = ranges.xaxis.to;
-            }));
-        });
-        placeholder.bind("plotunselected", function (event) {
-            window.location.replace(makeUrl($.url(), function(query) {
-                delete query.sel_x1;
-                delete query.sel_x2;
-            }));
-        });
-
-        // Init and show unselect button
-        $("#pb-unselect").click(function () {
-            plot.clearSelection();
-        });
-        $("#pb-unselect").removeClass("hidden");
-    }
-
-    // Export data
-    var pb_export = $("#pb-export");
-    pb_export.click(function(){
-        var blob = new Blob([JSON.stringify(data)], {type: "application/json;charset=utf-8"});
-        saveAs(blob, "exported.json");
-    });
-
-    // Import data
-    $("#btnDoImport").click(function(){
-        var files = document.getElementById('importFiles').files;
-        if (files.length <= 0) {
-        return false;
-        }
-
-        var fr = new FileReader();
-        fr.onload = function(e) {
-            imported_data = imported_data.concat(JSON.parse(e.target.result));
-            data = loaded_data.concat(imported_data);
-            $.plot(placeholder, data, options);
-            $('#importModal').modal('hide');
-        }
-        fr.readAsText(files.item(0));
-    });
-
-    // Initialize stuff and fetch data
-    onPlaybackControl();
-}
+/* 
+ * This code is executed from document ready function 
+ * Also note that some variable are set from C++ code 
+ */ 
+ 
+var x1 = $.url("?x1"); 
+var x2 = $.url("?x2"); 
+var y1 = $.url("?y1"); 
+var y2 = $.url("?y2"); 
+ 
+var gantt = $.url("?gantt"); 
+var out = $.url("?out"); 
+ 
+var linesfill =    $.url("?linesfill")  == "y"; 
+var linessteps =   $.url("?linessteps") == "y"; 
+var linesshow =    $.url("?linesshow")  != "n"; 
+var pointsshow =   $.url("?pointsshow") != "n"; 
+var autoscale =    $.url("?autoscale")  == "y"; 
+var legendshow =   $.url("?legendshow") != "n"; 
+var cutts =        $.url("?cutts")      == "y"; 
+var fullscreen =   $.url("?fullscreen") == "y"; 
+var realnames =    $.url("?realnames")  == "y"; 
+var xzoomoff  =    $.url("?xzoomoff")   == "y"; 
+var yzoomoff  =    $.url("?yzoomoff")   == "y"; 
+ 
+function inIframe() { try { return window.self !== window.top; } catch (e) { return true; } } 
+function inDashboard() { return fullscreen && inIframe(); } 
+ 
+// URL management 
+function makeUrl(url, queryFunc, hashFunc) { 
+    var query = $.url("?", url); 
+    var hash = $.url("#", url); 
+    if (paused) { 
+        query.paused = "y"; 
+    } 
+ 
+    if (queryFunc) { queryFunc(query); } 
+    if (hashFunc) { hashFunc(hash); } 
+    var queryStr = ""; 
+    var first = true; 
+    for (var k in query) { 
+        queryStr += (first? "?": "&") + k + "=" + encodeURIComponent(query[k]); 
+        first = false; 
+    } 
+    var hashStr = ""; 
+    first = true; 
+    for (k in hash) { 
+        hashStr += (first? "#": "&") + k + "=" + encodeURIComponent(hash[k]); 
+        first = false; 
+    } 
+    return queryStr + hashStr; 
+} 
+ 
+function dataUrl() { 
+    return makeUrl(dataurl, function(query) { 
+        query.error = "text"; 
+    }); 
+} 
+ 
+// Error message popup 
+$("<div id='errmsg'></div>").css({ 
+    position: "absolute", 
+    display: "none", 
+    border: "1px solid #faa", 
+    padding: "2px", 
+    "background-color": "#fcc", 
+    opacity: 0.80 
+}).appendTo("body"); 
+ 
+if (out == "gantt") { 
+    $("#gantt-apply").click(function() { 
+        try { 
+            let val = $("#textareaGantt").val().replace(/\s/g, ""); 
+            JSON.parse(val); 
+            window.location.replace(makeUrl($.url(), function(query) { 
+                query.gantt = val; 
+            })); 
+        } catch(e) { 
+            $("#errmsg").text("Not valid JSON: " + e) 
+            .css({bottom: "5px", left: "25%", width: "50%"}) 
+            .fadeIn(200); 
+        } 
+    }); 
+ 
+    if (gantt) { 
+        // Data fetching and auto-refreshing 
+        var fetchCounter = 0; 
+        function fetchData() { 
+            function onDataReceived(json, textStatus, xhr) { 
+                $("#errmsg").hide(); 
+                logs = json; 
+                chart(config, logs, true); 
+            } 
+ 
+            function onDataError(xhr, error) { 
+                console.log(arguments); 
+                $("#errmsg").text("Fetch data error: " + error + (xhr.status == 200? xhr.responseText: "")) 
+                .css({bottom: "5px", left: "25%", width: "50%"}) 
+                .fadeIn(200); 
+            } 
+ 
+            if (dataurl) { 
+                $.ajax({ 
+                    url: dataUrl(), 
+                    type: "GET", 
+                    dataType: "json", 
+                    success: function (json, textStatus, xhr) { onDataReceived(json, textStatus, xhr); }, 
+                    error: onDataError 
+                }); 
+            } else { 
+                onDataReceived(datajson, "textStatus", "xhr"); 
+            } 
+ 
+            // if (fetchPeriod > 0) { 
+            //     if (fetchCounter == 0) { 
+            //         fetchCounter++; 
+            //         setTimeout(function() { 
+            //             fetchCounter--; 
+            //             if (!paused) { 
+            //                 fetchData(); 
+            //             } 
+            //         }, $("#errmsg").is(":visible")? errorPeriod: fetchPeriod); 
+            //     } 
+            // } 
+        } 
+ 
+        try { 
+            var config = JSON.parse(gantt); 
+            $("#textareaGantt").val(JSON.stringify(config, "\n", " ")); 
+            let formHeight = 220; 
+            var chart = d3.gantt() 
+                .height(window.innerHeight - $("#placeholder")[0].getBoundingClientRect().y - window.scrollY - formHeight) 
+                .selector("#placeholder"); 
+            var logs = null; 
+            fetchData(); 
+        } catch(e) { 
+            $("#textareaGantt").val(gantt); 
+            alert("Not valid JSON: " + e); 
+        } 
+    } 
+} else { // flot 
+    // Special options adjustment for fullscreen charts in iframe (solomon dashboards) 
+    if (fullscreen) { 
+        navigate = false; // Disable navigation to avoid scrolling problems 
+        legendshow = false; // Show legend only on hover 
+    } 
+ 
+    // Adjust zooming options 
+    var xZoomRange = null; 
+    var yZoomRange = null; 
+    if (xzoomoff) { 
+        xZoomRange = false; 
+    } 
+    if (yzoomoff) { 
+        yZoomRange = false; 
+    } 
+ 
+    var placeholder =  $("#placeholder"); 
+    var playback =     $("#playback"); 
+ 
+    var data = null; 
+    var loaded_data = []; 
+    var imported_data = []; 
+    var fetchPeriod = refreshPeriod; 
+    var errorPeriod = 5000; 
+    var playbackPeriod = 500; 
+    var abstimestep = 1.0; 
+ 
+    var paused = $.url("?paused")  == "y"; 
+    var timestep = abstimestep; 
+ 
+    var seriesDescription = { 
+        _time: "time", 
+        _thread: "thread" 
+    } 
+ 
+    function seriesDesc(name) { 
+        if (seriesDescription.hasOwnProperty(name)) { 
+            return (realnames? "[" + name + "] ": "") + seriesDescription[name]; 
+        } else { 
+            return name; 
+        } 
+    } 
+ 
+    playback.show(); 
+ 
+    var options = { 
+        series: { 
+            lines: { show: linesshow, fill: linesfill, steps: linessteps}, 
+            points: { show: pointsshow }, 
+            shadowSize: 0 
+        }, 
+        xaxis: { zoomRange: xZoomRange }, 
+        yaxis: { zoomRange: yZoomRange }, 
+        grid: { clickable: true, hoverable: true }, 
+        zoom: { interactive: navigate }, 
+        pan: { interactive: navigate }, 
+        legend: { 
+            show: legendshow, 
+            labelFormatter: function(label, series) { return seriesDesc(label) + '(' + seriesDesc(xn) + ')'; } 
+        } 
+    }; 
+ 
+    if (fullscreen) { 
+        $("body").attr("class","body-fullscreen"); 
+        $("#container").attr("class","container-fullscreen"); 
+        $("#toolbar").attr("class","toolbar-fullscreen"); 
+        $("#selectors-container").attr("class","toolbar-fullscreen"); 
+        options.grid.margin = 0; 
+    } 
+ 
+    if (x1) { options.xaxis.min = x1; } 
+    if (x2) { options.xaxis.max = x2; } 
+    if (y1) { options.yaxis.min = y1; } 
+    if (y2) { options.yaxis.max = y2; } 
+ 
+    $("<div id='tooltip'></div>").css({ 
+        position: "absolute", 
+        display: "none", 
+        border: "1px solid #fdd", 
+        padding: "2px", 
+        "background-color": "#fee", 
+        opacity: 0.80 
+    }).appendTo("body"); 
+ 
+    // Helper to hide tooltip 
+    var lastShow = new Date(); 
+    var hideCounter = 0; 
+    function hideTooltip() { 
+        if (hideCounter == 0) { 
+            hideCounter++; 
+            setTimeout(function() { 
+                hideCounter--; 
+                if (new Date().getTime() - lastShow.getTime() > 1000) { 
+                    $("#tooltip").fadeOut(200); 
+                } else if ($("#tooltip").is(":visible")) { 
+                    hideTooltip(); 
+                } 
+            }, 200); 
+        } 
+    } 
+ 
+    // Helper to hide legend 
+    var legendLastShow = new Date(); 
+    var legendHideCounter = 0; 
+    function hideLegend() { 
+        if (legendHideCounter == 0) { 
+            legendHideCounter++; 
+            setTimeout(function() { 
+                legendHideCounter--; 
+                if (new Date().getTime() - legendLastShow.getTime() > 1000) { 
+                    options.legend.show = false; 
+                    $.plot(placeholder, data, options); 
+                } else { 
+                    hideLegend(); 
+                } 
+            }, 200); 
+        } 
+    } 
+ 
+    function onPlotClick(event, pos, item) { 
+        // Leave fullscreen on click 
+        var nonFullscreenUrl = makeUrl($.url(), function(query) { 
+            delete query.fullscreen; 
+        }); 
+        if (inDashboard()) { 
+            window.open(nonFullscreenUrl, "_blank"); 
+        } else if (fullscreen) { 
+            window.location.href = nonFullscreenUrl; 
+        } 
+    } 
+ 
+    function onPlotHover(event, pos, item) { 
+        var redraw = false; 
+        // Show legend on hover 
+        if (fullscreen) { 
+            legendLastShow = new Date(); 
+            if (!options.legend.show) { 
+                redraw = true; 
+            } 
+            options.legend.show = true; 
+            hideLegend(); 
+        } 
+ 
+        // Show names on hover 
+        var left = placeholder.position().left; 
+        var top = placeholder.position().top; 
+        var ttmargin = 10; 
+        var ttwidth = $("#tooltip").width(); 
+        var ttheight = $("#tooltip").height(); 
+        if (linessteps) { 
+            var pts = data[0].data; 
+            var idx = 0; 
+            for (var i = 0; i < pts.length - 1; i++) { 
+                var x1 = pts[i][0]; 
+                var x2 = pts[i+1][0]; 
+                if (pos.x >= x1 && (x2 == null || pos.x < x2)) { 
+                    idx = i; 
+                } 
+            } 
+            var n = pts[idx][2]; 
+            var html = (n? "<u><b><center>" + n + "</center></b></u>": "") + "<table><tr><td align=\"right\">" + seriesDesc(xn) + "</td><td>: </td><td>" + pts[idx][3] + "</td></tr>"; 
+            for (var sid = 0; sid < data.length; sid++) { 
+                var series = data[sid]; 
+                var y = series.data[idx][4]; 
+                html += "<tr><td align=\"right\">" + seriesDesc(series.label) + "</td><td>: </td><td>" + y + "</td></tr>"; 
+            } 
+            html += "</table>"; 
+ 
+            lastShow = new Date(); 
+            if (pos.pageX < left + placeholder.width() && pos.pageX > left && 
+                pos.pageY < top + placeholder.height() && pos.pageY > top) { 
+                $("#tooltip").html(html) 
+                .css({top: Math.max(top + ttmargin + 10, pos.pageY - ttheight - 20), 
+                    left: Math.max(left + ttmargin + 10, pos.pageX - ttwidth - 20)}) 
+                .fadeIn(200, "swing", hideTooltip()); 
+            } 
+        } else { 
+            if (item) { 
+                var idx = item.dataIndex; 
+                var n = item.series.data[idx][2]; 
+                var x = item.series.data[idx][3]; //item.datapoint[0]; 
+                var y = item.series.data[idx][4]; //item.datapoint[1]; 
+                $("#tooltip").html((n? n + ": ": "") + seriesDesc(item.series.label) + " = " + y + ", " + seriesDesc(xn) + " = " + x) 
+                .css({top: Math.max(top + ttmargin + 10, item.pageY - ttheight - 20), 
+                    left: Math.max(left + ttmargin + 10, item.pageX - ttwidth - 20)}) 
+                .fadeIn(200); 
+            } else { 
+                $("#tooltip").hide(); 
+            } 
+        } 
+ 
+        // Redraw if required 
+        if (redraw) { 
+            $.plot(placeholder, data, options); 
+        } 
+    } 
+ 
+    // Add some more interactivity 
+    function onZoomOrPan(event, plot) { 
+        var axes = plot.getAxes(); 
+        options.xaxis.min = axes.xaxis.min; 
+        options.xaxis.max = axes.xaxis.max; 
+        options.yaxis.min = axes.yaxis.min; 
+        options.yaxis.max = axes.yaxis.max; 
+    } 
+ 
+    // Bind to events 
+    placeholder.bind("plotclick", onPlotClick); 
+    placeholder.bind("plothover", onPlotHover); 
+    placeholder.bind("plotpan", onZoomOrPan); 
+    placeholder.bind("plotzoom", onZoomOrPan); 
+ 
+    // Data fetching and auto-refreshing 
+    var fetchCounter = 0; 
+    function fetchData() { 
+        function onDataReceived(json, textStatus, xhr) { 
+            $("#errmsg").hide(); 
+            if (paused && logs) { 
+                return; 
+            } 
+ 
+            // Plot fetched data 
+            loaded_data = json; 
+            data = loaded_data.concat(imported_data); 
+ 
+            if (autoscale) { 
+                var xmin = null; 
+                var xmax = null; 
+                var ymin = null; 
+                var ymax = null; 
+                for (var sid = 0; sid < data.length; sid++) { 
+                    var pts = data[sid].data; 
+                    for (var i = 0; i < pts.length; i++) { 
+                        var x = pts[i][0]; 
+                        var y = pts[i][1]; 
+                        if (x != null && y != null) { 
+                            if (xmin == null || x < xmin) { xmin = x; } 
+                            if (xmax == null || x > xmax) { xmax = x; } 
+                            if (ymin == null || y < ymin) { ymin = y; } 
+                            if (ymax == null || y > ymax) { ymax = y; } 
+                        } 
+                    } 
+                } 
+                if (xmin != null) { options.xaxis.min = xmin; } 
+                if (xmax != null) { options.xaxis.max = xmax; } 
+                if (ymin != null) { options.yaxis.min = ymin; } 
+                if (ymax != null) { options.yaxis.max = ymax; } 
+            } 
+            $.plot(placeholder, data, options); 
+        } 
+ 
+        function onDataError(xhr, error) { 
+            console.log(arguments); 
+            $("#errmsg").text("Fetch data error: " + error + (xhr.status == 200? xhr.responseText: "")) 
+            .css({bottom: "5px", left: "25%", width: "50%"}) 
+            .fadeIn(200); 
+        } 
+ 
+        if (dataurl) { 
+            $.ajax({ 
+                url: dataUrl(), 
+                type: "GET", 
+                dataType: "json", 
+                success: function (json, textStatus, xhr) { onDataReceived(json, textStatus, xhr); }, 
+                error: onDataError 
+            }); 
+        } else { 
+            onDataReceived(datajson, "textStatus", "xhr"); 
+        } 
+ 
+        if (fetchPeriod > 0) { 
+            if (fetchCounter == 0) { 
+                fetchCounter++; 
+                setTimeout(function() { 
+                    fetchCounter--; 
+                    if (!paused) { 
+                        fetchData(); 
+                    } 
+                }, $("#errmsg").is(":visible")? errorPeriod: fetchPeriod); 
+            } 
+        } 
+    } 
+ 
+    // Playback control 
+    var pb_pause = $("#pb-pause"); 
+ 
+    function setActive(btn, active) { 
+        if (active) { 
+            btn.addClass("btn-primary"); 
+            btn.removeClass("btn-default"); 
+        } else { 
+            btn.addClass("btn-default"); 
+            btn.removeClass("btn-primary"); 
+        } 
+    } 
+ 
+    function onPlaybackControl() { 
+        setActive(pb_pause, paused); 
+        fetchPeriod = refreshPeriod; 
+        fetchData(); 
+    } 
+ 
+    function clickPause(val) { 
+        paused = val; 
+        onPlaybackControl(); 
+    } 
+ 
+    pb_pause.click(function() { clickPause(!paused); }); 
+ 
+    function addOptionButton(opt, btn, defOn) { 
+        setActive(btn, defOn ? $.url("?" + opt) != "n" : $.url("?" + opt) == "y"); 
+        btn.click(function() { 
+            window.location.replace(makeUrl($.url(), function(query) { 
+                if (defOn) { 
+                    if ($.url("?" + opt) != "n") { 
+                        query[opt] = "n"; 
+                    } else { 
+                        delete query[opt]; 
+                    } 
+                } else { 
+                    if ($.url("?" + opt) == "y") { 
+                        delete query[opt]; 
+                    } else { 
+                        query[opt] = "y"; 
+                    } 
+                } 
+            })); 
+        }); 
+    } 
+ 
+    // Options 
+    addOptionButton("linesfill", $("#pb-linesfill"), false); 
+    addOptionButton("linessteps", $("#pb-linessteps"), false); 
+    addOptionButton("linesshow", $("#pb-linesshow"), true); 
+    addOptionButton("pointsshow", $("#pb-pointsshow"), true); 
+    addOptionButton("legendshow", $("#pb-legendshow"), true); 
+    addOptionButton("cutts", $("#pb-cutts"), false); 
+    addOptionButton("autoscale", $("#pb-autoscale"), false); 
+ 
+    var pb_fullscreen = $("#pb-fullscreen"); 
+    setActive(pb_fullscreen, fullscreen); 
+    pb_fullscreen.click(function(){ 
+        window.location.href = makeUrl($.url(), function(query) { 
+            if (fullscreen) { 
+                delete query.fullscreen; 
+            } else { 
+                query.fullscreen = "y"; 
+            } 
+        }); 
+    }); 
+ 
+    // Embeded mode (in case there is other stuff on page) 
+    function embededMode() { 
+        $("#pb-fullscreen").hide(); 
+        $("#pb-autoscale").hide(); 
+        $("#pb-legendshow").hide(); 
+        $("#pb-pause").hide(); 
+    } 
+ 
+    function enableSelection() { 
+        // Redraw chart with selection enabled 
+        options.selection = {mode: "x"}; 
+        var plot = $.plot(placeholder, data, options); 
+        if ($.url("?sel_x1") && $.url("?sel_x2")) { 
+            plot.setSelection({ 
+                xaxis: { 
+                    from: $.url("?sel_x1") , 
+                    to: $.url("?sel_x2") 
+                } 
+            }); 
+        } 
+ 
+        // Create selection hooks 
+        placeholder.bind("plotselected", function (event, ranges) { 
+            window.location.replace(makeUrl($.url(), function(query) { 
+                query.sel_x1 = ranges.xaxis.from; 
+                query.sel_x2 = ranges.xaxis.to; 
+            })); 
+        }); 
+        placeholder.bind("plotunselected", function (event) { 
+            window.location.replace(makeUrl($.url(), function(query) { 
+                delete query.sel_x1; 
+                delete query.sel_x2; 
+            })); 
+        }); 
+ 
+        // Init and show unselect button 
+        $("#pb-unselect").click(function () { 
+            plot.clearSelection(); 
+        }); 
+        $("#pb-unselect").removeClass("hidden"); 
+    } 
+ 
+    // Export data 
+    var pb_export = $("#pb-export"); 
+    pb_export.click(function(){ 
+        var blob = new Blob([JSON.stringify(data)], {type: "application/json;charset=utf-8"}); 
+        saveAs(blob, "exported.json"); 
+    }); 
+ 
+    // Import data 
+    $("#btnDoImport").click(function(){ 
+        var files = document.getElementById('importFiles').files; 
+        if (files.length <= 0) { 
+        return false; 
+        } 
+ 
+        var fr = new FileReader(); 
+        fr.onload = function(e) { 
+            imported_data = imported_data.concat(JSON.parse(e.target.result)); 
+            data = loaded_data.concat(imported_data); 
+            $.plot(placeholder, data, options); 
+            $('#importModal').modal('hide'); 
+        } 
+        fr.readAsText(files.item(0)); 
+    }); 
+ 
+    // Initialize stuff and fetch data 
+    onPlaybackControl(); 
+} 
diff --git a/library/cpp/lwtrace/mon/static/common.js b/library/cpp/lwtrace/mon/static/common.js
index 42b93a6836..38ca5e464c 100644
--- a/library/cpp/lwtrace/mon/static/common.js
+++ b/library/cpp/lwtrace/mon/static/common.js
@@ -1,17 +1,17 @@
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"":A[e].format(c,b,x[0].cells[e],e),l.push(q.ignoreCase&&"string"===typeof c?c.toLowerCase():c),"numeric"===(A[e].type||"").toLowerCase()&&(k[e]=Math.max(Math.abs(c)||0,k[e]||0)));l[q.columns]=u;a.normalized.push(l)}a.colMax=k;q.totalRows+=a.normalized.length}q.showProcessing&&g.isProcessing(b);q.debug&&r("Building cache for "+w+" rows",n)}function B(b,a){var c=b.config,f=c.widgetOptions,e=b.tBodies,m=[],d=c.cache,l,n,w,u,p,q;if(k(d))return c.appender?c.appender(b,m):b.isUpdating?c.$table.trigger("updateComplete", b):"";c.debug&&(q=new Date);for(p=0;p<e.length;p++)if(l=h(e[p]),l.length&&!l.hasClass(c.cssInfoBlock)){w=g.processTbody(b,l,!0);l=d[p].normalized;n=l.length;for(u=0;u<n;u++)m.push(l[u][c.columns].$row),c.appender&&(!c.pager||c.pager.removeRows&&f.pager_removeRows||c.pager.ajax)||w.append(l[u][c.columns].$row);g.processTbody(b,w,!1)}c.appender&&c.appender(b,m);c.debug&&r("Rebuilt table",q);a||c.appender||g.applyWidget(b);b.isUpdating&&c.$table.trigger("updateComplete",b)}function F(b){return/^d/i.test(b)|| 1===b}function E(b){var a,c,f,e,m,x,l,n=b.config;n.headerList=[];n.headerContent=[];n.debug&&(l=new Date);n.columns=g.computeColumnIndex(n.$table.children("thead, tfoot").children("tr"));e=n.cssIcon?'<i class="'+(n.cssIcon===g.css.icon?g.css.icon:n.cssIcon+" "+g.css.icon)+'"></i>':"";n.$headers=h(h.map(h(b).find(n.selectorHeaders),function(l,d){c=h(l);if(!c.parent().hasClass(n.cssIgnoreRow))return a=g.getColumnData(b,n.headers,d,!0),n.headerContent[d]=c.html(),""!==n.headerTemplate&&(m=n.headerTemplate.replace(/\{content\}/g, c.html()).replace(/\{icon\}/g,e),n.onRenderTemplate&&(f=n.onRenderTemplate.apply(c,[d,m]))&&"string"===typeof f&&(m=f),c.html('<div class="'+g.css.headerIn+'">'+m+"</div>")),n.onRenderHeader&&n.onRenderHeader.apply(c,[d,n,n.$table]),l.column=parseInt(c.attr("data-column"),10),l.order=F(g.getData(c,a,"sortInitialOrder")||n.sortInitialOrder)?[1,0,2]:[0,1,2],l.count=-1,l.lockedOrder=!1,x=g.getData(c,a,"lockedOrder")||!1,"undefined"!==typeof x&&!1!==x&&(l.order=l.lockedOrder=F(x)?[1,1,1]:[0,0,0]),c.addClass(g.css.header+ " "+n.cssHeader),n.headerList[d]=l,c.parent().addClass(g.css.headerRow+" "+n.cssHeaderRow).attr("role","row"),n.tabIndex&&c.attr("tabindex",0),l}));h(b).find(n.selectorHeaders).attr({scope:"col",role:"columnheader"});H(b);n.debug&&(r("Built headers:",l),d(n.$headers))}function I(b,a,c){var f=b.config;f.$table.find(f.selectorRemove).remove();p(b);y(b);J(f.$table,a,c)}function H(b){var a,c,f,e=b.config;e.$headers.each(function(m,d){c=h(d);f=g.getColumnData(b,e.headers,m,!0);a="false"===g.getData(d, f,"sorter")||"false"===g.getData(d,f,"parser");d.sortDisabled=a;c[a?"addClass":"removeClass"]("sorter-false").attr("aria-disabled",""+a);b.id&&(a?c.removeAttr("aria-controls"):c.attr("aria-controls",b.id))})}function G(b){var a,c,f=b.config,e=f.sortList,m=e.length,d=g.css.sortNone+" "+f.cssNone,l=[g.css.sortAsc+" "+f.cssAsc,g.css.sortDesc+" "+f.cssDesc],n=[f.cssIconAsc,f.cssIconDesc,f.cssIconNone],w=["ascending","descending"],k=h(b).find("tfoot tr").children().add(f.$extraHeaders).removeClass(l.join(" ")); 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A)try{A.localStorage.setItem("_tmptest","temp"),g=!0,A.localStorage.removeItem("_tmptest")}catch(n){}k.parseJSON&&(g?e=k.parseJSON(localStorage[a]||"{}"):(h=document.cookie.split(/[;\s|=]/),e=k.inArray(a,h)+1,e=0!==e?k.parseJSON(h[e]||"{}"):{})); if((b||""===b)&&A.JSON&&JSON.hasOwnProperty("stringify"))e[d]||(e[d]={}),e[d][c]=b,g?localStorage[a]=JSON.stringify(e):(b=new Date,b.setTime(b.getTime()+31536E6),document.cookie=a+"="+JSON.stringify(e).replace(/\"/g,'"')+"; expires="+b.toGMTString()+"; path=/");else return e&&e[d]?e[d][c]:""}; e.addHeaderResizeEvent=function(c,a,b){c=k(c)[0];var d;b=k.extend({},{timer:250},b);var e=c.config,h=e.widgetOptions,g=function(a){h.resize_flag=!0;d=[];e.$headers.each(function(){var a=k(this),b=a.data("savedSizes")|| [0,0],c=this.offsetWidth,e=this.offsetHeight;if(c!==b[0]||e!==b[1])a.data("savedSizes",[c,e]),d.push(this)});d.length&&!1!==a&&e.$table.trigger("resize",[d]);h.resize_flag=!1};g(!1);clearInterval(h.resize_timer);if(a)return h.resize_flag=!1;h.resize_timer=setInterval(function(){h.resize_flag||g()},b.timer)}; e.addWidget({id:"uitheme",priority:10,format:function(c,a,b){var d,f,h,g=e.themes;d=a.$table;var m=a.$headers,n=a.theme||"jui",p=g[n]||g.jui,g=[p.sortNone,p.sortDesc,p.sortAsc,p.active].join(" "); a.debug&&(f=new Date);d.hasClass("tablesorter-"+n)&&a.theme===a.appliedTheme&&c.hasInitialized||(h=(c=p[a.appliedTheme]||{},[c.sortNone,c.sortDesc,c.sortAsc,c.active].join(" ")),c&&(b.zebra[0]=b.zebra[0].replace(" "+c.even,""),b.zebra[1]=b.zebra[1].replace(" "+c.odd,"")),""!==p.even&&(b.zebra[0]+=" "+p.even),""!==p.odd&&(b.zebra[1]+=" "+p.odd),d.children("caption").removeClass(c.caption).addClass(p.caption),b=d.removeClass(a.appliedTheme?"tablesorter-"+(a.appliedTheme||""):"").addClass("tablesorter-"+ n+" "+p.table).children("tfoot"),b.length&&b.children("tr").removeClass(c.footerRow||"").addClass(p.footerRow).children("th, 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p.icons)):(h=b.hasClass(e.css.sortAsc)?p.sortAsc:b.hasClass(e.css.sortDesc)?p.sortDesc:b.hasClass(e.css.header)?p.sortNone:"",b[h===p.sortNone?"removeClass":"addClass"](p.active),c.removeClass(g).addClass(h)));a.debug&&e.benchmark("Applying "+n+" theme",f)},remove:function(c,a){var b=a.$table,d=a.theme||"jui",f=e.themes[d]||e.themes.jui,h=b.children("thead").children(),g=f.sortNone+" "+f.sortDesc+" "+f.sortAsc;b.removeClass("tablesorter-"+d+" "+f.table).find(e.css.header).removeClass(f.header);h.unbind("mouseenter.tsuitheme mouseleave.tsuitheme").removeClass(f.hover+ " "+g+" "+f.active).find("."+e.css.filterRow).removeClass(f.filterRow);h.find("."+e.css.icon).removeClass(f.icons)}}); e.addWidget({id:"columns",priority:30,options:{columns:["primary","secondary","tertiary"]},format:function(c,a,b){var d,f,h,g,m,n,p=a.$table,r=a.$tbodies,w=a.sortList,x=w.length,t=b&&b.columns||["primary","secondary","tertiary"],u=t.length-1;m=t.join(" 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e.addWidget({id:"filter",priority:50,options:{filter_childRows:!1,filter_columnFilters:!0,filter_cellFilter:"",filter_cssFilter:"",filter_defaultFilter:{},filter_excludeFilter:{},filter_external:"",filter_filteredRow:"filtered",filter_formatter:null,filter_functions:null,filter_hideEmpty:!0, filter_hideFilters:!1,filter_ignoreCase:!0,filter_liveSearch:!0,filter_onlyAvail:"filter-onlyAvail",filter_placeholder:{search:"",select:""},filter_reset:null,filter_saveFilters:!1,filter_searchDelay:300,filter_searchFiltered:!0,filter_selectSource:null,filter_startsWith:!1,filter_useParsedData:!1,filter_serversideFiltering:!1,filter_defaultAttrib:"data-value",filter_selectSourceSeparator:"|"},format:function(c,a,b){a.$table.hasClass("hasFilters")||e.filter.init(c,a,b)},remove:function(c,a,b){var d, f=a.$tbodies;a.$table.removeClass("hasFilters").unbind("addRows updateCell update updateRows updateComplete appendCache filterReset filterEnd search ".split(" ").join(a.namespace+"filter 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null},wild:function(c,a){if(/[\?\*\|]/.test(a.iFilter)||e.filter.regex.orReplace.test(a.filter)){var b=a.index,d=a.parsed[b],d=e.filter.parseFilter(c,a.iFilter.replace(e.filter.regex.orReplace,"|"),b,d);!c.$headers.filter('[data-column="'+b+'"]:last').hasClass("filter-match")&&/\|/.test(d)&&("|"===d[d.length-1]&&(d+="*"),d=a.anyMatch&&k.isArray(a.rowArray)?"("+d+")":"^("+d+")$");return(new RegExp(d.replace(/\?/g,"\\S{1}").replace(/\*/g, "\\S*"))).test(a.iExact)}return null},fuzzy:function(c,a){if(/^~/.test(a.iFilter)){var b,d=0,f=a.iExact.length,h=e.filter.parseFilter(c,a.iFilter.slice(1),a.index,a.parsed[a.index]);for(b=0;b<f;b++)a.iExact[b]===h[d]&&(d+=1);return d===h.length?!0:!1}return null}},init:function(c,a,b){e.language=k.extend(!0,{},{to:"to",or:"or",and:"and"},e.language);var d,f,h,g,m,n,p;d=e.filter.regex;a.$table.addClass("hasFilters");b.searchTimer=null;b.filter_initTimer=null;b.filter_formatterCount=0;b.filter_formatterInit= [];b.filter_anyColumnSelector='[data-column="all"],[data-column="any"]';b.filter_multipleColumnSelector='[data-column*="-"],[data-column*=","]';h="\\{"+e.filter.regex.query+"\\}";k.extend(d,{child:new RegExp(a.cssChildRow),filtered:new RegExp(b.filter_filteredRow),alreadyFiltered:new RegExp("(\\s+("+e.language.or+"|-|"+e.language.to+")\\s+)","i"),toTest:new RegExp("\\s+(-|"+e.language.to+")\\s+","i"),toSplit:new RegExp("(?:\\s+(?:-|"+e.language.to+")\\s+)","gi"),andTest:new RegExp("\\s+("+e.language.and+ "|&&)\\s+","i"),andSplit:new RegExp("(?:\\s+(?:"+e.language.and+"|&&)\\s+)","gi"),orReplace:new RegExp("\\s+("+e.language.or+")\\s+","gi"),iQuery:new RegExp(h,"i"),igQuery:new RegExp(h,"ig")});!1!==b.filter_columnFilters&&a.$headers.filter(".filter-false, .parser-false").length!==a.$headers.length&&e.filter.buildRow(c,a,b);a.$table.bind("addRows updateCell update updateRows updateComplete appendCache filterReset filterEnd search ".split(" ").join(a.namespace+"filter "),function(d,f){a.$table.find("."+ e.css.filterRow).toggle(!(b.filter_hideEmpty&&k.isEmptyObject(a.cache)&&(!a.delayInit||"appendCache"!==d.type)));/(search|filter)/.test(d.type)||(d.stopPropagation(),e.filter.buildDefault(c,!0));"filterReset"===d.type?(a.$table.find("."+e.css.filter).add(b.filter_$externalFilters).val(""),e.filter.searching(c,[])):"filterEnd"===d.type?e.filter.buildDefault(c,!0):(f="search"===d.type?f:"updateComplete"===d.type?a.$table.data("lastSearch"):"",/(update|add)/.test(d.type)&&"updateComplete"!==d.type&& (a.lastCombinedFilter=null,a.lastSearch=[]),e.filter.searching(c,f,!0));return!1});b.filter_reset&&(b.filter_reset instanceof k?b.filter_reset.click(function(){a.$table.trigger("filterReset")}):k(b.filter_reset).length&&k(document).undelegate(b.filter_reset,"click.tsfilter").delegate(b.filter_reset,"click.tsfilter",function(){a.$table.trigger("filterReset")}));if(b.filter_functions)for(m=0;m<a.columns;m++)if(h=e.getColumnData(c,b.filter_functions,m))if(g=a.$headers.filter('[data-column="'+m+'"]:last').removeClass("filter-select"), p=!(g.hasClass("filter-false")||g.hasClass("parser-false")),d="",!0===h&&p)e.filter.buildSelect(c,m);else if("object"===typeof h&&p){for(f in h)"string"===typeof f&&(d+=""===d?'<option value="">'+(g.data("placeholder")||g.attr("data-placeholder")||b.filter_placeholder.select||"")+"</option>":"",h=p=f,0<=f.indexOf(b.filter_selectSourceSeparator)&&(p=f.split(b.filter_selectSourceSeparator),h=p[1],p=p[0]),d+="<option "+(h===p?"":'data-function-name="'+f+'" ')+'value="'+p+'">'+h+"</option>");a.$table.find("thead").find("select."+ e.css.filter+'[data-column="'+m+'"]').append(d)}e.filter.buildDefault(c,!0);e.filter.bindSearch(c,a.$table.find("."+e.css.filter),!0);b.filter_external&&e.filter.bindSearch(c,b.filter_external);b.filter_hideFilters&&e.filter.hideFilters(c,a);a.showProcessing&&a.$table.bind("filterStart"+a.namespace+"filter filterEnd"+a.namespace+"filter",function(b,d){g=d?a.$table.find("."+e.css.header).filter("[data-column]").filter(function(){return""!==d[k(this).data("column")]}):"";e.isProcessing(c,"filterStart"=== b.type,d?g:"")});a.filteredRows=a.totalRows;a.$table.bind("tablesorter-initialized pagerBeforeInitialized",function(){var b=this.config.widgetOptions;n=e.filter.setDefaults(c,a,b)||[];n.length&&(a.delayInit&&""===n.join("")||e.setFilters(c,n,!0));a.$table.trigger("filterFomatterUpdate");setTimeout(function(){b.filter_initialized||e.filter.filterInitComplete(a)},100)});a.pager&&a.pager.initialized&&!b.filter_initialized&&(a.$table.trigger("filterFomatterUpdate"),setTimeout(function(){e.filter.filterInitComplete(a)}, 100))},formatterUpdated:function(c,a){var b=c.closest("table")[0].config.widgetOptions;b.filter_initialized||(b.filter_formatterInit[a]=1)},filterInitComplete:function(c){var a=c.widgetOptions,b=0,d=function(){a.filter_initialized=!0;c.$table.trigger("filterInit",c);e.filter.findRows(c.table,c.$table.data("lastSearch")||[])};k.isEmptyObject(a.filter_formatter)?d():(k.each(a.filter_formatterInit,function(a,c){1===c&&b++}),clearTimeout(a.filter_initTimer),a.filter_initialized||b!==a.filter_formatterCount)? a.filter_initialized||(a.filter_initTimer=setTimeout(function(){d()},500)):d()},setDefaults:function(c,a,b){var d,f=e.getFilters(c)||[];b.filter_saveFilters&&e.storage&&(d=e.storage(c,"tablesorter-filters")||[],(c=k.isArray(d))&&""===d.join("")||!c||(f=d));if(""===f.join(""))for(c=0;c<a.columns;c++)f[c]=a.$headers.filter('[data-column="'+c+'"]:last').attr(b.filter_defaultAttrib)||f[c];a.$table.data("lastSearch",f);return f},parseFilter:function(c,a,b,d,e){return e||d?c.parsers[b].format(a,c.table, [],b):a},buildRow:function(c,a,b){var d,f,h,g,m=a.columns;h=k.isArray(b.filter_cellFilter);g='<tr role="row" class="'+e.css.filterRow+'">';for(f=0;f<m;f++)g=h?g+("<td"+(b.filter_cellFilter[f]?' class="'+b.filter_cellFilter[f]+'"':"")+"></td>"):g+("<td"+(""!==b.filter_cellFilter?' class="'+b.filter_cellFilter+'"':"")+"></td>");a.$filters=k(g+"</tr>").appendTo(a.$table.children("thead").eq(0)).find("td");for(f=0;f<m;f++)h=a.$headers.filter('[data-column="'+f+'"]:last'),g=e.getColumnData(c,b.filter_functions, f),g=b.filter_functions&&g&&"function"!==typeof g||h.hasClass("filter-select"),d=e.getColumnData(c,a.headers,f),d="false"===e.getData(h[0],d,"filter")||"false"===e.getData(h[0],d,"parser"),g?g=k("<select>").appendTo(a.$filters.eq(f)):((g=e.getColumnData(c,b.filter_formatter,f))?(b.filter_formatterCount++,(g=g(a.$filters.eq(f),f))&&0===g.length&&(g=a.$filters.eq(f).children("input")),g&&(0===g.parent().length||g.parent().length&&g.parent()[0]!==a.$filters[f])&&a.$filters.eq(f).append(g)):g=k('<input type="search">').appendTo(a.$filters.eq(f)), g&&g.attr("placeholder",h.data("placeholder")||h.attr("data-placeholder")||b.filter_placeholder.search||"")),g&&(h=(k.isArray(b.filter_cssFilter)?"undefined"!==typeof b.filter_cssFilter[f]?b.filter_cssFilter[f]||"":"":b.filter_cssFilter)||"",g.addClass(e.css.filter+" "+h).attr("data-column",f),d&&(g.attr("placeholder","").addClass("disabled")[0].disabled=!0))},bindSearch:function(c,a,b){c=k(c)[0];a=k(a);if(a.length){var d=c.config,f=d.widgetOptions,h=f.filter_$externalFilters;!0!==b&&(f.filter_$anyMatch= a.filter(f.filter_anyColumnSelector+","+f.filter_multipleColumnSelector),f.filter_$externalFilters=h&&h.length?f.filter_$externalFilters.add(a):a,e.setFilters(c,d.$table.data("lastSearch")||[],!1===b));a.attr("data-lastSearchTime",(new Date).getTime()).unbind(["keypress","keyup","search","change",""].join(d.namespace+"filter ")).bind("keyup"+d.namespace+"filter",function(a){k(this).attr("data-lastSearchTime",(new Date).getTime());if(27===a.which)this.value="";else if(!1===f.filter_liveSearch||""!== this.value&&("number"===typeof f.filter_liveSearch&&this.value.length<f.filter_liveSearch||13!==a.which&&8!==a.which&&(32>a.which||37<=a.which&&40>=a.which)))return;e.filter.searching(c,!0,!0)}).bind(["search","change","keypress",""].join(d.namespace+"filter "),function(a){var b=k(this).data("column");if(13===a.which||"search"===a.type||"change"===a.type&&this.value!==d.lastSearch[b])a.preventDefault(),k(this).attr("data-lastSearchTime",(new Date).getTime()),e.filter.searching(c,!1,!0)})}},searching:function(c, a,b){var d=c.config.widgetOptions;clearTimeout(d.searchTimer);"undefined"===typeof a||!0===a?d.searchTimer=setTimeout(function(){e.filter.checkFilters(c,a,b)},d.filter_liveSearch?d.filter_searchDelay:10):e.filter.checkFilters(c,a,b)},checkFilters:function(c,a,b){var d=c.config,f=d.widgetOptions,h=k.isArray(a),g=h?a:e.getFilters(c,!0),m=(g||[]).join("");if(k.isEmptyObject(d.cache))d.delayInit&&d.pager&&d.pager.initialized&&d.$table.trigger("updateCache",[function(){e.filter.checkFilters(c,!1,b)}]); else if(h&&(e.setFilters(c,g,!1,!0!==b),f.filter_initialized||(d.lastCombinedFilter="")),f.filter_hideFilters&&d.$table.find("."+e.css.filterRow).trigger(""===m?"mouseleave":"mouseenter"),d.lastCombinedFilter!==m||!1===a)if(!1===a&&(d.lastCombinedFilter=null,d.lastSearch=[]),f.filter_initialized&&d.$table.trigger("filterStart",[g]),d.showProcessing)setTimeout(function(){e.filter.findRows(c,g,m);return!1},30);else return e.filter.findRows(c,g,m),!1},hideFilters:function(c,a){var b,d,f;k(c).find("."+ e.css.filterRow).addClass("hideme").bind("mouseenter mouseleave",function(c){b=k(this);clearTimeout(f);f=setTimeout(function(){/enter|over/.test(c.type)?b.removeClass("hideme"):k(document.activeElement).closest("tr")[0]!==b[0]&&""===a.lastCombinedFilter&&b.addClass("hideme")},200)}).find("input, select").bind("focus blur",function(b){d=k(this).closest("tr");clearTimeout(f);f=setTimeout(function(){if(""===e.getFilters(a.$table).join(""))d["focus"===b.type?"removeClass":"addClass"]("hideme")},200)})}, defaultFilter:function(c,a){if(""===c)return c;var b=e.filter.regex.iQuery,d=a.match(e.filter.regex.igQuery).length,f=1<d?k.trim(c).split(/\s/):[k.trim(c)],h=f.length-1,g=0,m=a;for(1>h&&1<d&&(f[1]=f[0]);b.test(m);)m=m.replace(b,f[g++]||""),b.test(m)&&g<h&&""!==(f[g]||"")&&(m=a.replace(b,m));return m},getLatestSearch:function(c){return c.sort(function(a,b){return k(b).attr("data-lastSearchTime")-k(a).attr("data-lastSearchTime")})},multipleColumns:function(c,a){var b,d;b=c.widgetOptions;var f=b.filter_initialized|| !a.filter(b.filter_anyColumnSelector).length,h=[],g=k.trim(e.filter.getLatestSearch(a).attr("data-column"));f&&/-/.test(g)&&(b=g.match(/(\d+)\s*-\s*(\d+)/g),k.each(b,function(a,b){var d;d=b.split(/\s*-\s*/);var e=parseInt(d[0],10)||0,f=parseInt(d[1],10)||c.columns-1;e>f&&(d=e,e=f,f=d);for(f>=c.columns&&(f=c.columns-1);e<=f;e++)h.push(e);g=g.replace(b,"")}));f&&/,/.test(g)&&(b=g.split(/\s*,\s*/),k.each(b,function(a,b){""!==b&&(d=parseInt(b,10),d<c.columns&&h.push(d))}));if(!h.length)for(d=0;d<c.columns;d++)h.push(d); return h},findRows:function(c,a,b){if(c.config.lastCombinedFilter!==b&&c.config.widgetOptions.filter_initialized){var d,f,h,g,m,n,p,r,w,x,t,u,y,A,z,B,C,G,D,H,F=e.filter.regex,q=c.config,v=q.widgetOptions,I=q.$table.children("tbody"),l={anyMatch:!1},J=["range","notMatch","operators"];l.parsed=q.$headers.map(function(a){return q.parsers&&q.parsers[a]&&q.parsers[a].parsed||e.getData&&"parsed"===e.getData(q.$headers.filter('[data-column="'+a+'"]:last'),e.getColumnData(c,q.headers,a),"filter")||k(this).hasClass("filter-parsed")}).get(); q.debug&&(e.log("Starting filter widget search",a),A=new Date);q.filteredRows=0;q.totalRows=0;b=(a||[]).join("");for(g=0;g<I.length;g++)if(!I.eq(g).hasClass(q.cssInfoBlock||e.css.info)){m=e.processTbody(c,I.eq(g),!0);r=q.columns;f=k(k.map(q.cache[g].normalized,function(a){return a[r].$row.get()}));if(""===b||v.filter_serversideFiltering)f.removeClass(v.filter_filteredRow).not("."+q.cssChildRow).show();else{f=f.not("."+q.cssChildRow);d=f.length;B=v.filter_searchFiltered;h=q.lastSearch||q.$table.data("lastSearch")|| [];if(B)for(n=0;n<r+1;n++)z=a[n]||"",B||(n=r),B=B&&h.length&&0===z.indexOf(h[n]||"")&&!F.alreadyFiltered.test(z)&&!/[=\"\|!]/.test(z)&&!(/(>=?\s*-\d)/.test(z)||/(<=?\s*\d)/.test(z))&&!(""!==z&&q.$filters&&q.$filters.eq(n).find("select").length&&!q.$headers.filter('[data-column="'+n+'"]:last').hasClass("filter-match"));z=f.not("."+v.filter_filteredRow).length;B&&0===z&&(B=!1);q.debug&&e.log("Searching through "+(B&&z<d?z:"all")+" rows");if(v.filter_$anyMatch&&v.filter_$anyMatch.length||a[q.columns])l.anyMatchFlag= !0,l.anyMatchFilter=v.filter_$anyMatch&&e.filter.getLatestSearch(v.filter_$anyMatch).val()||a[q.columns]||"",q.sortLocaleCompare&&(l.anyMatchFilter=e.replaceAccents(l.anyMatchFilter)),v.filter_defaultFilter&&F.iQuery.test(e.getColumnData(c,v.filter_defaultFilter,q.columns,!0)||"")&&(l.anyMatchFilter=e.filter.defaultFilter(l.anyMatchFilter,e.getColumnData(c,v.filter_defaultFilter,q.columns,!0)),B=!1),l.iAnyMatchFilter=v.filter_ignoreCase&&q.ignoreCase?l.anyMatchFilter.toLocaleLowerCase():l.anyMatchFilter; for(h=0;h<d;h++)if(l.cacheArray=q.cache[g].normalized[h],w=f[h].className,!(F.child.test(w)||B&&F.filtered.test(w))){y=!0;w=f.eq(h).nextUntil("tr:not(."+q.cssChildRow+")");l.childRowText=w.length&&v.filter_childRows?w.text():"";l.childRowText=v.filter_ignoreCase?l.childRowText.toLocaleLowerCase():l.childRowText;n=f.eq(h).children();if(l.anyMatchFlag){r=e.filter.multipleColumns(q,v.filter_$anyMatch);l.anyMatch=!0;l.rowArray=n.map(function(a){if(-1<k.inArray(a,r))return l.parsed[a]?a=l.cacheArray[a]: (a=v.filter_ignoreCase?k(this).text().toLowerCase():k(this).text(),q.sortLocaleCompare&&(a=e.replaceAccents(a))),a}).get();l.filter=l.anyMatchFilter;l.iFilter=l.iAnyMatchFilter;l.exact=l.rowArray.join(" ");l.iExact=v.filter_ignoreCase?l.exact.toLowerCase():l.exact;l.cache=l.cacheArray.slice(0,-1).join(" ");C=null;k.each(e.filter.types,function(a,b){if(0>k.inArray(a,J)&&(t=b(q,l),null!==t))return C=t,!1});if(null!==C)y=C;else if(v.filter_startsWith)for(y=!1,r=q.columns;!y&&0<r;)r--,y=y||0===l.rowArray[r].indexOf(l.iFilter); else y=0<=(l.iExact+l.childRowText).indexOf(l.iFilter);l.anyMatch=!1}for(r=0;r<q.columns;r++)l.filter=a[r],l.index=r,G=(e.getColumnData(c,v.filter_excludeFilter,r,!0)||"").split(/\s+/),l.filter&&(l.cache=l.cacheArray[r],v.filter_useParsedData||l.parsed[r]?l.exact=l.cache:(l.exact=k.trim(n.eq(r).text()),l.exact=q.sortLocaleCompare?e.replaceAccents(l.exact):l.exact),l.iExact=!F.type.test(typeof l.exact)&&v.filter_ignoreCase?l.exact.toLocaleLowerCase():l.exact,u=y,H=v.filter_columnFilters?q.$filters.add(q.$externalFilters).filter('[data-column="'+ r+'"]').find("select option:selected").attr("data-function-name")||"":"",l.filter=q.sortLocaleCompare?e.replaceAccents(l.filter):l.filter,z=!0,v.filter_defaultFilter&&F.iQuery.test(e.getColumnData(c,v.filter_defaultFilter,r)||"")&&(l.filter=e.filter.defaultFilter(l.filter,e.getColumnData(c,v.filter_defaultFilter,r)),z=!1),l.iFilter=v.filter_ignoreCase?(l.filter||"").toLocaleLowerCase():l.filter,D=e.getColumnData(c,v.filter_functions,r),p=q.$headers.filter('[data-column="'+r+'"]:last'),x=p.hasClass("filter-select"), D||x&&z?!0===D||x?u=p.hasClass("filter-match")?0<=l.iExact.search(l.iFilter):l.filter===l.exact:"function"===typeof D?u=D(l.exact,l.cache,l.filter,r,f.eq(h)):"function"===typeof D[H||l.filter]&&(u=D[H||l.filter](l.exact,l.cache,l.filter,r,f.eq(h))):(C=null,k.each(e.filter.types,function(a,b){if(0>k.inArray(a,G)&&(t=b(q,l),null!==t))return C=t,!1}),null!==C?u=C:(l.exact=(l.iExact+l.childRowText).indexOf(e.filter.parseFilter(q,l.iFilter,r,l.parsed[r])),u=!v.filter_startsWith&&0<=l.exact||v.filter_startsWith&& 0===l.exact)),y=u?y:!1);f.eq(h).toggle(y).toggleClass(v.filter_filteredRow,!y);w.length&&w.toggleClass(v.filter_filteredRow,!y)}}q.filteredRows+=f.not("."+v.filter_filteredRow).length;q.totalRows+=f.length;e.processTbody(c,m,!1)}q.lastCombinedFilter=b;q.lastSearch=a;q.$table.data("lastSearch",a);v.filter_saveFilters&&e.storage&&e.storage(c,"tablesorter-filters",a);q.debug&&e.benchmark("Completed filter widget search",A);v.filter_initialized&&q.$table.trigger("filterEnd",q);setTimeout(function(){q.$table.trigger("applyWidgets")}, 0)}},getOptionSource:function(c,a,b){var d,f=c.config,h=[],g=!1,m=f.widgetOptions.filter_selectSource,n=f.$table.data("lastSearch")||[],p=k.isFunction(m)?!0:e.getColumnData(c,m,a);b&&""!==n[a]&&(b=!1);if(!0===p)g=m(c,a,b);else{if(p instanceof k||"string"===k.type(p)&&0<=p.indexOf("</option>"))return p;k.isArray(p)?g=p:"object"===k.type(m)&&p&&(g=p(c,a,b))}!1===g&&(g=e.filter.getOptions(c,a,b));g=k.grep(g,function(a,b){return k.inArray(a,g)===b});f.$headers.filter('[data-column="'+a+'"]:last').hasClass("filter-select-nosort")|| (k.each(g,function(b,d){h.push({t:d,p:f.parsers&&f.parsers[a].format(d,c,[],a)})}),d=f.textSorter||"",h.sort(function(b,f){var g=b.p.toString(),h=f.p.toString();return k.isFunction(d)?d(g,h,!0,a,c):"object"===typeof d&&d.hasOwnProperty(a)?d[a](g,h,!0,a,c):e.sortNatural?e.sortNatural(g,h):!0}),g=[],k.each(h,function(a,b){g.push(b.t)}));return g},getOptions:function(c,a,b){var d,e,h,g,m=c.config,n=m.widgetOptions,p=m.$table.children("tbody"),r=[];for(d=0;d<p.length;d++)if(!p.eq(d).hasClass(m.cssInfoBlock))for(g= m.cache[d],e=m.cache[d].normalized.length,c=0;c<e;c++)h=g.row?g.row[c]:g.normalized[c][m.columns].$row[0],b&&h.className.match(n.filter_filteredRow)||(n.filter_useParsedData||m.parsers[a].parsed||m.$headers.filter('[data-column="'+a+'"]:last').hasClass("filter-parsed")?r.push(""+g.normalized[c][a]):(h=h.cells[a])&&r.push(k.trim(h.textContent||h.innerText||k(h).text())));return r},buildSelect:function(c,a,b,d,f){c=k(c)[0];a=parseInt(a,10);if(c.config.cache&&!k.isEmptyObject(c.config.cache)){var h, g;g=c.config;var m=g.widgetOptions,n=g.$headers.filter('[data-column="'+a+'"]:last'),n='<option value="">'+(n.data("placeholder")||n.attr("data-placeholder")||m.filter_placeholder.select||"")+"</option>",p=g.$table.find("thead").find("select."+e.css.filter+'[data-column="'+a+'"]').val();if("undefined"===typeof b||""===b)b=e.filter.getOptionSource(c,a,f);if(k.isArray(b)){for(c=0;c<b.length;c++)f=h=b[c]=(""+b[c]).replace(/\"/g,"&quot;"),0<=h.indexOf(m.filter_selectSourceSeparator)&&(h=h.split(m.filter_selectSourceSeparator), f=h[0],h=h[1]),n+=""!==b[c]?"<option "+(f===h?"":'data-function-name="'+b[c]+'" ')+'value="'+f+'">'+h+"</option>":"";b=[]}g=(g.$filters?g.$filters:g.$table.children("thead")).find("."+e.css.filter);m.filter_$externalFilters&&(g=g&&g.length?g.add(m.filter_$externalFilters):m.filter_$externalFilters);a=g.filter('select[data-column="'+a+'"]');a.length&&(a[d?"html":"append"](n),k.isArray(b)||a.append(b).val(p),a.val(p))}},buildDefault:function(c,a){var b,d,f,h=c.config,g=h.widgetOptions,k=h.columns;for(b= 0;b<k;b++)d=h.$headers.filter('[data-column="'+b+'"]:last'),f=!(d.hasClass("filter-false")||d.hasClass("parser-false")),(d.hasClass("filter-select")||!0===e.getColumnData(c,g.filter_functions,b))&&f&&e.filter.buildSelect(c,b,"",a,d.hasClass(g.filter_onlyAvail))}}; e.getFilters=function(c,a,b,d){var f,h,g=!1,m=c?k(c)[0].config:"",n=m?m.widgetOptions:"";if(!0!==a&&n&&!n.filter_columnFilters)return k(c).data("lastSearch");if(m&&(m.$filters&&(f=m.$filters.find("."+e.css.filter)),n.filter_$externalFilters&& (f=f&&f.length?f.add(n.filter_$externalFilters):n.filter_$externalFilters),f&&f.length))for(g=b||[],c=0;c<m.columns+1;c++)h=c===m.columns?n.filter_anyColumnSelector+","+n.filter_multipleColumnSelector:'[data-column="'+c+'"]',a=f.filter(h),a.length&&(a=e.filter.getLatestSearch(a),k.isArray(b)?(d&&a.slice(1),c===m.columns&&(h=a.filter(n.filter_anyColumnSelector),a=h.length?h:a),a.val(b[c]).trigger("change.tsfilter")):(g[c]=a.val()||"",c===m.columns?a.slice(1).filter('[data-column*="'+a.attr("data-column")+ '"]').val(g[c]):a.slice(1).val(g[c])),c===m.columns&&a.length&&(n.filter_$anyMatch=a));0===g.length&&(g=!1);return g}; e.setFilters=function(c,a,b,d){var f=c?k(c)[0].config:"";c=e.getFilters(c,!0,a,d);f&&b&&(f.lastCombinedFilter=null,f.lastSearch=[],e.filter.searching(f.$table[0],a,d),f.$table.trigger("filterFomatterUpdate"));return!!c}; e.addWidget({id:"stickyHeaders",priority:60,options:{stickyHeaders:"",stickyHeaders_attachTo:null,stickyHeaders_xScroll:null,stickyHeaders_yScroll:null,stickyHeaders_offset:0, stickyHeaders_filteredToTop:!0,stickyHeaders_cloneId:"-sticky",stickyHeaders_addResizeEvent:!0,stickyHeaders_includeCaption:!0,stickyHeaders_zIndex:2},format:function(c,a,b){if(!(a.$table.hasClass("hasStickyHeaders")||0<=k.inArray("filter",a.widgets)&&!a.$table.hasClass("hasFilters"))){var d=a.$table,f=k(b.stickyHeaders_attachTo),h=a.namespace+"stickyheaders ",g=k(b.stickyHeaders_yScroll||b.stickyHeaders_attachTo||A),m=k(b.stickyHeaders_xScroll||b.stickyHeaders_attachTo||A),n=d.children("thead:first").children("tr").not(".sticky-false").children(), p=d.children("tfoot"),r=isNaN(b.stickyHeaders_offset)?k(b.stickyHeaders_offset):"",w=f.length?0:r.length?r.height()||0:parseInt(b.stickyHeaders_offset,10)||0,x=d.parent().closest("."+e.css.table).hasClass("hasStickyHeaders")?d.parent().closest("table.tablesorter")[0].config.widgetOptions.$sticky.parent():[],t=x.length?x.height():0,u=b.$sticky=d.clone().addClass("containsStickyHeaders "+e.css.sticky+" "+b.stickyHeaders).wrap('<div class="'+e.css.stickyWrap+'">'),y=u.parent().css({position:f.length? "absolute":"fixed",padding:parseInt(u.parent().parent().css("padding-left"),10),top:w+t,left:0,visibility:"hidden",zIndex:b.stickyHeaders_zIndex||2}),E=u.children("thead:first"),z,B="",C=0,G=function(a,b){a.filter(":visible").each(function(a){var d;a=b.filter(":visible").eq(a);var c=k(this);"border-box"===c.css("box-sizing")?d=c.outerWidth():"collapse"===a.css("border-collapse")?A.getComputedStyle?d=parseFloat(A.getComputedStyle(this,null).width):(d=parseFloat(c.css("border-width")),d=c.outerWidth()- parseFloat(c.css("padding-left"))-parseFloat(c.css("padding-right"))-d):d=c.width();a.css({"min-width":d,"max-width":d})})},D=function(){w=r.length?r.height()||0:parseInt(b.stickyHeaders_offset,10)||0;C=0;y.css({left:f.length?parseInt(f.css("padding-left"),10)||0:d.offset().left-parseInt(d.css("margin-left"),10)-m.scrollLeft()-C,width:d.outerWidth()});G(d,u);G(n,z)};u.attr("id")&&(u[0].id+=b.stickyHeaders_cloneId);u.find("thead:gt(0), tr.sticky-false").hide();u.find("tbody, tfoot").remove();u.find("caption").toggle(b.stickyHeaders_includeCaption); z=E.children().children();u.css({height:0,width:0,margin:0});z.find("."+e.css.resizer).remove();d.addClass("hasStickyHeaders").bind("pagerComplete"+h,function(){D()});e.bindEvents(c,E.children().children(".tablesorter-header"));d.after(y);a.onRenderHeader&&E.children("tr").children().each(function(b){a.onRenderHeader.apply(k(this),[b,a,u])});m.add(g).unbind(["scroll","resize",""].join(h)).bind(["scroll","resize",""].join(h),function(a){if(d.is(":visible")){t=x.length?x.offset().top-g.scrollTop()+ x.height():0;var b=d.offset(),c=k.isWindow(g[0]),e=k.isWindow(m[0]),h=(f.length?c?g.scrollTop():g.offset().top:g.scrollTop())+w+t,l=d.height()-(y.height()+(p.height()||0)),b=h>b.top&&h<b.top+l?"visible":"hidden",l={visibility:b};f.length&&(l.top=c?h:f.scrollTop());e&&(l.left=d.offset().left-parseInt(d.css("margin-left"),10)-m.scrollLeft()-C);x.length&&(l.top=(l.top||0)+w+t);y.removeClass("tablesorter-sticky-visible tablesorter-sticky-hidden").addClass("tablesorter-sticky-"+b).css(l);if(b!==B||"resize"=== a.type)D(),B=b}});b.stickyHeaders_addResizeEvent&&e.addHeaderResizeEvent(c);d.hasClass("hasFilters")&&b.filter_columnFilters&&(d.bind("filterEnd"+h,function(){var c=k(document.activeElement).closest("td"),c=c.parent().children().index(c);y.hasClass(e.css.stickyVis)&&b.stickyHeaders_filteredToTop&&(A.scrollTo(0,d.position().top),0<=c&&a.$filters&&a.$filters.eq(c).find("a, select, input").filter(":visible").focus())}),e.filter.bindSearch(d,z.find("."+e.css.filter)),b.filter_hideFilters&&e.filter.hideFilters(u, a));d.trigger("stickyHeadersInit")}},remove:function(c,a,b){var d=a.namespace+"stickyheaders ";a.$table.removeClass("hasStickyHeaders").unbind(["pagerComplete","filterEnd",""].join(d)).next("."+e.css.stickyWrap).remove();b.$sticky&&b.$sticky.length&&b.$sticky.remove();k(".hasStickyHeaders").length||k(A).add(b.stickyHeaders_xScroll).add(b.stickyHeaders_yScroll).add(b.stickyHeaders_attachTo).unbind(["scroll","resize",""].join(d));e.addHeaderResizeEvent(c,!1)}}); 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-/* tablesorter */ $(document).ready(function(){$('table').tablesorter({theme:'bootstrap',widgets:['uitheme','zebra','filter'],headerTemplate:'{content} {icon}',widthFixed:true,ignoreCase:true,widgetOptions:{filter_columnFilters:true,zebra:['even','odd'],filter_reset:'.reset'}});});
-/* treegrid */ $(document).ready(function(){$('.tracks-tree').treegrid({'treeColumn':1});});
-
-/* redirectPost */
-$.extend(
-{
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-    {
-        var form = '';
-        $.each(args, function(key, value) {
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-        });
-        $('<form action="' + location + '" method="POST">' + form + '</form>').appendTo('body').submit();
-    }
-});
+/* tablesorter */ $(document).ready(function(){$('table').tablesorter({theme:'bootstrap',widgets:['uitheme','zebra','filter'],headerTemplate:'{content} {icon}',widthFixed:true,ignoreCase:true,widgetOptions:{filter_columnFilters:true,zebra:['even','odd'],filter_reset:'.reset'}});}); 
+/* treegrid */ $(document).ready(function(){$('.tracks-tree').treegrid({'treeColumn':1});}); 
+ 
+/* redirectPost */ 
+$.extend( 
+{ 
+    redirectPost: function(location, args) 
+    { 
+        var form = ''; 
+        $.each(args, function(key, value) { 
+            form += '<input type="hidden" name="' + key + '" value="' + value + '">'; 
+        }); 
+        $('<form action="' + location + '" method="POST">' + form + '</form>').appendTo('body').submit(); 
+    } 
+}); 
diff --git a/library/cpp/lwtrace/mon/static/css/bootstrap.min.css b/library/cpp/lwtrace/mon/static/css/bootstrap.min.css
index f602cacbf8..361830c990 100644
--- a/library/cpp/lwtrace/mon/static/css/bootstrap.min.css
+++ b/library/cpp/lwtrace/mon/static/css/bootstrap.min.css
@@ -1,9 +1,9 @@
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- * Copyright 2013 Twitter, Inc.
- * Licensed under http://www.apache.org/licenses/LICENSE-2.0
- *
- * Designed and built with all the love in the world by @mdo and @fat.
- */
-
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+ * Bootstrap v3.0.2 by @fat and @mdo 
+ * Copyright 2013 Twitter, Inc. 
+ * Licensed under http://www.apache.org/licenses/LICENSE-2.0 
+ * 
+ * Designed and built with all the love in the world by @mdo and @fat. 
+ */ 
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diff --git a/library/cpp/lwtrace/mon/static/js/d3-gantt.js b/library/cpp/lwtrace/mon/static/js/d3-gantt.js
index 54ec38ae57..4e95ad347a 100644
--- a/library/cpp/lwtrace/mon/static/js/d3-gantt.js
+++ b/library/cpp/lwtrace/mon/static/js/d3-gantt.js
@@ -1,759 +1,759 @@
-d3.gantt = function() {
-    function gantt(config, logs, autoscale) {
-        parseLogs(config, logs);
-
-        if (autoscale) {
-            gantt.timeDomain([minT, maxT]);
-        }
-
-        initAxis();
-
-        // create svg element
-        svg = d3.select(selector)
-          .append("svg")
-            .attr("class", "chart")
-            .attr("width", width + margin.left + margin.right)
-            .attr("height", height + margin.top + margin.bottom)
-        ;
-
-        // create arrowhead marker
-        defs = svg.append("defs");
-        defs.append("marker")
-            .attr("id", "arrow")
-            .attr("viewBox", "0 -5 10 10")
-            .attr("refX", 5)
-            .attr("refY", 0)
-            .attr("markerWidth", 4)
-            .attr("markerHeight", 4)
-            .attr("orient", "auto")
-          .append("path")
-            .attr("d", "M0,-5L10,0L0,5")
-            .attr("class","arrowHead")
-        ;
-
-        zoom = d3.zoom()
-            .scaleExtent([0.1, 1000])
-            //.translateExtent([0, 0], [1000,0])
-            .on("zoom", function() {
-                if (tipShown != null) {
-                    tip.hide(tipShown);
-                }
-                var tr = d3.event.transform;
-                xZoomed = tr.rescaleX(x);
-                svg.select("g.x.axis").call(xAxis.scale(xZoomed));
-
-                var dy = d3.event.sourceEvent.screenY - zoom.startScreenY;
-                var newScrollTop = documentBodyScrollTop() - dy;
-                window.scrollTo(documentBodyScrollLeft(), newScrollTop);
-                documentBodyScrollTop(newScrollTop);
-                zoom.startScreenY = d3.event.sourceEvent.screenY;
-
-                zoomContainer1.attr("transform", "translate(" + tr.x + ",0) scale(" + tr.k + ",1)");
-                zoomContainer2.attr("transform", "translate(" + tr.x + ",0) scale(" + tr.k + ",1)");
-
-                render();
-            })
-            .on("start", function() {
-                zoom.startScreenY = d3.event.sourceEvent.screenY;
-            })
-            .on("end", function() {
-            })
-        ;
-
-        svgChartContainer = svg.append('g')
-            .attr("transform", "translate(" + margin.left + ", " + margin.top + ")")
-        ;
-        svgChart = svgChartContainer.append("svg")
-            .attr("top", 0)
-            .attr("left", 0)
-            .attr("width", width)
-            .attr("height", height)
-            .attr("viewBox", "0 0 " + width + " " + height)
-        ;
-
-        zoomContainer1 = svgChart.append("g");
-
-        zoomPanel = svgChart.append("rect")
-            .attr("class", "zoom-panel")
-            .attr("width", width)
-            .attr("height", height)
-            .call(zoom)
-        ;
-
-        zoomContainer2 = svgChart.append("g");
-        bandsSvg = zoomContainer2.append("g");
-
-        // tooltips for bands
-        var maxTipHeight = 130;
-        const tipDirection = d => y(d.band) - maxTipHeight < documentBodyScrollTop()? 's': 'n';
-        tip = d3.tip()
-            .attr("class", "d3-tip")
-            .offset(function(d) {
-                // compute x to return tip in chart region
-                var t0 = (d.t1 + d.t2) / 2;
-                var t1 = Math.min(Math.max(t0, xZoomed.invert(0)), xZoomed.invert(width));
-                var dir = tipDirection(d);
-                return [dir === 'n'? -10 : 10, xZoomed(t1) - xZoomed(t0)];
-            })
-            .direction(tipDirection)
-            .html(function(d) {
-                let text = '';
-                for (let item of d.record) {
-                    text += probes[item[PROBEID]].provider + "." + probes[item[PROBEID]].name + "(";
-                    let first = true;
-                    for (let [param, value] of Object.entries(item[PARAMS])) {
-                        text += (first? "": ", ") + param + "='" + value + "'";
-                        first = false;
-                    }
-                    text += ")\n";
-                }
-                return "<pre>" + text + "</pre>";
-            })
-        ;
-
-        bandsSvg.call(tip);
-
-        render();
-
-        // container for non-zoomable elements
-        fixedContainer = svg.append("g")
-            .attr("transform", "translate(" + margin.left + ", " + margin.top + ")")
-        ;
-
-        // create x axis
-        fixedContainer.append("g")
-            .attr("class", "x axis")
-            .attr("transform", "translate(0, " + (height - margin.top - margin.bottom) + ")")
-          .transition()
-            .call(xAxis)
-        ;
-
-        // create y axis
-        fixedContainer.append("g")
-            .attr("class", "y axis")
-          .transition()
-            .call(yAxis)
-        ;
-
-        // make y axis ticks draggable
-        var ytickdrag = d3.drag()
-            .on("drag", function(d) {
-                var ypos = d3.event.y - margin.top;
-                var index = Math.floor((ypos / y.step()));
-                index = Math.min(Math.max(index, 0), this.initDomain.length - 1);
-                if (index != this.curIndex) {
-                    var newDomain = [];
-                    for (var i = 0; i < this.initDomain.length; ++i) {
-                        newDomain.push(this.initDomain[i]);
-                    }
-                    newDomain.splice(this.initIndex, 1);
-                    newDomain.splice(index, 0, this.initDomain[this.initIndex]);
-
-                    this.curIndex = index;
-                    this.curDomain = newDomain;
-                    y.domain(newDomain);
-
-                    // rearange y scale and axis
-                    svg.select("g.y.axis").transition().call(yAxis);
-
-                    // rearange other stuff
-                    render(-1, true);
-                }
-            })
-            .on("start", function(d) {
-                var ypos = d3.event.y - margin.top;
-                this.initIndex = Math.floor((ypos / y.step()));
-                this.initDomain = y.domain();
-            })
-            .on("end", function(d) {
-                svg.select("g.y.axis").call(yAxis);
-            })
-        ;
-        svg.selectAll("g.y.axis .tick")
-            .call(ytickdrag)
-        ;
-
-        // right margin
-        var rmargin = fixedContainer.append("g")
-            .attr("id", "right-margin")
-            .attr("transform", "translate(" + width + ", 0)")
-        ;
-        rmargin.append("rect")
-            .attr("x", 0)
-            .attr("y", 0)
-            .attr("width", 1)
-            .attr("height", height - margin.top - margin.bottom)
-        ;
-
-        // top margin
-        var tmargin = fixedContainer.append("g")
-            .attr("id", "top-margin")
-            .attr("transform", "translate(0, 0)")
-        ;
-        tmargin.append("rect")
-            .attr("x", 0)
-            .attr("y", 0)
-            .attr("width", width)
-            .attr("height", 1)
-        ;
-
-        // ruler
-        ruler = fixedContainer.append("g")
-            .attr("id", "ruler")
-            .attr("transform", "translate(0, 0)")
-        ;
-        ruler.append("rect")
-            .attr("id", "ruler-line")
-            .attr("x", 0)
-            .attr("y", 0)
-            .attr("width", "1")
-            .attr("height", height - margin.top - margin.bottom + 8)
-        ;
-        ruler.append("rect")
-            .attr("id", "bgrect")
-            .attr("x", 0)
-            .attr("y", 0)
-            .attr("width", 0)
-            .attr("height", 0)
-            .style("fill", "white")
-        ;
-        ruler.append("text")
-            .attr("x", 0)
-            .attr("y", height - margin.top - margin.bottom + 16)
-            .attr("dy", "0.71em")
-            .text("0")
-        ;
-
-        svg.on('mousemove', function() {
-            positionRuler(d3.event.pageX);
-        });
-
-        // scroll handling
-        window.onscroll = function myFunction() {
-            documentBodyScrollLeft(document.body.scrollLeft);
-            documentBodyScrollTop(document.body.scrollTop);
-            var scroll = scrollParams();
-
-            svgChartContainer
-                .attr("transform", "translate(" + margin.left
-                                         + ", " + (margin.top + scroll.y1) + ")");
-            svgChart
-                .attr("viewBox", "0 " + scroll.y1 + " " + width + " " + scroll.h)
-                .attr("height", scroll.h);
-            tmargin
-                .attr("transform", "translate(0," + scroll.y1 + ")");
-            fixedContainer.select(".x.axis")
-                .attr("transform", "translate(0," + scroll.y2 + ")");
-            rmargin.select("rect")
-                .attr("y", scroll.y1)
-                .attr("height", scroll.h);
-            ruler.select("#ruler-line")
-                .attr("y", scroll.y1)
-                .attr("height", scroll.h);
-
-            positionRuler();
-        }
-
-        // render axis
-        svg.select("g.x.axis").call(xAxis);
-        svg.select("g.y.axis").call(yAxis);
-
-        // update to initiale state
-        window.onscroll(0);
-
-        return gantt;
-    }
-
-// private:
-
-    var keyFunction = function(d) {
-        return d.t1.toString() + d.t2.toString() + d.band.toString();
-    }
-
-    var bandTransform = function(d) {
-        return "translate(" + x(d.t1) + "," + y(d.band) + ")";
-    }
-
-    var xPixel = function(d) {
-        return xZoomed.invert(1) - xZoomed.invert(0);
-    }
-
-    var render = function(t0, smooth) {
-        // Save/restore last t0 value
-        if (!arguments.length || t0 == -1) {
-            t0 = render.t0;
-        }
-        render.t0 = t0;
-        smooth = smooth || false;
-
-        // Create rectangles for bands
-        bands = bandsSvg.selectAll("rect.bar")
-          .data(data, keyFunction);
-        bands.exit().remove();
-        bands.enter().append("rect")
-            .attr("class", "bar")
-            .attr("vector-effect", "non-scaling-stroke")
-            .style("fill", d => d.color)
-            .on('click', function(d) {
-                if (tipShown != d) {
-                    tipShown = d;
-                    tip.show(d);
-                } else {
-                    tipShown = null;
-                    tip.hide(d);
-                }
-            })
-          .merge(bands)
-          .transition().duration(smooth? 250: 0)
-            .attr("y", 0)
-            .attr("transform", bandTransform)
-            .attr("height", y.bandwidth())
-            .attr("width", d => Math.max(1*xPixel(), x(d.t2) - x(d.t1)))
-        ;
-
-        var emptyMarker = bandsSvg.selectAll("text")
-          .data(data.length == 0? ["no data to show"]: []);
-        emptyMarker.exit().remove();
-        emptyMarker.enter().append("text")
-            .text(d => d)
-        ;
-    }
-
-    function initAxis() {
-        x = d3.scaleLinear()
-            .domain([timeDomainStart, timeDomainEnd])
-            .range([0, width])
-            //.clamp(true); // dosn't work with zoom/pan
-        xZoomed = x;
-        y = d3.scaleBand()
-            .domain(Object.values(data).map(d => d.band).sort())
-            .rangeRound([0, height - margin.top - margin.bottom])
-            .padding(0.5);
-        xAxis = d3.axisBottom()
-            .scale(x)
-            //.tickSubdivide(true)
-            .tickSize(8)
-            .tickPadding(8);
-        yAxis = d3.axisLeft()
-            .scale(y)
-            .tickSize(0);
-    }
-
-    // slow function wrapper
-    var documentBodyScrollLeft = function(value) {
-        if (!arguments.length) {
-            if (documentBodyScrollLeft.value === undefined) {
-                documentBodyScrollLeft.value = document.body.scrollLeft;
-            }
-            return documentBodyScrollLeft.value;
-        } else {
-            documentBodyScrollLeft.value = value;
-        }
-    }
-
-    // slow function wrapper
-    var documentBodyScrollTop = function(value) {
-        if (!arguments.length) {
-            if (!documentBodyScrollTop.value === undefined) {
-                documentBodyScrollTop.value = document.body.scrollTop;
-            }
-            return documentBodyScrollTop.value;
-        } else {
-            documentBodyScrollTop.value = value;
-        }
-    }
-
-    var scrollParams = function() {
-        var y1 = documentBodyScrollTop();
-        var y2 = y1 + window.innerHeight - margin.footer;
-        y2 = Math.min(y2, height - margin.top - margin.bottom);
-        var h = y2 - y1;
-        return {
-            y1: y1,
-            y2: y2,
-            h: h
-        };
-    }
-
-    var posTextFormat = d3.format(".1f");
-
-    var positionRuler = function(pageX) {
-        if (!arguments.length) {
-            pageX = positionRuler.pageX || 0;
-        } else {
-            positionRuler.pageX = pageX;
-        }
-
-        // x-coordinate
-        if (!positionRuler.svgLeft) {
-            positionRuler.svgLeft = svg.node().getBoundingClientRect().x;
-        }
-
-        var xpos = pageX - margin.left + 1 - positionRuler.svgLeft;
-        var tpos = xZoomed.invert(xpos);
-        tpos = Math.min(Math.max(tpos, xZoomed.invert(0)), xZoomed.invert(width));
-        ruler.attr("transform", "translate(" + xZoomed(tpos) + ", 0)");
-        var posText = posTextFormat(tpos);
-
-        // scroll-related
-        var scroll = scrollParams();
-
-        var text = ruler.select("text")
-            .attr("y", scroll.y2 + 16)
-        ;
-
-        // getBBox() is very slow, so compute symbol width once
-        var xpadding = 5;
-        var ypadding = 5;
-        if (!positionRuler.bbox) {
-            positionRuler.bbox = text.node().getBBox();
-        }
-
-        text.text(posText);
-        var textWidth = 10 * posText.length;
-        ruler.select("#bgrect")
-            .attr("x", -textWidth/2 - xpadding)
-            .attr("y", positionRuler.bbox.y - ypadding)
-            .attr("width", textWidth + (xpadding*2))
-            .attr("height", positionRuler.bbox.height + (ypadding*2))
-        ;
-
-        render(tpos);
-    }
-
-    /*
-     * Log Query Language:
-     * Data expressions:
-     *  1) myparam[0], myparam[-1] // the first and the last myparam in any probe/provider
-     *  2) myparam // the first (the same as [0])
-     *  3) PROVIDER..myparam // any probe with myparam in PROVIDER
-     *  4) MyProbe._elapsedMs // Ms since track begin for the first MyProbe event
-     *  5) PROVIDER.MyProbe._sliceUs // Us since previous event in track for the first PROVIDER.MyProbe event
-     */
-    function compile(query) {
-        query = query.replace(/\s/g, "");
-        let [compiled, rest] = sum(query);
-        if (rest.length != 0) {
-            throw "parse error: unexpected expression starting at: '" + query + "'";
-        }
-        return record => {
-            try {
-                return compiled(record);
-            } catch (e) {
-                return null;
-            }
-        };
-
-        function sum(query) {
-            let term0;
-            if (query[0] == '-') {
-                let [term, rest] = product(query.substr(1));
-                query = rest;
-                term0 = x => -term(x);
-            } else {
-                let [term, rest] = product(query);
-                query = rest;
-                term0 = term;
-            }
-            let terms = [];
-            while (query.length > 0) {
-                let negate;
-                if (query[0] == '+') {
-                    negate = false;
-                } else if (query[0] == '-') {
-                    negate = true;
-                } else {
-                    break;
-                }
-                let [term, rest] = product(query.substr(1));
-                query = rest;
-                terms.push(negate? x => -term(x): term);
-            }
-            const cast = x => (isNaN(+x)? x: +x);
-            return [terms.reduce((a, f) => x => cast(a(x)) + cast(f(x)), term0), query];
-        }
-
-        function product(query) {
-            let [factor0, rest] = parentheses(query);
-            query = rest;
-            let factors = [];
-            while (query.length > 0) {
-                let invert;
-                if (query[0] == '*') {
-                    invert = false;
-                } else if (query[0] == '/') {
-                    invert = true;
-                } else {
-                    break;
-                }
-                let [factor, rest] = parentheses(query.substr(1));
-                query = rest;
-                factors.push(invert? x => 1 / factor(x): factor);
-            }
-            return [factors.reduce((a, f) => x => a(x) * f(x), factor0), query];
-        }
-
-        function parentheses(query) {
-            if (query[0] == "(") {
-                let [expr, rest] = sum(query.substr(1));
-                if (rest[0] != ")") {
-                    throw "parse error: missing ')' before '" + rest + "'";
-                }
-                return [expr, rest.substr(1)];
-            } else {
-                return atom(query);
-            }
-        }
-
-        function atom(query) {
-            specialParam = {
-                _thrNTime: item => (item[US] - thrNTimeZero) * 1e-6,
-                _thrRTime: item => (item[US] - thrRTimeZero) * 1e-6,
-                _thrTime: item => item[US] * 1e-6,
-                _thrNTimeMs: item => (item[US] - thrNTimeZero) * 1e-3,
-                _thrRTimeMs: item => (item[US] - thrRTimeZero) * 1e-3,
-                _thrTimeMs: item => item[US] * 1e-3,
-                _thrNTimeUs: item => item[US] - thrNTimeZero,
-                _thrRTimeUs: item => item[US] - thrRTimeZero,
-                _thrTimeUs: item => item[US],
-                _thrNTimeNs: item => (item[US] - thrNTimeZero) * 1e+3,
-                _thrRTimeNs: item => (item[US] - thrRTimeZero) * 1e+3,
-                _thrTimeNs: item => item[US] * 1e+3,
-                _thread: item => item[THREAD],
-            };
-            var match;
-            if (match = query.match(/^\d+(\.\d+)?/)) { // number literals
-                let literal = match[0];
-                return [record => literal, query.substr(match[0].length)];
-            } else if (match = query.match(/^#[0-9a-fA-F]+/)) { // color literals
-                let literal = match[0];
-                return [record => literal, query.substr(match[0].length)];
-            } else if (match = query.match(/^'(.*)'/)) { // string literal
-                let literal = match[1].replace(/\\'/, "'").replace(/\\\\/, "\\");
-                return [record => literal, query.substr(match[0].length)];
-            } else if (match = query.match(/^(?:(?:(\w+)\.)?(\w*)\.)?(\w+)(?:\[(-?\d+)\])?/)) {
-                let provider = match[1] || "";
-                let probe = match[2] || "";
-                let param = match[3];
-                let index = +(match[4] || 0);
-                let probeId = new Set();
-                for (let id = 0; id < probes.length; id++) {
-                    if ((!probe || probes[id].name == probe) &&
-                        (!provider || probes[id].provider == provider))
-                    {
-                        probeId.add(id);
-                    }
-                }
-                let isSpecial = specialParam.hasOwnProperty(param);
-                return [record => {
-                    let end = index >= 0? record.length: -1;
-                    let step = index >= 0? 1: -1;
-                    let skip = index >= 0? index: -index - 1;
-                    for (let i = index >= 0? 0: record.length - 1; i != end; i += step) {
-                        let item = record[i];
-                        if (probeId.has(item[PROBEID]) && (isSpecial || item[PARAMS].hasOwnProperty(param))) {
-                            if (skip == 0) {
-                                return isSpecial? specialParam[param](item): item[PARAMS][param];
-                            } else {
-                                skip--;
-                            }
-                        }
-                    }
-                    throw "no data";
-                }, query.substr(match[0].length)];
-            } else {
-                throw "parse error: invalid expression starting at '" + query + "'";
-            }
-        }
-    }
-
-    // ex1: "linear().domain([-1, 0, 1]).range(['red', 'white', 'green'])",
-    // ex2: "ordinal().domain(['a1', 'a2']).range(['blue', 'yellow'])"
-    function parseScale(query) {
-        query = query.replaceAll("'","\"");
-        var match, scale;
-        if (match = query.match(/^linear\(\)/)) {
-            scale = d3.scaleLinear();
-        } else if (match = query.match(/^pow\(\)/)) {
-            scale = d3.scalePow();
-        } else if (match = query.match(/^log\(\)/)) {
-            scale = d3.scaleLog();
-        } else if (match = query.match(/^identity\(\)/)) {
-            scale = d3.scaleIdentity();
-        } else if (match = query.match(/^time\(\)/)) {
-            scale = d3.scaleTime();
-        } else if (match = query.match(/^threshold\(\)/)) {
-            scale = d3.scaleThreshold();
-        } else if (match = query.match(/^ordinal\(\)/)) {
-            scale = d3.scaleOrdinal();
-        } else {
-            throw "Unable to parse scale: " + query;
-        }
-        if (match = query.match(/\.domain\(([^\)]+)\)/)) {
-            scale.domain(JSON.parse(match[1]));
-        }
-        if (match = query.match(/\.range\(([^\)]+)\)/)) {
-            scale.range(JSON.parse(match[1]));
-        }
-        if (match = query.match(/\.unknown\(([^\)]+)\)/)) {
-            scale.unknown(JSON.parse(match[1]));
-        }
-        return scale;
-    }
-
-    function parseLogs(config, logs) {
-        data = [];
-        probes = logs.probes;
-        if (config.hasOwnProperty('scales'))
-        for (let [name, text] of Object.entries(config.scales)) {
-            scales[name] = parseScale(text);
-        }
-        // Compute aggregates
-        let minUs = new Map();
-        for (record of logs.depot) {
-            if (record.length > 0) {
-                let item = record[0];
-                let us = item[US];
-                let thread = item[US];
-                if (!minUs.has(thread)) {
-                    minUs.set(thread, us);
-                } else {
-                    minUs.set(thread, Math.min(us, minUs.get(thread)));
-                }
-            }
-        }
-        thrNTimeZero = Number.MAX_VALUE;
-        thrRTimeZero = 0;
-        for (let [thread, us] of minUs) {
-            thrNTimeZero = Math.min(thrNTimeZero, us);
-            thrRTimeZero = Math.max(thrRTimeZero, us);
-        }
-        // Comple data for bands
-        for (let bandCfg of config.bands) {
-            function applyScale(func, scaleName) {
-                if (scaleName) {
-                    let scale = scales[scaleName];
-                    return (record) => {
-                        let value = func(record);
-                        if (value != null) {
-                            value = scale(value);
-                        }
-                        return value;
-                    };
-                } else {
-                    return func;
-                }
-            }
-            let t1f = applyScale(compile(bandCfg.t1), bandCfg.t1Scale);
-            let t2f = applyScale(compile(bandCfg.t2), bandCfg.t2Scale);
-            let bandf = applyScale(compile(bandCfg.band), bandCfg.bandScale);
-            let colorf = applyScale(compile(bandCfg.color), bandCfg.colorScale);
-            let minTime = Number.MAX_VALUE;
-            let maxTime = -Number.MAX_VALUE;
-            for (record of logs.depot) {
-                let t1 = t1f(record),
-                    t2 = t2f(record),
-                    band = bandf(record),
-                    color = colorf(record)
-                ;
-                if (t1 != null && t2 != null && band != null && color != null) {
-                    data.push({t1, t2, band, color, record});
-                    minTime = Math.min(minTime, t1);
-                    maxTime = Math.max(maxTime, t2);
-                }
-            }
-            if (minTime != Number.MAX_VALUE) {
-                minT = minTime;
-                maxT = maxTime;
-            }
-        }
-    }
-
-// public:
-
-    gantt.width = function(value) {
-        if (!arguments.length)
-            return width;
-        width = +value;
-        return gantt;
-    }
-
-    gantt.height = function(value) {
-        if (!arguments.length)
-            return height;
-        height = +value;
-        return gantt;
-    }
-
-    gantt.selector = function(value) {
-        if (!arguments.length)
-            return selector;
-        selector = value;
-        return gantt;
-    }
-
-    gantt.timeDomain = function(value) {
-        if (!arguments.length)
-            return [timeDomainStart, timeDomainEnd];
-        timeDomainStart = value[0];
-        timeDomainEnd = value[1];
-        return gantt;
-    }
-
-    gantt.data = function() {
-        return data;
-    }
-
-    // constructor
-
-    // Log Format
-    const
-        THREAD = 0,
-        US = 1,
-        PROBEID = 2,
-        PARAMS = 3
-    ;
-
-    // Config
-    var margin = { top: 20, right: 40, bottom: 20, left: 100, footer: 100 },
-        height = document.body.clientHeight - margin.top - margin.bottom - 5,
-        width = document.body.clientWidth - margin.right - margin.left - 5,
-        selector = 'body',
-        timeDomainStart = 0,
-        timeDomainEnd = 1000,
-        scales = {};
-    ;
-
-    // View
-    var x = null,
-        xZoomed = null,
-        y = null,
-        xAxis = null,
-        yAxis = null,
-        svg = null,
-        defs = null,
-        svgChartContainer = null,
-        svgChart = null,
-        zoomPanel = null,
-        zoomContainer1 = null,
-        zoomContainer2 = null,
-        fixedContainer = null,
-        zoom = null,
-        bandsSvg = null,
-        bands = null,
-        tip = null,
-        tipShown = null,
-        ruler = null
-    ;
-
-    // Model
-    var data = null,
-        probes = null,
-        thrRTimeZero = 0,
-        thrNTimeZero = 0,
-        minT,
-        maxT
-    ;
-
-    return gantt;
-}
\ No newline at end of file
+d3.gantt = function() { 
+    function gantt(config, logs, autoscale) { 
+        parseLogs(config, logs); 
+ 
+        if (autoscale) { 
+            gantt.timeDomain([minT, maxT]); 
+        } 
+ 
+        initAxis(); 
+ 
+        // create svg element 
+        svg = d3.select(selector) 
+          .append("svg") 
+            .attr("class", "chart") 
+            .attr("width", width + margin.left + margin.right) 
+            .attr("height", height + margin.top + margin.bottom) 
+        ; 
+ 
+        // create arrowhead marker 
+        defs = svg.append("defs"); 
+        defs.append("marker") 
+            .attr("id", "arrow") 
+            .attr("viewBox", "0 -5 10 10") 
+            .attr("refX", 5) 
+            .attr("refY", 0) 
+            .attr("markerWidth", 4) 
+            .attr("markerHeight", 4) 
+            .attr("orient", "auto") 
+          .append("path") 
+            .attr("d", "M0,-5L10,0L0,5") 
+            .attr("class","arrowHead") 
+        ; 
+ 
+        zoom = d3.zoom() 
+            .scaleExtent([0.1, 1000]) 
+            //.translateExtent([0, 0], [1000,0]) 
+            .on("zoom", function() { 
+                if (tipShown != null) { 
+                    tip.hide(tipShown); 
+                } 
+                var tr = d3.event.transform; 
+                xZoomed = tr.rescaleX(x); 
+                svg.select("g.x.axis").call(xAxis.scale(xZoomed)); 
+ 
+                var dy = d3.event.sourceEvent.screenY - zoom.startScreenY; 
+                var newScrollTop = documentBodyScrollTop() - dy; 
+                window.scrollTo(documentBodyScrollLeft(), newScrollTop); 
+                documentBodyScrollTop(newScrollTop); 
+                zoom.startScreenY = d3.event.sourceEvent.screenY; 
+ 
+                zoomContainer1.attr("transform", "translate(" + tr.x + ",0) scale(" + tr.k + ",1)"); 
+                zoomContainer2.attr("transform", "translate(" + tr.x + ",0) scale(" + tr.k + ",1)"); 
+ 
+                render(); 
+            }) 
+            .on("start", function() { 
+                zoom.startScreenY = d3.event.sourceEvent.screenY; 
+            }) 
+            .on("end", function() { 
+            }) 
+        ; 
+ 
+        svgChartContainer = svg.append('g') 
+            .attr("transform", "translate(" + margin.left + ", " + margin.top + ")") 
+        ; 
+        svgChart = svgChartContainer.append("svg") 
+            .attr("top", 0) 
+            .attr("left", 0) 
+            .attr("width", width) 
+            .attr("height", height) 
+            .attr("viewBox", "0 0 " + width + " " + height) 
+        ; 
+ 
+        zoomContainer1 = svgChart.append("g"); 
+ 
+        zoomPanel = svgChart.append("rect") 
+            .attr("class", "zoom-panel") 
+            .attr("width", width) 
+            .attr("height", height) 
+            .call(zoom) 
+        ; 
+ 
+        zoomContainer2 = svgChart.append("g"); 
+        bandsSvg = zoomContainer2.append("g"); 
+ 
+        // tooltips for bands 
+        var maxTipHeight = 130; 
+        const tipDirection = d => y(d.band) - maxTipHeight < documentBodyScrollTop()? 's': 'n'; 
+        tip = d3.tip() 
+            .attr("class", "d3-tip") 
+            .offset(function(d) { 
+                // compute x to return tip in chart region 
+                var t0 = (d.t1 + d.t2) / 2; 
+                var t1 = Math.min(Math.max(t0, xZoomed.invert(0)), xZoomed.invert(width)); 
+                var dir = tipDirection(d); 
+                return [dir === 'n'? -10 : 10, xZoomed(t1) - xZoomed(t0)]; 
+            }) 
+            .direction(tipDirection) 
+            .html(function(d) { 
+                let text = ''; 
+                for (let item of d.record) { 
+                    text += probes[item[PROBEID]].provider + "." + probes[item[PROBEID]].name + "("; 
+                    let first = true; 
+                    for (let [param, value] of Object.entries(item[PARAMS])) { 
+                        text += (first? "": ", ") + param + "='" + value + "'"; 
+                        first = false; 
+                    } 
+                    text += ")\n"; 
+                } 
+                return "<pre>" + text + "</pre>"; 
+            }) 
+        ; 
+ 
+        bandsSvg.call(tip); 
+ 
+        render(); 
+ 
+        // container for non-zoomable elements 
+        fixedContainer = svg.append("g") 
+            .attr("transform", "translate(" + margin.left + ", " + margin.top + ")") 
+        ; 
+ 
+        // create x axis 
+        fixedContainer.append("g") 
+            .attr("class", "x axis") 
+            .attr("transform", "translate(0, " + (height - margin.top - margin.bottom) + ")") 
+          .transition() 
+            .call(xAxis) 
+        ; 
+ 
+        // create y axis 
+        fixedContainer.append("g") 
+            .attr("class", "y axis") 
+          .transition() 
+            .call(yAxis) 
+        ; 
+ 
+        // make y axis ticks draggable 
+        var ytickdrag = d3.drag() 
+            .on("drag", function(d) { 
+                var ypos = d3.event.y - margin.top; 
+                var index = Math.floor((ypos / y.step())); 
+                index = Math.min(Math.max(index, 0), this.initDomain.length - 1); 
+                if (index != this.curIndex) { 
+                    var newDomain = []; 
+                    for (var i = 0; i < this.initDomain.length; ++i) { 
+                        newDomain.push(this.initDomain[i]); 
+                    } 
+                    newDomain.splice(this.initIndex, 1); 
+                    newDomain.splice(index, 0, this.initDomain[this.initIndex]); 
+ 
+                    this.curIndex = index; 
+                    this.curDomain = newDomain; 
+                    y.domain(newDomain); 
+ 
+                    // rearange y scale and axis 
+                    svg.select("g.y.axis").transition().call(yAxis); 
+ 
+                    // rearange other stuff 
+                    render(-1, true); 
+                } 
+            }) 
+            .on("start", function(d) { 
+                var ypos = d3.event.y - margin.top; 
+                this.initIndex = Math.floor((ypos / y.step())); 
+                this.initDomain = y.domain(); 
+            }) 
+            .on("end", function(d) { 
+                svg.select("g.y.axis").call(yAxis); 
+            }) 
+        ; 
+        svg.selectAll("g.y.axis .tick") 
+            .call(ytickdrag) 
+        ; 
+ 
+        // right margin 
+        var rmargin = fixedContainer.append("g") 
+            .attr("id", "right-margin") 
+            .attr("transform", "translate(" + width + ", 0)") 
+        ; 
+        rmargin.append("rect") 
+            .attr("x", 0) 
+            .attr("y", 0) 
+            .attr("width", 1) 
+            .attr("height", height - margin.top - margin.bottom) 
+        ; 
+ 
+        // top margin 
+        var tmargin = fixedContainer.append("g") 
+            .attr("id", "top-margin") 
+            .attr("transform", "translate(0, 0)") 
+        ; 
+        tmargin.append("rect") 
+            .attr("x", 0) 
+            .attr("y", 0) 
+            .attr("width", width) 
+            .attr("height", 1) 
+        ; 
+ 
+        // ruler 
+        ruler = fixedContainer.append("g") 
+            .attr("id", "ruler") 
+            .attr("transform", "translate(0, 0)") 
+        ; 
+        ruler.append("rect") 
+            .attr("id", "ruler-line") 
+            .attr("x", 0) 
+            .attr("y", 0) 
+            .attr("width", "1") 
+            .attr("height", height - margin.top - margin.bottom + 8) 
+        ; 
+        ruler.append("rect") 
+            .attr("id", "bgrect") 
+            .attr("x", 0) 
+            .attr("y", 0) 
+            .attr("width", 0) 
+            .attr("height", 0) 
+            .style("fill", "white") 
+        ; 
+        ruler.append("text") 
+            .attr("x", 0) 
+            .attr("y", height - margin.top - margin.bottom + 16) 
+            .attr("dy", "0.71em") 
+            .text("0") 
+        ; 
+ 
+        svg.on('mousemove', function() { 
+            positionRuler(d3.event.pageX); 
+        }); 
+ 
+        // scroll handling 
+        window.onscroll = function myFunction() { 
+            documentBodyScrollLeft(document.body.scrollLeft); 
+            documentBodyScrollTop(document.body.scrollTop); 
+            var scroll = scrollParams(); 
+ 
+            svgChartContainer 
+                .attr("transform", "translate(" + margin.left 
+                                         + ", " + (margin.top + scroll.y1) + ")"); 
+            svgChart 
+                .attr("viewBox", "0 " + scroll.y1 + " " + width + " " + scroll.h) 
+                .attr("height", scroll.h); 
+            tmargin 
+                .attr("transform", "translate(0," + scroll.y1 + ")"); 
+            fixedContainer.select(".x.axis") 
+                .attr("transform", "translate(0," + scroll.y2 + ")"); 
+            rmargin.select("rect") 
+                .attr("y", scroll.y1) 
+                .attr("height", scroll.h); 
+            ruler.select("#ruler-line") 
+                .attr("y", scroll.y1) 
+                .attr("height", scroll.h); 
+ 
+            positionRuler(); 
+        } 
+ 
+        // render axis 
+        svg.select("g.x.axis").call(xAxis); 
+        svg.select("g.y.axis").call(yAxis); 
+ 
+        // update to initiale state 
+        window.onscroll(0); 
+ 
+        return gantt; 
+    } 
+ 
+// private: 
+ 
+    var keyFunction = function(d) { 
+        return d.t1.toString() + d.t2.toString() + d.band.toString(); 
+    } 
+ 
+    var bandTransform = function(d) { 
+        return "translate(" + x(d.t1) + "," + y(d.band) + ")"; 
+    } 
+ 
+    var xPixel = function(d) { 
+        return xZoomed.invert(1) - xZoomed.invert(0); 
+    } 
+ 
+    var render = function(t0, smooth) { 
+        // Save/restore last t0 value 
+        if (!arguments.length || t0 == -1) { 
+            t0 = render.t0; 
+        } 
+        render.t0 = t0; 
+        smooth = smooth || false; 
+ 
+        // Create rectangles for bands 
+        bands = bandsSvg.selectAll("rect.bar") 
+          .data(data, keyFunction); 
+        bands.exit().remove(); 
+        bands.enter().append("rect") 
+            .attr("class", "bar") 
+            .attr("vector-effect", "non-scaling-stroke") 
+            .style("fill", d => d.color) 
+            .on('click', function(d) { 
+                if (tipShown != d) { 
+                    tipShown = d; 
+                    tip.show(d); 
+                } else { 
+                    tipShown = null; 
+                    tip.hide(d); 
+                } 
+            }) 
+          .merge(bands) 
+          .transition().duration(smooth? 250: 0) 
+            .attr("y", 0) 
+            .attr("transform", bandTransform) 
+            .attr("height", y.bandwidth()) 
+            .attr("width", d => Math.max(1*xPixel(), x(d.t2) - x(d.t1))) 
+        ; 
+ 
+        var emptyMarker = bandsSvg.selectAll("text") 
+          .data(data.length == 0? ["no data to show"]: []); 
+        emptyMarker.exit().remove(); 
+        emptyMarker.enter().append("text") 
+            .text(d => d) 
+        ; 
+    } 
+ 
+    function initAxis() { 
+        x = d3.scaleLinear() 
+            .domain([timeDomainStart, timeDomainEnd]) 
+            .range([0, width]) 
+            //.clamp(true); // dosn't work with zoom/pan 
+        xZoomed = x; 
+        y = d3.scaleBand() 
+            .domain(Object.values(data).map(d => d.band).sort()) 
+            .rangeRound([0, height - margin.top - margin.bottom]) 
+            .padding(0.5); 
+        xAxis = d3.axisBottom() 
+            .scale(x) 
+            //.tickSubdivide(true) 
+            .tickSize(8) 
+            .tickPadding(8); 
+        yAxis = d3.axisLeft() 
+            .scale(y) 
+            .tickSize(0); 
+    } 
+ 
+    // slow function wrapper 
+    var documentBodyScrollLeft = function(value) { 
+        if (!arguments.length) { 
+            if (documentBodyScrollLeft.value === undefined) { 
+                documentBodyScrollLeft.value = document.body.scrollLeft; 
+            } 
+            return documentBodyScrollLeft.value; 
+        } else { 
+            documentBodyScrollLeft.value = value; 
+        } 
+    } 
+ 
+    // slow function wrapper 
+    var documentBodyScrollTop = function(value) { 
+        if (!arguments.length) { 
+            if (!documentBodyScrollTop.value === undefined) { 
+                documentBodyScrollTop.value = document.body.scrollTop; 
+            } 
+            return documentBodyScrollTop.value; 
+        } else { 
+            documentBodyScrollTop.value = value; 
+        } 
+    } 
+ 
+    var scrollParams = function() { 
+        var y1 = documentBodyScrollTop(); 
+        var y2 = y1 + window.innerHeight - margin.footer; 
+        y2 = Math.min(y2, height - margin.top - margin.bottom); 
+        var h = y2 - y1; 
+        return { 
+            y1: y1, 
+            y2: y2, 
+            h: h 
+        }; 
+    } 
+ 
+    var posTextFormat = d3.format(".1f"); 
+ 
+    var positionRuler = function(pageX) { 
+        if (!arguments.length) { 
+            pageX = positionRuler.pageX || 0; 
+        } else { 
+            positionRuler.pageX = pageX; 
+        } 
+ 
+        // x-coordinate 
+        if (!positionRuler.svgLeft) { 
+            positionRuler.svgLeft = svg.node().getBoundingClientRect().x; 
+        } 
+ 
+        var xpos = pageX - margin.left + 1 - positionRuler.svgLeft; 
+        var tpos = xZoomed.invert(xpos); 
+        tpos = Math.min(Math.max(tpos, xZoomed.invert(0)), xZoomed.invert(width)); 
+        ruler.attr("transform", "translate(" + xZoomed(tpos) + ", 0)"); 
+        var posText = posTextFormat(tpos); 
+ 
+        // scroll-related 
+        var scroll = scrollParams(); 
+ 
+        var text = ruler.select("text") 
+            .attr("y", scroll.y2 + 16) 
+        ; 
+ 
+        // getBBox() is very slow, so compute symbol width once 
+        var xpadding = 5; 
+        var ypadding = 5; 
+        if (!positionRuler.bbox) { 
+            positionRuler.bbox = text.node().getBBox(); 
+        } 
+ 
+        text.text(posText); 
+        var textWidth = 10 * posText.length; 
+        ruler.select("#bgrect") 
+            .attr("x", -textWidth/2 - xpadding) 
+            .attr("y", positionRuler.bbox.y - ypadding) 
+            .attr("width", textWidth + (xpadding*2)) 
+            .attr("height", positionRuler.bbox.height + (ypadding*2)) 
+        ; 
+ 
+        render(tpos); 
+    } 
+ 
+    /* 
+     * Log Query Language: 
+     * Data expressions: 
+     *  1) myparam[0], myparam[-1] // the first and the last myparam in any probe/provider 
+     *  2) myparam // the first (the same as [0]) 
+     *  3) PROVIDER..myparam // any probe with myparam in PROVIDER 
+     *  4) MyProbe._elapsedMs // Ms since track begin for the first MyProbe event 
+     *  5) PROVIDER.MyProbe._sliceUs // Us since previous event in track for the first PROVIDER.MyProbe event 
+     */ 
+    function compile(query) { 
+        query = query.replace(/\s/g, ""); 
+        let [compiled, rest] = sum(query); 
+        if (rest.length != 0) { 
+            throw "parse error: unexpected expression starting at: '" + query + "'"; 
+        } 
+        return record => { 
+            try { 
+                return compiled(record); 
+            } catch (e) { 
+                return null; 
+            } 
+        }; 
+ 
+        function sum(query) { 
+            let term0; 
+            if (query[0] == '-') { 
+                let [term, rest] = product(query.substr(1)); 
+                query = rest; 
+                term0 = x => -term(x); 
+            } else { 
+                let [term, rest] = product(query); 
+                query = rest; 
+                term0 = term; 
+            } 
+            let terms = []; 
+            while (query.length > 0) { 
+                let negate; 
+                if (query[0] == '+') { 
+                    negate = false; 
+                } else if (query[0] == '-') { 
+                    negate = true; 
+                } else { 
+                    break; 
+                } 
+                let [term, rest] = product(query.substr(1)); 
+                query = rest; 
+                terms.push(negate? x => -term(x): term); 
+            } 
+            const cast = x => (isNaN(+x)? x: +x); 
+            return [terms.reduce((a, f) => x => cast(a(x)) + cast(f(x)), term0), query]; 
+        } 
+ 
+        function product(query) { 
+            let [factor0, rest] = parentheses(query); 
+            query = rest; 
+            let factors = []; 
+            while (query.length > 0) { 
+                let invert; 
+                if (query[0] == '*') { 
+                    invert = false; 
+                } else if (query[0] == '/') { 
+                    invert = true; 
+                } else { 
+                    break; 
+                } 
+                let [factor, rest] = parentheses(query.substr(1)); 
+                query = rest; 
+                factors.push(invert? x => 1 / factor(x): factor); 
+            } 
+            return [factors.reduce((a, f) => x => a(x) * f(x), factor0), query]; 
+        } 
+ 
+        function parentheses(query) { 
+            if (query[0] == "(") { 
+                let [expr, rest] = sum(query.substr(1)); 
+                if (rest[0] != ")") { 
+                    throw "parse error: missing ')' before '" + rest + "'"; 
+                } 
+                return [expr, rest.substr(1)]; 
+            } else { 
+                return atom(query); 
+            } 
+        } 
+ 
+        function atom(query) { 
+            specialParam = { 
+                _thrNTime: item => (item[US] - thrNTimeZero) * 1e-6, 
+                _thrRTime: item => (item[US] - thrRTimeZero) * 1e-6, 
+                _thrTime: item => item[US] * 1e-6, 
+                _thrNTimeMs: item => (item[US] - thrNTimeZero) * 1e-3, 
+                _thrRTimeMs: item => (item[US] - thrRTimeZero) * 1e-3, 
+                _thrTimeMs: item => item[US] * 1e-3, 
+                _thrNTimeUs: item => item[US] - thrNTimeZero, 
+                _thrRTimeUs: item => item[US] - thrRTimeZero, 
+                _thrTimeUs: item => item[US], 
+                _thrNTimeNs: item => (item[US] - thrNTimeZero) * 1e+3, 
+                _thrRTimeNs: item => (item[US] - thrRTimeZero) * 1e+3, 
+                _thrTimeNs: item => item[US] * 1e+3, 
+                _thread: item => item[THREAD], 
+            }; 
+            var match; 
+            if (match = query.match(/^\d+(\.\d+)?/)) { // number literals 
+                let literal = match[0]; 
+                return [record => literal, query.substr(match[0].length)]; 
+            } else if (match = query.match(/^#[0-9a-fA-F]+/)) { // color literals 
+                let literal = match[0]; 
+                return [record => literal, query.substr(match[0].length)]; 
+            } else if (match = query.match(/^'(.*)'/)) { // string literal 
+                let literal = match[1].replace(/\\'/, "'").replace(/\\\\/, "\\"); 
+                return [record => literal, query.substr(match[0].length)]; 
+            } else if (match = query.match(/^(?:(?:(\w+)\.)?(\w*)\.)?(\w+)(?:\[(-?\d+)\])?/)) { 
+                let provider = match[1] || ""; 
+                let probe = match[2] || ""; 
+                let param = match[3]; 
+                let index = +(match[4] || 0); 
+                let probeId = new Set(); 
+                for (let id = 0; id < probes.length; id++) { 
+                    if ((!probe || probes[id].name == probe) && 
+                        (!provider || probes[id].provider == provider)) 
+                    { 
+                        probeId.add(id); 
+                    } 
+                } 
+                let isSpecial = specialParam.hasOwnProperty(param); 
+                return [record => { 
+                    let end = index >= 0? record.length: -1; 
+                    let step = index >= 0? 1: -1; 
+                    let skip = index >= 0? index: -index - 1; 
+                    for (let i = index >= 0? 0: record.length - 1; i != end; i += step) { 
+                        let item = record[i]; 
+                        if (probeId.has(item[PROBEID]) && (isSpecial || item[PARAMS].hasOwnProperty(param))) { 
+                            if (skip == 0) { 
+                                return isSpecial? specialParam[param](item): item[PARAMS][param]; 
+                            } else { 
+                                skip--; 
+                            } 
+                        } 
+                    } 
+                    throw "no data"; 
+                }, query.substr(match[0].length)]; 
+            } else { 
+                throw "parse error: invalid expression starting at '" + query + "'"; 
+            } 
+        } 
+    } 
+ 
+    // ex1: "linear().domain([-1, 0, 1]).range(['red', 'white', 'green'])", 
+    // ex2: "ordinal().domain(['a1', 'a2']).range(['blue', 'yellow'])" 
+    function parseScale(query) { 
+        query = query.replaceAll("'","\""); 
+        var match, scale; 
+        if (match = query.match(/^linear\(\)/)) { 
+            scale = d3.scaleLinear(); 
+        } else if (match = query.match(/^pow\(\)/)) { 
+            scale = d3.scalePow(); 
+        } else if (match = query.match(/^log\(\)/)) { 
+            scale = d3.scaleLog(); 
+        } else if (match = query.match(/^identity\(\)/)) { 
+            scale = d3.scaleIdentity(); 
+        } else if (match = query.match(/^time\(\)/)) { 
+            scale = d3.scaleTime(); 
+        } else if (match = query.match(/^threshold\(\)/)) { 
+            scale = d3.scaleThreshold(); 
+        } else if (match = query.match(/^ordinal\(\)/)) { 
+            scale = d3.scaleOrdinal(); 
+        } else { 
+            throw "Unable to parse scale: " + query; 
+        } 
+        if (match = query.match(/\.domain\(([^\)]+)\)/)) { 
+            scale.domain(JSON.parse(match[1])); 
+        } 
+        if (match = query.match(/\.range\(([^\)]+)\)/)) { 
+            scale.range(JSON.parse(match[1])); 
+        } 
+        if (match = query.match(/\.unknown\(([^\)]+)\)/)) { 
+            scale.unknown(JSON.parse(match[1])); 
+        } 
+        return scale; 
+    } 
+ 
+    function parseLogs(config, logs) { 
+        data = []; 
+        probes = logs.probes; 
+        if (config.hasOwnProperty('scales')) 
+        for (let [name, text] of Object.entries(config.scales)) { 
+            scales[name] = parseScale(text); 
+        } 
+        // Compute aggregates 
+        let minUs = new Map(); 
+        for (record of logs.depot) { 
+            if (record.length > 0) { 
+                let item = record[0]; 
+                let us = item[US]; 
+                let thread = item[US]; 
+                if (!minUs.has(thread)) { 
+                    minUs.set(thread, us); 
+                } else { 
+                    minUs.set(thread, Math.min(us, minUs.get(thread))); 
+                } 
+            } 
+        } 
+        thrNTimeZero = Number.MAX_VALUE; 
+        thrRTimeZero = 0; 
+        for (let [thread, us] of minUs) { 
+            thrNTimeZero = Math.min(thrNTimeZero, us); 
+            thrRTimeZero = Math.max(thrRTimeZero, us); 
+        } 
+        // Comple data for bands 
+        for (let bandCfg of config.bands) { 
+            function applyScale(func, scaleName) { 
+                if (scaleName) { 
+                    let scale = scales[scaleName]; 
+                    return (record) => { 
+                        let value = func(record); 
+                        if (value != null) { 
+                            value = scale(value); 
+                        } 
+                        return value; 
+                    }; 
+                } else { 
+                    return func; 
+                } 
+            } 
+            let t1f = applyScale(compile(bandCfg.t1), bandCfg.t1Scale); 
+            let t2f = applyScale(compile(bandCfg.t2), bandCfg.t2Scale); 
+            let bandf = applyScale(compile(bandCfg.band), bandCfg.bandScale); 
+            let colorf = applyScale(compile(bandCfg.color), bandCfg.colorScale); 
+            let minTime = Number.MAX_VALUE; 
+            let maxTime = -Number.MAX_VALUE; 
+            for (record of logs.depot) { 
+                let t1 = t1f(record), 
+                    t2 = t2f(record), 
+                    band = bandf(record), 
+                    color = colorf(record) 
+                ; 
+                if (t1 != null && t2 != null && band != null && color != null) { 
+                    data.push({t1, t2, band, color, record}); 
+                    minTime = Math.min(minTime, t1); 
+                    maxTime = Math.max(maxTime, t2); 
+                } 
+            } 
+            if (minTime != Number.MAX_VALUE) { 
+                minT = minTime; 
+                maxT = maxTime; 
+            } 
+        } 
+    } 
+ 
+// public: 
+ 
+    gantt.width = function(value) { 
+        if (!arguments.length) 
+            return width; 
+        width = +value; 
+        return gantt; 
+    } 
+ 
+    gantt.height = function(value) { 
+        if (!arguments.length) 
+            return height; 
+        height = +value; 
+        return gantt; 
+    } 
+ 
+    gantt.selector = function(value) { 
+        if (!arguments.length) 
+            return selector; 
+        selector = value; 
+        return gantt; 
+    } 
+ 
+    gantt.timeDomain = function(value) { 
+        if (!arguments.length) 
+            return [timeDomainStart, timeDomainEnd]; 
+        timeDomainStart = value[0]; 
+        timeDomainEnd = value[1]; 
+        return gantt; 
+    } 
+ 
+    gantt.data = function() { 
+        return data; 
+    } 
+ 
+    // constructor 
+ 
+    // Log Format 
+    const 
+        THREAD = 0, 
+        US = 1, 
+        PROBEID = 2, 
+        PARAMS = 3 
+    ; 
+ 
+    // Config 
+    var margin = { top: 20, right: 40, bottom: 20, left: 100, footer: 100 }, 
+        height = document.body.clientHeight - margin.top - margin.bottom - 5, 
+        width = document.body.clientWidth - margin.right - margin.left - 5, 
+        selector = 'body', 
+        timeDomainStart = 0, 
+        timeDomainEnd = 1000, 
+        scales = {}; 
+    ; 
+ 
+    // View 
+    var x = null, 
+        xZoomed = null, 
+        y = null, 
+        xAxis = null, 
+        yAxis = null, 
+        svg = null, 
+        defs = null, 
+        svgChartContainer = null, 
+        svgChart = null, 
+        zoomPanel = null, 
+        zoomContainer1 = null, 
+        zoomContainer2 = null, 
+        fixedContainer = null, 
+        zoom = null, 
+        bandsSvg = null, 
+        bands = null, 
+        tip = null, 
+        tipShown = null, 
+        ruler = null 
+    ; 
+ 
+    // Model 
+    var data = null, 
+        probes = null, 
+        thrRTimeZero = 0, 
+        thrNTimeZero = 0, 
+        minT, 
+        maxT 
+    ; 
+ 
+    return gantt; 
+} 
\ No newline at end of file
diff --git a/library/cpp/lwtrace/mon/static/js/d3-tip-0.8.0-alpha.1.js b/library/cpp/lwtrace/mon/static/js/d3-tip-0.8.0-alpha.1.js
index ad3a6c0d19..2b2e61ad4c 100644
--- a/library/cpp/lwtrace/mon/static/js/d3-tip-0.8.0-alpha.1.js
+++ b/library/cpp/lwtrace/mon/static/js/d3-tip-0.8.0-alpha.1.js
@@ -1,352 +1,352 @@
-/**
- * d3.tip
- * Copyright (c) 2013 Justin Palmer
- *
- * Tooltips for d3.js SVG visualizations
- */
-// eslint-disable-next-line no-extra-semi
-;(function(root, factory) {
-  if (typeof define === 'function' && define.amd) {
-    // AMD. Register as an anonymous module with d3 as a dependency.
-    define([
-      'd3-collection',
-      'd3-selection'
-    ], factory)
-  } else if (typeof module === 'object' && module.exports) {
-    /* eslint-disable global-require */
-    // CommonJS
-    var d3Collection = require('d3-collection'),
-        d3Selection = require('d3-selection')
-    module.exports = factory(d3Collection, d3Selection)
-    /* eslint-enable global-require */
-  } else {
-    // Browser global.
-    var d3 = root.d3
-    // eslint-disable-next-line no-param-reassign
-    root.d3.tip = factory(d3, d3)
-  }
-}(this, function(d3Collection, d3Selection) {
-  // Public - contructs a new tooltip
-  //
-  // Returns a tip
-  return function() {
-    var direction   = d3TipDirection,
-        offset      = d3TipOffset,
-        html        = d3TipHTML,
-        rootElement = document.body,
-        node        = initNode(),
-        svg         = null,
-        point       = null,
-        target      = null
-
-    function tip(vis) {
-      svg = getSVGNode(vis)
-      if (!svg) return
-      point = svg.createSVGPoint()
-      rootElement.appendChild(node)
-    }
-
-    // Public - show the tooltip on the screen
-    //
-    // Returns a tip
-    tip.show = function() {
-      var args = Array.prototype.slice.call(arguments)
-      if (args[args.length - 1] instanceof SVGElement) target = args.pop()
-
-      var content = html.apply(this, args),
-          poffset = offset.apply(this, args),
-          dir     = direction.apply(this, args),
-          nodel   = getNodeEl(),
-          i       = directions.length,
-          coords,
-          scrollTop  = document.documentElement.scrollTop ||
-            rootElement.scrollTop,
-          scrollLeft = document.documentElement.scrollLeft ||
-            rootElement.scrollLeft
-
-      nodel.html(content)
-        .style('opacity', 1).style('pointer-events', 'all')
-
-      while (i--) nodel.classed(directions[i], false)
-      coords = directionCallbacks.get(dir).apply(this)
-      nodel.classed(dir, true)
-        .style('top', (coords.top + poffset[0]) + scrollTop + 'px')
-        .style('left', (coords.left + poffset[1]) + scrollLeft + 'px')
-
-      return tip
-    }
-
-    // Public - hide the tooltip
-    //
-    // Returns a tip
-    tip.hide = function() {
-      var nodel = getNodeEl()
-      nodel.style('opacity', 0).style('pointer-events', 'none')
-      return tip
-    }
-
-    // Public: Proxy attr calls to the d3 tip container.
-    // Sets or gets attribute value.
-    //
-    // n - name of the attribute
-    // v - value of the attribute
-    //
-    // Returns tip or attribute value
-    // eslint-disable-next-line no-unused-vars
-    tip.attr = function(n, v) {
-      if (arguments.length < 2 && typeof n === 'string') {
-        return getNodeEl().attr(n)
-      }
-
-      var args =  Array.prototype.slice.call(arguments)
-      d3Selection.selection.prototype.attr.apply(getNodeEl(), args)
-      return tip
-    }
-
-    // Public: Proxy style calls to the d3 tip container.
-    // Sets or gets a style value.
-    //
-    // n - name of the property
-    // v - value of the property
-    //
-    // Returns tip or style property value
-    // eslint-disable-next-line no-unused-vars
-    tip.style = function(n, v) {
-      if (arguments.length < 2 && typeof n === 'string') {
-        return getNodeEl().style(n)
-      }
-
-      var args = Array.prototype.slice.call(arguments)
-      d3Selection.selection.prototype.style.apply(getNodeEl(), args)
-      return tip
-    }
-
-    // Public: Set or get the direction of the tooltip
-    //
-    // v - One of n(north), s(south), e(east), or w(west), nw(northwest),
-    //     sw(southwest), ne(northeast) or se(southeast)
-    //
-    // Returns tip or direction
-    tip.direction = function(v) {
-      if (!arguments.length) return direction
-      direction = v == null ? v : functor(v)
-
-      return tip
-    }
-
-    // Public: Sets or gets the offset of the tip
-    //
-    // v - Array of [x, y] offset
-    //
-    // Returns offset or
-    tip.offset = function(v) {
-      if (!arguments.length) return offset
-      offset = v == null ? v : functor(v)
-
-      return tip
-    }
-
-    // Public: sets or gets the html value of the tooltip
-    //
-    // v - String value of the tip
-    //
-    // Returns html value or tip
-    tip.html = function(v) {
-      if (!arguments.length) return html
-      html = v == null ? v : functor(v)
-
-      return tip
-    }
-
-    // Public: sets or gets the root element anchor of the tooltip
-    //
-    // v - root element of the tooltip
-    //
-    // Returns root node of tip
-    tip.rootElement = function(v) {
-      if (!arguments.length) return rootElement
-      rootElement = v == null ? v : functor(v)
-
-      return tip
-    }
-
-    // Public: destroys the tooltip and removes it from the DOM
-    //
-    // Returns a tip
-    tip.destroy = function() {
-      if (node) {
-        getNodeEl().remove()
-        node = null
-      }
-      return tip
-    }
-
-    function d3TipDirection() { return 'n' }
-    function d3TipOffset() { return [0, 0] }
-    function d3TipHTML() { return ' ' }
-
-    var directionCallbacks = d3Collection.map({
-          n:  directionNorth,
-          s:  directionSouth,
-          e:  directionEast,
-          w:  directionWest,
-          nw: directionNorthWest,
-          ne: directionNorthEast,
-          sw: directionSouthWest,
-          se: directionSouthEast
-        }),
-        directions = directionCallbacks.keys()
-
-    function directionNorth() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.n.y - node.offsetHeight,
-        left: bbox.n.x - node.offsetWidth / 2
-      }
-    }
-
-    function directionSouth() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.s.y,
-        left: bbox.s.x - node.offsetWidth / 2
-      }
-    }
-
-    function directionEast() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.e.y - node.offsetHeight / 2,
-        left: bbox.e.x
-      }
-    }
-
-    function directionWest() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.w.y - node.offsetHeight / 2,
-        left: bbox.w.x - node.offsetWidth
-      }
-    }
-
-    function directionNorthWest() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.nw.y - node.offsetHeight,
-        left: bbox.nw.x - node.offsetWidth
-      }
-    }
-
-    function directionNorthEast() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.ne.y - node.offsetHeight,
-        left: bbox.ne.x
-      }
-    }
-
-    function directionSouthWest() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.sw.y,
-        left: bbox.sw.x - node.offsetWidth
-      }
-    }
-
-    function directionSouthEast() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.se.y,
-        left: bbox.se.x
-      }
-    }
-
-    function initNode() {
-      var div = d3Selection.select(document.createElement('div'))
-      div
-        .style('position', 'absolute')
-        .style('top', 0)
-        .style('opacity', 0)
-        .style('pointer-events', 'none')
-        .style('box-sizing', 'border-box')
-
-      return div.node()
-    }
-
-    function getSVGNode(element) {
-      var svgNode = element.node()
-      if (!svgNode) return null
-      if (svgNode.tagName.toLowerCase() === 'svg') return svgNode
-      return svgNode.ownerSVGElement
-    }
-
-    function getNodeEl() {
-      if (node == null) {
-        node = initNode()
-        // re-add node to DOM
-        rootElement.appendChild(node)
-      }
-      return d3Selection.select(node)
-    }
-
-    // Private - gets the screen coordinates of a shape
-    //
-    // Given a shape on the screen, will return an SVGPoint for the directions
-    // n(north), s(south), e(east), w(west), ne(northeast), se(southeast),
-    // nw(northwest), sw(southwest).
-    //
-    //    +-+-+
-    //    |   |
-    //    +   +
-    //    |   |
-    //    +-+-+
-    //
-    // Returns an Object {n, s, e, w, nw, sw, ne, se}
-    function getScreenBBox() {
-      var targetel   = target || d3Selection.event.target
-
-      while (targetel.getScreenCTM == null && targetel.parentNode == null) {
-        targetel = targetel.parentNode
-      }
-
-      var bbox       = {},
-          matrix     = targetel.getScreenCTM(),
-          tbbox      = targetel.getBBox(),
-          width      = tbbox.width,
-          height     = tbbox.height,
-          x          = tbbox.x,
-          y          = tbbox.y
-
-      point.x = x
-      point.y = y
-      bbox.nw = point.matrixTransform(matrix)
-      point.x += width
-      bbox.ne = point.matrixTransform(matrix)
-      point.y += height
-      bbox.se = point.matrixTransform(matrix)
-      point.x -= width
-      bbox.sw = point.matrixTransform(matrix)
-      point.y -= height / 2
-      bbox.w = point.matrixTransform(matrix)
-      point.x += width
-      bbox.e = point.matrixTransform(matrix)
-      point.x -= width / 2
-      point.y -= height / 2
-      bbox.n = point.matrixTransform(matrix)
-      point.y += height
-      bbox.s = point.matrixTransform(matrix)
-
-      return bbox
-    }
-
-    // Private - replace D3JS 3.X d3.functor() function
-    function functor(v) {
-      return typeof v === 'function' ? v : function() {
-        return v
-      }
-    }
-
-    return tip
-  }
-// eslint-disable-next-line semi
-}));
+/** 
+ * d3.tip 
+ * Copyright (c) 2013 Justin Palmer 
+ * 
+ * Tooltips for d3.js SVG visualizations 
+ */ 
+// eslint-disable-next-line no-extra-semi 
+;(function(root, factory) { 
+  if (typeof define === 'function' && define.amd) { 
+    // AMD. Register as an anonymous module with d3 as a dependency. 
+    define([ 
+      'd3-collection', 
+      'd3-selection' 
+    ], factory) 
+  } else if (typeof module === 'object' && module.exports) { 
+    /* eslint-disable global-require */ 
+    // CommonJS 
+    var d3Collection = require('d3-collection'), 
+        d3Selection = require('d3-selection') 
+    module.exports = factory(d3Collection, d3Selection) 
+    /* eslint-enable global-require */ 
+  } else { 
+    // Browser global. 
+    var d3 = root.d3 
+    // eslint-disable-next-line no-param-reassign 
+    root.d3.tip = factory(d3, d3) 
+  } 
+}(this, function(d3Collection, d3Selection) { 
+  // Public - contructs a new tooltip 
+  // 
+  // Returns a tip 
+  return function() { 
+    var direction   = d3TipDirection, 
+        offset      = d3TipOffset, 
+        html        = d3TipHTML, 
+        rootElement = document.body, 
+        node        = initNode(), 
+        svg         = null, 
+        point       = null, 
+        target      = null 
+ 
+    function tip(vis) { 
+      svg = getSVGNode(vis) 
+      if (!svg) return 
+      point = svg.createSVGPoint() 
+      rootElement.appendChild(node) 
+    } 
+ 
+    // Public - show the tooltip on the screen 
+    // 
+    // Returns a tip 
+    tip.show = function() { 
+      var args = Array.prototype.slice.call(arguments) 
+      if (args[args.length - 1] instanceof SVGElement) target = args.pop() 
+ 
+      var content = html.apply(this, args), 
+          poffset = offset.apply(this, args), 
+          dir     = direction.apply(this, args), 
+          nodel   = getNodeEl(), 
+          i       = directions.length, 
+          coords, 
+          scrollTop  = document.documentElement.scrollTop || 
+            rootElement.scrollTop, 
+          scrollLeft = document.documentElement.scrollLeft || 
+            rootElement.scrollLeft 
+ 
+      nodel.html(content) 
+        .style('opacity', 1).style('pointer-events', 'all') 
+ 
+      while (i--) nodel.classed(directions[i], false) 
+      coords = directionCallbacks.get(dir).apply(this) 
+      nodel.classed(dir, true) 
+        .style('top', (coords.top + poffset[0]) + scrollTop + 'px') 
+        .style('left', (coords.left + poffset[1]) + scrollLeft + 'px') 
+ 
+      return tip 
+    } 
+ 
+    // Public - hide the tooltip 
+    // 
+    // Returns a tip 
+    tip.hide = function() { 
+      var nodel = getNodeEl() 
+      nodel.style('opacity', 0).style('pointer-events', 'none') 
+      return tip 
+    } 
+ 
+    // Public: Proxy attr calls to the d3 tip container. 
+    // Sets or gets attribute value. 
+    // 
+    // n - name of the attribute 
+    // v - value of the attribute 
+    // 
+    // Returns tip or attribute value 
+    // eslint-disable-next-line no-unused-vars 
+    tip.attr = function(n, v) { 
+      if (arguments.length < 2 && typeof n === 'string') { 
+        return getNodeEl().attr(n) 
+      } 
+ 
+      var args =  Array.prototype.slice.call(arguments) 
+      d3Selection.selection.prototype.attr.apply(getNodeEl(), args) 
+      return tip 
+    } 
+ 
+    // Public: Proxy style calls to the d3 tip container. 
+    // Sets or gets a style value. 
+    // 
+    // n - name of the property 
+    // v - value of the property 
+    // 
+    // Returns tip or style property value 
+    // eslint-disable-next-line no-unused-vars 
+    tip.style = function(n, v) { 
+      if (arguments.length < 2 && typeof n === 'string') { 
+        return getNodeEl().style(n) 
+      } 
+ 
+      var args = Array.prototype.slice.call(arguments) 
+      d3Selection.selection.prototype.style.apply(getNodeEl(), args) 
+      return tip 
+    } 
+ 
+    // Public: Set or get the direction of the tooltip 
+    // 
+    // v - One of n(north), s(south), e(east), or w(west), nw(northwest), 
+    //     sw(southwest), ne(northeast) or se(southeast) 
+    // 
+    // Returns tip or direction 
+    tip.direction = function(v) { 
+      if (!arguments.length) return direction 
+      direction = v == null ? v : functor(v) 
+ 
+      return tip 
+    } 
+ 
+    // Public: Sets or gets the offset of the tip 
+    // 
+    // v - Array of [x, y] offset 
+    // 
+    // Returns offset or 
+    tip.offset = function(v) { 
+      if (!arguments.length) return offset 
+      offset = v == null ? v : functor(v) 
+ 
+      return tip 
+    } 
+ 
+    // Public: sets or gets the html value of the tooltip 
+    // 
+    // v - String value of the tip 
+    // 
+    // Returns html value or tip 
+    tip.html = function(v) { 
+      if (!arguments.length) return html 
+      html = v == null ? v : functor(v) 
+ 
+      return tip 
+    } 
+ 
+    // Public: sets or gets the root element anchor of the tooltip 
+    // 
+    // v - root element of the tooltip 
+    // 
+    // Returns root node of tip 
+    tip.rootElement = function(v) { 
+      if (!arguments.length) return rootElement 
+      rootElement = v == null ? v : functor(v) 
+ 
+      return tip 
+    } 
+ 
+    // Public: destroys the tooltip and removes it from the DOM 
+    // 
+    // Returns a tip 
+    tip.destroy = function() { 
+      if (node) { 
+        getNodeEl().remove() 
+        node = null 
+      } 
+      return tip 
+    } 
+ 
+    function d3TipDirection() { return 'n' } 
+    function d3TipOffset() { return [0, 0] } 
+    function d3TipHTML() { return ' ' } 
+ 
+    var directionCallbacks = d3Collection.map({ 
+          n:  directionNorth, 
+          s:  directionSouth, 
+          e:  directionEast, 
+          w:  directionWest, 
+          nw: directionNorthWest, 
+          ne: directionNorthEast, 
+          sw: directionSouthWest, 
+          se: directionSouthEast 
+        }), 
+        directions = directionCallbacks.keys() 
+ 
+    function directionNorth() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.n.y - node.offsetHeight, 
+        left: bbox.n.x - node.offsetWidth / 2 
+      } 
+    } 
+ 
+    function directionSouth() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.s.y, 
+        left: bbox.s.x - node.offsetWidth / 2 
+      } 
+    } 
+ 
+    function directionEast() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.e.y - node.offsetHeight / 2, 
+        left: bbox.e.x 
+      } 
+    } 
+ 
+    function directionWest() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.w.y - node.offsetHeight / 2, 
+        left: bbox.w.x - node.offsetWidth 
+      } 
+    } 
+ 
+    function directionNorthWest() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.nw.y - node.offsetHeight, 
+        left: bbox.nw.x - node.offsetWidth 
+      } 
+    } 
+ 
+    function directionNorthEast() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.ne.y - node.offsetHeight, 
+        left: bbox.ne.x 
+      } 
+    } 
+ 
+    function directionSouthWest() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.sw.y, 
+        left: bbox.sw.x - node.offsetWidth 
+      } 
+    } 
+ 
+    function directionSouthEast() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.se.y, 
+        left: bbox.se.x 
+      } 
+    } 
+ 
+    function initNode() { 
+      var div = d3Selection.select(document.createElement('div')) 
+      div 
+        .style('position', 'absolute') 
+        .style('top', 0) 
+        .style('opacity', 0) 
+        .style('pointer-events', 'none') 
+        .style('box-sizing', 'border-box') 
+ 
+      return div.node() 
+    } 
+ 
+    function getSVGNode(element) { 
+      var svgNode = element.node() 
+      if (!svgNode) return null 
+      if (svgNode.tagName.toLowerCase() === 'svg') return svgNode 
+      return svgNode.ownerSVGElement 
+    } 
+ 
+    function getNodeEl() { 
+      if (node == null) { 
+        node = initNode() 
+        // re-add node to DOM 
+        rootElement.appendChild(node) 
+      } 
+      return d3Selection.select(node) 
+    } 
+ 
+    // Private - gets the screen coordinates of a shape 
+    // 
+    // Given a shape on the screen, will return an SVGPoint for the directions 
+    // n(north), s(south), e(east), w(west), ne(northeast), se(southeast), 
+    // nw(northwest), sw(southwest). 
+    // 
+    //    +-+-+ 
+    //    |   | 
+    //    +   + 
+    //    |   | 
+    //    +-+-+ 
+    // 
+    // Returns an Object {n, s, e, w, nw, sw, ne, se} 
+    function getScreenBBox() { 
+      var targetel   = target || d3Selection.event.target 
+ 
+      while (targetel.getScreenCTM == null && targetel.parentNode == null) { 
+        targetel = targetel.parentNode 
+      } 
+ 
+      var bbox       = {}, 
+          matrix     = targetel.getScreenCTM(), 
+          tbbox      = targetel.getBBox(), 
+          width      = tbbox.width, 
+          height     = tbbox.height, 
+          x          = tbbox.x, 
+          y          = tbbox.y 
+ 
+      point.x = x 
+      point.y = y 
+      bbox.nw = point.matrixTransform(matrix) 
+      point.x += width 
+      bbox.ne = point.matrixTransform(matrix) 
+      point.y += height 
+      bbox.se = point.matrixTransform(matrix) 
+      point.x -= width 
+      bbox.sw = point.matrixTransform(matrix) 
+      point.y -= height / 2 
+      bbox.w = point.matrixTransform(matrix) 
+      point.x += width 
+      bbox.e = point.matrixTransform(matrix) 
+      point.x -= width / 2 
+      point.y -= height / 2 
+      bbox.n = point.matrixTransform(matrix) 
+      point.y += height 
+      bbox.s = point.matrixTransform(matrix) 
+ 
+      return bbox 
+    } 
+ 
+    // Private - replace D3JS 3.X d3.functor() function 
+    function functor(v) { 
+      return typeof v === 'function' ? v : function() { 
+        return v 
+      } 
+    } 
+ 
+    return tip 
+  } 
+// eslint-disable-next-line semi 
+})); 
diff --git a/library/cpp/lwtrace/mon/static/js/d3.v4.min.js b/library/cpp/lwtrace/mon/static/js/d3.v4.min.js
index 6a2705865c..544c4eb8cd 100644
--- a/library/cpp/lwtrace/mon/static/js/d3.v4.min.js
+++ b/library/cpp/lwtrace/mon/static/js/d3.v4.min.js
@@ -1,2 +1,2 @@
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3:this._point=4;default:Ga(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}};tc.prototype={lineStart:function(){this._x=[],this._y=[],this._basis.lineStart()},lineEnd:function(){var t=this._x,n=this._y,e=t.length-1;if(e>0)for(var r,i=t[0],o=n[0],u=t[e]-i,a=n[e]-o,c=-1;++c<=e;)r=c/e,this._basis.point(this._beta*t[c]+(1-this._beta)*(i+r*u),this._beta*n[c]+(1-this._beta)*(o+r*a));this._x=this._y=null,this._basis.lineEnd()},point:function(t,n){this._x.push(+t),this._y.push(+n)}};var Xg=function t(n){function e(t){return 1===n?new Ja(t):new tc(t,n)}return e.beta=function(n){return t(+n)},e}(.85);ec.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x2,this._y2);break;case 3:nc(this,this._x1,this._y1)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2,this._x1=t,this._y1=n;break;case 2:this._point=3;default:nc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var $g=function t(n){function e(t){return new ec(t,n)}return e.tension=function(n){return t(+n)},e}(0);rc.prototype={areaStart:Hg,areaEnd:Hg,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._x5=this._y0=this._y1=this._y2=this._y3=this._y4=this._y5=NaN,this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x3,this._y3),this._context.closePath();break;case 2:this._context.lineTo(this._x3,this._y3),this._context.closePath();break;case 3:this.point(this._x3,this._y3),this.point(this._x4,this._y4),this.point(this._x5,this._y5)}},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._x3=t,this._y3=n;break;case 1:this._point=2,this._context.moveTo(this._x4=t,this._y4=n);break;case 2:this._point=3,this._x5=t,this._y5=n;break;default:nc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Vg=function t(n){function e(t){return new rc(t,n)}return e.tension=function(n){return t(+n)},e}(0);ic.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3,this._line?this._context.lineTo(this._x2,this._y2):this._context.moveTo(this._x2,this._y2);break;case 3:this._point=4;default:nc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Wg=function t(n){function e(t){return new ic(t,n)}return e.tension=function(n){return t(+n)},e}(0);uc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x2,this._y2);break;case 3:this.point(this._x2,this._y2)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){if(t=+t,n=+n,this._point){var e=this._x2-t,r=this._y2-n;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(e*e+r*r,this._alpha))}switch(this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3;default:oc(this,t,n)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Zg=function t(n){function e(t){return n?new uc(t,n):new ec(t,0)}return e.alpha=function(n){return t(+n)},e}(.5);ac.prototype={areaStart:Hg,areaEnd:Hg,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._x5=this._y0=this._y1=this._y2=this._y3=this._y4=this._y5=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x3,this._y3),this._context.closePath();break;case 2:this._context.lineTo(this._x3,this._y3),this._context.closePath();break;case 3:this.point(this._x3,this._y3),this.point(this._x4,this._y4),this.point(this._x5,this._y5)}},point:function(t,n){if(t=+t,n=+n,this._point){var e=this._x2-t,r=this._y2-n;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(e*e+r*r,this._alpha))}switch(this._point){case 0:this._point=1,this._x3=t,this._y3=n;break;case 1:this._point=2,this._context.moveTo(this._x4=t,this._y4=n);break;case 2:this._point=3,this._x5=t,this._y5=n;break;default:oc(this,t,n)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Gg=function t(n){function e(t){return n?new ac(t,n):new rc(t,0)}return e.alpha=function(n){return 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n?new cc(t,n):new ic(t,0)}return e.alpha=function(n){return t(+n)},e}(.5);sc.prototype={areaStart:Hg,areaEnd:Hg,lineStart:function(){this._point=0},lineEnd:function(){this._point&&this._context.closePath()},point:function(t,n){t=+t,n=+n,this._point?this._context.lineTo(t,n):(this._point=1,this._context.moveTo(t,n))}};dc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=this._t0=NaN,this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x1,this._y1);break;case 3:pc(this,this._t0,hc(this,this._t0))}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){var e=NaN;if(t=+t,n=+n,t!==this._x1||n!==this._y1){switch(this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3,pc(this,hc(this,e=lc(this,t,n)),e);break;default:pc(this,this._t0,e=lc(this,t,n))}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n,this._t0=e}}},(vc.prototype=Object.create(dc.prototype)).point=function(t,n){dc.prototype.point.call(this,n,t)},_c.prototype={moveTo:function(t,n){this._context.moveTo(n,t)},closePath:function(){this._context.closePath()},lineTo:function(t,n){this._context.lineTo(n,t)},bezierCurveTo:function(t,n,e,r,i,o){this._context.bezierCurveTo(n,t,r,e,o,i)}},yc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x=[],this._y=[]},lineEnd:function(){var t=this._x,n=this._y,e=t.length;if(e)if(this._line?this._context.lineTo(t[0],n[0]):this._context.moveTo(t[0],n[0]),2===e)this._context.lineTo(t[1],n[1]);else for(var r=gc(t),i=gc(n),o=0,u=1;u<e;++o,++u)this._context.bezierCurveTo(r[0][o],i[0][o],r[1][o],i[1][o],t[u],n[u]);(this._line||0!==this._line&&1===e)&&this._context.closePath(),this._line=1-this._line,this._x=this._y=null},point:function(t,n){this._x.push(+t),this._y.push(+n)}};mc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x=this._y=NaN,this._point=0},lineEnd:function(){0<this._t&&this._t<1&&2===this._point&&this._context.lineTo(this._x,this._y),(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line>=0&&(this._t=1-this._t,this._line=1-this._line)},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;default:if(this._t<=0)this._context.lineTo(this._x,n),this._context.lineTo(t,n);else{var e=this._x*(1-this._t)+t*this._t;this._context.lineTo(e,this._y),this._context.lineTo(e,n)}}this._x=t,this._y=n}};var Qg=function(t,n){if((i=t.length)>1)for(var e,r,i,o=1,u=t[n[0]],a=u.length;o<i;++o)for(r=u,u=t[n[o]],e=0;e<a;++e)u[e][1]+=u[e][0]=isNaN(r[e][1])?r[e][0]:r[e][1]},Kg=function(t){for(var n=t.length,e=new Array(n);--n>=0;)e[n]=n;return e},tm=function(t){var n=t.map(bc);return Kg(t).sort(function(t,e){return n[t]-n[e]})},nm=function(t){return function(){return t}};Tc.prototype={constructor:Tc,insert:function(t,n){var e,r,i;if(t){if(n.P=t,n.N=t.N,t.N&&(t.N.P=n),t.N=n,t.R){for(t=t.R;t.L;)t=t.L;t.L=n}else t.R=n;e=t}else this._?(t=Ec(this._),n.P=null,n.N=t,t.P=t.L=n,e=t):(n.P=n.N=null,this._=n,e=null);for(n.L=n.R=null,n.U=e,n.C=!0,t=n;e&&e.C;)e===(r=e.U).L?(i=r.R)&&i.C?(e.C=i.C=!1,r.C=!0,t=r):(t===e.R&&(Nc(this,e),e=(t=e).U),e.C=!1,r.C=!0,Sc(this,r)):(i=r.L)&&i.C?(e.C=i.C=!1,r.C=!0,t=r):(t===e.L&&(Sc(this,e),e=(t=e).U),e.C=!1,r.C=!0,Nc(this,r)),e=t.U;this._.C=!1},remove:function(t){t.N&&(t.N.P=t.P),t.P&&(t.P.N=t.N),t.N=t.P=null;var n,e,r,i=t.U,o=t.L,u=t.R;if(e=o?u?Ec(u):o:u,i?i.L===t?i.L=e:i.R=e:this._=e,o&&u?(r=e.C,e.C=t.C,e.L=o,o.U=e,e!==u?(i=e.U,e.U=t.U,t=e.R,i.L=t,e.R=u,u.U=e):(e.U=i,i=e,t=e.R)):(r=t.C,t=e),t&&(t.U=i),!r)if(t&&t.C)t.C=!1;else{do{if(t===this._)break;if(t===i.L){if((n=i.R).C&&(n.C=!1,i.C=!0,Nc(this,i),n=i.R),n.L&&n.L.C||n.R&&n.R.C){n.R&&n.R.C||(n.L.C=!1,n.C=!0,Sc(this,n),n=i.R),n.C=i.C,i.C=n.R.C=!1,Nc(this,i),t=this._;break}}else if((n=i.L).C&&(n.C=!1,i.C=!0,Sc(this,i),n=i.L),n.L&&n.L.C||n.R&&n.R.C){n.L&&n.L.C||(n.R.C=!1,n.C=!0,Nc(this,n),n=i.L),n.C=i.C,i.C=n.L.C=!1,Sc(this,i),t=this._;break}n.C=!0,t=i,i=i.U}while(!t.C);t&&(t.C=!1)}}};var em,rm,im,om,um,am=[],cm=[],sm=1e-6,fm=1e-12;Kc.prototype={constructor:Kc,polygons:function(){var t=this.edges;return this.cells.map(function(n){var e=n.halfedges.map(function(e){return Dc(n,t[e])});return e.data=n.site.data,e})},triangles:function(){var t=[],n=this.edges;return this.cells.forEach(function(e,r){if(o=(i=e.halfedges).length)for(var i,o,u,a=e.site,c=-1,s=n[i[o-1]],f=s.left===a?s.right:s.left;++c<o;)u=f,f=(s=n[i[c]]).left===a?s.right:s.left,u&&f&&r<u.index&&r<f.index&&Jc(a,u,f)<0&&t.push([a.data,u.data,f.data])}),t},links:function(){return this.edges.filter(function(t){return t.right}).map(function(t){return{source:t.left.data,target:t.right.data}})},find:function(t,n,e){for(var r,i,o=this,u=o._found||0,a=o.cells.length;!(i=o.cells[u]);)if(++u>=a)return null;var c=t-i.site[0],s=n-i.site[1],f=c*c+s*s;do{i=o.cells[r=u],u=null,i.halfedges.forEach(function(e){var r=o.edges[e],a=r.left;if(a!==i.site&&a||(a=r.right)){var c=t-a[0],s=n-a[1],l=c*c+s*s;l<f&&(f=l,u=a.index)}})}while(null!==u);return o._found=r,null==e||f<=e*e?i.site:null}};var lm=function(t){return function(){return t}};ns.prototype={constructor:ns,scale:function(t){return 1===t?this:new ns(this.k*t,this.x,this.y)},translate:function(t,n){return 0===t&0===n?this:new ns(this.k,this.x+this.k*t,this.y+this.k*n)},apply:function(t){return[t[0]*this.k+this.x,t[1]*this.k+this.y]},applyX:function(t){return t*this.k+this.x},applyY:function(t){return t*this.k+this.y},invert:function(t){return[(t[0]-this.x)/this.k,(t[1]-this.y)/this.k]},invertX:function(t){return(t-this.x)/this.k},invertY:function(t){return(t-this.y)/this.k},rescaleX:function(t){return t.copy().domain(t.range().map(this.invertX,this).map(t.invert,t))},rescaleY:function(t){return 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3:this._point=4;default:Ga(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}};tc.prototype={lineStart:function(){this._x=[],this._y=[],this._basis.lineStart()},lineEnd:function(){var t=this._x,n=this._y,e=t.length-1;if(e>0)for(var r,i=t[0],o=n[0],u=t[e]-i,a=n[e]-o,c=-1;++c<=e;)r=c/e,this._basis.point(this._beta*t[c]+(1-this._beta)*(i+r*u),this._beta*n[c]+(1-this._beta)*(o+r*a));this._x=this._y=null,this._basis.lineEnd()},point:function(t,n){this._x.push(+t),this._y.push(+n)}};var Xg=function t(n){function e(t){return 1===n?new Ja(t):new tc(t,n)}return e.beta=function(n){return t(+n)},e}(.85);ec.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x2,this._y2);break;case 3:nc(this,this._x1,this._y1)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2,this._x1=t,this._y1=n;break;case 2:this._point=3;default:nc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var $g=function t(n){function e(t){return new ec(t,n)}return e.tension=function(n){return t(+n)},e}(0);rc.prototype={areaStart:Hg,areaEnd:Hg,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._x5=this._y0=this._y1=this._y2=this._y3=this._y4=this._y5=NaN,this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x3,this._y3),this._context.closePath();break;case 2:this._context.lineTo(this._x3,this._y3),this._context.closePath();break;case 3:this.point(this._x3,this._y3),this.point(this._x4,this._y4),this.point(this._x5,this._y5)}},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._x3=t,this._y3=n;break;case 1:this._point=2,this._context.moveTo(this._x4=t,this._y4=n);break;case 2:this._point=3,this._x5=t,this._y5=n;break;default:nc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Vg=function t(n){function e(t){return new rc(t,n)}return e.tension=function(n){return t(+n)},e}(0);ic.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3,this._line?this._context.lineTo(this._x2,this._y2):this._context.moveTo(this._x2,this._y2);break;case 3:this._point=4;default:nc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Wg=function t(n){function e(t){return new ic(t,n)}return e.tension=function(n){return t(+n)},e}(0);uc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x2,this._y2);break;case 3:this.point(this._x2,this._y2)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){if(t=+t,n=+n,this._point){var e=this._x2-t,r=this._y2-n;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(e*e+r*r,this._alpha))}switch(this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3;default:oc(this,t,n)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Zg=function t(n){function e(t){return n?new uc(t,n):new ec(t,0)}return e.alpha=function(n){return t(+n)},e}(.5);ac.prototype={areaStart:Hg,areaEnd:Hg,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._x5=this._y0=this._y1=this._y2=this._y3=this._y4=this._y5=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x3,this._y3),this._context.closePath();break;case 2:this._context.lineTo(this._x3,this._y3),this._context.closePath();break;case 3:this.point(this._x3,this._y3),this.point(this._x4,this._y4),this.point(this._x5,this._y5)}},point:function(t,n){if(t=+t,n=+n,this._point){var e=this._x2-t,r=this._y2-n;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(e*e+r*r,this._alpha))}switch(this._point){case 0:this._point=1,this._x3=t,this._y3=n;break;case 1:this._point=2,this._context.moveTo(this._x4=t,this._y4=n);break;case 2:this._point=3,this._x5=t,this._y5=n;break;default:oc(this,t,n)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Gg=function t(n){function e(t){return n?new ac(t,n):new rc(t,0)}return e.alpha=function(n){return 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n?new cc(t,n):new ic(t,0)}return e.alpha=function(n){return t(+n)},e}(.5);sc.prototype={areaStart:Hg,areaEnd:Hg,lineStart:function(){this._point=0},lineEnd:function(){this._point&&this._context.closePath()},point:function(t,n){t=+t,n=+n,this._point?this._context.lineTo(t,n):(this._point=1,this._context.moveTo(t,n))}};dc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=this._t0=NaN,this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x1,this._y1);break;case 3:pc(this,this._t0,hc(this,this._t0))}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){var e=NaN;if(t=+t,n=+n,t!==this._x1||n!==this._y1){switch(this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3,pc(this,hc(this,e=lc(this,t,n)),e);break;default:pc(this,this._t0,e=lc(this,t,n))}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n,this._t0=e}}},(vc.prototype=Object.create(dc.prototype)).point=function(t,n){dc.prototype.point.call(this,n,t)},_c.prototype={moveTo:function(t,n){this._context.moveTo(n,t)},closePath:function(){this._context.closePath()},lineTo:function(t,n){this._context.lineTo(n,t)},bezierCurveTo:function(t,n,e,r,i,o){this._context.bezierCurveTo(n,t,r,e,o,i)}},yc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x=[],this._y=[]},lineEnd:function(){var t=this._x,n=this._y,e=t.length;if(e)if(this._line?this._context.lineTo(t[0],n[0]):this._context.moveTo(t[0],n[0]),2===e)this._context.lineTo(t[1],n[1]);else for(var r=gc(t),i=gc(n),o=0,u=1;u<e;++o,++u)this._context.bezierCurveTo(r[0][o],i[0][o],r[1][o],i[1][o],t[u],n[u]);(this._line||0!==this._line&&1===e)&&this._context.closePath(),this._line=1-this._line,this._x=this._y=null},point:function(t,n){this._x.push(+t),this._y.push(+n)}};mc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x=this._y=NaN,this._point=0},lineEnd:function(){0<this._t&&this._t<1&&2===this._point&&this._context.lineTo(this._x,this._y),(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line>=0&&(this._t=1-this._t,this._line=1-this._line)},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;default:if(this._t<=0)this._context.lineTo(this._x,n),this._context.lineTo(t,n);else{var e=this._x*(1-this._t)+t*this._t;this._context.lineTo(e,this._y),this._context.lineTo(e,n)}}this._x=t,this._y=n}};var Qg=function(t,n){if((i=t.length)>1)for(var e,r,i,o=1,u=t[n[0]],a=u.length;o<i;++o)for(r=u,u=t[n[o]],e=0;e<a;++e)u[e][1]+=u[e][0]=isNaN(r[e][1])?r[e][0]:r[e][1]},Kg=function(t){for(var n=t.length,e=new Array(n);--n>=0;)e[n]=n;return e},tm=function(t){var n=t.map(bc);return Kg(t).sort(function(t,e){return n[t]-n[e]})},nm=function(t){return function(){return t}};Tc.prototype={constructor:Tc,insert:function(t,n){var e,r,i;if(t){if(n.P=t,n.N=t.N,t.N&&(t.N.P=n),t.N=n,t.R){for(t=t.R;t.L;)t=t.L;t.L=n}else t.R=n;e=t}else this._?(t=Ec(this._),n.P=null,n.N=t,t.P=t.L=n,e=t):(n.P=n.N=null,this._=n,e=null);for(n.L=n.R=null,n.U=e,n.C=!0,t=n;e&&e.C;)e===(r=e.U).L?(i=r.R)&&i.C?(e.C=i.C=!1,r.C=!0,t=r):(t===e.R&&(Nc(this,e),e=(t=e).U),e.C=!1,r.C=!0,Sc(this,r)):(i=r.L)&&i.C?(e.C=i.C=!1,r.C=!0,t=r):(t===e.L&&(Sc(this,e),e=(t=e).U),e.C=!1,r.C=!0,Nc(this,r)),e=t.U;this._.C=!1},remove:function(t){t.N&&(t.N.P=t.P),t.P&&(t.P.N=t.N),t.N=t.P=null;var n,e,r,i=t.U,o=t.L,u=t.R;if(e=o?u?Ec(u):o:u,i?i.L===t?i.L=e:i.R=e:this._=e,o&&u?(r=e.C,e.C=t.C,e.L=o,o.U=e,e!==u?(i=e.U,e.U=t.U,t=e.R,i.L=t,e.R=u,u.U=e):(e.U=i,i=e,t=e.R)):(r=t.C,t=e),t&&(t.U=i),!r)if(t&&t.C)t.C=!1;else{do{if(t===this._)break;if(t===i.L){if((n=i.R).C&&(n.C=!1,i.C=!0,Nc(this,i),n=i.R),n.L&&n.L.C||n.R&&n.R.C){n.R&&n.R.C||(n.L.C=!1,n.C=!0,Sc(this,n),n=i.R),n.C=i.C,i.C=n.R.C=!1,Nc(this,i),t=this._;break}}else if((n=i.L).C&&(n.C=!1,i.C=!0,Sc(this,i),n=i.L),n.L&&n.L.C||n.R&&n.R.C){n.L&&n.L.C||(n.R.C=!1,n.C=!0,Nc(this,n),n=i.L),n.C=i.C,i.C=n.L.C=!1,Sc(this,i),t=this._;break}n.C=!0,t=i,i=i.U}while(!t.C);t&&(t.C=!1)}}};var em,rm,im,om,um,am=[],cm=[],sm=1e-6,fm=1e-12;Kc.prototype={constructor:Kc,polygons:function(){var t=this.edges;return this.cells.map(function(n){var e=n.halfedges.map(function(e){return Dc(n,t[e])});return e.data=n.site.data,e})},triangles:function(){var t=[],n=this.edges;return this.cells.forEach(function(e,r){if(o=(i=e.halfedges).length)for(var i,o,u,a=e.site,c=-1,s=n[i[o-1]],f=s.left===a?s.right:s.left;++c<o;)u=f,f=(s=n[i[c]]).left===a?s.right:s.left,u&&f&&r<u.index&&r<f.index&&Jc(a,u,f)<0&&t.push([a.data,u.data,f.data])}),t},links:function(){return this.edges.filter(function(t){return t.right}).map(function(t){return{source:t.left.data,target:t.right.data}})},find:function(t,n,e){for(var r,i,o=this,u=o._found||0,a=o.cells.length;!(i=o.cells[u]);)if(++u>=a)return null;var c=t-i.site[0],s=n-i.site[1],f=c*c+s*s;do{i=o.cells[r=u],u=null,i.halfedges.forEach(function(e){var r=o.edges[e],a=r.left;if(a!==i.site&&a||(a=r.right)){var c=t-a[0],s=n-a[1],l=c*c+s*s;l<f&&(f=l,u=a.index)}})}while(null!==u);return o._found=r,null==e||f<=e*e?i.site:null}};var lm=function(t){return function(){return t}};ns.prototype={constructor:ns,scale:function(t){return 1===t?this:new ns(this.k*t,this.x,this.y)},translate:function(t,n){return 0===t&0===n?this:new ns(this.k,this.x+this.k*t,this.y+this.k*n)},apply:function(t){return[t[0]*this.k+this.x,t[1]*this.k+this.y]},applyX:function(t){return t*this.k+this.x},applyY:function(t){return t*this.k+this.y},invert:function(t){return[(t[0]-this.x)/this.k,(t[1]-this.y)/this.k]},invertX:function(t){return(t-this.x)/this.k},invertY:function(t){return(t-this.y)/this.k},rescaleX:function(t){return t.copy().domain(t.range().map(this.invertX,this).map(t.invert,t))},rescaleY:function(t){return 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diff --git a/library/cpp/lwtrace/mon/static/js/filesaver.min.js b/library/cpp/lwtrace/mon/static/js/filesaver.min.js
index b431d9bc5b..eaebca442a 100644
--- a/library/cpp/lwtrace/mon/static/js/filesaver.min.js
+++ b/library/cpp/lwtrace/mon/static/js/filesaver.min.js
@@ -1 +1 @@
-(function(a,b){if("function"==typeof define&&define.amd)define([],b);else if("undefined"!=typeof exports)b();else{b(),a.FileSaver={exports:{}}.exports}})(this,function(){"use strict";function b(a,b){return"undefined"==typeof b?b={autoBom:!1}:"object"!=typeof b&&(console.warn("Deprecated: Expected third argument to be a object"),b={autoBom:!b}),b.autoBom&&/^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(a.type)?new Blob(["\uFEFF",a],{type:a.type}):a}function c(b,c,d){var e=new XMLHttpRequest;e.open("GET",b),e.responseType="blob",e.onload=function(){a(e.response,c,d)},e.onerror=function(){console.error("could not download file")},e.send()}function d(a){var b=new XMLHttpRequest;b.open("HEAD",a,!1);try{b.send()}catch(a){}return 200<=b.status&&299>=b.status}function e(a){try{a.dispatchEvent(new MouseEvent("click"))}catch(c){var b=document.createEvent("MouseEvents");b.initMouseEvent("click",!0,!0,window,0,0,0,80,20,!1,!1,!1,!1,0,null),a.dispatchEvent(b)}}var f="object"==typeof window&&window.window===window?window:"object"==typeof self&&self.self===self?self:"object"==typeof global&&global.global===global?global:void 0,a=f.saveAs||("object"!=typeof window||window!==f?function(){}:"download"in HTMLAnchorElement.prototype?function(b,g,h){var i=f.URL||f.webkitURL,j=document.createElement("a");g=g||b.name||"download",j.download=g,j.rel="noopener","string"==typeof b?(j.href=b,j.origin===location.origin?e(j):d(j.href)?c(b,g,h):e(j,j.target="_blank")):(j.href=i.createObjectURL(b),setTimeout(function(){i.revokeObjectURL(j.href)},4E4),setTimeout(function(){e(j)},0))}:"msSaveOrOpenBlob"in navigator?function(f,g,h){if(g=g||f.name||"download","string"!=typeof f)navigator.msSaveOrOpenBlob(b(f,h),g);else if(d(f))c(f,g,h);else{var i=document.createElement("a");i.href=f,i.target="_blank",setTimeout(function(){e(i)})}}:function(a,b,d,e){if(e=e||open("","_blank"),e&&(e.document.title=e.document.body.innerText="downloading..."),"string"==typeof a)return c(a,b,d);var g="application/octet-stream"===a.type,h=/constructor/i.test(f.HTMLElement)||f.safari,i=/CriOS\/[\d]+/.test(navigator.userAgent);if((i||g&&h)&&"undefined"!=typeof FileReader){var j=new FileReader;j.onloadend=function(){var a=j.result;a=i?a:a.replace(/^data:[^;]*;/,"data:attachment/file;"),e?e.location.href=a:location=a,e=null},j.readAsDataURL(a)}else{var k=f.URL||f.webkitURL,l=k.createObjectURL(a);e?e.location=l:location.href=l,e=null,setTimeout(function(){k.revokeObjectURL(l)},4E4)}});f.saveAs=a.saveAs=a,"undefined"!=typeof module&&(module.exports=a)});
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diff --git a/library/cpp/lwtrace/mon/static/js/jquery.flot.extents.js b/library/cpp/lwtrace/mon/static/js/jquery.flot.extents.js
index c17018b4f6..c8012fde62 100644
--- a/library/cpp/lwtrace/mon/static/js/jquery.flot.extents.js
+++ b/library/cpp/lwtrace/mon/static/js/jquery.flot.extents.js
@@ -1,196 +1,196 @@
-/*
- * Copyright 2012, Serge V. Izmaylov
- * Released under GPL Version 2 license.
- */
-
-(function ($) {
-    var options = {
-        series: {
-            extents: {
-                show: false,
-                lineWidth: 1,
-                barHeight: 17,
-                color: "rgba(192, 192, 192, 1.0)",
-                showConnections: true,
-                connectionColor: "rgba(0, 192, 128, 0.8)",
-                fill: true,
-                fillColor: "rgba(64, 192, 255, 0.5)",
-                showLabels: true,
-                rowHeight: 20,
-                rows: 7,
-                barVAlign: "top",
-                labelHAlign: "left"
-            }
-        }
-    };
-
-    function processRawData(plot, series, data, datapoints) {
-        if (!series.extents || !series.extents.show)
-            return;
-
-        // Fool Flot with fake datapoints
-        datapoints.format = [ // Fake format
-            { x: true, number: true, required: true },
-            { y: true, number: true, required: true },
-        ];
-        datapoints.points = []; // Empty data
-        datapoints.pointsize = 2; // Fake size
-
-        // Check if we have extents data
-        if (series.extentdata == null)
-            return;
-
-        // Process our real data
-        var row = 0;
-        for (i = 0; i < series.extentdata.length; i++) {
-            // Skip bad extents
-            if ((series.extentdata[i].start == null) || (series.extentdata[i].end == null))
-                continue;
-
-            if (series.extentdata[i].end < series.extentdata[i].start) {
-                var t = series.extentdata[i].end;
-                series.extentdata[i].end = series.extentdata[i].start;
-                series.extentdata[i].start = t;
-            }
-            if ((series.extentdata[i].labelHAlign != "left") && (series.extentdata[i].labelHAlign != "right"))
-                series.extentdata[i].labelHAlign = series.extents.labelHAlign;
-            if (series.extentdata[i].row == null) {
-                series.extentdata[i].row = row;
-                row = (row+1) % series.extents.rows;
-            } else {
-                row = (series.extentdata[i].row+1) % series.extents.rows;
-            }
-            if (series.extentdata[i].color == null)
-                series.extentdata[i].color = series.extents.color;
-            if (series.extentdata[i].fillColor == null)
-                series.extentdata[i].fillColor = series.extents.fillColor;
-        }
-        
-    };
-
-    function drawSingleExtent(ctx, width, height, xfrom, xto, series, extent) {
-        if (xfrom < 0) xfrom = 0;
-        if (xto > width) xto = width;
-        var bw = xto-xfrom;
-
-        var yfrom;
-        if (series.extents.barVAlign == "top")
-            yfrom = 4 + series.extents.rowHeight*extent.row;
-        else
-            yfrom = height - 4 - series.extents.rowHeight*(extent.row) - series.extents.barHeight;
-
-        if (series.extents.fill) {
-            ctx.fillStyle = extent.fillColor;
-            ctx.fillRect(xfrom, yfrom, bw, series.extents.barHeight);
-        }
-
-        ctx.strokeStyle = extent.color;
-        ctx.strokeRect(xfrom, yfrom, bw, series.extents.barHeight);
-    }
-
-    function drawSingleConnection(ctx, width, height, xfrom, xto, rfrom, rto, series) {
-        if (xfrom < 0) xfrom = 0;
-        if (xto > width) xto = width;
-
-        var yfrom, yto;
-        if (series.extents.barVAlign == "top") {
-            yfrom = 4 + Math.round(series.extents.rowHeight*rfrom) + Math.round(series.extents.barHeight*0.5);
-            yto = 4 + Math.round(series.extents.rowHeight*rto) + Math.round(series.extents.barHeight*0.5);
-        } else {
-            yfrom = height - 4 - Math.round(series.extents.rowHeight*rfrom) - Math.round(series.extents.barHeight*0.5);
-            yto = height - 4 - Math.round(series.extents.rowHeight*rto) - Math.round(series.extents.barHeight*0.5);
-        }
-
-        ctx.beginPath();
-        ctx.moveTo(xfrom, yfrom);
-        ctx.lineTo(xfrom+10, yfrom);
-        ctx.lineTo(xto-10, yto);
-        ctx.lineTo(xto, yto);
-        ctx.lineTo(xto-6, yto-3);
-        ctx.lineTo(xto-6, yto+3);
-        ctx.lineTo(xto, yto);
-        ctx.stroke();
-    }
-
-    function addExtentLabel(placeholder, plotOffset, width, xfrom, xto, series, extent) {
-        var styles = [];
-        if (series.extents.barVAlign == "top")
-            styles.push("top:"+Math.round((plotOffset.top+series.extents.rowHeight*extent.row+4))+"px");
-        else
-            styles.push("bottom:"+Math.round((plotOffset.bottom+series.extents.rowHeight*extent.row+4))+"px");
-        if (extent.labelHAlign == "left")
-            styles.push("left:"+Math.round((plotOffset.left+xfrom+3))+"px");
-        else
-            styles.push("right:"+Math.round((plotOffset.right+(width-xto)+3))+"px");
-        styles.push("");
-
-        placeholder.append('<div '+((extent.id !=null)?('id="'+extent.id+'" '):'')+'class="extentLabel" style="font-size:smaller;position:absolute;'+(styles.join(';'))+'">'+extent.label+'</div>');
-    }
-
-    function drawSeries(plot, ctx, series) {
-        if (!series.extents || !series.extents.show || !series.extentdata)
-            return;
-
-        var placeholder = plot.getPlaceholder();
-        placeholder.find(".extentLabel").remove();
-
-        ctx.save();
-
-        var plotOffset = plot.getPlotOffset();
-        var axes = plot.getAxes();
-        var yf = axes.yaxis.p2c(axes.yaxis.min);
-        var yt = axes.yaxis.p2c(axes.yaxis.max);
-        var ytop = (yf>yt)?yt:yf;
-        var ybot = (yf>yt)?yf:yt;
-        var width = plot.width();
-        var height = plot.height();
-
-        ctx.translate(plotOffset.left, plotOffset.top);
-        ctx.lineJoin = "round";
-
-        for (var i = 0; i < series.extentdata.length; i++) {
-            var xfrom, xto;
-            if ((series.extentdata[i].start == null) || (series.extentdata[i].end == null))
-                continue;
-            if ((series.extentdata[i].start < axes.xaxis.max) && (series.extentdata[i].end > axes.xaxis.min)) {
-                xfrom = axes.xaxis.p2c((series.extentdata[i].start<axes.xaxis.min)?axes.xaxis.min:series.extentdata[i].start);
-                xto = axes.xaxis.p2c((series.extentdata[i].end>axes.xaxis.max)?axes.xaxis.max:series.extentdata[i].end);
-                drawSingleExtent(ctx, width, height, xfrom, xto, series, series.extentdata[i]);
-
-                if (series.extents.showConnections && (series.extentdata[i].start > axes.xaxis.min) && (series.extentdata[i].start < axes.xaxis.max))
-                    if ((series.extentdata[i].depends != null) && (series.extentdata[i].depends.length != null) && (series.extentdata[i].depends.length > 0))
-                        for (var j=0; j<series.extentdata[i].depends.length; j++) {
-                            var k = series.extentdata[i].depends[j];
-                            if ((k < 0) || (k >= series.extentdata.length))
-                                continue;
-                            if ((series.extentdata[k].start == null) || (series.extentdata[k].end == null))
-                                continue;
-                            var cxto = xfrom;
-                            var cxfrom = series.extentdata[k].end;
-                            if (cxfrom < axes.xaxis.min) cxfrom = axes.xaxis.min;
-                            if (cxfrom > axes.xaxis.max) cxfrom = axes.xaxis.max;
-                            cxfrom = axes.xaxis.p2c(cxfrom);
-                            ctx.strokeStyle = series.extents.connectionColor;
-                            drawSingleConnection(ctx, width, height, cxfrom, cxto, series.extentdata[k].row, series.extentdata[i].row, series);
-                        }
-
-                if (series.extents.showLabels && (series.extentdata[i].label != null))
-                    addExtentLabel(placeholder, plotOffset, width, xfrom, xto, series, series.extentdata[i]);
-            }
-        }
-
-        ctx.restore();
-    };
-
-    function init(plot) {
-        plot.hooks.processRawData.push(processRawData);
-        plot.hooks.drawSeries.push(drawSeries);
-    };
-    
-    $.plot.plugins.push({
-        init: init,
-        name: "extents",
-        options: options,
-        version: "0.3"
-    });
-})(jQuery);
+/* 
+ * Copyright 2012, Serge V. Izmaylov 
+ * Released under GPL Version 2 license. 
+ */ 
+ 
+(function ($) { 
+    var options = { 
+        series: { 
+            extents: { 
+                show: false, 
+                lineWidth: 1, 
+                barHeight: 17, 
+                color: "rgba(192, 192, 192, 1.0)", 
+                showConnections: true, 
+                connectionColor: "rgba(0, 192, 128, 0.8)", 
+                fill: true, 
+                fillColor: "rgba(64, 192, 255, 0.5)", 
+                showLabels: true, 
+                rowHeight: 20, 
+                rows: 7, 
+                barVAlign: "top", 
+                labelHAlign: "left" 
+            } 
+        } 
+    }; 
+ 
+    function processRawData(plot, series, data, datapoints) { 
+        if (!series.extents || !series.extents.show) 
+            return; 
+ 
+        // Fool Flot with fake datapoints 
+        datapoints.format = [ // Fake format 
+            { x: true, number: true, required: true }, 
+            { y: true, number: true, required: true }, 
+        ]; 
+        datapoints.points = []; // Empty data 
+        datapoints.pointsize = 2; // Fake size 
+ 
+        // Check if we have extents data 
+        if (series.extentdata == null) 
+            return; 
+ 
+        // Process our real data 
+        var row = 0; 
+        for (i = 0; i < series.extentdata.length; i++) { 
+            // Skip bad extents 
+            if ((series.extentdata[i].start == null) || (series.extentdata[i].end == null)) 
+                continue; 
+ 
+            if (series.extentdata[i].end < series.extentdata[i].start) { 
+                var t = series.extentdata[i].end; 
+                series.extentdata[i].end = series.extentdata[i].start; 
+                series.extentdata[i].start = t; 
+            } 
+            if ((series.extentdata[i].labelHAlign != "left") && (series.extentdata[i].labelHAlign != "right")) 
+                series.extentdata[i].labelHAlign = series.extents.labelHAlign; 
+            if (series.extentdata[i].row == null) { 
+                series.extentdata[i].row = row; 
+                row = (row+1) % series.extents.rows; 
+            } else { 
+                row = (series.extentdata[i].row+1) % series.extents.rows; 
+            } 
+            if (series.extentdata[i].color == null) 
+                series.extentdata[i].color = series.extents.color; 
+            if (series.extentdata[i].fillColor == null) 
+                series.extentdata[i].fillColor = series.extents.fillColor; 
+        } 
+         
+    }; 
+ 
+    function drawSingleExtent(ctx, width, height, xfrom, xto, series, extent) { 
+        if (xfrom < 0) xfrom = 0; 
+        if (xto > width) xto = width; 
+        var bw = xto-xfrom; 
+ 
+        var yfrom; 
+        if (series.extents.barVAlign == "top") 
+            yfrom = 4 + series.extents.rowHeight*extent.row; 
+        else 
+            yfrom = height - 4 - series.extents.rowHeight*(extent.row) - series.extents.barHeight; 
+ 
+        if (series.extents.fill) { 
+            ctx.fillStyle = extent.fillColor; 
+            ctx.fillRect(xfrom, yfrom, bw, series.extents.barHeight); 
+        } 
+ 
+        ctx.strokeStyle = extent.color; 
+        ctx.strokeRect(xfrom, yfrom, bw, series.extents.barHeight); 
+    } 
+ 
+    function drawSingleConnection(ctx, width, height, xfrom, xto, rfrom, rto, series) { 
+        if (xfrom < 0) xfrom = 0; 
+        if (xto > width) xto = width; 
+ 
+        var yfrom, yto; 
+        if (series.extents.barVAlign == "top") { 
+            yfrom = 4 + Math.round(series.extents.rowHeight*rfrom) + Math.round(series.extents.barHeight*0.5); 
+            yto = 4 + Math.round(series.extents.rowHeight*rto) + Math.round(series.extents.barHeight*0.5); 
+        } else { 
+            yfrom = height - 4 - Math.round(series.extents.rowHeight*rfrom) - Math.round(series.extents.barHeight*0.5); 
+            yto = height - 4 - Math.round(series.extents.rowHeight*rto) - Math.round(series.extents.barHeight*0.5); 
+        } 
+ 
+        ctx.beginPath(); 
+        ctx.moveTo(xfrom, yfrom); 
+        ctx.lineTo(xfrom+10, yfrom); 
+        ctx.lineTo(xto-10, yto); 
+        ctx.lineTo(xto, yto); 
+        ctx.lineTo(xto-6, yto-3); 
+        ctx.lineTo(xto-6, yto+3); 
+        ctx.lineTo(xto, yto); 
+        ctx.stroke(); 
+    } 
+ 
+    function addExtentLabel(placeholder, plotOffset, width, xfrom, xto, series, extent) { 
+        var styles = []; 
+        if (series.extents.barVAlign == "top") 
+            styles.push("top:"+Math.round((plotOffset.top+series.extents.rowHeight*extent.row+4))+"px"); 
+        else 
+            styles.push("bottom:"+Math.round((plotOffset.bottom+series.extents.rowHeight*extent.row+4))+"px"); 
+        if (extent.labelHAlign == "left") 
+            styles.push("left:"+Math.round((plotOffset.left+xfrom+3))+"px"); 
+        else 
+            styles.push("right:"+Math.round((plotOffset.right+(width-xto)+3))+"px"); 
+        styles.push(""); 
+ 
+        placeholder.append('<div '+((extent.id !=null)?('id="'+extent.id+'" '):'')+'class="extentLabel" style="font-size:smaller;position:absolute;'+(styles.join(';'))+'">'+extent.label+'</div>'); 
+    } 
+ 
+    function drawSeries(plot, ctx, series) { 
+        if (!series.extents || !series.extents.show || !series.extentdata) 
+            return; 
+ 
+        var placeholder = plot.getPlaceholder(); 
+        placeholder.find(".extentLabel").remove(); 
+ 
+        ctx.save(); 
+ 
+        var plotOffset = plot.getPlotOffset(); 
+        var axes = plot.getAxes(); 
+        var yf = axes.yaxis.p2c(axes.yaxis.min); 
+        var yt = axes.yaxis.p2c(axes.yaxis.max); 
+        var ytop = (yf>yt)?yt:yf; 
+        var ybot = (yf>yt)?yf:yt; 
+        var width = plot.width(); 
+        var height = plot.height(); 
+ 
+        ctx.translate(plotOffset.left, plotOffset.top); 
+        ctx.lineJoin = "round"; 
+ 
+        for (var i = 0; i < series.extentdata.length; i++) { 
+            var xfrom, xto; 
+            if ((series.extentdata[i].start == null) || (series.extentdata[i].end == null)) 
+                continue; 
+            if ((series.extentdata[i].start < axes.xaxis.max) && (series.extentdata[i].end > axes.xaxis.min)) { 
+                xfrom = axes.xaxis.p2c((series.extentdata[i].start<axes.xaxis.min)?axes.xaxis.min:series.extentdata[i].start); 
+                xto = axes.xaxis.p2c((series.extentdata[i].end>axes.xaxis.max)?axes.xaxis.max:series.extentdata[i].end); 
+                drawSingleExtent(ctx, width, height, xfrom, xto, series, series.extentdata[i]); 
+ 
+                if (series.extents.showConnections && (series.extentdata[i].start > axes.xaxis.min) && (series.extentdata[i].start < axes.xaxis.max)) 
+                    if ((series.extentdata[i].depends != null) && (series.extentdata[i].depends.length != null) && (series.extentdata[i].depends.length > 0)) 
+                        for (var j=0; j<series.extentdata[i].depends.length; j++) { 
+                            var k = series.extentdata[i].depends[j]; 
+                            if ((k < 0) || (k >= series.extentdata.length)) 
+                                continue; 
+                            if ((series.extentdata[k].start == null) || (series.extentdata[k].end == null)) 
+                                continue; 
+                            var cxto = xfrom; 
+                            var cxfrom = series.extentdata[k].end; 
+                            if (cxfrom < axes.xaxis.min) cxfrom = axes.xaxis.min; 
+                            if (cxfrom > axes.xaxis.max) cxfrom = axes.xaxis.max; 
+                            cxfrom = axes.xaxis.p2c(cxfrom); 
+                            ctx.strokeStyle = series.extents.connectionColor; 
+                            drawSingleConnection(ctx, width, height, cxfrom, cxto, series.extentdata[k].row, series.extentdata[i].row, series); 
+                        } 
+ 
+                if (series.extents.showLabels && (series.extentdata[i].label != null)) 
+                    addExtentLabel(placeholder, plotOffset, width, xfrom, xto, series, series.extentdata[i]); 
+            } 
+        } 
+ 
+        ctx.restore(); 
+    }; 
+ 
+    function init(plot) { 
+        plot.hooks.processRawData.push(processRawData); 
+        plot.hooks.drawSeries.push(drawSeries); 
+    }; 
+     
+    $.plot.plugins.push({ 
+        init: init, 
+        name: "extents", 
+        options: options, 
+        version: "0.3" 
+    }); 
+})(jQuery); 
diff --git a/library/cpp/lwtrace/mon/static/js/jquery.flot.min.js b/library/cpp/lwtrace/mon/static/js/jquery.flot.min.js
index 81083f1819..c39799c804 100644
--- a/library/cpp/lwtrace/mon/static/js/jquery.flot.min.js
+++ b/library/cpp/lwtrace/mon/static/js/jquery.flot.min.js
@@ -1,8 +1,8 @@
-/* Javascript plotting library for jQuery, version 0.8.3.
-
-Copyright (c) 2007-2014 IOLA and Ole Laursen.
-Licensed under the MIT license.
-
-*/
-(function($){$.color={};$.color.make=function(r,g,b,a){var o={};o.r=r||0;o.g=g||0;o.b=b||0;o.a=a!=null?a:1;o.add=function(c,d){for(var i=0;i<c.length;++i)o[c.charAt(i)]+=d;return o.normalize()};o.scale=function(c,f){for(var i=0;i<c.length;++i)o[c.charAt(i)]*=f;return o.normalize()};o.toString=function(){if(o.a>=1){return"rgb("+[o.r,o.g,o.b].join(",")+")"}else{return"rgba("+[o.r,o.g,o.b,o.a].join(",")+")"}};o.normalize=function(){function clamp(min,value,max){return value<min?min:value>max?max:value}o.r=clamp(0,parseInt(o.r),255);o.g=clamp(0,parseInt(o.g),255);o.b=clamp(0,parseInt(o.b),255);o.a=clamp(0,o.a,1);return o};o.clone=function(){return $.color.make(o.r,o.b,o.g,o.a)};return o.normalize()};$.color.extract=function(elem,css){var c;do{c=elem.css(css).toLowerCase();if(c!=""&&c!="transparent")break;elem=elem.parent()}while(elem.length&&!$.nodeName(elem.get(0),"body"));if(c=="rgba(0, 0, 0, 0)")c="transparent";return $.color.parse(c)};$.color.parse=function(str){var res,m=$.color.make;if(res=/rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(str))return m(parseInt(res[1],10),parseInt(res[2],10),parseInt(res[3],10));if(res=/rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str))return m(parseInt(res[1],10),parseInt(res[2],10),parseInt(res[3],10),parseFloat(res[4]));if(res=/rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(str))return m(parseFloat(res[1])*2.55,parseFloat(res[2])*2.55,parseFloat(res[3])*2.55);if(res=/rgba\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str))return m(parseFloat(res[1])*2.55,parseFloat(res[2])*2.55,parseFloat(res[3])*2.55,parseFloat(res[4]));if(res=/#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(str))return m(parseInt(res[1],16),parseInt(res[2],16),parseInt(res[3],16));if(res=/#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(str))return m(parseInt(res[1]+res[1],16),parseInt(res[2]+res[2],16),parseInt(res[3]+res[3],16));var name=$.trim(str).toLowerCase();if(name=="transparent")return m(255,255,255,0);else{res=lookupColors[name]||[0,0,0];return m(res[0],res[1],res[2])}};var lookupColors={aqua:[0,255,255],azure:[240,255,255],beige:[245,245,220],black:[0,0,0],blue:[0,0,255],brown:[165,42,42],cyan:[0,255,255],darkblue:[0,0,139],darkcyan:[0,139,139],darkgrey:[169,169,169],darkgreen:[0,100,0],darkkhaki:[189,183,107],darkmagenta:[139,0,139],darkolivegreen:[85,107,47],darkorange:[255,140,0],darkorchid:[153,50,204],darkred:[139,0,0],darksalmon:[233,150,122],darkviolet:[148,0,211],fuchsia:[255,0,255],gold:[255,215,0],green:[0,128,0],indigo:[75,0,130],khaki:[240,230,140],lightblue:[173,216,230],lightcyan:[224,255,255],lightgreen:[144,238,144],lightgrey:[211,211,211],lightpink:[255,182,193],lightyellow:[255,255,224],lime:[0,255,0],magenta:[255,0,255],maroon:[128,0,0],navy:[0,0,128],olive:[128,128,0],orange:[255,165,0],pink:[255,192,203],purple:[128,0,128],violet:[128,0,128],red:[255,0,0],silver:[192,192,192],white:[255,255,255],yellow:[255,255,0]}})(jQuery);(function($){var hasOwnProperty=Object.prototype.hasOwnProperty;if(!$.fn.detach){$.fn.detach=function(){return this.each(function(){if(this.parentNode){this.parentNode.removeChild(this)}})}}function Canvas(cls,container){var element=container.children("."+cls)[0];if(element==null){element=document.createElement("canvas");element.className=cls;$(element).css({direction:"ltr",position:"absolute",left:0,top:0}).appendTo(container);if(!element.getContext){if(window.G_vmlCanvasManager){element=window.G_vmlCanvasManager.initElement(element)}else{throw new Error("Canvas is not available. 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i=0,position;position=positions[i];i++){if(position.x==x&&position.y==y){position.active=true;return}}position={active:true,rendered:false,element:positions.length?info.element.clone():info.element,x:x,y:y};positions.push(position);position.element.css({top:Math.round(y),left:Math.round(x),"text-align":halign})};Canvas.prototype.removeText=function(layer,x,y,text,font,angle){if(text==null){var layerCache=this._textCache[layer];if(layerCache!=null){for(var styleKey in layerCache){if(hasOwnProperty.call(layerCache,styleKey)){var styleCache=layerCache[styleKey];for(var key in styleCache){if(hasOwnProperty.call(styleCache,key)){var positions=styleCache[key].positions;for(var i=0,position;position=positions[i];i++){position.active=false}}}}}}}else{var positions=this.getTextInfo(layer,text,font,angle).positions;for(var i=0,position;position=positions[i];i++){if(position.x==x&&position.y==y){position.active=false}}}};function Plot(placeholder,data_,options_,plugins){var series=[],options={colors:["#edc240","#afd8f8","#cb4b4b","#4da74d","#9440ed"],legend:{show:true,noColumns:1,labelFormatter:null,labelBoxBorderColor:"#ccc",container:null,position:"ne",margin:5,backgroundColor:null,backgroundOpacity:.85,sorted:null},xaxis:{show:null,position:"bottom",mode:null,font:null,color:null,tickColor:null,transform:null,inverseTransform:null,min:null,max:null,autoscaleMargin:null,ticks:null,tickFormatter:null,labelWidth:null,labelHeight:null,reserveSpace:null,tickLength:null,alignTicksWithAxis:null,tickDecimals:null,tickSize:null,minTickSize:null},yaxis:{autoscaleMargin:.02,position:"left"},xaxes:[],yaxes:[],series:{points:{show:false,radius:3,lineWidth:2,fill:true,fillColor:"#ffffff",symbol:"circle"},lines:{lineWidth:2,fill:false,fillColor:null,steps:false},bars:{show:false,lineWidth:2,barWidth:1,fill:true,fillColor:null,align:"left",horizontal:false,zero:true},shadowSize:3,highlightColor:null},grid:{show:true,aboveData:false,color:"#545454",backgroundColor:null,borderColor:null,tickColor:null,margin:0,labelMargin:5,axisMargin:8,borderWidth:2,minBorderMargin:null,markings:null,markingsColor:"#f4f4f4",markingsLineWidth:2,clickable:false,hoverable:false,autoHighlight:true,mouseActiveRadius:10},interaction:{redrawOverlayInterval:1e3/60},hooks:{}},surface=null,overlay=null,eventHolder=null,ctx=null,octx=null,xaxes=[],yaxes=[],plotOffset={left:0,right:0,top:0,bottom:0},plotWidth=0,plotHeight=0,hooks={processOptions:[],processRawData:[],processDatapoints:[],processOffset:[],drawBackground:[],drawSeries:[],draw:[],bindEvents:[],drawOverlay:[],shutdown:[]},plot=this;plot.setData=setData;plot.setupGrid=setupGrid;plot.draw=draw;plot.getPlaceholder=function(){return placeholder};plot.getCanvas=function(){return surface.element};plot.getPlotOffset=function(){return plotOffset};plot.width=function(){return plotWidth};plot.height=function(){return plotHeight};plot.offset=function(){var o=eventHolder.offset();o.left+=plotOffset.left;o.top+=plotOffset.top;return o};plot.getData=function(){return series};plot.getAxes=function(){var res={},i;$.each(xaxes.concat(yaxes),function(_,axis){if(axis)res[axis.direction+(axis.n!=1?axis.n:"")+"axis"]=axis});return res};plot.getXAxes=function(){return xaxes};plot.getYAxes=function(){return yaxes};plot.c2p=canvasToAxisCoords;plot.p2c=axisToCanvasCoords;plot.getOptions=function(){return options};plot.highlight=highlight;plot.unhighlight=unhighlight;plot.triggerRedrawOverlay=triggerRedrawOverlay;plot.pointOffset=function(point){return{left:parseInt(xaxes[axisNumber(point,"x")-1].p2c(+point.x)+plotOffset.left,10),top:parseInt(yaxes[axisNumber(point,"y")-1].p2c(+point.y)+plotOffset.top,10)}};plot.shutdown=shutdown;plot.destroy=function(){shutdown();placeholder.removeData("plot").empty();series=[];options=null;surface=null;overlay=null;eventHolder=null;ctx=null;octx=null;xaxes=[];yaxes=[];hooks=null;highlights=[];plot=null};plot.resize=function(){var width=placeholder.width(),height=placeholder.height();surface.resize(width,height);overlay.resize(width,height)};plot.hooks=hooks;initPlugins(plot);parseOptions(options_);setupCanvases();setData(data_);setupGrid();draw();bindEvents();function executeHooks(hook,args){args=[plot].concat(args);for(var i=0;i<hook.length;++i)hook[i].apply(this,args)}function initPlugins(){var classes={Canvas:Canvas};for(var i=0;i<plugins.length;++i){var p=plugins[i];p.init(plot,classes);if(p.options)$.extend(true,options,p.options)}}function parseOptions(opts){$.extend(true,options,opts);if(opts&&opts.colors){options.colors=opts.colors}if(options.xaxis.color==null)options.xaxis.color=$.color.parse(options.grid.color).scale("a",.22).toString();if(options.yaxis.color==null)options.yaxis.color=$.color.parse(options.grid.color).scale("a",.22).toString();if(options.xaxis.tickColor==null)options.xaxis.tickColor=options.grid.tickColor||options.xaxis.color;if(options.yaxis.tickColor==null)options.yaxis.tickColor=options.grid.tickColor||options.yaxis.color;if(options.grid.borderColor==null)options.grid.borderColor=options.grid.color;if(options.grid.tickColor==null)options.grid.tickColor=$.color.parse(options.grid.color).scale("a",.22).toString();var i,axisOptions,axisCount,fontSize=placeholder.css("font-size"),fontSizeDefault=fontSize?+fontSize.replace("px",""):13,fontDefaults={style:placeholder.css("font-style"),size:Math.round(.8*fontSizeDefault),variant:placeholder.css("font-variant"),weight:placeholder.css("font-weight"),family:placeholder.css("font-family")};axisCount=options.xaxes.length||1;for(i=0;i<axisCount;++i){axisOptions=options.xaxes[i];if(axisOptions&&!axisOptions.tickColor){axisOptions.tickColor=axisOptions.color}axisOptions=$.extend(true,{},options.xaxis,axisOptions);options.xaxes[i]=axisOptions;if(axisOptions.font){axisOptions.font=$.extend({},fontDefaults,axisOptions.font);if(!axisOptions.font.color){axisOptions.font.color=axisOptions.color}if(!axisOptions.font.lineHeight){axisOptions.font.lineHeight=Math.round(axisOptions.font.size*1.15)}}}axisCount=options.yaxes.length||1;for(i=0;i<axisCount;++i){axisOptions=options.yaxes[i];if(axisOptions&&!axisOptions.tickColor){axisOptions.tickColor=axisOptions.color}axisOptions=$.extend(true,{},options.yaxis,axisOptions);options.yaxes[i]=axisOptions;if(axisOptions.font){axisOptions.font=$.extend({},fontDefaults,axisOptions.font);if(!axisOptions.font.color){axisOptions.font.color=axisOptions.color}if(!axisOptions.font.lineHeight){axisOptions.font.lineHeight=Math.round(axisOptions.font.size*1.15)}}}if(options.xaxis.noTicks&&options.xaxis.ticks==null)options.xaxis.ticks=options.xaxis.noTicks;if(options.yaxis.noTicks&&options.yaxis.ticks==null)options.yaxis.ticks=options.yaxis.noTicks;if(options.x2axis){options.xaxes[1]=$.extend(true,{},options.xaxis,options.x2axis);options.xaxes[1].position="top";if(options.x2axis.min==null){options.xaxes[1].min=null}if(options.x2axis.max==null){options.xaxes[1].max=null}}if(options.y2axis){options.yaxes[1]=$.extend(true,{},options.yaxis,options.y2axis);options.yaxes[1].position="right";if(options.y2axis.min==null){options.yaxes[1].min=null}if(options.y2axis.max==null){options.yaxes[1].max=null}}if(options.grid.coloredAreas)options.grid.markings=options.grid.coloredAreas;if(options.grid.coloredAreasColor)options.grid.markingsColor=options.grid.coloredAreasColor;if(options.lines)$.extend(true,options.series.lines,options.lines);if(options.points)$.extend(true,options.series.points,options.points);if(options.bars)$.extend(true,options.series.bars,options.bars);if(options.shadowSize!=null)options.series.shadowSize=options.shadowSize;if(options.highlightColor!=null)options.series.highlightColor=options.highlightColor;for(i=0;i<options.xaxes.length;++i)getOrCreateAxis(xaxes,i+1).options=options.xaxes[i];for(i=0;i<options.yaxes.length;++i)getOrCreateAxis(yaxes,i+1).options=options.yaxes[i];for(var n in hooks)if(options.hooks[n]&&options.hooks[n].length)hooks[n]=hooks[n].concat(options.hooks[n]);executeHooks(hooks.processOptions,[options])}function setData(d){series=parseData(d);fillInSeriesOptions();processData()}function parseData(d){var res=[];for(var i=0;i<d.length;++i){var s=$.extend(true,{},options.series);if(d[i].data!=null){s.data=d[i].data;delete d[i].data;$.extend(true,s,d[i]);d[i].data=s.data}else s.data=d[i];res.push(s)}return res}function axisNumber(obj,coord){var a=obj[coord+"axis"];if(typeof a=="object")a=a.n;if(typeof a!="number")a=1;return a}function allAxes(){return $.grep(xaxes.concat(yaxes),function(a){return a})}function canvasToAxisCoords(pos){var res={},i,axis;for(i=0;i<xaxes.length;++i){axis=xaxes[i];if(axis&&axis.used)res["x"+axis.n]=axis.c2p(pos.left)}for(i=0;i<yaxes.length;++i){axis=yaxes[i];if(axis&&axis.used)res["y"+axis.n]=axis.c2p(pos.top)}if(res.x1!==undefined)res.x=res.x1;if(res.y1!==undefined)res.y=res.y1;return res}function axisToCanvasCoords(pos){var res={},i,axis,key;for(i=0;i<xaxes.length;++i){axis=xaxes[i];if(axis&&axis.used){key="x"+axis.n;if(pos[key]==null&&axis.n==1)key="x";if(pos[key]!=null){res.left=axis.p2c(pos[key]);break}}}for(i=0;i<yaxes.length;++i){axis=yaxes[i];if(axis&&axis.used){key="y"+axis.n;if(pos[key]==null&&axis.n==1)key="y";if(pos[key]!=null){res.top=axis.p2c(pos[key]);break}}}return res}function getOrCreateAxis(axes,number){if(!axes[number-1])axes[number-1]={n:number,direction:axes==xaxes?"x":"y",options:$.extend(true,{},axes==xaxes?options.xaxis:options.yaxis)};return axes[number-1]}function fillInSeriesOptions(){var neededColors=series.length,maxIndex=-1,i;for(i=0;i<series.length;++i){var sc=series[i].color;if(sc!=null){neededColors--;if(typeof sc=="number"&&sc>maxIndex){maxIndex=sc}}}if(neededColors<=maxIndex){neededColors=maxIndex+1}var c,colors=[],colorPool=options.colors,colorPoolSize=colorPool.length,variation=0;for(i=0;i<neededColors;i++){c=$.color.parse(colorPool[i%colorPoolSize]||"#666");if(i%colorPoolSize==0&&i){if(variation>=0){if(variation<.5){variation=-variation-.2}else variation=0}else variation=-variation}colors[i]=c.scale("rgb",1+variation)}var colori=0,s;for(i=0;i<series.length;++i){s=series[i];if(s.color==null){s.color=colors[colori].toString();++colori}else if(typeof s.color=="number")s.color=colors[s.color].toString();if(s.lines.show==null){var v,show=true;for(v in s)if(s[v]&&s[v].show){show=false;break}if(show)s.lines.show=true}if(s.lines.zero==null){s.lines.zero=!!s.lines.fill}s.xaxis=getOrCreateAxis(xaxes,axisNumber(s,"x"));s.yaxis=getOrCreateAxis(yaxes,axisNumber(s,"y"))}}function processData(){var topSentry=Number.POSITIVE_INFINITY,bottomSentry=Number.NEGATIVE_INFINITY,fakeInfinity=Number.MAX_VALUE,i,j,k,m,length,s,points,ps,x,y,axis,val,f,p,data,format;function updateAxis(axis,min,max){if(min<axis.datamin&&min!=-fakeInfinity)axis.datamin=min;if(max>axis.datamax&&max!=fakeInfinity)axis.datamax=max}$.each(allAxes(),function(_,axis){axis.datamin=topSentry;axis.datamax=bottomSentry;axis.used=false});for(i=0;i<series.length;++i){s=series[i];s.datapoints={points:[]};executeHooks(hooks.processRawData,[s,s.data,s.datapoints])}for(i=0;i<series.length;++i){s=series[i];data=s.data;format=s.datapoints.format;if(!format){format=[];format.push({x:true,number:true,required:true});format.push({y:true,number:true,required:true});if(s.bars.show||s.lines.show&&s.lines.fill){var autoscale=!!(s.bars.show&&s.bars.zero||s.lines.show&&s.lines.zero);format.push({y:true,number:true,required:false,defaultValue:0,autoscale:autoscale});if(s.bars.horizontal){delete format[format.length-1].y;format[format.length-1].x=true}}s.datapoints.format=format}if(s.datapoints.pointsize!=null)continue;s.datapoints.pointsize=format.length;ps=s.datapoints.pointsize;points=s.datapoints.points;var insertSteps=s.lines.show&&s.lines.steps;s.xaxis.used=s.yaxis.used=true;for(j=k=0;j<data.length;++j,k+=ps){p=data[j];var nullify=p==null;if(!nullify){for(m=0;m<ps;++m){val=p[m];f=format[m];if(f){if(f.number&&val!=null){val=+val;if(isNaN(val))val=null;else if(val==Infinity)val=fakeInfinity;else if(val==-Infinity)val=-fakeInfinity}if(val==null){if(f.required)nullify=true;if(f.defaultValue!=null)val=f.defaultValue}}points[k+m]=val}}if(nullify){for(m=0;m<ps;++m){val=points[k+m];if(val!=null){f=format[m];if(f.autoscale!==false){if(f.x){updateAxis(s.xaxis,val,val)}if(f.y){updateAxis(s.yaxis,val,val)}}}points[k+m]=null}}else{if(insertSteps&&k>0&&points[k-ps]!=null&&points[k-ps]!=points[k]&&points[k-ps+1]!=points[k+1]){for(m=0;m<ps;++m)points[k+ps+m]=points[k+m];points[k+1]=points[k-ps+1];k+=ps}}}}for(i=0;i<series.length;++i){s=series[i];executeHooks(hooks.processDatapoints,[s,s.datapoints])}for(i=0;i<series.length;++i){s=series[i];points=s.datapoints.points;ps=s.datapoints.pointsize;format=s.datapoints.format;var xmin=topSentry,ymin=topSentry,xmax=bottomSentry,ymax=bottomSentry;for(j=0;j<points.length;j+=ps){if(points[j]==null)continue;for(m=0;m<ps;++m){val=points[j+m];f=format[m];if(!f||f.autoscale===false||val==fakeInfinity||val==-fakeInfinity)continue;if(f.x){if(val<xmin)xmin=val;if(val>xmax)xmax=val}if(f.y){if(val<ymin)ymin=val;if(val>ymax)ymax=val}}}if(s.bars.show){var delta;switch(s.bars.align){case"left":delta=0;break;case"right":delta=-s.bars.barWidth;break;default:delta=-s.bars.barWidth/2}if(s.bars.horizontal){ymin+=delta;ymax+=delta+s.bars.barWidth}else{xmin+=delta;xmax+=delta+s.bars.barWidth}}updateAxis(s.xaxis,xmin,xmax);updateAxis(s.yaxis,ymin,ymax)}$.each(allAxes(),function(_,axis){if(axis.datamin==topSentry)axis.datamin=null;if(axis.datamax==bottomSentry)axis.datamax=null})}function setupCanvases(){placeholder.css("padding",0).children().filter(function(){return!$(this).hasClass("flot-overlay")&&!$(this).hasClass("flot-base")}).remove();if(placeholder.css("position")=="static")placeholder.css("position","relative");surface=new Canvas("flot-base",placeholder);overlay=new Canvas("flot-overlay",placeholder);ctx=surface.context;octx=overlay.context;eventHolder=$(overlay.element).unbind();var existing=placeholder.data("plot");if(existing){existing.shutdown();overlay.clear()}placeholder.data("plot",plot)}function bindEvents(){if(options.grid.hoverable){eventHolder.mousemove(onMouseMove);eventHolder.bind("mouseleave",onMouseLeave)}if(options.grid.clickable)eventHolder.click(onClick);executeHooks(hooks.bindEvents,[eventHolder])}function shutdown(){if(redrawTimeout)clearTimeout(redrawTimeout);eventHolder.unbind("mousemove",onMouseMove);eventHolder.unbind("mouseleave",onMouseLeave);eventHolder.unbind("click",onClick);executeHooks(hooks.shutdown,[eventHolder])}function setTransformationHelpers(axis){function identity(x){return x}var s,m,t=axis.options.transform||identity,it=axis.options.inverseTransform;if(axis.direction=="x"){s=axis.scale=plotWidth/Math.abs(t(axis.max)-t(axis.min));m=Math.min(t(axis.max),t(axis.min))}else{s=axis.scale=plotHeight/Math.abs(t(axis.max)-t(axis.min));s=-s;m=Math.max(t(axis.max),t(axis.min))}if(t==identity)axis.p2c=function(p){return(p-m)*s};else axis.p2c=function(p){return(t(p)-m)*s};if(!it)axis.c2p=function(c){return m+c/s};else axis.c2p=function(c){return it(m+c/s)}}function measureTickLabels(axis){var opts=axis.options,ticks=axis.ticks||[],labelWidth=opts.labelWidth||0,labelHeight=opts.labelHeight||0,maxWidth=labelWidth||(axis.direction=="x"?Math.floor(surface.width/(ticks.length||1)):null),legacyStyles=axis.direction+"Axis "+axis.direction+axis.n+"Axis",layer="flot-"+axis.direction+"-axis flot-"+axis.direction+axis.n+"-axis "+legacyStyles,font=opts.font||"flot-tick-label tickLabel";for(var i=0;i<ticks.length;++i){var t=ticks[i];if(!t.label)continue;var info=surface.getTextInfo(layer,t.label,font,null,maxWidth);labelWidth=Math.max(labelWidth,info.width);labelHeight=Math.max(labelHeight,info.height)}axis.labelWidth=opts.labelWidth||labelWidth;axis.labelHeight=opts.labelHeight||labelHeight}function allocateAxisBoxFirstPhase(axis){var lw=axis.labelWidth,lh=axis.labelHeight,pos=axis.options.position,isXAxis=axis.direction==="x",tickLength=axis.options.tickLength,axisMargin=options.grid.axisMargin,padding=options.grid.labelMargin,innermost=true,outermost=true,first=true,found=false;$.each(isXAxis?xaxes:yaxes,function(i,a){if(a&&(a.show||a.reserveSpace)){if(a===axis){found=true}else if(a.options.position===pos){if(found){outermost=false}else{innermost=false}}if(!found){first=false}}});if(outermost){axisMargin=0}if(tickLength==null){tickLength=first?"full":5}if(!isNaN(+tickLength))padding+=+tickLength;if(isXAxis){lh+=padding;if(pos=="bottom"){plotOffset.bottom+=lh+axisMargin;axis.box={top:surface.height-plotOffset.bottom,height:lh}}else{axis.box={top:plotOffset.top+axisMargin,height:lh};plotOffset.top+=lh+axisMargin}}else{lw+=padding;if(pos=="left"){axis.box={left:plotOffset.left+axisMargin,width:lw};plotOffset.left+=lw+axisMargin}else{plotOffset.right+=lw+axisMargin;axis.box={left:surface.width-plotOffset.right,width:lw}}}axis.position=pos;axis.tickLength=tickLength;axis.box.padding=padding;axis.innermost=innermost}function allocateAxisBoxSecondPhase(axis){if(axis.direction=="x"){axis.box.left=plotOffset.left-axis.labelWidth/2;axis.box.width=surface.width-plotOffset.left-plotOffset.right+axis.labelWidth}else{axis.box.top=plotOffset.top-axis.labelHeight/2;axis.box.height=surface.height-plotOffset.bottom-plotOffset.top+axis.labelHeight}}function adjustLayoutForThingsStickingOut(){var minMargin=options.grid.minBorderMargin,axis,i;if(minMargin==null){minMargin=0;for(i=0;i<series.length;++i)minMargin=Math.max(minMargin,2*(series[i].points.radius+series[i].points.lineWidth/2))}var margins={left:minMargin,right:minMargin,top:minMargin,bottom:minMargin};$.each(allAxes(),function(_,axis){if(axis.reserveSpace&&axis.ticks&&axis.ticks.length){if(axis.direction==="x"){margins.left=Math.max(margins.left,axis.labelWidth/2);margins.right=Math.max(margins.right,axis.labelWidth/2)}else{margins.bottom=Math.max(margins.bottom,axis.labelHeight/2);margins.top=Math.max(margins.top,axis.labelHeight/2)}}});plotOffset.left=Math.ceil(Math.max(margins.left,plotOffset.left));plotOffset.right=Math.ceil(Math.max(margins.right,plotOffset.right));plotOffset.top=Math.ceil(Math.max(margins.top,plotOffset.top));plotOffset.bottom=Math.ceil(Math.max(margins.bottom,plotOffset.bottom))}function setupGrid(){var i,axes=allAxes(),showGrid=options.grid.show;for(var a in plotOffset){var margin=options.grid.margin||0;plotOffset[a]=typeof margin=="number"?margin:margin[a]||0}executeHooks(hooks.processOffset,[plotOffset]);for(var a in plotOffset){if(typeof options.grid.borderWidth=="object"){plotOffset[a]+=showGrid?options.grid.borderWidth[a]:0}else{plotOffset[a]+=showGrid?options.grid.borderWidth:0}}$.each(axes,function(_,axis){var axisOpts=axis.options;axis.show=axisOpts.show==null?axis.used:axisOpts.show;axis.reserveSpace=axisOpts.reserveSpace==null?axis.show:axisOpts.reserveSpace;setRange(axis)});if(showGrid){var allocatedAxes=$.grep(axes,function(axis){return axis.show||axis.reserveSpace});$.each(allocatedAxes,function(_,axis){setupTickGeneration(axis);setTicks(axis);snapRangeToTicks(axis,axis.ticks);measureTickLabels(axis)});for(i=allocatedAxes.length-1;i>=0;--i)allocateAxisBoxFirstPhase(allocatedAxes[i]);adjustLayoutForThingsStickingOut();$.each(allocatedAxes,function(_,axis){allocateAxisBoxSecondPhase(axis)})}plotWidth=surface.width-plotOffset.left-plotOffset.right;plotHeight=surface.height-plotOffset.bottom-plotOffset.top;$.each(axes,function(_,axis){setTransformationHelpers(axis)});if(showGrid){drawAxisLabels()}insertLegend()}function setRange(axis){var opts=axis.options,min=+(opts.min!=null?opts.min:axis.datamin),max=+(opts.max!=null?opts.max:axis.datamax),delta=max-min;if(delta==0){var widen=max==0?1:.01;if(opts.min==null)min-=widen;if(opts.max==null||opts.min!=null)max+=widen}else{var margin=opts.autoscaleMargin;if(margin!=null){if(opts.min==null){min-=delta*margin;if(min<0&&axis.datamin!=null&&axis.datamin>=0)min=0}if(opts.max==null){max+=delta*margin;if(max>0&&axis.datamax!=null&&axis.datamax<=0)max=0}}}axis.min=min;axis.max=max}function setupTickGeneration(axis){var opts=axis.options;var noTicks;if(typeof opts.ticks=="number"&&opts.ticks>0)noTicks=opts.ticks;else noTicks=.3*Math.sqrt(axis.direction=="x"?surface.width:surface.height);var delta=(axis.max-axis.min)/noTicks,dec=-Math.floor(Math.log(delta)/Math.LN10),maxDec=opts.tickDecimals;if(maxDec!=null&&dec>maxDec){dec=maxDec}var magn=Math.pow(10,-dec),norm=delta/magn,size;if(norm<1.5){size=1}else if(norm<3){size=2;if(norm>2.25&&(maxDec==null||dec+1<=maxDec)){size=2.5;++dec}}else if(norm<7.5){size=5}else{size=10}size*=magn;if(opts.minTickSize!=null&&size<opts.minTickSize){size=opts.minTickSize}axis.delta=delta;axis.tickDecimals=Math.max(0,maxDec!=null?maxDec:dec);axis.tickSize=opts.tickSize||size;if(opts.mode=="time"&&!axis.tickGenerator){throw new Error("Time mode requires the flot.time plugin.")}if(!axis.tickGenerator){axis.tickGenerator=function(axis){var ticks=[],start=floorInBase(axis.min,axis.tickSize),i=0,v=Number.NaN,prev;do{prev=v;v=start+i*axis.tickSize;ticks.push(v);++i}while(v<axis.max&&v!=prev);return ticks};axis.tickFormatter=function(value,axis){var factor=axis.tickDecimals?Math.pow(10,axis.tickDecimals):1;var formatted=""+Math.round(value*factor)/factor;if(axis.tickDecimals!=null){var decimal=formatted.indexOf(".");var precision=decimal==-1?0:formatted.length-decimal-1;if(precision<axis.tickDecimals){return(precision?formatted:formatted+".")+(""+factor).substr(1,axis.tickDecimals-precision)}}return formatted}}if($.isFunction(opts.tickFormatter))axis.tickFormatter=function(v,axis){return""+opts.tickFormatter(v,axis)};if(opts.alignTicksWithAxis!=null){var otherAxis=(axis.direction=="x"?xaxes:yaxes)[opts.alignTicksWithAxis-1];if(otherAxis&&otherAxis.used&&otherAxis!=axis){var niceTicks=axis.tickGenerator(axis);if(niceTicks.length>0){if(opts.min==null)axis.min=Math.min(axis.min,niceTicks[0]);if(opts.max==null&&niceTicks.length>1)axis.max=Math.max(axis.max,niceTicks[niceTicks.length-1])}axis.tickGenerator=function(axis){var ticks=[],v,i;for(i=0;i<otherAxis.ticks.length;++i){v=(otherAxis.ticks[i].v-otherAxis.min)/(otherAxis.max-otherAxis.min);v=axis.min+v*(axis.max-axis.min);ticks.push(v)}return ticks};if(!axis.mode&&opts.tickDecimals==null){var extraDec=Math.max(0,-Math.floor(Math.log(axis.delta)/Math.LN10)+1),ts=axis.tickGenerator(axis);if(!(ts.length>1&&/\..*0$/.test((ts[1]-ts[0]).toFixed(extraDec))))axis.tickDecimals=extraDec}}}}function setTicks(axis){var oticks=axis.options.ticks,ticks=[];if(oticks==null||typeof oticks=="number"&&oticks>0)ticks=axis.tickGenerator(axis);else if(oticks){if($.isFunction(oticks))ticks=oticks(axis);else ticks=oticks}var i,v;axis.ticks=[];for(i=0;i<ticks.length;++i){var label=null;var t=ticks[i];if(typeof t=="object"){v=+t[0];if(t.length>1)label=t[1]}else v=+t;if(label==null)label=axis.tickFormatter(v,axis);if(!isNaN(v))axis.ticks.push({v:v,label:label})}}function snapRangeToTicks(axis,ticks){if(axis.options.autoscaleMargin&&ticks.length>0){if(axis.options.min==null)axis.min=Math.min(axis.min,ticks[0].v);if(axis.options.max==null&&ticks.length>1)axis.max=Math.max(axis.max,ticks[ticks.length-1].v)}}function draw(){surface.clear();executeHooks(hooks.drawBackground,[ctx]);var grid=options.grid;if(grid.show&&grid.backgroundColor)drawBackground();if(grid.show&&!grid.aboveData){drawGrid()}for(var i=0;i<series.length;++i){executeHooks(hooks.drawSeries,[ctx,series[i]]);drawSeries(series[i])}executeHooks(hooks.draw,[ctx]);if(grid.show&&grid.aboveData){drawGrid()}surface.render();triggerRedrawOverlay()}function extractRange(ranges,coord){var axis,from,to,key,axes=allAxes();for(var i=0;i<axes.length;++i){axis=axes[i];if(axis.direction==coord){key=coord+axis.n+"axis";if(!ranges[key]&&axis.n==1)key=coord+"axis";if(ranges[key]){from=ranges[key].from;to=ranges[key].to;break}}}if(!ranges[key]){axis=coord=="x"?xaxes[0]:yaxes[0];from=ranges[coord+"1"];to=ranges[coord+"2"]}if(from!=null&&to!=null&&from>to){var tmp=from;from=to;to=tmp}return{from:from,to:to,axis:axis}}function drawBackground(){ctx.save();ctx.translate(plotOffset.left,plotOffset.top);ctx.fillStyle=getColorOrGradient(options.grid.backgroundColor,plotHeight,0,"rgba(255, 255, 255, 0)");ctx.fillRect(0,0,plotWidth,plotHeight);ctx.restore()}function drawGrid(){var i,axes,bw,bc;ctx.save();ctx.translate(plotOffset.left,plotOffset.top);var markings=options.grid.markings;if(markings){if($.isFunction(markings)){axes=plot.getAxes();axes.xmin=axes.xaxis.min;axes.xmax=axes.xaxis.max;axes.ymin=axes.yaxis.min;axes.ymax=axes.yaxis.max;markings=markings(axes)}for(i=0;i<markings.length;++i){var m=markings[i],xrange=extractRange(m,"x"),yrange=extractRange(m,"y");if(xrange.from==null)xrange.from=xrange.axis.min;if(xrange.to==null)xrange.to=xrange.axis.max;
-if(yrange.from==null)yrange.from=yrange.axis.min;if(yrange.to==null)yrange.to=yrange.axis.max;if(xrange.to<xrange.axis.min||xrange.from>xrange.axis.max||yrange.to<yrange.axis.min||yrange.from>yrange.axis.max)continue;xrange.from=Math.max(xrange.from,xrange.axis.min);xrange.to=Math.min(xrange.to,xrange.axis.max);yrange.from=Math.max(yrange.from,yrange.axis.min);yrange.to=Math.min(yrange.to,yrange.axis.max);var xequal=xrange.from===xrange.to,yequal=yrange.from===yrange.to;if(xequal&&yequal){continue}xrange.from=Math.floor(xrange.axis.p2c(xrange.from));xrange.to=Math.floor(xrange.axis.p2c(xrange.to));yrange.from=Math.floor(yrange.axis.p2c(yrange.from));yrange.to=Math.floor(yrange.axis.p2c(yrange.to));if(xequal||yequal){var lineWidth=m.lineWidth||options.grid.markingsLineWidth,subPixel=lineWidth%2?.5:0;ctx.beginPath();ctx.strokeStyle=m.color||options.grid.markingsColor;ctx.lineWidth=lineWidth;if(xequal){ctx.moveTo(xrange.to+subPixel,yrange.from);ctx.lineTo(xrange.to+subPixel,yrange.to)}else{ctx.moveTo(xrange.from,yrange.to+subPixel);ctx.lineTo(xrange.to,yrange.to+subPixel)}ctx.stroke()}else{ctx.fillStyle=m.color||options.grid.markingsColor;ctx.fillRect(xrange.from,yrange.to,xrange.to-xrange.from,yrange.from-yrange.to)}}}axes=allAxes();bw=options.grid.borderWidth;for(var j=0;j<axes.length;++j){var axis=axes[j],box=axis.box,t=axis.tickLength,x,y,xoff,yoff;if(!axis.show||axis.ticks.length==0)continue;ctx.lineWidth=1;if(axis.direction=="x"){x=0;if(t=="full")y=axis.position=="top"?0:plotHeight;else y=box.top-plotOffset.top+(axis.position=="top"?box.height:0)}else{y=0;if(t=="full")x=axis.position=="left"?0:plotWidth;else x=box.left-plotOffset.left+(axis.position=="left"?box.width:0)}if(!axis.innermost){ctx.strokeStyle=axis.options.color;ctx.beginPath();xoff=yoff=0;if(axis.direction=="x")xoff=plotWidth+1;else yoff=plotHeight+1;if(ctx.lineWidth==1){if(axis.direction=="x"){y=Math.floor(y)+.5}else{x=Math.floor(x)+.5}}ctx.moveTo(x,y);ctx.lineTo(x+xoff,y+yoff);ctx.stroke()}ctx.strokeStyle=axis.options.tickColor;ctx.beginPath();for(i=0;i<axis.ticks.length;++i){var v=axis.ticks[i].v;xoff=yoff=0;if(isNaN(v)||v<axis.min||v>axis.max||t=="full"&&(typeof bw=="object"&&bw[axis.position]>0||bw>0)&&(v==axis.min||v==axis.max))continue;if(axis.direction=="x"){x=axis.p2c(v);yoff=t=="full"?-plotHeight:t;if(axis.position=="top")yoff=-yoff}else{y=axis.p2c(v);xoff=t=="full"?-plotWidth:t;if(axis.position=="left")xoff=-xoff}if(ctx.lineWidth==1){if(axis.direction=="x")x=Math.floor(x)+.5;else y=Math.floor(y)+.5}ctx.moveTo(x,y);ctx.lineTo(x+xoff,y+yoff)}ctx.stroke()}if(bw){bc=options.grid.borderColor;if(typeof bw=="object"||typeof bc=="object"){if(typeof bw!=="object"){bw={top:bw,right:bw,bottom:bw,left:bw}}if(typeof bc!=="object"){bc={top:bc,right:bc,bottom:bc,left:bc}}if(bw.top>0){ctx.strokeStyle=bc.top;ctx.lineWidth=bw.top;ctx.beginPath();ctx.moveTo(0-bw.left,0-bw.top/2);ctx.lineTo(plotWidth,0-bw.top/2);ctx.stroke()}if(bw.right>0){ctx.strokeStyle=bc.right;ctx.lineWidth=bw.right;ctx.beginPath();ctx.moveTo(plotWidth+bw.right/2,0-bw.top);ctx.lineTo(plotWidth+bw.right/2,plotHeight);ctx.stroke()}if(bw.bottom>0){ctx.strokeStyle=bc.bottom;ctx.lineWidth=bw.bottom;ctx.beginPath();ctx.moveTo(plotWidth+bw.right,plotHeight+bw.bottom/2);ctx.lineTo(0,plotHeight+bw.bottom/2);ctx.stroke()}if(bw.left>0){ctx.strokeStyle=bc.left;ctx.lineWidth=bw.left;ctx.beginPath();ctx.moveTo(0-bw.left/2,plotHeight+bw.bottom);ctx.lineTo(0-bw.left/2,0);ctx.stroke()}}else{ctx.lineWidth=bw;ctx.strokeStyle=options.grid.borderColor;ctx.strokeRect(-bw/2,-bw/2,plotWidth+bw,plotHeight+bw)}}ctx.restore()}function drawAxisLabels(){$.each(allAxes(),function(_,axis){var box=axis.box,legacyStyles=axis.direction+"Axis "+axis.direction+axis.n+"Axis",layer="flot-"+axis.direction+"-axis flot-"+axis.direction+axis.n+"-axis "+legacyStyles,font=axis.options.font||"flot-tick-label tickLabel",tick,x,y,halign,valign;surface.removeText(layer);if(!axis.show||axis.ticks.length==0)return;for(var i=0;i<axis.ticks.length;++i){tick=axis.ticks[i];if(!tick.label||tick.v<axis.min||tick.v>axis.max)continue;if(axis.direction=="x"){halign="center";x=plotOffset.left+axis.p2c(tick.v);if(axis.position=="bottom"){y=box.top+box.padding}else{y=box.top+box.height-box.padding;valign="bottom"}}else{valign="middle";y=plotOffset.top+axis.p2c(tick.v);if(axis.position=="left"){x=box.left+box.width-box.padding;halign="right"}else{x=box.left+box.padding}}surface.addText(layer,x,y,tick.label,font,null,null,halign,valign)}})}function drawSeries(series){if(series.lines.show)drawSeriesLines(series);if(series.bars.show)drawSeriesBars(series);if(series.points.show)drawSeriesPoints(series)}function drawSeriesLines(series){function plotLine(datapoints,xoffset,yoffset,axisx,axisy){var points=datapoints.points,ps=datapoints.pointsize,prevx=null,prevy=null;ctx.beginPath();for(var i=ps;i<points.length;i+=ps){var x1=points[i-ps],y1=points[i-ps+1],x2=points[i],y2=points[i+1];if(x1==null||x2==null)continue;if(y1<=y2&&y1<axisy.min){if(y2<axisy.min)continue;x1=(axisy.min-y1)/(y2-y1)*(x2-x1)+x1;y1=axisy.min}else if(y2<=y1&&y2<axisy.min){if(y1<axisy.min)continue;x2=(axisy.min-y1)/(y2-y1)*(x2-x1)+x1;y2=axisy.min}if(y1>=y2&&y1>axisy.max){if(y2>axisy.max)continue;x1=(axisy.max-y1)/(y2-y1)*(x2-x1)+x1;y1=axisy.max}else if(y2>=y1&&y2>axisy.max){if(y1>axisy.max)continue;x2=(axisy.max-y1)/(y2-y1)*(x2-x1)+x1;y2=axisy.max}if(x1<=x2&&x1<axisx.min){if(x2<axisx.min)continue;y1=(axisx.min-x1)/(x2-x1)*(y2-y1)+y1;x1=axisx.min}else if(x2<=x1&&x2<axisx.min){if(x1<axisx.min)continue;y2=(axisx.min-x1)/(x2-x1)*(y2-y1)+y1;x2=axisx.min}if(x1>=x2&&x1>axisx.max){if(x2>axisx.max)continue;y1=(axisx.max-x1)/(x2-x1)*(y2-y1)+y1;x1=axisx.max}else if(x2>=x1&&x2>axisx.max){if(x1>axisx.max)continue;y2=(axisx.max-x1)/(x2-x1)*(y2-y1)+y1;x2=axisx.max}if(x1!=prevx||y1!=prevy)ctx.moveTo(axisx.p2c(x1)+xoffset,axisy.p2c(y1)+yoffset);prevx=x2;prevy=y2;ctx.lineTo(axisx.p2c(x2)+xoffset,axisy.p2c(y2)+yoffset)}ctx.stroke()}function plotLineArea(datapoints,axisx,axisy){var points=datapoints.points,ps=datapoints.pointsize,bottom=Math.min(Math.max(0,axisy.min),axisy.max),i=0,top,areaOpen=false,ypos=1,segmentStart=0,segmentEnd=0;while(true){if(ps>0&&i>points.length+ps)break;i+=ps;var x1=points[i-ps],y1=points[i-ps+ypos],x2=points[i],y2=points[i+ypos];if(areaOpen){if(ps>0&&x1!=null&&x2==null){segmentEnd=i;ps=-ps;ypos=2;continue}if(ps<0&&i==segmentStart+ps){ctx.fill();areaOpen=false;ps=-ps;ypos=1;i=segmentStart=segmentEnd+ps;continue}}if(x1==null||x2==null)continue;if(x1<=x2&&x1<axisx.min){if(x2<axisx.min)continue;y1=(axisx.min-x1)/(x2-x1)*(y2-y1)+y1;x1=axisx.min}else if(x2<=x1&&x2<axisx.min){if(x1<axisx.min)continue;y2=(axisx.min-x1)/(x2-x1)*(y2-y1)+y1;x2=axisx.min}if(x1>=x2&&x1>axisx.max){if(x2>axisx.max)continue;y1=(axisx.max-x1)/(x2-x1)*(y2-y1)+y1;x1=axisx.max}else if(x2>=x1&&x2>axisx.max){if(x1>axisx.max)continue;y2=(axisx.max-x1)/(x2-x1)*(y2-y1)+y1;x2=axisx.max}if(!areaOpen){ctx.beginPath();ctx.moveTo(axisx.p2c(x1),axisy.p2c(bottom));areaOpen=true}if(y1>=axisy.max&&y2>=axisy.max){ctx.lineTo(axisx.p2c(x1),axisy.p2c(axisy.max));ctx.lineTo(axisx.p2c(x2),axisy.p2c(axisy.max));continue}else if(y1<=axisy.min&&y2<=axisy.min){ctx.lineTo(axisx.p2c(x1),axisy.p2c(axisy.min));ctx.lineTo(axisx.p2c(x2),axisy.p2c(axisy.min));continue}var x1old=x1,x2old=x2;if(y1<=y2&&y1<axisy.min&&y2>=axisy.min){x1=(axisy.min-y1)/(y2-y1)*(x2-x1)+x1;y1=axisy.min}else if(y2<=y1&&y2<axisy.min&&y1>=axisy.min){x2=(axisy.min-y1)/(y2-y1)*(x2-x1)+x1;y2=axisy.min}if(y1>=y2&&y1>axisy.max&&y2<=axisy.max){x1=(axisy.max-y1)/(y2-y1)*(x2-x1)+x1;y1=axisy.max}else if(y2>=y1&&y2>axisy.max&&y1<=axisy.max){x2=(axisy.max-y1)/(y2-y1)*(x2-x1)+x1;y2=axisy.max}if(x1!=x1old){ctx.lineTo(axisx.p2c(x1old),axisy.p2c(y1))}ctx.lineTo(axisx.p2c(x1),axisy.p2c(y1));ctx.lineTo(axisx.p2c(x2),axisy.p2c(y2));if(x2!=x2old){ctx.lineTo(axisx.p2c(x2),axisy.p2c(y2));ctx.lineTo(axisx.p2c(x2old),axisy.p2c(y2))}}}ctx.save();ctx.translate(plotOffset.left,plotOffset.top);ctx.lineJoin="round";var lw=series.lines.lineWidth,sw=series.shadowSize;if(lw>0&&sw>0){ctx.lineWidth=sw;ctx.strokeStyle="rgba(0,0,0,0.1)";var angle=Math.PI/18;plotLine(series.datapoints,Math.sin(angle)*(lw/2+sw/2),Math.cos(angle)*(lw/2+sw/2),series.xaxis,series.yaxis);ctx.lineWidth=sw/2;plotLine(series.datapoints,Math.sin(angle)*(lw/2+sw/4),Math.cos(angle)*(lw/2+sw/4),series.xaxis,series.yaxis)}ctx.lineWidth=lw;ctx.strokeStyle=series.color;var fillStyle=getFillStyle(series.lines,series.color,0,plotHeight);if(fillStyle){ctx.fillStyle=fillStyle;plotLineArea(series.datapoints,series.xaxis,series.yaxis)}if(lw>0)plotLine(series.datapoints,0,0,series.xaxis,series.yaxis);ctx.restore()}function drawSeriesPoints(series){function plotPoints(datapoints,radius,fillStyle,offset,shadow,axisx,axisy,symbol){var points=datapoints.points,ps=datapoints.pointsize;for(var i=0;i<points.length;i+=ps){var x=points[i],y=points[i+1];if(x==null||x<axisx.min||x>axisx.max||y<axisy.min||y>axisy.max)continue;ctx.beginPath();x=axisx.p2c(x);y=axisy.p2c(y)+offset;if(symbol=="circle")ctx.arc(x,y,radius,0,shadow?Math.PI:Math.PI*2,false);else symbol(ctx,x,y,radius,shadow);ctx.closePath();if(fillStyle){ctx.fillStyle=fillStyle;ctx.fill()}ctx.stroke()}}ctx.save();ctx.translate(plotOffset.left,plotOffset.top);var lw=series.points.lineWidth,sw=series.shadowSize,radius=series.points.radius,symbol=series.points.symbol;if(lw==0)lw=1e-4;if(lw>0&&sw>0){var w=sw/2;ctx.lineWidth=w;ctx.strokeStyle="rgba(0,0,0,0.1)";plotPoints(series.datapoints,radius,null,w+w/2,true,series.xaxis,series.yaxis,symbol);ctx.strokeStyle="rgba(0,0,0,0.2)";plotPoints(series.datapoints,radius,null,w/2,true,series.xaxis,series.yaxis,symbol)}ctx.lineWidth=lw;ctx.strokeStyle=series.color;plotPoints(series.datapoints,radius,getFillStyle(series.points,series.color),0,false,series.xaxis,series.yaxis,symbol);ctx.restore()}function drawBar(x,y,b,barLeft,barRight,fillStyleCallback,axisx,axisy,c,horizontal,lineWidth){var left,right,bottom,top,drawLeft,drawRight,drawTop,drawBottom,tmp;if(horizontal){drawBottom=drawRight=drawTop=true;drawLeft=false;left=b;right=x;top=y+barLeft;bottom=y+barRight;if(right<left){tmp=right;right=left;left=tmp;drawLeft=true;drawRight=false}}else{drawLeft=drawRight=drawTop=true;drawBottom=false;left=x+barLeft;right=x+barRight;bottom=b;top=y;if(top<bottom){tmp=top;top=bottom;bottom=tmp;drawBottom=true;drawTop=false}}if(right<axisx.min||left>axisx.max||top<axisy.min||bottom>axisy.max)return;if(left<axisx.min){left=axisx.min;drawLeft=false}if(right>axisx.max){right=axisx.max;drawRight=false}if(bottom<axisy.min){bottom=axisy.min;drawBottom=false}if(top>axisy.max){top=axisy.max;drawTop=false}left=axisx.p2c(left);bottom=axisy.p2c(bottom);right=axisx.p2c(right);top=axisy.p2c(top);if(fillStyleCallback){c.fillStyle=fillStyleCallback(bottom,top);c.fillRect(left,top,right-left,bottom-top)}if(lineWidth>0&&(drawLeft||drawRight||drawTop||drawBottom)){c.beginPath();c.moveTo(left,bottom);if(drawLeft)c.lineTo(left,top);else c.moveTo(left,top);if(drawTop)c.lineTo(right,top);else c.moveTo(right,top);if(drawRight)c.lineTo(right,bottom);else c.moveTo(right,bottom);if(drawBottom)c.lineTo(left,bottom);else c.moveTo(left,bottom);c.stroke()}}function drawSeriesBars(series){function plotBars(datapoints,barLeft,barRight,fillStyleCallback,axisx,axisy){var points=datapoints.points,ps=datapoints.pointsize;for(var i=0;i<points.length;i+=ps){if(points[i]==null)continue;drawBar(points[i],points[i+1],points[i+2],barLeft,barRight,fillStyleCallback,axisx,axisy,ctx,series.bars.horizontal,series.bars.lineWidth)}}ctx.save();ctx.translate(plotOffset.left,plotOffset.top);ctx.lineWidth=series.bars.lineWidth;ctx.strokeStyle=series.color;var barLeft;switch(series.bars.align){case"left":barLeft=0;break;case"right":barLeft=-series.bars.barWidth;break;default:barLeft=-series.bars.barWidth/2}var fillStyleCallback=series.bars.fill?function(bottom,top){return getFillStyle(series.bars,series.color,bottom,top)}:null;plotBars(series.datapoints,barLeft,barLeft+series.bars.barWidth,fillStyleCallback,series.xaxis,series.yaxis);ctx.restore()}function getFillStyle(filloptions,seriesColor,bottom,top){var fill=filloptions.fill;if(!fill)return null;if(filloptions.fillColor)return getColorOrGradient(filloptions.fillColor,bottom,top,seriesColor);var c=$.color.parse(seriesColor);c.a=typeof fill=="number"?fill:.4;c.normalize();return c.toString()}function insertLegend(){if(options.legend.container!=null){$(options.legend.container).html("")}else{placeholder.find(".legend").remove()}if(!options.legend.show){return}var fragments=[],entries=[],rowStarted=false,lf=options.legend.labelFormatter,s,label;for(var i=0;i<series.length;++i){s=series[i];if(s.label){label=lf?lf(s.label,s):s.label;if(label){entries.push({label:label,color:s.color})}}}if(options.legend.sorted){if($.isFunction(options.legend.sorted)){entries.sort(options.legend.sorted)}else if(options.legend.sorted=="reverse"){entries.reverse()}else{var ascending=options.legend.sorted!="descending";entries.sort(function(a,b){return a.label==b.label?0:a.label<b.label!=ascending?1:-1})}}for(var i=0;i<entries.length;++i){var entry=entries[i];if(i%options.legend.noColumns==0){if(rowStarted)fragments.push("</tr>");fragments.push("<tr>");rowStarted=true}fragments.push('<td class="legendColorBox"><div style="border:1px solid '+options.legend.labelBoxBorderColor+';padding:1px"><div style="width:4px;height:0;border:5px solid '+entry.color+';overflow:hidden"></div></div></td>'+'<td class="legendLabel">'+entry.label+"</td>")}if(rowStarted)fragments.push("</tr>");if(fragments.length==0)return;var table='<table style="font-size:smaller;color:'+options.grid.color+'">'+fragments.join("")+"</table>";if(options.legend.container!=null)$(options.legend.container).html(table);else{var 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+ 
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+ 
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i,axisOptions,axisCount,fontSize=placeholder.css("font-size"),fontSizeDefault=fontSize?+fontSize.replace("px",""):13,fontDefaults={style:placeholder.css("font-style"),size:Math.round(.8*fontSizeDefault),variant:placeholder.css("font-variant"),weight:placeholder.css("font-weight"),family:placeholder.css("font-family")};axisCount=options.xaxes.length||1;for(i=0;i<axisCount;++i){axisOptions=options.xaxes[i];if(axisOptions&&!axisOptions.tickColor){axisOptions.tickColor=axisOptions.color}axisOptions=$.extend(true,{},options.xaxis,axisOptions);options.xaxes[i]=axisOptions;if(axisOptions.font){axisOptions.font=$.extend({},fontDefaults,axisOptions.font);if(!axisOptions.font.color){axisOptions.font.color=axisOptions.color}if(!axisOptions.font.lineHeight){axisOptions.font.lineHeight=Math.round(axisOptions.font.size*1.15)}}}axisCount=options.yaxes.length||1;for(i=0;i<axisCount;++i){axisOptions=options.yaxes[i];if(axisOptions&&!axisOptions.tickColor){axisOptions.tickColor=axisOptions.color}axisOptions=$.extend(true,{},options.yaxis,axisOptions);options.yaxes[i]=axisOptions;if(axisOptions.font){axisOptions.font=$.extend({},fontDefaults,axisOptions.font);if(!axisOptions.font.color){axisOptions.font.color=axisOptions.color}if(!axisOptions.font.lineHeight){axisOptions.font.lineHeight=Math.round(axisOptions.font.size*1.15)}}}if(options.xaxis.noTicks&&options.xaxis.ticks==null)options.xaxis.ticks=options.xaxis.noTicks;if(options.yaxis.noTicks&&options.yaxis.ticks==null)options.yaxis.ticks=options.yaxis.noTicks;if(options.x2axis){options.xaxes[1]=$.extend(true,{},options.xaxis,options.x2axis);options.xaxes[1].position="top";if(options.x2axis.min==null){options.xaxes[1].min=null}if(options.x2axis.max==null){options.xaxes[1].max=null}}if(options.y2axis){options.yaxes[1]=$.extend(true,{},options.yaxis,options.y2axis);options.yaxes[1].position="right";if(options.y2axis.min==null){options.yaxes[1].min=null}if(options.y2axis.max==null){options.yaxes[1].max=null}}if(options.grid.coloredAreas)options.grid.markings=options.grid.coloredAreas;if(options.grid.coloredAreasColor)options.grid.markingsColor=options.grid.coloredAreasColor;if(options.lines)$.extend(true,options.series.lines,options.lines);if(options.points)$.extend(true,options.series.points,options.points);if(options.bars)$.extend(true,options.series.bars,options.bars);if(options.shadowSize!=null)options.series.shadowSize=options.shadowSize;if(options.highlightColor!=null)options.series.highlightColor=options.highlightColor;for(i=0;i<options.xaxes.length;++i)getOrCreateAxis(xaxes,i+1).options=options.xaxes[i];for(i=0;i<options.yaxes.length;++i)getOrCreateAxis(yaxes,i+1).options=options.yaxes[i];for(var n in hooks)if(options.hooks[n]&&options.hooks[n].length)hooks[n]=hooks[n].concat(options.hooks[n]);executeHooks(hooks.processOptions,[options])}function setData(d){series=parseData(d);fillInSeriesOptions();processData()}function parseData(d){var res=[];for(var i=0;i<d.length;++i){var s=$.extend(true,{},options.series);if(d[i].data!=null){s.data=d[i].data;delete d[i].data;$.extend(true,s,d[i]);d[i].data=s.data}else s.data=d[i];res.push(s)}return res}function axisNumber(obj,coord){var a=obj[coord+"axis"];if(typeof a=="object")a=a.n;if(typeof a!="number")a=1;return a}function allAxes(){return $.grep(xaxes.concat(yaxes),function(a){return a})}function canvasToAxisCoords(pos){var res={},i,axis;for(i=0;i<xaxes.length;++i){axis=xaxes[i];if(axis&&axis.used)res["x"+axis.n]=axis.c2p(pos.left)}for(i=0;i<yaxes.length;++i){axis=yaxes[i];if(axis&&axis.used)res["y"+axis.n]=axis.c2p(pos.top)}if(res.x1!==undefined)res.x=res.x1;if(res.y1!==undefined)res.y=res.y1;return res}function axisToCanvasCoords(pos){var res={},i,axis,key;for(i=0;i<xaxes.length;++i){axis=xaxes[i];if(axis&&axis.used){key="x"+axis.n;if(pos[key]==null&&axis.n==1)key="x";if(pos[key]!=null){res.left=axis.p2c(pos[key]);break}}}for(i=0;i<yaxes.length;++i){axis=yaxes[i];if(axis&&axis.used){key="y"+axis.n;if(pos[key]==null&&axis.n==1)key="y";if(pos[key]!=null){res.top=axis.p2c(pos[key]);break}}}return res}function getOrCreateAxis(axes,number){if(!axes[number-1])axes[number-1]={n:number,direction:axes==xaxes?"x":"y",options:$.extend(true,{},axes==xaxes?options.xaxis:options.yaxis)};return axes[number-1]}function fillInSeriesOptions(){var neededColors=series.length,maxIndex=-1,i;for(i=0;i<series.length;++i){var sc=series[i].color;if(sc!=null){neededColors--;if(typeof sc=="number"&&sc>maxIndex){maxIndex=sc}}}if(neededColors<=maxIndex){neededColors=maxIndex+1}var c,colors=[],colorPool=options.colors,colorPoolSize=colorPool.length,variation=0;for(i=0;i<neededColors;i++){c=$.color.parse(colorPool[i%colorPoolSize]||"#666");if(i%colorPoolSize==0&&i){if(variation>=0){if(variation<.5){variation=-variation-.2}else variation=0}else variation=-variation}colors[i]=c.scale("rgb",1+variation)}var colori=0,s;for(i=0;i<series.length;++i){s=series[i];if(s.color==null){s.color=colors[colori].toString();++colori}else if(typeof s.color=="number")s.color=colors[s.color].toString();if(s.lines.show==null){var v,show=true;for(v in s)if(s[v]&&s[v].show){show=false;break}if(show)s.lines.show=true}if(s.lines.zero==null){s.lines.zero=!!s.lines.fill}s.xaxis=getOrCreateAxis(xaxes,axisNumber(s,"x"));s.yaxis=getOrCreateAxis(yaxes,axisNumber(s,"y"))}}function processData(){var topSentry=Number.POSITIVE_INFINITY,bottomSentry=Number.NEGATIVE_INFINITY,fakeInfinity=Number.MAX_VALUE,i,j,k,m,length,s,points,ps,x,y,axis,val,f,p,data,format;function updateAxis(axis,min,max){if(min<axis.datamin&&min!=-fakeInfinity)axis.datamin=min;if(max>axis.datamax&&max!=fakeInfinity)axis.datamax=max}$.each(allAxes(),function(_,axis){axis.datamin=topSentry;axis.datamax=bottomSentry;axis.used=false});for(i=0;i<series.length;++i){s=series[i];s.datapoints={points:[]};executeHooks(hooks.processRawData,[s,s.data,s.datapoints])}for(i=0;i<series.length;++i){s=series[i];data=s.data;format=s.datapoints.format;if(!format){format=[];format.push({x:true,number:true,required:true});format.push({y:true,number:true,required:true});if(s.bars.show||s.lines.show&&s.lines.fill){var autoscale=!!(s.bars.show&&s.bars.zero||s.lines.show&&s.lines.zero);format.push({y:true,number:true,required:false,defaultValue:0,autoscale:autoscale});if(s.bars.horizontal){delete format[format.length-1].y;format[format.length-1].x=true}}s.datapoints.format=format}if(s.datapoints.pointsize!=null)continue;s.datapoints.pointsize=format.length;ps=s.datapoints.pointsize;points=s.datapoints.points;var insertSteps=s.lines.show&&s.lines.steps;s.xaxis.used=s.yaxis.used=true;for(j=k=0;j<data.length;++j,k+=ps){p=data[j];var nullify=p==null;if(!nullify){for(m=0;m<ps;++m){val=p[m];f=format[m];if(f){if(f.number&&val!=null){val=+val;if(isNaN(val))val=null;else if(val==Infinity)val=fakeInfinity;else if(val==-Infinity)val=-fakeInfinity}if(val==null){if(f.required)nullify=true;if(f.defaultValue!=null)val=f.defaultValue}}points[k+m]=val}}if(nullify){for(m=0;m<ps;++m){val=points[k+m];if(val!=null){f=format[m];if(f.autoscale!==false){if(f.x){updateAxis(s.xaxis,val,val)}if(f.y){updateAxis(s.yaxis,val,val)}}}points[k+m]=null}}else{if(insertSteps&&k>0&&points[k-ps]!=null&&points[k-ps]!=points[k]&&points[k-ps+1]!=points[k+1]){for(m=0;m<ps;++m)points[k+ps+m]=points[k+m];points[k+1]=points[k-ps+1];k+=ps}}}}for(i=0;i<series.length;++i){s=series[i];executeHooks(hooks.processDatapoints,[s,s.datapoints])}for(i=0;i<series.length;++i){s=series[i];points=s.datapoints.points;ps=s.datapoints.pointsize;format=s.datapoints.format;var xmin=topSentry,ymin=topSentry,xmax=bottomSentry,ymax=bottomSentry;for(j=0;j<points.length;j+=ps){if(points[j]==null)continue;for(m=0;m<ps;++m){val=points[j+m];f=format[m];if(!f||f.autoscale===false||val==fakeInfinity||val==-fakeInfinity)continue;if(f.x){if(val<xmin)xmin=val;if(val>xmax)xmax=val}if(f.y){if(val<ymin)ymin=val;if(val>ymax)ymax=val}}}if(s.bars.show){var delta;switch(s.bars.align){case"left":delta=0;break;case"right":delta=-s.bars.barWidth;break;default:delta=-s.bars.barWidth/2}if(s.bars.horizontal){ymin+=delta;ymax+=delta+s.bars.barWidth}else{xmin+=delta;xmax+=delta+s.bars.barWidth}}updateAxis(s.xaxis,xmin,xmax);updateAxis(s.yaxis,ymin,ymax)}$.each(allAxes(),function(_,axis){if(axis.datamin==topSentry)axis.datamin=null;if(axis.datamax==bottomSentry)axis.datamax=null})}function setupCanvases(){placeholder.css("padding",0).children().filter(function(){return!$(this).hasClass("flot-overlay")&&!$(this).hasClass("flot-base")}).remove();if(placeholder.css("position")=="static")placeholder.css("position","relative");surface=new Canvas("flot-base",placeholder);overlay=new Canvas("flot-overlay",placeholder);ctx=surface.context;octx=overlay.context;eventHolder=$(overlay.element).unbind();var existing=placeholder.data("plot");if(existing){existing.shutdown();overlay.clear()}placeholder.data("plot",plot)}function bindEvents(){if(options.grid.hoverable){eventHolder.mousemove(onMouseMove);eventHolder.bind("mouseleave",onMouseLeave)}if(options.grid.clickable)eventHolder.click(onClick);executeHooks(hooks.bindEvents,[eventHolder])}function shutdown(){if(redrawTimeout)clearTimeout(redrawTimeout);eventHolder.unbind("mousemove",onMouseMove);eventHolder.unbind("mouseleave",onMouseLeave);eventHolder.unbind("click",onClick);executeHooks(hooks.shutdown,[eventHolder])}function setTransformationHelpers(axis){function identity(x){return x}var s,m,t=axis.options.transform||identity,it=axis.options.inverseTransform;if(axis.direction=="x"){s=axis.scale=plotWidth/Math.abs(t(axis.max)-t(axis.min));m=Math.min(t(axis.max),t(axis.min))}else{s=axis.scale=plotHeight/Math.abs(t(axis.max)-t(axis.min));s=-s;m=Math.max(t(axis.max),t(axis.min))}if(t==identity)axis.p2c=function(p){return(p-m)*s};else axis.p2c=function(p){return(t(p)-m)*s};if(!it)axis.c2p=function(c){return m+c/s};else axis.c2p=function(c){return it(m+c/s)}}function measureTickLabels(axis){var opts=axis.options,ticks=axis.ticks||[],labelWidth=opts.labelWidth||0,labelHeight=opts.labelHeight||0,maxWidth=labelWidth||(axis.direction=="x"?Math.floor(surface.width/(ticks.length||1)):null),legacyStyles=axis.direction+"Axis "+axis.direction+axis.n+"Axis",layer="flot-"+axis.direction+"-axis flot-"+axis.direction+axis.n+"-axis "+legacyStyles,font=opts.font||"flot-tick-label tickLabel";for(var i=0;i<ticks.length;++i){var t=ticks[i];if(!t.label)continue;var info=surface.getTextInfo(layer,t.label,font,null,maxWidth);labelWidth=Math.max(labelWidth,info.width);labelHeight=Math.max(labelHeight,info.height)}axis.labelWidth=opts.labelWidth||labelWidth;axis.labelHeight=opts.labelHeight||labelHeight}function allocateAxisBoxFirstPhase(axis){var lw=axis.labelWidth,lh=axis.labelHeight,pos=axis.options.position,isXAxis=axis.direction==="x",tickLength=axis.options.tickLength,axisMargin=options.grid.axisMargin,padding=options.grid.labelMargin,innermost=true,outermost=true,first=true,found=false;$.each(isXAxis?xaxes:yaxes,function(i,a){if(a&&(a.show||a.reserveSpace)){if(a===axis){found=true}else if(a.options.position===pos){if(found){outermost=false}else{innermost=false}}if(!found){first=false}}});if(outermost){axisMargin=0}if(tickLength==null){tickLength=first?"full":5}if(!isNaN(+tickLength))padding+=+tickLength;if(isXAxis){lh+=padding;if(pos=="bottom"){plotOffset.bottom+=lh+axisMargin;axis.box={top:surface.height-plotOffset.bottom,height:lh}}else{axis.box={top:plotOffset.top+axisMargin,height:lh};plotOffset.top+=lh+axisMargin}}else{lw+=padding;if(pos=="left"){axis.box={left:plotOffset.left+axisMargin,width:lw};plotOffset.left+=lw+axisMargin}else{plotOffset.right+=lw+axisMargin;axis.box={left:surface.width-plotOffset.right,width:lw}}}axis.position=pos;axis.tickLength=tickLength;axis.box.padding=padding;axis.innermost=innermost}function allocateAxisBoxSecondPhase(axis){if(axis.direction=="x"){axis.box.left=plotOffset.left-axis.labelWidth/2;axis.box.width=surface.width-plotOffset.left-plotOffset.right+axis.labelWidth}else{axis.box.top=plotOffset.top-axis.labelHeight/2;axis.box.height=surface.height-plotOffset.bottom-plotOffset.top+axis.labelHeight}}function adjustLayoutForThingsStickingOut(){var minMargin=options.grid.minBorderMargin,axis,i;if(minMargin==null){minMargin=0;for(i=0;i<series.length;++i)minMargin=Math.max(minMargin,2*(series[i].points.radius+series[i].points.lineWidth/2))}var margins={left:minMargin,right:minMargin,top:minMargin,bottom:minMargin};$.each(allAxes(),function(_,axis){if(axis.reserveSpace&&axis.ticks&&axis.ticks.length){if(axis.direction==="x"){margins.left=Math.max(margins.left,axis.labelWidth/2);margins.right=Math.max(margins.right,axis.labelWidth/2)}else{margins.bottom=Math.max(margins.bottom,axis.labelHeight/2);margins.top=Math.max(margins.top,axis.labelHeight/2)}}});plotOffset.left=Math.ceil(Math.max(margins.left,plotOffset.left));plotOffset.right=Math.ceil(Math.max(margins.right,plotOffset.right));plotOffset.top=Math.ceil(Math.max(margins.top,plotOffset.top));plotOffset.bottom=Math.ceil(Math.max(margins.bottom,plotOffset.bottom))}function setupGrid(){var i,axes=allAxes(),showGrid=options.grid.show;for(var a in plotOffset){var margin=options.grid.margin||0;plotOffset[a]=typeof margin=="number"?margin:margin[a]||0}executeHooks(hooks.processOffset,[plotOffset]);for(var a in plotOffset){if(typeof options.grid.borderWidth=="object"){plotOffset[a]+=showGrid?options.grid.borderWidth[a]:0}else{plotOffset[a]+=showGrid?options.grid.borderWidth:0}}$.each(axes,function(_,axis){var axisOpts=axis.options;axis.show=axisOpts.show==null?axis.used:axisOpts.show;axis.reserveSpace=axisOpts.reserveSpace==null?axis.show:axisOpts.reserveSpace;setRange(axis)});if(showGrid){var allocatedAxes=$.grep(axes,function(axis){return axis.show||axis.reserveSpace});$.each(allocatedAxes,function(_,axis){setupTickGeneration(axis);setTicks(axis);snapRangeToTicks(axis,axis.ticks);measureTickLabels(axis)});for(i=allocatedAxes.length-1;i>=0;--i)allocateAxisBoxFirstPhase(allocatedAxes[i]);adjustLayoutForThingsStickingOut();$.each(allocatedAxes,function(_,axis){allocateAxisBoxSecondPhase(axis)})}plotWidth=surface.width-plotOffset.left-plotOffset.right;plotHeight=surface.height-plotOffset.bottom-plotOffset.top;$.each(axes,function(_,axis){setTransformationHelpers(axis)});if(showGrid){drawAxisLabels()}insertLegend()}function setRange(axis){var opts=axis.options,min=+(opts.min!=null?opts.min:axis.datamin),max=+(opts.max!=null?opts.max:axis.datamax),delta=max-min;if(delta==0){var widen=max==0?1:.01;if(opts.min==null)min-=widen;if(opts.max==null||opts.min!=null)max+=widen}else{var margin=opts.autoscaleMargin;if(margin!=null){if(opts.min==null){min-=delta*margin;if(min<0&&axis.datamin!=null&&axis.datamin>=0)min=0}if(opts.max==null){max+=delta*margin;if(max>0&&axis.datamax!=null&&axis.datamax<=0)max=0}}}axis.min=min;axis.max=max}function setupTickGeneration(axis){var opts=axis.options;var noTicks;if(typeof opts.ticks=="number"&&opts.ticks>0)noTicks=opts.ticks;else noTicks=.3*Math.sqrt(axis.direction=="x"?surface.width:surface.height);var delta=(axis.max-axis.min)/noTicks,dec=-Math.floor(Math.log(delta)/Math.LN10),maxDec=opts.tickDecimals;if(maxDec!=null&&dec>maxDec){dec=maxDec}var magn=Math.pow(10,-dec),norm=delta/magn,size;if(norm<1.5){size=1}else if(norm<3){size=2;if(norm>2.25&&(maxDec==null||dec+1<=maxDec)){size=2.5;++dec}}else if(norm<7.5){size=5}else{size=10}size*=magn;if(opts.minTickSize!=null&&size<opts.minTickSize){size=opts.minTickSize}axis.delta=delta;axis.tickDecimals=Math.max(0,maxDec!=null?maxDec:dec);axis.tickSize=opts.tickSize||size;if(opts.mode=="time"&&!axis.tickGenerator){throw new Error("Time mode requires the flot.time plugin.")}if(!axis.tickGenerator){axis.tickGenerator=function(axis){var ticks=[],start=floorInBase(axis.min,axis.tickSize),i=0,v=Number.NaN,prev;do{prev=v;v=start+i*axis.tickSize;ticks.push(v);++i}while(v<axis.max&&v!=prev);return ticks};axis.tickFormatter=function(value,axis){var factor=axis.tickDecimals?Math.pow(10,axis.tickDecimals):1;var formatted=""+Math.round(value*factor)/factor;if(axis.tickDecimals!=null){var decimal=formatted.indexOf(".");var precision=decimal==-1?0:formatted.length-decimal-1;if(precision<axis.tickDecimals){return(precision?formatted:formatted+".")+(""+factor).substr(1,axis.tickDecimals-precision)}}return formatted}}if($.isFunction(opts.tickFormatter))axis.tickFormatter=function(v,axis){return""+opts.tickFormatter(v,axis)};if(opts.alignTicksWithAxis!=null){var otherAxis=(axis.direction=="x"?xaxes:yaxes)[opts.alignTicksWithAxis-1];if(otherAxis&&otherAxis.used&&otherAxis!=axis){var niceTicks=axis.tickGenerator(axis);if(niceTicks.length>0){if(opts.min==null)axis.min=Math.min(axis.min,niceTicks[0]);if(opts.max==null&&niceTicks.length>1)axis.max=Math.max(axis.max,niceTicks[niceTicks.length-1])}axis.tickGenerator=function(axis){var ticks=[],v,i;for(i=0;i<otherAxis.ticks.length;++i){v=(otherAxis.ticks[i].v-otherAxis.min)/(otherAxis.max-otherAxis.min);v=axis.min+v*(axis.max-axis.min);ticks.push(v)}return ticks};if(!axis.mode&&opts.tickDecimals==null){var extraDec=Math.max(0,-Math.floor(Math.log(axis.delta)/Math.LN10)+1),ts=axis.tickGenerator(axis);if(!(ts.length>1&&/\..*0$/.test((ts[1]-ts[0]).toFixed(extraDec))))axis.tickDecimals=extraDec}}}}function setTicks(axis){var oticks=axis.options.ticks,ticks=[];if(oticks==null||typeof oticks=="number"&&oticks>0)ticks=axis.tickGenerator(axis);else if(oticks){if($.isFunction(oticks))ticks=oticks(axis);else ticks=oticks}var i,v;axis.ticks=[];for(i=0;i<ticks.length;++i){var label=null;var t=ticks[i];if(typeof t=="object"){v=+t[0];if(t.length>1)label=t[1]}else v=+t;if(label==null)label=axis.tickFormatter(v,axis);if(!isNaN(v))axis.ticks.push({v:v,label:label})}}function snapRangeToTicks(axis,ticks){if(axis.options.autoscaleMargin&&ticks.length>0){if(axis.options.min==null)axis.min=Math.min(axis.min,ticks[0].v);if(axis.options.max==null&&ticks.length>1)axis.max=Math.max(axis.max,ticks[ticks.length-1].v)}}function draw(){surface.clear();executeHooks(hooks.drawBackground,[ctx]);var grid=options.grid;if(grid.show&&grid.backgroundColor)drawBackground();if(grid.show&&!grid.aboveData){drawGrid()}for(var i=0;i<series.length;++i){executeHooks(hooks.drawSeries,[ctx,series[i]]);drawSeries(series[i])}executeHooks(hooks.draw,[ctx]);if(grid.show&&grid.aboveData){drawGrid()}surface.render();triggerRedrawOverlay()}function extractRange(ranges,coord){var axis,from,to,key,axes=allAxes();for(var i=0;i<axes.length;++i){axis=axes[i];if(axis.direction==coord){key=coord+axis.n+"axis";if(!ranges[key]&&axis.n==1)key=coord+"axis";if(ranges[key]){from=ranges[key].from;to=ranges[key].to;break}}}if(!ranges[key]){axis=coord=="x"?xaxes[0]:yaxes[0];from=ranges[coord+"1"];to=ranges[coord+"2"]}if(from!=null&&to!=null&&from>to){var tmp=from;from=to;to=tmp}return{from:from,to:to,axis:axis}}function drawBackground(){ctx.save();ctx.translate(plotOffset.left,plotOffset.top);ctx.fillStyle=getColorOrGradient(options.grid.backgroundColor,plotHeight,0,"rgba(255, 255, 255, 0)");ctx.fillRect(0,0,plotWidth,plotHeight);ctx.restore()}function drawGrid(){var i,axes,bw,bc;ctx.save();ctx.translate(plotOffset.left,plotOffset.top);var markings=options.grid.markings;if(markings){if($.isFunction(markings)){axes=plot.getAxes();axes.xmin=axes.xaxis.min;axes.xmax=axes.xaxis.max;axes.ymin=axes.yaxis.min;axes.ymax=axes.yaxis.max;markings=markings(axes)}for(i=0;i<markings.length;++i){var m=markings[i],xrange=extractRange(m,"x"),yrange=extractRange(m,"y");if(xrange.from==null)xrange.from=xrange.axis.min;if(xrange.to==null)xrange.to=xrange.axis.max; 
+if(yrange.from==null)yrange.from=yrange.axis.min;if(yrange.to==null)yrange.to=yrange.axis.max;if(xrange.to<xrange.axis.min||xrange.from>xrange.axis.max||yrange.to<yrange.axis.min||yrange.from>yrange.axis.max)continue;xrange.from=Math.max(xrange.from,xrange.axis.min);xrange.to=Math.min(xrange.to,xrange.axis.max);yrange.from=Math.max(yrange.from,yrange.axis.min);yrange.to=Math.min(yrange.to,yrange.axis.max);var xequal=xrange.from===xrange.to,yequal=yrange.from===yrange.to;if(xequal&&yequal){continue}xrange.from=Math.floor(xrange.axis.p2c(xrange.from));xrange.to=Math.floor(xrange.axis.p2c(xrange.to));yrange.from=Math.floor(yrange.axis.p2c(yrange.from));yrange.to=Math.floor(yrange.axis.p2c(yrange.to));if(xequal||yequal){var lineWidth=m.lineWidth||options.grid.markingsLineWidth,subPixel=lineWidth%2?.5:0;ctx.beginPath();ctx.strokeStyle=m.color||options.grid.markingsColor;ctx.lineWidth=lineWidth;if(xequal){ctx.moveTo(xrange.to+subPixel,yrange.from);ctx.lineTo(xrange.to+subPixel,yrange.to)}else{ctx.moveTo(xrange.from,yrange.to+subPixel);ctx.lineTo(xrange.to,yrange.to+subPixel)}ctx.stroke()}else{ctx.fillStyle=m.color||options.grid.markingsColor;ctx.fillRect(xrange.from,yrange.to,xrange.to-xrange.from,yrange.from-yrange.to)}}}axes=allAxes();bw=options.grid.borderWidth;for(var j=0;j<axes.length;++j){var axis=axes[j],box=axis.box,t=axis.tickLength,x,y,xoff,yoff;if(!axis.show||axis.ticks.length==0)continue;ctx.lineWidth=1;if(axis.direction=="x"){x=0;if(t=="full")y=axis.position=="top"?0:plotHeight;else y=box.top-plotOffset.top+(axis.position=="top"?box.height:0)}else{y=0;if(t=="full")x=axis.position=="left"?0:plotWidth;else x=box.left-plotOffset.left+(axis.position=="left"?box.width:0)}if(!axis.innermost){ctx.strokeStyle=axis.options.color;ctx.beginPath();xoff=yoff=0;if(axis.direction=="x")xoff=plotWidth+1;else yoff=plotHeight+1;if(ctx.lineWidth==1){if(axis.direction=="x"){y=Math.floor(y)+.5}else{x=Math.floor(x)+.5}}ctx.moveTo(x,y);ctx.lineTo(x+xoff,y+yoff);ctx.stroke()}ctx.strokeStyle=axis.options.tickColor;ctx.beginPath();for(i=0;i<axis.ticks.length;++i){var v=axis.ticks[i].v;xoff=yoff=0;if(isNaN(v)||v<axis.min||v>axis.max||t=="full"&&(typeof bw=="object"&&bw[axis.position]>0||bw>0)&&(v==axis.min||v==axis.max))continue;if(axis.direction=="x"){x=axis.p2c(v);yoff=t=="full"?-plotHeight:t;if(axis.position=="top")yoff=-yoff}else{y=axis.p2c(v);xoff=t=="full"?-plotWidth:t;if(axis.position=="left")xoff=-xoff}if(ctx.lineWidth==1){if(axis.direction=="x")x=Math.floor(x)+.5;else y=Math.floor(y)+.5}ctx.moveTo(x,y);ctx.lineTo(x+xoff,y+yoff)}ctx.stroke()}if(bw){bc=options.grid.borderColor;if(typeof bw=="object"||typeof bc=="object"){if(typeof bw!=="object"){bw={top:bw,right:bw,bottom:bw,left:bw}}if(typeof bc!=="object"){bc={top:bc,right:bc,bottom:bc,left:bc}}if(bw.top>0){ctx.strokeStyle=bc.top;ctx.lineWidth=bw.top;ctx.beginPath();ctx.moveTo(0-bw.left,0-bw.top/2);ctx.lineTo(plotWidth,0-bw.top/2);ctx.stroke()}if(bw.right>0){ctx.strokeStyle=bc.right;ctx.lineWidth=bw.right;ctx.beginPath();ctx.moveTo(plotWidth+bw.right/2,0-bw.top);ctx.lineTo(plotWidth+bw.right/2,plotHeight);ctx.stroke()}if(bw.bottom>0){ctx.strokeStyle=bc.bottom;ctx.lineWidth=bw.bottom;ctx.beginPath();ctx.moveTo(plotWidth+bw.right,plotHeight+bw.bottom/2);ctx.lineTo(0,plotHeight+bw.bottom/2);ctx.stroke()}if(bw.left>0){ctx.strokeStyle=bc.left;ctx.lineWidth=bw.left;ctx.beginPath();ctx.moveTo(0-bw.left/2,plotHeight+bw.bottom);ctx.lineTo(0-bw.left/2,0);ctx.stroke()}}else{ctx.lineWidth=bw;ctx.strokeStyle=options.grid.borderColor;ctx.strokeRect(-bw/2,-bw/2,plotWidth+bw,plotHeight+bw)}}ctx.restore()}function drawAxisLabels(){$.each(allAxes(),function(_,axis){var box=axis.box,legacyStyles=axis.direction+"Axis "+axis.direction+axis.n+"Axis",layer="flot-"+axis.direction+"-axis flot-"+axis.direction+axis.n+"-axis "+legacyStyles,font=axis.options.font||"flot-tick-label tickLabel",tick,x,y,halign,valign;surface.removeText(layer);if(!axis.show||axis.ticks.length==0)return;for(var i=0;i<axis.ticks.length;++i){tick=axis.ticks[i];if(!tick.label||tick.v<axis.min||tick.v>axis.max)continue;if(axis.direction=="x"){halign="center";x=plotOffset.left+axis.p2c(tick.v);if(axis.position=="bottom"){y=box.top+box.padding}else{y=box.top+box.height-box.padding;valign="bottom"}}else{valign="middle";y=plotOffset.top+axis.p2c(tick.v);if(axis.position=="left"){x=box.left+box.width-box.padding;halign="right"}else{x=box.left+box.padding}}surface.addText(layer,x,y,tick.label,font,null,null,halign,valign)}})}function drawSeries(series){if(series.lines.show)drawSeriesLines(series);if(series.bars.show)drawSeriesBars(series);if(series.points.show)drawSeriesPoints(series)}function drawSeriesLines(series){function plotLine(datapoints,xoffset,yoffset,axisx,axisy){var points=datapoints.points,ps=datapoints.pointsize,prevx=null,prevy=null;ctx.beginPath();for(var i=ps;i<points.length;i+=ps){var x1=points[i-ps],y1=points[i-ps+1],x2=points[i],y2=points[i+1];if(x1==null||x2==null)continue;if(y1<=y2&&y1<axisy.min){if(y2<axisy.min)continue;x1=(axisy.min-y1)/(y2-y1)*(x2-x1)+x1;y1=axisy.min}else if(y2<=y1&&y2<axisy.min){if(y1<axisy.min)continue;x2=(axisy.min-y1)/(y2-y1)*(x2-x1)+x1;y2=axisy.min}if(y1>=y2&&y1>axisy.max){if(y2>axisy.max)continue;x1=(axisy.max-y1)/(y2-y1)*(x2-x1)+x1;y1=axisy.max}else if(y2>=y1&&y2>axisy.max){if(y1>axisy.max)continue;x2=(axisy.max-y1)/(y2-y1)*(x2-x1)+x1;y2=axisy.max}if(x1<=x2&&x1<axisx.min){if(x2<axisx.min)continue;y1=(axisx.min-x1)/(x2-x1)*(y2-y1)+y1;x1=axisx.min}else if(x2<=x1&&x2<axisx.min){if(x1<axisx.min)continue;y2=(axisx.min-x1)/(x2-x1)*(y2-y1)+y1;x2=axisx.min}if(x1>=x2&&x1>axisx.max){if(x2>axisx.max)continue;y1=(axisx.max-x1)/(x2-x1)*(y2-y1)+y1;x1=axisx.max}else if(x2>=x1&&x2>axisx.max){if(x1>axisx.max)continue;y2=(axisx.max-x1)/(x2-x1)*(y2-y1)+y1;x2=axisx.max}if(x1!=prevx||y1!=prevy)ctx.moveTo(axisx.p2c(x1)+xoffset,axisy.p2c(y1)+yoffset);prevx=x2;prevy=y2;ctx.lineTo(axisx.p2c(x2)+xoffset,axisy.p2c(y2)+yoffset)}ctx.stroke()}function plotLineArea(datapoints,axisx,axisy){var points=datapoints.points,ps=datapoints.pointsize,bottom=Math.min(Math.max(0,axisy.min),axisy.max),i=0,top,areaOpen=false,ypos=1,segmentStart=0,segmentEnd=0;while(true){if(ps>0&&i>points.length+ps)break;i+=ps;var x1=points[i-ps],y1=points[i-ps+ypos],x2=points[i],y2=points[i+ypos];if(areaOpen){if(ps>0&&x1!=null&&x2==null){segmentEnd=i;ps=-ps;ypos=2;continue}if(ps<0&&i==segmentStart+ps){ctx.fill();areaOpen=false;ps=-ps;ypos=1;i=segmentStart=segmentEnd+ps;continue}}if(x1==null||x2==null)continue;if(x1<=x2&&x1<axisx.min){if(x2<axisx.min)continue;y1=(axisx.min-x1)/(x2-x1)*(y2-y1)+y1;x1=axisx.min}else if(x2<=x1&&x2<axisx.min){if(x1<axisx.min)continue;y2=(axisx.min-x1)/(x2-x1)*(y2-y1)+y1;x2=axisx.min}if(x1>=x2&&x1>axisx.max){if(x2>axisx.max)continue;y1=(axisx.max-x1)/(x2-x1)*(y2-y1)+y1;x1=axisx.max}else if(x2>=x1&&x2>axisx.max){if(x1>axisx.max)continue;y2=(axisx.max-x1)/(x2-x1)*(y2-y1)+y1;x2=axisx.max}if(!areaOpen){ctx.beginPath();ctx.moveTo(axisx.p2c(x1),axisy.p2c(bottom));areaOpen=true}if(y1>=axisy.max&&y2>=axisy.max){ctx.lineTo(axisx.p2c(x1),axisy.p2c(axisy.max));ctx.lineTo(axisx.p2c(x2),axisy.p2c(axisy.max));continue}else if(y1<=axisy.min&&y2<=axisy.min){ctx.lineTo(axisx.p2c(x1),axisy.p2c(axisy.min));ctx.lineTo(axisx.p2c(x2),axisy.p2c(axisy.min));continue}var x1old=x1,x2old=x2;if(y1<=y2&&y1<axisy.min&&y2>=axisy.min){x1=(axisy.min-y1)/(y2-y1)*(x2-x1)+x1;y1=axisy.min}else if(y2<=y1&&y2<axisy.min&&y1>=axisy.min){x2=(axisy.min-y1)/(y2-y1)*(x2-x1)+x1;y2=axisy.min}if(y1>=y2&&y1>axisy.max&&y2<=axisy.max){x1=(axisy.max-y1)/(y2-y1)*(x2-x1)+x1;y1=axisy.max}else if(y2>=y1&&y2>axisy.max&&y1<=axisy.max){x2=(axisy.max-y1)/(y2-y1)*(x2-x1)+x1;y2=axisy.max}if(x1!=x1old){ctx.lineTo(axisx.p2c(x1old),axisy.p2c(y1))}ctx.lineTo(axisx.p2c(x1),axisy.p2c(y1));ctx.lineTo(axisx.p2c(x2),axisy.p2c(y2));if(x2!=x2old){ctx.lineTo(axisx.p2c(x2),axisy.p2c(y2));ctx.lineTo(axisx.p2c(x2old),axisy.p2c(y2))}}}ctx.save();ctx.translate(plotOffset.left,plotOffset.top);ctx.lineJoin="round";var lw=series.lines.lineWidth,sw=series.shadowSize;if(lw>0&&sw>0){ctx.lineWidth=sw;ctx.strokeStyle="rgba(0,0,0,0.1)";var angle=Math.PI/18;plotLine(series.datapoints,Math.sin(angle)*(lw/2+sw/2),Math.cos(angle)*(lw/2+sw/2),series.xaxis,series.yaxis);ctx.lineWidth=sw/2;plotLine(series.datapoints,Math.sin(angle)*(lw/2+sw/4),Math.cos(angle)*(lw/2+sw/4),series.xaxis,series.yaxis)}ctx.lineWidth=lw;ctx.strokeStyle=series.color;var fillStyle=getFillStyle(series.lines,series.color,0,plotHeight);if(fillStyle){ctx.fillStyle=fillStyle;plotLineArea(series.datapoints,series.xaxis,series.yaxis)}if(lw>0)plotLine(series.datapoints,0,0,series.xaxis,series.yaxis);ctx.restore()}function drawSeriesPoints(series){function plotPoints(datapoints,radius,fillStyle,offset,shadow,axisx,axisy,symbol){var points=datapoints.points,ps=datapoints.pointsize;for(var i=0;i<points.length;i+=ps){var x=points[i],y=points[i+1];if(x==null||x<axisx.min||x>axisx.max||y<axisy.min||y>axisy.max)continue;ctx.beginPath();x=axisx.p2c(x);y=axisy.p2c(y)+offset;if(symbol=="circle")ctx.arc(x,y,radius,0,shadow?Math.PI:Math.PI*2,false);else symbol(ctx,x,y,radius,shadow);ctx.closePath();if(fillStyle){ctx.fillStyle=fillStyle;ctx.fill()}ctx.stroke()}}ctx.save();ctx.translate(plotOffset.left,plotOffset.top);var lw=series.points.lineWidth,sw=series.shadowSize,radius=series.points.radius,symbol=series.points.symbol;if(lw==0)lw=1e-4;if(lw>0&&sw>0){var w=sw/2;ctx.lineWidth=w;ctx.strokeStyle="rgba(0,0,0,0.1)";plotPoints(series.datapoints,radius,null,w+w/2,true,series.xaxis,series.yaxis,symbol);ctx.strokeStyle="rgba(0,0,0,0.2)";plotPoints(series.datapoints,radius,null,w/2,true,series.xaxis,series.yaxis,symbol)}ctx.lineWidth=lw;ctx.strokeStyle=series.color;plotPoints(series.datapoints,radius,getFillStyle(series.points,series.color),0,false,series.xaxis,series.yaxis,symbol);ctx.restore()}function drawBar(x,y,b,barLeft,barRight,fillStyleCallback,axisx,axisy,c,horizontal,lineWidth){var left,right,bottom,top,drawLeft,drawRight,drawTop,drawBottom,tmp;if(horizontal){drawBottom=drawRight=drawTop=true;drawLeft=false;left=b;right=x;top=y+barLeft;bottom=y+barRight;if(right<left){tmp=right;right=left;left=tmp;drawLeft=true;drawRight=false}}else{drawLeft=drawRight=drawTop=true;drawBottom=false;left=x+barLeft;right=x+barRight;bottom=b;top=y;if(top<bottom){tmp=top;top=bottom;bottom=tmp;drawBottom=true;drawTop=false}}if(right<axisx.min||left>axisx.max||top<axisy.min||bottom>axisy.max)return;if(left<axisx.min){left=axisx.min;drawLeft=false}if(right>axisx.max){right=axisx.max;drawRight=false}if(bottom<axisy.min){bottom=axisy.min;drawBottom=false}if(top>axisy.max){top=axisy.max;drawTop=false}left=axisx.p2c(left);bottom=axisy.p2c(bottom);right=axisx.p2c(right);top=axisy.p2c(top);if(fillStyleCallback){c.fillStyle=fillStyleCallback(bottom,top);c.fillRect(left,top,right-left,bottom-top)}if(lineWidth>0&&(drawLeft||drawRight||drawTop||drawBottom)){c.beginPath();c.moveTo(left,bottom);if(drawLeft)c.lineTo(left,top);else c.moveTo(left,top);if(drawTop)c.lineTo(right,top);else c.moveTo(right,top);if(drawRight)c.lineTo(right,bottom);else c.moveTo(right,bottom);if(drawBottom)c.lineTo(left,bottom);else c.moveTo(left,bottom);c.stroke()}}function drawSeriesBars(series){function plotBars(datapoints,barLeft,barRight,fillStyleCallback,axisx,axisy){var points=datapoints.points,ps=datapoints.pointsize;for(var i=0;i<points.length;i+=ps){if(points[i]==null)continue;drawBar(points[i],points[i+1],points[i+2],barLeft,barRight,fillStyleCallback,axisx,axisy,ctx,series.bars.horizontal,series.bars.lineWidth)}}ctx.save();ctx.translate(plotOffset.left,plotOffset.top);ctx.lineWidth=series.bars.lineWidth;ctx.strokeStyle=series.color;var barLeft;switch(series.bars.align){case"left":barLeft=0;break;case"right":barLeft=-series.bars.barWidth;break;default:barLeft=-series.bars.barWidth/2}var fillStyleCallback=series.bars.fill?function(bottom,top){return getFillStyle(series.bars,series.color,bottom,top)}:null;plotBars(series.datapoints,barLeft,barLeft+series.bars.barWidth,fillStyleCallback,series.xaxis,series.yaxis);ctx.restore()}function getFillStyle(filloptions,seriesColor,bottom,top){var fill=filloptions.fill;if(!fill)return null;if(filloptions.fillColor)return getColorOrGradient(filloptions.fillColor,bottom,top,seriesColor);var c=$.color.parse(seriesColor);c.a=typeof fill=="number"?fill:.4;c.normalize();return c.toString()}function insertLegend(){if(options.legend.container!=null){$(options.legend.container).html("")}else{placeholder.find(".legend").remove()}if(!options.legend.show){return}var fragments=[],entries=[],rowStarted=false,lf=options.legend.labelFormatter,s,label;for(var i=0;i<series.length;++i){s=series[i];if(s.label){label=lf?lf(s.label,s):s.label;if(label){entries.push({label:label,color:s.color})}}}if(options.legend.sorted){if($.isFunction(options.legend.sorted)){entries.sort(options.legend.sorted)}else if(options.legend.sorted=="reverse"){entries.reverse()}else{var ascending=options.legend.sorted!="descending";entries.sort(function(a,b){return a.label==b.label?0:a.label<b.label!=ascending?1:-1})}}for(var i=0;i<entries.length;++i){var entry=entries[i];if(i%options.legend.noColumns==0){if(rowStarted)fragments.push("</tr>");fragments.push("<tr>");rowStarted=true}fragments.push('<td class="legendColorBox"><div style="border:1px solid '+options.legend.labelBoxBorderColor+';padding:1px"><div style="width:4px;height:0;border:5px solid '+entry.color+';overflow:hidden"></div></div></td>'+'<td class="legendLabel">'+entry.label+"</td>")}if(rowStarted)fragments.push("</tr>");if(fragments.length==0)return;var table='<table style="font-size:smaller;color:'+options.grid.color+'">'+fragments.join("")+"</table>";if(options.legend.container!=null)$(options.legend.container).html(table);else{var pos="",p=options.legend.position,m=options.legend.margin;if(m[0]==null)m=[m,m];if(p.charAt(0)=="n")pos+="top:"+(m[1]+plotOffset.top)+"px;";else if(p.charAt(0)=="s")pos+="bottom:"+(m[1]+plotOffset.bottom)+"px;";if(p.charAt(1)=="e")pos+="right:"+(m[0]+plotOffset.right)+"px;";else if(p.charAt(1)=="w")pos+="left:"+(m[0]+plotOffset.left)+"px;";var legend=$('<div class="legend">'+table.replace('style="','style="position:absolute;'+pos+";")+"</div>").appendTo(placeholder);if(options.legend.backgroundOpacity!=0){var c=options.legend.backgroundColor;if(c==null){c=options.grid.backgroundColor;if(c&&typeof c=="string")c=$.color.parse(c);else c=$.color.extract(legend,"background-color");c.a=1;c=c.toString()}var div=legend.children();$('<div style="position:absolute;width:'+div.width()+"px;height:"+div.height()+"px;"+pos+"background-color:"+c+';"> </div>').prependTo(legend).css("opacity",options.legend.backgroundOpacity)}}}var highlights=[],redrawTimeout=null;function findNearbyItem(mouseX,mouseY,seriesFilter){var maxDistance=options.grid.mouseActiveRadius,smallestDistance=maxDistance*maxDistance+1,item=null,foundPoint=false,i,j,ps;for(i=series.length-1;i>=0;--i){if(!seriesFilter(series[i]))continue;var s=series[i],axisx=s.xaxis,axisy=s.yaxis,points=s.datapoints.points,mx=axisx.c2p(mouseX),my=axisy.c2p(mouseY),maxx=maxDistance/axisx.scale,maxy=maxDistance/axisy.scale;ps=s.datapoints.pointsize;if(axisx.options.inverseTransform)maxx=Number.MAX_VALUE;if(axisy.options.inverseTransform)maxy=Number.MAX_VALUE;if(s.lines.show||s.points.show){for(j=0;j<points.length;j+=ps){var x=points[j],y=points[j+1];if(x==null)continue;if(x-mx>maxx||x-mx<-maxx||y-my>maxy||y-my<-maxy)continue;var dx=Math.abs(axisx.p2c(x)-mouseX),dy=Math.abs(axisy.p2c(y)-mouseY),dist=dx*dx+dy*dy;if(dist<smallestDistance){smallestDistance=dist;item=[i,j/ps]}}}if(s.bars.show&&!item){var barLeft,barRight;switch(s.bars.align){case"left":barLeft=0;break;case"right":barLeft=-s.bars.barWidth;break;default:barLeft=-s.bars.barWidth/2}barRight=barLeft+s.bars.barWidth;for(j=0;j<points.length;j+=ps){var x=points[j],y=points[j+1],b=points[j+2];if(x==null)continue;if(series[i].bars.horizontal?mx<=Math.max(b,x)&&mx>=Math.min(b,x)&&my>=y+barLeft&&my<=y+barRight:mx>=x+barLeft&&mx<=x+barRight&&my>=Math.min(b,y)&&my<=Math.max(b,y))item=[i,j/ps]}}}if(item){i=item[0];j=item[1];ps=series[i].datapoints.pointsize;return{datapoint:series[i].datapoints.points.slice(j*ps,(j+1)*ps),dataIndex:j,series:series[i],seriesIndex:i}}return null}function onMouseMove(e){if(options.grid.hoverable)triggerClickHoverEvent("plothover",e,function(s){return s["hoverable"]!=false})}function onMouseLeave(e){if(options.grid.hoverable)triggerClickHoverEvent("plothover",e,function(s){return false})}function onClick(e){triggerClickHoverEvent("plotclick",e,function(s){return s["clickable"]!=false})}function triggerClickHoverEvent(eventname,event,seriesFilter){var offset=eventHolder.offset(),canvasX=event.pageX-offset.left-plotOffset.left,canvasY=event.pageY-offset.top-plotOffset.top,pos=canvasToAxisCoords({left:canvasX,top:canvasY});pos.pageX=event.pageX;pos.pageY=event.pageY;var item=findNearbyItem(canvasX,canvasY,seriesFilter);if(item){item.pageX=parseInt(item.series.xaxis.p2c(item.datapoint[0])+offset.left+plotOffset.left,10);item.pageY=parseInt(item.series.yaxis.p2c(item.datapoint[1])+offset.top+plotOffset.top,10)}if(options.grid.autoHighlight){for(var i=0;i<highlights.length;++i){var h=highlights[i];if(h.auto==eventname&&!(item&&h.series==item.series&&h.point[0]==item.datapoint[0]&&h.point[1]==item.datapoint[1]))unhighlight(h.series,h.point)}if(item)highlight(item.series,item.datapoint,eventname)}placeholder.trigger(eventname,[pos,item])}function triggerRedrawOverlay(){var t=options.interaction.redrawOverlayInterval;if(t==-1){drawOverlay();return}if(!redrawTimeout)redrawTimeout=setTimeout(drawOverlay,t)}function drawOverlay(){redrawTimeout=null;octx.save();overlay.clear();octx.translate(plotOffset.left,plotOffset.top);var i,hi;for(i=0;i<highlights.length;++i){hi=highlights[i];if(hi.series.bars.show)drawBarHighlight(hi.series,hi.point);else drawPointHighlight(hi.series,hi.point)}octx.restore();executeHooks(hooks.drawOverlay,[octx])}function highlight(s,point,auto){if(typeof s=="number")s=series[s];if(typeof point=="number"){var ps=s.datapoints.pointsize;point=s.datapoints.points.slice(ps*point,ps*(point+1))}var i=indexOfHighlight(s,point);if(i==-1){highlights.push({series:s,point:point,auto:auto});triggerRedrawOverlay()}else if(!auto)highlights[i].auto=false}function unhighlight(s,point){if(s==null&&point==null){highlights=[];triggerRedrawOverlay();return}if(typeof s=="number")s=series[s];if(typeof point=="number"){var ps=s.datapoints.pointsize;point=s.datapoints.points.slice(ps*point,ps*(point+1))}var i=indexOfHighlight(s,point);if(i!=-1){highlights.splice(i,1);triggerRedrawOverlay()}}function indexOfHighlight(s,p){for(var i=0;i<highlights.length;++i){var h=highlights[i];if(h.series==s&&h.point[0]==p[0]&&h.point[1]==p[1])return i}return-1}function drawPointHighlight(series,point){var x=point[0],y=point[1],axisx=series.xaxis,axisy=series.yaxis,highlightColor=typeof series.highlightColor==="string"?series.highlightColor:$.color.parse(series.color).scale("a",.5).toString();if(x<axisx.min||x>axisx.max||y<axisy.min||y>axisy.max)return;var pointRadius=series.points.radius+series.points.lineWidth/2;octx.lineWidth=pointRadius;octx.strokeStyle=highlightColor;var radius=1.5*pointRadius;x=axisx.p2c(x);y=axisy.p2c(y);octx.beginPath();if(series.points.symbol=="circle")octx.arc(x,y,radius,0,2*Math.PI,false);else series.points.symbol(octx,x,y,radius,false);octx.closePath();octx.stroke()}function drawBarHighlight(series,point){var highlightColor=typeof series.highlightColor==="string"?series.highlightColor:$.color.parse(series.color).scale("a",.5).toString(),fillStyle=highlightColor,barLeft;switch(series.bars.align){case"left":barLeft=0;break;case"right":barLeft=-series.bars.barWidth;break;default:barLeft=-series.bars.barWidth/2}octx.lineWidth=series.bars.lineWidth;octx.strokeStyle=highlightColor;drawBar(point[0],point[1],point[2]||0,barLeft,barLeft+series.bars.barWidth,function(){return fillStyle},series.xaxis,series.yaxis,octx,series.bars.horizontal,series.bars.lineWidth)}function getColorOrGradient(spec,bottom,top,defaultColor){if(typeof spec=="string")return spec;else{var gradient=ctx.createLinearGradient(0,top,0,bottom);for(var i=0,l=spec.colors.length;i<l;++i){var c=spec.colors[i];if(typeof c!="string"){var co=$.color.parse(defaultColor);if(c.brightness!=null)co=co.scale("rgb",c.brightness);if(c.opacity!=null)co.a*=c.opacity;c=co.toString()}gradient.addColorStop(i/(l-1),c)}return gradient}}}$.plot=function(placeholder,data,options){var plot=new Plot($(placeholder),data,options,$.plot.plugins);return plot};$.plot.version="0.8.3";$.plot.plugins=[];$.fn.plot=function(data,options){return this.each(function(){$.plot(this,data,options)})};function floorInBase(n,base){return base*Math.floor(n/base)}})(jQuery); 
diff --git a/library/cpp/lwtrace/mon/static/js/jquery.flot.navigate.min.js b/library/cpp/lwtrace/mon/static/js/jquery.flot.navigate.min.js
index af5ecd21e1..a7593fc8a7 100644
--- a/library/cpp/lwtrace/mon/static/js/jquery.flot.navigate.min.js
+++ b/library/cpp/lwtrace/mon/static/js/jquery.flot.navigate.min.js
@@ -1,7 +1,7 @@
-/* Javascript plotting library for jQuery, version 0.8.3.
-
-Copyright (c) 2007-2014 IOLA and Ole Laursen.
-Licensed under the MIT license.
-
-*/
-(function(a){function e(h){var k,j=this,l=h.data||{};if(l.elem)j=h.dragTarget=l.elem,h.dragProxy=d.proxy||j,h.cursorOffsetX=l.pageX-l.left,h.cursorOffsetY=l.pageY-l.top,h.offsetX=h.pageX-h.cursorOffsetX,h.offsetY=h.pageY-h.cursorOffsetY;else if(d.dragging||l.which>0&&h.which!=l.which||a(h.target).is(l.not))return;switch(h.type){case"mousedown":return a.extend(l,a(j).offset(),{elem:j,target:h.target,pageX:h.pageX,pageY:h.pageY}),b.add(document,"mousemove mouseup",e,l),i(j,!1),d.dragging=null,!1;case!d.dragging&&"mousemove":if(g(h.pageX-l.pageX)+g(h.pageY-l.pageY)<l.distance)break;h.target=l.target,k=f(h,"dragstart",j),k!==!1&&(d.dragging=j,d.proxy=h.dragProxy=a(k||j)[0]);case"mousemove":if(d.dragging){if(k=f(h,"drag",j),c.drop&&(c.drop.allowed=k!==!1,c.drop.handler(h)),k!==!1)break;h.type="mouseup"}case"mouseup":b.remove(document,"mousemove mouseup",e),d.dragging&&(c.drop&&c.drop.handler(h),f(h,"dragend",j)),i(j,!0),d.dragging=d.proxy=l.elem=!1}return!0}function f(b,c,d){b.type=c;var e=a.event.dispatch.call(d,b);return e===!1?!1:e||b.result}function g(a){return Math.pow(a,2)}function h(){return d.dragging===!1}function i(a,b){a&&(a.unselectable=b?"off":"on",a.onselectstart=function(){return b},a.style&&(a.style.MozUserSelect=b?"":"none"))}a.fn.drag=function(a,b,c){return b&&this.bind("dragstart",a),c&&this.bind("dragend",c),a?this.bind("drag",b?b:a):this.trigger("drag")};var b=a.event,c=b.special,d=c.drag={not:":input",distance:0,which:1,dragging:!1,setup:function(c){c=a.extend({distance:d.distance,which:d.which,not:d.not},c||{}),c.distance=g(c.distance),b.add(this,"mousedown",e,c),this.attachEvent&&this.attachEvent("ondragstart",h)},teardown:function(){b.remove(this,"mousedown",e),this===d.dragging&&(d.dragging=d.proxy=!1),i(this,!0),this.detachEvent&&this.detachEvent("ondragstart",h)}};c.dragstart=c.dragend={setup:function(){},teardown:function(){}}})(jQuery);(function(d){function e(a){var b=a||window.event,c=[].slice.call(arguments,1),f=0,e=0,g=0,a=d.event.fix(b);a.type="mousewheel";b.wheelDelta&&(f=b.wheelDelta/120);b.detail&&(f=-b.detail/3);g=f;void 0!==b.axis&&b.axis===b.HORIZONTAL_AXIS&&(g=0,e=-1*f);void 0!==b.wheelDeltaY&&(g=b.wheelDeltaY/120);void 0!==b.wheelDeltaX&&(e=-1*b.wheelDeltaX/120);c.unshift(a,f,e,g);return(d.event.dispatch||d.event.handle).apply(this,c)}var c=["DOMMouseScroll","mousewheel"];if(d.event.fixHooks)for(var h=c.length;h;)d.event.fixHooks[c[--h]]=d.event.mouseHooks;d.event.special.mousewheel={setup:function(){if(this.addEventListener)for(var a=c.length;a;)this.addEventListener(c[--a],e,!1);else this.onmousewheel=e},teardown:function(){if(this.removeEventListener)for(var a=c.length;a;)this.removeEventListener(c[--a],e,!1);else this.onmousewheel=null}};d.fn.extend({mousewheel:function(a){return a?this.bind("mousewheel",a):this.trigger("mousewheel")},unmousewheel:function(a){return this.unbind("mousewheel",a)}})})(jQuery);(function($){var options={xaxis:{zoomRange:null,panRange:null},zoom:{interactive:false,trigger:"dblclick",amount:1.5},pan:{interactive:false,cursor:"move",frameRate:20}};function init(plot){function onZoomClick(e,zoomOut){var c=plot.offset();c.left=e.pageX-c.left;c.top=e.pageY-c.top;if(zoomOut)plot.zoomOut({center:c});else plot.zoom({center:c})}function onMouseWheel(e,delta){e.preventDefault();onZoomClick(e,delta<0);return false}var prevCursor="default",prevPageX=0,prevPageY=0,panTimeout=null;function onDragStart(e){if(e.which!=1)return false;var c=plot.getPlaceholder().css("cursor");if(c)prevCursor=c;plot.getPlaceholder().css("cursor",plot.getOptions().pan.cursor);prevPageX=e.pageX;prevPageY=e.pageY}function onDrag(e){var frameRate=plot.getOptions().pan.frameRate;if(panTimeout||!frameRate)return;panTimeout=setTimeout(function(){plot.pan({left:prevPageX-e.pageX,top:prevPageY-e.pageY});prevPageX=e.pageX;prevPageY=e.pageY;panTimeout=null},1/frameRate*1e3)}function onDragEnd(e){if(panTimeout){clearTimeout(panTimeout);panTimeout=null}plot.getPlaceholder().css("cursor",prevCursor);plot.pan({left:prevPageX-e.pageX,top:prevPageY-e.pageY})}function bindEvents(plot,eventHolder){var o=plot.getOptions();if(o.zoom.interactive){eventHolder[o.zoom.trigger](onZoomClick);eventHolder.mousewheel(onMouseWheel)}if(o.pan.interactive){eventHolder.bind("dragstart",{distance:10},onDragStart);eventHolder.bind("drag",onDrag);eventHolder.bind("dragend",onDragEnd)}}plot.zoomOut=function(args){if(!args)args={};if(!args.amount)args.amount=plot.getOptions().zoom.amount;args.amount=1/args.amount;plot.zoom(args)};plot.zoom=function(args){if(!args)args={};var c=args.center,amount=args.amount||plot.getOptions().zoom.amount,w=plot.width(),h=plot.height();if(!c)c={left:w/2,top:h/2};var xf=c.left/w,yf=c.top/h,minmax={x:{min:c.left-xf*w/amount,max:c.left+(1-xf)*w/amount},y:{min:c.top-yf*h/amount,max:c.top+(1-yf)*h/amount}};$.each(plot.getAxes(),function(_,axis){var opts=axis.options,min=minmax[axis.direction].min,max=minmax[axis.direction].max,zr=opts.zoomRange,pr=opts.panRange;if(zr===false)return;min=axis.c2p(min);max=axis.c2p(max);if(min>max){var tmp=min;min=max;max=tmp}if(pr){if(pr[0]!=null&&min<pr[0]){min=pr[0]}if(pr[1]!=null&&max>pr[1]){max=pr[1]}}var range=max-min;if(zr&&(zr[0]!=null&&range<zr[0]&&amount>1||zr[1]!=null&&range>zr[1]&&amount<1))return;opts.min=min;opts.max=max});plot.setupGrid();plot.draw();if(!args.preventEvent)plot.getPlaceholder().trigger("plotzoom",[plot,args])};plot.pan=function(args){var delta={x:+args.left,y:+args.top};if(isNaN(delta.x))delta.x=0;if(isNaN(delta.y))delta.y=0;$.each(plot.getAxes(),function(_,axis){var opts=axis.options,min,max,d=delta[axis.direction];min=axis.c2p(axis.p2c(axis.min)+d),max=axis.c2p(axis.p2c(axis.max)+d);var pr=opts.panRange;if(pr===false)return;if(pr){if(pr[0]!=null&&pr[0]>min){d=pr[0]-min;min+=d;max+=d}if(pr[1]!=null&&pr[1]<max){d=pr[1]-max;min+=d;max+=d}}opts.min=min;opts.max=max});plot.setupGrid();plot.draw();if(!args.preventEvent)plot.getPlaceholder().trigger("plotpan",[plot,args])};function shutdown(plot,eventHolder){eventHolder.unbind(plot.getOptions().zoom.trigger,onZoomClick);eventHolder.unbind("mousewheel",onMouseWheel);eventHolder.unbind("dragstart",onDragStart);eventHolder.unbind("drag",onDrag);eventHolder.unbind("dragend",onDragEnd);if(panTimeout)clearTimeout(panTimeout)}plot.hooks.bindEvents.push(bindEvents);plot.hooks.shutdown.push(shutdown)}$.plot.plugins.push({init:init,options:options,name:"navigate",version:"1.3"})})(jQuery);
+/* Javascript plotting library for jQuery, version 0.8.3. 
+ 
+Copyright (c) 2007-2014 IOLA and Ole Laursen. 
+Licensed under the MIT license. 
+ 
+*/ 
+(function(a){function e(h){var k,j=this,l=h.data||{};if(l.elem)j=h.dragTarget=l.elem,h.dragProxy=d.proxy||j,h.cursorOffsetX=l.pageX-l.left,h.cursorOffsetY=l.pageY-l.top,h.offsetX=h.pageX-h.cursorOffsetX,h.offsetY=h.pageY-h.cursorOffsetY;else if(d.dragging||l.which>0&&h.which!=l.which||a(h.target).is(l.not))return;switch(h.type){case"mousedown":return a.extend(l,a(j).offset(),{elem:j,target:h.target,pageX:h.pageX,pageY:h.pageY}),b.add(document,"mousemove mouseup",e,l),i(j,!1),d.dragging=null,!1;case!d.dragging&&"mousemove":if(g(h.pageX-l.pageX)+g(h.pageY-l.pageY)<l.distance)break;h.target=l.target,k=f(h,"dragstart",j),k!==!1&&(d.dragging=j,d.proxy=h.dragProxy=a(k||j)[0]);case"mousemove":if(d.dragging){if(k=f(h,"drag",j),c.drop&&(c.drop.allowed=k!==!1,c.drop.handler(h)),k!==!1)break;h.type="mouseup"}case"mouseup":b.remove(document,"mousemove mouseup",e),d.dragging&&(c.drop&&c.drop.handler(h),f(h,"dragend",j)),i(j,!0),d.dragging=d.proxy=l.elem=!1}return!0}function f(b,c,d){b.type=c;var e=a.event.dispatch.call(d,b);return e===!1?!1:e||b.result}function g(a){return Math.pow(a,2)}function h(){return d.dragging===!1}function i(a,b){a&&(a.unselectable=b?"off":"on",a.onselectstart=function(){return b},a.style&&(a.style.MozUserSelect=b?"":"none"))}a.fn.drag=function(a,b,c){return b&&this.bind("dragstart",a),c&&this.bind("dragend",c),a?this.bind("drag",b?b:a):this.trigger("drag")};var b=a.event,c=b.special,d=c.drag={not:":input",distance:0,which:1,dragging:!1,setup:function(c){c=a.extend({distance:d.distance,which:d.which,not:d.not},c||{}),c.distance=g(c.distance),b.add(this,"mousedown",e,c),this.attachEvent&&this.attachEvent("ondragstart",h)},teardown:function(){b.remove(this,"mousedown",e),this===d.dragging&&(d.dragging=d.proxy=!1),i(this,!0),this.detachEvent&&this.detachEvent("ondragstart",h)}};c.dragstart=c.dragend={setup:function(){},teardown:function(){}}})(jQuery);(function(d){function e(a){var b=a||window.event,c=[].slice.call(arguments,1),f=0,e=0,g=0,a=d.event.fix(b);a.type="mousewheel";b.wheelDelta&&(f=b.wheelDelta/120);b.detail&&(f=-b.detail/3);g=f;void 0!==b.axis&&b.axis===b.HORIZONTAL_AXIS&&(g=0,e=-1*f);void 0!==b.wheelDeltaY&&(g=b.wheelDeltaY/120);void 0!==b.wheelDeltaX&&(e=-1*b.wheelDeltaX/120);c.unshift(a,f,e,g);return(d.event.dispatch||d.event.handle).apply(this,c)}var c=["DOMMouseScroll","mousewheel"];if(d.event.fixHooks)for(var h=c.length;h;)d.event.fixHooks[c[--h]]=d.event.mouseHooks;d.event.special.mousewheel={setup:function(){if(this.addEventListener)for(var a=c.length;a;)this.addEventListener(c[--a],e,!1);else this.onmousewheel=e},teardown:function(){if(this.removeEventListener)for(var a=c.length;a;)this.removeEventListener(c[--a],e,!1);else this.onmousewheel=null}};d.fn.extend({mousewheel:function(a){return a?this.bind("mousewheel",a):this.trigger("mousewheel")},unmousewheel:function(a){return this.unbind("mousewheel",a)}})})(jQuery);(function($){var options={xaxis:{zoomRange:null,panRange:null},zoom:{interactive:false,trigger:"dblclick",amount:1.5},pan:{interactive:false,cursor:"move",frameRate:20}};function init(plot){function onZoomClick(e,zoomOut){var c=plot.offset();c.left=e.pageX-c.left;c.top=e.pageY-c.top;if(zoomOut)plot.zoomOut({center:c});else plot.zoom({center:c})}function onMouseWheel(e,delta){e.preventDefault();onZoomClick(e,delta<0);return false}var prevCursor="default",prevPageX=0,prevPageY=0,panTimeout=null;function onDragStart(e){if(e.which!=1)return false;var c=plot.getPlaceholder().css("cursor");if(c)prevCursor=c;plot.getPlaceholder().css("cursor",plot.getOptions().pan.cursor);prevPageX=e.pageX;prevPageY=e.pageY}function onDrag(e){var frameRate=plot.getOptions().pan.frameRate;if(panTimeout||!frameRate)return;panTimeout=setTimeout(function(){plot.pan({left:prevPageX-e.pageX,top:prevPageY-e.pageY});prevPageX=e.pageX;prevPageY=e.pageY;panTimeout=null},1/frameRate*1e3)}function onDragEnd(e){if(panTimeout){clearTimeout(panTimeout);panTimeout=null}plot.getPlaceholder().css("cursor",prevCursor);plot.pan({left:prevPageX-e.pageX,top:prevPageY-e.pageY})}function bindEvents(plot,eventHolder){var o=plot.getOptions();if(o.zoom.interactive){eventHolder[o.zoom.trigger](onZoomClick);eventHolder.mousewheel(onMouseWheel)}if(o.pan.interactive){eventHolder.bind("dragstart",{distance:10},onDragStart);eventHolder.bind("drag",onDrag);eventHolder.bind("dragend",onDragEnd)}}plot.zoomOut=function(args){if(!args)args={};if(!args.amount)args.amount=plot.getOptions().zoom.amount;args.amount=1/args.amount;plot.zoom(args)};plot.zoom=function(args){if(!args)args={};var c=args.center,amount=args.amount||plot.getOptions().zoom.amount,w=plot.width(),h=plot.height();if(!c)c={left:w/2,top:h/2};var xf=c.left/w,yf=c.top/h,minmax={x:{min:c.left-xf*w/amount,max:c.left+(1-xf)*w/amount},y:{min:c.top-yf*h/amount,max:c.top+(1-yf)*h/amount}};$.each(plot.getAxes(),function(_,axis){var opts=axis.options,min=minmax[axis.direction].min,max=minmax[axis.direction].max,zr=opts.zoomRange,pr=opts.panRange;if(zr===false)return;min=axis.c2p(min);max=axis.c2p(max);if(min>max){var tmp=min;min=max;max=tmp}if(pr){if(pr[0]!=null&&min<pr[0]){min=pr[0]}if(pr[1]!=null&&max>pr[1]){max=pr[1]}}var range=max-min;if(zr&&(zr[0]!=null&&range<zr[0]&&amount>1||zr[1]!=null&&range>zr[1]&&amount<1))return;opts.min=min;opts.max=max});plot.setupGrid();plot.draw();if(!args.preventEvent)plot.getPlaceholder().trigger("plotzoom",[plot,args])};plot.pan=function(args){var delta={x:+args.left,y:+args.top};if(isNaN(delta.x))delta.x=0;if(isNaN(delta.y))delta.y=0;$.each(plot.getAxes(),function(_,axis){var opts=axis.options,min,max,d=delta[axis.direction];min=axis.c2p(axis.p2c(axis.min)+d),max=axis.c2p(axis.p2c(axis.max)+d);var pr=opts.panRange;if(pr===false)return;if(pr){if(pr[0]!=null&&pr[0]>min){d=pr[0]-min;min+=d;max+=d}if(pr[1]!=null&&pr[1]<max){d=pr[1]-max;min+=d;max+=d}}opts.min=min;opts.max=max});plot.setupGrid();plot.draw();if(!args.preventEvent)plot.getPlaceholder().trigger("plotpan",[plot,args])};function shutdown(plot,eventHolder){eventHolder.unbind(plot.getOptions().zoom.trigger,onZoomClick);eventHolder.unbind("mousewheel",onMouseWheel);eventHolder.unbind("dragstart",onDragStart);eventHolder.unbind("drag",onDrag);eventHolder.unbind("dragend",onDragEnd);if(panTimeout)clearTimeout(panTimeout)}plot.hooks.bindEvents.push(bindEvents);plot.hooks.shutdown.push(shutdown)}$.plot.plugins.push({init:init,options:options,name:"navigate",version:"1.3"})})(jQuery); 
diff --git a/library/cpp/lwtrace/mon/static/js/jquery.flot.selection.min.js b/library/cpp/lwtrace/mon/static/js/jquery.flot.selection.min.js
index a0154fbc5b..da6185b1ef 100644
--- a/library/cpp/lwtrace/mon/static/js/jquery.flot.selection.min.js
+++ b/library/cpp/lwtrace/mon/static/js/jquery.flot.selection.min.js
@@ -1,7 +1,7 @@
-/* Javascript plotting library for jQuery, version 0.8.3.
-
-Copyright (c) 2007-2014 IOLA and Ole Laursen.
-Licensed under the MIT license.
-
-*/
-(function($){function init(plot){var selection={first:{x:-1,y:-1},second:{x:-1,y:-1},show:false,active:false};var savedhandlers={};var mouseUpHandler=null;function onMouseMove(e){if(selection.active){updateSelection(e);plot.getPlaceholder().trigger("plotselecting",[getSelection()])}}function onMouseDown(e){if(e.which!=1)return;document.body.focus();if(document.onselectstart!==undefined&&savedhandlers.onselectstart==null){savedhandlers.onselectstart=document.onselectstart;document.onselectstart=function(){return false}}if(document.ondrag!==undefined&&savedhandlers.ondrag==null){savedhandlers.ondrag=document.ondrag;document.ondrag=function(){return false}}setSelectionPos(selection.first,e);selection.active=true;mouseUpHandler=function(e){onMouseUp(e)};$(document).one("mouseup",mouseUpHandler)}function 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+/* Javascript plotting library for jQuery, version 0.8.3. 
+ 
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+Licensed under the MIT license. 
+ 
+*/ 
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diff --git a/library/cpp/lwtrace/mon/static/js/jquery.min.js b/library/cpp/lwtrace/mon/static/js/jquery.min.js
index ee48790811..c82a235fee 100644
--- a/library/cpp/lwtrace/mon/static/js/jquery.min.js
+++ b/library/cpp/lwtrace/mon/static/js/jquery.min.js
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if(match[2]){push.apply(results,slice.call(context.getElementsByTagName(selector),0));return results}else if((m=match[3])&&assertUsableClassName&&context.getElementsByClassName){push.apply(results,slice.call(context.getElementsByClassName(m),0));return results}}}return select(selector.replace(rtrim,"$1"),context,results,seed,xml)}Sizzle.matches=function(expr,elements){return Sizzle(expr,null,null,elements)};Sizzle.matchesSelector=function(elem,expr){return Sizzle(expr,null,null,[elem]).length>0};function createInputPseudo(type){return function(elem){var name=elem.nodeName.toLowerCase();return name==="input"&&elem.type===type}}function createButtonPseudo(type){return function(elem){var name=elem.nodeName.toLowerCase();return(name==="input"||name==="button")&&elem.type===type}}function createPositionalPseudo(fn){return markFunction(function(argument){argument=+argument;return markFunction(function(seed,matches){var j,matchIndexes=fn([],seed.length,argument),i=matchIndexes.length;while(i--){if(seed[j=matchIndexes[i]]){seed[j]=!(matches[j]=seed[j])}}})})}getText=Sizzle.getText=function(elem){var node,ret="",i=0,nodeType=elem.nodeType;if(nodeType){if(nodeType===1||nodeType===9||nodeType===11){if(typeof elem.textContent==="string"){return elem.textContent}else{for(elem=elem.firstChild;elem;elem=elem.nextSibling){ret+=getText(elem)}}}else if(nodeType===3||nodeType===4){return elem.nodeValue}}else{for(;node=elem[i];i++){ret+=getText(node)}}return ret};isXML=Sizzle.isXML=function(elem){var documentElement=elem&&(elem.ownerDocument||elem).documentElement;return documentElement?documentElement.nodeName!=="HTML":false};contains=Sizzle.contains=docElem.contains?function(a,b){var adown=a.nodeType===9?a.documentElement:a,bup=b&&b.parentNode;return a===bup||!!(bup&&bup.nodeType===1&&adown.contains&&adown.contains(bup))}:docElem.compareDocumentPosition?function(a,b){return b&&!!(a.compareDocumentPosition(b)&16)}:function(a,b){while(b=b.parentNode){if(b===a){return true}}return false};Sizzle.attr=function(elem,name){var val,xml=isXML(elem);if(!xml){name=name.toLowerCase()}if(val=Expr.attrHandle[name]){return val(elem)}if(xml||assertAttributes){return elem.getAttribute(name)}val=elem.getAttributeNode(name);return val?typeof elem[name]==="boolean"?elem[name]?name:null:val.specified?val.value:null:null};Expr=Sizzle.selectors={cacheLength:50,createPseudo:markFunction,match:matchExpr,attrHandle:assertHrefNotNormalized?{}:{href:function(elem){return elem.getAttribute("href",2)},type:function(elem){return elem.getAttribute("type")}},find:{ID:assertGetIdNotName?function(id,context,xml){if(typeof context.getElementById!==strundefined&&!xml){var m=context.getElementById(id);return m&&m.parentNode?[m]:[]}}:function(id,context,xml){if(typeof context.getElementById!==strundefined&&!xml){var m=context.getElementById(id);return m?m.id===id||typeof m.getAttributeNode!==strundefined&&m.getAttributeNode("id").value===id?[m]:undefined:[]}},TAG:assertTagNameNoComments?function(tag,context){if(typeof context.getElementsByTagName!==strundefined){return context.getElementsByTagName(tag)}}:function(tag,context){var results=context.getElementsByTagName(tag);if(tag==="*"){var elem,tmp=[],i=0;for(;elem=results[i];i++){if(elem.nodeType===1){tmp.push(elem)}}return tmp}return results},NAME:assertUsableName&&function(tag,context){if(typeof context.getElementsByName!==strundefined){return context.getElementsByName(name)}},CLASS:assertUsableClassName&&function(className,context,xml){if(typeof context.getElementsByClassName!==strundefined&&!xml){return context.getElementsByClassName(className)}}},relative:{">":{dir:"parentNode",first:true}," ":{dir:"parentNode"},"+":{dir:"previousSibling",first:true},"~":{dir:"previousSibling"}},preFilter:{ATTR:function(match){match[1]=match[1].replace(rbackslash,"");match[3]=(match[4]||match[5]||"").replace(rbackslash,"");if(match[2]==="~="){match[3]=" "+match[3]+" "}return match.slice(0,4)},CHILD:function(match){match[1]=match[1].toLowerCase();if(match[1]==="nth"){if(!match[2]){Sizzle.error(match[0])}match[3]=+(match[3]?match[4]+(match[5]||1):2*(match[2]==="even"||match[2]==="odd"));match[4]=+(match[6]+match[7]||match[2]==="odd")}else if(match[2]){Sizzle.error(match[0])}return match},PSEUDO:function(match){var unquoted,excess;if(matchExpr["CHILD"].test(match[0])){return null}if(match[3]){match[2]=match[3]}else if(unquoted=match[4]){if(rpseudo.test(unquoted)&&(excess=tokenize(unquoted,true))&&(excess=unquoted.indexOf(")",unquoted.length-excess)-unquoted.length)){unquoted=unquoted.slice(0,excess);match[0]=match[0].slice(0,excess)}match[2]=unquoted}return match.slice(0,3)}},filter:{ID:assertGetIdNotName?function(id){id=id.replace(rbackslash,"");return function(elem){return elem.getAttribute("id")===id}}:function(id){id=id.replace(rbackslash,"");return function(elem){var node=typeof elem.getAttributeNode!==strundefined&&elem.getAttributeNode("id");return node&&node.value===id}},TAG:function(nodeName){if(nodeName==="*"){return function(){return true}}nodeName=nodeName.replace(rbackslash,"").toLowerCase();return function(elem){return elem.nodeName&&elem.nodeName.toLowerCase()===nodeName}},CLASS:function(className){var pattern=classCache[expando][className+" "];return pattern||(pattern=new RegExp("(^|"+whitespace+")"+className+"("+whitespace+"|$)"))&&classCache(className,function(elem){return pattern.test(elem.className||typeof elem.getAttribute!==strundefined&&elem.getAttribute("class")||"")})},ATTR:function(name,operator,check){return function(elem,context){var result=Sizzle.attr(elem,name);if(result==null){return operator==="!="}if(!operator){return true}result+="";return operator==="="?result===check:operator==="!="?result!==check:operator==="^="?check&&result.indexOf(check)===0:operator==="*="?check&&result.indexOf(check)>-1:operator==="$="?check&&result.substr(result.length-check.length)===check:operator==="~="?(" "+result+" ").indexOf(check)>-1:operator==="|="?result===check||result.substr(0,check.length+1)===check+"-":false}},CHILD:function(type,argument,first,last){if(type==="nth"){return function(elem){var node,diff,parent=elem.parentNode;if(first===1&&last===0){return true}if(parent){diff=0;for(node=parent.firstChild;node;node=node.nextSibling){if(node.nodeType===1){diff++;
-if(elem===node){break}}}}diff-=last;return diff===first||diff%first===0&&diff/first>=0}}return function(elem){var node=elem;switch(type){case"only":case"first":while(node=node.previousSibling){if(node.nodeType===1){return false}}if(type==="first"){return true}node=elem;case"last":while(node=node.nextSibling){if(node.nodeType===1){return false}}return true}}},PSEUDO:function(pseudo,argument){var args,fn=Expr.pseudos[pseudo]||Expr.setFilters[pseudo.toLowerCase()]||Sizzle.error("unsupported pseudo: "+pseudo);if(fn[expando]){return fn(argument)}if(fn.length>1){args=[pseudo,pseudo,"",argument];return Expr.setFilters.hasOwnProperty(pseudo.toLowerCase())?markFunction(function(seed,matches){var idx,matched=fn(seed,argument),i=matched.length;while(i--){idx=indexOf.call(seed,matched[i]);seed[idx]=!(matches[idx]=matched[i])}}):function(elem){return fn(elem,0,args)}}return fn}},pseudos:{not:markFunction(function(selector){var input=[],results=[],matcher=compile(selector.replace(rtrim,"$1"));return matcher[expando]?markFunction(function(seed,matches,context,xml){var elem,unmatched=matcher(seed,null,xml,[]),i=seed.length;while(i--){if(elem=unmatched[i]){seed[i]=!(matches[i]=elem)}}}):function(elem,context,xml){input[0]=elem;matcher(input,null,xml,results);return!results.pop()}}),has:markFunction(function(selector){return function(elem){return Sizzle(selector,elem).length>0}}),contains:markFunction(function(text){return function(elem){return(elem.textContent||elem.innerText||getText(elem)).indexOf(text)>-1}}),enabled:function(elem){return elem.disabled===false},disabled:function(elem){return elem.disabled===true},checked:function(elem){var nodeName=elem.nodeName.toLowerCase();return nodeName==="input"&&!!elem.checked||nodeName==="option"&&!!elem.selected},selected:function(elem){if(elem.parentNode){elem.parentNode.selectedIndex}return elem.selected===true},parent:function(elem){return!Expr.pseudos["empty"](elem)},empty:function(elem){var nodeType;elem=elem.firstChild;while(elem){if(elem.nodeName>"@"||(nodeType=elem.nodeType)===3||nodeType===4){return false}elem=elem.nextSibling}return true},header:function(elem){return rheader.test(elem.nodeName)},text:function(elem){var type,attr;return elem.nodeName.toLowerCase()==="input"&&(type=elem.type)==="text"&&((attr=elem.getAttribute("type"))==null||attr.toLowerCase()===type)},radio:createInputPseudo("radio"),checkbox:createInputPseudo("checkbox"),file:createInputPseudo("file"),password:createInputPseudo("password"),image:createInputPseudo("image"),submit:createButtonPseudo("submit"),reset:createButtonPseudo("reset"),button:function(elem){var name=elem.nodeName.toLowerCase();return name==="input"&&elem.type==="button"||name==="button"},input:function(elem){return rinputs.test(elem.nodeName)},focus:function(elem){var doc=elem.ownerDocument;return elem===doc.activeElement&&(!doc.hasFocus||doc.hasFocus())&&!!(elem.type||elem.href||~elem.tabIndex)},active:function(elem){return elem===elem.ownerDocument.activeElement},first:createPositionalPseudo(function(){return[0]}),last:createPositionalPseudo(function(matchIndexes,length){return[length-1]}),eq:createPositionalPseudo(function(matchIndexes,length,argument){return[argument<0?argument+length:argument]}),even:createPositionalPseudo(function(matchIndexes,length){for(var i=0;i<length;i+=2){matchIndexes.push(i)}return matchIndexes}),odd:createPositionalPseudo(function(matchIndexes,length){for(var i=1;i<length;i+=2){matchIndexes.push(i)}return matchIndexes}),lt:createPositionalPseudo(function(matchIndexes,length,argument){for(var i=argument<0?argument+length:argument;--i>=0;){matchIndexes.push(i)}return matchIndexes}),gt:createPositionalPseudo(function(matchIndexes,length,argument){for(var i=argument<0?argument+length:argument;++i<length;){matchIndexes.push(i)}return matchIndexes})}};function siblingCheck(a,b,ret){if(a===b){return ret}var cur=a.nextSibling;while(cur){if(cur===b){return-1}cur=cur.nextSibling}return 1}sortOrder=docElem.compareDocumentPosition?function(a,b){if(a===b){hasDuplicate=true;return 0}return(!a.compareDocumentPosition||!b.compareDocumentPosition?a.compareDocumentPosition:a.compareDocumentPosition(b)&4)?-1:1}:function(a,b){if(a===b){hasDuplicate=true;return 0}else if(a.sourceIndex&&b.sourceIndex){return a.sourceIndex-b.sourceIndex}var al,bl,ap=[],bp=[],aup=a.parentNode,bup=b.parentNode,cur=aup;if(aup===bup){return siblingCheck(a,b)}else if(!aup){return-1}else if(!bup){return 1}while(cur){ap.unshift(cur);cur=cur.parentNode}cur=bup;while(cur){bp.unshift(cur);cur=cur.parentNode}al=ap.length;bl=bp.length;for(var i=0;i<al&&i<bl;i++){if(ap[i]!==bp[i]){return siblingCheck(ap[i],bp[i])}}return i===al?siblingCheck(a,bp[i],-1):siblingCheck(ap[i],b,1)};[0,0].sort(sortOrder);baseHasDuplicate=!hasDuplicate;Sizzle.uniqueSort=function(results){var elem,duplicates=[],i=1,j=0;hasDuplicate=baseHasDuplicate;results.sort(sortOrder);if(hasDuplicate){for(;elem=results[i];i++){if(elem===results[i-1]){j=duplicates.push(i)}}while(j--){results.splice(duplicates[j],1)}}return results};Sizzle.error=function(msg){throw new Error("Syntax error, unrecognized expression: "+msg)};function tokenize(selector,parseOnly){var matched,match,tokens,type,soFar,groups,preFilters,cached=tokenCache[expando][selector+" "];if(cached){return parseOnly?0:cached.slice(0)}soFar=selector;groups=[];preFilters=Expr.preFilter;while(soFar){if(!matched||(match=rcomma.exec(soFar))){if(match){soFar=soFar.slice(match[0].length)||soFar}groups.push(tokens=[])}matched=false;if(match=rcombinators.exec(soFar)){tokens.push(matched=new Token(match.shift()));soFar=soFar.slice(matched.length);matched.type=match[0].replace(rtrim," ")}for(type in Expr.filter){if((match=matchExpr[type].exec(soFar))&&(!preFilters[type]||(match=preFilters[type](match)))){tokens.push(matched=new Token(match.shift()));soFar=soFar.slice(matched.length);matched.type=type;matched.matches=match}}if(!matched){break}}return parseOnly?soFar.length:soFar?Sizzle.error(selector):tokenCache(selector,groups).slice(0)}function addCombinator(matcher,combinator,base){var dir=combinator.dir,checkNonElements=base&&combinator.dir==="parentNode",doneName=done++;return combinator.first?function(elem,context,xml){while(elem=elem[dir]){if(checkNonElements||elem.nodeType===1){return matcher(elem,context,xml)}}}:function(elem,context,xml){if(!xml){var cache,dirkey=dirruns+" "+doneName+" ",cachedkey=dirkey+cachedruns;while(elem=elem[dir]){if(checkNonElements||elem.nodeType===1){if((cache=elem[expando])===cachedkey){return elem.sizset}else if(typeof cache==="string"&&cache.indexOf(dirkey)===0){if(elem.sizset){return elem}}else{elem[expando]=cachedkey;if(matcher(elem,context,xml)){elem.sizset=true;return elem}elem.sizset=false}}}}else{while(elem=elem[dir]){if(checkNonElements||elem.nodeType===1){if(matcher(elem,context,xml)){return elem}}}}}}function elementMatcher(matchers){return matchers.length>1?function(elem,context,xml){var i=matchers.length;while(i--){if(!matchers[i](elem,context,xml)){return false}}return true}:matchers[0]}function condense(unmatched,map,filter,context,xml){var elem,newUnmatched=[],i=0,len=unmatched.length,mapped=map!=null;for(;i<len;i++){if(elem=unmatched[i]){if(!filter||filter(elem,context,xml)){newUnmatched.push(elem);if(mapped){map.push(i)}}}}return newUnmatched}function setMatcher(preFilter,selector,matcher,postFilter,postFinder,postSelector){if(postFilter&&!postFilter[expando]){postFilter=setMatcher(postFilter)}if(postFinder&&!postFinder[expando]){postFinder=setMatcher(postFinder,postSelector)}return markFunction(function(seed,results,context,xml){var temp,i,elem,preMap=[],postMap=[],preexisting=results.length,elems=seed||multipleContexts(selector||"*",context.nodeType?[context]:context,[]),matcherIn=preFilter&&(seed||!selector)?condense(elems,preMap,preFilter,context,xml):elems,matcherOut=matcher?postFinder||(seed?preFilter:preexisting||postFilter)?[]:results:matcherIn;if(matcher){matcher(matcherIn,matcherOut,context,xml)}if(postFilter){temp=condense(matcherOut,postMap);postFilter(temp,[],context,xml);i=temp.length;while(i--){if(elem=temp[i]){matcherOut[postMap[i]]=!(matcherIn[postMap[i]]=elem)}}}if(seed){if(postFinder||preFilter){if(postFinder){temp=[];i=matcherOut.length;while(i--){if(elem=matcherOut[i]){temp.push(matcherIn[i]=elem)}}postFinder(null,matcherOut=[],temp,xml)}i=matcherOut.length;while(i--){if((elem=matcherOut[i])&&(temp=postFinder?indexOf.call(seed,elem):preMap[i])>-1){seed[temp]=!(results[temp]=elem)}}}}else{matcherOut=condense(matcherOut===results?matcherOut.splice(preexisting,matcherOut.length):matcherOut);if(postFinder){postFinder(null,results,matcherOut,xml)}else{push.apply(results,matcherOut)}}})}function matcherFromTokens(tokens){var checkContext,matcher,j,len=tokens.length,leadingRelative=Expr.relative[tokens[0].type],implicitRelative=leadingRelative||Expr.relative[" "],i=leadingRelative?1:0,matchContext=addCombinator(function(elem){return elem===checkContext},implicitRelative,true),matchAnyContext=addCombinator(function(elem){return indexOf.call(checkContext,elem)>-1},implicitRelative,true),matchers=[function(elem,context,xml){return!leadingRelative&&(xml||context!==outermostContext)||((checkContext=context).nodeType?matchContext(elem,context,xml):matchAnyContext(elem,context,xml))}];for(;i<len;i++){if(matcher=Expr.relative[tokens[i].type]){matchers=[addCombinator(elementMatcher(matchers),matcher)]}else{matcher=Expr.filter[tokens[i].type].apply(null,tokens[i].matches);if(matcher[expando]){j=++i;for(;j<len;j++){if(Expr.relative[tokens[j].type]){break}}return setMatcher(i>1&&elementMatcher(matchers),i>1&&tokens.slice(0,i-1).join("").replace(rtrim,"$1"),matcher,i<j&&matcherFromTokens(tokens.slice(i,j)),j<len&&matcherFromTokens(tokens=tokens.slice(j)),j<len&&tokens.join(""))}matchers.push(matcher)}}return elementMatcher(matchers)}function matcherFromGroupMatchers(elementMatchers,setMatchers){var bySet=setMatchers.length>0,byElement=elementMatchers.length>0,superMatcher=function(seed,context,xml,results,expandContext){var elem,j,matcher,setMatched=[],matchedCount=0,i="0",unmatched=seed&&[],outermost=expandContext!=null,contextBackup=outermostContext,elems=seed||byElement&&Expr.find["TAG"]("*",expandContext&&context.parentNode||context),dirrunsUnique=dirruns+=contextBackup==null?1:Math.E;if(outermost){outermostContext=context!==document&&context;cachedruns=superMatcher.el}for(;(elem=elems[i])!=null;i++){if(byElement&&elem){for(j=0;matcher=elementMatchers[j];j++){if(matcher(elem,context,xml)){results.push(elem);break}}if(outermost){dirruns=dirrunsUnique;cachedruns=++superMatcher.el}}if(bySet){if(elem=!matcher&&elem){matchedCount--}if(seed){unmatched.push(elem)}}}matchedCount+=i;if(bySet&&i!==matchedCount){for(j=0;matcher=setMatchers[j];j++){matcher(unmatched,setMatched,context,xml)}if(seed){if(matchedCount>0){while(i--){if(!(unmatched[i]||setMatched[i])){setMatched[i]=pop.call(results)}}}setMatched=condense(setMatched)}push.apply(results,setMatched);if(outermost&&!seed&&setMatched.length>0&&matchedCount+setMatchers.length>1){Sizzle.uniqueSort(results)}}if(outermost){dirruns=dirrunsUnique;outermostContext=contextBackup}return unmatched};superMatcher.el=0;return bySet?markFunction(superMatcher):superMatcher}compile=Sizzle.compile=function(selector,group){var i,setMatchers=[],elementMatchers=[],cached=compilerCache[expando][selector+" "];if(!cached){if(!group){group=tokenize(selector)}i=group.length;while(i--){cached=matcherFromTokens(group[i]);if(cached[expando]){setMatchers.push(cached)}else{elementMatchers.push(cached)}}cached=compilerCache(selector,matcherFromGroupMatchers(elementMatchers,setMatchers))}return cached};function multipleContexts(selector,contexts,results){var i=0,len=contexts.length;for(;i<len;i++){Sizzle(selector,contexts[i],results)}return results}function select(selector,context,results,seed,xml){var i,tokens,token,type,find,match=tokenize(selector),j=match.length;if(!seed){if(match.length===1){tokens=match[0]=match[0].slice(0);if(tokens.length>2&&(token=tokens[0]).type==="ID"&&context.nodeType===9&&!xml&&Expr.relative[tokens[1].type]){context=Expr.find["ID"](token.matches[0].replace(rbackslash,""),context,xml)[0];if(!context){return results}selector=selector.slice(tokens.shift().length)}for(i=matchExpr["POS"].test(selector)?-1:tokens.length-1;i>=0;i--){token=tokens[i];if(Expr.relative[type=token.type]){break}if(find=Expr.find[type]){if(seed=find(token.matches[0].replace(rbackslash,""),rsibling.test(tokens[0].type)&&context.parentNode||context,xml)){tokens.splice(i,1);selector=seed.length&&tokens.join("");if(!selector){push.apply(results,slice.call(seed,0));return results}break}}}}}compile(selector,match)(seed,context,xml,results,rsibling.test(selector));return results}if(document.querySelectorAll){(function(){var disconnectedMatch,oldSelect=select,rescape=/'|\\/g,rattributeQuotes=/\=[\x20\t\r\n\f]*([^'"\]]*)[\x20\t\r\n\f]*\]/g,rbuggyQSA=[":focus"],rbuggyMatches=[":active"],matches=docElem.matchesSelector||docElem.mozMatchesSelector||docElem.webkitMatchesSelector||docElem.oMatchesSelector||docElem.msMatchesSelector;assert(function(div){div.innerHTML="<select><option selected=''></option></select>";if(!div.querySelectorAll("[selected]").length){rbuggyQSA.push("\\["+whitespace+"*(?:checked|disabled|ismap|multiple|readonly|selected|value)")}if(!div.querySelectorAll(":checked").length){rbuggyQSA.push(":checked")}});assert(function(div){div.innerHTML="<p test=''></p>";if(div.querySelectorAll("[test^='']").length){rbuggyQSA.push("[*^$]="+whitespace+"*(?:\"\"|'')")}div.innerHTML="<input type='hidden'/>";if(!div.querySelectorAll(":enabled").length){rbuggyQSA.push(":enabled",":disabled")}});rbuggyQSA=new RegExp(rbuggyQSA.join("|"));select=function(selector,context,results,seed,xml){if(!seed&&!xml&&!rbuggyQSA.test(selector)){var groups,i,old=true,nid=expando,newContext=context,newSelector=context.nodeType===9&&selector;if(context.nodeType===1&&context.nodeName.toLowerCase()!=="object"){groups=tokenize(selector);if(old=context.getAttribute("id")){nid=old.replace(rescape,"\\$&")}else{context.setAttribute("id",nid)}nid="[id='"+nid+"'] ";i=groups.length;while(i--){groups[i]=nid+groups[i].join("")}newContext=rsibling.test(selector)&&context.parentNode||context;newSelector=groups.join(",")}if(newSelector){try{push.apply(results,slice.call(newContext.querySelectorAll(newSelector),0));return results}catch(qsaError){}finally{if(!old){context.removeAttribute("id")}}}}return oldSelect(selector,context,results,seed,xml)};if(matches){assert(function(div){disconnectedMatch=matches.call(div,"div");try{matches.call(div,"[test!='']:sizzle");rbuggyMatches.push("!=",pseudos)}catch(e){}});rbuggyMatches=new RegExp(rbuggyMatches.join("|"));Sizzle.matchesSelector=function(elem,expr){expr=expr.replace(rattributeQuotes,"='$1']");if(!isXML(elem)&&!rbuggyMatches.test(expr)&&!rbuggyQSA.test(expr)){try{var ret=matches.call(elem,expr);if(ret||disconnectedMatch||elem.document&&elem.document.nodeType!==11){return ret}}catch(e){}}return Sizzle(expr,null,null,[elem]).length>0}}})()}Expr.pseudos["nth"]=Expr.pseudos["eq"];function setFilters(){}Expr.filters=setFilters.prototype=Expr.pseudos;Expr.setFilters=new setFilters;Sizzle.attr=jQuery.attr;jQuery.find=Sizzle;jQuery.expr=Sizzle.selectors;jQuery.expr[":"]=jQuery.expr.pseudos;jQuery.unique=Sizzle.uniqueSort;jQuery.text=Sizzle.getText;jQuery.isXMLDoc=Sizzle.isXML;jQuery.contains=Sizzle.contains})(window);var runtil=/Until$/,rparentsprev=/^(?:parents|prev(?:Until|All))/,isSimple=/^.[^:#\[\.,]*$/,rneedsContext=jQuery.expr.match.needsContext,guaranteedUnique={children:true,contents:true,next:true,prev:true};jQuery.fn.extend({find:function(selector){var i,l,length,n,r,ret,self=this;if(typeof selector!=="string"){return jQuery(selector).filter(function(){for(i=0,l=self.length;i<l;i++){if(jQuery.contains(self[i],this)){return true}}})}ret=this.pushStack("","find",selector);for(i=0,l=this.length;i<l;i++){length=ret.length;jQuery.find(selector,this[i],ret);if(i>0){for(n=length;n<ret.length;n++){for(r=0;r<length;r++){if(ret[r]===ret[n]){ret.splice(n--,1);break}}}}}return ret},has:function(target){var i,targets=jQuery(target,this),len=targets.length;return this.filter(function(){for(i=0;i<len;i++){if(jQuery.contains(this,targets[i])){return true}}})},not:function(selector){return this.pushStack(winnow(this,selector,false),"not",selector)},filter:function(selector){return this.pushStack(winnow(this,selector,true),"filter",selector)},is:function(selector){return!!selector&&(typeof 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")}for(type in Expr.filter){if((match=matchExpr[type].exec(soFar))&&(!preFilters[type]||(match=preFilters[type](match)))){tokens.push(matched=new Token(match.shift()));soFar=soFar.slice(matched.length);matched.type=type;matched.matches=match}}if(!matched){break}}return parseOnly?soFar.length:soFar?Sizzle.error(selector):tokenCache(selector,groups).slice(0)}function addCombinator(matcher,combinator,base){var dir=combinator.dir,checkNonElements=base&&combinator.dir==="parentNode",doneName=done++;return combinator.first?function(elem,context,xml){while(elem=elem[dir]){if(checkNonElements||elem.nodeType===1){return matcher(elem,context,xml)}}}:function(elem,context,xml){if(!xml){var cache,dirkey=dirruns+" "+doneName+" ",cachedkey=dirkey+cachedruns;while(elem=elem[dir]){if(checkNonElements||elem.nodeType===1){if((cache=elem[expando])===cachedkey){return elem.sizset}else if(typeof cache==="string"&&cache.indexOf(dirkey)===0){if(elem.sizset){return 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temp,i,elem,preMap=[],postMap=[],preexisting=results.length,elems=seed||multipleContexts(selector||"*",context.nodeType?[context]:context,[]),matcherIn=preFilter&&(seed||!selector)?condense(elems,preMap,preFilter,context,xml):elems,matcherOut=matcher?postFinder||(seed?preFilter:preexisting||postFilter)?[]:results:matcherIn;if(matcher){matcher(matcherIn,matcherOut,context,xml)}if(postFilter){temp=condense(matcherOut,postMap);postFilter(temp,[],context,xml);i=temp.length;while(i--){if(elem=temp[i]){matcherOut[postMap[i]]=!(matcherIn[postMap[i]]=elem)}}}if(seed){if(postFinder||preFilter){if(postFinder){temp=[];i=matcherOut.length;while(i--){if(elem=matcherOut[i]){temp.push(matcherIn[i]=elem)}}postFinder(null,matcherOut=[],temp,xml)}i=matcherOut.length;while(i--){if((elem=matcherOut[i])&&(temp=postFinder?indexOf.call(seed,elem):preMap[i])>-1){seed[temp]=!(results[temp]=elem)}}}}else{matcherOut=condense(matcherOut===results?matcherOut.splice(preexisting,matcherOut.length):matcherOut);if(postFinder){postFinder(null,results,matcherOut,xml)}else{push.apply(results,matcherOut)}}})}function matcherFromTokens(tokens){var checkContext,matcher,j,len=tokens.length,leadingRelative=Expr.relative[tokens[0].type],implicitRelative=leadingRelative||Expr.relative[" "],i=leadingRelative?1:0,matchContext=addCombinator(function(elem){return elem===checkContext},implicitRelative,true),matchAnyContext=addCombinator(function(elem){return indexOf.call(checkContext,elem)>-1},implicitRelative,true),matchers=[function(elem,context,xml){return!leadingRelative&&(xml||context!==outermostContext)||((checkContext=context).nodeType?matchContext(elem,context,xml):matchAnyContext(elem,context,xml))}];for(;i<len;i++){if(matcher=Expr.relative[tokens[i].type]){matchers=[addCombinator(elementMatcher(matchers),matcher)]}else{matcher=Expr.filter[tokens[i].type].apply(null,tokens[i].matches);if(matcher[expando]){j=++i;for(;j<len;j++){if(Expr.relative[tokens[j].type]){break}}return setMatcher(i>1&&elementMatcher(matchers),i>1&&tokens.slice(0,i-1).join("").replace(rtrim,"$1"),matcher,i<j&&matcherFromTokens(tokens.slice(i,j)),j<len&&matcherFromTokens(tokens=tokens.slice(j)),j<len&&tokens.join(""))}matchers.push(matcher)}}return elementMatcher(matchers)}function matcherFromGroupMatchers(elementMatchers,setMatchers){var bySet=setMatchers.length>0,byElement=elementMatchers.length>0,superMatcher=function(seed,context,xml,results,expandContext){var elem,j,matcher,setMatched=[],matchedCount=0,i="0",unmatched=seed&&[],outermost=expandContext!=null,contextBackup=outermostContext,elems=seed||byElement&&Expr.find["TAG"]("*",expandContext&&context.parentNode||context),dirrunsUnique=dirruns+=contextBackup==null?1:Math.E;if(outermost){outermostContext=context!==document&&context;cachedruns=superMatcher.el}for(;(elem=elems[i])!=null;i++){if(byElement&&elem){for(j=0;matcher=elementMatchers[j];j++){if(matcher(elem,context,xml)){results.push(elem);break}}if(outermost){dirruns=dirrunsUnique;cachedruns=++superMatcher.el}}if(bySet){if(elem=!matcher&&elem){matchedCount--}if(seed){unmatched.push(elem)}}}matchedCount+=i;if(bySet&&i!==matchedCount){for(j=0;matcher=setMatchers[j];j++){matcher(unmatched,setMatched,context,xml)}if(seed){if(matchedCount>0){while(i--){if(!(unmatched[i]||setMatched[i])){setMatched[i]=pop.call(results)}}}setMatched=condense(setMatched)}push.apply(results,setMatched);if(outermost&&!seed&&setMatched.length>0&&matchedCount+setMatchers.length>1){Sizzle.uniqueSort(results)}}if(outermost){dirruns=dirrunsUnique;outermostContext=contextBackup}return unmatched};superMatcher.el=0;return bySet?markFunction(superMatcher):superMatcher}compile=Sizzle.compile=function(selector,group){var i,setMatchers=[],elementMatchers=[],cached=compilerCache[expando][selector+" "];if(!cached){if(!group){group=tokenize(selector)}i=group.length;while(i--){cached=matcherFromTokens(group[i]);if(cached[expando]){setMatchers.push(cached)}else{elementMatchers.push(cached)}}cached=compilerCache(selector,matcherFromGroupMatchers(elementMatchers,setMatchers))}return cached};function multipleContexts(selector,contexts,results){var i=0,len=contexts.length;for(;i<len;i++){Sizzle(selector,contexts[i],results)}return results}function select(selector,context,results,seed,xml){var i,tokens,token,type,find,match=tokenize(selector),j=match.length;if(!seed){if(match.length===1){tokens=match[0]=match[0].slice(0);if(tokens.length>2&&(token=tokens[0]).type==="ID"&&context.nodeType===9&&!xml&&Expr.relative[tokens[1].type]){context=Expr.find["ID"](token.matches[0].replace(rbackslash,""),context,xml)[0];if(!context){return results}selector=selector.slice(tokens.shift().length)}for(i=matchExpr["POS"].test(selector)?-1:tokens.length-1;i>=0;i--){token=tokens[i];if(Expr.relative[type=token.type]){break}if(find=Expr.find[type]){if(seed=find(token.matches[0].replace(rbackslash,""),rsibling.test(tokens[0].type)&&context.parentNode||context,xml)){tokens.splice(i,1);selector=seed.length&&tokens.join("");if(!selector){push.apply(results,slice.call(seed,0));return results}break}}}}}compile(selector,match)(seed,context,xml,results,rsibling.test(selector));return results}if(document.querySelectorAll){(function(){var disconnectedMatch,oldSelect=select,rescape=/'|\\/g,rattributeQuotes=/\=[\x20\t\r\n\f]*([^'"\]]*)[\x20\t\r\n\f]*\]/g,rbuggyQSA=[":focus"],rbuggyMatches=[":active"],matches=docElem.matchesSelector||docElem.mozMatchesSelector||docElem.webkitMatchesSelector||docElem.oMatchesSelector||docElem.msMatchesSelector;assert(function(div){div.innerHTML="<select><option selected=''></option></select>";if(!div.querySelectorAll("[selected]").length){rbuggyQSA.push("\\["+whitespace+"*(?:checked|disabled|ismap|multiple|readonly|selected|value)")}if(!div.querySelectorAll(":checked").length){rbuggyQSA.push(":checked")}});assert(function(div){div.innerHTML="<p test=''></p>";if(div.querySelectorAll("[test^='']").length){rbuggyQSA.push("[*^$]="+whitespace+"*(?:\"\"|'')")}div.innerHTML="<input type='hidden'/>";if(!div.querySelectorAll(":enabled").length){rbuggyQSA.push(":enabled",":disabled")}});rbuggyQSA=new 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props)){props[index]=value[index];specialEasing[index]=easing}}}else{specialEasing[name]=easing}}}jQuery.Animation=jQuery.extend(Animation,{tweener:function(props,callback){if(jQuery.isFunction(props)){callback=props;props=["*"]}else{props=props.split(" ")}var prop,index=0,length=props.length;for(;index<length;index++){prop=props[index];tweeners[prop]=tweeners[prop]||[];tweeners[prop].unshift(callback)}},prefilter:function(callback,prepend){if(prepend){animationPrefilters.unshift(callback)}else{animationPrefilters.push(callback)}}});function defaultPrefilter(elem,props,opts){var 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diff --git a/library/cpp/lwtrace/mon/static/js/jquery.treegrid.bootstrap3.js b/library/cpp/lwtrace/mon/static/js/jquery.treegrid.bootstrap3.js
index ac4a835205..8346d9d2f1 100644
--- a/library/cpp/lwtrace/mon/static/js/jquery.treegrid.bootstrap3.js
+++ b/library/cpp/lwtrace/mon/static/js/jquery.treegrid.bootstrap3.js
@@ -1,4 +1,4 @@
-$.extend($.fn.treegrid.defaults, {
-    expanderExpandedClass: 'glyphicon glyphicon-chevron-down',
-    expanderCollapsedClass: 'glyphicon glyphicon-chevron-right'
-});
+$.extend($.fn.treegrid.defaults, { 
+    expanderExpandedClass: 'glyphicon glyphicon-chevron-down', 
+    expanderCollapsedClass: 'glyphicon glyphicon-chevron-right' 
+}); 
diff --git a/library/cpp/lwtrace/mon/static/js/jquery.treegrid.min.js b/library/cpp/lwtrace/mon/static/js/jquery.treegrid.min.js
index 7b7566f323..345038c5ed 100644
--- a/library/cpp/lwtrace/mon/static/js/jquery.treegrid.min.js
+++ b/library/cpp/lwtrace/mon/static/js/jquery.treegrid.min.js
@@ -1,2 +1,2 @@
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\ No newline at end of file
+/*! jquery-treegrid 0.3.0 */ 
+!function(a){var b={initTree:function(b){var c=a.extend({},this.treegrid.defaults,b);return this.each(function(){var b=a(this);b.treegrid("setTreeContainer",a(this)),b.treegrid("setSettings",c),c.getRootNodes.apply(this,[a(this)]).treegrid("initNode",c),b.treegrid("getRootNodes").treegrid("render")})},initNode:function(b){return this.each(function(){var c=a(this);c.treegrid("setTreeContainer",b.getTreeGridContainer.apply(this)),c.treegrid("getChildNodes").treegrid("initNode",b),c.treegrid("initExpander").treegrid("initIndent").treegrid("initEvents").treegrid("initState").treegrid("initChangeEvent").treegrid("initSettingsEvents")})},initChangeEvent:function(){var b=a(this);return b.on("change",function(){var b=a(this);b.treegrid("render"),b.treegrid("getSetting","saveState")&&b.treegrid("saveState")}),b},initEvents:function(){var b=a(this);return b.on("collapse",function(){var b=a(this);b.removeClass("treegrid-expanded"),b.addClass("treegrid-collapsed")}),b.on("expand",function(){var 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c=a.grep(b.find("tr"),function(b){var c=a(b).attr("class"),d=/treegrid-([A-Za-z0-9_-]+)/,e=/treegrid-parent-([A-Za-z0-9_-]+)/;return d.test(c)&&!e.test(c)});return a(c)},getAllNodes:function(b){var c=a.grep(b.find("tr"),function(b){var c=a(b).attr("class"),d=/treegrid-([A-Za-z0-9_-]+)/;return d.test(c)});return a(c)},onCollapse:null,onExpand:null,onChange:null}}(jQuery); 
\ No newline at end of file
diff --git a/library/cpp/lwtrace/mon/static/js/jquery.url.min.js b/library/cpp/lwtrace/mon/static/js/jquery.url.min.js
index 8ac9051a2a..f3b029c799 100644
--- a/library/cpp/lwtrace/mon/static/js/jquery.url.min.js
+++ b/library/cpp/lwtrace/mon/static/js/jquery.url.min.js
@@ -1 +1 @@
-/*! js-url - v2.0.2 - 2015-09-17 */window.url=function(){function a(){}function b(a){return decodeURIComponent(a.replace(/\+/g," "))}function c(a,b){var c=a.charAt(0),d=b.split(c);return c===a?d:(a=parseInt(a.substring(1),10),d[0>a?d.length+a:a-1])}function d(a,c){var d=a.charAt(0),e=c.split("&"),f=[],g={},h=[],i=a.substring(1);for(var j in e)if(f=e[j].match(/(.*?)=(.*)/),f||(f=[e[j],e[j],""]),""!==f[1].replace(/\s/g,"")){if(f[2]=b(f[2]||""),i===f[1])return f[2];h=f[1].match(/(.*)\[([0-9]+)\]/),h?(g[h[1]]=g[h[1]]||[],g[h[1]][h[2]]=f[2]):g[f[1]]=f[2]}return d===a?g:g[i]}return function(b,e){var f,g={};if("tld?"===b)return a();if(e=e||window.location.toString(),!b)return e;if(b=b.toString(),f=e.match(/^mailto:([^\/].+)/))g.protocol="mailto",g.email=f[1];else{if((f=e.match(/(.*?)#(.*)/))&&(g.hash=f[2],e=f[1]),g.hash&&b.match(/^#/))return d(b,g.hash);if((f=e.match(/(.*?)\?(.*)/))&&(g.query=f[2],e=f[1]),g.query&&b.match(/^\?/))return d(b,g.query);if((f=e.match(/(.*?)\:?\/\/(.*)/))&&(g.protocol=f[1].toLowerCase(),e=f[2]),(f=e.match(/(.*?)(\/.*)/))&&(g.path=f[2],e=f[1]),g.path=(g.path||"").replace(/^([^\/])/,"/$1").replace(/\/$/,""),b.match(/^[\-0-9]+$/)&&(b=b.replace(/^([^\/])/,"/$1")),b.match(/^\//))return c(b,g.path.substring(1));if(f=c("/-1",g.path.substring(1)),f&&(f=f.match(/(.*?)\.(.*)/))&&(g.file=f[0],g.filename=f[1],g.fileext=f[2]),(f=e.match(/(.*)\:([0-9]+)$/))&&(g.port=f[2],e=f[1]),(f=e.match(/(.*?)@(.*)/))&&(g.auth=f[1],e=f[2]),g.auth&&(f=g.auth.match(/(.*)\:(.*)/),g.user=f?f[1]:g.auth,g.pass=f?f[2]:void 0),g.hostname=e.toLowerCase(),"."===b.charAt(0))return c(b,g.hostname);a()&&(f=g.hostname.match(a()),f&&(g.tld=f[3],g.domain=f[2]?f[2]+"."+f[3]:void 0,g.sub=f[1]||void 0)),g.port=g.port||("https"===g.protocol?"443":"80"),g.protocol=g.protocol||("443"===g.port?"https":"http")}return b in g?g[b]:"[]"===b?g:void 0}}(),"undefined"!=typeof jQuery&&jQuery.extend({url:function(a,b){return window.url(a,b)}});
+/*! js-url - v2.0.2 - 2015-09-17 */window.url=function(){function a(){}function b(a){return decodeURIComponent(a.replace(/\+/g," "))}function c(a,b){var c=a.charAt(0),d=b.split(c);return c===a?d:(a=parseInt(a.substring(1),10),d[0>a?d.length+a:a-1])}function d(a,c){var d=a.charAt(0),e=c.split("&"),f=[],g={},h=[],i=a.substring(1);for(var j in e)if(f=e[j].match(/(.*?)=(.*)/),f||(f=[e[j],e[j],""]),""!==f[1].replace(/\s/g,"")){if(f[2]=b(f[2]||""),i===f[1])return f[2];h=f[1].match(/(.*)\[([0-9]+)\]/),h?(g[h[1]]=g[h[1]]||[],g[h[1]][h[2]]=f[2]):g[f[1]]=f[2]}return d===a?g:g[i]}return function(b,e){var f,g={};if("tld?"===b)return a();if(e=e||window.location.toString(),!b)return e;if(b=b.toString(),f=e.match(/^mailto:([^\/].+)/))g.protocol="mailto",g.email=f[1];else{if((f=e.match(/(.*?)#(.*)/))&&(g.hash=f[2],e=f[1]),g.hash&&b.match(/^#/))return d(b,g.hash);if((f=e.match(/(.*?)\?(.*)/))&&(g.query=f[2],e=f[1]),g.query&&b.match(/^\?/))return d(b,g.query);if((f=e.match(/(.*?)\:?\/\/(.*)/))&&(g.protocol=f[1].toLowerCase(),e=f[2]),(f=e.match(/(.*?)(\/.*)/))&&(g.path=f[2],e=f[1]),g.path=(g.path||"").replace(/^([^\/])/,"/$1").replace(/\/$/,""),b.match(/^[\-0-9]+$/)&&(b=b.replace(/^([^\/])/,"/$1")),b.match(/^\//))return c(b,g.path.substring(1));if(f=c("/-1",g.path.substring(1)),f&&(f=f.match(/(.*?)\.(.*)/))&&(g.file=f[0],g.filename=f[1],g.fileext=f[2]),(f=e.match(/(.*)\:([0-9]+)$/))&&(g.port=f[2],e=f[1]),(f=e.match(/(.*?)@(.*)/))&&(g.auth=f[1],e=f[2]),g.auth&&(f=g.auth.match(/(.*)\:(.*)/),g.user=f?f[1]:g.auth,g.pass=f?f[2]:void 0),g.hostname=e.toLowerCase(),"."===b.charAt(0))return c(b,g.hostname);a()&&(f=g.hostname.match(a()),f&&(g.tld=f[3],g.domain=f[2]?f[2]+"."+f[3]:void 0,g.sub=f[1]||void 0)),g.port=g.port||("https"===g.protocol?"443":"80"),g.protocol=g.protocol||("443"===g.port?"https":"http")}return b in g?g[b]:"[]"===b?g:void 0}}(),"undefined"!=typeof jQuery&&jQuery.extend({url:function(a,b){return window.url(a,b)}}); 
diff --git a/library/cpp/lwtrace/mon/trace.sh b/library/cpp/lwtrace/mon/trace.sh
index 8414a9b0ca..0424e1548f 100755
--- a/library/cpp/lwtrace/mon/trace.sh
+++ b/library/cpp/lwtrace/mon/trace.sh
@@ -1,81 +1,81 @@
-#!/bin/sh -e
-# $Id: trace.sh 2313967 2016-05-24 12:52:38Z serxa $
-# $HeadURL: svn+ssh://arcadia.yandex.ru/arc/trunk/arcadia/library/cpp/lwtrace/mon/trace.sh $
-
-usage() {
-    if [ -n "$*" ]; then
-        echo "ERROR: $*" >&2
-    else
-        echo "Script for LWTrace tracing management" >&2
-    fi
-    echo "USAGE: `basename $0` COMMAND TRACEID HOST:PORT PARAM1=VALUE1 ..." >&2
-    echo "COMMANDS:" >&2
-    echo "     new  Start new tracing described by query from STDIN," >&2
-    echo "          uniquely named with TRACEID string," >&2
-    echo "          using HOST:PORT monitoring service." >&2
-    echo "          query can contain \$params that are substituted with corresponding values from cmdline" >&2
-    echo "          (alse \$\$ is replaced by \$, each param must be defined from cmdline)" >&2
-    echo "  delete  Stop existing tracing with specified name TRACEID," >&2
-    echo "          on HOST:PORT monitoring service." >&2
-    exit 1
-}
-
-COMMAND=$1
-ID="$2"
-IDENC="$(perl -MURI::Escape -e '$id = $ARGV[0]; $id=uri_escape($id); $id =~ s{[+%]}{-}g; print $id;' "$ID")"
-ADDRESS="$3"
-if [ "$COMMAND" = "--help" ] || [ -z "$*" ]; then usage; fi
-if [ -z "$ID" ]; then usage "TRACEID is not specified"; fi
-if [ -z "$ADDRESS" ]; then usage "HOST:PORT is not specified"; fi
-
-shift 3
-
-STATUS=0
-ERRFILE=/var/tmp/lwtrace.sh.$$
-
-error() {
-    echo "ERROR: $*" >&2
-    [ ! -e $ERRFILE ] || cat $ERRFILE >&2
-    exit 1
-}
-
-stop() { rm -f $ERRFILE; }
-trap stop INT ABRT EXIT
-
-case "$COMMAND" in
-
-    new)
-        QUERY="$(perl -e 'use MIME::Base64;
-                         local $/;
-                         $a = <STDIN>;
-                         for $arg (@ARGV) {
-                            ($k,$v) = split "=",$arg,2;
-                            $a =~ s{\$$k}{$v}g;
-                         }
-                         if ($a =~ /\$([A-Za-z_][\w_]*)/) {
-                            print STDERR "undefined param in lwtrace query: $1\n";
-                            exit 0
-                         }
-                         $a =~ s{\$\$}{\$}g;
-                         print encode_base64($a, "");
-                         ' "$@" 2>$ERRFILE)"
-        if [ -z "$QUERY" ]; then error "lwtrace query errors"; fi
-        wget --post-data="id=$IDENC&query=$QUERY" \
-            -O - http://$ADDRESS/trace?mode=new </dev/null 2>$ERRFILE || STATUS=$?
-        if [ $STATUS -ne 0 ]; then error "wget failure"; fi
-        ;;
-
-    delete)
-        wget --post-data="id=$IDENC" \
-            -O - http://$ADDRESS/trace?mode=delete </dev/null 2>$ERRFILE || STATUS=$?
-        if [ $STATUS -ne 0 ]; then error "wget failure"; fi
-        ;;
-
-    *)
-        echo "usage: `basename $0` new TRACEID ADDRESS < query.txt" >&2
-        echo "       `basename $0` delete TRACEID ADDRESS" >&2
-        exit 1
-        ;;
-
-esac
-echo "Done"
+#!/bin/sh -e 
+# $Id: trace.sh 2313967 2016-05-24 12:52:38Z serxa $ 
+# $HeadURL: svn+ssh://arcadia.yandex.ru/arc/trunk/arcadia/library/cpp/lwtrace/mon/trace.sh $ 
+ 
+usage() { 
+    if [ -n "$*" ]; then 
+        echo "ERROR: $*" >&2 
+    else 
+        echo "Script for LWTrace tracing management" >&2 
+    fi 
+    echo "USAGE: `basename $0` COMMAND TRACEID HOST:PORT PARAM1=VALUE1 ..." >&2 
+    echo "COMMANDS:" >&2 
+    echo "     new  Start new tracing described by query from STDIN," >&2 
+    echo "          uniquely named with TRACEID string," >&2 
+    echo "          using HOST:PORT monitoring service." >&2 
+    echo "          query can contain \$params that are substituted with corresponding values from cmdline" >&2 
+    echo "          (alse \$\$ is replaced by \$, each param must be defined from cmdline)" >&2 
+    echo "  delete  Stop existing tracing with specified name TRACEID," >&2 
+    echo "          on HOST:PORT monitoring service." >&2 
+    exit 1 
+} 
+ 
+COMMAND=$1 
+ID="$2" 
+IDENC="$(perl -MURI::Escape -e '$id = $ARGV[0]; $id=uri_escape($id); $id =~ s{[+%]}{-}g; print $id;' "$ID")" 
+ADDRESS="$3" 
+if [ "$COMMAND" = "--help" ] || [ -z "$*" ]; then usage; fi 
+if [ -z "$ID" ]; then usage "TRACEID is not specified"; fi 
+if [ -z "$ADDRESS" ]; then usage "HOST:PORT is not specified"; fi 
+ 
+shift 3 
+ 
+STATUS=0 
+ERRFILE=/var/tmp/lwtrace.sh.$$ 
+ 
+error() { 
+    echo "ERROR: $*" >&2 
+    [ ! -e $ERRFILE ] || cat $ERRFILE >&2 
+    exit 1 
+} 
+ 
+stop() { rm -f $ERRFILE; } 
+trap stop INT ABRT EXIT 
+ 
+case "$COMMAND" in 
+ 
+    new) 
+        QUERY="$(perl -e 'use MIME::Base64; 
+                         local $/; 
+                         $a = <STDIN>; 
+                         for $arg (@ARGV) { 
+                            ($k,$v) = split "=",$arg,2; 
+                            $a =~ s{\$$k}{$v}g; 
+                         } 
+                         if ($a =~ /\$([A-Za-z_][\w_]*)/) { 
+                            print STDERR "undefined param in lwtrace query: $1\n"; 
+                            exit 0 
+                         } 
+                         $a =~ s{\$\$}{\$}g; 
+                         print encode_base64($a, ""); 
+                         ' "$@" 2>$ERRFILE)" 
+        if [ -z "$QUERY" ]; then error "lwtrace query errors"; fi 
+        wget --post-data="id=$IDENC&query=$QUERY" \ 
+            -O - http://$ADDRESS/trace?mode=new </dev/null 2>$ERRFILE || STATUS=$? 
+        if [ $STATUS -ne 0 ]; then error "wget failure"; fi 
+        ;; 
+ 
+    delete) 
+        wget --post-data="id=$IDENC" \ 
+            -O - http://$ADDRESS/trace?mode=delete </dev/null 2>$ERRFILE || STATUS=$? 
+        if [ $STATUS -ne 0 ]; then error "wget failure"; fi 
+        ;; 
+ 
+    *) 
+        echo "usage: `basename $0` new TRACEID ADDRESS < query.txt" >&2 
+        echo "       `basename $0` delete TRACEID ADDRESS" >&2 
+        exit 1 
+        ;; 
+ 
+esac 
+echo "Done" 
diff --git a/library/cpp/lwtrace/mon/ya.make b/library/cpp/lwtrace/mon/ya.make
index bdcb315754..6c8c11887a 100644
--- a/library/cpp/lwtrace/mon/ya.make
+++ b/library/cpp/lwtrace/mon/ya.make
@@ -1,55 +1,55 @@
-LIBRARY()
-
+LIBRARY() 
+ 
 OWNER(serxa g:kikimr)
-
-RESOURCE(
-    static/common.css lwtrace/mon/static/common.css
-    static/common.js lwtrace/mon/static/common.js
-    static/css/bootstrap.min.css lwtrace/mon/static/css/bootstrap.min.css
-    static/css/d3-gantt.css lwtrace/mon/static/css/d3-gantt.css
-    static/css/jquery.treegrid.css lwtrace/mon/static/css/jquery.treegrid.css
-    static/analytics.css lwtrace/mon/static/analytics.css
-    static/analytics.flot.html lwtrace/mon/static/analytics.flot.html
-    static/analytics.gantt.html lwtrace/mon/static/analytics.gantt.html
-    static/analytics.header.html lwtrace/mon/static/analytics.header.html
-    static/analytics.js lwtrace/mon/static/analytics.js
-    static/fonts/glyphicons-halflings-regular.eot lwtrace/mon/static/fonts/glyphicons-halflings-regular.eot
-    static/fonts/glyphicons-halflings-regular.svg lwtrace/mon/static/fonts/glyphicons-halflings-regular.svg
-    static/fonts/glyphicons-halflings-regular.ttf lwtrace/mon/static/fonts/glyphicons-halflings-regular.ttf
-    static/fonts/glyphicons-halflings-regular.woff2 lwtrace/mon/static/fonts/glyphicons-halflings-regular.woff2
-    static/fonts/glyphicons-halflings-regular.woff lwtrace/mon/static/fonts/glyphicons-halflings-regular.woff
-    static/footer.html lwtrace/mon/static/footer.html
-    static/header.html lwtrace/mon/static/header.html
-    static/img/collapse.png lwtrace/mon/static/img/collapse.png
-    static/img/expand.png lwtrace/mon/static/img/expand.png
-    static/img/file.png lwtrace/mon/static/img/file.png
-    static/img/folder.png lwtrace/mon/static/img/folder.png
-    static/js/bootstrap.min.js lwtrace/mon/static/js/bootstrap.min.js
-    static/js/d3.v4.min.js lwtrace/mon/static/js/d3.v4.min.js
-    static/js/d3-gantt.js lwtrace/mon/static/js/d3-gantt.js
-    static/js/d3-tip-0.8.0-alpha.1.js lwtrace/mon/static/js/d3-tip-0.8.0-alpha.1.js
-    static/js/filesaver.min.js lwtrace/mon/static/js/filesaver.min.js
-    static/js/jquery.flot.extents.js lwtrace/mon/static/js/jquery.flot.extents.js
-    static/js/jquery.flot.min.js lwtrace/mon/static/js/jquery.flot.min.js
-    static/js/jquery.flot.navigate.min.js lwtrace/mon/static/js/jquery.flot.navigate.min.js
-    static/js/jquery.flot.selection.min.js lwtrace/mon/static/js/jquery.flot.selection.min.js
-    static/js/jquery.min.js lwtrace/mon/static/js/jquery.min.js
-    static/js/jquery.treegrid.bootstrap3.js lwtrace/mon/static/js/jquery.treegrid.bootstrap3.js
-    static/js/jquery.treegrid.min.js lwtrace/mon/static/js/jquery.treegrid.min.js
-    static/js/jquery.url.min.js lwtrace/mon/static/js/jquery.url.min.js
-)
-
-SRCS(
-    mon_lwtrace.cpp
-)
-
-PEERDIR(
+ 
+RESOURCE( 
+    static/common.css lwtrace/mon/static/common.css 
+    static/common.js lwtrace/mon/static/common.js 
+    static/css/bootstrap.min.css lwtrace/mon/static/css/bootstrap.min.css 
+    static/css/d3-gantt.css lwtrace/mon/static/css/d3-gantt.css 
+    static/css/jquery.treegrid.css lwtrace/mon/static/css/jquery.treegrid.css 
+    static/analytics.css lwtrace/mon/static/analytics.css 
+    static/analytics.flot.html lwtrace/mon/static/analytics.flot.html 
+    static/analytics.gantt.html lwtrace/mon/static/analytics.gantt.html 
+    static/analytics.header.html lwtrace/mon/static/analytics.header.html 
+    static/analytics.js lwtrace/mon/static/analytics.js 
+    static/fonts/glyphicons-halflings-regular.eot lwtrace/mon/static/fonts/glyphicons-halflings-regular.eot 
+    static/fonts/glyphicons-halflings-regular.svg lwtrace/mon/static/fonts/glyphicons-halflings-regular.svg 
+    static/fonts/glyphicons-halflings-regular.ttf lwtrace/mon/static/fonts/glyphicons-halflings-regular.ttf 
+    static/fonts/glyphicons-halflings-regular.woff2 lwtrace/mon/static/fonts/glyphicons-halflings-regular.woff2 
+    static/fonts/glyphicons-halflings-regular.woff lwtrace/mon/static/fonts/glyphicons-halflings-regular.woff 
+    static/footer.html lwtrace/mon/static/footer.html 
+    static/header.html lwtrace/mon/static/header.html 
+    static/img/collapse.png lwtrace/mon/static/img/collapse.png 
+    static/img/expand.png lwtrace/mon/static/img/expand.png 
+    static/img/file.png lwtrace/mon/static/img/file.png 
+    static/img/folder.png lwtrace/mon/static/img/folder.png 
+    static/js/bootstrap.min.js lwtrace/mon/static/js/bootstrap.min.js 
+    static/js/d3.v4.min.js lwtrace/mon/static/js/d3.v4.min.js 
+    static/js/d3-gantt.js lwtrace/mon/static/js/d3-gantt.js 
+    static/js/d3-tip-0.8.0-alpha.1.js lwtrace/mon/static/js/d3-tip-0.8.0-alpha.1.js 
+    static/js/filesaver.min.js lwtrace/mon/static/js/filesaver.min.js 
+    static/js/jquery.flot.extents.js lwtrace/mon/static/js/jquery.flot.extents.js 
+    static/js/jquery.flot.min.js lwtrace/mon/static/js/jquery.flot.min.js 
+    static/js/jquery.flot.navigate.min.js lwtrace/mon/static/js/jquery.flot.navigate.min.js 
+    static/js/jquery.flot.selection.min.js lwtrace/mon/static/js/jquery.flot.selection.min.js 
+    static/js/jquery.min.js lwtrace/mon/static/js/jquery.min.js 
+    static/js/jquery.treegrid.bootstrap3.js lwtrace/mon/static/js/jquery.treegrid.bootstrap3.js 
+    static/js/jquery.treegrid.min.js lwtrace/mon/static/js/jquery.treegrid.min.js 
+    static/js/jquery.url.min.js lwtrace/mon/static/js/jquery.url.min.js 
+) 
+ 
+SRCS( 
+    mon_lwtrace.cpp 
+) 
+ 
+PEERDIR( 
     library/cpp/html/pcdata
     library/cpp/lwtrace
-    library/cpp/lwtrace/mon/analytics
+    library/cpp/lwtrace/mon/analytics 
     library/cpp/monlib/dynamic_counters
     library/cpp/resource
     library/cpp/string_utils/base64
-)
-
-END()
+) 
+ 
+END() 
diff --git a/library/cpp/lwtrace/perf.cpp b/library/cpp/lwtrace/perf.cpp
index 03b68586ea..b3f109c1be 100644
--- a/library/cpp/lwtrace/perf.cpp
+++ b/library/cpp/lwtrace/perf.cpp
@@ -1,84 +1,84 @@
-#include "perf.h"
-
+#include "perf.h" 
+ 
 #include "probes.h"
 
-#include <util/system/datetime.h>
-#include <util/system/hp_timer.h>
-
-namespace NLWTrace {
-    LWTRACE_USING(LWTRACE_INTERNAL_PROVIDER);
-
-    TCpuTracker::TCpuTracker()
-        : MinReportPeriod(NHPTimer::GetCyclesPerSecond())
-    {
-        ResetStats();
-    }
-
-    void TCpuTracker::Enter() {
-        LastTs = GetCycleCount();
-    }
-
-    void TCpuTracker::Exit(const TProbe* probe) {
-        ui64 exitTs = GetCycleCount();
-        if (exitTs < LastTs) {
-            return; // probably TSC was reset
-        }
-        ui64 cycles = exitTs - LastTs;
-        LastTs = exitTs;
-
-        AddStats(probe, cycles);
-    }
-
-    void TCpuTracker::AddStats(const TProbe* probe, ui64 cycles) {
-        if (MaxCycles < cycles) {
-            MaxProbe = probe;
-            MaxCycles = cycles;
-        }
-        if (MinCycles > cycles) {
-            MinCycles = cycles;
-        }
-        ProbeCycles += cycles;
-        Count++;
-
-        if (LastTs - LastReportTs > MinReportPeriod) {
-            Report();
-        }
-    }
-
-    void TCpuTracker::ResetStats() {
-        MaxCycles = 0;
-        MaxProbe = nullptr;
-        MinCycles = ui64(-1);
-        ProbeCycles = 0;
-        Count = 0;
-    }
-
-    void TCpuTracker::Report() {
-        if (!Reporting) {
-            Reporting = true;
-            ReportNotReentrant();
-            Reporting = false;
-        }
-    }
-
-    void TCpuTracker::ReportNotReentrant() {
-        if (LastReportTs && Count > 0 && LastTs > LastReportTs) {
-            ui64 reportPeriod = LastTs - LastReportTs;
-            double share = double(ProbeCycles) / reportPeriod;
-            double minMs = MilliSeconds(MinCycles);
-            double maxMs = MilliSeconds(MaxCycles);
-            double avgMs = MilliSeconds(ProbeCycles) / Count;
-            LastReportTs = LastTs;
-            ResetStats();
-            LWPROBE(PerfReport, share, minMs, maxMs, avgMs);
-        } else {
-            LastReportTs = LastTs;
-            ResetStats();
-        }
-    }
-
-    double TCpuTracker::MilliSeconds(ui64 cycles) {
-        return NHPTimer::GetSeconds(cycles) * 1000.0;
-    }
-
-}
+#include <util/system/datetime.h> 
+#include <util/system/hp_timer.h> 
+ 
+namespace NLWTrace { 
+    LWTRACE_USING(LWTRACE_INTERNAL_PROVIDER); 
+ 
+    TCpuTracker::TCpuTracker() 
+        : MinReportPeriod(NHPTimer::GetCyclesPerSecond()) 
+    { 
+        ResetStats(); 
+    } 
+ 
+    void TCpuTracker::Enter() { 
+        LastTs = GetCycleCount(); 
+    } 
+ 
+    void TCpuTracker::Exit(const TProbe* probe) { 
+        ui64 exitTs = GetCycleCount(); 
+        if (exitTs < LastTs) { 
+            return; // probably TSC was reset 
+        } 
+        ui64 cycles = exitTs - LastTs; 
+        LastTs = exitTs; 
+ 
+        AddStats(probe, cycles); 
+    } 
+ 
+    void TCpuTracker::AddStats(const TProbe* probe, ui64 cycles) { 
+        if (MaxCycles < cycles) { 
+            MaxProbe = probe; 
+            MaxCycles = cycles; 
+        } 
+        if (MinCycles > cycles) { 
+            MinCycles = cycles; 
+        } 
+        ProbeCycles += cycles; 
+        Count++; 
+ 
+        if (LastTs - LastReportTs > MinReportPeriod) { 
+            Report(); 
+        } 
+    } 
+ 
+    void TCpuTracker::ResetStats() { 
+        MaxCycles = 0; 
+        MaxProbe = nullptr; 
+        MinCycles = ui64(-1); 
+        ProbeCycles = 0; 
+        Count = 0; 
+    } 
+ 
+    void TCpuTracker::Report() { 
+        if (!Reporting) { 
+            Reporting = true; 
+            ReportNotReentrant(); 
+            Reporting = false; 
+        } 
+    } 
+ 
+    void TCpuTracker::ReportNotReentrant() { 
+        if (LastReportTs && Count > 0 && LastTs > LastReportTs) { 
+            ui64 reportPeriod = LastTs - LastReportTs; 
+            double share = double(ProbeCycles) / reportPeriod; 
+            double minMs = MilliSeconds(MinCycles); 
+            double maxMs = MilliSeconds(MaxCycles); 
+            double avgMs = MilliSeconds(ProbeCycles) / Count; 
+            LastReportTs = LastTs; 
+            ResetStats(); 
+            LWPROBE(PerfReport, share, minMs, maxMs, avgMs); 
+        } else { 
+            LastReportTs = LastTs; 
+            ResetStats(); 
+        } 
+    } 
+ 
+    double TCpuTracker::MilliSeconds(ui64 cycles) { 
+        return NHPTimer::GetSeconds(cycles) * 1000.0; 
+    } 
+ 
+} 
diff --git a/library/cpp/lwtrace/perf.h b/library/cpp/lwtrace/perf.h
index d535247196..03564eeb3f 100644
--- a/library/cpp/lwtrace/perf.h
+++ b/library/cpp/lwtrace/perf.h
@@ -1,63 +1,63 @@
-#pragma once
-
-#include <util/system/types.h>
-#include <util/thread/singleton.h>
-
-namespace NLWTrace {
-    struct TProbe;
-
-    class TCpuTracker {
-    private:
-        const ui64 MinReportPeriod;
-
-        // State
-        bool Reporting = false;
-        ui64 LastTs = 0;
-        ui64 LastReportTs = 0;
-
-        // Statistics
-        ui64 MaxCycles;
-        const TProbe* MaxProbe;
-        ui64 MinCycles;
-        ui64 ProbeCycles;
-        ui64 Count;
-
-    public:
-        TCpuTracker();
-        void Enter();
-        void Exit(const TProbe* Probe);
-        static TCpuTracker* TlsInstance() {
-            struct TCpuTrackerkHolder {
-                TCpuTracker Tracker;
-            };
-            return &FastTlsSingletonWithPriority<TCpuTrackerkHolder, 4>()->Tracker;
-        }
-
-    private:
-        void AddStats(const TProbe* probe, ui64 cycles);
-        void ResetStats();
-        void Report();
-        void ReportNotReentrant();
-        static double MilliSeconds(ui64 cycles);
-    };
-
-    class TScopedThreadCpuTracker {
-    private:
-        const TProbe* Probe;
-        TCpuTracker* Tracker;
-
-    public:
-        template <class T>
-        explicit TScopedThreadCpuTracker(const T& probe)
-            : Probe(&probe.Probe)
-            , Tracker(TCpuTracker::TlsInstance())
-        {
-            Tracker->Enter();
-        }
-
-        ~TScopedThreadCpuTracker() {
-            Tracker->Exit(Probe);
-        }
-    };
-
-}
+#pragma once 
+ 
+#include <util/system/types.h> 
+#include <util/thread/singleton.h> 
+ 
+namespace NLWTrace { 
+    struct TProbe; 
+ 
+    class TCpuTracker { 
+    private: 
+        const ui64 MinReportPeriod; 
+ 
+        // State 
+        bool Reporting = false; 
+        ui64 LastTs = 0; 
+        ui64 LastReportTs = 0; 
+ 
+        // Statistics 
+        ui64 MaxCycles; 
+        const TProbe* MaxProbe; 
+        ui64 MinCycles; 
+        ui64 ProbeCycles; 
+        ui64 Count; 
+ 
+    public: 
+        TCpuTracker(); 
+        void Enter(); 
+        void Exit(const TProbe* Probe); 
+        static TCpuTracker* TlsInstance() { 
+            struct TCpuTrackerkHolder { 
+                TCpuTracker Tracker; 
+            }; 
+            return &FastTlsSingletonWithPriority<TCpuTrackerkHolder, 4>()->Tracker; 
+        } 
+ 
+    private: 
+        void AddStats(const TProbe* probe, ui64 cycles); 
+        void ResetStats(); 
+        void Report(); 
+        void ReportNotReentrant(); 
+        static double MilliSeconds(ui64 cycles); 
+    }; 
+ 
+    class TScopedThreadCpuTracker { 
+    private: 
+        const TProbe* Probe; 
+        TCpuTracker* Tracker; 
+ 
+    public: 
+        template <class T> 
+        explicit TScopedThreadCpuTracker(const T& probe) 
+            : Probe(&probe.Probe) 
+            , Tracker(TCpuTracker::TlsInstance()) 
+        { 
+            Tracker->Enter(); 
+        } 
+ 
+        ~TScopedThreadCpuTracker() { 
+            Tracker->Exit(Probe); 
+        } 
+    }; 
+ 
+} 
diff --git a/library/cpp/lwtrace/preprocessor.h b/library/cpp/lwtrace/preprocessor.h
index 40865467b2..abc21870d6 100644
--- a/library/cpp/lwtrace/preprocessor.h
+++ b/library/cpp/lwtrace/preprocessor.h
@@ -1,8 +1,8 @@
-#pragma once
-
-#include "check.h"
-#include "perf.h"
-#include "symbol.h"
+#pragma once 
+ 
+#include "check.h" 
+#include "perf.h" 
+#include "symbol.h" 
 
 #include <util/generic/hide_ptr.h>
 #include <util/system/platform.h>
@@ -15,281 +15,281 @@
 #endif // LWTRACE_DISABLE
 #endif // _win_
 
-// Maximum number of executors that can be attached to a probe
-#define LWTRACE_MAX_ACTIONS 100
-
-// Maximum number of groups that can be assigned to a probe
-#define LWTRACE_MAX_GROUPS 100
-
-#ifndef LWTRACE_DISABLE
-
-/*
- *  WARNING: All macros define in this header must be considered as implementation details and should NOT be used directly
- *  WARNING: See lwtrace/all.h for macros that represent a user interface of lwtrace library
- *
- */
-
-// Use for code generation to handle parameter types. USAGE:
-// 1. #define FOREACH_PARAMTYPE_MACRO(n, t, v, your_p1, your_p2) your code snippet
-// 2. FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO, your_p1_value, your_p1_value)
-//    FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO, your_p1_another_value, your_p1_another_value)
-// 3. #undef FOREACH_PARAMTYPE_MACRO
+// Maximum number of executors that can be attached to a probe 
+#define LWTRACE_MAX_ACTIONS 100 
+ 
+// Maximum number of groups that can be assigned to a probe 
+#define LWTRACE_MAX_GROUPS 100 
+ 
+#ifndef LWTRACE_DISABLE 
+ 
+/* 
+ *  WARNING: All macros define in this header must be considered as implementation details and should NOT be used directly 
+ *  WARNING: See lwtrace/all.h for macros that represent a user interface of lwtrace library 
+ * 
+ */ 
+ 
+// Use for code generation to handle parameter types. USAGE: 
+// 1. #define FOREACH_PARAMTYPE_MACRO(n, t, v, your_p1, your_p2) your code snippet 
+// 2. FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO, your_p1_value, your_p1_value) 
+//    FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO, your_p1_another_value, your_p1_another_value) 
+// 3. #undef FOREACH_PARAMTYPE_MACRO 
 // Type order matters!
-#define FOREACH_PARAMTYPE(MACRO, ...)                         \
-    MACRO("i64", i64, I64, ##__VA_ARGS__)                     \
-    MACRO("ui64", ui64, Ui64, ##__VA_ARGS__)                  \
-    MACRO("double", double, Double, ##__VA_ARGS__)            \
-    MACRO("string", TString, Str, ##__VA_ARGS__)              \
-    MACRO("symbol", NLWTrace::TSymbol, Symbol, ##__VA_ARGS__) \
-    MACRO("check", NLWTrace::TCheck, Check, ##__VA_ARGS__)    \
-    /**/
-
-// Used with FOREACH_PARAMTYPE to handle TNil parameter type also
-#define FOR_NIL_PARAMTYPE(MACRO, ...)     \
-    MACRO(NULL, TNil, Nil, ##__VA_ARGS__) \
-    /**/
-
+#define FOREACH_PARAMTYPE(MACRO, ...)                         \ 
+    MACRO("i64", i64, I64, ##__VA_ARGS__)                     \ 
+    MACRO("ui64", ui64, Ui64, ##__VA_ARGS__)                  \ 
+    MACRO("double", double, Double, ##__VA_ARGS__)            \ 
+    MACRO("string", TString, Str, ##__VA_ARGS__)              \ 
+    MACRO("symbol", NLWTrace::TSymbol, Symbol, ##__VA_ARGS__) \ 
+    MACRO("check", NLWTrace::TCheck, Check, ##__VA_ARGS__)    \ 
+    /**/ 
+ 
+// Used with FOREACH_PARAMTYPE to handle TNil parameter type also 
+#define FOR_NIL_PARAMTYPE(MACRO, ...)     \ 
+    MACRO(NULL, TNil, Nil, ##__VA_ARGS__) \ 
+    /**/ 
+ 
 // Used for math statements
-#define FOR_MATH_PARAMTYPE(MACRO, ...)                     \
-    MACRO("i64", i64, I64, ##__VA_ARGS__)                  \
-    MACRO("ui64", ui64, Ui64, ##__VA_ARGS__)               \
-    MACRO("check", NLWTrace::TCheck, Check, ##__VA_ARGS__) \
+#define FOR_MATH_PARAMTYPE(MACRO, ...)                     \ 
+    MACRO("i64", i64, I64, ##__VA_ARGS__)                  \ 
+    MACRO("ui64", ui64, Ui64, ##__VA_ARGS__)               \ 
+    MACRO("check", NLWTrace::TCheck, Check, ##__VA_ARGS__) \ 
     /**/
 
-// Use for code generation to handle parameter lists
+// Use for code generation to handle parameter lists 
 // NOTE: this is the only place to change if more parameters needed
-#define FOREACH_PARAMNUM(MACRO, ...) \
-    MACRO(0, ##__VA_ARGS__)          \
-    MACRO(1, ##__VA_ARGS__)          \
-    MACRO(2, ##__VA_ARGS__)          \
-    MACRO(3, ##__VA_ARGS__)          \
-    MACRO(4, ##__VA_ARGS__)          \
-    MACRO(5, ##__VA_ARGS__)          \
-    MACRO(6, ##__VA_ARGS__)          \
-    MACRO(7, ##__VA_ARGS__)          \
-    MACRO(8, ##__VA_ARGS__)          \
-    MACRO(9, ##__VA_ARGS__)          \
-    MACRO(10, ##__VA_ARGS__)         \
-    MACRO(11, ##__VA_ARGS__)         \
-    MACRO(12, ##__VA_ARGS__)         \
-    MACRO(13, ##__VA_ARGS__)         \
-    MACRO(14, ##__VA_ARGS__)         \
-    MACRO(15, ##__VA_ARGS__)         \
-    MACRO(16, ##__VA_ARGS__)         \
-    /**/
-
+#define FOREACH_PARAMNUM(MACRO, ...) \ 
+    MACRO(0, ##__VA_ARGS__)          \ 
+    MACRO(1, ##__VA_ARGS__)          \ 
+    MACRO(2, ##__VA_ARGS__)          \ 
+    MACRO(3, ##__VA_ARGS__)          \ 
+    MACRO(4, ##__VA_ARGS__)          \ 
+    MACRO(5, ##__VA_ARGS__)          \ 
+    MACRO(6, ##__VA_ARGS__)          \ 
+    MACRO(7, ##__VA_ARGS__)          \ 
+    MACRO(8, ##__VA_ARGS__)          \ 
+    MACRO(9, ##__VA_ARGS__)          \ 
+    MACRO(10, ##__VA_ARGS__)         \ 
+    MACRO(11, ##__VA_ARGS__)         \ 
+    MACRO(12, ##__VA_ARGS__)         \ 
+    MACRO(13, ##__VA_ARGS__)         \ 
+    MACRO(14, ##__VA_ARGS__)         \ 
+    MACRO(15, ##__VA_ARGS__)         \ 
+    MACRO(16, ##__VA_ARGS__)         \ 
+    /**/ 
+ 
 #define FOREACH_LEFT_TYPE(MACRO, ...) \
-    MACRO(__VA_ARGS__, OT_VARIABLE)   \
-    MACRO(__VA_ARGS__, OT_LITERAL)    \
-    MACRO(__VA_ARGS__, OT_PARAMETER)  \
+    MACRO(__VA_ARGS__, OT_VARIABLE)   \ 
+    MACRO(__VA_ARGS__, OT_LITERAL)    \ 
+    MACRO(__VA_ARGS__, OT_PARAMETER)  \ 
     /**/
 
 #define FOREACH_RIGHT_TYPE(MACRO, ...) \
-    MACRO(__VA_ARGS__, OT_VARIABLE)    \
-    MACRO(__VA_ARGS__, OT_LITERAL)     \
-    MACRO(__VA_ARGS__, OT_PARAMETER)   \
+    MACRO(__VA_ARGS__, OT_VARIABLE)    \ 
+    MACRO(__VA_ARGS__, OT_LITERAL)     \ 
+    MACRO(__VA_ARGS__, OT_PARAMETER)   \ 
     /**/
 
 #define FOREACH_DESTINATION_TYPE(MACRO, ...) \
-    MACRO(__VA_ARGS__, OT_VARIABLE)          \
+    MACRO(__VA_ARGS__, OT_VARIABLE)          \ 
     /**/
 
-// Auxilary macros
-#define LWTRACE_EXPAND(x) x
-#define LWTRACE_EAT(...)
-
-// Eat last/first comma trick
-#define LWTRACE_COMMA(bit) LWTRACE_COMMA_##bit()
-#define LWTRACE_COMMA_0()
-#define LWTRACE_COMMA_1() ,
-
-// Macros to pack/unpack tuples, e.g. (x,y,z)
-#define LWTRACE_UNROLL(...) __VA_ARGS__
-#define LWTRACE_ENROLL(...) (__VA_ARGS__)
-
-// Param types list handling macros
-#define LWTRACE_TEMPLATE_PARAMS_I(i) (1) class TP##i = TNil LWTRACE_COMMA
-#define LWTRACE_TEMPLATE_PARAMS LWTRACE_EXPAND(LWTRACE_EAT FOREACH_PARAMNUM(LWTRACE_TEMPLATE_PARAMS_I)(0))
-#define LWTRACE_TEMPLATE_PARAMS_NODEF_I(i) (1) class TP##i LWTRACE_COMMA
-#define LWTRACE_TEMPLATE_PARAMS_NODEF LWTRACE_EXPAND(LWTRACE_EAT FOREACH_PARAMNUM(LWTRACE_TEMPLATE_PARAMS_NODEF_I)(0))
-#define LWTRACE_TEMPLATE_ARGS_I(i) (1) TP##i LWTRACE_COMMA
-#define LWTRACE_TEMPLATE_ARGS LWTRACE_EXPAND(LWTRACE_EAT FOREACH_PARAMNUM(LWTRACE_TEMPLATE_ARGS_I)(0))
+// Auxilary macros 
+#define LWTRACE_EXPAND(x) x 
+#define LWTRACE_EAT(...) 
+ 
+// Eat last/first comma trick 
+#define LWTRACE_COMMA(bit) LWTRACE_COMMA_##bit() 
+#define LWTRACE_COMMA_0() 
+#define LWTRACE_COMMA_1() , 
+ 
+// Macros to pack/unpack tuples, e.g. (x,y,z) 
+#define LWTRACE_UNROLL(...) __VA_ARGS__ 
+#define LWTRACE_ENROLL(...) (__VA_ARGS__) 
+ 
+// Param types list handling macros 
+#define LWTRACE_TEMPLATE_PARAMS_I(i) (1) class TP##i = TNil LWTRACE_COMMA 
+#define LWTRACE_TEMPLATE_PARAMS LWTRACE_EXPAND(LWTRACE_EAT FOREACH_PARAMNUM(LWTRACE_TEMPLATE_PARAMS_I)(0)) 
+#define LWTRACE_TEMPLATE_PARAMS_NODEF_I(i) (1) class TP##i LWTRACE_COMMA 
+#define LWTRACE_TEMPLATE_PARAMS_NODEF LWTRACE_EXPAND(LWTRACE_EAT FOREACH_PARAMNUM(LWTRACE_TEMPLATE_PARAMS_NODEF_I)(0)) 
+#define LWTRACE_TEMPLATE_ARGS_I(i) (1) TP##i LWTRACE_COMMA 
+#define LWTRACE_TEMPLATE_ARGS LWTRACE_EXPAND(LWTRACE_EAT FOREACH_PARAMNUM(LWTRACE_TEMPLATE_ARGS_I)(0)) 
 #define LWTRACE_FUNCTION_PARAMS_I(i) (1) typename ::NLWTrace::TParamTraits<TP##i>::TFuncParam p##i = ERROR_not_enough_parameters() LWTRACE_COMMA
-#define LWTRACE_FUNCTION_PARAMS LWTRACE_EXPAND(LWTRACE_EAT FOREACH_PARAMNUM(LWTRACE_FUNCTION_PARAMS_I)(0))
+#define LWTRACE_FUNCTION_PARAMS LWTRACE_EXPAND(LWTRACE_EAT FOREACH_PARAMNUM(LWTRACE_FUNCTION_PARAMS_I)(0)) 
 #define LWTRACE_PREPARE_PARAMS_I(i, params) params.Param[i].template CopyConstruct<typename ::NLWTrace::TParamTraits<TP##i>::TStoreType>(::NLWTrace::TParamTraits<TP##i>::ToStoreType(p##i));
-#define LWTRACE_PREPARE_PARAMS(params)                     \
-    do {                                                   \
-        FOREACH_PARAMNUM(LWTRACE_PREPARE_PARAMS_I, params) \
-    } while (false)
-#define LWTRACE_COUNT_PARAMS_I(i) +(std::is_same<TP##i, ::NLWTrace::TNil>::value ? 0 : 1)
-#define LWTRACE_COUNT_PARAMS (0 FOREACH_PARAMNUM(LWTRACE_COUNT_PARAMS_I))
-#define LWTRACE_MAX_PARAMS_I(i) +1
-#define LWTRACE_MAX_PARAMS (0 FOREACH_PARAMNUM(LWTRACE_MAX_PARAMS_I))
-
-// Determine maximum sizeof(t) over all supported types
-#define LWTRACE_MAX_PARAM_SIZE_TA_TAIL_I(n, t, v) v,
-#define LWTRACE_MAX_PARAM_SIZE_TA_TAIL                  \
-    FOREACH_PARAMTYPE(LWTRACE_MAX_PARAM_SIZE_TA_TAIL_I) \
-    0
-#define LWTRACE_MAX_PARAM_SIZE_TP_I(n, t, v) , size_t v = 0
-#define LWTRACE_MAX_PARAM_SIZE_TP size_t Head = 0 FOREACH_PARAMTYPE(LWTRACE_MAX_PARAM_SIZE_TP_I)
-#define LWTRACE_MAX_PARAM_SIZE_TA_I(n, t, v) , sizeof(t)
-#define LWTRACE_MAX_PARAM_SIZE_TA 0 FOREACH_PARAMTYPE(LWTRACE_MAX_PARAM_SIZE_TA_I)
-#define LWTRACE_MAX_PARAM_SIZE ::NLWTrace::TMaxParamSize<LWTRACE_MAX_PARAM_SIZE_TA>::Result
-
-namespace NLWTrace {
-    template <LWTRACE_MAX_PARAM_SIZE_TP>
-    struct TMaxParamSize {
-        static const size_t Tail = TMaxParamSize<LWTRACE_MAX_PARAM_SIZE_TA_TAIL>::Result;
-        static const size_t Result = (Head > Tail ? Head : Tail);
-    };
-
-    template <>
-    struct TMaxParamSize<> {
-        static const size_t Result = 0;
-    };
-
-}
-
-// Define stuff that is needed to register probes before main()
-#define LWTRACE_REGISTER_PROBES(provider)                                                           \
-    namespace LWTRACE_GET_NAMESPACE(provider) {                                                     \
-        struct TInitLWTrace##provider {                                                             \
-            TInitLWTrace##provider() {                                                              \
-                Singleton<NLWTrace::TProbeRegistry>()->AddProbesList(LWTRACE_GET_PROBES(provider)); \
-            }                                                                                       \
-            /* This may not be in anonymous namespace because otherwise */                          \
-            /* it is called twice when .so loaded twice */                                          \
-        }* InitLWTrace##provider = Singleton<TInitLWTrace##provider>();                             \
-    }                                                                                               \
-    /**/
-
-// Macro for TSignature POD structure static initialization
-#define LWTRACE_SIGNATURE_CTOR(types, names)                                                                          \
-    {                                                                                                                 \
-        /* ParamTypes */ ::NLWTrace::TUserSignature<LWTRACE_EXPAND(LWTRACE_UNROLL types)>::ParamTypes,                \
-            /* ParamNames */ {LWTRACE_EXPAND(LWTRACE_UNROLL names)},                                                  \
-            /* ParamCount */ ::NLWTrace::TUserSignature<LWTRACE_EXPAND(LWTRACE_UNROLL types)>::ParamCount,            \
-            /* SerializeParams */ &::NLWTrace::TUserSignature<LWTRACE_EXPAND(LWTRACE_UNROLL types)>::SerializeParams, \
-            /* CloneParams */ &::NLWTrace::TUserSignature<LWTRACE_EXPAND(LWTRACE_UNROLL types)>::CloneParams,         \
+#define LWTRACE_PREPARE_PARAMS(params)                     \ 
+    do {                                                   \ 
+        FOREACH_PARAMNUM(LWTRACE_PREPARE_PARAMS_I, params) \ 
+    } while (false) 
+#define LWTRACE_COUNT_PARAMS_I(i) +(std::is_same<TP##i, ::NLWTrace::TNil>::value ? 0 : 1) 
+#define LWTRACE_COUNT_PARAMS (0 FOREACH_PARAMNUM(LWTRACE_COUNT_PARAMS_I)) 
+#define LWTRACE_MAX_PARAMS_I(i) +1 
+#define LWTRACE_MAX_PARAMS (0 FOREACH_PARAMNUM(LWTRACE_MAX_PARAMS_I)) 
+ 
+// Determine maximum sizeof(t) over all supported types 
+#define LWTRACE_MAX_PARAM_SIZE_TA_TAIL_I(n, t, v) v, 
+#define LWTRACE_MAX_PARAM_SIZE_TA_TAIL                  \ 
+    FOREACH_PARAMTYPE(LWTRACE_MAX_PARAM_SIZE_TA_TAIL_I) \ 
+    0 
+#define LWTRACE_MAX_PARAM_SIZE_TP_I(n, t, v) , size_t v = 0 
+#define LWTRACE_MAX_PARAM_SIZE_TP size_t Head = 0 FOREACH_PARAMTYPE(LWTRACE_MAX_PARAM_SIZE_TP_I) 
+#define LWTRACE_MAX_PARAM_SIZE_TA_I(n, t, v) , sizeof(t) 
+#define LWTRACE_MAX_PARAM_SIZE_TA 0 FOREACH_PARAMTYPE(LWTRACE_MAX_PARAM_SIZE_TA_I) 
+#define LWTRACE_MAX_PARAM_SIZE ::NLWTrace::TMaxParamSize<LWTRACE_MAX_PARAM_SIZE_TA>::Result 
+ 
+namespace NLWTrace { 
+    template <LWTRACE_MAX_PARAM_SIZE_TP> 
+    struct TMaxParamSize { 
+        static const size_t Tail = TMaxParamSize<LWTRACE_MAX_PARAM_SIZE_TA_TAIL>::Result; 
+        static const size_t Result = (Head > Tail ? Head : Tail); 
+    }; 
+ 
+    template <> 
+    struct TMaxParamSize<> { 
+        static const size_t Result = 0; 
+    }; 
+ 
+} 
+ 
+// Define stuff that is needed to register probes before main() 
+#define LWTRACE_REGISTER_PROBES(provider)                                                           \ 
+    namespace LWTRACE_GET_NAMESPACE(provider) {                                                     \ 
+        struct TInitLWTrace##provider {                                                             \ 
+            TInitLWTrace##provider() {                                                              \ 
+                Singleton<NLWTrace::TProbeRegistry>()->AddProbesList(LWTRACE_GET_PROBES(provider)); \ 
+            }                                                                                       \ 
+            /* This may not be in anonymous namespace because otherwise */                          \ 
+            /* it is called twice when .so loaded twice */                                          \ 
+        }* InitLWTrace##provider = Singleton<TInitLWTrace##provider>();                             \ 
+    }                                                                                               \ 
+    /**/ 
+ 
+// Macro for TSignature POD structure static initialization 
+#define LWTRACE_SIGNATURE_CTOR(types, names)                                                                          \ 
+    {                                                                                                                 \ 
+        /* ParamTypes */ ::NLWTrace::TUserSignature<LWTRACE_EXPAND(LWTRACE_UNROLL types)>::ParamTypes,                \ 
+            /* ParamNames */ {LWTRACE_EXPAND(LWTRACE_UNROLL names)},                                                  \ 
+            /* ParamCount */ ::NLWTrace::TUserSignature<LWTRACE_EXPAND(LWTRACE_UNROLL types)>::ParamCount,            \ 
+            /* SerializeParams */ &::NLWTrace::TUserSignature<LWTRACE_EXPAND(LWTRACE_UNROLL types)>::SerializeParams, \ 
+            /* CloneParams */ &::NLWTrace::TUserSignature<LWTRACE_EXPAND(LWTRACE_UNROLL types)>::CloneParams,         \ 
             /* DestroyParams */ &::NLWTrace::TUserSignature<LWTRACE_EXPAND(LWTRACE_UNROLL types)>::DestroyParams,     \
             /* SerializeToPb */ &::NLWTrace::TUserSignature<LWTRACE_EXPAND(LWTRACE_UNROLL types)>::SerializeToPb,     \
             /* DeserializeFromPb */ &::NLWTrace::TUserSignature<LWTRACE_EXPAND(LWTRACE_UNROLL types)>::DeserializeFromPb\
-    }
-
-// Macro for TEvent POD structure static initialization
-#define LWTRACE_EVENT_CTOR(name, groups, types, names)                   \
-    {                                                                    \
-        /* Name */ #name,                                                \
-            /* Groups */ {LWTRACE_EXPAND(LWTRACE_UNROLL_GROUPS groups)}, \
-            /* Signature */ LWTRACE_SIGNATURE_CTOR(types, names)         \
-    }
-
-// Macro for TProbe POD structure static initialization
-#define LWTRACE_PROBE_CTOR(name, groups, types, names)              \
-    {                                                               \
-        /* Event */ LWTRACE_EVENT_CTOR(name, groups, types, names), \
-            /* ExecutorsCount */ 0,                                 \
-            /* Lock */ {0},                                         \
-            /* Executors */ {0},                                    \
-            /* Front */ 0,                                          \
-            /* Back */ 0                                            \
-    }
-
-// Provider static data accessors
-#define LWTRACE_GET_NAMESPACE(provider) NLWTrace_##provider
-#define LWTRACE_GET_NAME(name) lwtrace_##name
-#define LWTRACE_GET_TYPE(name) TLWTrace_##name
-#define LWTRACE_GET_PROBES_I(provider) gProbes##provider
-#define LWTRACE_GET_EVENTS_I(provider) gEvents##provider
-
-// Declaration of provider static data
-#define LWTRACE_DECLARE_PROBE(name, groups, types, names)                                        \
-    typedef ::NLWTrace::TUserProbe<LWTRACE_EXPAND(LWTRACE_UNROLL types)> LWTRACE_GET_TYPE(name); \
-    extern LWTRACE_GET_TYPE(name) LWTRACE_GET_NAME(name);                                        \
-    /**/
-#define LWTRACE_DECLARE_EVENT(name, groups, types, names)                                        \
-    typedef ::NLWTrace::TUserEvent<LWTRACE_EXPAND(LWTRACE_UNROLL types)> LWTRACE_GET_TYPE(name); \
-    extern LWTRACE_GET_TYPE(name) LWTRACE_GET_NAME(name);                                        \
-    /**/
-#define LWTRACE_DECLARE_PROVIDER_I(provider)                                                                   \
-    namespace LWTRACE_GET_NAMESPACE(provider) {                                                                \
-        provider(LWTRACE_DECLARE_PROBE, LWTRACE_DECLARE_EVENT, LWTRACE_ENROLL, LWTRACE_ENROLL, LWTRACE_ENROLL) \
-    }                                                                                                          \
-    extern ::NLWTrace::TProbe* LWTRACE_GET_PROBES_I(provider)[];                                               \
-    extern ::NLWTrace::TEvent* LWTRACE_GET_EVENTS_I(provider)[];                                               \
-    /**/
-
-// Initialization of provider static data
-#define LWTRACE_UNROLL_GROUPS(x) #x, LWTRACE_UNROLL
-#define LWTRACE_DEFINE_PROBE(name, groups, types, names)  \
-    LWTRACE_GET_TYPE(name)                                \
-    LWTRACE_GET_NAME(name) =                              \
-        {LWTRACE_PROBE_CTOR(name, groups, types, names)}; \
-    /**/
-#define LWTRACE_DEFINE_EVENT(name, groups, types, names)  \
-    LWTRACE_GET_TYPE(name)                                \
-    LWTRACE_GET_NAME(name) =                              \
-        {LWTRACE_EVENT_CTOR(name, groups, types, names)}; \
-    /**/
-#define LWTRACE_PROBE_ADDRESS_I(name, groups, types, names) \
-    LWTRACE_GET_NAME(name).Probe, /**/
-#define LWTRACE_PROBE_ADDRESS(provider) \
-    &LWTRACE_GET_NAMESPACE(provider)::LWTRACE_PROBE_ADDRESS_I /**/
-#define LWTRACE_EVENT_ADDRESS_I(name, groups, types, names) \
-    LWTRACE_GET_NAME(name).Event, /**/
-#define LWTRACE_EVENT_ADDRESS(provider) \
-    &LWTRACE_GET_NAMESPACE(provider)::LWTRACE_EVENT_ADDRESS_I /**/
-#define LWTRACE_DEFINE_PROVIDER_I(provider)                                                                            \
-    namespace LWTRACE_GET_NAMESPACE(provider) {                                                                        \
-        provider(LWTRACE_DEFINE_PROBE, LWTRACE_DEFINE_EVENT, (provider)LWTRACE_ENROLL, LWTRACE_ENROLL, LWTRACE_ENROLL) \
-    }                                                                                                                  \
-    ::NLWTrace::TProbe* LWTRACE_GET_PROBES_I(provider)[] = {                                                           \
-        provider(LWTRACE_PROBE_ADDRESS(provider), LWTRACE_EAT, LWTRACE_ENROLL, LWTRACE_ENROLL, LWTRACE_ENROLL)         \
-            NULL};                                                                                                     \
-    ::NLWTrace::TEvent* LWTRACE_GET_EVENTS_I(provider)[] = {                                                           \
-        provider(LWTRACE_EAT, LWTRACE_EVENT_ADDRESS(provider), LWTRACE_ENROLL, LWTRACE_ENROLL, LWTRACE_ENROLL)         \
-            NULL};                                                                                                     \
-    LWTRACE_REGISTER_PROBES(provider)
-    /**/
-
-#define LWPROBE_I(probe, ...)                                       \
-    do {                                                            \
-        if ((probe).Probe.GetExecutorsCount() > 0) {                \
-            ::NLWTrace::TScopedThreadCpuTracker _cpuTracker(probe); \
-            TReadSpinLockGuard g((probe).Probe.Lock);               \
-            if ((probe).Probe.GetExecutorsCount() > 0) {            \
-                (probe)(__VA_ARGS__);                               \
-            }                                                       \
-        }                                                           \
-    } while (false) /**/
-
+    } 
+ 
+// Macro for TEvent POD structure static initialization 
+#define LWTRACE_EVENT_CTOR(name, groups, types, names)                   \ 
+    {                                                                    \ 
+        /* Name */ #name,                                                \ 
+            /* Groups */ {LWTRACE_EXPAND(LWTRACE_UNROLL_GROUPS groups)}, \ 
+            /* Signature */ LWTRACE_SIGNATURE_CTOR(types, names)         \ 
+    } 
+ 
+// Macro for TProbe POD structure static initialization 
+#define LWTRACE_PROBE_CTOR(name, groups, types, names)              \ 
+    {                                                               \ 
+        /* Event */ LWTRACE_EVENT_CTOR(name, groups, types, names), \ 
+            /* ExecutorsCount */ 0,                                 \ 
+            /* Lock */ {0},                                         \ 
+            /* Executors */ {0},                                    \ 
+            /* Front */ 0,                                          \ 
+            /* Back */ 0                                            \ 
+    } 
+ 
+// Provider static data accessors 
+#define LWTRACE_GET_NAMESPACE(provider) NLWTrace_##provider 
+#define LWTRACE_GET_NAME(name) lwtrace_##name 
+#define LWTRACE_GET_TYPE(name) TLWTrace_##name 
+#define LWTRACE_GET_PROBES_I(provider) gProbes##provider 
+#define LWTRACE_GET_EVENTS_I(provider) gEvents##provider 
+ 
+// Declaration of provider static data 
+#define LWTRACE_DECLARE_PROBE(name, groups, types, names)                                        \ 
+    typedef ::NLWTrace::TUserProbe<LWTRACE_EXPAND(LWTRACE_UNROLL types)> LWTRACE_GET_TYPE(name); \ 
+    extern LWTRACE_GET_TYPE(name) LWTRACE_GET_NAME(name);                                        \ 
+    /**/ 
+#define LWTRACE_DECLARE_EVENT(name, groups, types, names)                                        \ 
+    typedef ::NLWTrace::TUserEvent<LWTRACE_EXPAND(LWTRACE_UNROLL types)> LWTRACE_GET_TYPE(name); \ 
+    extern LWTRACE_GET_TYPE(name) LWTRACE_GET_NAME(name);                                        \ 
+    /**/ 
+#define LWTRACE_DECLARE_PROVIDER_I(provider)                                                                   \ 
+    namespace LWTRACE_GET_NAMESPACE(provider) {                                                                \ 
+        provider(LWTRACE_DECLARE_PROBE, LWTRACE_DECLARE_EVENT, LWTRACE_ENROLL, LWTRACE_ENROLL, LWTRACE_ENROLL) \ 
+    }                                                                                                          \ 
+    extern ::NLWTrace::TProbe* LWTRACE_GET_PROBES_I(provider)[];                                               \ 
+    extern ::NLWTrace::TEvent* LWTRACE_GET_EVENTS_I(provider)[];                                               \ 
+    /**/ 
+ 
+// Initialization of provider static data 
+#define LWTRACE_UNROLL_GROUPS(x) #x, LWTRACE_UNROLL 
+#define LWTRACE_DEFINE_PROBE(name, groups, types, names)  \ 
+    LWTRACE_GET_TYPE(name)                                \ 
+    LWTRACE_GET_NAME(name) =                              \ 
+        {LWTRACE_PROBE_CTOR(name, groups, types, names)}; \ 
+    /**/ 
+#define LWTRACE_DEFINE_EVENT(name, groups, types, names)  \ 
+    LWTRACE_GET_TYPE(name)                                \ 
+    LWTRACE_GET_NAME(name) =                              \ 
+        {LWTRACE_EVENT_CTOR(name, groups, types, names)}; \ 
+    /**/ 
+#define LWTRACE_PROBE_ADDRESS_I(name, groups, types, names) \ 
+    LWTRACE_GET_NAME(name).Probe, /**/ 
+#define LWTRACE_PROBE_ADDRESS(provider) \ 
+    &LWTRACE_GET_NAMESPACE(provider)::LWTRACE_PROBE_ADDRESS_I /**/ 
+#define LWTRACE_EVENT_ADDRESS_I(name, groups, types, names) \ 
+    LWTRACE_GET_NAME(name).Event, /**/ 
+#define LWTRACE_EVENT_ADDRESS(provider) \ 
+    &LWTRACE_GET_NAMESPACE(provider)::LWTRACE_EVENT_ADDRESS_I /**/ 
+#define LWTRACE_DEFINE_PROVIDER_I(provider)                                                                            \ 
+    namespace LWTRACE_GET_NAMESPACE(provider) {                                                                        \ 
+        provider(LWTRACE_DEFINE_PROBE, LWTRACE_DEFINE_EVENT, (provider)LWTRACE_ENROLL, LWTRACE_ENROLL, LWTRACE_ENROLL) \ 
+    }                                                                                                                  \ 
+    ::NLWTrace::TProbe* LWTRACE_GET_PROBES_I(provider)[] = {                                                           \ 
+        provider(LWTRACE_PROBE_ADDRESS(provider), LWTRACE_EAT, LWTRACE_ENROLL, LWTRACE_ENROLL, LWTRACE_ENROLL)         \ 
+            NULL};                                                                                                     \ 
+    ::NLWTrace::TEvent* LWTRACE_GET_EVENTS_I(provider)[] = {                                                           \ 
+        provider(LWTRACE_EAT, LWTRACE_EVENT_ADDRESS(provider), LWTRACE_ENROLL, LWTRACE_ENROLL, LWTRACE_ENROLL)         \ 
+            NULL};                                                                                                     \ 
+    LWTRACE_REGISTER_PROBES(provider) 
+    /**/ 
+ 
+#define LWPROBE_I(probe, ...)                                       \ 
+    do {                                                            \ 
+        if ((probe).Probe.GetExecutorsCount() > 0) {                \ 
+            ::NLWTrace::TScopedThreadCpuTracker _cpuTracker(probe); \ 
+            TReadSpinLockGuard g((probe).Probe.Lock);               \ 
+            if ((probe).Probe.GetExecutorsCount() > 0) {            \ 
+                (probe)(__VA_ARGS__);                               \ 
+            }                                                       \ 
+        }                                                           \ 
+    } while (false) /**/ 
+ 
 #define LWPROBE_ENABLED_I(probe) ((probe).Probe.GetExecutorsCount() > 0)
 
-#define LWPROBE_DURATION_I(probetype, uniqid, probe, ...) probetype ::TScopedDuration uniqid(probe, 0 /* fake P0 - used for duration */, ##__VA_ARGS__);
-
-#define LWTRACK_I(probe, orbit, ...)                                    \
-    do {                                                                \
-        if ((probe).Probe.GetExecutorsCount() > 0) {                    \
-            ::NLWTrace::TScopedThreadCpuTracker _cpuTracker(probe);     \
-            TReadSpinLockGuard g((probe).Probe.Lock);                   \
-            if ((probe).Probe.GetExecutorsCount() > 0) {                \
-                (probe).Run(orbit, ##__VA_ARGS__);                      \
-            }                                                           \
-        } else {                                                        \
-            auto& _orbit = (orbit);                                     \
-            if (HasShuttles(_orbit)) {                                  \
-                ::NLWTrace::TScopedThreadCpuTracker _cpuTracker(probe); \
-                (probe).RunShuttles(_orbit, ##__VA_ARGS__);             \
-            }                                                           \
-        }                                                               \
-    } while (false) /**/
-
-#define LWEVENT_I(event, ...) (event)(__VA_ARGS__)
-
-#else
-#define LWTRACE_MAX_PARAM_SIZE sizeof(void*)
-#define LWTRACE_MAX_PARAMS 1
-#define FOREACH_PARAMTYPE(MACRO, ...)
-
-#endif
+#define LWPROBE_DURATION_I(probetype, uniqid, probe, ...) probetype ::TScopedDuration uniqid(probe, 0 /* fake P0 - used for duration */, ##__VA_ARGS__); 
+ 
+#define LWTRACK_I(probe, orbit, ...)                                    \ 
+    do {                                                                \ 
+        if ((probe).Probe.GetExecutorsCount() > 0) {                    \ 
+            ::NLWTrace::TScopedThreadCpuTracker _cpuTracker(probe);     \ 
+            TReadSpinLockGuard g((probe).Probe.Lock);                   \ 
+            if ((probe).Probe.GetExecutorsCount() > 0) {                \ 
+                (probe).Run(orbit, ##__VA_ARGS__);                      \ 
+            }                                                           \ 
+        } else {                                                        \ 
+            auto& _orbit = (orbit);                                     \ 
+            if (HasShuttles(_orbit)) {                                  \ 
+                ::NLWTrace::TScopedThreadCpuTracker _cpuTracker(probe); \ 
+                (probe).RunShuttles(_orbit, ##__VA_ARGS__);             \ 
+            }                                                           \ 
+        }                                                               \ 
+    } while (false) /**/ 
+ 
+#define LWEVENT_I(event, ...) (event)(__VA_ARGS__) 
+ 
+#else 
+#define LWTRACE_MAX_PARAM_SIZE sizeof(void*) 
+#define LWTRACE_MAX_PARAMS 1 
+#define FOREACH_PARAMTYPE(MACRO, ...) 
+ 
+#endif 
diff --git a/library/cpp/lwtrace/probe.h b/library/cpp/lwtrace/probe.h
index 31fa282da3..1efd2361da 100644
--- a/library/cpp/lwtrace/probe.h
+++ b/library/cpp/lwtrace/probe.h
@@ -1,266 +1,266 @@
-#pragma once
-
-#include "event.h"
-#include "preprocessor.h"
-#include "rwspinlock.h"
-#include "shuttle.h"
-
+#pragma once 
+ 
+#include "event.h" 
+#include "preprocessor.h" 
+#include "rwspinlock.h" 
+#include "shuttle.h" 
+ 
 #include <util/datetime/cputimer.h>
 #include <util/generic/hide_ptr.h>
 #include <util/generic/scope.h>
 #include <util/system/atomic.h>
 
-namespace NLWTrace {
-    // Represents a chain (linked list) of steps for execution of a trace query block
-    // NOTE: different executor objects are used on different probes (even for the same query block)
-    class IExecutor {
-    private:
-        IExecutor* Next;
-
-    public:
-        IExecutor()
-            : Next(nullptr)
-        {
-        }
-
-        virtual ~IExecutor() {
-            if (Next != nullptr) {
-                delete Next;
-            }
-        }
-
-        void Execute(TOrbit& orbit, const TParams& params) {
-            if (DoExecute(orbit, params) && Next != nullptr) {
-                Next->Execute(orbit, params);
-            }
-        }
-
-        void SetNext(IExecutor* next) {
-            Next = next;
-        }
-
-        IExecutor* GetNext() {
-            return Next;
-        }
-
-        const IExecutor* GetNext() const {
-            return Next;
-        }
-
-    protected:
-        virtual bool DoExecute(TOrbit& orbit, const TParams& params) = 0;
-    };
-
-    // Common class for all probes
-    struct TProbe {
-        // Const configuration
-        TEvent Event;
-
-        // State that don't need any locking
-        TAtomic ExecutorsCount;
-
-        // State that must be accessed under lock
-        TRWSpinLock Lock;
-        IExecutor* Executors[LWTRACE_MAX_ACTIONS];
-        IExecutor** Front; // Invalid if ExecutorsCount == 0
-        IExecutor** Back;  // Invalid if ExecutorsCount == 0
-
-        void Init() {
-            ExecutorsCount = 0;
-            Lock.Init();
-            Zero(Executors);
-            Front = nullptr;
-            Back = nullptr;
-        }
-
-        IExecutor** First() {
-            return Executors;
-        }
-
-        IExecutor** Last() {
-            return Executors + LWTRACE_MAX_ACTIONS;
-        }
-
-        void Inc(IExecutor**& it) {
-            it++;
-            if (it == Last()) {
-                it = First();
-            }
-        }
-
-        intptr_t GetExecutorsCount() const {
-            return AtomicGet(ExecutorsCount);
-        }
-
-        bool Attach(IExecutor* exec) {
-            TWriteSpinLockGuard g(Lock);
-            if (ExecutorsCount > 0) {
-                for (IExecutor** it = Front;; Inc(it)) {
-                    if (*it == nullptr) {
-                        *it = exec;
-                        AtomicIncrement(ExecutorsCount);
-                        return true; // Inserted into free slot in [First; Last]
-                    }
-                    if (it == Back) {
-                        break;
-                    }
-                }
-                IExecutor** newBack = Back;
-                Inc(newBack);
-                if (newBack == Front) {
-                    return false; // Buffer is full
-                } else {
-                    Back = newBack;
-                    *Back = exec;
-                    AtomicIncrement(ExecutorsCount);
-                    return true; // Inserted after Last
-                }
-            } else {
-                Front = Back = First();
-                *Front = exec;
-                AtomicIncrement(ExecutorsCount);
-                return true; // Inserted as a first element
-            }
-        }
-
-        bool Detach(IExecutor* exec) {
-            TWriteSpinLockGuard g(Lock);
-            for (IExecutor** it = First(); it != Last(); it++) {
-                if ((*it) == exec) {
-                    *it = nullptr;
-                    AtomicDecrement(ExecutorsCount);
-                    if (ExecutorsCount > 0) {
-                        for (;; Inc(Front)) {
-                            if (*Front != nullptr) {
-                                break;
-                            }
-                            if (Front == Back) {
-                                break;
-                            }
-                        }
-                    }
-                    return true;
-                }
-            }
-            return false;
-        }
-
-        void RunExecutors(TOrbit& orbit, const TParams& params) {
-            // Read lock is implied
-            if (ExecutorsCount > 0) {
-                for (IExecutor** it = Front;; Inc(it)) {
-                    IExecutor* exec = *it;
-                    if (exec) {
-                        exec->Execute(orbit, params);
-                    }
-                    if (it == Back) {
-                        break;
-                    }
-                }
-            }
-        }
-
-        void RunShuttles(TOrbit& orbit, const TParams& params) {
-            orbit.AddProbe(this, params);
-        }
-    };
-
-#ifndef LWTRACE_DISABLE
-
-    template <class T>
-    inline void PreparePtr(const T& ref, const T*& ptr) {
-        ptr = &ref;
-    }
-
-    template <>
-    inline void PreparePtr<TNil>(const TNil&, const TNil*&) {
-    }
-
+namespace NLWTrace { 
+    // Represents a chain (linked list) of steps for execution of a trace query block 
+    // NOTE: different executor objects are used on different probes (even for the same query block) 
+    class IExecutor { 
+    private: 
+        IExecutor* Next; 
+ 
+    public: 
+        IExecutor() 
+            : Next(nullptr) 
+        { 
+        } 
+ 
+        virtual ~IExecutor() { 
+            if (Next != nullptr) { 
+                delete Next; 
+            } 
+        } 
+ 
+        void Execute(TOrbit& orbit, const TParams& params) { 
+            if (DoExecute(orbit, params) && Next != nullptr) { 
+                Next->Execute(orbit, params); 
+            } 
+        } 
+ 
+        void SetNext(IExecutor* next) { 
+            Next = next; 
+        } 
+ 
+        IExecutor* GetNext() { 
+            return Next; 
+        } 
+ 
+        const IExecutor* GetNext() const { 
+            return Next; 
+        } 
+ 
+    protected: 
+        virtual bool DoExecute(TOrbit& orbit, const TParams& params) = 0; 
+    }; 
+ 
+    // Common class for all probes 
+    struct TProbe { 
+        // Const configuration 
+        TEvent Event; 
+ 
+        // State that don't need any locking 
+        TAtomic ExecutorsCount; 
+ 
+        // State that must be accessed under lock 
+        TRWSpinLock Lock; 
+        IExecutor* Executors[LWTRACE_MAX_ACTIONS]; 
+        IExecutor** Front; // Invalid if ExecutorsCount == 0 
+        IExecutor** Back;  // Invalid if ExecutorsCount == 0 
+ 
+        void Init() { 
+            ExecutorsCount = 0; 
+            Lock.Init(); 
+            Zero(Executors); 
+            Front = nullptr; 
+            Back = nullptr; 
+        } 
+ 
+        IExecutor** First() { 
+            return Executors; 
+        } 
+ 
+        IExecutor** Last() { 
+            return Executors + LWTRACE_MAX_ACTIONS; 
+        } 
+ 
+        void Inc(IExecutor**& it) { 
+            it++; 
+            if (it == Last()) { 
+                it = First(); 
+            } 
+        } 
+ 
+        intptr_t GetExecutorsCount() const { 
+            return AtomicGet(ExecutorsCount); 
+        } 
+ 
+        bool Attach(IExecutor* exec) { 
+            TWriteSpinLockGuard g(Lock); 
+            if (ExecutorsCount > 0) { 
+                for (IExecutor** it = Front;; Inc(it)) { 
+                    if (*it == nullptr) { 
+                        *it = exec; 
+                        AtomicIncrement(ExecutorsCount); 
+                        return true; // Inserted into free slot in [First; Last] 
+                    } 
+                    if (it == Back) { 
+                        break; 
+                    } 
+                } 
+                IExecutor** newBack = Back; 
+                Inc(newBack); 
+                if (newBack == Front) { 
+                    return false; // Buffer is full 
+                } else { 
+                    Back = newBack; 
+                    *Back = exec; 
+                    AtomicIncrement(ExecutorsCount); 
+                    return true; // Inserted after Last 
+                } 
+            } else { 
+                Front = Back = First(); 
+                *Front = exec; 
+                AtomicIncrement(ExecutorsCount); 
+                return true; // Inserted as a first element 
+            } 
+        } 
+ 
+        bool Detach(IExecutor* exec) { 
+            TWriteSpinLockGuard g(Lock); 
+            for (IExecutor** it = First(); it != Last(); it++) { 
+                if ((*it) == exec) { 
+                    *it = nullptr; 
+                    AtomicDecrement(ExecutorsCount); 
+                    if (ExecutorsCount > 0) { 
+                        for (;; Inc(Front)) { 
+                            if (*Front != nullptr) { 
+                                break; 
+                            } 
+                            if (Front == Back) { 
+                                break; 
+                            } 
+                        } 
+                    } 
+                    return true; 
+                } 
+            } 
+            return false; 
+        } 
+ 
+        void RunExecutors(TOrbit& orbit, const TParams& params) { 
+            // Read lock is implied 
+            if (ExecutorsCount > 0) { 
+                for (IExecutor** it = Front;; Inc(it)) { 
+                    IExecutor* exec = *it; 
+                    if (exec) { 
+                        exec->Execute(orbit, params); 
+                    } 
+                    if (it == Back) { 
+                        break; 
+                    } 
+                } 
+            } 
+        } 
+ 
+        void RunShuttles(TOrbit& orbit, const TParams& params) { 
+            orbit.AddProbe(this, params); 
+        } 
+    }; 
+ 
+#ifndef LWTRACE_DISABLE 
+ 
+    template <class T> 
+    inline void PreparePtr(const T& ref, const T*& ptr) { 
+        ptr = &ref; 
+    } 
+ 
+    template <> 
+    inline void PreparePtr<TNil>(const TNil&, const TNil*&) { 
+    } 
+ 
 #define LWTRACE_SCOPED_FUNCTION_PARAMS_I(i) (1) typename ::NLWTrace::TParamTraits<TP##i>::TFuncParam p##i = ERROR_not_enough_parameters() LWTRACE_COMMA
-#define LWTRACE_SCOPED_FUNCTION_PARAMS LWTRACE_EXPAND(LWTRACE_EAT FOREACH_PARAMNUM(LWTRACE_SCOPED_FUNCTION_PARAMS_I)(0))
-#define LWTRACE_SCOPED_FUNCTION_PARAMS_BY_REF_I(i) (1) typename ::NLWTrace::TParamTraits<TP##i>::TStoreType& p##i = *(ERROR_not_enough_parameters*)(HidePointerOrigin(nullptr))LWTRACE_COMMA
-#define LWTRACE_SCOPED_FUNCTION_PARAMS_BY_REF LWTRACE_EXPAND(LWTRACE_EAT FOREACH_PARAMNUM(LWTRACE_SCOPED_FUNCTION_PARAMS_BY_REF_I)(0))
-#define LWTRACE_SCOPED_PREPARE_PTRS_I(i) PreparePtr(p##i, P##i);
-#define LWTRACE_SCOPED_PREPARE_PTRS()                   \
-    do {                                                \
-        FOREACH_PARAMNUM(LWTRACE_SCOPED_PREPARE_PTRS_I) \
-    } while (false)
-#define LWTRACE_SCOPED_PREPARE_PARAMS_I(i, params) params.Param[i].CopyConstruct<typename ::NLWTrace::TParamTraits<TP##i>::TStoreType>(*P##i);
-#define LWTRACE_SCOPED_PREPARE_PARAMS(params)                     \
-    do {                                                          \
-        FOREACH_PARAMNUM(LWTRACE_SCOPED_PREPARE_PARAMS_I, params) \
-    } while (false)
-
-    template <LWTRACE_TEMPLATE_PARAMS>
-    struct TUserProbe;
-
-    template <LWTRACE_TEMPLATE_PARAMS>
-    class TScopedDurationImpl {
-    private:
-        TUserProbe<LWTRACE_TEMPLATE_ARGS>* Probe;
-        ui64 Started;
-        TParams Params;
-
-    public:
-        explicit TScopedDurationImpl(TUserProbe<LWTRACE_TEMPLATE_ARGS>& probe, LWTRACE_SCOPED_FUNCTION_PARAMS) {
-            if (probe.Probe.GetExecutorsCount() > 0) {
-                Probe = &probe;
-                LWTRACE_PREPARE_PARAMS(Params);
-                Started = GetCycleCount();
-            } else {
-                Probe = nullptr;
-            }
-        }
-        ~TScopedDurationImpl() {
-            if (Probe) {
-                if (Probe->Probe.GetExecutorsCount() > 0) {
-                    TReadSpinLockGuard g(Probe->Probe.Lock);
-                    if (Probe->Probe.GetExecutorsCount() > 0) {
-                        ui64 duration = CyclesToDuration(GetCycleCount() - Started).MicroSeconds();
-                        Params.Param[0].template CopyConstruct<typename TParamTraits<TP0>::TStoreType>(duration);
-                        TOrbit orbit;
-                        Probe->Probe.RunExecutors(orbit, Params);
-                    }
-                }
-                TUserSignature<LWTRACE_TEMPLATE_ARGS>::DestroyParams(Params);
-            }
-        }
-    };
-
-    // Class representing a specific probe
-    template <LWTRACE_TEMPLATE_PARAMS_NODEF>
-    struct TUserProbe {
-        TProbe Probe;
-
-        inline void operator()(LWTRACE_FUNCTION_PARAMS) {
-            TParams params;
-            LWTRACE_PREPARE_PARAMS(params);
+#define LWTRACE_SCOPED_FUNCTION_PARAMS LWTRACE_EXPAND(LWTRACE_EAT FOREACH_PARAMNUM(LWTRACE_SCOPED_FUNCTION_PARAMS_I)(0)) 
+#define LWTRACE_SCOPED_FUNCTION_PARAMS_BY_REF_I(i) (1) typename ::NLWTrace::TParamTraits<TP##i>::TStoreType& p##i = *(ERROR_not_enough_parameters*)(HidePointerOrigin(nullptr))LWTRACE_COMMA 
+#define LWTRACE_SCOPED_FUNCTION_PARAMS_BY_REF LWTRACE_EXPAND(LWTRACE_EAT FOREACH_PARAMNUM(LWTRACE_SCOPED_FUNCTION_PARAMS_BY_REF_I)(0)) 
+#define LWTRACE_SCOPED_PREPARE_PTRS_I(i) PreparePtr(p##i, P##i); 
+#define LWTRACE_SCOPED_PREPARE_PTRS()                   \ 
+    do {                                                \ 
+        FOREACH_PARAMNUM(LWTRACE_SCOPED_PREPARE_PTRS_I) \ 
+    } while (false) 
+#define LWTRACE_SCOPED_PREPARE_PARAMS_I(i, params) params.Param[i].CopyConstruct<typename ::NLWTrace::TParamTraits<TP##i>::TStoreType>(*P##i); 
+#define LWTRACE_SCOPED_PREPARE_PARAMS(params)                     \ 
+    do {                                                          \ 
+        FOREACH_PARAMNUM(LWTRACE_SCOPED_PREPARE_PARAMS_I, params) \ 
+    } while (false) 
+ 
+    template <LWTRACE_TEMPLATE_PARAMS> 
+    struct TUserProbe; 
+ 
+    template <LWTRACE_TEMPLATE_PARAMS> 
+    class TScopedDurationImpl { 
+    private: 
+        TUserProbe<LWTRACE_TEMPLATE_ARGS>* Probe; 
+        ui64 Started; 
+        TParams Params; 
+ 
+    public: 
+        explicit TScopedDurationImpl(TUserProbe<LWTRACE_TEMPLATE_ARGS>& probe, LWTRACE_SCOPED_FUNCTION_PARAMS) { 
+            if (probe.Probe.GetExecutorsCount() > 0) { 
+                Probe = &probe; 
+                LWTRACE_PREPARE_PARAMS(Params); 
+                Started = GetCycleCount(); 
+            } else { 
+                Probe = nullptr; 
+            } 
+        } 
+        ~TScopedDurationImpl() { 
+            if (Probe) { 
+                if (Probe->Probe.GetExecutorsCount() > 0) { 
+                    TReadSpinLockGuard g(Probe->Probe.Lock); 
+                    if (Probe->Probe.GetExecutorsCount() > 0) { 
+                        ui64 duration = CyclesToDuration(GetCycleCount() - Started).MicroSeconds(); 
+                        Params.Param[0].template CopyConstruct<typename TParamTraits<TP0>::TStoreType>(duration); 
+                        TOrbit orbit; 
+                        Probe->Probe.RunExecutors(orbit, Params); 
+                    } 
+                } 
+                TUserSignature<LWTRACE_TEMPLATE_ARGS>::DestroyParams(Params); 
+            } 
+        } 
+    }; 
+ 
+    // Class representing a specific probe 
+    template <LWTRACE_TEMPLATE_PARAMS_NODEF> 
+    struct TUserProbe { 
+        TProbe Probe; 
+ 
+        inline void operator()(LWTRACE_FUNCTION_PARAMS) { 
+            TParams params; 
+            LWTRACE_PREPARE_PARAMS(params); 
             Y_DEFER { TUserSignature<LWTRACE_TEMPLATE_ARGS>::DestroyParams(params); };
 
-            TOrbit orbit;
-            Probe.RunExecutors(orbit, params);
-        }
-
-        inline void Run(TOrbit& orbit, LWTRACE_FUNCTION_PARAMS) {
-            TParams params;
-            LWTRACE_PREPARE_PARAMS(params);
+            TOrbit orbit; 
+            Probe.RunExecutors(orbit, params); 
+        } 
+ 
+        inline void Run(TOrbit& orbit, LWTRACE_FUNCTION_PARAMS) { 
+            TParams params; 
+            LWTRACE_PREPARE_PARAMS(params); 
             Y_DEFER { TUserSignature<LWTRACE_TEMPLATE_ARGS>::DestroyParams(params); };
 
-            Probe.RunExecutors(orbit, params);
-            Probe.RunShuttles(orbit, params); // Executors can create shuttles
-        }
-
-        // Required to avoid running executors w/o lock
-        inline void RunShuttles(TOrbit& orbit, LWTRACE_FUNCTION_PARAMS) {
-            TParams params;
-            LWTRACE_PREPARE_PARAMS(params);
-            Probe.RunShuttles(orbit, params);
-            TUserSignature<LWTRACE_TEMPLATE_ARGS>::DestroyParams(params);
-        }
-
-        typedef TScopedDurationImpl<LWTRACE_TEMPLATE_ARGS> TScopedDuration;
-    };
-
-#endif
-
-}
+            Probe.RunExecutors(orbit, params); 
+            Probe.RunShuttles(orbit, params); // Executors can create shuttles 
+        } 
+ 
+        // Required to avoid running executors w/o lock 
+        inline void RunShuttles(TOrbit& orbit, LWTRACE_FUNCTION_PARAMS) { 
+            TParams params; 
+            LWTRACE_PREPARE_PARAMS(params); 
+            Probe.RunShuttles(orbit, params); 
+            TUserSignature<LWTRACE_TEMPLATE_ARGS>::DestroyParams(params); 
+        } 
+ 
+        typedef TScopedDurationImpl<LWTRACE_TEMPLATE_ARGS> TScopedDuration; 
+    }; 
+ 
+#endif 
+ 
+} 
diff --git a/library/cpp/lwtrace/probes.cpp b/library/cpp/lwtrace/probes.cpp
index 6f19da0cc8..dba318d340 100644
--- a/library/cpp/lwtrace/probes.cpp
+++ b/library/cpp/lwtrace/probes.cpp
@@ -1,3 +1,3 @@
-#include "probes.h"
-
-LWTRACE_DEFINE_PROVIDER(LWTRACE_INTERNAL_PROVIDER)
+#include "probes.h" 
+ 
+LWTRACE_DEFINE_PROVIDER(LWTRACE_INTERNAL_PROVIDER) 
diff --git a/library/cpp/lwtrace/probes.h b/library/cpp/lwtrace/probes.h
index 68810bd118..6c11355038 100644
--- a/library/cpp/lwtrace/probes.h
+++ b/library/cpp/lwtrace/probes.h
@@ -1,12 +1,12 @@
-#pragma once
-
+#pragma once 
+ 
 #include "all.h"
-
-#define LWTRACE_INTERNAL_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES)    \
-    PROBE(PerfReport, GROUPS(),                                          \
-          TYPES(double, double, double, double),                         \
-          NAMES("probeShare", "probeMinMs", "probeMaxMs", "probeAvgMs")) \
-    PROBE(DeserializationError, GROUPS("LWTraceError"),                  \
+ 
+#define LWTRACE_INTERNAL_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES)    \ 
+    PROBE(PerfReport, GROUPS(),                                          \ 
+          TYPES(double, double, double, double),                         \ 
+          NAMES("probeShare", "probeMinMs", "probeMaxMs", "probeAvgMs")) \ 
+    PROBE(DeserializationError, GROUPS("LWTraceError"),                  \ 
           TYPES(TString, TString),                                       \
           NAMES("probeName", "providerName"))                            \
     PROBE(Fork, GROUPS(),                                                \
@@ -15,9 +15,9 @@
     PROBE(Join, GROUPS(),                                                \
           TYPES(ui64, ui64),                                             \
           NAMES("spanId", "trackLength"))                                \
-    PROBE(OrbitIsUsedConcurrentlyError, GROUPS("LWTraceError"),          \
-          TYPES(TString),                                                \
-          NAMES("backtrace"))                                            \
-    /**/
-
-LWTRACE_DECLARE_PROVIDER(LWTRACE_INTERNAL_PROVIDER)
+    PROBE(OrbitIsUsedConcurrentlyError, GROUPS("LWTraceError"),          \ 
+          TYPES(TString),                                                \ 
+          NAMES("backtrace"))                                            \ 
+    /**/ 
+ 
+LWTRACE_DECLARE_PROVIDER(LWTRACE_INTERNAL_PROVIDER) 
diff --git a/library/cpp/lwtrace/protos/lwtrace.proto b/library/cpp/lwtrace/protos/lwtrace.proto
index 0051095719..4c07b54625 100644
--- a/library/cpp/lwtrace/protos/lwtrace.proto
+++ b/library/cpp/lwtrace/protos/lwtrace.proto
@@ -1,64 +1,64 @@
-/*
- * This file defines language for trace queries and serialization format for trace logs
- */
+/* 
+ * This file defines language for trace queries and serialization format for trace logs 
+ */ 
 syntax = "proto3";
 
-package NLWTrace;
-
+package NLWTrace; 
+ 
 option go_package = "a.yandex-team.ru/library/cpp/lwtrace/protos";
 
-message TProbeDesc {
+message TProbeDesc { 
     string Name = 1; // Use either name+provider
     string Provider = 3;
     string Group = 2; // or group
-}
-
-enum EOperatorType {
+} 
+ 
+enum EOperatorType { 
     OT_EQ = 0;
     OT_NE = 1;
     OT_LT = 2;
     OT_LE = 3;
     OT_GT = 4;
     OT_GE = 5;
-}
-
+} 
+ 
 message TArgument {
     string Param = 1;
-    bytes Value = 2;
+    bytes Value = 2; 
     string Variable = 3;
 }
 
-message TOperator {
+message TOperator { 
     EOperatorType Type = 1;
     repeated TArgument Argument = 8;
-}
-
-message TPredicate {
-    repeated TOperator Operators = 1; // All operators are combined using logical AND
-    double SampleRate = 2; // value 1.0 means trigger actions on 100% events (do not sample if value is not set)
-}
-
-message TLogAction {
+} 
+ 
+message TPredicate { 
+    repeated TOperator Operators = 1; // All operators are combined using logical AND 
+    double SampleRate = 2; // value 1.0 means trigger actions on 100% events (do not sample if value is not set) 
+} 
+ 
+message TLogAction { 
     bool DoNotLogParams = 2;
     bool LogTimestamp = 3;
     uint32 MaxRecords = 4; // Do not write more than MaxRecords records to the log (count from the trace beginning, not start)
-}
-
+} 
+ 
 message TPrintToStderrAction {
 }
 
 message TKillAction {
-}
-
+} 
+ 
 message TSleepAction {
     uint64 NanoSeconds = 1;
-}
-
-message TCustomAction {
+} 
+ 
+message TCustomAction { 
     string Name = 1;
-    repeated string Opts = 2;
-}
-
+    repeated string Opts = 2; 
+} 
+ 
 enum EStatementType {
     ST_MOV = 0;
     ST_ADD = 1;
@@ -77,133 +77,133 @@ message TStatementAction {
     repeated TArgument Argument = 2;
 }
 
-message TRunLogShuttleAction {
+message TRunLogShuttleAction { 
     bool Ignore = 1;
     uint64 ShuttlesCount = 2;
     uint64 MaxTrackLength = 3;
-}
-
-message TEditLogShuttleAction {
+} 
+ 
+message TEditLogShuttleAction { 
     bool Ignore = 1;
-}
-
-message TDropLogShuttleAction {
-}
-
-message TAction {
+} 
+ 
+message TDropLogShuttleAction { 
+} 
+ 
+message TAction { 
     TLogAction LogAction = 2;
     TPrintToStderrAction PrintToStderrAction = 3;
     TCustomAction CustomAction = 4;
     TKillAction KillAction = 6;
     TSleepAction SleepAction = 7;
     TStatementAction StatementAction = 8;
-
+ 
     TRunLogShuttleAction RunLogShuttleAction = 100;
     TEditLogShuttleAction EditLogShuttleAction = 101;
     TDropLogShuttleAction DropLogShuttleAction = 102;
-}
-
-message TBlock {
+} 
+ 
+message TBlock { 
     TProbeDesc ProbeDesc = 1;
     TPredicate Predicate = 2;
     repeated TAction Action = 3;
-}
-
-message TQuery {
-    // Number of events to hold for every thread in cyclic buffer
-    // (Won't be used if LogDurationUs is set to non-zero value)
+} 
+ 
+message TQuery { 
+    // Number of events to hold for every thread in cyclic buffer 
+    // (Won't be used if LogDurationUs is set to non-zero value) 
     uint32 PerThreadLogSize = 1;
-
-    // Hold events for last Duration microseconds
-    // (If zero, than per-thread cyclic buffer will be used to store events)
+ 
+    // Hold events for last Duration microseconds 
+    // (If zero, than per-thread cyclic buffer will be used to store events) 
     uint64 LogDurationUs = 2;
-
-    repeated TBlock Blocks = 3;
-}
-
-message TDashboard {
-    message TCell {
-        optional string Url = 1;
-        optional string Title = 2;
-        optional string Text = 3;
-        optional uint32 RowSpan = 4;
-        optional uint32 ColSpan = 5;
-    }
-
-    message TRow {
-        repeated TCell Cells = 1;
-    }
-
-    optional string Name = 1;
-    optional string Description = 2;
-    repeated TRow Rows = 3;
-}
-
-//////////////////////////////////////////////////////////////////////////////////////////////
-//                       Serialization format for trace logs                                //
-//////////////////////////////////////////////////////////////////////////////////////////////
-enum EParamTypePb {
-    PT_UNKNOWN = 0;
-    PT_I64 = 1;
-    PT_Ui64 = 2;
-    PT_Double = 3;
-    PT_Str = 4;
-    PT_Symbol = 5;
-    PT_Check = 6;
-}
-
-message TEventPb {
+ 
+    repeated TBlock Blocks = 3; 
+} 
+ 
+message TDashboard { 
+    message TCell { 
+        optional string Url = 1; 
+        optional string Title = 2; 
+        optional string Text = 3; 
+        optional uint32 RowSpan = 4; 
+        optional uint32 ColSpan = 5; 
+    } 
+ 
+    message TRow { 
+        repeated TCell Cells = 1; 
+    } 
+ 
+    optional string Name = 1; 
+    optional string Description = 2; 
+    repeated TRow Rows = 3; 
+} 
+ 
+////////////////////////////////////////////////////////////////////////////////////////////// 
+//                       Serialization format for trace logs                                // 
+////////////////////////////////////////////////////////////////////////////////////////////// 
+enum EParamTypePb { 
+    PT_UNKNOWN = 0; 
+    PT_I64 = 1; 
+    PT_Ui64 = 2; 
+    PT_Double = 3; 
+    PT_Str = 4; 
+    PT_Symbol = 5; 
+    PT_Check = 6; 
+} 
+ 
+message TEventPb { 
     string Name = 1;
-    repeated string Groups = 2; // First group is provider
-    repeated EParamTypePb ParamTypes = 3;
-    repeated string ParamNames = 4;
-}
-
-message TLogItemPb {
+    repeated string Groups = 2; // First group is provider 
+    repeated EParamTypePb ParamTypes = 3; 
+    repeated string ParamNames = 4; 
+} 
+ 
+message TLogItemPb { 
     uint64 Thread = 1;
     string Name = 2;
     string Provider = 3;
-    repeated bytes Params = 4;
+    repeated bytes Params = 4; 
     uint64 Timestamp = 5; // microseconds since epoch
     uint64 TimestampCycles = 6; // cycles since machine boot
-}
-
-message TThreadLogPb {
+} 
+ 
+message TThreadLogPb { 
     uint64 ThreadId = 1;
-    repeated TLogItemPb LogItems = 2;
-}
-
-message TLogPb {
-    // Trace info
+    repeated TLogItemPb LogItems = 2; 
+} 
+ 
+message TLogPb { 
+    // Trace info 
     string Name = 1;
     string Description = 2;
     uint64 EventsCount = 3;
     uint64 CrtTime = 4; // Log creation time (seconds since epoch)
-
-    // Traced host info
+ 
+    // Traced host info 
     string Hostname = 101;
-
-    // Traced process info
+ 
+    // Traced process info 
     string ProcessName = 201;
-    bytes CommandLine = 202;
+    bytes CommandLine = 202; 
     uint64 ProcessStartTime = 203;
     uint64 Pid = 204;
     string VersionInfo = 205; // Svn info
-
-    // Trace query and results
+ 
+    // Trace query and results 
     TQuery Query = 301;
-    repeated TEventPb Events = 302;
-    repeated TThreadLogPb ThreadLogs = 303;
-}
-
-message TShuttlePb {
-    repeated TLogPb Parts = 1;
+    repeated TEventPb Events = 302; 
+    repeated TThreadLogPb ThreadLogs = 303; 
+} 
+ 
+message TShuttlePb { 
+    repeated TLogPb Parts = 1; 
     TQuery Query = 2;
-}
-
-message TOrbitPb {
-    repeated TShuttlePb Shuttles = 1;
-}
+} 
+ 
+message TOrbitPb { 
+    repeated TShuttlePb Shuttles = 1; 
+} 
 
 ////////////////////////////////////////////////////////////////////////////////
 // Trace parameter.
@@ -216,7 +216,7 @@ message TTraceParam
         int64  IntValue = 2;
         uint64 UintValue = 3;
         double DoubleValue = 4;
-        bytes StrValue = 5;
+        bytes StrValue = 5; 
     }
 }
 
diff --git a/library/cpp/lwtrace/protos/ya.make b/library/cpp/lwtrace/protos/ya.make
index 503d5e515f..424bdd443b 100644
--- a/library/cpp/lwtrace/protos/ya.make
+++ b/library/cpp/lwtrace/protos/ya.make
@@ -1,6 +1,6 @@
-PROTO_LIBRARY()
+PROTO_LIBRARY() 
 
-OWNER(serxa)
+OWNER(serxa) 
 
 INCLUDE_TAGS(GO_PROTO)
 
diff --git a/library/cpp/lwtrace/rwspinlock.h b/library/cpp/lwtrace/rwspinlock.h
index 7c518ec49e..bd04e2120f 100644
--- a/library/cpp/lwtrace/rwspinlock.h
+++ b/library/cpp/lwtrace/rwspinlock.h
@@ -1,88 +1,88 @@
-#pragma once
-
-#include <util/system/spinlock.h>
-
-// State can be one of:
-// 0) [NOT_USED] State = 0:
-//    * any reader can acquire lock (State += 2: -> READING)
-//    * one writer can acquire lock (State = -1: -> WRITING)
-// 1) [READING] even number:
-//    * State/2 = number of active readers
-//    * no writers are waiting
-//    * any reader can aqcuire lock (State += 2: -> READING)
-//    * active readers can release lock (State -= 2)
-//    * one writer can acquire lock (State += 1: -> WAITING)
-// 2) [WAITING] odd number > 0:
-//    * (State-1)/2 = number of active readers
-//    * no more readers/writers can acquire lock
-//    * active readers can release lock (State -= 2: -> WAITING)
-//    * exactly one writer is waiting for active readers to release lock
-//    * if no more active readers left (State == 1) waiting writer acquires lock (State = -1: -> WRITING)
-// 3) [WRITING] State = -1
-//    * exactly one active writer
-//    * no active readers
-//    * no more readers/writers can acquire lock
-//    * writer can release lock (State = 0: -> READING)
-
-struct TRWSpinLock {
-    TAtomic State; // must be initialized by 'TRWSpinLock myLock = {0};' construction
-
-    void Init() noexcept {
-        State = 0;
-    }
-
-    void AcquireRead() noexcept {
-        while (true) {
-            TAtomic a = AtomicGet(State);
-            if ((a & 1) == 0 && AtomicCas(&State, a + 2, a)) {
-                break;
-            }
-            SpinLockPause();
-        }
-    }
-
-    void ReleaseRead() noexcept {
-        AtomicAdd(State, -2);
-    }
-
-    void AcquireWrite() noexcept {
-        while (true) {
-            TAtomic a = AtomicGet(State);
-            if ((a & 1) == 0 && AtomicCas(&State, a + 1, a)) {
-                break;
-            }
-            SpinLockPause();
-        }
-
+#pragma once 
+ 
+#include <util/system/spinlock.h> 
+ 
+// State can be one of: 
+// 0) [NOT_USED] State = 0: 
+//    * any reader can acquire lock (State += 2: -> READING) 
+//    * one writer can acquire lock (State = -1: -> WRITING) 
+// 1) [READING] even number: 
+//    * State/2 = number of active readers 
+//    * no writers are waiting 
+//    * any reader can aqcuire lock (State += 2: -> READING) 
+//    * active readers can release lock (State -= 2) 
+//    * one writer can acquire lock (State += 1: -> WAITING) 
+// 2) [WAITING] odd number > 0: 
+//    * (State-1)/2 = number of active readers 
+//    * no more readers/writers can acquire lock 
+//    * active readers can release lock (State -= 2: -> WAITING) 
+//    * exactly one writer is waiting for active readers to release lock 
+//    * if no more active readers left (State == 1) waiting writer acquires lock (State = -1: -> WRITING) 
+// 3) [WRITING] State = -1 
+//    * exactly one active writer 
+//    * no active readers 
+//    * no more readers/writers can acquire lock 
+//    * writer can release lock (State = 0: -> READING) 
+ 
+struct TRWSpinLock { 
+    TAtomic State; // must be initialized by 'TRWSpinLock myLock = {0};' construction 
+ 
+    void Init() noexcept { 
+        State = 0; 
+    } 
+ 
+    void AcquireRead() noexcept { 
+        while (true) { 
+            TAtomic a = AtomicGet(State); 
+            if ((a & 1) == 0 && AtomicCas(&State, a + 2, a)) { 
+                break; 
+            } 
+            SpinLockPause(); 
+        } 
+    } 
+ 
+    void ReleaseRead() noexcept { 
+        AtomicAdd(State, -2); 
+    } 
+ 
+    void AcquireWrite() noexcept { 
+        while (true) { 
+            TAtomic a = AtomicGet(State); 
+            if ((a & 1) == 0 && AtomicCas(&State, a + 1, a)) { 
+                break; 
+            } 
+            SpinLockPause(); 
+        } 
+ 
         while (!AtomicCas(&State, TAtomicBase(-1), 1)) {
-            SpinLockPause();
-        }
-    }
-
-    void ReleaseWrite() noexcept {
-        AtomicSet(State, 0);
-    }
-};
-
-struct TRWSpinLockReadOps {
-    static inline void Acquire(TRWSpinLock* t) noexcept {
-        t->AcquireRead();
-    }
-
-    static inline void Release(TRWSpinLock* t) noexcept {
-        t->ReleaseRead();
-    }
-};
-
-struct TRWSpinLockWriteOps {
-    static inline void Acquire(TRWSpinLock* t) noexcept {
-        t->AcquireWrite();
-    }
-
-    static inline void Release(TRWSpinLock* t) noexcept {
-        t->ReleaseWrite();
-    }
-};
-
+            SpinLockPause(); 
+        } 
+    } 
+ 
+    void ReleaseWrite() noexcept { 
+        AtomicSet(State, 0); 
+    } 
+}; 
+ 
+struct TRWSpinLockReadOps { 
+    static inline void Acquire(TRWSpinLock* t) noexcept { 
+        t->AcquireRead(); 
+    } 
+ 
+    static inline void Release(TRWSpinLock* t) noexcept { 
+        t->ReleaseRead(); 
+    } 
+}; 
+ 
+struct TRWSpinLockWriteOps { 
+    static inline void Acquire(TRWSpinLock* t) noexcept { 
+        t->AcquireWrite(); 
+    } 
+ 
+    static inline void Release(TRWSpinLock* t) noexcept { 
+        t->ReleaseWrite(); 
+    } 
+}; 
+ 
 using TReadSpinLockGuard = TGuard<TRWSpinLock, TRWSpinLockReadOps>;
 using TWriteSpinLockGuard = TGuard<TRWSpinLock, TRWSpinLockWriteOps>;
diff --git a/library/cpp/lwtrace/shuttle.cpp b/library/cpp/lwtrace/shuttle.cpp
index 6ef6982aea..de506004ee 100644
--- a/library/cpp/lwtrace/shuttle.cpp
+++ b/library/cpp/lwtrace/shuttle.cpp
@@ -1,20 +1,20 @@
-#include "shuttle.h"
-
-#include "probes.h"
-
-#include <util/system/backtrace.h>
-#include <util/stream/str.h>
-
-namespace NLWTrace {
-    LWTRACE_USING(LWTRACE_INTERNAL_PROVIDER);
-
-    inline TString CurrentBackTrace() {
-        TStringStream ss;
-        FormatBackTrace(&ss);
-        return ss.Str();
-    }
-
-    void TOrbit::LockFailed() {
-        LWPROBE(OrbitIsUsedConcurrentlyError, CurrentBackTrace());
-    }
-} // namespace NLWTrace
+#include "shuttle.h" 
+ 
+#include "probes.h" 
+ 
+#include <util/system/backtrace.h> 
+#include <util/stream/str.h> 
+ 
+namespace NLWTrace { 
+    LWTRACE_USING(LWTRACE_INTERNAL_PROVIDER); 
+ 
+    inline TString CurrentBackTrace() { 
+        TStringStream ss; 
+        FormatBackTrace(&ss); 
+        return ss.Str(); 
+    } 
+ 
+    void TOrbit::LockFailed() { 
+        LWPROBE(OrbitIsUsedConcurrentlyError, CurrentBackTrace()); 
+    } 
+} // namespace NLWTrace 
diff --git a/library/cpp/lwtrace/shuttle.h b/library/cpp/lwtrace/shuttle.h
index 85c6e4da61..24c38e4c47 100644
--- a/library/cpp/lwtrace/shuttle.h
+++ b/library/cpp/lwtrace/shuttle.h
@@ -1,45 +1,45 @@
-#pragma once
-
+#pragma once 
+ 
 #include "event.h"
 
 #include <library/cpp/containers/stack_vector/stack_vec.h>
 
-#include <util/generic/ptr.h>
-#include <util/system/spinlock.h>
-
+#include <util/generic/ptr.h> 
+#include <util/system/spinlock.h> 
+ 
 #include <algorithm>
-#include <type_traits>
-
-namespace NLWTrace {
-    struct TProbe;
-
-    class IShuttle;
-    using TShuttlePtr = TIntrusivePtr<IShuttle>;
-
-    // Represents interface of tracing context passing by application between probes
-    class alignas(8) IShuttle: public TThrRefBase {
-    private:
-        ui64 TraceIdx;
+#include <type_traits> 
+
+namespace NLWTrace { 
+    struct TProbe; 
+ 
+    class IShuttle; 
+    using TShuttlePtr = TIntrusivePtr<IShuttle>; 
+ 
+    // Represents interface of tracing context passing by application between probes 
+    class alignas(8) IShuttle: public TThrRefBase { 
+    private: 
+        ui64 TraceIdx; 
         ui64 SpanId;
         ui64 ParentSpanId = 0;
-        TAtomic Status = 0;
-        static constexpr ui64 DeadFlag = 0x1ull;
-        TShuttlePtr Next;
-
-    public:
+        TAtomic Status = 0; 
+        static constexpr ui64 DeadFlag = 0x1ull; 
+        TShuttlePtr Next; 
+ 
+    public: 
         explicit IShuttle(ui64 traceIdx, ui64 spanId)
-            : TraceIdx(traceIdx)
+            : TraceIdx(traceIdx) 
             , SpanId(spanId)
-        {
-        }
-
-        virtual ~IShuttle() {
-        }
-
-        ui64 GetTraceIdx() const {
-            return TraceIdx;
-        }
-
+        { 
+        } 
+ 
+        virtual ~IShuttle() { 
+        } 
+ 
+        ui64 GetTraceIdx() const { 
+            return TraceIdx; 
+        } 
+ 
         ui64 GetSpanId() const {
             return SpanId;
         }
@@ -52,130 +52,130 @@ namespace NLWTrace {
             ParentSpanId = parentSpanId;
         }
 
-        template <class F, class R>
-        R UnlessDead(F func, R dead) {
-            while (true) {
-                ui64 status = AtomicGet(Status);
-                if (status & DeadFlag) {
-                    return dead;
-                }
-                if (AtomicCas(&Status, status + 2, status)) {
-                    R result = func();
-                    ATOMIC_COMPILER_BARRIER();
-                    AtomicSub(Status, 2);
-                    return result;
-                }
-            }
-        }
-
-        template <class F>
-        void UnlessDead(F func) {
-            while (true) {
-                ui64 status = AtomicGet(Status);
-                if (status & DeadFlag) {
-                    return;
-                }
-                if (AtomicCas(&Status, status + 2, status)) {
-                    func();
-                    ATOMIC_COMPILER_BARRIER();
-                    AtomicSub(Status, 2);
-                    return;
-                }
+        template <class F, class R> 
+        R UnlessDead(F func, R dead) { 
+            while (true) { 
+                ui64 status = AtomicGet(Status); 
+                if (status & DeadFlag) { 
+                    return dead; 
+                } 
+                if (AtomicCas(&Status, status + 2, status)) { 
+                    R result = func(); 
+                    ATOMIC_COMPILER_BARRIER(); 
+                    AtomicSub(Status, 2); 
+                    return result; 
+                } 
             }
         }
 
-        void Serialize(TShuttleTrace& msg) {
-            UnlessDead([&] {
-                DoSerialize(msg);
-            });
-        }
-
-        // Returns false iff shuttle should be destroyed
+        template <class F> 
+        void UnlessDead(F func) { 
+            while (true) { 
+                ui64 status = AtomicGet(Status); 
+                if (status & DeadFlag) { 
+                    return; 
+                } 
+                if (AtomicCas(&Status, status + 2, status)) { 
+                    func(); 
+                    ATOMIC_COMPILER_BARRIER(); 
+                    AtomicSub(Status, 2); 
+                    return; 
+                } 
+            } 
+        } 
+ 
+        void Serialize(TShuttleTrace& msg) { 
+            UnlessDead([&] { 
+                DoSerialize(msg); 
+            }); 
+        } 
+ 
+        // Returns false iff shuttle should be destroyed 
         bool AddProbe(TProbe* probe, const TParams& params, ui64 timestamp = 0) {
-            return UnlessDead([&] {
-                return DoAddProbe(probe, params, timestamp);
-            }, false);
-        }
-
-        // Track object was destroyed
-        void EndOfTrack() {
-            if (Next) {
-                Next->EndOfTrack();
-                Next.Reset();
-            }
-            UnlessDead([&] {
-                DoEndOfTrack();
-            });
-        }
-
-        // Shuttle was dropped from orbit
-        TShuttlePtr Drop() {
-            UnlessDead([&] {
-                DoDrop();
-            });
+            return UnlessDead([&] { 
+                return DoAddProbe(probe, params, timestamp); 
+            }, false); 
+        } 
+ 
+        // Track object was destroyed 
+        void EndOfTrack() { 
+            if (Next) { 
+                Next->EndOfTrack(); 
+                Next.Reset(); 
+            } 
+            UnlessDead([&] { 
+                DoEndOfTrack(); 
+            }); 
+        } 
+ 
+        // Shuttle was dropped from orbit 
+        TShuttlePtr Drop() { 
+            UnlessDead([&] { 
+                DoDrop(); 
+            }); 
             return Detach(); // Detached from orbit on Drop
         }
 
         TShuttlePtr Detach() {
-            TShuttlePtr result;
+            TShuttlePtr result; 
             result.Swap(Next);
-            return result;
-        }
-
-        // Trace session was destroyed
-        void Kill() {
-            AtomicAdd(Status, 1); // Sets DeadFlag
-            while (AtomicGet(Status) != 1) { // Wait until any vcall is over
-                SpinLockPause();
-            }
-            // After this point all virtual calls on shuttle are disallowed
-            ATOMIC_COMPILER_BARRIER();
-        }
-
-        const TShuttlePtr& GetNext() const {
-            return Next;
-        }
-
-        TShuttlePtr& GetNext() {
-            return Next;
-        }
-
-        void SetNext(const TShuttlePtr& next) {
-            Next = next;
-        }
-
-        bool Fork(TShuttlePtr& child) {
-            return UnlessDead([&] {
-                return DoFork(child);
-            }, true);
+            return result; 
+        } 
+ 
+        // Trace session was destroyed 
+        void Kill() { 
+            AtomicAdd(Status, 1); // Sets DeadFlag 
+            while (AtomicGet(Status) != 1) { // Wait until any vcall is over 
+                SpinLockPause(); 
+            } 
+            // After this point all virtual calls on shuttle are disallowed 
+            ATOMIC_COMPILER_BARRIER(); 
+        } 
+ 
+        const TShuttlePtr& GetNext() const { 
+            return Next; 
+        } 
+ 
+        TShuttlePtr& GetNext() { 
+            return Next; 
+        } 
+ 
+        void SetNext(const TShuttlePtr& next) { 
+            Next = next; 
+        } 
+ 
+        bool Fork(TShuttlePtr& child) { 
+            return UnlessDead([&] { 
+                return DoFork(child); 
+            }, true); 
         }
 
         bool Join(TShuttlePtr& child) {
-            return UnlessDead([&] {
-                return DoJoin(child);
-            }, false);
+            return UnlessDead([&] { 
+                return DoJoin(child); 
+            }, false); 
         }
 
         bool IsDead() {
             return AtomicGet(Status) & DeadFlag;
         }
 
-    protected:
+    protected: 
         virtual bool DoAddProbe(TProbe* probe, const TParams& params, ui64 timestamp) = 0;
-        virtual void DoEndOfTrack() = 0;
-        virtual void DoDrop() = 0;
+        virtual void DoEndOfTrack() = 0; 
+        virtual void DoDrop() = 0; 
         virtual void DoSerialize(TShuttleTrace& msg) = 0;
-        virtual bool DoFork(TShuttlePtr& child) = 0;
+        virtual bool DoFork(TShuttlePtr& child) = 0; 
         virtual bool DoJoin(const TShuttlePtr& child) = 0;
-    };
-
-    // Not thread-safe orbit
-    // Orbit should not be used concurrenty, lock is used
-    // to ensure this is the case and avoid race condition if not.
-    class TOrbit {
-    private:
-        TShuttlePtr HeadNoLock;
-    public:
+    }; 
+ 
+    // Not thread-safe orbit 
+    // Orbit should not be used concurrenty, lock is used 
+    // to ensure this is the case and avoid race condition if not. 
+    class TOrbit { 
+    private: 
+        TShuttlePtr HeadNoLock; 
+    public: 
         TOrbit() = default;
         TOrbit(const TOrbit&) = delete;
         TOrbit(TOrbit&&) = default;
@@ -183,135 +183,135 @@ namespace NLWTrace {
         TOrbit& operator=(const TOrbit&) = delete;
         TOrbit& operator=(TOrbit&&) = default;
 
-        ~TOrbit() {
-            Reset();
-        }
-
-        void Reset() {
-            NotConcurrent([] (TShuttlePtr& head) {
-                if (head) {
-                    head->EndOfTrack();
-                    head.Reset();
-                }
-            });
-        }
-
-        // Checks if there is at least one shuttle in orbit
-        // NOTE: used by every LWTRACK macro check, so keep it optimized - do not lock
-        bool HasShuttles() const {
-            return HeadNoLock.Get();
-        }
-
-        void AddShuttle(const TShuttlePtr& shuttle) {
-            NotConcurrent([&] (TShuttlePtr& head) {
-                Y_VERIFY(!shuttle->GetNext());
-                shuttle->SetNext(head);
-                head = shuttle;
-            });
-        }
-
-        // Moves every shuttle from `orbit' into this
-        void Take(TOrbit& orbit) {
-            NotConcurrent([&] (TShuttlePtr& head) {
-                orbit.NotConcurrent([&] (TShuttlePtr& oHead) {
-                    TShuttlePtr* ref = &oHead;
-                    if (ref->Get()) {
-                        while (TShuttlePtr& next = (*ref)->GetNext()) {
-                            ref = &next;
-                        }
-                        (*ref)->SetNext(head);
-                        head.Swap(oHead);
-                        oHead.Reset();
-                    }
-                });
-            });
-        }
-
+        ~TOrbit() { 
+            Reset(); 
+        } 
+ 
+        void Reset() { 
+            NotConcurrent([] (TShuttlePtr& head) { 
+                if (head) { 
+                    head->EndOfTrack(); 
+                    head.Reset(); 
+                } 
+            }); 
+        } 
+ 
+        // Checks if there is at least one shuttle in orbit 
+        // NOTE: used by every LWTRACK macro check, so keep it optimized - do not lock 
+        bool HasShuttles() const { 
+            return HeadNoLock.Get(); 
+        } 
+ 
+        void AddShuttle(const TShuttlePtr& shuttle) { 
+            NotConcurrent([&] (TShuttlePtr& head) { 
+                Y_VERIFY(!shuttle->GetNext()); 
+                shuttle->SetNext(head); 
+                head = shuttle; 
+            }); 
+        } 
+ 
+        // Moves every shuttle from `orbit' into this 
+        void Take(TOrbit& orbit) { 
+            NotConcurrent([&] (TShuttlePtr& head) { 
+                orbit.NotConcurrent([&] (TShuttlePtr& oHead) { 
+                    TShuttlePtr* ref = &oHead; 
+                    if (ref->Get()) { 
+                        while (TShuttlePtr& next = (*ref)->GetNext()) { 
+                            ref = &next; 
+                        } 
+                        (*ref)->SetNext(head); 
+                        head.Swap(oHead); 
+                        oHead.Reset(); 
+                    } 
+                }); 
+            }); 
+        } 
+ 
         void AddProbe(TProbe* probe, const TParams& params, ui64 timestamp = 0) {
-            NotConcurrent([&] (TShuttlePtr& head) {
-                TShuttlePtr* ref = &head;
-                while (IShuttle* s = ref->Get()) {
-                    if (!s->AddProbe(probe, params, timestamp)) { // Shuttle self-destructed
-                        *ref = s->Drop(); // May destroy shuttle
-                    } else {
-                        ref = &s->GetNext(); // Keep shuttle
-                    }
-                }
-            });
-        }
-
-        template <class TFunc>
-        void ForEachShuttle(ui64 traceIdx, TFunc&& func) {
-            NotConcurrent([&] (TShuttlePtr& head) {
-                TShuttlePtr* ref = &head;
-                while (IShuttle* s = ref->Get()) {
-                    if (s->GetTraceIdx() == traceIdx && !func(s)) { // Shuttle self-destructed
-                        *ref = s->Drop(); // May destroy shuttle
-                    } else {
-                        ref = &s->GetNext(); // Keep shuttle
-                    }
-                }
-            });
-        }
-
-        void Serialize(ui64 traceIdx, TShuttleTrace& msg) {
-            ForEachShuttle(traceIdx, [&] (NLWTrace::IShuttle* shuttle) {
+            NotConcurrent([&] (TShuttlePtr& head) { 
+                TShuttlePtr* ref = &head; 
+                while (IShuttle* s = ref->Get()) { 
+                    if (!s->AddProbe(probe, params, timestamp)) { // Shuttle self-destructed 
+                        *ref = s->Drop(); // May destroy shuttle 
+                    } else { 
+                        ref = &s->GetNext(); // Keep shuttle 
+                    } 
+                } 
+            }); 
+        } 
+ 
+        template <class TFunc> 
+        void ForEachShuttle(ui64 traceIdx, TFunc&& func) { 
+            NotConcurrent([&] (TShuttlePtr& head) { 
+                TShuttlePtr* ref = &head; 
+                while (IShuttle* s = ref->Get()) { 
+                    if (s->GetTraceIdx() == traceIdx && !func(s)) { // Shuttle self-destructed 
+                        *ref = s->Drop(); // May destroy shuttle 
+                    } else { 
+                        ref = &s->GetNext(); // Keep shuttle 
+                    } 
+                } 
+            }); 
+        } 
+
+        void Serialize(ui64 traceIdx, TShuttleTrace& msg) { 
+            ForEachShuttle(traceIdx, [&] (NLWTrace::IShuttle* shuttle) { 
                 shuttle->Serialize(msg);
                 return false;
             });
         }
 
-        bool HasShuttle(ui64 traceIdx) {
-            return NotConcurrent([=] (TShuttlePtr& head) {
-                TShuttlePtr ref = head;
-                while (IShuttle* s = ref.Get()) {
-                    if (s->GetTraceIdx() == traceIdx) {
-                        return true;
-                    } else {
-                        ref = s->GetNext();
-                    }
+        bool HasShuttle(ui64 traceIdx) { 
+            return NotConcurrent([=] (TShuttlePtr& head) { 
+                TShuttlePtr ref = head; 
+                while (IShuttle* s = ref.Get()) { 
+                    if (s->GetTraceIdx() == traceIdx) { 
+                        return true; 
+                    } else { 
+                        ref = s->GetNext(); 
+                    } 
                 }
-                return false;
-            });
+                return false; 
+            }); 
         }
 
         bool Fork(TOrbit& child) {
-            return NotConcurrent([&] (TShuttlePtr& head) {
-                return child.NotConcurrent([&] (TShuttlePtr& cHead) {
-                    bool result = true;
-                    TShuttlePtr* ref = &head;
-                    while (IShuttle* shuttle = ref->Get()) {
-                        if (shuttle->IsDead()) {
-                            *ref = shuttle->Drop();
-                        } else {
-                            result = result && shuttle->Fork(cHead);
-                            ref = &shuttle->GetNext();
-                        }
-                    }
-                    return result;
-                });
-            });
+            return NotConcurrent([&] (TShuttlePtr& head) { 
+                return child.NotConcurrent([&] (TShuttlePtr& cHead) { 
+                    bool result = true; 
+                    TShuttlePtr* ref = &head; 
+                    while (IShuttle* shuttle = ref->Get()) { 
+                        if (shuttle->IsDead()) { 
+                            *ref = shuttle->Drop(); 
+                        } else { 
+                            result = result && shuttle->Fork(cHead); 
+                            ref = &shuttle->GetNext(); 
+                        } 
+                    } 
+                    return result; 
+                }); 
+            }); 
         }
 
         void Join(TOrbit& child) {
-            NotConcurrent([&] (TShuttlePtr& head) {
-                child.NotConcurrent([&] (TShuttlePtr& cHead) {
-                    TShuttlePtr* ref = &head;
-                    while (IShuttle* shuttle = ref->Get()) {
-                        if (shuttle->IsDead()) {
-                            *ref = shuttle->Drop();
-                        } else {
-                            child.Join(cHead, shuttle);
-                            ref = &shuttle->GetNext();
-                        }
-                    }
-                });
-            });
-        }
-
-    private:
-        static void Join(TShuttlePtr& head, IShuttle* parent) {
-            TShuttlePtr* ref = &head;
+            NotConcurrent([&] (TShuttlePtr& head) { 
+                child.NotConcurrent([&] (TShuttlePtr& cHead) { 
+                    TShuttlePtr* ref = &head; 
+                    while (IShuttle* shuttle = ref->Get()) { 
+                        if (shuttle->IsDead()) { 
+                            *ref = shuttle->Drop(); 
+                        } else { 
+                            child.Join(cHead, shuttle); 
+                            ref = &shuttle->GetNext(); 
+                        } 
+                    } 
+                }); 
+            }); 
+        }
+
+    private: 
+        static void Join(TShuttlePtr& head, IShuttle* parent) { 
+            TShuttlePtr* ref = &head; 
             while (IShuttle* child = ref->Get()) {
                 if (parent->GetTraceIdx() == child->GetTraceIdx() && parent->GetSpanId() == child->GetParentSpanId()) {
                     TShuttlePtr next = child->Detach();
@@ -322,37 +322,37 @@ namespace NLWTrace {
                 }
             }
         }
-
-        template <class TFunc>
-        typename std::invoke_result<TFunc, TShuttlePtr&>::type NotConcurrent(TFunc func) {
-            // `HeadNoLock` is binary-copied into local `headCopy` and written with special `locked` value
-            // during not concurrent operations. Not concurrent operations should not work
-            // with `HeadNoLock` directly. Instead `headCopy` is passed into `func` by reference and
-            // after `func()` it is binary-copied back into `HeadNoLock`.
-            static_assert(sizeof(HeadNoLock) == sizeof(TAtomic));
-            TAtomic* headPtr = reinterpret_cast<TAtomic*>(&HeadNoLock);
-            TAtomicBase headCopy = AtomicGet(*headPtr);
-            static constexpr TAtomicBase locked = 0x1ull;
-            if (headCopy != locked && AtomicCas(headPtr, locked, headCopy)) {
-                struct TUnlocker { // to avoid specialization for R=void
-                    TAtomic* HeadPtr;
-                    TAtomicBase* HeadCopy;
-                    ~TUnlocker() {
-                        ATOMIC_COMPILER_BARRIER();
-                        AtomicSet(*HeadPtr, *HeadCopy);
-                    }
-                } scoped{headPtr, &headCopy};
-                return func(*reinterpret_cast<TShuttlePtr*>(&headCopy));
-            } else {
-                LockFailed();
-                return typename std::invoke_result<TFunc, TShuttlePtr&>::type();
-            }
-        }
-
-        void LockFailed();
-    };
-
-    inline size_t HasShuttles(const TOrbit& orbit) {
-        return orbit.HasShuttles();
-    }
-}
+ 
+        template <class TFunc> 
+        typename std::invoke_result<TFunc, TShuttlePtr&>::type NotConcurrent(TFunc func) { 
+            // `HeadNoLock` is binary-copied into local `headCopy` and written with special `locked` value 
+            // during not concurrent operations. Not concurrent operations should not work 
+            // with `HeadNoLock` directly. Instead `headCopy` is passed into `func` by reference and 
+            // after `func()` it is binary-copied back into `HeadNoLock`. 
+            static_assert(sizeof(HeadNoLock) == sizeof(TAtomic)); 
+            TAtomic* headPtr = reinterpret_cast<TAtomic*>(&HeadNoLock); 
+            TAtomicBase headCopy = AtomicGet(*headPtr); 
+            static constexpr TAtomicBase locked = 0x1ull; 
+            if (headCopy != locked && AtomicCas(headPtr, locked, headCopy)) { 
+                struct TUnlocker { // to avoid specialization for R=void 
+                    TAtomic* HeadPtr; 
+                    TAtomicBase* HeadCopy; 
+                    ~TUnlocker() { 
+                        ATOMIC_COMPILER_BARRIER(); 
+                        AtomicSet(*HeadPtr, *HeadCopy); 
+                    } 
+                } scoped{headPtr, &headCopy}; 
+                return func(*reinterpret_cast<TShuttlePtr*>(&headCopy)); 
+            } else { 
+                LockFailed(); 
+                return typename std::invoke_result<TFunc, TShuttlePtr&>::type(); 
+            } 
+        } 
+ 
+        void LockFailed(); 
+    }; 
+ 
+    inline size_t HasShuttles(const TOrbit& orbit) { 
+        return orbit.HasShuttles(); 
+    } 
+} 
diff --git a/library/cpp/lwtrace/signature.h b/library/cpp/lwtrace/signature.h
index 868bd9bcf2..87ce835228 100644
--- a/library/cpp/lwtrace/signature.h
+++ b/library/cpp/lwtrace/signature.h
@@ -1,16 +1,16 @@
-#pragma once
-
+#pragma once 
+ 
 #include "preprocessor.h"
 
 #include <library/cpp/lwtrace/protos/lwtrace.pb.h>
 
 #include <util/generic/cast.h>
 #include <util/generic/string.h>
-#include <util/generic/typetraits.h>
+#include <util/generic/typetraits.h> 
 #include <util/string/builder.h>
-#include <util/string/cast.h>
-#include <util/string/printf.h>
-
+#include <util/string/cast.h> 
+#include <util/string/printf.h> 
+ 
 #include <google/protobuf/descriptor.h>
 #include <google/protobuf/generated_enum_reflection.h>
 
@@ -18,407 +18,407 @@
 
 #include <type_traits>
 
-namespace NLWTrace {
-    // Class to hold parameter values parsed from trace query predicate operators
-    template <class T>
-    struct TParamConv {
-        static T FromString(const TString& text) {
-            return ::FromString<T>(text);
-        }
-        static TString ToString(const T& param) {
-            return ::ToString(param);
-        }
-    };
-
-    template <>
-    struct TParamConv<TString const*> {
-        static TString FromString(const TString& text) {
-            return text;
-        }
-        static TString ToString(TString const* param) {
-            return TString(*param);
-        }
-    };
-
-    template <>
-    struct TParamConv<ui8> {
-        static ui8 FromString(const TString& text) {
-            return (ui8)::FromString<ui16>(text);
-        }
-        static TString ToString(ui8 param) {
-            return ::ToString((ui16)param);
-        }
-    };
-
-    template <>
-    struct TParamConv<i8> {
-        static i8 FromString(const TString& text) {
-            return (i8)::FromString<i16>(text);
-        }
-        static TString ToString(i8 param) {
-            return ::ToString((i16)param);
-        }
-    };
-
-    template <>
-    struct TParamConv<double> {
-        static double FromString(const TString& text) {
-            return ::FromString<double>(text);
-        }
-        static TString ToString(double param) {
-            return Sprintf("%.6lf", param);
-        }
-    };
-
-    // Fake parameter type used as a placeholder for not used parameters (above the number of defined params for a specific probe)
-    class TNil {
-    };
-
-    // Struct that holds and handles a value of parameter of any supported type.
-    struct TParam {
-        char Data[LWTRACE_MAX_PARAM_SIZE];
-
-        template <class T>
-        const T& Get() const {
+namespace NLWTrace { 
+    // Class to hold parameter values parsed from trace query predicate operators 
+    template <class T> 
+    struct TParamConv { 
+        static T FromString(const TString& text) { 
+            return ::FromString<T>(text); 
+        } 
+        static TString ToString(const T& param) { 
+            return ::ToString(param); 
+        } 
+    }; 
+ 
+    template <> 
+    struct TParamConv<TString const*> { 
+        static TString FromString(const TString& text) { 
+            return text; 
+        } 
+        static TString ToString(TString const* param) { 
+            return TString(*param); 
+        } 
+    }; 
+ 
+    template <> 
+    struct TParamConv<ui8> { 
+        static ui8 FromString(const TString& text) { 
+            return (ui8)::FromString<ui16>(text); 
+        } 
+        static TString ToString(ui8 param) { 
+            return ::ToString((ui16)param); 
+        } 
+    }; 
+ 
+    template <> 
+    struct TParamConv<i8> { 
+        static i8 FromString(const TString& text) { 
+            return (i8)::FromString<i16>(text); 
+        } 
+        static TString ToString(i8 param) { 
+            return ::ToString((i16)param); 
+        } 
+    }; 
+ 
+    template <> 
+    struct TParamConv<double> { 
+        static double FromString(const TString& text) { 
+            return ::FromString<double>(text); 
+        } 
+        static TString ToString(double param) { 
+            return Sprintf("%.6lf", param); 
+        } 
+    }; 
+ 
+    // Fake parameter type used as a placeholder for not used parameters (above the number of defined params for a specific probe) 
+    class TNil { 
+    }; 
+ 
+    // Struct that holds and handles a value of parameter of any supported type. 
+    struct TParam { 
+        char Data[LWTRACE_MAX_PARAM_SIZE]; 
+ 
+        template <class T> 
+        const T& Get() const { 
             return *reinterpret_cast<const T*>(Data);
-        }
-
-        template <class T>
-        T& Get() {
+        } 
+ 
+        template <class T> 
+        T& Get() { 
             return *reinterpret_cast<T*>(Data);
-        }
-
-        template <class T>
-        void DefaultConstruct() {
-            new (&Data) T();
-        }
-
-        template <class T>
-        void CopyConstruct(const T& other) {
-            new (&Data) T(other);
-        }
-
-        template <class T>
-        void Destruct() {
-            Get<T>().~T();
-        }
-    };
-
-    template <>
-    inline void TParam::DefaultConstruct<TNil>() {
-    }
-
-    template <>
-    inline void TParam::CopyConstruct<TNil>(const TNil&) {
-    }
-
-    template <>
-    inline void TParam::Destruct<TNil>() {
-    }
-
-    class TTypedParam {
-    private:
-        EParamTypePb Type;
-        TParam Param; // Contains garbage if PT_UNKNOWN
-    public:
-        TTypedParam()
-            : Type(PT_UNKNOWN)
-        {
-        }
-
-        explicit TTypedParam(EParamTypePb type)
-            : Type(type)
-        {
-            switch (Type) {
-#define FOREACH_PARAMTYPE_MACRO(n, t, v) \
-    case PT_##v:                         \
-        Param.DefaultConstruct<t>();     \
-        return;
-                FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO)
-#undef FOREACH_PARAMTYPE_MACRO
-                case PT_UNKNOWN:
-                    return;
-                default:
-                    Y_FAIL("unknown param type");
-            }
-        }
-
-        template <class T>
-        explicit TTypedParam(const T& x, EParamTypePb type = PT_UNKNOWN)
-            : Type(type)
-        {
-            Param.CopyConstruct<T>(x);
-        }
-
-#define FOREACH_PARAMTYPE_MACRO(n, t, v) \
-    explicit TTypedParam(const t& x)     \
-        : Type(PT_##v) {                 \
-        Param.CopyConstruct<t>(x);       \
-    }
-        FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO)
-#undef FOREACH_PARAMTYPE_MACRO
-
-        TTypedParam(const TTypedParam& o) {
-            Assign(o);
-        }
-
-        TTypedParam& operator=(const TTypedParam& o) {
-            Reset();
-            Assign(o);
-            return *this;
-        }
-
-        void Assign(const TTypedParam& o) {
-            Type = o.Type;
-            switch (Type) {
-#define FOREACH_PARAMTYPE_MACRO(n, t, v)          \
-    case PT_##v:                                  \
-        Param.CopyConstruct<t>(o.Param.Get<t>()); \
-        return;
-                FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO)
-#undef FOREACH_PARAMTYPE_MACRO
-                case PT_UNKNOWN:
-                    return;
-                default:
-                    Y_FAIL("unknown param type");
-            }
-        }
-
-        TTypedParam(TTypedParam&& o)
-            : Type(o.Type)
-            , Param(o.Param)
-        {
-            o.Type = PT_UNKNOWN; // To avoid Param destroy by source object dtor
-        }
-
-        TTypedParam(EParamTypePb type, const TParam& param)
-            : Type(type)
-        {
-            Y_UNUSED(param); // for disabled lwtrace
-            switch (Type) {
-#define FOREACH_PARAMTYPE_MACRO(n, t, v)        \
-    case PT_##v:                                \
-        Param.CopyConstruct<t>(param.Get<t>()); \
-        return;
-                FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO)
-#undef FOREACH_PARAMTYPE_MACRO
-                case PT_UNKNOWN:
-                    return;
-                default:
-                    Y_FAIL("unknown param type");
-            }
-        }
-
-        ~TTypedParam() {
-            Reset();
-        }
-
-        void Reset() {
-            switch (Type) {
-#define FOREACH_PARAMTYPE_MACRO(n, t, v) \
-    case PT_##v:                         \
-        Param.Destruct<t>();             \
-        return;
-                FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO)
-#undef FOREACH_PARAMTYPE_MACRO
-                case PT_UNKNOWN:
-                    return;
-                default:
-                    Y_FAIL("unknown param type");
-            }
-            Type = PT_UNKNOWN;
-        }
-
-        bool operator==(const TTypedParam& rhs) const {
-            if (Y_LIKELY(Type == rhs.Type)) {
-                switch (Type) {
-#define FOREACH_PARAMTYPE_MACRO(n, t, v) \
-    case PT_##v:                         \
-        return Param.Get<t>() == rhs.Param.Get<t>();
-                    FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO)
-#undef FOREACH_PARAMTYPE_MACRO
-                    case PT_UNKNOWN:
-                        return false; // All unknowns are equal
-                    default:
-                        Y_FAIL("unknown param type");
-                }
-            } else {
-                return false;
-            }
-        }
-        bool operator!=(const TTypedParam& rhs) const {
-            return !operator==(rhs);
-        }
-
-        bool operator<(const TTypedParam& rhs) const {
-            if (Y_LIKELY(Type == rhs.Type)) {
-                switch (Type) {
-#define FOREACH_PARAMTYPE_MACRO(n, t, v) \
-    case PT_##v:                         \
-        return Param.Get<t>() < rhs.Param.Get<t>();
-                    FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO)
-#undef FOREACH_PARAMTYPE_MACRO
-                    case PT_UNKNOWN:
-                        return false; // All unknowns are equal
-                    default:
-                        Y_FAIL("unknown param type");
-                }
-            } else {
-                return Type < rhs.Type;
-            }
-        }
-
-        bool operator<=(const TTypedParam& rhs) const {
-            if (Y_LIKELY(Type == rhs.Type)) {
-                switch (Type) {
-#define FOREACH_PARAMTYPE_MACRO(n, t, v) \
-    case PT_##v:                         \
-        return Param.Get<t>() <= rhs.Param.Get<t>();
-                    FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO)
-#undef FOREACH_PARAMTYPE_MACRO
-                    case PT_UNKNOWN:
-                        return true; // All unknowns are equal
-                    default:
-                        Y_FAIL("unknown param type");
-                }
-            } else {
-                return Type < rhs.Type;
-            }
-        }
-
-        bool operator>(const TTypedParam& rhs) const {
-            return !operator<=(rhs);
-        }
-        bool operator>=(const TTypedParam& rhs) const {
-            return !operator<(rhs);
-        }
-
-        EParamTypePb GetType() const {
-            return Type;
-        }
-        const TParam& GetParam() const {
-            return Param;
-        }
-    };
-
-    class TLiteral {
-    private:
-        TTypedParam Values[EParamTypePb_ARRAYSIZE];
-
-    public:
-        explicit TLiteral(const TString& text) {
-            Y_UNUSED(text); /* That's for windows, where we have lwtrace disabled. */
-
-#define FOREACH_PARAMTYPE_MACRO(n, t, v)                               \
-    try {                                                              \
-        Values[PT_##v] = TTypedParam(TParamConv<t>::FromString(text)); \
-    } catch (...) {                                                    \
-        Values[PT_##v] = TTypedParam();                                \
-    }                                                                  \
-    /**/
-            FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO)
-#undef FOREACH_PARAMTYPE_MACRO
-        }
-
-        TLiteral() {
-        }
-
-        TLiteral(const TLiteral& o) {
-            for (size_t i = 0; i < EParamTypePb_ARRAYSIZE; i++) {
-                Values[i] = o.Values[i];
-            }
-        }
-
-        TLiteral& operator=(const TLiteral& o) {
-            for (size_t i = 0; i < EParamTypePb_ARRAYSIZE; i++) {
-                Values[i] = o.Values[i];
-            }
-            return *this;
-        }
-
-        const TTypedParam& GetValue(EParamTypePb type) const {
-            return Values[type];
-        }
-
-        bool operator==(const TTypedParam& rhs) const {
-            return Values[rhs.GetType()] == rhs;
-        }
-        bool operator!=(const TTypedParam& rhs) const {
-            return !operator==(rhs);
-        }
-
-        bool operator<(const TTypedParam& rhs) const {
-            return Values[rhs.GetType()] < rhs;
-        }
-
-        bool operator<=(const TTypedParam& rhs) const {
-            return Values[rhs.GetType()] <= rhs;
-        }
-
-        bool operator>(const TTypedParam& rhs) const {
-            return !operator<=(rhs);
-        }
-        bool operator>=(const TTypedParam& rhs) const {
-            return !operator<(rhs);
-        }
-    };
-
-    inline bool operator==(const TTypedParam& lhs, const TLiteral& rhs) {
-        return lhs == rhs.GetValue(lhs.GetType());
-    }
-    inline bool operator!=(const TTypedParam& lhs, const TLiteral& rhs) {
-        return !operator==(lhs, rhs);
-    }
-
-    inline bool operator<(const TTypedParam& lhs, const TLiteral& rhs) {
-        return lhs < rhs.GetValue(lhs.GetType());
-    }
-
-    inline bool operator<=(const TTypedParam& lhs, const TLiteral& rhs) {
-        return lhs <= rhs.GetValue(lhs.GetType());
-    }
-
-    inline bool operator>(const TTypedParam& lhs, const TLiteral& rhs) {
-        return !operator<=(lhs, rhs);
-    }
-    inline bool operator>=(const TTypedParam& lhs, const TLiteral& rhs) {
-        return !operator<(lhs, rhs);
-    }
-
-    // Struct that holds and handles all parameter values of different supported types
-    struct TParams {
-        TParam Param[LWTRACE_MAX_PARAMS];
-    };
-
+        } 
+ 
+        template <class T> 
+        void DefaultConstruct() { 
+            new (&Data) T(); 
+        } 
+ 
+        template <class T> 
+        void CopyConstruct(const T& other) { 
+            new (&Data) T(other); 
+        } 
+ 
+        template <class T> 
+        void Destruct() { 
+            Get<T>().~T(); 
+        } 
+    }; 
+ 
+    template <> 
+    inline void TParam::DefaultConstruct<TNil>() { 
+    } 
+ 
+    template <> 
+    inline void TParam::CopyConstruct<TNil>(const TNil&) { 
+    } 
+ 
+    template <> 
+    inline void TParam::Destruct<TNil>() { 
+    } 
+ 
+    class TTypedParam { 
+    private: 
+        EParamTypePb Type; 
+        TParam Param; // Contains garbage if PT_UNKNOWN 
+    public: 
+        TTypedParam() 
+            : Type(PT_UNKNOWN) 
+        { 
+        } 
+ 
+        explicit TTypedParam(EParamTypePb type) 
+            : Type(type) 
+        { 
+            switch (Type) { 
+#define FOREACH_PARAMTYPE_MACRO(n, t, v) \ 
+    case PT_##v:                         \ 
+        Param.DefaultConstruct<t>();     \ 
+        return; 
+                FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO) 
+#undef FOREACH_PARAMTYPE_MACRO 
+                case PT_UNKNOWN: 
+                    return; 
+                default: 
+                    Y_FAIL("unknown param type"); 
+            } 
+        } 
+ 
+        template <class T> 
+        explicit TTypedParam(const T& x, EParamTypePb type = PT_UNKNOWN) 
+            : Type(type) 
+        { 
+            Param.CopyConstruct<T>(x); 
+        } 
+ 
+#define FOREACH_PARAMTYPE_MACRO(n, t, v) \ 
+    explicit TTypedParam(const t& x)     \ 
+        : Type(PT_##v) {                 \ 
+        Param.CopyConstruct<t>(x);       \ 
+    } 
+        FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO) 
+#undef FOREACH_PARAMTYPE_MACRO 
+ 
+        TTypedParam(const TTypedParam& o) { 
+            Assign(o); 
+        } 
+ 
+        TTypedParam& operator=(const TTypedParam& o) { 
+            Reset(); 
+            Assign(o); 
+            return *this; 
+        } 
+ 
+        void Assign(const TTypedParam& o) { 
+            Type = o.Type; 
+            switch (Type) { 
+#define FOREACH_PARAMTYPE_MACRO(n, t, v)          \ 
+    case PT_##v:                                  \ 
+        Param.CopyConstruct<t>(o.Param.Get<t>()); \ 
+        return; 
+                FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO) 
+#undef FOREACH_PARAMTYPE_MACRO 
+                case PT_UNKNOWN: 
+                    return; 
+                default: 
+                    Y_FAIL("unknown param type"); 
+            } 
+        } 
+ 
+        TTypedParam(TTypedParam&& o) 
+            : Type(o.Type) 
+            , Param(o.Param) 
+        { 
+            o.Type = PT_UNKNOWN; // To avoid Param destroy by source object dtor 
+        } 
+ 
+        TTypedParam(EParamTypePb type, const TParam& param) 
+            : Type(type) 
+        { 
+            Y_UNUSED(param); // for disabled lwtrace 
+            switch (Type) { 
+#define FOREACH_PARAMTYPE_MACRO(n, t, v)        \ 
+    case PT_##v:                                \ 
+        Param.CopyConstruct<t>(param.Get<t>()); \ 
+        return; 
+                FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO) 
+#undef FOREACH_PARAMTYPE_MACRO 
+                case PT_UNKNOWN: 
+                    return; 
+                default: 
+                    Y_FAIL("unknown param type"); 
+            } 
+        } 
+ 
+        ~TTypedParam() { 
+            Reset(); 
+        } 
+ 
+        void Reset() { 
+            switch (Type) { 
+#define FOREACH_PARAMTYPE_MACRO(n, t, v) \ 
+    case PT_##v:                         \ 
+        Param.Destruct<t>();             \ 
+        return; 
+                FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO) 
+#undef FOREACH_PARAMTYPE_MACRO 
+                case PT_UNKNOWN: 
+                    return; 
+                default: 
+                    Y_FAIL("unknown param type"); 
+            } 
+            Type = PT_UNKNOWN; 
+        } 
+ 
+        bool operator==(const TTypedParam& rhs) const { 
+            if (Y_LIKELY(Type == rhs.Type)) { 
+                switch (Type) { 
+#define FOREACH_PARAMTYPE_MACRO(n, t, v) \ 
+    case PT_##v:                         \ 
+        return Param.Get<t>() == rhs.Param.Get<t>(); 
+                    FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO) 
+#undef FOREACH_PARAMTYPE_MACRO 
+                    case PT_UNKNOWN: 
+                        return false; // All unknowns are equal 
+                    default: 
+                        Y_FAIL("unknown param type"); 
+                } 
+            } else { 
+                return false; 
+            } 
+        } 
+        bool operator!=(const TTypedParam& rhs) const { 
+            return !operator==(rhs); 
+        } 
+ 
+        bool operator<(const TTypedParam& rhs) const { 
+            if (Y_LIKELY(Type == rhs.Type)) { 
+                switch (Type) { 
+#define FOREACH_PARAMTYPE_MACRO(n, t, v) \ 
+    case PT_##v:                         \ 
+        return Param.Get<t>() < rhs.Param.Get<t>(); 
+                    FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO) 
+#undef FOREACH_PARAMTYPE_MACRO 
+                    case PT_UNKNOWN: 
+                        return false; // All unknowns are equal 
+                    default: 
+                        Y_FAIL("unknown param type"); 
+                } 
+            } else { 
+                return Type < rhs.Type; 
+            } 
+        } 
+ 
+        bool operator<=(const TTypedParam& rhs) const { 
+            if (Y_LIKELY(Type == rhs.Type)) { 
+                switch (Type) { 
+#define FOREACH_PARAMTYPE_MACRO(n, t, v) \ 
+    case PT_##v:                         \ 
+        return Param.Get<t>() <= rhs.Param.Get<t>(); 
+                    FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO) 
+#undef FOREACH_PARAMTYPE_MACRO 
+                    case PT_UNKNOWN: 
+                        return true; // All unknowns are equal 
+                    default: 
+                        Y_FAIL("unknown param type"); 
+                } 
+            } else { 
+                return Type < rhs.Type; 
+            } 
+        } 
+ 
+        bool operator>(const TTypedParam& rhs) const { 
+            return !operator<=(rhs); 
+        } 
+        bool operator>=(const TTypedParam& rhs) const { 
+            return !operator<(rhs); 
+        } 
+ 
+        EParamTypePb GetType() const { 
+            return Type; 
+        } 
+        const TParam& GetParam() const { 
+            return Param; 
+        } 
+    }; 
+ 
+    class TLiteral { 
+    private: 
+        TTypedParam Values[EParamTypePb_ARRAYSIZE]; 
+
+    public: 
+        explicit TLiteral(const TString& text) { 
+            Y_UNUSED(text); /* That's for windows, where we have lwtrace disabled. */ 
+ 
+#define FOREACH_PARAMTYPE_MACRO(n, t, v)                               \ 
+    try {                                                              \ 
+        Values[PT_##v] = TTypedParam(TParamConv<t>::FromString(text)); \ 
+    } catch (...) {                                                    \ 
+        Values[PT_##v] = TTypedParam();                                \ 
+    }                                                                  \ 
+    /**/ 
+            FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO) 
+#undef FOREACH_PARAMTYPE_MACRO 
+        } 
+ 
+        TLiteral() { 
+        } 
+ 
+        TLiteral(const TLiteral& o) { 
+            for (size_t i = 0; i < EParamTypePb_ARRAYSIZE; i++) { 
+                Values[i] = o.Values[i]; 
+            } 
+        } 
+ 
+        TLiteral& operator=(const TLiteral& o) { 
+            for (size_t i = 0; i < EParamTypePb_ARRAYSIZE; i++) { 
+                Values[i] = o.Values[i]; 
+            } 
+            return *this; 
+        } 
+ 
+        const TTypedParam& GetValue(EParamTypePb type) const { 
+            return Values[type]; 
+        } 
+ 
+        bool operator==(const TTypedParam& rhs) const { 
+            return Values[rhs.GetType()] == rhs; 
+        } 
+        bool operator!=(const TTypedParam& rhs) const { 
+            return !operator==(rhs); 
+        } 
+ 
+        bool operator<(const TTypedParam& rhs) const { 
+            return Values[rhs.GetType()] < rhs; 
+        } 
+ 
+        bool operator<=(const TTypedParam& rhs) const { 
+            return Values[rhs.GetType()] <= rhs; 
+        } 
+ 
+        bool operator>(const TTypedParam& rhs) const { 
+            return !operator<=(rhs); 
+        } 
+        bool operator>=(const TTypedParam& rhs) const { 
+            return !operator<(rhs); 
+        } 
+    }; 
+ 
+    inline bool operator==(const TTypedParam& lhs, const TLiteral& rhs) { 
+        return lhs == rhs.GetValue(lhs.GetType()); 
+    } 
+    inline bool operator!=(const TTypedParam& lhs, const TLiteral& rhs) { 
+        return !operator==(lhs, rhs); 
+    } 
+ 
+    inline bool operator<(const TTypedParam& lhs, const TLiteral& rhs) { 
+        return lhs < rhs.GetValue(lhs.GetType()); 
+    } 
+ 
+    inline bool operator<=(const TTypedParam& lhs, const TLiteral& rhs) { 
+        return lhs <= rhs.GetValue(lhs.GetType()); 
+    } 
+ 
+    inline bool operator>(const TTypedParam& lhs, const TLiteral& rhs) { 
+        return !operator<=(lhs, rhs); 
+    } 
+    inline bool operator>=(const TTypedParam& lhs, const TLiteral& rhs) { 
+        return !operator<(lhs, rhs); 
+    } 
+ 
+    // Struct that holds and handles all parameter values of different supported types 
+    struct TParams { 
+        TParam Param[LWTRACE_MAX_PARAMS]; 
+    }; 
+ 
     using TSerializedParams = google::protobuf::RepeatedPtrField<NLWTrace::TTraceParam>;
 
-    // Represents a common class for all function "signatures" (parameter types and names).
-    // Provides non-virtual interface to handle the signature and (emulated) virtual interface to handle TParams corresponding to the signature
-    struct TSignature {
-        const char** ParamTypes;
-        const char* ParamNames[LWTRACE_MAX_PARAMS + 1];
-        size_t ParamCount;
-
-        // Virtual table
-        void (*SerializeParamsFunc)(const TParams& params, TString* values);
-        void (*CloneParamsFunc)(TParams& newParams, const TParams& oldParams);
-        void (*DestroyParamsFunc)(TParams& params);
+    // Represents a common class for all function "signatures" (parameter types and names). 
+    // Provides non-virtual interface to handle the signature and (emulated) virtual interface to handle TParams corresponding to the signature 
+    struct TSignature { 
+        const char** ParamTypes; 
+        const char* ParamNames[LWTRACE_MAX_PARAMS + 1]; 
+        size_t ParamCount; 
+ 
+        // Virtual table 
+        void (*SerializeParamsFunc)(const TParams& params, TString* values); 
+        void (*CloneParamsFunc)(TParams& newParams, const TParams& oldParams); 
+        void (*DestroyParamsFunc)(TParams& params); 
         void (*SerializeToPbFunc)(const TParams& params, TSerializedParams& arr);
         bool (*DeserializeFromPbFunc)(TParams& params, const TSerializedParams& arr);
-
-        // Virtual calls emulation
-        void SerializeParams(const TParams& params, TString* values) const {
-            (*SerializeParamsFunc)(params, values);
-        }
-
-        void CloneParams(TParams& newParams, const TParams& oldParams) const {
-            (*CloneParamsFunc)(newParams, oldParams);
-        }
-
-        void DestroyParams(TParams& params) const {
-            (*DestroyParamsFunc)(params);
-        }
-
+ 
+        // Virtual calls emulation 
+        void SerializeParams(const TParams& params, TString* values) const { 
+            (*SerializeParamsFunc)(params, values); 
+        } 
+ 
+        void CloneParams(TParams& newParams, const TParams& oldParams) const { 
+            (*CloneParamsFunc)(newParams, oldParams); 
+        } 
+ 
+        void DestroyParams(TParams& params) const { 
+            (*DestroyParamsFunc)(params); 
+        } 
+ 
         void SerializeToPb(const TParams& params, TSerializedParams& arr) const
         {
             (*SerializeToPbFunc)(params, arr);
@@ -429,42 +429,42 @@ namespace NLWTrace {
             return (*DeserializeFromPbFunc)(params, arr);
         }
 
-        void ToProtobuf(TEventPb& pb) const;
-
-        size_t FindParamIndex(const TString& param) const {
-            for (size_t i = 0; i < ParamCount; i++) {
-                if (ParamNames[i] == param) {
-                    return i;
-                }
-            }
-            return size_t(-1);
-        }
-    };
-
-#ifndef LWTRACE_DISABLE
-
-    // Implementation. Used for compilation error if not all expected parameters passed to a function call
-    struct ERROR_not_enough_parameters : TNil {};
-
-    // Struct that holds static string with a name of parameter type
-    template <class T>
-    struct TParamType {
-        enum { Supported = 0 };
-        static const char* NameString;
-    };
-
-#define FOREACH_PARAMTYPE_MACRO(n, t, v) \
-    template <>                          \
-    struct TParamType<t> {               \
-        enum { Supported = 1 };          \
-        static const char* NameString;   \
-    };                                   \
-    /**/
-    FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO)
-    FOR_NIL_PARAMTYPE(FOREACH_PARAMTYPE_MACRO)
-#undef FOREACH_PARAMTYPE_MACRO
-
-    template <class T>
+        void ToProtobuf(TEventPb& pb) const; 
+ 
+        size_t FindParamIndex(const TString& param) const { 
+            for (size_t i = 0; i < ParamCount; i++) { 
+                if (ParamNames[i] == param) { 
+                    return i; 
+                } 
+            } 
+            return size_t(-1); 
+        } 
+    }; 
+ 
+#ifndef LWTRACE_DISABLE 
+ 
+    // Implementation. Used for compilation error if not all expected parameters passed to a function call 
+    struct ERROR_not_enough_parameters : TNil {}; 
+ 
+    // Struct that holds static string with a name of parameter type 
+    template <class T> 
+    struct TParamType { 
+        enum { Supported = 0 }; 
+        static const char* NameString; 
+    }; 
+ 
+#define FOREACH_PARAMTYPE_MACRO(n, t, v) \ 
+    template <>                          \ 
+    struct TParamType<t> {               \ 
+        enum { Supported = 1 };          \ 
+        static const char* NameString;   \ 
+    };                                   \ 
+    /**/ 
+    FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO) 
+    FOR_NIL_PARAMTYPE(FOREACH_PARAMTYPE_MACRO) 
+#undef FOREACH_PARAMTYPE_MACRO 
+ 
+    template <class T> 
     struct TParamTraits;
 
     // Enum types traits impl.
@@ -473,7 +473,7 @@ namespace NLWTrace {
         using TStoreType = typename TParamTraits<std::underlying_type_t<TEnum>>::TStoreType;
         using TFuncParam = TEnum;
 
-        inline static void ToString(typename TTypeTraits<TStoreType>::TFuncParam stored, TString* out) {
+        inline static void ToString(typename TTypeTraits<TStoreType>::TFuncParam stored, TString* out) { 
             if constexpr (google::protobuf::is_proto_enum<TEnum>::value) {
                 const google::protobuf::EnumValueDescriptor* valueDescriptor = google::protobuf::GetEnumDescriptor<TEnum>()->FindValueByNumber(stored);
                 if (valueDescriptor) {
@@ -484,13 +484,13 @@ namespace NLWTrace {
             } else {
                 *out = TParamConv<TStoreType>::ToString(stored);
             }
-        }
+        } 
 
         inline static TStoreType ToStoreType(TFuncParam v) {
             return static_cast<TStoreType>(v);
         }
-    };
-
+    }; 
+ 
     template <class TCustomType>
     struct TCustomTraitsImpl {
         using TStoreType = typename TParamTraits<typename TCustomType::TStoreType>::TStoreType; //see STORE_TYPE_AS
@@ -522,48 +522,48 @@ namespace NLWTrace {
 
     // Standard stored types traits.
 
-#define STORE_TYPE_AS(input_t, store_as_t)                                                      \
-    template <>                                                                                 \
-    struct TParamTraits<input_t> {                                                              \
+#define STORE_TYPE_AS(input_t, store_as_t)                                                      \ 
+    template <>                                                                                 \ 
+    struct TParamTraits<input_t> {                                                              \ 
         using TStoreType = store_as_t;                                                          \
         using TFuncParam = typename TTypeTraits<input_t>::TFuncParam;                           \
                                                                                                 \
         inline static void ToString(typename TTypeTraits<TStoreType>::TFuncParam stored, TString* out) { \
-            *out = TParamConv<TStoreType>::ToString(stored);                                    \
-        }                                                                                       \
+            *out = TParamConv<TStoreType>::ToString(stored);                                    \ 
+        }                                                                                       \ 
                                                                                                 \
         inline static TStoreType ToStoreType(TFuncParam v) {                                    \
             return v;                                                                           \
         }                                                                                       \
-    };                                                                                          \
-    /**/
-    STORE_TYPE_AS(ui8, ui64);
-    STORE_TYPE_AS(i8, i64);
-    STORE_TYPE_AS(ui16, ui64);
-    STORE_TYPE_AS(i16, i64);
-    STORE_TYPE_AS(ui32, ui64);
-    STORE_TYPE_AS(i32, i64);
-    STORE_TYPE_AS(bool, ui64);
-    STORE_TYPE_AS(float, double);
+    };                                                                                          \ 
+    /**/ 
+    STORE_TYPE_AS(ui8, ui64); 
+    STORE_TYPE_AS(i8, i64); 
+    STORE_TYPE_AS(ui16, ui64); 
+    STORE_TYPE_AS(i16, i64); 
+    STORE_TYPE_AS(ui32, ui64); 
+    STORE_TYPE_AS(i32, i64); 
+    STORE_TYPE_AS(bool, ui64); 
+    STORE_TYPE_AS(float, double); 
 #define FOREACH_PARAMTYPE_MACRO(n, t, v) STORE_TYPE_AS(t, t)
-    FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO)
+    FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO) 
 #undef STORE_TYPE_AS
-#undef FOREACH_PARAMTYPE_MACRO
-
+#undef FOREACH_PARAMTYPE_MACRO 
+ 
     // Nil type staits.
-    template <>
-    struct TParamTraits<TNil> {
+    template <> 
+    struct TParamTraits<TNil> { 
         using TStoreType = TNil;
         using TFuncParam = TTypeTraits<TNil>::TFuncParam;
 
         inline static void ToString(typename TTypeTraits<TNil>::TFuncParam, TString*) {
-        }
+        } 
 
         inline static TNil ToStoreType(TFuncParam v) {
             return v;
         }
-    };
-
+    }; 
+ 
     inline EParamTypePb ParamTypeToProtobuf(const char* paramType) {
 #define FOREACH_PARAMTYPE_MACRO(n, t, v) \
     if (strcmp(paramType, n) == 0) {     \
@@ -676,35 +676,35 @@ namespace NLWTrace {
         Y_UNUSED(param);
     }
 
-    // Class representing a specific signature
-    template <LWTRACE_TEMPLATE_PARAMS>
-    struct TUserSignature {
-#define FOREACH_PARAMNUM_MACRO(i) static_assert(TParamType<typename TParamTraits<TP##i>::TStoreType>::Supported == 1, "expect TParamType< typename TParamTraits<TP ## i>::TStoreType >::Supported == 1");
-        FOREACH_PARAMNUM(FOREACH_PARAMNUM_MACRO) // ERROR: unsupported type used as probe/event parameter type
-#undef FOREACH_PARAMNUM_MACRO
-        static const char* ParamTypes[];
-        static const int ParamCount = LWTRACE_COUNT_PARAMS;
-
-        // Implementation of virtual function (TSignature derived classes vtable emulation)
-        inline static void SerializeParams(const TParams& params, TString* values) {
-#define FOREACH_PARAMNUM_MACRO(i) TParamTraits<TP##i>::ToString(params.Param[i].Get<typename TParamTraits<TP##i>::TStoreType>(), values + i);
-            FOREACH_PARAMNUM(FOREACH_PARAMNUM_MACRO);
-#undef FOREACH_PARAMNUM_MACRO
-        }
-
-        // Implementation of virtual function (TSignature derived classes vtable emulation)
-        inline static void CloneParams(TParams& newParams, const TParams& oldParams) {
-#define FOREACH_PARAMNUM_MACRO(i) newParams.Param[i].CopyConstruct<typename TParamTraits<TP##i>::TStoreType>(oldParams.Param[i].Get<typename TParamTraits<TP##i>::TStoreType>());
-            FOREACH_PARAMNUM(FOREACH_PARAMNUM_MACRO);
-#undef FOREACH_PARAMNUM_MACRO
-        }
-
-        // Implementation of virtual function (TSignature derived classes vtable emulation)
-        inline static void DestroyParams(TParams& params) {
-#define FOREACH_PARAMNUM_MACRO(i) params.Param[i].Destruct<typename TParamTraits<TP##i>::TStoreType>();
-            FOREACH_PARAMNUM(FOREACH_PARAMNUM_MACRO);
-#undef FOREACH_PARAMNUM_MACRO
-        }
+    // Class representing a specific signature 
+    template <LWTRACE_TEMPLATE_PARAMS> 
+    struct TUserSignature { 
+#define FOREACH_PARAMNUM_MACRO(i) static_assert(TParamType<typename TParamTraits<TP##i>::TStoreType>::Supported == 1, "expect TParamType< typename TParamTraits<TP ## i>::TStoreType >::Supported == 1"); 
+        FOREACH_PARAMNUM(FOREACH_PARAMNUM_MACRO) // ERROR: unsupported type used as probe/event parameter type 
+#undef FOREACH_PARAMNUM_MACRO 
+        static const char* ParamTypes[]; 
+        static const int ParamCount = LWTRACE_COUNT_PARAMS; 
+ 
+        // Implementation of virtual function (TSignature derived classes vtable emulation) 
+        inline static void SerializeParams(const TParams& params, TString* values) { 
+#define FOREACH_PARAMNUM_MACRO(i) TParamTraits<TP##i>::ToString(params.Param[i].Get<typename TParamTraits<TP##i>::TStoreType>(), values + i); 
+            FOREACH_PARAMNUM(FOREACH_PARAMNUM_MACRO); 
+#undef FOREACH_PARAMNUM_MACRO 
+        } 
+ 
+        // Implementation of virtual function (TSignature derived classes vtable emulation) 
+        inline static void CloneParams(TParams& newParams, const TParams& oldParams) { 
+#define FOREACH_PARAMNUM_MACRO(i) newParams.Param[i].CopyConstruct<typename TParamTraits<TP##i>::TStoreType>(oldParams.Param[i].Get<typename TParamTraits<TP##i>::TStoreType>()); 
+            FOREACH_PARAMNUM(FOREACH_PARAMNUM_MACRO); 
+#undef FOREACH_PARAMNUM_MACRO 
+        } 
+ 
+        // Implementation of virtual function (TSignature derived classes vtable emulation) 
+        inline static void DestroyParams(TParams& params) { 
+#define FOREACH_PARAMNUM_MACRO(i) params.Param[i].Destruct<typename TParamTraits<TP##i>::TStoreType>(); 
+            FOREACH_PARAMNUM(FOREACH_PARAMNUM_MACRO); 
+#undef FOREACH_PARAMNUM_MACRO 
+        } 
 
         // Implementation of virtual function (TSignature derived classes vtable emulation)
         inline static void SerializeToPb(const TParams& params, TSerializedParams& arr)
@@ -741,32 +741,32 @@ namespace NLWTrace {
 #undef FOREACH_PARAMNUM_MACRO
             return true;
         }
-    };
-
-    // Array of static strings pointers for names of parameter types in a specific signature
-    template <LWTRACE_TEMPLATE_PARAMS_NODEF>
-    const char* TUserSignature<LWTRACE_TEMPLATE_ARGS>::ParamTypes[] = {
-#define FOREACH_PARAMNUM_MACRO(i) TParamType<typename TParamTraits<TP##i>::TStoreType>::NameString,
-        FOREACH_PARAMNUM(FOREACH_PARAMNUM_MACRO) nullptr
-#undef FOREACH_PARAMNUM_MACRO
-    };
-
-    inline void TSignature::ToProtobuf(TEventPb& pb) const {
-        for (size_t i = 0; i < ParamCount; i++) {
-            pb.AddParamTypes(ParamTypeToProtobuf(ParamTypes[i]));
-            pb.AddParamNames(ParamNames[i]);
-        }
-    }
-
-#else
-
-    inline void TSignature::ToProtobuf(TEventPb&) const {
-    }
-
-    inline EParamTypePb ParamTypeToProtobuf(const char*) {
-        return PT_UNKNOWN;
-    }
-
-#endif
-
-}
+    }; 
+ 
+    // Array of static strings pointers for names of parameter types in a specific signature 
+    template <LWTRACE_TEMPLATE_PARAMS_NODEF> 
+    const char* TUserSignature<LWTRACE_TEMPLATE_ARGS>::ParamTypes[] = { 
+#define FOREACH_PARAMNUM_MACRO(i) TParamType<typename TParamTraits<TP##i>::TStoreType>::NameString, 
+        FOREACH_PARAMNUM(FOREACH_PARAMNUM_MACRO) nullptr 
+#undef FOREACH_PARAMNUM_MACRO 
+    }; 
+ 
+    inline void TSignature::ToProtobuf(TEventPb& pb) const { 
+        for (size_t i = 0; i < ParamCount; i++) { 
+            pb.AddParamTypes(ParamTypeToProtobuf(ParamTypes[i])); 
+            pb.AddParamNames(ParamNames[i]); 
+        } 
+    } 
+ 
+#else 
+ 
+    inline void TSignature::ToProtobuf(TEventPb&) const { 
+    } 
+ 
+    inline EParamTypePb ParamTypeToProtobuf(const char*) { 
+        return PT_UNKNOWN; 
+    } 
+ 
+#endif 
+ 
+} 
diff --git a/library/cpp/lwtrace/sleep_action.cpp b/library/cpp/lwtrace/sleep_action.cpp
index 74977528db..8e5925be38 100644
--- a/library/cpp/lwtrace/sleep_action.cpp
+++ b/library/cpp/lwtrace/sleep_action.cpp
@@ -9,7 +9,7 @@
 using namespace NLWTrace;
 using namespace NLWTrace::NPrivate;
 
-bool TSleepActionExecutor::DoExecute(TOrbit&, const TParams&) {
+bool TSleepActionExecutor::DoExecute(TOrbit&, const TParams&) { 
     NanoSleep(NanoSeconds);
     return true;
 }
diff --git a/library/cpp/lwtrace/sleep_action.h b/library/cpp/lwtrace/sleep_action.h
index 26f89bd88c..9cece64d40 100644
--- a/library/cpp/lwtrace/sleep_action.h
+++ b/library/cpp/lwtrace/sleep_action.h
@@ -2,20 +2,20 @@
 
 #include "probe.h"
 
-namespace NLWTrace {
-    namespace NPrivate {
-        class TSleepActionExecutor: public IExecutor {
-        private:
-            ui64 NanoSeconds;
+namespace NLWTrace { 
+    namespace NPrivate { 
+        class TSleepActionExecutor: public IExecutor { 
+        private: 
+            ui64 NanoSeconds; 
 
-        public:
-            TSleepActionExecutor(const TProbe*, ui64 nanoSeconds)
-                : IExecutor()
-                , NanoSeconds(nanoSeconds)
-            {
-            }
-            bool DoExecute(TOrbit& orbit, const TParams& params) override;
-        };
+        public: 
+            TSleepActionExecutor(const TProbe*, ui64 nanoSeconds) 
+                : IExecutor() 
+                , NanoSeconds(nanoSeconds) 
+            { 
+            } 
+            bool DoExecute(TOrbit& orbit, const TParams& params) override; 
+        }; 
 
-    }
-}
+    } 
+} 
diff --git a/library/cpp/lwtrace/start.cpp b/library/cpp/lwtrace/start.cpp
index 121d5472b6..7d17d6c572 100644
--- a/library/cpp/lwtrace/start.cpp
+++ b/library/cpp/lwtrace/start.cpp
@@ -14,56 +14,56 @@
 using namespace NLWTrace;
 
 namespace {
-    struct TTraceManagerHolder {
-        TManager TraceManager;
-        TTraceManagerHolder()
-            : TraceManager(*Singleton<TProbeRegistry>(), true)
-        {
-        }
-    };
-
-    void TraceFromEnv(TString path) {
-        TString script = TUnbufferedFileInput(path).ReadAll();
-        TQuery query;
-        bool ok = google::protobuf::TextFormat::ParseFromString(script, &query);
-        Y_VERIFY(ok, "failed to parse protobuf");
-        Singleton<TTraceManagerHolder>()->TraceManager.New("env", query);
-    }
-
-} // anonymous namespace
-
-void NLWTrace::StartLwtraceFromEnv() {
-    static bool started = false;
-    if (started) {
-        return;
-    } else {
-        started = true;
-    }
-
+    struct TTraceManagerHolder { 
+        TManager TraceManager; 
+        TTraceManagerHolder() 
+            : TraceManager(*Singleton<TProbeRegistry>(), true) 
+        { 
+        } 
+    }; 
+ 
+    void TraceFromEnv(TString path) { 
+        TString script = TUnbufferedFileInput(path).ReadAll(); 
+        TQuery query; 
+        bool ok = google::protobuf::TextFormat::ParseFromString(script, &query); 
+        Y_VERIFY(ok, "failed to parse protobuf"); 
+        Singleton<TTraceManagerHolder>()->TraceManager.New("env", query); 
+    } 
+ 
+} // anonymous namespace 
+ 
+void NLWTrace::StartLwtraceFromEnv() { 
+    static bool started = false; 
+    if (started) { 
+        return; 
+    } else { 
+        started = true; 
+    } 
+ 
     TString path = GetEnv("LWTRACE");
     if (!path) {
         return;
     }
 
     try {
-        TraceFromEnv(path);
+        TraceFromEnv(path); 
     } catch (...) {
         Cerr << "failed to load lwtrace script: " << CurrentExceptionMessage() << "\n";
         abort();
     }
 }
-
-void NLWTrace::StartLwtraceFromEnv(std::function<void(TManager&)> prepare) {
+ 
+void NLWTrace::StartLwtraceFromEnv(std::function<void(TManager&)> prepare) { 
     TString path = GetEnv("LWTRACE");
     if (Y_LIKELY(!path)) {
-        return;
-    }
-
-    try {
-        prepare(Singleton<TTraceManagerHolder>()->TraceManager);
-        TraceFromEnv(path);
-    } catch (...) {
-        Cerr << "failed to load lwtrace script: " << CurrentExceptionMessage() << "\n";
-        abort();
-    }
-}
+        return; 
+    } 
+ 
+    try { 
+        prepare(Singleton<TTraceManagerHolder>()->TraceManager); 
+        TraceFromEnv(path); 
+    } catch (...) { 
+        Cerr << "failed to load lwtrace script: " << CurrentExceptionMessage() << "\n"; 
+        abort(); 
+    } 
+} 
diff --git a/library/cpp/lwtrace/start.h b/library/cpp/lwtrace/start.h
index 2755212bff..9acb8df15e 100644
--- a/library/cpp/lwtrace/start.h
+++ b/library/cpp/lwtrace/start.h
@@ -1,11 +1,11 @@
 #pragma once
 
-#include <functional>
-
+#include <functional> 
+ 
 namespace NLWTrace {
-    class TManager;
+    class TManager; 
 
-    void StartLwtraceFromEnv();
-    void StartLwtraceFromEnv(std::function<void(TManager&)> prepare);
+    void StartLwtraceFromEnv(); 
+    void StartLwtraceFromEnv(std::function<void(TManager&)> prepare); 
 
 }
diff --git a/library/cpp/lwtrace/stderr_writer.cpp b/library/cpp/lwtrace/stderr_writer.cpp
index 6e5654c338..43bf9c1d02 100644
--- a/library/cpp/lwtrace/stderr_writer.cpp
+++ b/library/cpp/lwtrace/stderr_writer.cpp
@@ -1,19 +1,19 @@
 #include "stderr_writer.h"
 
-#include <util/stream/str.h>
+#include <util/stream/str.h> 
 
 using namespace NLWTrace;
 
-bool TStderrActionExecutor::DoExecute(TOrbit&, const TParams& params) {
+bool TStderrActionExecutor::DoExecute(TOrbit&, const TParams& params) { 
     TString ParamValues[LWTRACE_MAX_PARAMS];
     Probe->Event.Signature.SerializeParams(params, ParamValues);
 
-    TStringStream ss;
-    ss << Probe->Event.GetProvider() << "." << Probe->Event.Name;
+    TStringStream ss; 
+    ss << Probe->Event.GetProvider() << "." << Probe->Event.Name; 
     for (ui32 i = 0; i < Probe->Event.Signature.ParamCount; ++i) {
-        ss << " " << Probe->Event.Signature.ParamNames[i] << "=" << ParamValues[i];
+        ss << " " << Probe->Event.Signature.ParamNames[i] << "=" << ParamValues[i]; 
     }
-    ss << "\n";
-    Cerr << ss.Str();
+    ss << "\n"; 
+    Cerr << ss.Str(); 
     return true;
 }
diff --git a/library/cpp/lwtrace/stderr_writer.h b/library/cpp/lwtrace/stderr_writer.h
index b17fc3136e..17d4789538 100644
--- a/library/cpp/lwtrace/stderr_writer.h
+++ b/library/cpp/lwtrace/stderr_writer.h
@@ -3,17 +3,17 @@
 #include "probe.h"
 
 namespace NLWTrace {
-    class TStderrActionExecutor: public IExecutor {
-    private:
-        TProbe* const Probe;
+    class TStderrActionExecutor: public IExecutor { 
+    private: 
+        TProbe* const Probe; 
 
-    public:
-        explicit TStderrActionExecutor(TProbe* probe)
-            : Probe(probe)
-        {
-        }
-
-        bool DoExecute(TOrbit& orbit, const TParams& params) override;
-    };
+    public: 
+        explicit TStderrActionExecutor(TProbe* probe) 
+            : Probe(probe) 
+        { 
+        } 
 
+        bool DoExecute(TOrbit& orbit, const TParams& params) override; 
+    }; 
+ 
 }
diff --git a/library/cpp/lwtrace/symbol.cpp b/library/cpp/lwtrace/symbol.cpp
index 456652bcd0..e073772b5e 100644
--- a/library/cpp/lwtrace/symbol.cpp
+++ b/library/cpp/lwtrace/symbol.cpp
@@ -1,15 +1,15 @@
-#include "symbol.h"
+#include "symbol.h" 
 
 #include <util/stream/output.h>
-#include <util/string/cast.h>
-
-template <>
-NLWTrace::TSymbol FromStringImpl(const char*, size_t) {
+#include <util/string/cast.h> 
+ 
+template <> 
+NLWTrace::TSymbol FromStringImpl(const char*, size_t) { 
     static TString err("ERROR_dynamic_symbol");
-    return NLWTrace::TSymbol(&err);
-}
-
-template <>
-void Out<NLWTrace::TSymbol>(IOutputStream& o, TTypeTraits<NLWTrace::TSymbol>::TFuncParam t) {
+    return NLWTrace::TSymbol(&err); 
+} 
+ 
+template <> 
+void Out<NLWTrace::TSymbol>(IOutputStream& o, TTypeTraits<NLWTrace::TSymbol>::TFuncParam t) { 
     Out<TString>(o, *t.Str);
-}
+} 
diff --git a/library/cpp/lwtrace/symbol.h b/library/cpp/lwtrace/symbol.h
index ef9e6cdf94..2e7d3da745 100644
--- a/library/cpp/lwtrace/symbol.h
+++ b/library/cpp/lwtrace/symbol.h
@@ -1,68 +1,68 @@
-#pragma once
-
+#pragma once 
+ 
 #include <util/generic/string.h>
-#include <util/string/builder.h>
-#include <util/system/src_location.h>
-
-#define LWTRACE_DEFINE_SYMBOL(variable, text)         \
-    static TString variable##_holder(text);           \
-    ::NLWTrace::TSymbol variable(&variable##_holder); \
-    /**/
-
-#define LWTRACE_INLINE_SYMBOL(text)           \
-    [&] {                                     \
-        static TString _holder(text);         \
-        return ::NLWTrace::TSymbol(&_holder); \
-    }() /**/
-
-#define LWTRACE_LOCATION_SYMBOL                                                          \
-    [](const char* func) {                                                               \
+#include <util/string/builder.h> 
+#include <util/system/src_location.h> 
+ 
+#define LWTRACE_DEFINE_SYMBOL(variable, text)         \ 
+    static TString variable##_holder(text);           \ 
+    ::NLWTrace::TSymbol variable(&variable##_holder); \ 
+    /**/ 
+ 
+#define LWTRACE_INLINE_SYMBOL(text)           \ 
+    [&] {                                     \ 
+        static TString _holder(text);         \ 
+        return ::NLWTrace::TSymbol(&_holder); \ 
+    }() /**/ 
+ 
+#define LWTRACE_LOCATION_SYMBOL                                                          \ 
+    [](const char* func) {                                                               \ 
         static TString _holder(TStringBuilder() << func << " (" << __LOCATION__ << ")"); \
-        return ::NLWTrace::TSymbol(&_holder);                                            \
-    }(Y_FUNC_SIGNATURE) /**/
-
-namespace NLWTrace {
-    struct TSymbol {
-        TString* Str;
-
-        TSymbol()
-            : Str(nullptr)
-        {
-        }
-
-        explicit TSymbol(TString* str)
-            : Str(str)
-        {
-        }
-
-        TSymbol& operator=(const TSymbol& o) {
-            Str = o.Str;
-            return *this;
-        }
-
-        TSymbol(const TSymbol& o)
-            : Str(o.Str)
-        {
-        }
-
-        bool operator<(const TSymbol& rhs) const {
-            return Str < rhs.Str;
-        }
-        bool operator>(const TSymbol& rhs) const {
-            return Str > rhs.Str;
-        }
-        bool operator<=(const TSymbol& rhs) const {
-            return Str <= rhs.Str;
-        }
-        bool operator>=(const TSymbol& rhs) const {
-            return Str >= rhs.Str;
-        }
-        bool operator==(const TSymbol& rhs) const {
-            return Str == rhs.Str;
-        }
-        bool operator!=(const TSymbol& rhs) const {
-            return Str != rhs.Str;
-        }
-    };
-
-}
+        return ::NLWTrace::TSymbol(&_holder);                                            \ 
+    }(Y_FUNC_SIGNATURE) /**/ 
+ 
+namespace NLWTrace { 
+    struct TSymbol { 
+        TString* Str; 
+ 
+        TSymbol() 
+            : Str(nullptr) 
+        { 
+        } 
+ 
+        explicit TSymbol(TString* str) 
+            : Str(str) 
+        { 
+        } 
+ 
+        TSymbol& operator=(const TSymbol& o) { 
+            Str = o.Str; 
+            return *this; 
+        } 
+ 
+        TSymbol(const TSymbol& o) 
+            : Str(o.Str) 
+        { 
+        } 
+ 
+        bool operator<(const TSymbol& rhs) const { 
+            return Str < rhs.Str; 
+        } 
+        bool operator>(const TSymbol& rhs) const { 
+            return Str > rhs.Str; 
+        } 
+        bool operator<=(const TSymbol& rhs) const { 
+            return Str <= rhs.Str; 
+        } 
+        bool operator>=(const TSymbol& rhs) const { 
+            return Str >= rhs.Str; 
+        } 
+        bool operator==(const TSymbol& rhs) const { 
+            return Str == rhs.Str; 
+        } 
+        bool operator!=(const TSymbol& rhs) const { 
+            return Str != rhs.Str; 
+        } 
+    }; 
+ 
+} 
diff --git a/library/cpp/lwtrace/tests/trace_tests.cpp b/library/cpp/lwtrace/tests/trace_tests.cpp
index 6762e344a7..52f24f3685 100644
--- a/library/cpp/lwtrace/tests/trace_tests.cpp
+++ b/library/cpp/lwtrace/tests/trace_tests.cpp
@@ -6,710 +6,710 @@
 
 #include <util/system/pipe.h>
 #include <util/generic/ymath.h>
-#include <util/string/printf.h>
-#include <util/string/vector.h>
-
-#define LWTRACE_TESTS_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES)                                           \
-    PROBE(Simplest, GROUPS("Group"), TYPES(), NAMES())                                                       \
-    PROBE(IntParam, GROUPS("Group"), TYPES(ui32), NAMES("value"))                                            \
-    PROBE(StringParam, GROUPS("Group"), TYPES(TString), NAMES("value"))                                      \
-    PROBE(SymbolParam, GROUPS("Group"), TYPES(NLWTrace::TSymbol), NAMES("symbol"))                           \
-    PROBE(CheckParam, GROUPS("Group"), TYPES(NLWTrace::TCheck), NAMES("value"))                              \
-    EVENT(TwoParamsEvent, GROUPS("Group"), TYPES(int, TString), NAMES("param1", "param2"))                   \
+#include <util/string/printf.h> 
+#include <util/string/vector.h> 
+ 
+#define LWTRACE_TESTS_PROVIDER(PROBE, EVENT, GROUPS, TYPES, NAMES)                                           \ 
+    PROBE(Simplest, GROUPS("Group"), TYPES(), NAMES())                                                       \ 
+    PROBE(IntParam, GROUPS("Group"), TYPES(ui32), NAMES("value"))                                            \ 
+    PROBE(StringParam, GROUPS("Group"), TYPES(TString), NAMES("value"))                                      \ 
+    PROBE(SymbolParam, GROUPS("Group"), TYPES(NLWTrace::TSymbol), NAMES("symbol"))                           \ 
+    PROBE(CheckParam, GROUPS("Group"), TYPES(NLWTrace::TCheck), NAMES("value"))                              \ 
+    EVENT(TwoParamsEvent, GROUPS("Group"), TYPES(int, TString), NAMES("param1", "param2"))                   \ 
     EVENT(TwoParamsCheckEvent, GROUPS("Group"), TYPES(NLWTrace::TCheck, TString), NAMES("param1", "param2")) \
-    /**/
-
-LWTRACE_DECLARE_PROVIDER(LWTRACE_TESTS_PROVIDER)
-LWTRACE_DEFINE_PROVIDER(LWTRACE_TESTS_PROVIDER)
-LWTRACE_USING(LWTRACE_TESTS_PROVIDER)
-
-namespace NLWTrace {
-    namespace NTests {
-        TString gStrValue = "a long string value that can be possible passed as a trace probe string parameter";
-        //TString gStrValue = "short";
-
-        LWTRACE_DEFINE_SYMBOL(gSymbol, "a long symbol value that can be possible passed as a trace probe string parameter");
-
-        struct TConfig {
-            size_t Cycles;
-            size_t Runs;
-            bool UnsafeLWTrace;
-
-            TConfig() {
-                Cycles = 100000;
-                Runs = 10;
-                UnsafeLWTrace = false;
-            }
-        };
-
-        struct TMeasure {
-            double Average;
-            double Sigma;
-            TMeasure(double a, double s)
-                : Average(a)
-                , Sigma(s)
-            {
-            }
-        };
-
-#define DEFINE_MEASUREMENT(name, ...)                                             \
-    double name##OneRun(const TConfig& cfg) {                                     \
-        TInstant t0 = Now();                                                      \
-        for (size_t i = 0; i < cfg.Cycles; i++) {                                 \
-            HOTSPOT(name, ##__VA_ARGS__);                                         \
-            HOTSPOT(name, ##__VA_ARGS__);                                         \
-            HOTSPOT(name, ##__VA_ARGS__);                                         \
-            HOTSPOT(name, ##__VA_ARGS__);                                         \
-            HOTSPOT(name, ##__VA_ARGS__);                                         \
-            HOTSPOT(name, ##__VA_ARGS__);                                         \
-            HOTSPOT(name, ##__VA_ARGS__);                                         \
-            HOTSPOT(name, ##__VA_ARGS__);                                         \
-            HOTSPOT(name, ##__VA_ARGS__);                                         \
-            HOTSPOT(name, ##__VA_ARGS__);                                         \
-        }                                                                         \
-        TInstant t1 = Now();                                                      \
-        return double(t1.MicroSeconds() - t0.MicroSeconds()) / (cfg.Cycles * 10); \
-    }                                                                             \
-    TMeasure name##Time(const TConfig& cfg) {                                     \
-        double v = 0;                                                             \
-        double vSq = 0;                                                           \
-        for (size_t i = 0; i < cfg.Runs; i++) {                                   \
-            double value = name##OneRun(cfg);                                     \
-            v += value;                                                           \
-            vSq += value * value;                                                 \
-        }                                                                         \
-        v /= cfg.Runs;                                                            \
-        vSq /= cfg.Runs;                                                          \
-        return TMeasure(v, sqrt(vSq - v * v));                                    \
-    }                                                                             \
-    /**/
-
-        class TProbes: public TProbeRegistry {
-        public:
-            TManager Mngr;
-
-            TProbes(bool destructiveActionsAllowed)
-                : Mngr(*this, destructiveActionsAllowed)
-            {
-                AddProbesList(LWTRACE_GET_PROBES(LWTRACE_TESTS_PROVIDER));
-            }
-
-#define HOTSPOT(name, ...) LWPROBE(name, ##__VA_ARGS__);
-            DEFINE_MEASUREMENT(Simplest);
-            DEFINE_MEASUREMENT(IntParam, 123);
-            DEFINE_MEASUREMENT(StringParam, gStrValue);
-            DEFINE_MEASUREMENT(SymbolParam, gSymbol);
-            DEFINE_MEASUREMENT(CheckParam, TCheck(13));
-#undef HOTSPOT
-        };
-
-        class TInMemoryLogTest {
-        public:
-            TInMemoryLog Log;
-
-            TInMemoryLogTest()
-                : Log(1000)
-            {
-            }
-
-#define HOTSPOT(name, ...) LWEVENT(name, Log, true, ##__VA_ARGS__);
-            DEFINE_MEASUREMENT(TwoParamsEvent, 666, TString("bla-bla-bla"));
-#undef HOTSPOT
-        };
-
-        class TInMemoryLogCheckTest {
-        public:
-            TInMemoryLog Log;
-
-            TInMemoryLogCheckTest()
-                : Log(1000)
-            {
-            }
-
-#define HOTSPOT(name, ...) LWEVENT(name, Log, true, ##__VA_ARGS__);
-            DEFINE_MEASUREMENT(TwoParamsCheckEvent, TCheck(666), TString("bla-bla-bla"));
-#undef HOTSPOT
-        };
-
-        NLWTrace::TQuery MakeQuery(const TString& queryStr) {
-            NLWTrace::TQuery query;
-            google::protobuf::TextFormat::ParseFromString(queryStr, &query);
-            return query;
-        }
-
-        void NoExec(const TConfig& cfg) {
-            TProbes p(cfg.UnsafeLWTrace);
-            Cout << "call to probe w/o executor: " << p.SimplestTime(cfg) << Endl;
-        }
-
-        void Log(const TConfig& cfg) {
-            TProbes p(cfg.UnsafeLWTrace);
-            p.Mngr.New("test-trace", MakeQuery(
-                                         "Blocks {"
-                                         "    ProbeDesc {"
-                                         "        Name: \"Simplest\""
-                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                         "    }"
-                                         "    Action {"
-                                         "        LogAction {"
-                                         "            LogTimestamp: false"
-                                         "        }"
-                                         "    }"
-                                         "}"));
-            Cout << "call to probe with logging executor: " << p.SimplestTime(cfg) << Endl;
-        }
-
-        void LogTs(const TConfig& cfg) {
-            TProbes p(cfg.UnsafeLWTrace);
-            p.Mngr.New("test-trace", MakeQuery(
-                                         "Blocks {"
-                                         "    ProbeDesc {"
-                                         "        Name: \"Simplest\""
-                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                         "    }"
-                                         "    Action {"
-                                         "        LogAction {"
-                                         "            LogTimestamp: true"
-                                         "        }"
-                                         "    }"
-                                         "}"));
-            Cout << "call to probe with logging (+timestamp) executor: " << p.SimplestTime(cfg) << Endl;
-        }
-
-        void FalseIntFilter(const TConfig& cfg) {
-            TProbes p(cfg.UnsafeLWTrace);
-            p.Mngr.New("test-trace", MakeQuery(
-                                         "Blocks {"
-                                         "    ProbeDesc {"
-                                         "        Name: \"IntParam\""
-                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                         "    }"
-                                         "    Predicate {"
-                                         "        Operators {"
-                                         "            Type: OT_GT"
-                                         "            Argument {"
-                                         "                Param: \"value\""
-                                         "            }"
-                                         "            Argument {"
-                                         "                Value: \"1000\""
-                                         "            }"
-                                         "        }"
-                                         "    }"
-                                         "    Action {"
-                                         "        LogAction {"
-                                         "            LogTimestamp: false"
-                                         "        }"
-                                         "    }"
-                                         "}"));
-            Cout << "call to probe with int filter (always false) executor: " << p.IntParamTime(cfg) << Endl;
-        }
-
-        void LogIntAfterFilter(const TConfig& cfg) {
-            TProbes p(cfg.UnsafeLWTrace);
-            p.Mngr.New("test-trace", MakeQuery(
-                                         "Blocks {"
-                                         "    ProbeDesc {"
-                                         "        Name: \"IntParam\""
-                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                         "    }"
-                                         "    Predicate {"
-                                         "        Operators {"
-                                         "            Type: OT_GT"
-                                         "            Argument {"
-                                         "                Param: \"value\""
-                                         "            }"
-                                         "            Argument {"
-                                         "                Value: \"0\""
-                                         "            }"
-                                         "        }"
-                                         "    }"
-                                         "    Action {"
-                                         "        LogAction {"
-                                         "            LogTimestamp: false"
-                                         "        }"
-                                         "    }"
-                                         "}"));
-            Cout << "call to probe with int filter (always true) and log executors: " << p.IntParamTime(cfg) << Endl;
-        }
-
-        void LogInt(const TConfig& cfg) {
-            TProbes p(cfg.UnsafeLWTrace);
-            p.Mngr.New("test-trace", MakeQuery(
-                                         "Blocks {"
-                                         "    ProbeDesc {"
-                                         "        Name: \"IntParam\""
-                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                         "    }"
-                                         "    Action {"
-                                         "        LogAction {"
-                                         "            LogTimestamp: false"
-                                         "        }"
-                                         "    }"
-                                         "}"));
-            Cout << "call to int probe with log executor: " << p.IntParamTime(cfg) << Endl;
-        }
-
-        void FalseStringFilter(const TConfig& cfg) {
-            TProbes p(cfg.UnsafeLWTrace);
-            p.Mngr.New("test-trace", MakeQuery(
-                                         "Blocks {"
-                                         "    ProbeDesc {"
-                                         "        Name: \"StringParam\""
-                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                         "    }"
-                                         "    Predicate {"
-                                         "        Operators {"
-                                         "            Type: OT_EQ"
-                                         "            Argument {"
-                                         "                Param: \"value\""
-                                         "            }"
-                                         "            Argument {"
-                                         "                Value: \"string that never can exist\""
-                                         "            }"
-                                         "        }"
-                                         "    }"
-                                         "    Action {"
-                                         "        LogAction {"
-                                         "            LogTimestamp: false"
-                                         "        }"
-                                         "    }"
-                                         "}"));
-            Cout << "call to probe with string filter (always false) executor: " << p.StringParamTime(cfg) << Endl;
-        }
-
-        void FalseStringFilterPartialMatch(const TConfig& cfg) {
-            TProbes p(cfg.UnsafeLWTrace);
-            p.Mngr.New("test-trace", MakeQuery(
-                                         "Blocks {"
-                                         "    ProbeDesc {"
-                                         "        Name: \"StringParam\""
-                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                         "    }"
-                                         "    Predicate {"
-                                         "        Operators {"
-                                         "            Type: OT_EQ"
-                                         "            Argument {"
-                                         "                Param: \"value\""
-                                         "            }"
-                                         "            Argument {"
-                                         "                Value: \"" +
-                                         gStrValue + "-not-full-match\""
-                                                     "            }"
-                                                     "        }"
-                                                     "    }"
-                                                     "    Action {"
-                                                     "        LogAction {"
-                                                     "            LogTimestamp: false"
-                                                     "        }"
-                                                     "    }"
-                                                     "}"));
-            Cout << "call to probe with string filter (always false) executor: " << p.StringParamTime(cfg) << Endl;
-        }
-
-        void LogStringAfterFilter(const TConfig& cfg) {
-            TProbes p(cfg.UnsafeLWTrace);
-            p.Mngr.New("test-trace", MakeQuery(
-                                         "Blocks {"
-                                         "    ProbeDesc {"
-                                         "        Name: \"StringParam\""
-                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                         "    }"
-                                         "    Predicate {"
-                                         "        Operators {"
-                                         "            Type: OT_EQ"
-                                         "            Argument {"
-                                         "                Param: \"value\""
-                                         "            }"
-                                         "            Argument {"
-                                         "                Value: \"" +
-                                         gStrValue + "\""
-                                                     "            }"
-                                                     "        }"
-                                                     "    }"
-                                                     "    Action {"
-                                                     "        LogAction {"
-                                                     "            LogTimestamp: false"
-                                                     "        }"
-                                                     "    }"
-                                                     "}"));
-            Cout << "call to probe with string filter (always true) and log executors: " << p.StringParamTime(cfg) << Endl;
-        }
-
-        void LogString(const TConfig& cfg) {
-            TProbes p(cfg.UnsafeLWTrace);
-            p.Mngr.New("test-trace", MakeQuery(
-                                         "Blocks {"
-                                         "    ProbeDesc {"
-                                         "        Name: \"StringParam\""
-                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                         "    }"
-                                         "    Action {"
-                                         "        LogAction {"
-                                         "            LogTimestamp: false"
-                                         "        }"
-                                         "    }"
-                                         "}"));
-            Cout << "call to string probe with log executor: " << p.StringParamTime(cfg) << Endl;
-        }
-
-        void LogSymbol(const TConfig& cfg) {
-            TProbes p(cfg.UnsafeLWTrace);
-            p.Mngr.New("test-trace", MakeQuery(
-                                         "Blocks {"
-                                         "    ProbeDesc {"
-                                         "        Name: \"SymbolParam\""
-                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                         "    }"
-                                         "    Action {"
-                                         "        LogAction {"
-                                         "            LogTimestamp: false"
-                                         "        }"
-                                         "    }"
-                                         "}"));
-            Cout << "call to symbol probe with log executor: " << p.SymbolParamTime(cfg) << Endl;
-        }
-
-        void LogCheck(const TConfig& cfg) {
-            TProbes p(cfg.UnsafeLWTrace);
-            p.Mngr.New("test-trace", MakeQuery(
-                                         "Blocks {"
-                                         "    ProbeDesc {"
-                                         "        Name: \"CheckParam\""
-                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                         "    }"
-                                         "    Action {"
-                                         "        LogAction {"
-                                         "            LogTimestamp: false"
-                                         "        }"
-                                         "    }"
-                                         "}"));
-            Cout << "call to check probe with log executor: " << p.CheckParamTime(cfg) << Endl;
-        }
-
-        void InMemoryLog(const TConfig& cfg) {
-            TInMemoryLogTest test;
-            Cout << "log to in-memory log with (int, string) writer: " << test.TwoParamsEventTime(cfg) << Endl;
-        }
-
-        void InMemoryLogCheck(const TConfig& cfg) {
-            TInMemoryLogCheckTest test;
-            Cout << "log to in-memory log with (leak-check, string) writer: " << test.TwoParamsCheckEventTime(cfg) << Endl;
-        }
-
-        void MultipleActionsCheck(const TConfig& cfg) {
-            TProbes p(cfg.UnsafeLWTrace);
-            p.Mngr.New("test-multipleActions", MakeQuery(
-                                                   "Blocks {"
-                                                   "   ProbeDesc {"
-                                                   "       Name: \"Simplest\""
-                                                   "       Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                                   "   }"
-                                                   "   Predicate {"
-                                                   "       Operators {"
-                                                   "           Type: OT_LT"
-                                                   "           Argument {"
-                                                   "               Variable: \"counter\""
-                                                   "           }"
-                                                   "           Argument {"
-                                                   "               Value: \"2\""
-                                                   "           }"
-                                                   "       }"
-                                                   "   }"
-                                                   "   Action {"
-                                                   "       StatementAction {"
-                                                   "           Type: ST_INC"
-                                                   "           Argument {"
-                                                   "               Variable: \"counter\""
-                                                   "           }"
-                                                   "       }"
-                                                   "   }"
-                                                   "   Action {"
-                                                   "       StatementAction {"
-                                                   "           Type: ST_DEC"
-                                                   "           Argument {"
-                                                   "               Variable: \"counter\""
-                                                   "           }"
-                                                   "       }"
-                                                   "   }"
-                                                   "   Action {"
-                                                   "       StatementAction {"
-                                                   "           Type: ST_SUB_EQ"
-                                                   "           Argument {"
-                                                   "               Variable: \"counter\""
-                                                   "           }"
-                                                   "           Argument {"
-                                                   "               Value: \"-1\""
-                                                   "           }"
-                                                   "       }"
-                                                   "   }"
-                                                   "   Action {"
-                                                   "       SleepAction {"
-                                                   "           NanoSeconds: 25000000" // 25 ms
-                                                   "       }"
-                                                   "   }"
-                                                   "   Action {"
-                                                   "       SleepAction {"
-                                                   "           NanoSeconds: 25000000" // 25 ms
-                                                   "       }"
-                                                   "   }"
-                                                   "}"));
-            TInstant t0 = Now();
-            for (size_t i = 0; i < 10; i++) {
-                LWPROBE(Simplest);
-            }
-            TInstant t1 = Now();
-            ui64 duration = (t1.NanoSeconds() - t0.NanoSeconds());
-            Cout << "multiple sleep tested, expected 100000000 ns, measured " << duration << " ns" << Endl;
-        }
-
-        void SleepCheck(const TConfig& cfg) {
-            TProbes p(cfg.UnsafeLWTrace);
-            p.Mngr.New("test-sleep", MakeQuery(
-                                         "Blocks {"
-                                         "   ProbeDesc {"
-                                         "       Name: \"Simplest\""
-                                         "       Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                         "   }"
-                                         "   Action {"
-                                         "       SleepAction {"
-                                         "           NanoSeconds: 100000000" // 100 ms
-                                         "       }"
-                                         "   }"
-                                         "}"));
-            TInstant t0 = Now();
-            for (size_t i = 0; i < 10; i++) {
-                LWPROBE(Simplest);
-            }
-            TInstant t1 = Now();
-            ui64 duration = (t1.NanoSeconds() - t0.NanoSeconds()) / (ui64)10;
-            Cout << "sleep tested, expected 100000000 ns, measured " << duration << " ns" << Endl;
-        }
-
-        void KillCheckChild(const TConfig& cfg, TPipeHandle& writer) {
-            TProbes p(cfg.UnsafeLWTrace);
-            p.Mngr.New("test-kill", MakeQuery(
-                                        "Blocks {"
-                                        "   ProbeDesc {"
-                                        "       Name: \"Simplest\""
-                                        "       Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                        "   }"
-                                        "   Action {"
-                                        "       KillAction {"
-                                        "       }"
-                                        "   }"
-                                        "}"));
-            // Send "i'm alive and ok" to the parent (0)
-            char buffer = 0;
-            writer.Write(&buffer, 1);
-            LWPROBE(Simplest);
-            // Send "i'm alive and that's not OK" to the parent (1)
-            buffer = 1;
-            writer.Write(&buffer, 1);
-        }
-
-        void KillCheckParent(TPipeHandle& reader) {
-            char buffer = -1;
-            reader.Read(&buffer, 1);
-            reader.Read(&buffer, 1);
-            if (buffer == -1)
-                Cerr << "\t\terror: process died before transfering OK message during the KillAction test!" << Endl;
-            else if (buffer != 0)
-                Cerr << "\t\terror: process failed to die on time during the KillAction test!" << Endl;
-            else
-                Cout << "\t\tkill executor tested OK." << Endl;
-        }
-
-        void KillCheck(const TConfig& cfg) {
+    /**/ 
+ 
+LWTRACE_DECLARE_PROVIDER(LWTRACE_TESTS_PROVIDER) 
+LWTRACE_DEFINE_PROVIDER(LWTRACE_TESTS_PROVIDER) 
+LWTRACE_USING(LWTRACE_TESTS_PROVIDER) 
+ 
+namespace NLWTrace { 
+    namespace NTests { 
+        TString gStrValue = "a long string value that can be possible passed as a trace probe string parameter"; 
+        //TString gStrValue = "short"; 
+ 
+        LWTRACE_DEFINE_SYMBOL(gSymbol, "a long symbol value that can be possible passed as a trace probe string parameter"); 
+ 
+        struct TConfig { 
+            size_t Cycles; 
+            size_t Runs; 
+            bool UnsafeLWTrace; 
+ 
+            TConfig() { 
+                Cycles = 100000; 
+                Runs = 10; 
+                UnsafeLWTrace = false; 
+            } 
+        }; 
+ 
+        struct TMeasure { 
+            double Average; 
+            double Sigma; 
+            TMeasure(double a, double s) 
+                : Average(a) 
+                , Sigma(s) 
+            { 
+            } 
+        }; 
+ 
+#define DEFINE_MEASUREMENT(name, ...)                                             \ 
+    double name##OneRun(const TConfig& cfg) {                                     \ 
+        TInstant t0 = Now();                                                      \ 
+        for (size_t i = 0; i < cfg.Cycles; i++) {                                 \ 
+            HOTSPOT(name, ##__VA_ARGS__);                                         \ 
+            HOTSPOT(name, ##__VA_ARGS__);                                         \ 
+            HOTSPOT(name, ##__VA_ARGS__);                                         \ 
+            HOTSPOT(name, ##__VA_ARGS__);                                         \ 
+            HOTSPOT(name, ##__VA_ARGS__);                                         \ 
+            HOTSPOT(name, ##__VA_ARGS__);                                         \ 
+            HOTSPOT(name, ##__VA_ARGS__);                                         \ 
+            HOTSPOT(name, ##__VA_ARGS__);                                         \ 
+            HOTSPOT(name, ##__VA_ARGS__);                                         \ 
+            HOTSPOT(name, ##__VA_ARGS__);                                         \ 
+        }                                                                         \ 
+        TInstant t1 = Now();                                                      \ 
+        return double(t1.MicroSeconds() - t0.MicroSeconds()) / (cfg.Cycles * 10); \ 
+    }                                                                             \ 
+    TMeasure name##Time(const TConfig& cfg) {                                     \ 
+        double v = 0;                                                             \ 
+        double vSq = 0;                                                           \ 
+        for (size_t i = 0; i < cfg.Runs; i++) {                                   \ 
+            double value = name##OneRun(cfg);                                     \ 
+            v += value;                                                           \ 
+            vSq += value * value;                                                 \ 
+        }                                                                         \ 
+        v /= cfg.Runs;                                                            \ 
+        vSq /= cfg.Runs;                                                          \ 
+        return TMeasure(v, sqrt(vSq - v * v));                                    \ 
+    }                                                                             \ 
+    /**/ 
+ 
+        class TProbes: public TProbeRegistry { 
+        public: 
+            TManager Mngr; 
+ 
+            TProbes(bool destructiveActionsAllowed) 
+                : Mngr(*this, destructiveActionsAllowed) 
+            { 
+                AddProbesList(LWTRACE_GET_PROBES(LWTRACE_TESTS_PROVIDER)); 
+            } 
+ 
+#define HOTSPOT(name, ...) LWPROBE(name, ##__VA_ARGS__); 
+            DEFINE_MEASUREMENT(Simplest); 
+            DEFINE_MEASUREMENT(IntParam, 123); 
+            DEFINE_MEASUREMENT(StringParam, gStrValue); 
+            DEFINE_MEASUREMENT(SymbolParam, gSymbol); 
+            DEFINE_MEASUREMENT(CheckParam, TCheck(13)); 
+#undef HOTSPOT 
+        }; 
+ 
+        class TInMemoryLogTest { 
+        public: 
+            TInMemoryLog Log; 
+ 
+            TInMemoryLogTest() 
+                : Log(1000) 
+            { 
+            } 
+ 
+#define HOTSPOT(name, ...) LWEVENT(name, Log, true, ##__VA_ARGS__); 
+            DEFINE_MEASUREMENT(TwoParamsEvent, 666, TString("bla-bla-bla")); 
+#undef HOTSPOT 
+        }; 
+ 
+        class TInMemoryLogCheckTest { 
+        public: 
+            TInMemoryLog Log; 
+ 
+            TInMemoryLogCheckTest() 
+                : Log(1000) 
+            { 
+            } 
+ 
+#define HOTSPOT(name, ...) LWEVENT(name, Log, true, ##__VA_ARGS__); 
+            DEFINE_MEASUREMENT(TwoParamsCheckEvent, TCheck(666), TString("bla-bla-bla")); 
+#undef HOTSPOT 
+        }; 
+ 
+        NLWTrace::TQuery MakeQuery(const TString& queryStr) { 
+            NLWTrace::TQuery query; 
+            google::protobuf::TextFormat::ParseFromString(queryStr, &query); 
+            return query; 
+        } 
+ 
+        void NoExec(const TConfig& cfg) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            Cout << "call to probe w/o executor: " << p.SimplestTime(cfg) << Endl; 
+        } 
+ 
+        void Log(const TConfig& cfg) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            p.Mngr.New("test-trace", MakeQuery( 
+                                         "Blocks {" 
+                                         "    ProbeDesc {" 
+                                         "        Name: \"Simplest\"" 
+                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                         "    }" 
+                                         "    Action {" 
+                                         "        LogAction {" 
+                                         "            LogTimestamp: false" 
+                                         "        }" 
+                                         "    }" 
+                                         "}")); 
+            Cout << "call to probe with logging executor: " << p.SimplestTime(cfg) << Endl; 
+        } 
+ 
+        void LogTs(const TConfig& cfg) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            p.Mngr.New("test-trace", MakeQuery( 
+                                         "Blocks {" 
+                                         "    ProbeDesc {" 
+                                         "        Name: \"Simplest\"" 
+                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                         "    }" 
+                                         "    Action {" 
+                                         "        LogAction {" 
+                                         "            LogTimestamp: true" 
+                                         "        }" 
+                                         "    }" 
+                                         "}")); 
+            Cout << "call to probe with logging (+timestamp) executor: " << p.SimplestTime(cfg) << Endl; 
+        } 
+ 
+        void FalseIntFilter(const TConfig& cfg) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            p.Mngr.New("test-trace", MakeQuery( 
+                                         "Blocks {" 
+                                         "    ProbeDesc {" 
+                                         "        Name: \"IntParam\"" 
+                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                         "    }" 
+                                         "    Predicate {" 
+                                         "        Operators {" 
+                                         "            Type: OT_GT" 
+                                         "            Argument {" 
+                                         "                Param: \"value\"" 
+                                         "            }" 
+                                         "            Argument {" 
+                                         "                Value: \"1000\"" 
+                                         "            }" 
+                                         "        }" 
+                                         "    }" 
+                                         "    Action {" 
+                                         "        LogAction {" 
+                                         "            LogTimestamp: false" 
+                                         "        }" 
+                                         "    }" 
+                                         "}")); 
+            Cout << "call to probe with int filter (always false) executor: " << p.IntParamTime(cfg) << Endl; 
+        } 
+ 
+        void LogIntAfterFilter(const TConfig& cfg) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            p.Mngr.New("test-trace", MakeQuery( 
+                                         "Blocks {" 
+                                         "    ProbeDesc {" 
+                                         "        Name: \"IntParam\"" 
+                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                         "    }" 
+                                         "    Predicate {" 
+                                         "        Operators {" 
+                                         "            Type: OT_GT" 
+                                         "            Argument {" 
+                                         "                Param: \"value\"" 
+                                         "            }" 
+                                         "            Argument {" 
+                                         "                Value: \"0\"" 
+                                         "            }" 
+                                         "        }" 
+                                         "    }" 
+                                         "    Action {" 
+                                         "        LogAction {" 
+                                         "            LogTimestamp: false" 
+                                         "        }" 
+                                         "    }" 
+                                         "}")); 
+            Cout << "call to probe with int filter (always true) and log executors: " << p.IntParamTime(cfg) << Endl; 
+        } 
+ 
+        void LogInt(const TConfig& cfg) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            p.Mngr.New("test-trace", MakeQuery( 
+                                         "Blocks {" 
+                                         "    ProbeDesc {" 
+                                         "        Name: \"IntParam\"" 
+                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                         "    }" 
+                                         "    Action {" 
+                                         "        LogAction {" 
+                                         "            LogTimestamp: false" 
+                                         "        }" 
+                                         "    }" 
+                                         "}")); 
+            Cout << "call to int probe with log executor: " << p.IntParamTime(cfg) << Endl; 
+        } 
+ 
+        void FalseStringFilter(const TConfig& cfg) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            p.Mngr.New("test-trace", MakeQuery( 
+                                         "Blocks {" 
+                                         "    ProbeDesc {" 
+                                         "        Name: \"StringParam\"" 
+                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                         "    }" 
+                                         "    Predicate {" 
+                                         "        Operators {" 
+                                         "            Type: OT_EQ" 
+                                         "            Argument {" 
+                                         "                Param: \"value\"" 
+                                         "            }" 
+                                         "            Argument {" 
+                                         "                Value: \"string that never can exist\"" 
+                                         "            }" 
+                                         "        }" 
+                                         "    }" 
+                                         "    Action {" 
+                                         "        LogAction {" 
+                                         "            LogTimestamp: false" 
+                                         "        }" 
+                                         "    }" 
+                                         "}")); 
+            Cout << "call to probe with string filter (always false) executor: " << p.StringParamTime(cfg) << Endl; 
+        } 
+ 
+        void FalseStringFilterPartialMatch(const TConfig& cfg) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            p.Mngr.New("test-trace", MakeQuery( 
+                                         "Blocks {" 
+                                         "    ProbeDesc {" 
+                                         "        Name: \"StringParam\"" 
+                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                         "    }" 
+                                         "    Predicate {" 
+                                         "        Operators {" 
+                                         "            Type: OT_EQ" 
+                                         "            Argument {" 
+                                         "                Param: \"value\"" 
+                                         "            }" 
+                                         "            Argument {" 
+                                         "                Value: \"" + 
+                                         gStrValue + "-not-full-match\"" 
+                                                     "            }" 
+                                                     "        }" 
+                                                     "    }" 
+                                                     "    Action {" 
+                                                     "        LogAction {" 
+                                                     "            LogTimestamp: false" 
+                                                     "        }" 
+                                                     "    }" 
+                                                     "}")); 
+            Cout << "call to probe with string filter (always false) executor: " << p.StringParamTime(cfg) << Endl; 
+        } 
+ 
+        void LogStringAfterFilter(const TConfig& cfg) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            p.Mngr.New("test-trace", MakeQuery( 
+                                         "Blocks {" 
+                                         "    ProbeDesc {" 
+                                         "        Name: \"StringParam\"" 
+                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                         "    }" 
+                                         "    Predicate {" 
+                                         "        Operators {" 
+                                         "            Type: OT_EQ" 
+                                         "            Argument {" 
+                                         "                Param: \"value\"" 
+                                         "            }" 
+                                         "            Argument {" 
+                                         "                Value: \"" + 
+                                         gStrValue + "\"" 
+                                                     "            }" 
+                                                     "        }" 
+                                                     "    }" 
+                                                     "    Action {" 
+                                                     "        LogAction {" 
+                                                     "            LogTimestamp: false" 
+                                                     "        }" 
+                                                     "    }" 
+                                                     "}")); 
+            Cout << "call to probe with string filter (always true) and log executors: " << p.StringParamTime(cfg) << Endl; 
+        } 
+ 
+        void LogString(const TConfig& cfg) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            p.Mngr.New("test-trace", MakeQuery( 
+                                         "Blocks {" 
+                                         "    ProbeDesc {" 
+                                         "        Name: \"StringParam\"" 
+                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                         "    }" 
+                                         "    Action {" 
+                                         "        LogAction {" 
+                                         "            LogTimestamp: false" 
+                                         "        }" 
+                                         "    }" 
+                                         "}")); 
+            Cout << "call to string probe with log executor: " << p.StringParamTime(cfg) << Endl; 
+        } 
+ 
+        void LogSymbol(const TConfig& cfg) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            p.Mngr.New("test-trace", MakeQuery( 
+                                         "Blocks {" 
+                                         "    ProbeDesc {" 
+                                         "        Name: \"SymbolParam\"" 
+                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                         "    }" 
+                                         "    Action {" 
+                                         "        LogAction {" 
+                                         "            LogTimestamp: false" 
+                                         "        }" 
+                                         "    }" 
+                                         "}")); 
+            Cout << "call to symbol probe with log executor: " << p.SymbolParamTime(cfg) << Endl; 
+        } 
+ 
+        void LogCheck(const TConfig& cfg) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            p.Mngr.New("test-trace", MakeQuery( 
+                                         "Blocks {" 
+                                         "    ProbeDesc {" 
+                                         "        Name: \"CheckParam\"" 
+                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                         "    }" 
+                                         "    Action {" 
+                                         "        LogAction {" 
+                                         "            LogTimestamp: false" 
+                                         "        }" 
+                                         "    }" 
+                                         "}")); 
+            Cout << "call to check probe with log executor: " << p.CheckParamTime(cfg) << Endl; 
+        } 
+ 
+        void InMemoryLog(const TConfig& cfg) { 
+            TInMemoryLogTest test; 
+            Cout << "log to in-memory log with (int, string) writer: " << test.TwoParamsEventTime(cfg) << Endl; 
+        } 
+ 
+        void InMemoryLogCheck(const TConfig& cfg) { 
+            TInMemoryLogCheckTest test; 
+            Cout << "log to in-memory log with (leak-check, string) writer: " << test.TwoParamsCheckEventTime(cfg) << Endl; 
+        } 
+ 
+        void MultipleActionsCheck(const TConfig& cfg) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            p.Mngr.New("test-multipleActions", MakeQuery( 
+                                                   "Blocks {" 
+                                                   "   ProbeDesc {" 
+                                                   "       Name: \"Simplest\"" 
+                                                   "       Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                                   "   }" 
+                                                   "   Predicate {" 
+                                                   "       Operators {" 
+                                                   "           Type: OT_LT" 
+                                                   "           Argument {" 
+                                                   "               Variable: \"counter\"" 
+                                                   "           }" 
+                                                   "           Argument {" 
+                                                   "               Value: \"2\"" 
+                                                   "           }" 
+                                                   "       }" 
+                                                   "   }" 
+                                                   "   Action {" 
+                                                   "       StatementAction {" 
+                                                   "           Type: ST_INC" 
+                                                   "           Argument {" 
+                                                   "               Variable: \"counter\"" 
+                                                   "           }" 
+                                                   "       }" 
+                                                   "   }" 
+                                                   "   Action {" 
+                                                   "       StatementAction {" 
+                                                   "           Type: ST_DEC" 
+                                                   "           Argument {" 
+                                                   "               Variable: \"counter\"" 
+                                                   "           }" 
+                                                   "       }" 
+                                                   "   }" 
+                                                   "   Action {" 
+                                                   "       StatementAction {" 
+                                                   "           Type: ST_SUB_EQ" 
+                                                   "           Argument {" 
+                                                   "               Variable: \"counter\"" 
+                                                   "           }" 
+                                                   "           Argument {" 
+                                                   "               Value: \"-1\"" 
+                                                   "           }" 
+                                                   "       }" 
+                                                   "   }" 
+                                                   "   Action {" 
+                                                   "       SleepAction {" 
+                                                   "           NanoSeconds: 25000000" // 25 ms 
+                                                   "       }" 
+                                                   "   }" 
+                                                   "   Action {" 
+                                                   "       SleepAction {" 
+                                                   "           NanoSeconds: 25000000" // 25 ms 
+                                                   "       }" 
+                                                   "   }" 
+                                                   "}")); 
+            TInstant t0 = Now(); 
+            for (size_t i = 0; i < 10; i++) { 
+                LWPROBE(Simplest); 
+            } 
+            TInstant t1 = Now(); 
+            ui64 duration = (t1.NanoSeconds() - t0.NanoSeconds()); 
+            Cout << "multiple sleep tested, expected 100000000 ns, measured " << duration << " ns" << Endl; 
+        } 
+
+        void SleepCheck(const TConfig& cfg) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            p.Mngr.New("test-sleep", MakeQuery( 
+                                         "Blocks {" 
+                                         "   ProbeDesc {" 
+                                         "       Name: \"Simplest\"" 
+                                         "       Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                         "   }" 
+                                         "   Action {" 
+                                         "       SleepAction {" 
+                                         "           NanoSeconds: 100000000" // 100 ms 
+                                         "       }" 
+                                         "   }" 
+                                         "}")); 
+            TInstant t0 = Now(); 
+            for (size_t i = 0; i < 10; i++) { 
+                LWPROBE(Simplest); 
+            } 
+            TInstant t1 = Now(); 
+            ui64 duration = (t1.NanoSeconds() - t0.NanoSeconds()) / (ui64)10; 
+            Cout << "sleep tested, expected 100000000 ns, measured " << duration << " ns" << Endl; 
+        } 
+
+        void KillCheckChild(const TConfig& cfg, TPipeHandle& writer) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            p.Mngr.New("test-kill", MakeQuery( 
+                                        "Blocks {" 
+                                        "   ProbeDesc {" 
+                                        "       Name: \"Simplest\"" 
+                                        "       Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                        "   }" 
+                                        "   Action {" 
+                                        "       KillAction {" 
+                                        "       }" 
+                                        "   }" 
+                                        "}")); 
+            // Send "i'm alive and ok" to the parent (0) 
+            char buffer = 0; 
+            writer.Write(&buffer, 1); 
+            LWPROBE(Simplest); 
+            // Send "i'm alive and that's not OK" to the parent (1) 
+            buffer = 1; 
+            writer.Write(&buffer, 1); 
+        } 
+
+        void KillCheckParent(TPipeHandle& reader) { 
+            char buffer = -1; 
+            reader.Read(&buffer, 1); 
+            reader.Read(&buffer, 1); 
+            if (buffer == -1) 
+                Cerr << "\t\terror: process died before transfering OK message during the KillAction test!" << Endl; 
+            else if (buffer != 0) 
+                Cerr << "\t\terror: process failed to die on time during the KillAction test!" << Endl; 
+            else 
+                Cout << "\t\tkill executor tested OK." << Endl; 
+        } 
+
+        void KillCheck(const TConfig& cfg) { 
 #ifdef _unix_
-            TPipeHandle reader;
-            TPipeHandle writer;
-            TPipeHandle::Pipe(reader, writer);
-            Cout << "forking the process..." << Endl;
-            pid_t cpid = fork();
-            if (cpid == -1) {
-                Cerr << "\t\terror forking for the KillAction test!" << Endl;
-            } else if (cpid == 0) {
-                reader.Close();
-                KillCheckChild(cfg, writer);
-                writer.Close();
-                exit(EXIT_SUCCESS);
-            } else {
-                writer.Close();
-                KillCheckParent(reader);
-                reader.Close();
-            }
+            TPipeHandle reader; 
+            TPipeHandle writer; 
+            TPipeHandle::Pipe(reader, writer); 
+            Cout << "forking the process..." << Endl; 
+            pid_t cpid = fork(); 
+            if (cpid == -1) { 
+                Cerr << "\t\terror forking for the KillAction test!" << Endl; 
+            } else if (cpid == 0) { 
+                reader.Close(); 
+                KillCheckChild(cfg, writer); 
+                writer.Close(); 
+                exit(EXIT_SUCCESS); 
+            } else { 
+                writer.Close(); 
+                KillCheckParent(reader); 
+                reader.Close(); 
+            } 
 #else
-            Cout << "kill action test for windows is not implemented." << Endl;
+            Cout << "kill action test for windows is not implemented." << Endl; 
 #endif
-        }
-
-        void LogIntModFilter(const TConfig& cfg) {
-            TProbes p(cfg.UnsafeLWTrace);
-            p.Mngr.New("test-trace", MakeQuery(
-                                         "Blocks {"
-                                         "    ProbeDesc {"
-                                         "        Name: \"IntParam\""
-                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                         "    }"
-                                         "    Predicate {"
-                                         "        Operators {"
-                                         "            Type: OT_GT"
-                                         "            Argument {"
-                                         "                Param: \"value\""
-                                         "            }"
-                                         "            Argument {"
-                                         "                Value: \"0\""
-                                         "            }"
-                                         "        }"
-                                         "    }"
-                                         "    Action {"
-                                         "        StatementAction {"
-                                         "            Type: ST_ADD_EQ"
-                                         "            Argument {"
-                                         "                Variable: \"counter\""
-                                         "            }"
-                                         "            Argument {"
-                                         "                Value: \"1\""
-                                         "            }"
-                                         "        }"
-                                         "    }"
-                                         "    Action {"
-                                         "        StatementAction {"
-                                         "            Type: ST_ADD"
-                                         "            Argument {"
-                                         "                Variable: \"counter\""
-                                         "            }"
-                                         "            Argument {"
-                                         "                Variable: \"counter\""
-                                         "            }"
-                                         "            Argument {"
-                                         "                Value: \"1\""
-                                         "            }"
-                                         "        }"
-                                         "    }"
-                                         "    Action {"
-                                         "        StatementAction {"
-                                         "            Type: ST_MOD"
-                                         "            Argument {"
-                                         "                Variable: \"counter\""
-                                         "            }"
-                                         "            Argument {"
-                                         "                Variable: \"counter\""
-                                         "            }"
-                                         "            Argument {"
-                                         "                Value: \"20\""
-                                         "            }"
-                                         "        }"
-                                         "    }"
-                                         "}"
-                                         "Blocks {"
-                                         "    ProbeDesc {"
-                                         "        Name: \"IntParam\""
-                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\""
-                                         "    }"
-                                         "    Predicate {"
-                                         "        Operators {"
-                                         "            Type: OT_EQ"
-                                         "            Argument {"
-                                         "                Variable: \"counter\""
-                                         "            }"
-                                         "            Argument {"
-                                         "                Value: \"0\""
-                                         "            }"
-                                         "        }"
-                                         "        Operators {"
-                                         "            Type: OT_GT"
-                                         "            Argument {"
-                                         "                Param: \"value\""
-                                         "            }"
-                                         "            Argument {"
-                                         "                Value: \"0\""
-                                         "            }"
-                                         "        }"
-                                         "    }"
-                                         "    Action {"
-                                         "        LogAction {"
-                                         "            LogTimestamp: false"
-                                         "        }"
-                                         "    }"
-                                         "}"));
-            Cout << "call to probe with int mod filter (always true, mod 10) and log executors: " << p.IntParamTime(cfg) << Endl;
-        }
-
-#define FOR_EACH_TEST()                                \
-    FOR_EACH_TEST_MACRO(LogIntModFilter)               \
-    FOR_EACH_TEST_MACRO(SleepCheck)                    \
-    FOR_EACH_TEST_MACRO(MultipleActionsCheck)          \
-    FOR_EACH_TEST_MACRO(KillCheck)                     \
-    FOR_EACH_TEST_MACRO(InMemoryLog)                   \
-    FOR_EACH_TEST_MACRO(InMemoryLogCheck)              \
-    FOR_EACH_TEST_MACRO(NoExec)                        \
-    FOR_EACH_TEST_MACRO(Log)                           \
-    FOR_EACH_TEST_MACRO(LogTs)                         \
-    FOR_EACH_TEST_MACRO(FalseIntFilter)                \
-    FOR_EACH_TEST_MACRO(LogIntAfterFilter)             \
-    FOR_EACH_TEST_MACRO(LogInt)                        \
-    FOR_EACH_TEST_MACRO(FalseStringFilter)             \
-    FOR_EACH_TEST_MACRO(FalseStringFilterPartialMatch) \
-    FOR_EACH_TEST_MACRO(LogStringAfterFilter)          \
-    FOR_EACH_TEST_MACRO(LogString)                     \
-    FOR_EACH_TEST_MACRO(LogSymbol)                     \
-    FOR_EACH_TEST_MACRO(LogCheck)                      \
-    /**/
-
-        int Main(int argc, char** argv) {
-            TConfig cfg;
-            using namespace NLastGetopt;
-            TOpts opts = NLastGetopt::TOpts::Default();
-            opts.AddLongOption('c', "cycles", "cycles count").RequiredArgument("N").DefaultValue(ToString(cfg.Cycles)).StoreResult(&cfg.Cycles);
-            opts.AddLongOption('r', "runs", "runs count").RequiredArgument("N").DefaultValue(ToString(cfg.Runs)).StoreResult(&cfg.Runs);
-            opts.AddLongOption('u', "unsafe-lwtrace", "allow destructive actions").OptionalValue(ToString(true)).DefaultValue(ToString(false)).StoreResult(&cfg.UnsafeLWTrace);
-            opts.AddHelpOption('h');
-            TOptsParseResult res(&opts, argc, argv);
-
-            TVector<TString> tests = res.GetFreeArgs();
-            if (tests.empty()) {
-#define FOR_EACH_TEST_MACRO(t) tests.push_back(#t);
-                FOR_EACH_TEST()
-#undef FOR_EACH_TEST_MACRO
-            }
-            for (size_t i = 0; i < tests.size(); i++) {
-                const TString& test = tests[i];
-#define FOR_EACH_TEST_MACRO(t) \
-    if (test == #t) {          \
-        Cout << #t ": \t";     \
-        t(cfg);                \
-    }
-                FOR_EACH_TEST()
-#undef FOR_EACH_TEST_MACRO
-            }
-
-            if (TCheck::ObjCount != 0) {
-                Cout << ">>>>> THERE IS AN OBJECT LEAK <<<<<" << Endl;
-                Cout << "NLWTrace::TCheck::ObjCount = " << TCheck::ObjCount << Endl;
-            }
-
-            Cout << "Done" << Endl;
-            return 0;
-        }
-
-    }
-
-}
-
-template <>
+        } 
+
+        void LogIntModFilter(const TConfig& cfg) { 
+            TProbes p(cfg.UnsafeLWTrace); 
+            p.Mngr.New("test-trace", MakeQuery( 
+                                         "Blocks {" 
+                                         "    ProbeDesc {" 
+                                         "        Name: \"IntParam\"" 
+                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                         "    }" 
+                                         "    Predicate {" 
+                                         "        Operators {" 
+                                         "            Type: OT_GT" 
+                                         "            Argument {" 
+                                         "                Param: \"value\"" 
+                                         "            }" 
+                                         "            Argument {" 
+                                         "                Value: \"0\"" 
+                                         "            }" 
+                                         "        }" 
+                                         "    }" 
+                                         "    Action {" 
+                                         "        StatementAction {" 
+                                         "            Type: ST_ADD_EQ" 
+                                         "            Argument {" 
+                                         "                Variable: \"counter\"" 
+                                         "            }" 
+                                         "            Argument {" 
+                                         "                Value: \"1\"" 
+                                         "            }" 
+                                         "        }" 
+                                         "    }" 
+                                         "    Action {" 
+                                         "        StatementAction {" 
+                                         "            Type: ST_ADD" 
+                                         "            Argument {" 
+                                         "                Variable: \"counter\"" 
+                                         "            }" 
+                                         "            Argument {" 
+                                         "                Variable: \"counter\"" 
+                                         "            }" 
+                                         "            Argument {" 
+                                         "                Value: \"1\"" 
+                                         "            }" 
+                                         "        }" 
+                                         "    }" 
+                                         "    Action {" 
+                                         "        StatementAction {" 
+                                         "            Type: ST_MOD" 
+                                         "            Argument {" 
+                                         "                Variable: \"counter\"" 
+                                         "            }" 
+                                         "            Argument {" 
+                                         "                Variable: \"counter\"" 
+                                         "            }" 
+                                         "            Argument {" 
+                                         "                Value: \"20\"" 
+                                         "            }" 
+                                         "        }" 
+                                         "    }" 
+                                         "}" 
+                                         "Blocks {" 
+                                         "    ProbeDesc {" 
+                                         "        Name: \"IntParam\"" 
+                                         "        Provider: \"LWTRACE_TESTS_PROVIDER\"" 
+                                         "    }" 
+                                         "    Predicate {" 
+                                         "        Operators {" 
+                                         "            Type: OT_EQ" 
+                                         "            Argument {" 
+                                         "                Variable: \"counter\"" 
+                                         "            }" 
+                                         "            Argument {" 
+                                         "                Value: \"0\"" 
+                                         "            }" 
+                                         "        }" 
+                                         "        Operators {" 
+                                         "            Type: OT_GT" 
+                                         "            Argument {" 
+                                         "                Param: \"value\"" 
+                                         "            }" 
+                                         "            Argument {" 
+                                         "                Value: \"0\"" 
+                                         "            }" 
+                                         "        }" 
+                                         "    }" 
+                                         "    Action {" 
+                                         "        LogAction {" 
+                                         "            LogTimestamp: false" 
+                                         "        }" 
+                                         "    }" 
+                                         "}")); 
+            Cout << "call to probe with int mod filter (always true, mod 10) and log executors: " << p.IntParamTime(cfg) << Endl; 
+        } 
+
+#define FOR_EACH_TEST()                                \ 
+    FOR_EACH_TEST_MACRO(LogIntModFilter)               \ 
+    FOR_EACH_TEST_MACRO(SleepCheck)                    \ 
+    FOR_EACH_TEST_MACRO(MultipleActionsCheck)          \ 
+    FOR_EACH_TEST_MACRO(KillCheck)                     \ 
+    FOR_EACH_TEST_MACRO(InMemoryLog)                   \ 
+    FOR_EACH_TEST_MACRO(InMemoryLogCheck)              \ 
+    FOR_EACH_TEST_MACRO(NoExec)                        \ 
+    FOR_EACH_TEST_MACRO(Log)                           \ 
+    FOR_EACH_TEST_MACRO(LogTs)                         \ 
+    FOR_EACH_TEST_MACRO(FalseIntFilter)                \ 
+    FOR_EACH_TEST_MACRO(LogIntAfterFilter)             \ 
+    FOR_EACH_TEST_MACRO(LogInt)                        \ 
+    FOR_EACH_TEST_MACRO(FalseStringFilter)             \ 
+    FOR_EACH_TEST_MACRO(FalseStringFilterPartialMatch) \ 
+    FOR_EACH_TEST_MACRO(LogStringAfterFilter)          \ 
+    FOR_EACH_TEST_MACRO(LogString)                     \ 
+    FOR_EACH_TEST_MACRO(LogSymbol)                     \ 
+    FOR_EACH_TEST_MACRO(LogCheck)                      \ 
+    /**/ 
+ 
+        int Main(int argc, char** argv) { 
+            TConfig cfg; 
+            using namespace NLastGetopt; 
+            TOpts opts = NLastGetopt::TOpts::Default(); 
+            opts.AddLongOption('c', "cycles", "cycles count").RequiredArgument("N").DefaultValue(ToString(cfg.Cycles)).StoreResult(&cfg.Cycles); 
+            opts.AddLongOption('r', "runs", "runs count").RequiredArgument("N").DefaultValue(ToString(cfg.Runs)).StoreResult(&cfg.Runs); 
+            opts.AddLongOption('u', "unsafe-lwtrace", "allow destructive actions").OptionalValue(ToString(true)).DefaultValue(ToString(false)).StoreResult(&cfg.UnsafeLWTrace); 
+            opts.AddHelpOption('h'); 
+            TOptsParseResult res(&opts, argc, argv); 
+ 
+            TVector<TString> tests = res.GetFreeArgs(); 
+            if (tests.empty()) { 
+#define FOR_EACH_TEST_MACRO(t) tests.push_back(#t); 
+                FOR_EACH_TEST() 
+#undef FOR_EACH_TEST_MACRO 
+            } 
+            for (size_t i = 0; i < tests.size(); i++) { 
+                const TString& test = tests[i]; 
+#define FOR_EACH_TEST_MACRO(t) \ 
+    if (test == #t) {          \ 
+        Cout << #t ": \t";     \ 
+        t(cfg);                \ 
+    } 
+                FOR_EACH_TEST() 
+#undef FOR_EACH_TEST_MACRO 
+            } 
+ 
+            if (TCheck::ObjCount != 0) { 
+                Cout << ">>>>> THERE IS AN OBJECT LEAK <<<<<" << Endl; 
+                Cout << "NLWTrace::TCheck::ObjCount = " << TCheck::ObjCount << Endl; 
+            } 
+ 
+            Cout << "Done" << Endl; 
+            return 0; 
+        } 
+ 
+    } 
+ 
+} 
+ 
+template <> 
 void Out<NLWTrace::NTests::TMeasure>(IOutputStream& os, TTypeTraits<NLWTrace::NTests::TMeasure>::TFuncParam measure) {
-    os << Sprintf("\n\t\t%.6lf +- %.6lf us,\tRPS: %30.3lf (%.1fM)", measure.Average, measure.Sigma, 1000000.0 / measure.Average, 1.0 / measure.Average);
-}
-
-int main(int argc, char** argv) {
-    try {
-        return NLWTrace::NTests::Main(argc, argv);
-    } catch (std::exception& e) {
-        Cerr << e.what() << Endl;
-        return 1;
-    } catch (...) {
-        Cerr << "Unknown error" << Endl;
-        return 1;
-    }
-}
+    os << Sprintf("\n\t\t%.6lf +- %.6lf us,\tRPS: %30.3lf (%.1fM)", measure.Average, measure.Sigma, 1000000.0 / measure.Average, 1.0 / measure.Average); 
+} 
+ 
+int main(int argc, char** argv) { 
+    try { 
+        return NLWTrace::NTests::Main(argc, argv); 
+    } catch (std::exception& e) { 
+        Cerr << e.what() << Endl; 
+        return 1; 
+    } catch (...) { 
+        Cerr << "Unknown error" << Endl; 
+        return 1; 
+    } 
+} 
diff --git a/library/cpp/lwtrace/tests/ya.make b/library/cpp/lwtrace/tests/ya.make
index 6225ab1fa0..072cbba5d4 100644
--- a/library/cpp/lwtrace/tests/ya.make
+++ b/library/cpp/lwtrace/tests/ya.make
@@ -1,15 +1,15 @@
 OWNER(serxa)
 
-PROGRAM()
-
-SRCS(
-    trace_tests.cpp
-)
-
-PEERDIR(
+PROGRAM() 
+ 
+SRCS( 
+    trace_tests.cpp 
+) 
+ 
+PEERDIR( 
     contrib/libs/protobuf
     library/cpp/getopt
     library/cpp/lwtrace
-)
-
-END()
+) 
+ 
+END() 
diff --git a/library/cpp/lwtrace/trace.cpp b/library/cpp/lwtrace/trace.cpp
index 3c974c85a0..c4d30b1796 100644
--- a/library/cpp/lwtrace/trace.cpp
+++ b/library/cpp/lwtrace/trace.cpp
@@ -6,812 +6,812 @@
 #include "stderr_writer.h"
 #include "google/protobuf/repeated_field.h"
 
-#include <util/generic/map.h>
-#include <util/random/random.h>
-
+#include <util/generic/map.h> 
+#include <util/random/random.h> 
+ 
 #include <functional>
 
-namespace NLWTrace {
-#ifndef LWTRACE_DISABLE
-
-// Define static strings for name of each parameter type
-#define FOREACH_PARAMTYPE_MACRO(n, t, v)       \
-    const char* TParamType<t>::NameString = n; \
-    /**/
-    FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO)
-    FOR_NIL_PARAMTYPE(FOREACH_PARAMTYPE_MACRO)
-#undef FOREACH_PARAMTYPE_MACRO
-
-#endif
-
-    void TProbeRegistry::AddProbesList(TProbe** reg) {
-        TGuard<TMutex> g(Mutex);
-        if (reg == nullptr) {
-            return;
-        }
-        for (TProbe** i = reg; *i != nullptr; i++) {
-            AddProbeNoLock(new TStaticBox(*i));
-        }
-    }
-
-    void TProbeRegistry::AddProbe(const TBoxPtr& box) {
-        TGuard<TMutex> g(Mutex);
-        AddProbeNoLock(box);
-    }
-
-    void TProbeRegistry::RemoveProbe(TProbe* probe) {
-        TGuard<TMutex> g(Mutex);
-        RemoveProbeNoLock(probe);
-    }
-
-    void TProbeRegistry::AddProbeNoLock(const TBoxPtr& box) {
-        TProbe* probe = box->GetProbe();
+namespace NLWTrace { 
+#ifndef LWTRACE_DISABLE 
+ 
+// Define static strings for name of each parameter type 
+#define FOREACH_PARAMTYPE_MACRO(n, t, v)       \ 
+    const char* TParamType<t>::NameString = n; \ 
+    /**/ 
+    FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO) 
+    FOR_NIL_PARAMTYPE(FOREACH_PARAMTYPE_MACRO) 
+#undef FOREACH_PARAMTYPE_MACRO 
+ 
+#endif 
+ 
+    void TProbeRegistry::AddProbesList(TProbe** reg) { 
+        TGuard<TMutex> g(Mutex); 
+        if (reg == nullptr) { 
+            return; 
+        } 
+        for (TProbe** i = reg; *i != nullptr; i++) { 
+            AddProbeNoLock(new TStaticBox(*i)); 
+        } 
+    } 
+ 
+    void TProbeRegistry::AddProbe(const TBoxPtr& box) { 
+        TGuard<TMutex> g(Mutex); 
+        AddProbeNoLock(box); 
+    } 
+ 
+    void TProbeRegistry::RemoveProbe(TProbe* probe) { 
+        TGuard<TMutex> g(Mutex); 
+        RemoveProbeNoLock(probe); 
+    } 
+ 
+    void TProbeRegistry::AddProbeNoLock(const TBoxPtr& box) { 
+        TProbe* probe = box->GetProbe(); 
         if (Probes.contains(probe)) {
-            return; // silently skip probe double registration
-        }
-        TIds::key_type key(probe->Event.GetProvider(), probe->Event.Name);
+            return; // silently skip probe double registration 
+        } 
+        TIds::key_type key(probe->Event.GetProvider(), probe->Event.Name); 
         Y_VERIFY(Ids.count(key) == 0, "duplicate provider:probe pair %s:%s", key.first.data(), key.second.data());
-        Probes.emplace(probe, box);
-        Ids.insert(key);
-    }
-
-    void TProbeRegistry::RemoveProbeNoLock(TProbe* probe) {
-        auto iter = Probes.find(probe);
-        if (iter != Probes.end()) {
-            TIds::key_type key(probe->Event.GetProvider(), probe->Event.Name);
-            Ids.erase(key);
-            Probes.erase(iter);
-        } else {
-            // silently skip probe double unregistration
-        }
-    }
-
-    TAtomic* GetVariablePtr(TSession::TTraceVariables& traceVariables, const TString& name) {
-        TSession::TTraceVariables::iterator it = traceVariables.find(name);
-        if (it == traceVariables.end()) {
-            TAtomicBase zero = 0;
-            traceVariables[name] = zero;
-            return &traceVariables[name];
-        }
-        return &((*it).second);
-    }
-
-    typedef enum {
-        OT_LITERAL = 0,
-        OT_PARAMETER = 1,
-        OT_VARIABLE = 2
-    } EOperandType;
-
-    template <class T, EOperandType>
-    class TOperand;
-
-    template <class T>
-    class TOperand<T, OT_LITERAL> {
-    private:
-        T ImmediateValue;
-
-    public:
-        TOperand(TSession::TTraceVariables&, const TString&, const TString& value, size_t) {
-            ImmediateValue = TParamConv<T>::FromString(value);
-        }
-        const T& Get(const TParams&) {
-            return ImmediateValue;
-        }
-    };
-
-    template <class T>
-    class TOperand<T, OT_PARAMETER> {
-    private:
-        size_t Idx;
-
-    public:
-        TOperand(TSession::TTraceVariables&, const TString&, const TString&, size_t idx) {
-            Idx = idx;
-        }
-
-        const T& Get(const TParams& params) {
-            return params.Param[Idx].template Get<T>();
-        }
-    };
-
-    template <class T>
-    class TOperand<T, OT_VARIABLE> {
-    private:
-        TAtomic* Variable;
-
-    public:
-        TOperand(TSession::TTraceVariables& traceVariables, const TString& name, const TString&, size_t) {
-            Variable = GetVariablePtr(traceVariables, name);
-        }
-
-        const T Get(const TParams&) {
-            return (T)AtomicGet(*Variable);
-        }
-
-        void Set(const T& value) {
-            AtomicSet(*Variable, value);
-        }
-
-        void Inc() {
-            AtomicIncrement(*Variable);
-        }
-
-        void Dec() {
-            AtomicDecrement(*Variable);
-        }
-
-        void Add(const TAtomicBase value) {
-            AtomicAdd(*Variable, value);
-        }
-
-        void Sub(const TAtomicBase value) {
-            AtomicSub(*Variable, value);
-        }
-    };
-
-    template <>
-    class TOperand<TCheck, OT_VARIABLE> {
-    private:
-        TAtomic* Variable;
-
-    public:
-        TOperand(TSession::TTraceVariables& traceVariables, const TString& name, const TString&, size_t) {
-            Variable = GetVariablePtr(traceVariables, name);
-        }
-
-        const TCheck Get(const TParams&) {
-            return TCheck(AtomicGet(*Variable));
-        }
-
-        void Set(const TCheck& value) {
-            AtomicSet(*Variable, value.Value);
-        }
-
-        void Add(const TCheck& value) {
-            AtomicAdd(*Variable, value.Value);
-        }
-
-        void Sub(const TCheck value) {
-            AtomicSub(*Variable, value.Value);
-        }
-
-        void Inc() {
-            AtomicIncrement(*Variable);
-        }
-
-        void Dec() {
-            AtomicDecrement(*Variable);
-        }
-    };
-
-    template <>
-    class TOperand<TString, OT_VARIABLE> {
-    private:
-        TString Dummy;
-
-    public:
-        TOperand(TSession::TTraceVariables&, const TString&, const TString&, size_t) {
-        }
-
-        const TString Get(const TParams&) {
-            return Dummy;
-        }
-
-        void Set(const TString&) {
-        }
-    };
-
-    template <>
-    class TOperand<TSymbol, OT_VARIABLE> {
-    private:
-        TSymbol Dummy;
-
-    public:
-        TOperand(TSession::TTraceVariables&, const TString&, const TString&, size_t) {
-        }
-
-        const TSymbol Get(const TParams&) {
-            return Dummy;
-        }
-
-        void Set(const TSymbol&) {
-        }
-    };
-
-    // IOperandGetter: hide concrete EOperandType, to save compilation time
-    template <class T>
-    struct IOperandGetter {
-        virtual const T Get(const TParams& params) = 0;
-        virtual ~IOperandGetter() {
-        }
-    };
-
-    template <class T, EOperandType TParam>
-    class TOperandGetter: public IOperandGetter<T> {
-    private:
-        TOperand<T, TParam> Op;
-
-    public:
-        TOperandGetter(const TOperand<T, TParam>& op)
-            : Op(op)
-        {
-        }
-
-        const T Get(const TParams& params) override {
-            return Op.Get(params);
-        }
-    };
-
-    template <class T>
-    class TReceiver: public TOperand<T, OT_VARIABLE> {
-    public:
-        TReceiver(TSession::TTraceVariables& traceVariables, const TString& name)
-            : TOperand<T, OT_VARIABLE>(traceVariables, name, nullptr, 0)
-        {
-        }
-    };
-
-    template <class TP, class TPredicate>
-    static bool CmpFunc(TP a, TP b) {
-        return TPredicate()(a, b);
+        Probes.emplace(probe, box); 
+        Ids.insert(key); 
+    } 
+ 
+    void TProbeRegistry::RemoveProbeNoLock(TProbe* probe) { 
+        auto iter = Probes.find(probe); 
+        if (iter != Probes.end()) { 
+            TIds::key_type key(probe->Event.GetProvider(), probe->Event.Name); 
+            Ids.erase(key); 
+            Probes.erase(iter); 
+        } else { 
+            // silently skip probe double unregistration 
+        } 
+    } 
+ 
+    TAtomic* GetVariablePtr(TSession::TTraceVariables& traceVariables, const TString& name) { 
+        TSession::TTraceVariables::iterator it = traceVariables.find(name); 
+        if (it == traceVariables.end()) { 
+            TAtomicBase zero = 0; 
+            traceVariables[name] = zero; 
+            return &traceVariables[name]; 
+        } 
+        return &((*it).second); 
     }
 
-    template <class TP, class TFunc, EOperandType TLhs, EOperandType TRhs>
-    class TOperatorExecutor: public IExecutor {
-    private:
-        bool InvertCompare;
-        TOperand<TP, TLhs> Lhs;
-        TOperand<TP, TRhs> Rhs;
-
-        bool DoExecute(TOrbit&, const TParams& params) override {
-            return TFunc()(Lhs.Get(params), Rhs.Get(params)) != InvertCompare;
-        }
-
-    public:
-        TOperatorExecutor(const TOperand<TP, TLhs>& lhs, const TOperand<TP, TRhs>& rhs, bool invertCompare)
-            : InvertCompare(invertCompare)
-            , Lhs(lhs)
-            , Rhs(rhs)
-        {
-        }
-    };
-
-    template <class TR, class TP>
-    struct TAddEq {
-        void operator()(TR& x, TP y) const {
-            x.Add(y);
-        }
-    };
-    template <class TR, class TP>
-    struct TSubEq {
-        void operator()(TR& x, TP y) const {
-            x.Sub(y);
-        }
-    };
-    template <class TR>
-    struct TInc {
-        void operator()(TR& x) const {
-            x.Inc();
-        }
-    };
-    template <class TR>
-    struct TDec {
-        void operator()(TR& x) const {
-            x.Dec();
-        }
-    };
-
-    template <class TP, class TFunc>
-    class TUnaryInplaceStatementExecutor: public IExecutor {
-    private:
-        TFunc Func;
-        TReceiver<TP> Receiver;
-
-        bool DoExecute(TOrbit&, const TParams&) override {
-            Func(Receiver);
-            return true;
-        }
-
-    public:
-        TUnaryInplaceStatementExecutor(TReceiver<TP>& receiver)
-            : Receiver(receiver)
-        {
-        }
-    };
-
-    template <class TP, class TFunc, EOperandType TParam>
-    class TBinaryInplaceStatementExecutor: public IExecutor {
-    private:
-        TFunc Func;
-        TReceiver<TP> Receiver;
-        TOperand<TP, TParam> Param;
-
-        bool DoExecute(TOrbit&, const TParams& params) override {
-            Func(Receiver, Param.Get(params));
-            return true;
-        }
-
-    public:
-        TBinaryInplaceStatementExecutor(TReceiver<TP>& receiver, const TOperand<TP, TParam>& param)
-            : Receiver(receiver)
-            , Param(param)
-        {
-        }
-    };
-
-    template <class TP, class TFunc, EOperandType TFirstParam>
-    class TBinaryStatementExecutor: public IExecutor {
-    private:
-        TFunc Func;
-        TReceiver<TP> Receiver;
-        TOperand<TP, TFirstParam> FirstParam;
-
-        bool DoExecute(TOrbit&, const TParams& params) override {
-            Receiver.Set(Func(Receiver.Get(params), FirstParam.Get(params)));
-            return true;
-        }
-
-    public:
-        TBinaryStatementExecutor(TReceiver<TP>& receiver, const TOperand<TP, TFirstParam>& firstParam)
-            : Receiver(receiver)
-            , FirstParam(firstParam)
-        {
-        }
-    };
-
-    template <class TP, class TFunc>
-    class TTernaryStatementExecutor: public IExecutor {
-    private:
-        TFunc Func;
-        TReceiver<TP> Receiver;
-
-        TAutoPtr<IOperandGetter<TP>> FirstParam;
-        TAutoPtr<IOperandGetter<TP>> SecondParam;
-
-        bool DoExecute(TOrbit&, const TParams& params) override {
-            Receiver.Set(Func(FirstParam->Get(params), SecondParam->Get(params)));
-            return true;
-        }
-
-    public:
-        TTernaryStatementExecutor(const TReceiver<TP>& receiver,
-                                  TAutoPtr<IOperandGetter<TP>> firstParam,
-                                  TAutoPtr<IOperandGetter<TP>> secondParam)
-            : Receiver(receiver)
-            , FirstParam(firstParam)
-            , SecondParam(secondParam)
-        {
-        }
-    };
-
-    template <class TLog>
-    class TLogActionExecutor: public IExecutor {
-    private:
-        bool LogParams;
-        bool LogTimestamp;
-        intptr_t* MaxRecords;
-        TAtomic Records;
-        TProbe* Probe;
-        TLog* Log;
-
-        bool DoExecute(TOrbit&, const TParams& params) override {
-            if (MaxRecords != nullptr) {
-                while (true) {
-                    intptr_t a = AtomicGet(Records);
-                    if (a >= *MaxRecords) {
-                        return true;
-                    }
-                    if (AtomicCas(&Records, a + 1, a)) {
-                        Write(params);
-                        return true;
-                    }
-                }
-            } else {
-                Write(params);
-                return true;
-            }
-        }
-
-        void Write(const TParams& params) {
-            typename TLog::TAccessor la(*Log);
-            if (typename TLog::TItem* item = la.Add()) {
-                item->Probe = Probe;
-                if (LogParams) {
-                    if ((item->SavedParamsCount = Probe->Event.Signature.ParamCount) > 0) {
-                        Probe->Event.Signature.CloneParams(item->Params, params);
-                    }
-                } else {
-                    item->SavedParamsCount = 0;
-                }
-                if (LogTimestamp) {
-                    item->Timestamp = TInstant::Now();
-                }
-                item->TimestampCycles = GetCycleCount();
-            }
-        }
-
-    public:
-        TLogActionExecutor(TProbe* probe, const TLogAction& action, TLog* log)
+    typedef enum { 
+        OT_LITERAL = 0, 
+        OT_PARAMETER = 1, 
+        OT_VARIABLE = 2 
+    } EOperandType; 
+
+    template <class T, EOperandType> 
+    class TOperand; 
+
+    template <class T> 
+    class TOperand<T, OT_LITERAL> { 
+    private: 
+        T ImmediateValue; 
+ 
+    public: 
+        TOperand(TSession::TTraceVariables&, const TString&, const TString& value, size_t) { 
+            ImmediateValue = TParamConv<T>::FromString(value); 
+        } 
+        const T& Get(const TParams&) { 
+            return ImmediateValue; 
+        } 
+    }; 
+ 
+    template <class T> 
+    class TOperand<T, OT_PARAMETER> { 
+    private: 
+        size_t Idx; 
+ 
+    public: 
+        TOperand(TSession::TTraceVariables&, const TString&, const TString&, size_t idx) { 
+            Idx = idx; 
+        } 
+ 
+        const T& Get(const TParams& params) { 
+            return params.Param[Idx].template Get<T>(); 
+        } 
+    }; 
+ 
+    template <class T> 
+    class TOperand<T, OT_VARIABLE> { 
+    private: 
+        TAtomic* Variable; 
+ 
+    public: 
+        TOperand(TSession::TTraceVariables& traceVariables, const TString& name, const TString&, size_t) { 
+            Variable = GetVariablePtr(traceVariables, name); 
+        } 
+ 
+        const T Get(const TParams&) { 
+            return (T)AtomicGet(*Variable); 
+        } 
+ 
+        void Set(const T& value) { 
+            AtomicSet(*Variable, value); 
+        } 
+ 
+        void Inc() { 
+            AtomicIncrement(*Variable); 
+        } 
+
+        void Dec() { 
+            AtomicDecrement(*Variable); 
+        } 
+ 
+        void Add(const TAtomicBase value) { 
+            AtomicAdd(*Variable, value); 
+        } 
+ 
+        void Sub(const TAtomicBase value) { 
+            AtomicSub(*Variable, value); 
+        } 
+    }; 
+ 
+    template <> 
+    class TOperand<TCheck, OT_VARIABLE> { 
+    private: 
+        TAtomic* Variable; 
+ 
+    public: 
+        TOperand(TSession::TTraceVariables& traceVariables, const TString& name, const TString&, size_t) { 
+            Variable = GetVariablePtr(traceVariables, name); 
+        } 
+ 
+        const TCheck Get(const TParams&) { 
+            return TCheck(AtomicGet(*Variable)); 
+        } 
+ 
+        void Set(const TCheck& value) { 
+            AtomicSet(*Variable, value.Value); 
+        } 
+
+        void Add(const TCheck& value) { 
+            AtomicAdd(*Variable, value.Value); 
+        } 
+ 
+        void Sub(const TCheck value) { 
+            AtomicSub(*Variable, value.Value); 
+        } 
+ 
+        void Inc() { 
+            AtomicIncrement(*Variable); 
+        } 
+
+        void Dec() { 
+            AtomicDecrement(*Variable); 
+        } 
+    }; 
+ 
+    template <> 
+    class TOperand<TString, OT_VARIABLE> { 
+    private: 
+        TString Dummy; 
+ 
+    public: 
+        TOperand(TSession::TTraceVariables&, const TString&, const TString&, size_t) { 
+        } 
+ 
+        const TString Get(const TParams&) { 
+            return Dummy; 
+        } 
+
+        void Set(const TString&) { 
+        } 
+    }; 
+
+    template <> 
+    class TOperand<TSymbol, OT_VARIABLE> { 
+    private: 
+        TSymbol Dummy; 
+
+    public: 
+        TOperand(TSession::TTraceVariables&, const TString&, const TString&, size_t) { 
+        } 
+
+        const TSymbol Get(const TParams&) { 
+            return Dummy; 
+        } 
+
+        void Set(const TSymbol&) { 
+        } 
+    }; 
+
+    // IOperandGetter: hide concrete EOperandType, to save compilation time 
+    template <class T> 
+    struct IOperandGetter { 
+        virtual const T Get(const TParams& params) = 0; 
+        virtual ~IOperandGetter() { 
+        } 
+    }; 
+
+    template <class T, EOperandType TParam> 
+    class TOperandGetter: public IOperandGetter<T> { 
+    private: 
+        TOperand<T, TParam> Op; 
+
+    public: 
+        TOperandGetter(const TOperand<T, TParam>& op) 
+            : Op(op) 
+        { 
+        } 
+
+        const T Get(const TParams& params) override { 
+            return Op.Get(params); 
+        } 
+    }; 
+
+    template <class T> 
+    class TReceiver: public TOperand<T, OT_VARIABLE> { 
+    public: 
+        TReceiver(TSession::TTraceVariables& traceVariables, const TString& name) 
+            : TOperand<T, OT_VARIABLE>(traceVariables, name, nullptr, 0) 
+        { 
+        } 
+    }; 
+
+    template <class TP, class TPredicate> 
+    static bool CmpFunc(TP a, TP b) { 
+        return TPredicate()(a, b); 
+    } 
+ 
+    template <class TP, class TFunc, EOperandType TLhs, EOperandType TRhs> 
+    class TOperatorExecutor: public IExecutor { 
+    private: 
+        bool InvertCompare; 
+        TOperand<TP, TLhs> Lhs; 
+        TOperand<TP, TRhs> Rhs; 
+ 
+        bool DoExecute(TOrbit&, const TParams& params) override { 
+            return TFunc()(Lhs.Get(params), Rhs.Get(params)) != InvertCompare; 
+        } 
+ 
+    public: 
+        TOperatorExecutor(const TOperand<TP, TLhs>& lhs, const TOperand<TP, TRhs>& rhs, bool invertCompare) 
+            : InvertCompare(invertCompare) 
+            , Lhs(lhs) 
+            , Rhs(rhs) 
+        { 
+        } 
+    }; 
+ 
+    template <class TR, class TP> 
+    struct TAddEq { 
+        void operator()(TR& x, TP y) const { 
+            x.Add(y); 
+        } 
+    }; 
+    template <class TR, class TP> 
+    struct TSubEq { 
+        void operator()(TR& x, TP y) const { 
+            x.Sub(y); 
+        } 
+    }; 
+    template <class TR> 
+    struct TInc { 
+        void operator()(TR& x) const { 
+            x.Inc(); 
+        } 
+    }; 
+    template <class TR> 
+    struct TDec { 
+        void operator()(TR& x) const { 
+            x.Dec(); 
+        } 
+    }; 
+ 
+    template <class TP, class TFunc> 
+    class TUnaryInplaceStatementExecutor: public IExecutor { 
+    private: 
+        TFunc Func; 
+        TReceiver<TP> Receiver; 
+
+        bool DoExecute(TOrbit&, const TParams&) override { 
+            Func(Receiver); 
+            return true; 
+        } 
+
+    public: 
+        TUnaryInplaceStatementExecutor(TReceiver<TP>& receiver) 
+            : Receiver(receiver) 
+        { 
+        } 
+    }; 
+
+    template <class TP, class TFunc, EOperandType TParam> 
+    class TBinaryInplaceStatementExecutor: public IExecutor { 
+    private: 
+        TFunc Func; 
+        TReceiver<TP> Receiver; 
+        TOperand<TP, TParam> Param; 
+
+        bool DoExecute(TOrbit&, const TParams& params) override { 
+            Func(Receiver, Param.Get(params)); 
+            return true; 
+        } 
+
+    public: 
+        TBinaryInplaceStatementExecutor(TReceiver<TP>& receiver, const TOperand<TP, TParam>& param) 
+            : Receiver(receiver) 
+            , Param(param) 
+        { 
+        } 
+    }; 
+
+    template <class TP, class TFunc, EOperandType TFirstParam> 
+    class TBinaryStatementExecutor: public IExecutor { 
+    private: 
+        TFunc Func; 
+        TReceiver<TP> Receiver; 
+        TOperand<TP, TFirstParam> FirstParam; 
+
+        bool DoExecute(TOrbit&, const TParams& params) override { 
+            Receiver.Set(Func(Receiver.Get(params), FirstParam.Get(params))); 
+            return true; 
+        } 
+ 
+    public: 
+        TBinaryStatementExecutor(TReceiver<TP>& receiver, const TOperand<TP, TFirstParam>& firstParam) 
+            : Receiver(receiver) 
+            , FirstParam(firstParam) 
+        { 
+        } 
+    }; 
+ 
+    template <class TP, class TFunc> 
+    class TTernaryStatementExecutor: public IExecutor { 
+    private: 
+        TFunc Func; 
+        TReceiver<TP> Receiver; 
+ 
+        TAutoPtr<IOperandGetter<TP>> FirstParam; 
+        TAutoPtr<IOperandGetter<TP>> SecondParam; 
+ 
+        bool DoExecute(TOrbit&, const TParams& params) override { 
+            Receiver.Set(Func(FirstParam->Get(params), SecondParam->Get(params))); 
+            return true; 
+        } 
+ 
+    public: 
+        TTernaryStatementExecutor(const TReceiver<TP>& receiver, 
+                                  TAutoPtr<IOperandGetter<TP>> firstParam, 
+                                  TAutoPtr<IOperandGetter<TP>> secondParam) 
+            : Receiver(receiver) 
+            , FirstParam(firstParam) 
+            , SecondParam(secondParam) 
+        { 
+        } 
+    }; 
+ 
+    template <class TLog> 
+    class TLogActionExecutor: public IExecutor { 
+    private: 
+        bool LogParams; 
+        bool LogTimestamp; 
+        intptr_t* MaxRecords; 
+        TAtomic Records; 
+        TProbe* Probe; 
+        TLog* Log; 
+ 
+        bool DoExecute(TOrbit&, const TParams& params) override { 
+            if (MaxRecords != nullptr) { 
+                while (true) { 
+                    intptr_t a = AtomicGet(Records); 
+                    if (a >= *MaxRecords) { 
+                        return true; 
+                    } 
+                    if (AtomicCas(&Records, a + 1, a)) { 
+                        Write(params); 
+                        return true; 
+                    } 
+                } 
+            } else { 
+                Write(params); 
+                return true; 
+            } 
+        } 
+ 
+        void Write(const TParams& params) { 
+            typename TLog::TAccessor la(*Log); 
+            if (typename TLog::TItem* item = la.Add()) { 
+                item->Probe = Probe; 
+                if (LogParams) { 
+                    if ((item->SavedParamsCount = Probe->Event.Signature.ParamCount) > 0) { 
+                        Probe->Event.Signature.CloneParams(item->Params, params); 
+                    } 
+                } else { 
+                    item->SavedParamsCount = 0; 
+                } 
+                if (LogTimestamp) { 
+                    item->Timestamp = TInstant::Now(); 
+                } 
+                item->TimestampCycles = GetCycleCount(); 
+            } 
+        } 
+ 
+    public: 
+        TLogActionExecutor(TProbe* probe, const TLogAction& action, TLog* log) 
             : LogParams(!action.GetDoNotLogParams())
-            , LogTimestamp(action.GetLogTimestamp())
+            , LogTimestamp(action.GetLogTimestamp()) 
             , MaxRecords(action.GetMaxRecords() ? new intptr_t(action.GetMaxRecords()) : nullptr)
-            , Records(0)
-            , Probe(probe)
-            , Log(log)
-        {
-        }
-
-        ~TLogActionExecutor() override {
-            delete MaxRecords;
-        }
-    };
-
-    class TSamplingExecutor: public IExecutor {
-    private:
-        double SampleRate;
-
-    public:
-        explicit TSamplingExecutor(double sampleRate)
-            : SampleRate(sampleRate)
-        {}
-
-        bool DoExecute(TOrbit&, const TParams&) override {
-            return RandomNumber<double>() < SampleRate;
-        }
-    };
-
-    typedef struct {
-        EOperandType Type;
-        size_t ParamIdx;
-    } TArgumentDescription;
-
-    using TArgumentList = TVector<TArgumentDescription>;
-
-    template <class T>
-    void ParseArguments(const T& op, const TSignature& signature, const TString& exceptionPrefix, size_t expectedArgumentCount, TArgumentList& arguments) {
-        arguments.clear();
-        size_t firstParamIdx = size_t(-1);
-        for (size_t argumentIdx = 0; argumentIdx < op.ArgumentSize(); ++argumentIdx) {
-            const TArgument& arg = op.GetArgument(argumentIdx);
-            TArgumentDescription operand;
-            operand.ParamIdx = size_t(-1);
+            , Records(0) 
+            , Probe(probe) 
+            , Log(log) 
+        { 
+        } 
+ 
+        ~TLogActionExecutor() override { 
+            delete MaxRecords; 
+        } 
+    }; 
+ 
+    class TSamplingExecutor: public IExecutor { 
+    private: 
+        double SampleRate; 
+ 
+    public: 
+        explicit TSamplingExecutor(double sampleRate) 
+            : SampleRate(sampleRate) 
+        {} 
+ 
+        bool DoExecute(TOrbit&, const TParams&) override { 
+            return RandomNumber<double>() < SampleRate; 
+        } 
+    }; 
+ 
+    typedef struct { 
+        EOperandType Type; 
+        size_t ParamIdx; 
+    } TArgumentDescription; 
+
+    using TArgumentList = TVector<TArgumentDescription>; 
+
+    template <class T> 
+    void ParseArguments(const T& op, const TSignature& signature, const TString& exceptionPrefix, size_t expectedArgumentCount, TArgumentList& arguments) { 
+        arguments.clear(); 
+        size_t firstParamIdx = size_t(-1); 
+        for (size_t argumentIdx = 0; argumentIdx < op.ArgumentSize(); ++argumentIdx) { 
+            const TArgument& arg = op.GetArgument(argumentIdx); 
+            TArgumentDescription operand; 
+            operand.ParamIdx = size_t(-1); 
             if (arg.GetVariable()) {
-                operand.Type = OT_VARIABLE;
+                operand.Type = OT_VARIABLE; 
             } else if (arg.GetValue()) {
-                operand.Type = OT_LITERAL;
+                operand.Type = OT_LITERAL; 
             } else if (arg.GetParam()) {
-                operand.Type = OT_PARAMETER;
-                operand.ParamIdx = signature.FindParamIndex(arg.GetParam());
-                if (operand.ParamIdx == size_t(-1)) {
+                operand.Type = OT_PARAMETER; 
+                operand.ParamIdx = signature.FindParamIndex(arg.GetParam()); 
+                if (operand.ParamIdx == size_t(-1)) { 
                     ythrow yexception() << exceptionPrefix
-                                        << " argument #" << argumentIdx << " param '" << arg.GetParam()
-                                        << "' doesn't exist";
+                                        << " argument #" << argumentIdx << " param '" << arg.GetParam() 
+                                        << "' doesn't exist"; 
                 }
-                if (firstParamIdx == size_t(-1)) {
-                    firstParamIdx = operand.ParamIdx;
-                } else {
-                    if (strcmp(signature.ParamTypes[firstParamIdx], signature.ParamTypes[operand.ParamIdx]) != 0) {
-                        ythrow yexception() << exceptionPrefix
-                                            << " param types do not match";
-                    }
-                }
-            } else {
-                ythrow yexception() << exceptionPrefix
-                                    << " argument #" << argumentIdx
-                                    << " is empty";
+                if (firstParamIdx == size_t(-1)) { 
+                    firstParamIdx = operand.ParamIdx; 
+                } else { 
+                    if (strcmp(signature.ParamTypes[firstParamIdx], signature.ParamTypes[operand.ParamIdx]) != 0) { 
+                        ythrow yexception() << exceptionPrefix 
+                                            << " param types do not match"; 
+                    } 
+                } 
+            } else { 
+                ythrow yexception() << exceptionPrefix 
+                                    << " argument #" << argumentIdx 
+                                    << " is empty"; 
             }
-            arguments.push_back(operand);
-        }
-        if (arguments.size() != expectedArgumentCount) {
+            arguments.push_back(operand); 
+        } 
+        if (arguments.size() != expectedArgumentCount) { 
             ythrow yexception() << exceptionPrefix
-                                << " incorrect number of arguments (" << arguments.size()
-                                << " present, " << expectedArgumentCount << " expected)";
-        }
-    }
-
-    template <class TArg1, class TArg2>
-    struct TTraceSecondArg {
-        // implementation of deprecated std::project2nd
-        TArg1 operator()(const TArg1&, const TArg2& y) const {
-            return y;
-        }
-    };
-
-    void TSession::InsertExecutor(
-        TTraceVariables& traceVariables, size_t bi, const TPredicate* pred,
-        const NProtoBuf::RepeatedPtrField<TAction>& actions, TProbe* probe,
-        const bool destructiveActionsAllowed,
-        const TCustomActionFactory& customActionFactory) {
-#ifndef LWTRACE_DISABLE
-        THolder<IExecutor> exec;
-        IExecutor* last = nullptr;
-        TArgumentList arguments;
-        if (pred) {
-            double sampleRate = pred->GetSampleRate();
-            if (sampleRate != 0.0) {
-                if (!(0.0 < sampleRate && sampleRate <= 1.0)) {
-                    ythrow yexception() << "probe '" << probe->Event.Name << "' block #" << bi + 1 << " sampling operator"
-                                        << " invalid sample rate " << sampleRate << ", expected [0;1]";
-                }
-                exec.Reset(new TSamplingExecutor(sampleRate));
-                last = exec.Get();
-            }
-
-            for (size_t i = 0; i < pred->OperatorsSize(); i++) {
-                const TOperator& op = pred->GetOperators(i);
-                TString exceptionPrefix;
-                TStringOutput exceptionPrefixOutput(exceptionPrefix);
-                exceptionPrefixOutput << "probe '" << probe->Event.Name << "' block #" << bi + 1 << " operator #" << i + 1;
-                ParseArguments<TOperator>(op, probe->Event.Signature, exceptionPrefix, 2, arguments);
-                THolder<IExecutor> opExec;
-
-                TArgumentDescription arg0 = arguments.at(0);
-                TArgumentDescription arg1 = arguments.at(1);
+                                << " incorrect number of arguments (" << arguments.size() 
+                                << " present, " << expectedArgumentCount << " expected)"; 
+        }
+    } 
+ 
+    template <class TArg1, class TArg2> 
+    struct TTraceSecondArg { 
+        // implementation of deprecated std::project2nd 
+        TArg1 operator()(const TArg1&, const TArg2& y) const { 
+            return y; 
+        } 
+    }; 
+
+    void TSession::InsertExecutor( 
+        TTraceVariables& traceVariables, size_t bi, const TPredicate* pred, 
+        const NProtoBuf::RepeatedPtrField<TAction>& actions, TProbe* probe, 
+        const bool destructiveActionsAllowed, 
+        const TCustomActionFactory& customActionFactory) { 
+#ifndef LWTRACE_DISABLE 
+        THolder<IExecutor> exec; 
+        IExecutor* last = nullptr; 
+        TArgumentList arguments; 
+        if (pred) { 
+            double sampleRate = pred->GetSampleRate(); 
+            if (sampleRate != 0.0) { 
+                if (!(0.0 < sampleRate && sampleRate <= 1.0)) { 
+                    ythrow yexception() << "probe '" << probe->Event.Name << "' block #" << bi + 1 << " sampling operator" 
+                                        << " invalid sample rate " << sampleRate << ", expected [0;1]"; 
+                } 
+                exec.Reset(new TSamplingExecutor(sampleRate)); 
+                last = exec.Get(); 
+            } 
+ 
+            for (size_t i = 0; i < pred->OperatorsSize(); i++) { 
+                const TOperator& op = pred->GetOperators(i); 
+                TString exceptionPrefix; 
+                TStringOutput exceptionPrefixOutput(exceptionPrefix); 
+                exceptionPrefixOutput << "probe '" << probe->Event.Name << "' block #" << bi + 1 << " operator #" << i + 1; 
+                ParseArguments<TOperator>(op, probe->Event.Signature, exceptionPrefix, 2, arguments); 
+                THolder<IExecutor> opExec; 
+ 
+                TArgumentDescription arg0 = arguments.at(0); 
+                TArgumentDescription arg1 = arguments.at(1); 
 
                 const char* tName0 = arg0.ParamIdx == size_t(-1) ? nullptr : probe->Event.Signature.ParamTypes[arg0.ParamIdx];
                 const char* tName1 = arg1.ParamIdx == size_t(-1) ? nullptr : probe->Event.Signature.ParamTypes[arg1.ParamIdx];
 
-                TString var0 = op.GetArgument(0).GetVariable();
-                TString var1 = op.GetArgument(1).GetVariable();
-
-                TString val0 = op.GetArgument(0).GetValue();
-                TString val1 = op.GetArgument(1).GetValue();
-
-#define FOREACH_OPERAND_TYPE_RT(n, t, v, fn, lt, rt)                                    \
-    if (rt == arg1.Type) {                                                              \
-        TOperand<t, rt> rhs(traceVariables, var1, val1, arg1.ParamIdx);                 \
-        opExec.Reset(new TOperatorExecutor<t, fn<t>, lt, rt>(lhs, rhs, invertCompare)); \
-        break;                                                                          \
-    }
-
-#define FOREACH_OPERAND_TYPE_LT(n, t, v, fn, lt)                        \
-    if (lt == arg0.Type) {                                              \
-        TOperand<t, lt> lhs(traceVariables, var0, val0, arg0.ParamIdx); \
-        FOREACH_RIGHT_TYPE(FOREACH_OPERAND_TYPE_RT, n, t, v, fn, lt)    \
-    }
-
-#define FOREACH_PARAMTYPE_MACRO(n, t, v, fn)                                                                                  \
-    if ((arg0.ParamIdx == size_t(-1) || strcmp(tName0, n) == 0) && (arg1.ParamIdx == size_t(-1) || strcmp(tName1, n) == 0)) { \
-        FOREACH_LEFT_TYPE(FOREACH_OPERAND_TYPE_LT, n, t, v, fn);                                                              \
-    }
-
-                bool invertCompare = EqualToOneOf(op.GetType(), OT_NE, OT_GE, OT_LE);
-
-                switch (op.GetType()) {
-                    case OT_EQ:
-                    case OT_NE:
-                        FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO, std::equal_to);
-                        break;
-                    case OT_LT:
-                    case OT_GE:
-                        FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO, std::less);
-                        break;
-                    case OT_GT:
-                    case OT_LE:
-                        FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO, std::greater);
-                        break;
-                    default:
-                        ythrow yexception() << exceptionPrefix
-                                            << " has not supported operator type #" << int(op.GetType());
-                }
-
+                TString var0 = op.GetArgument(0).GetVariable(); 
+                TString var1 = op.GetArgument(1).GetVariable(); 
+
+                TString val0 = op.GetArgument(0).GetValue(); 
+                TString val1 = op.GetArgument(1).GetValue(); 
+
+#define FOREACH_OPERAND_TYPE_RT(n, t, v, fn, lt, rt)                                    \ 
+    if (rt == arg1.Type) {                                                              \ 
+        TOperand<t, rt> rhs(traceVariables, var1, val1, arg1.ParamIdx);                 \ 
+        opExec.Reset(new TOperatorExecutor<t, fn<t>, lt, rt>(lhs, rhs, invertCompare)); \ 
+        break;                                                                          \ 
+    } 
+ 
+#define FOREACH_OPERAND_TYPE_LT(n, t, v, fn, lt)                        \ 
+    if (lt == arg0.Type) {                                              \ 
+        TOperand<t, lt> lhs(traceVariables, var0, val0, arg0.ParamIdx); \ 
+        FOREACH_RIGHT_TYPE(FOREACH_OPERAND_TYPE_RT, n, t, v, fn, lt)    \ 
+    } 
+
+#define FOREACH_PARAMTYPE_MACRO(n, t, v, fn)                                                                                  \ 
+    if ((arg0.ParamIdx == size_t(-1) || strcmp(tName0, n) == 0) && (arg1.ParamIdx == size_t(-1) || strcmp(tName1, n) == 0)) { \ 
+        FOREACH_LEFT_TYPE(FOREACH_OPERAND_TYPE_LT, n, t, v, fn);                                                              \ 
+    } 
+
+                bool invertCompare = EqualToOneOf(op.GetType(), OT_NE, OT_GE, OT_LE); 
+
+                switch (op.GetType()) { 
+                    case OT_EQ: 
+                    case OT_NE: 
+                        FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO, std::equal_to); 
+                        break; 
+                    case OT_LT: 
+                    case OT_GE: 
+                        FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO, std::less); 
+                        break; 
+                    case OT_GT: 
+                    case OT_LE: 
+                        FOREACH_PARAMTYPE(FOREACH_PARAMTYPE_MACRO, std::greater); 
+                        break; 
+                    default: 
+                        ythrow yexception() << exceptionPrefix 
+                                            << " has not supported operator type #" << int(op.GetType()); 
+                } 
+ 
 #undef FOREACH_OPERAND_TYPE_RT
 #undef FOREACH_OPERAND_TYPE_LT
-#undef FOREACH_PARAMTYPE_MACRO
-
-                if (!opExec) {
-                    ythrow yexception() << exceptionPrefix
-                                        << " has not supported left param #" << arg0.ParamIdx + 1 << " type '"
-                                        << (arg0.ParamIdx != size_t(-1) ? probe->Event.Signature.ParamTypes[arg0.ParamIdx] : "?")
-                                        << "', or right param #" << arg0.ParamIdx + 1 << " type '"
-                                        << (arg1.ParamIdx != size_t(-1) ? probe->Event.Signature.ParamTypes[arg1.ParamIdx] : "?")
-                                        << "'";
-                }
-
-                if (!exec) {
-                    exec.Reset(opExec.Release());
-                    last = exec.Get();
-                } else {
-                    last->SetNext(opExec.Release());
-                    last = last->GetNext();
-                }
-            }
-        }
-
-        for (int i = 0; i < actions.size(); ++i) {
-            const TAction& action = actions.Get(i);
-            THolder<IExecutor> actExec;
-            if (action.HasPrintToStderrAction()) {
-                actExec.Reset(new TStderrActionExecutor(probe));
-            } else if (action.HasLogAction()) {
-                if (Query.GetLogDurationUs()) {
-                    actExec.Reset(new TLogActionExecutor<TDurationLog>(probe, action.GetLogAction(), &DurationLog));
-                } else {
-                    actExec.Reset(new TLogActionExecutor<TCyclicLog>(probe, action.GetLogAction(), &CyclicLog));
-                }
-            } else if (action.HasRunLogShuttleAction()) {
-                if (Query.GetLogDurationUs()) {
+#undef FOREACH_PARAMTYPE_MACRO 
+ 
+                if (!opExec) { 
+                    ythrow yexception() << exceptionPrefix 
+                                        << " has not supported left param #" << arg0.ParamIdx + 1 << " type '" 
+                                        << (arg0.ParamIdx != size_t(-1) ? probe->Event.Signature.ParamTypes[arg0.ParamIdx] : "?") 
+                                        << "', or right param #" << arg0.ParamIdx + 1 << " type '" 
+                                        << (arg1.ParamIdx != size_t(-1) ? probe->Event.Signature.ParamTypes[arg1.ParamIdx] : "?") 
+                                        << "'"; 
+                } 
+ 
+                if (!exec) { 
+                    exec.Reset(opExec.Release()); 
+                    last = exec.Get(); 
+                } else { 
+                    last->SetNext(opExec.Release()); 
+                    last = last->GetNext(); 
+                } 
+            } 
+        } 
+ 
+        for (int i = 0; i < actions.size(); ++i) { 
+            const TAction& action = actions.Get(i); 
+            THolder<IExecutor> actExec; 
+            if (action.HasPrintToStderrAction()) { 
+                actExec.Reset(new TStderrActionExecutor(probe)); 
+            } else if (action.HasLogAction()) { 
+                if (Query.GetLogDurationUs()) { 
+                    actExec.Reset(new TLogActionExecutor<TDurationLog>(probe, action.GetLogAction(), &DurationLog)); 
+                } else { 
+                    actExec.Reset(new TLogActionExecutor<TCyclicLog>(probe, action.GetLogAction(), &CyclicLog)); 
+                } 
+            } else if (action.HasRunLogShuttleAction()) { 
+                if (Query.GetLogDurationUs()) { 
                     actExec.Reset(new TRunLogShuttleActionExecutor<TDurationDepot>(TraceIdx, action.GetRunLogShuttleAction(), &DurationDepot, &LastTrackId, &LastSpanId));
-                } else {
+                } else { 
                     actExec.Reset(new TRunLogShuttleActionExecutor<TCyclicDepot>(TraceIdx, action.GetRunLogShuttleAction(), &CyclicDepot, &LastTrackId, &LastSpanId));
-                }
-            } else if (action.HasEditLogShuttleAction()) {
-                if (Query.GetLogDurationUs()) {
-                    actExec.Reset(new TEditLogShuttleActionExecutor<TDurationDepot>(TraceIdx, action.GetEditLogShuttleAction()));
-                } else {
-                    actExec.Reset(new TEditLogShuttleActionExecutor<TCyclicDepot>(TraceIdx, action.GetEditLogShuttleAction()));
-                }
-            } else if (action.HasDropLogShuttleAction()) {
-                if (Query.GetLogDurationUs()) {
-                    actExec.Reset(new TDropLogShuttleActionExecutor<TDurationDepot>(TraceIdx, action.GetDropLogShuttleAction()));
-                } else {
-                    actExec.Reset(new TDropLogShuttleActionExecutor<TCyclicDepot>(TraceIdx, action.GetDropLogShuttleAction()));
-                }
-            } else if (action.HasCustomAction()) {
-                THolder<TCustomActionExecutor> customExec(customActionFactory.Create(probe, action.GetCustomAction(), this));
-                if (customExec) {
-                    if (!customExec->IsDestructive() || destructiveActionsAllowed) {
-                        actExec.Reset(customExec.Release());
-                    } else {
-                        ythrow yexception() << "probe '" << probe->Event.Name << "block #" << bi + 1 << " action #" << i + 1
-                                            << " contains destructive CustomAction, but destructive actions are disabled."
-                                            << " Please, consider using --unsafe-lwtrace command line parameter.";
-                    }
-                } else {
-                    ythrow yexception() << "probe '" << probe->Event.Name << "block #" << bi + 1 << " action #" << i + 1
-                                        << " contains unregistered CustomAction '" << action.GetCustomAction().GetName() << "'";
-                }
-            } else if (action.HasKillAction()) {
-                if (destructiveActionsAllowed) {
-                    actExec.Reset(new NPrivate::TKillActionExecutor(probe));
-                } else {
-                    ythrow yexception() << "probe '" << probe->Event.Name << "block #" << bi + 1 << " action #" << i + 1
-                                        << " contains destructive KillAction, but destructive actions are disabled."
-                                        << " Please, consider using --unsafe-lwtrace command line parameter.";
-                }
-            } else if (action.HasSleepAction()) {
-                if (destructiveActionsAllowed) {
-                    const TSleepAction& sleepAction = action.GetSleepAction();
+                } 
+            } else if (action.HasEditLogShuttleAction()) { 
+                if (Query.GetLogDurationUs()) { 
+                    actExec.Reset(new TEditLogShuttleActionExecutor<TDurationDepot>(TraceIdx, action.GetEditLogShuttleAction())); 
+                } else { 
+                    actExec.Reset(new TEditLogShuttleActionExecutor<TCyclicDepot>(TraceIdx, action.GetEditLogShuttleAction())); 
+                } 
+            } else if (action.HasDropLogShuttleAction()) { 
+                if (Query.GetLogDurationUs()) { 
+                    actExec.Reset(new TDropLogShuttleActionExecutor<TDurationDepot>(TraceIdx, action.GetDropLogShuttleAction())); 
+                } else { 
+                    actExec.Reset(new TDropLogShuttleActionExecutor<TCyclicDepot>(TraceIdx, action.GetDropLogShuttleAction())); 
+                } 
+            } else if (action.HasCustomAction()) { 
+                THolder<TCustomActionExecutor> customExec(customActionFactory.Create(probe, action.GetCustomAction(), this)); 
+                if (customExec) { 
+                    if (!customExec->IsDestructive() || destructiveActionsAllowed) { 
+                        actExec.Reset(customExec.Release()); 
+                    } else { 
+                        ythrow yexception() << "probe '" << probe->Event.Name << "block #" << bi + 1 << " action #" << i + 1 
+                                            << " contains destructive CustomAction, but destructive actions are disabled." 
+                                            << " Please, consider using --unsafe-lwtrace command line parameter."; 
+                    } 
+                } else { 
+                    ythrow yexception() << "probe '" << probe->Event.Name << "block #" << bi + 1 << " action #" << i + 1 
+                                        << " contains unregistered CustomAction '" << action.GetCustomAction().GetName() << "'"; 
+                } 
+            } else if (action.HasKillAction()) { 
+                if (destructiveActionsAllowed) { 
+                    actExec.Reset(new NPrivate::TKillActionExecutor(probe)); 
+                } else { 
+                    ythrow yexception() << "probe '" << probe->Event.Name << "block #" << bi + 1 << " action #" << i + 1 
+                                        << " contains destructive KillAction, but destructive actions are disabled." 
+                                        << " Please, consider using --unsafe-lwtrace command line parameter."; 
+                } 
+            } else if (action.HasSleepAction()) { 
+                if (destructiveActionsAllowed) { 
+                    const TSleepAction& sleepAction = action.GetSleepAction(); 
                     if (sleepAction.GetNanoSeconds()) {
-                        ui64 nanoSeconds = sleepAction.GetNanoSeconds();
-                        actExec.Reset(new NPrivate::TSleepActionExecutor(probe, nanoSeconds));
-                    } else {
-                        ythrow yexception() << "probe '" << probe->Event.Name << "block #" << bi + 1 << " action #" << i + 1
-                                            << " SleepAction missing parameter 'NanoSeconds'";
-                    }
-                } else {
+                        ui64 nanoSeconds = sleepAction.GetNanoSeconds(); 
+                        actExec.Reset(new NPrivate::TSleepActionExecutor(probe, nanoSeconds)); 
+                    } else { 
+                        ythrow yexception() << "probe '" << probe->Event.Name << "block #" << bi + 1 << " action #" << i + 1 
+                                            << " SleepAction missing parameter 'NanoSeconds'"; 
+                    } 
+                } else { 
                     ythrow yexception() << "probe '" << probe->Event.Name << "block #" << bi + 1 << " action #" << i + 1
-                                        << " contains destructive SleepAction, but destructive actions are disabled."
-                                        << " Please, consider using --unsafe-lwtrace command line parameter.";
+                                        << " contains destructive SleepAction, but destructive actions are disabled." 
+                                        << " Please, consider using --unsafe-lwtrace command line parameter."; 
                 }
-            } else if (action.HasStatementAction()) {
-                const TStatementAction& statement = action.GetStatementAction();
-                TString exceptionPrefix;
-                TStringOutput exceptionPrefixOutput(exceptionPrefix);
-                exceptionPrefixOutput << "probe '" << probe->Event.Name << "' block #" << bi + 1 << " action #" << i + 1;
-                size_t expectedArgumentCount = 3;
-                if (statement.GetType() == ST_MOV || statement.GetType() == ST_ADD_EQ || statement.GetType() == ST_SUB_EQ) {
-                    expectedArgumentCount = 2;
-                } else if (statement.GetType() == ST_INC || statement.GetType() == ST_DEC) {
-                    expectedArgumentCount = 1;
-                }
-                ParseArguments<TStatementAction>(statement, probe->Event.Signature, exceptionPrefix, expectedArgumentCount, arguments);
-
-                TArgumentDescription arg0 = (expectedArgumentCount <= 0) ? TArgumentDescription() : arguments.at(0);
-                TArgumentDescription arg1 = (expectedArgumentCount <= 1) ? TArgumentDescription() : arguments.at(1);
-                TArgumentDescription arg2 = (expectedArgumentCount <= 2) ? TArgumentDescription() : arguments.at(2);
-
-                TString var0 = (expectedArgumentCount <= 0) ? "" : statement.GetArgument(0).GetVariable();
-                TString var1 = (expectedArgumentCount <= 1) ? "" : statement.GetArgument(1).GetVariable();
-                TString var2 = (expectedArgumentCount <= 2) ? "" : statement.GetArgument(2).GetVariable();
-
-                TString val0 = (expectedArgumentCount <= 0) ? "" : statement.GetArgument(0).GetValue();
-                TString val1 = (expectedArgumentCount <= 1) ? "" : statement.GetArgument(1).GetValue();
-                TString val2 = (expectedArgumentCount <= 2) ? "" : statement.GetArgument(2).GetValue();
+            } else if (action.HasStatementAction()) { 
+                const TStatementAction& statement = action.GetStatementAction(); 
+                TString exceptionPrefix; 
+                TStringOutput exceptionPrefixOutput(exceptionPrefix); 
+                exceptionPrefixOutput << "probe '" << probe->Event.Name << "' block #" << bi + 1 << " action #" << i + 1; 
+                size_t expectedArgumentCount = 3; 
+                if (statement.GetType() == ST_MOV || statement.GetType() == ST_ADD_EQ || statement.GetType() == ST_SUB_EQ) { 
+                    expectedArgumentCount = 2; 
+                } else if (statement.GetType() == ST_INC || statement.GetType() == ST_DEC) { 
+                    expectedArgumentCount = 1; 
+                } 
+                ParseArguments<TStatementAction>(statement, probe->Event.Signature, exceptionPrefix, expectedArgumentCount, arguments); 
+
+                TArgumentDescription arg0 = (expectedArgumentCount <= 0) ? TArgumentDescription() : arguments.at(0); 
+                TArgumentDescription arg1 = (expectedArgumentCount <= 1) ? TArgumentDescription() : arguments.at(1); 
+                TArgumentDescription arg2 = (expectedArgumentCount <= 2) ? TArgumentDescription() : arguments.at(2); 
+
+                TString var0 = (expectedArgumentCount <= 0) ? "" : statement.GetArgument(0).GetVariable(); 
+                TString var1 = (expectedArgumentCount <= 1) ? "" : statement.GetArgument(1).GetVariable(); 
+                TString var2 = (expectedArgumentCount <= 2) ? "" : statement.GetArgument(2).GetVariable(); 
+
+                TString val0 = (expectedArgumentCount <= 0) ? "" : statement.GetArgument(0).GetValue(); 
+                TString val1 = (expectedArgumentCount <= 1) ? "" : statement.GetArgument(1).GetValue(); 
+                TString val2 = (expectedArgumentCount <= 2) ? "" : statement.GetArgument(2).GetValue(); 
 
                 const char* tName1 = (expectedArgumentCount <= 1 || arg1.ParamIdx == size_t(-1))
                     ? nullptr : probe->Event.Signature.ParamTypes[arg1.ParamIdx];
                 const char* tName2 = (expectedArgumentCount <= 2 || arg2.ParamIdx == size_t(-1))
                     ? nullptr : probe->Event.Signature.ParamTypes[arg2.ParamIdx];
 
-                if (arg0.Type == OT_VARIABLE) {
-                    switch (statement.GetType()) {
-#define PARSE_UNARY_INPLACE_STATEMENT_MACRO(n, t, v, fn)                   \
-    {                                                                      \
-        typedef TUnaryInplaceStatementExecutor<t, fn<TReceiver<t>>> TExec; \
-        TReceiver<t> receiver(traceVariables, var0);                       \
-        actExec.Reset(new TExec(receiver));                                \
-        break;                                                             \
-    }
-
-#define PARSE_BINARY_INPLACE_STATEMENT_MACRO2(n, t, v, fn, ft)                     \
-    if (arg1.Type == ft) {                                                         \
-        typedef TBinaryInplaceStatementExecutor<t, fn<TReceiver<t>, t>, ft> TExec; \
-        TOperand<t, ft> firstParam(traceVariables, var1, val1, arg1.ParamIdx);     \
-        actExec.Reset(new TExec(receiver, firstParam));                            \
-        break;                                                                     \
-    }
-
-#define PARSE_BINARY_INPLACE_STATEMENT_MACRO(n, t, v, fn)                       \
-    if (arg1.ParamIdx == size_t(-1) || strcmp(tName1, n) == 0) {                \
-        TReceiver<t> receiver(traceVariables, var0);                            \
-        FOREACH_RIGHT_TYPE(PARSE_BINARY_INPLACE_STATEMENT_MACRO2, n, t, v, fn); \
-    }
-
-#define PARSE_BINARY_STATEMENT_MACRO2(n, t, v, fn, ft)                         \
-    if (arg1.Type == ft) {                                                     \
-        typedef TBinaryStatementExecutor<t, fn<t, t>, ft> TExec;               \
-        TOperand<t, ft> firstParam(traceVariables, var1, val1, arg1.ParamIdx); \
-        actExec.Reset(new TExec(receiver, firstParam));                        \
-        break;                                                                 \
-    }
-
-#define PARSE_BINARY_STATEMENT_MACRO(n, t, v, fn)                       \
-    if (arg1.ParamIdx == size_t(-1) || strcmp(tName1, n) == 0) {        \
-        TReceiver<t> receiver(traceVariables, var0);                    \
-        FOREACH_RIGHT_TYPE(PARSE_BINARY_STATEMENT_MACRO2, n, t, v, fn); \
-    }
-
-#define CREATE_OPERAND_GETTER_N(N, type, arg_type)                                                                                       \
-    if (arg##N.Type == arg_type) {                                                                                                       \
+                if (arg0.Type == OT_VARIABLE) { 
+                    switch (statement.GetType()) { 
+#define PARSE_UNARY_INPLACE_STATEMENT_MACRO(n, t, v, fn)                   \ 
+    {                                                                      \ 
+        typedef TUnaryInplaceStatementExecutor<t, fn<TReceiver<t>>> TExec; \ 
+        TReceiver<t> receiver(traceVariables, var0);                       \ 
+        actExec.Reset(new TExec(receiver));                                \ 
+        break;                                                             \ 
+    } 
+
+#define PARSE_BINARY_INPLACE_STATEMENT_MACRO2(n, t, v, fn, ft)                     \ 
+    if (arg1.Type == ft) {                                                         \ 
+        typedef TBinaryInplaceStatementExecutor<t, fn<TReceiver<t>, t>, ft> TExec; \ 
+        TOperand<t, ft> firstParam(traceVariables, var1, val1, arg1.ParamIdx);     \ 
+        actExec.Reset(new TExec(receiver, firstParam));                            \ 
+        break;                                                                     \ 
+    } 
+
+#define PARSE_BINARY_INPLACE_STATEMENT_MACRO(n, t, v, fn)                       \ 
+    if (arg1.ParamIdx == size_t(-1) || strcmp(tName1, n) == 0) {                \ 
+        TReceiver<t> receiver(traceVariables, var0);                            \ 
+        FOREACH_RIGHT_TYPE(PARSE_BINARY_INPLACE_STATEMENT_MACRO2, n, t, v, fn); \ 
+    } 
+
+#define PARSE_BINARY_STATEMENT_MACRO2(n, t, v, fn, ft)                         \ 
+    if (arg1.Type == ft) {                                                     \ 
+        typedef TBinaryStatementExecutor<t, fn<t, t>, ft> TExec;               \ 
+        TOperand<t, ft> firstParam(traceVariables, var1, val1, arg1.ParamIdx); \ 
+        actExec.Reset(new TExec(receiver, firstParam));                        \ 
+        break;                                                                 \ 
+    } 
+
+#define PARSE_BINARY_STATEMENT_MACRO(n, t, v, fn)                       \ 
+    if (arg1.ParamIdx == size_t(-1) || strcmp(tName1, n) == 0) {        \ 
+        TReceiver<t> receiver(traceVariables, var0);                    \ 
+        FOREACH_RIGHT_TYPE(PARSE_BINARY_STATEMENT_MACRO2, n, t, v, fn); \ 
+    } 
+
+#define CREATE_OPERAND_GETTER_N(N, type, arg_type)                                                                                       \ 
+    if (arg##N.Type == arg_type) {                                                                                                       \ 
         operand##N.Reset(new TOperandGetter<type, arg_type>(TOperand<type, arg_type>(traceVariables, var##N, val##N, arg##N.ParamIdx))); \
     }
 
-#define TERNARY_ON_TYPE(n, t, v, fn)                                                                                          \
+#define TERNARY_ON_TYPE(n, t, v, fn)                                                                                          \ 
     if ((arg1.ParamIdx == size_t(-1) || strcmp(tName1, n) == 0) && (arg2.ParamIdx == size_t(-1) || strcmp(tName2, n) == 0)) { \
-        TAutoPtr<IOperandGetter<t>> operand1, operand2;                                                                       \
-        FOREACH_LEFT_TYPE(CREATE_OPERAND_GETTER_N, 1, t);                                                                     \
-        FOREACH_RIGHT_TYPE(CREATE_OPERAND_GETTER_N, 2, t);                                                                    \
-        if (operand1 && operand2) {                                                                                           \
-            actExec.Reset(new TTernaryStatementExecutor<t, fn<t>>(                                                            \
-                TReceiver<t>(traceVariables, var0),                                                                           \
-                operand1,                                                                                                     \
-                operand2));                                                                                                   \
-        }                                                                                                                     \
-        break;                                                                                                                \
+        TAutoPtr<IOperandGetter<t>> operand1, operand2;                                                                       \ 
+        FOREACH_LEFT_TYPE(CREATE_OPERAND_GETTER_N, 1, t);                                                                     \ 
+        FOREACH_RIGHT_TYPE(CREATE_OPERAND_GETTER_N, 2, t);                                                                    \ 
+        if (operand1 && operand2) {                                                                                           \ 
+            actExec.Reset(new TTernaryStatementExecutor<t, fn<t>>(                                                            \ 
+                TReceiver<t>(traceVariables, var0),                                                                           \ 
+                operand1,                                                                                                     \ 
+                operand2));                                                                                                   \ 
+        }                                                                                                                     \ 
+        break;                                                                                                                \ 
     }
 
 #define IMPLEMENT_TERNARY_STATEMENT(fn) FOR_MATH_PARAMTYPE(TERNARY_ON_TYPE, fn)
 
-                        case ST_INC:
-                            FOR_MATH_PARAMTYPE(PARSE_UNARY_INPLACE_STATEMENT_MACRO, TInc);
-                            break;
-                        case ST_DEC:
-                            FOR_MATH_PARAMTYPE(PARSE_UNARY_INPLACE_STATEMENT_MACRO, TDec);
-                            break;
-                        case ST_MOV:
-                            FOR_MATH_PARAMTYPE(PARSE_BINARY_STATEMENT_MACRO, TTraceSecondArg);
-                            break;
-                        case ST_ADD_EQ:
-                            FOR_MATH_PARAMTYPE(PARSE_BINARY_INPLACE_STATEMENT_MACRO, TAddEq);
-                            break;
-                        case ST_SUB_EQ:
-                            FOR_MATH_PARAMTYPE(PARSE_BINARY_INPLACE_STATEMENT_MACRO, TSubEq);
-                            break;
-                        case ST_ADD:
-                            IMPLEMENT_TERNARY_STATEMENT(std::plus)
-                            break;
-                        case ST_SUB:
-                            IMPLEMENT_TERNARY_STATEMENT(std::minus)
-                            break;
-                        case ST_MUL:
-                            IMPLEMENT_TERNARY_STATEMENT(std::multiplies)
-                            break;
-                        case ST_DIV:
-                            IMPLEMENT_TERNARY_STATEMENT(std::divides)
-                            break;
-                        case ST_MOD:
-                            IMPLEMENT_TERNARY_STATEMENT(std::modulus)
-                            break;
-                        default:
-                            ythrow yexception() << "block #" << bi + 1 << " action #" << i + 1
-                                                << " has not supported statement type #" << int(statement.GetType());
-                    }
+                        case ST_INC: 
+                            FOR_MATH_PARAMTYPE(PARSE_UNARY_INPLACE_STATEMENT_MACRO, TInc); 
+                            break; 
+                        case ST_DEC: 
+                            FOR_MATH_PARAMTYPE(PARSE_UNARY_INPLACE_STATEMENT_MACRO, TDec); 
+                            break; 
+                        case ST_MOV: 
+                            FOR_MATH_PARAMTYPE(PARSE_BINARY_STATEMENT_MACRO, TTraceSecondArg); 
+                            break; 
+                        case ST_ADD_EQ: 
+                            FOR_MATH_PARAMTYPE(PARSE_BINARY_INPLACE_STATEMENT_MACRO, TAddEq); 
+                            break; 
+                        case ST_SUB_EQ: 
+                            FOR_MATH_PARAMTYPE(PARSE_BINARY_INPLACE_STATEMENT_MACRO, TSubEq); 
+                            break; 
+                        case ST_ADD: 
+                            IMPLEMENT_TERNARY_STATEMENT(std::plus) 
+                            break; 
+                        case ST_SUB: 
+                            IMPLEMENT_TERNARY_STATEMENT(std::minus) 
+                            break; 
+                        case ST_MUL: 
+                            IMPLEMENT_TERNARY_STATEMENT(std::multiplies) 
+                            break; 
+                        case ST_DIV: 
+                            IMPLEMENT_TERNARY_STATEMENT(std::divides) 
+                            break; 
+                        case ST_MOD: 
+                            IMPLEMENT_TERNARY_STATEMENT(std::modulus) 
+                            break; 
+                        default: 
+                            ythrow yexception() << "block #" << bi + 1 << " action #" << i + 1 
+                                                << " has not supported statement type #" << int(statement.GetType()); 
+                    } 
                 }
-                if (!actExec) {
+                if (!actExec) { 
                     ythrow yexception() << "block #" << bi + 1 << " action #" << i + 1
                                         << " can't create action";
-                }
+                } 
 #undef CREATE_OPERAND_GETTER_N
 #undef TERNARY_ON_TYPE
 #undef IMPLEMENT_TERNARY_STATEMENT
@@ -819,233 +819,233 @@ namespace NLWTrace {
 #undef PARSE_BINARY_STATEMENT_MACRO
 #undef PARSE_BINARY_INPLACE_STATEMENT_MACRO
 #undef PARSE_UNARY_INPLACE_STATEMENT_MACRO
-            } else {
-                ythrow yexception() << "block #" << bi + 1 << " action #" << i + 1
-                                    << " has not supported action '" << action.ShortDebugString() << "'";
-            }
-            if (!exec) {
-                exec.Reset(actExec.Release());
-                last = exec.Get();
-            } else {
-                last->SetNext(actExec.Release());
-                last = last->GetNext();
-            }
-        }
-
-        if (!probe->Attach(exec.Get())) {
-            ythrow yexception() << "block #" << bi + 1
-                                << " cannot be attached to probe '" << probe->Event.Name << "': no free slots";
-        }
-        Probes.push_back(std::make_pair(probe, exec.Release()));
-#else
-        Y_UNUSED(bi);
-        Y_UNUSED(pred);
-        Y_UNUSED(actions);
-        Y_UNUSED(probe);
-        Y_UNUSED(destructiveActionsAllowed);
-        Y_UNUSED(traceVariables);
-        Y_UNUSED(customActionFactory);
-#endif
-    }
-
-    TSession::TSession(ui64 traceIdx,
-                   TProbeRegistry& registry,
-                   const TQuery& query,
-                   const bool destructiveActionsAllowed,
-                   const TCustomActionFactory& customActionFactory)
-        : StartTime(TInstant::Now())
-        , TraceIdx(traceIdx)
-        , Registry(registry)
-        , StoreDuration(TDuration::MicroSeconds(query.GetLogDurationUs() * 11 / 10)) // +10% to try avoid truncation while reading multiple threads/traces
-        , ReadDuration(TDuration::MicroSeconds(query.GetLogDurationUs()))
+            } else { 
+                ythrow yexception() << "block #" << bi + 1 << " action #" << i + 1 
+                                    << " has not supported action '" << action.ShortDebugString() << "'"; 
+            } 
+            if (!exec) { 
+                exec.Reset(actExec.Release()); 
+                last = exec.Get(); 
+            } else { 
+                last->SetNext(actExec.Release()); 
+                last = last->GetNext(); 
+            } 
+        } 
+ 
+        if (!probe->Attach(exec.Get())) { 
+            ythrow yexception() << "block #" << bi + 1 
+                                << " cannot be attached to probe '" << probe->Event.Name << "': no free slots"; 
+        }
+        Probes.push_back(std::make_pair(probe, exec.Release())); 
+#else 
+        Y_UNUSED(bi); 
+        Y_UNUSED(pred); 
+        Y_UNUSED(actions); 
+        Y_UNUSED(probe); 
+        Y_UNUSED(destructiveActionsAllowed); 
+        Y_UNUSED(traceVariables); 
+        Y_UNUSED(customActionFactory); 
+#endif 
+    } 
+ 
+    TSession::TSession(ui64 traceIdx, 
+                   TProbeRegistry& registry, 
+                   const TQuery& query, 
+                   const bool destructiveActionsAllowed, 
+                   const TCustomActionFactory& customActionFactory) 
+        : StartTime(TInstant::Now()) 
+        , TraceIdx(traceIdx) 
+        , Registry(registry) 
+        , StoreDuration(TDuration::MicroSeconds(query.GetLogDurationUs() * 11 / 10)) // +10% to try avoid truncation while reading multiple threads/traces 
+        , ReadDuration(TDuration::MicroSeconds(query.GetLogDurationUs())) 
         , CyclicLog(query.GetPerThreadLogSize() ? query.GetPerThreadLogSize() : 1000)
-        , DurationLog(StoreDuration)
+        , DurationLog(StoreDuration) 
         , CyclicDepot(query.GetPerThreadLogSize() ? query.GetPerThreadLogSize() : 1000)
-        , DurationDepot(StoreDuration)
-        , LastTrackId(0)
+        , DurationDepot(StoreDuration) 
+        , LastTrackId(0) 
         , LastSpanId(0)
-        , Attached(true)
-        , Query(query)
-    {
-        try {
-            for (size_t bi = 0; bi < query.BlocksSize(); bi++) {
-                const TBlock& block = query.GetBlocks(bi);
-                if (!block.HasProbeDesc()) {
-                    ythrow yexception() << "block #" << bi + 1 << " has no probe description";
-                }
-                const TProbeDesc& pdesc = block.GetProbeDesc();
-                const TPredicate* pred = block.HasPredicate() ? &block.GetPredicate() : nullptr;
-                if (block.ActionSize() < 1) {
-                    ythrow yexception() << "block #" << bi + 1 << " has no action";
-                }
-                const NProtoBuf::RepeatedPtrField<TAction>& actions = block.action();
+        , Attached(true) 
+        , Query(query) 
+    { 
+        try { 
+            for (size_t bi = 0; bi < query.BlocksSize(); bi++) { 
+                const TBlock& block = query.GetBlocks(bi); 
+                if (!block.HasProbeDesc()) { 
+                    ythrow yexception() << "block #" << bi + 1 << " has no probe description"; 
+                } 
+                const TProbeDesc& pdesc = block.GetProbeDesc(); 
+                const TPredicate* pred = block.HasPredicate() ? &block.GetPredicate() : nullptr; 
+                if (block.ActionSize() < 1) { 
+                    ythrow yexception() << "block #" << bi + 1 << " has no action"; 
+                } 
+                const NProtoBuf::RepeatedPtrField<TAction>& actions = block.action(); 
                 if (pdesc.GetName() && pdesc.GetProvider()) {
-                    TProbeRegistry::TProbesAccessor probes(Registry);
-                    bool found = false;
-                    for (auto& kv : probes) {
-                        TProbe* probe = kv.first;
-                        if (probe->Event.Name == pdesc.GetName() && probe->Event.GetProvider() == pdesc.GetProvider()) {
-                            InsertExecutor(TraceVariables, bi, pred, actions, probe, destructiveActionsAllowed, customActionFactory);
-                            found = true;
-                            break;
-                        }
-                    }
-                    if (!found) {
-                        ythrow yexception() << "block #" << bi + 1 << " has no matching probe with name '"
-                                            << pdesc.GetName() << "' provider '" << pdesc.GetProvider() << "'";
-                    }
+                    TProbeRegistry::TProbesAccessor probes(Registry); 
+                    bool found = false; 
+                    for (auto& kv : probes) { 
+                        TProbe* probe = kv.first; 
+                        if (probe->Event.Name == pdesc.GetName() && probe->Event.GetProvider() == pdesc.GetProvider()) { 
+                            InsertExecutor(TraceVariables, bi, pred, actions, probe, destructiveActionsAllowed, customActionFactory); 
+                            found = true; 
+                            break; 
+                        } 
+                    } 
+                    if (!found) { 
+                        ythrow yexception() << "block #" << bi + 1 << " has no matching probe with name '" 
+                                            << pdesc.GetName() << "' provider '" << pdesc.GetProvider() << "'"; 
+                    } 
                 } else if (pdesc.GetGroup()) {
-                    bool found = false;
-                    TProbeRegistry::TProbesAccessor probes(Registry);
-                    for (auto& kv : probes) {
-                        TProbe* probe = kv.first;
-                        for (const char* const* gi = probe->Event.Groups; *gi != nullptr; gi++) {
-                            if (*gi == pdesc.GetGroup()) {
-                                InsertExecutor(TraceVariables, bi, pred, actions, probe, destructiveActionsAllowed, customActionFactory);
-                                found = true;
-                                break;
-                            }
-                        }
-                    }
-                    if (!found) {
-                        ythrow yexception() << "block #" << bi + 1
-                                            << " has no matching probes for group '" << pdesc.GetGroup() << "'";
-                    }
-                } else {
-                    ythrow yexception() << "block #" << bi + 1 << " has bad probe description: name '" << pdesc.GetName()
-                                        << "' provider '" << pdesc.GetProvider()
-                                        << "' group '" << pdesc.GetGroup() << "'";
-                }
-            }
-        } catch (...) {
-            Destroy();
-            throw;
-        }
-    }
-
-    void TSession::Destroy() {
-        Detach();
-        for (auto& probe : Probes) {
-            delete probe.second;
-        }
-    }
-
-    TSession::~TSession() {
-        Destroy();
-    }
-
-    void TSession::Detach() {
-        if (Attached) {
-            for (auto& p : Probes) {
-                TProbe* probe = p.first;
-                IExecutor* exec = p.second;
-                probe->Detach(exec);
-            }
-            Attached = false;
-        }
-    }
-
-    size_t TSession::GetEventsCount() const {
-        return CyclicLog.GetEventsCount() + DurationLog.GetEventsCount() + CyclicDepot.GetEventsCount() + DurationDepot.GetEventsCount();
-    }
-
-    size_t TSession::GetThreadsCount() const {
-        return CyclicLog.GetThreadsCount() + DurationLog.GetThreadsCount() + CyclicDepot.GetThreadsCount() + DurationDepot.GetThreadsCount();
-    }
-
-    class TReadToProtobuf {
-    private:
-        TMap<TThread::TId, TVector<TLogItem>> Items;
-
-    public:
-        void ToProtobuf(TLogPb& pb) const {
-            TSet<TProbe*> probes;
-            ui64 eventsCount = 0;
-            for (auto kv : Items) {
-                TThreadLogPb* tpb = pb.AddThreadLogs();
-                tpb->SetThreadId(kv.first);
-                for (TLogItem& item : kv.second) {
-                    item.ToProtobuf(*tpb->AddLogItems());
-                    probes.insert(item.Probe);
-                    eventsCount++;
-                }
-            }
-            pb.SetEventsCount(eventsCount);
-            for (TProbe* probe : probes) {
-                probe->Event.ToProtobuf(*pb.AddEvents());
-            }
-        }
-
-        void Push(TThread::TId tid, const TLogItem& item) {
-            // Avoid any expansive operations in Push(), because it executes under lock and blocks program being traced
-            Items[tid].push_back(item);
-        }
-    };
-
-    void TSession::ToProtobuf(TLogPb& pb) const {
-        TReadToProtobuf reader;
-        ReadItems(reader);
-        reader.ToProtobuf(pb);
-        pb.MutableQuery()->CopyFrom(Query);
-        pb.SetCrtTime(TInstant::Now().GetValue());
-    }
-
-    TManager::TManager(TProbeRegistry& registry, bool allowDestructiveActions)
-        : Registry(registry)
-        , DestructiveActionsAllowed(allowDestructiveActions)
+                    bool found = false; 
+                    TProbeRegistry::TProbesAccessor probes(Registry); 
+                    for (auto& kv : probes) { 
+                        TProbe* probe = kv.first; 
+                        for (const char* const* gi = probe->Event.Groups; *gi != nullptr; gi++) { 
+                            if (*gi == pdesc.GetGroup()) { 
+                                InsertExecutor(TraceVariables, bi, pred, actions, probe, destructiveActionsAllowed, customActionFactory); 
+                                found = true; 
+                                break; 
+                            } 
+                        } 
+                    } 
+                    if (!found) { 
+                        ythrow yexception() << "block #" << bi + 1 
+                                            << " has no matching probes for group '" << pdesc.GetGroup() << "'"; 
+                    } 
+                } else { 
+                    ythrow yexception() << "block #" << bi + 1 << " has bad probe description: name '" << pdesc.GetName() 
+                                        << "' provider '" << pdesc.GetProvider() 
+                                        << "' group '" << pdesc.GetGroup() << "'"; 
+                } 
+            } 
+        } catch (...) { 
+            Destroy(); 
+            throw; 
+        } 
+    } 
+ 
+    void TSession::Destroy() { 
+        Detach(); 
+        for (auto& probe : Probes) { 
+            delete probe.second; 
+        } 
+    } 
+ 
+    TSession::~TSession() { 
+        Destroy(); 
+    } 
+ 
+    void TSession::Detach() { 
+        if (Attached) { 
+            for (auto& p : Probes) { 
+                TProbe* probe = p.first; 
+                IExecutor* exec = p.second; 
+                probe->Detach(exec); 
+            } 
+            Attached = false; 
+        } 
+    } 
+ 
+    size_t TSession::GetEventsCount() const { 
+        return CyclicLog.GetEventsCount() + DurationLog.GetEventsCount() + CyclicDepot.GetEventsCount() + DurationDepot.GetEventsCount(); 
+    } 
+ 
+    size_t TSession::GetThreadsCount() const { 
+        return CyclicLog.GetThreadsCount() + DurationLog.GetThreadsCount() + CyclicDepot.GetThreadsCount() + DurationDepot.GetThreadsCount(); 
+    } 
+ 
+    class TReadToProtobuf { 
+    private: 
+        TMap<TThread::TId, TVector<TLogItem>> Items; 
+ 
+    public: 
+        void ToProtobuf(TLogPb& pb) const { 
+            TSet<TProbe*> probes; 
+            ui64 eventsCount = 0; 
+            for (auto kv : Items) { 
+                TThreadLogPb* tpb = pb.AddThreadLogs(); 
+                tpb->SetThreadId(kv.first); 
+                for (TLogItem& item : kv.second) { 
+                    item.ToProtobuf(*tpb->AddLogItems()); 
+                    probes.insert(item.Probe); 
+                    eventsCount++; 
+                } 
+            } 
+            pb.SetEventsCount(eventsCount); 
+            for (TProbe* probe : probes) { 
+                probe->Event.ToProtobuf(*pb.AddEvents()); 
+            } 
+        } 
+ 
+        void Push(TThread::TId tid, const TLogItem& item) { 
+            // Avoid any expansive operations in Push(), because it executes under lock and blocks program being traced 
+            Items[tid].push_back(item); 
+        } 
+    }; 
+ 
+    void TSession::ToProtobuf(TLogPb& pb) const { 
+        TReadToProtobuf reader; 
+        ReadItems(reader); 
+        reader.ToProtobuf(pb); 
+        pb.MutableQuery()->CopyFrom(Query); 
+        pb.SetCrtTime(TInstant::Now().GetValue()); 
+    } 
+ 
+    TManager::TManager(TProbeRegistry& registry, bool allowDestructiveActions) 
+        : Registry(registry) 
+        , DestructiveActionsAllowed(allowDestructiveActions) 
         , SerializingExecutor(new TRunLogShuttleActionExecutor<TCyclicDepot>(0, {}, nullptr, nullptr, nullptr))
-    {
-    }
-
-    TManager::~TManager() {
-        for (auto& trace : Traces) {
-            delete trace.second;
-        }
-    }
-
-    bool TManager::HasTrace(const TString& id) const {
-        TGuard<TMutex> g(Mtx);
+    { 
+    } 
+ 
+    TManager::~TManager() { 
+        for (auto& trace : Traces) { 
+            delete trace.second; 
+        } 
+    } 
+ 
+    bool TManager::HasTrace(const TString& id) const { 
+        TGuard<TMutex> g(Mtx); 
         return Traces.contains(id);
-    }
-
-    const TSession* TManager::GetTrace(const TString& id) const {
-        TGuard<TMutex> g(Mtx);
-        TTraces::const_iterator it = Traces.find(id);
-        if (it == Traces.end()) {
-            ythrow yexception() << "trace id '" << id << "' is not used";
-        } else {
-            return it->second;
-        }
-    }
-
-    void TManager::New(const TString& id, const TQuery& query) {
-        TGuard<TMutex> g(Mtx);
-        if (Traces.find(id) == Traces.end()) {
-            TSession* trace = new TSession(++LastTraceIdx, Registry, query, GetDestructiveActionsAllowed(), CustomActionFactory);
-            Traces[id] = trace;
-        } else {
-            ythrow yexception() << "trace id '" << id << "' is already used";
-        }
-    }
-
-    void TManager::Delete(const TString& id) {
-        TGuard<TMutex> g(Mtx);
-        TTraces::iterator it = Traces.find(id);
-        if (it == Traces.end()) {
-            ythrow yexception() << "trace id '" << id << "' is not used";
-        } else {
-            delete it->second;
-            Traces.erase(it);
-        }
-    }
-
-    void TManager::Stop(const TString& id) {
-        TGuard<TMutex> g(Mtx);
-        TTraces::iterator it = Traces.find(id);
-        if (it == Traces.end()) {
-            ythrow yexception() << "trace id '" << id << "' is not used";
-        } else {
-            it->second->Detach();
-        }
-    }
-}
+    } 
+ 
+    const TSession* TManager::GetTrace(const TString& id) const { 
+        TGuard<TMutex> g(Mtx); 
+        TTraces::const_iterator it = Traces.find(id); 
+        if (it == Traces.end()) { 
+            ythrow yexception() << "trace id '" << id << "' is not used"; 
+        } else { 
+            return it->second; 
+        } 
+    } 
+ 
+    void TManager::New(const TString& id, const TQuery& query) { 
+        TGuard<TMutex> g(Mtx); 
+        if (Traces.find(id) == Traces.end()) { 
+            TSession* trace = new TSession(++LastTraceIdx, Registry, query, GetDestructiveActionsAllowed(), CustomActionFactory); 
+            Traces[id] = trace; 
+        } else { 
+            ythrow yexception() << "trace id '" << id << "' is already used"; 
+        } 
+    } 
+ 
+    void TManager::Delete(const TString& id) { 
+        TGuard<TMutex> g(Mtx); 
+        TTraces::iterator it = Traces.find(id); 
+        if (it == Traces.end()) { 
+            ythrow yexception() << "trace id '" << id << "' is not used"; 
+        } else { 
+            delete it->second; 
+            Traces.erase(it); 
+        } 
+    } 
+ 
+    void TManager::Stop(const TString& id) { 
+        TGuard<TMutex> g(Mtx); 
+        TTraces::iterator it = Traces.find(id); 
+        if (it == Traces.end()) { 
+            ythrow yexception() << "trace id '" << id << "' is not used"; 
+        } else { 
+            it->second->Detach(); 
+        } 
+    } 
+} 
diff --git a/library/cpp/lwtrace/trace_ut.cpp b/library/cpp/lwtrace/trace_ut.cpp
index cb03e4fbde..dd67212ea2 100644
--- a/library/cpp/lwtrace/trace_ut.cpp
+++ b/library/cpp/lwtrace/trace_ut.cpp
@@ -1,11 +1,11 @@
-#include "all.h"
-
+#include "all.h" 
+ 
 #include <library/cpp/lwtrace/protos/lwtrace.pb.h>
 
 #include <library/cpp/testing/unittest/registar.h>
-
+ 
 #include <google/protobuf/text_format.h>
-
+ 
 enum ESimpleEnum {
     ValueA,
     ValueB,
@@ -27,53 +27,53 @@ enum class EEnumClass {
     PROBE(DurationParam, GROUPS("Group"), TYPES(TDuration), NAMES("value"))                              \
     PROBE(ProtoEnum, GROUPS("Group"), TYPES(NLWTrace::EOperatorType), NAMES("value"))                    \
     PROBE(IntIntParams, GROUPS("Group"), TYPES(ui32, ui64), NAMES("value1", "value2"))                   \
-    /**/
-
-LWTRACE_DECLARE_PROVIDER(LWTRACE_UT_PROVIDER)
-LWTRACE_DEFINE_PROVIDER(LWTRACE_UT_PROVIDER)
-LWTRACE_USING(LWTRACE_UT_PROVIDER)
-
-using namespace NLWTrace;
-
+    /**/ 
+ 
+LWTRACE_DECLARE_PROVIDER(LWTRACE_UT_PROVIDER) 
+LWTRACE_DEFINE_PROVIDER(LWTRACE_UT_PROVIDER) 
+LWTRACE_USING(LWTRACE_UT_PROVIDER) 
+ 
+using namespace NLWTrace; 
+ 
 Y_UNIT_TEST_SUITE(LWTraceTrace) {
 #ifndef LWTRACE_DISABLE
     Y_UNIT_TEST(Smoke) {
-        TManager mngr(*Singleton<TProbeRegistry>(), true);
-        TQuery q;
-        bool parsed = NProtoBuf::TextFormat::ParseFromString(R"END(
-            Blocks {
-                ProbeDesc {
-                    Name: "NoParam"
-                    Provider: "LWTRACE_UT_PROVIDER"
-                }
-                Action {
-                    LogAction { }
-                }
-            }
-        )END",
-                                                             &q);
-        UNIT_ASSERT(parsed);
-        mngr.New("Query1", q);
-        LWPROBE(NoParam);
-        struct {
-            void Push(TThread::TId, const TLogItem& item) {
-                UNIT_ASSERT(TString(item.Probe->Event.Name) == "NoParam");
-            }
-        } reader;
-        mngr.ReadLog("Query1", reader);
+        TManager mngr(*Singleton<TProbeRegistry>(), true); 
+        TQuery q; 
+        bool parsed = NProtoBuf::TextFormat::ParseFromString(R"END( 
+            Blocks { 
+                ProbeDesc { 
+                    Name: "NoParam" 
+                    Provider: "LWTRACE_UT_PROVIDER" 
+                } 
+                Action { 
+                    LogAction { } 
+                } 
+            } 
+        )END", 
+                                                             &q); 
+        UNIT_ASSERT(parsed); 
+        mngr.New("Query1", q); 
+        LWPROBE(NoParam); 
+        struct { 
+            void Push(TThread::TId, const TLogItem& item) { 
+                UNIT_ASSERT(TString(item.Probe->Event.Name) == "NoParam"); 
+            } 
+        } reader; 
+        mngr.ReadLog("Query1", reader); 
 
         LWPROBE(EnumParams, ValueA, EEnumClass::ValueC);
         LWPROBE(InstantParam, TInstant::Seconds(42));
         LWPROBE(DurationParam, TDuration::MilliSeconds(146));
         LWPROBE(ProtoEnum, OT_EQ);
-    }
+    } 
 
     Y_UNIT_TEST(Predicate) {
         TManager mngr(*Singleton<TProbeRegistry>(), true);
         TQuery q;
         bool parsed = NProtoBuf::TextFormat::ParseFromString(R"END(
             Blocks {
-                ProbeDesc {
+                ProbeDesc { 
                     Name: "IntParam"
                     Provider: "LWTRACE_UT_PROVIDER"
                 }
@@ -85,7 +85,7 @@ Y_UNIT_TEST_SUITE(LWTraceTrace) {
                     }
                 }
                 Action {
-                    LogAction { }
+                    LogAction { } 
                 }
             }
         )END", &q);
@@ -117,7 +117,7 @@ Y_UNIT_TEST_SUITE(LWTraceTrace) {
         TQuery q;
         bool parsed = NProtoBuf::TextFormat::ParseFromString(R"END(
             Blocks {
-                ProbeDesc {
+                ProbeDesc { 
                     Name: "IntParam"
                     Provider: "LWTRACE_UT_PROVIDER"
                 }
@@ -203,7 +203,7 @@ Y_UNIT_TEST_SUITE(LWTraceTrace) {
                 }
             }
             Blocks {
-                ProbeDesc {
+                ProbeDesc { 
                     Name: "IntParam"
                     Provider: "LWTRACE_UT_PROVIDER"
                 }
@@ -216,53 +216,53 @@ Y_UNIT_TEST_SUITE(LWTraceTrace) {
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varDec" }
-                        Argument { Value: "-1" }
+                        Argument { Value: "-1" } 
                     }
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varMov" }
-                        Argument { Value: "3" }
+                        Argument { Value: "3" } 
                     }
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varAddEq" }
-                        Argument { Value: "5" }
+                        Argument { Value: "5" } 
                     }
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varSubEq" }
-                        Argument { Value: "-5" }
+                        Argument { Value: "-5" } 
                     }
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varAdd" }
-                        Argument { Value: "5" }
+                        Argument { Value: "5" } 
                     }
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varSub" }
-                        Argument { Value: "1" }
+                        Argument { Value: "1" } 
                     }
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varMul" }
-                        Argument { Value: "12" }
+                        Argument { Value: "12" } 
                     }
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varDiv" }
-                        Argument { Value: "3" }
+                        Argument { Value: "3" } 
                     }
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varMod" }
-                        Argument { Value: "2" }
+                        Argument { Value: "2" } 
                     }
                 }
                 Action {
                     LogAction { }
                 }
-            }
+            } 
         )END", &q);
         UNIT_ASSERT(parsed);
         mngr.New("QueryName", q);
@@ -286,7 +286,7 @@ Y_UNIT_TEST_SUITE(LWTraceTrace) {
         TQuery q;
         bool parsed = NProtoBuf::TextFormat::ParseFromString(R"END(
             Blocks {
-                ProbeDesc {
+                ProbeDesc { 
                     Name: "IntIntParams"
                     Provider: "LWTRACE_UT_PROVIDER"
                 }
@@ -353,7 +353,7 @@ Y_UNIT_TEST_SUITE(LWTraceTrace) {
                 }
             }
             Blocks {
-                ProbeDesc {
+                ProbeDesc { 
                     Name: "IntIntParams"
                     Provider: "LWTRACE_UT_PROVIDER"
                 }
@@ -361,48 +361,48 @@ Y_UNIT_TEST_SUITE(LWTraceTrace) {
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varMov" }
-                        Argument { Param: "value1" }
+                        Argument { Param: "value1" } 
                     }
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varAddEq" }
-                        Argument { Param: "value1" }
+                        Argument { Param: "value1" } 
                     }
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varSubEq" }
-                        Argument { Value: "-22" }
+                        Argument { Value: "-22" } 
                     }
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varAdd" }
-                        Argument { Value: "25" }
+                        Argument { Value: "25" } 
                     }
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varSub" }
-                        Argument { Value: "19" }
+                        Argument { Value: "19" } 
                     }
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varMul" }
-                        Argument { Value: "66" }
+                        Argument { Value: "66" } 
                     }
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varDiv" }
-                        Argument { Value: "7" }
+                        Argument { Value: "7" } 
                     }
                     Operators {
                         Type: OT_EQ
                         Argument { Variable: "varMod" }
-                        Argument { Value: "1" }
+                        Argument { Value: "1" } 
                     }
                 }
                 Action {
                     LogAction { }
                 }
-            }
+            } 
         )END", &q);
         UNIT_ASSERT(parsed);
         mngr.New("QueryName", q);
@@ -424,12 +424,12 @@ Y_UNIT_TEST_SUITE(LWTraceTrace) {
         bool parsed = NProtoBuf::TextFormat::ParseFromString(R"END(
             PerThreadLogSize: 3
             Blocks {
-                ProbeDesc {
+                ProbeDesc { 
                     Name: "IntParam"
                     Provider: "LWTRACE_UT_PROVIDER"
                 }
                 Action {
-                    LogAction { }
+                    LogAction { } 
                 }
             }
         )END", &q);
@@ -501,7 +501,7 @@ Y_UNIT_TEST_SUITE(LWTraceTrace) {
         TQuery q;
         bool parsed = NProtoBuf::TextFormat::ParseFromString(R"END(
             Blocks {
-                ProbeDesc {
+                ProbeDesc { 
                     Name: "NoParam"
                     Provider: "LWTRACE_UT_PROVIDER"
                 }
@@ -521,7 +521,7 @@ Y_UNIT_TEST_SUITE(LWTraceTrace) {
         TQuery q;
         bool parsed = NProtoBuf::TextFormat::ParseFromString(R"END(
             Blocks {
-                ProbeDesc {
+                ProbeDesc { 
                     Name: "NoParam"
                     Provider: "LWTRACE_UT_PROVIDER"
                 }
@@ -539,7 +539,7 @@ Y_UNIT_TEST_SUITE(LWTraceTrace) {
         TInstant t0 = Now();
         LWPROBE(NoParam);
         TInstant t1 = Now();
-        UNIT_ASSERT(t1.NanoSeconds() - t0.NanoSeconds() >= sleepTimeNs);
+        UNIT_ASSERT(t1.NanoSeconds() - t0.NanoSeconds() >= sleepTimeNs); 
     }
 
     Y_UNIT_TEST(ProtoEnumTraits) {
@@ -550,37 +550,37 @@ Y_UNIT_TEST_SUITE(LWTraceTrace) {
     }
 
     Y_UNIT_TEST(Track) {
-        TManager mngr(*Singleton<TProbeRegistry>(), true);
-        TQuery q;
-        bool parsed = NProtoBuf::TextFormat::ParseFromString(R"END(
-            Blocks {
-                ProbeDesc {
-                    Name: "IntParam"
-                    Provider: "LWTRACE_UT_PROVIDER"
-                }
-                Action {
-                    RunLogShuttleAction { }
-                }
-            }
+        TManager mngr(*Singleton<TProbeRegistry>(), true); 
+        TQuery q; 
+        bool parsed = NProtoBuf::TextFormat::ParseFromString(R"END( 
+            Blocks { 
+                ProbeDesc { 
+                    Name: "IntParam" 
+                    Provider: "LWTRACE_UT_PROVIDER" 
+                } 
+                Action { 
+                    RunLogShuttleAction { } 
+                } 
+            } 
         )END", &q);
-        UNIT_ASSERT(parsed);
-        mngr.New("Query1", q);
-
-        {
-            TOrbit orbit;
-            LWTRACK(IntParam, orbit, 1);
-            LWTRACK(StringParam, orbit, "str");
-        }
-
-        struct {
-            void Push(TThread::TId, const TTrackLog& tl) {
-                UNIT_ASSERT(tl.Items.size() == 2);
-                UNIT_ASSERT(TString(tl.Items[0].Probe->Event.Name) == "IntParam");
-                UNIT_ASSERT(TString(tl.Items[1].Probe->Event.Name) == "StringParam");
-            }
-        } reader;
-        mngr.ReadDepot("Query1", reader);
-    }
+        UNIT_ASSERT(parsed); 
+        mngr.New("Query1", q); 
+ 
+        { 
+            TOrbit orbit; 
+            LWTRACK(IntParam, orbit, 1); 
+            LWTRACK(StringParam, orbit, "str"); 
+        } 
+ 
+        struct { 
+            void Push(TThread::TId, const TTrackLog& tl) { 
+                UNIT_ASSERT(tl.Items.size() == 2); 
+                UNIT_ASSERT(TString(tl.Items[0].Probe->Event.Name) == "IntParam"); 
+                UNIT_ASSERT(TString(tl.Items[1].Probe->Event.Name) == "StringParam"); 
+            } 
+        } reader; 
+        mngr.ReadDepot("Query1", reader); 
+    } 
 
     Y_UNIT_TEST(ShouldSerializeTracks)
     {
@@ -877,4 +877,4 @@ Y_UNIT_TEST_SUITE(LWTraceTrace) {
         mngr.ReadDepot("Query1", reader);
     }
 #endif // LWTRACE_DISABLE
-}
+} 
diff --git a/library/cpp/lwtrace/ut/ya.make b/library/cpp/lwtrace/ut/ya.make
index f43118bab7..03599cad26 100644
--- a/library/cpp/lwtrace/ut/ya.make
+++ b/library/cpp/lwtrace/ut/ya.make
@@ -1,11 +1,11 @@
 UNITTEST_FOR(library/cpp/lwtrace)
-
-OWNER(serxa)
-
-FORK_SUBTESTS()
-
-SRCS(
-    trace_ut.cpp
-)
-
-END()
+ 
+OWNER(serxa) 
+ 
+FORK_SUBTESTS() 
+ 
+SRCS( 
+    trace_ut.cpp 
+) 
+ 
+END() 
diff --git a/library/cpp/lwtrace/ya.make b/library/cpp/lwtrace/ya.make
index d9accb3006..3f19aa1973 100644
--- a/library/cpp/lwtrace/ya.make
+++ b/library/cpp/lwtrace/ya.make
@@ -1,25 +1,25 @@
 LIBRARY()
 
-OWNER(serxa)
+OWNER(serxa) 
 
-PEERDIR(
+PEERDIR( 
     library/cpp/lwtrace/protos
-)
-
+) 
+ 
 SRCS(
-    check.cpp
+    check.cpp 
     control.cpp
-    custom_action.cpp
+    custom_action.cpp 
     kill_action.cpp
     log_shuttle.cpp
-    perf.cpp
-    probes.cpp
-    shuttle.cpp
+    perf.cpp 
+    probes.cpp 
+    shuttle.cpp 
     sleep_action.cpp
-    start.cpp
-    stderr_writer.cpp
-    symbol.cpp
-    trace.cpp
+    start.cpp 
+    stderr_writer.cpp 
+    symbol.cpp 
+    trace.cpp 
 )
 
 END()
diff --git a/library/cpp/monlib/counters/counters.cpp b/library/cpp/monlib/counters/counters.cpp
index 50dca4c577..6ea370e081 100644
--- a/library/cpp/monlib/counters/counters.cpp
+++ b/library/cpp/monlib/counters/counters.cpp
@@ -21,7 +21,7 @@ namespace NMonitoring {
         if (i == 0 || i >= imax)
             *buf = '\0';
         else
-            snprintf(buf, size, "%" PRId64 ".%" PRId64 "%c", major, minor, shorts[i]);
+            snprintf(buf, size, "%" PRId64 ".%" PRId64 "%c", major, minor, shorts[i]); 
 
         return buf;
     }
@@ -32,18 +32,18 @@ namespace NMonitoring {
             buf[0] = 0;
             return buf;
         }
-        PrettyNumShort(val, buf + 2, size - 3);
-        if (buf[2] == 0) {
-            *buf = '\0';
-        } else {
+        PrettyNumShort(val, buf + 2, size - 3); 
+        if (buf[2] == 0) { 
+            *buf = '\0'; 
+        } else { 
             size_t len = 2 + strnlen(buf + 2, size - 4);
             Y_ASSERT(len < size);
-            buf[0] = ' ';
-            buf[1] = '(';
-            buf[len] = ')';
-            buf[len + 1] = '\0';
-        }
-
-        return buf;
-    }
+            buf[0] = ' '; 
+            buf[1] = '('; 
+            buf[len] = ')'; 
+            buf[len + 1] = '\0'; 
+        } 
+ 
+        return buf; 
+    } 
 }
diff --git a/library/cpp/monlib/dynamic_counters/counters.cpp b/library/cpp/monlib/dynamic_counters/counters.cpp
index 3635d87d0d..b4ee2942aa 100644
--- a/library/cpp/monlib/dynamic_counters/counters.cpp
+++ b/library/cpp/monlib/dynamic_counters/counters.cpp
@@ -184,11 +184,11 @@ void TDynamicCounters::RegisterSubgroup(const TString& name, const TString& valu
 }
 
 void TDynamicCounters::OutputHtml(IOutputStream& os) const {
-    HTML(os) {
-        PRE() {
+    HTML(os) { 
+        PRE() { 
             OutputPlainText(os);
-        }
-    }
+        } 
+    } 
 }
 
 void TDynamicCounters::EnumerateSubgroups(const std::function<void(const TString& name, const TString& value)>& output) const {
diff --git a/library/cpp/monlib/dynamic_counters/page.cpp b/library/cpp/monlib/dynamic_counters/page.cpp
index 5124a47bb3..6fc7719a48 100644
--- a/library/cpp/monlib/dynamic_counters/page.cpp
+++ b/library/cpp/monlib/dynamic_counters/page.cpp
@@ -107,15 +107,15 @@ void TDynamicCountersPage::HandleAbsentSubgroup(IMonHttpRequest& request) {
 
 void TDynamicCountersPage::BeforePre(IMonHttpRequest& request) {
     IOutputStream& out = request.Output();
-    HTML(out) {
-        DIV() {
+    HTML(out) { 
+        DIV() { 
             out << "<a href='" << request.GetPath() << "/json'>Counters as JSON</a>";
             out << " for <a href='https://wiki.yandex-team.ru/solomon/'>Solomon</a>";
-        }
+        } 
 
         H5() {
             out << "Counters subgroups";
-        }
+        } 
         UL() {
             currentCounters->EnumerateSubgroups([&](const TString& name, const TString& value) {
                 LI() {
@@ -129,7 +129,7 @@ void TDynamicCountersPage::BeforePre(IMonHttpRequest& request) {
         H4() {
             out << "Counters as text";
         }
-    }
+    } 
 }
 
 void TDynamicCountersPage::OutputText(IOutputStream& out, IMonHttpRequest&) {
diff --git a/library/cpp/monlib/service/pages/html_mon_page.cpp b/library/cpp/monlib/service/pages/html_mon_page.cpp
index eb4eb3b66c..fdb9229f04 100644
--- a/library/cpp/monlib/service/pages/html_mon_page.cpp
+++ b/library/cpp/monlib/service/pages/html_mon_page.cpp
@@ -8,10 +8,10 @@ void THtmlMonPage::Output(NMonitoring::IMonHttpRequest& request) {
     IOutputStream& out = request.Output();
 
     out << HTTPOKHTML;
-    HTML(out) {
+    HTML(out) { 
         out << "<!DOCTYPE html>\n";
-        HTML_TAG() {
-            HEAD() {
+        HTML_TAG() { 
+            HEAD() { 
                 if (!!Title) {
                     out << "<title>" << Title << "</title>\n";
                 }
@@ -32,19 +32,19 @@ void THtmlMonPage::Output(NMonitoring::IMonHttpRequest& request) {
                 out << ".narrow-line80 {line-height: 80%}\n";
                 out << ".narrow-line90 {line-height: 90%}\n";
                 out << "</style>\n";
-            }
-            BODY() {
+            } 
+            BODY() { 
                 OutputNavBar(out);
 
-                DIV_CLASS("container") {
+                DIV_CLASS("container") { 
                     if (!!Title) {
                         out << "<h2>" << Title << "</h2>";
                     }
                     OutputContent(request);
-                }
-            }
-        }
-    }
+                } 
+            } 
+        } 
+    } 
 }
 
 void THtmlMonPage::NotFound(NMonitoring::IMonHttpRequest& request) const {
diff --git a/library/cpp/monlib/service/pages/mon_page.h b/library/cpp/monlib/service/pages/mon_page.h
index e396612bb0..4e244b292d 100644
--- a/library/cpp/monlib/service/pages/mon_page.h
+++ b/library/cpp/monlib/service/pages/mon_page.h
@@ -29,7 +29,7 @@ namespace NMonitoring {
     // Images
     static const char HTTPOKPNG[] = "HTTP/1.1 200 Ok\r\nContent-Type: image/png\r\nConnection: Close\r\n\r\n";
     static const char HTTPOKSVG[] = "HTTP/1.1 200 Ok\r\nContent-Type: image/svg+xml\r\nConnection: Close\r\n\r\n";
-
+ 
     class IMonPage;
 
     using TMonPagePtr = TIntrusivePtr<IMonPage>;
diff --git a/library/cpp/monlib/service/pages/resource_mon_page.cpp b/library/cpp/monlib/service/pages/resource_mon_page.cpp
index ec4ac6a1a7..5571b70575 100644
--- a/library/cpp/monlib/service/pages/resource_mon_page.cpp
+++ b/library/cpp/monlib/service/pages/resource_mon_page.cpp
@@ -17,27 +17,27 @@ void TResourceMonPage::Output(NMonitoring::IMonHttpRequest& request) {
         case JAVASCRIPT:
             out << HTTPOKJAVASCRIPT;
             break;
-        case FONT_EOT:
-            out << HTTPOKFONTEOT;
-            break;
-        case FONT_TTF:
-            out << HTTPOKFONTTTF;
-            break;
-        case FONT_WOFF:
-            out << HTTPOKFONTWOFF;
-            break;
-        case FONT_WOFF2:
-            out << HTTPOKFONTWOFF2;
-            break;
-        case PNG:
-            out << HTTPOKPNG;
-            break;
-        case SVG:
-            out << HTTPOKSVG;
-            break;
+        case FONT_EOT: 
+            out << HTTPOKFONTEOT; 
+            break; 
+        case FONT_TTF: 
+            out << HTTPOKFONTTTF; 
+            break; 
+        case FONT_WOFF: 
+            out << HTTPOKFONTWOFF; 
+            break; 
+        case FONT_WOFF2: 
+            out << HTTPOKFONTWOFF2; 
+            break; 
+        case PNG: 
+            out << HTTPOKPNG; 
+            break; 
+        case SVG: 
+            out << HTTPOKSVG; 
+            break; 
         default:
             out << HTTPOKBIN;
-            break;
+            break; 
     }
     out << NResource::Find(ResourceName);
 }
diff --git a/library/cpp/monlib/service/pages/resource_mon_page.h b/library/cpp/monlib/service/pages/resource_mon_page.h
index f6ab67200e..aecb83c7be 100644
--- a/library/cpp/monlib/service/pages/resource_mon_page.h
+++ b/library/cpp/monlib/service/pages/resource_mon_page.h
@@ -18,11 +18,11 @@ namespace NMonitoring {
             FONT_TTF,
             FONT_WOFF,
             FONT_WOFF2,
-
+ 
             PNG,
             SVG
         };
-
+ 
         TResourceMonPage(const TString& path, const TString& resourceName,
                          const EResourceType& resourceType = BINARY)
             : IMonPage(path, "")
diff --git a/library/cpp/monlib/service/pages/templates.h b/library/cpp/monlib/service/pages/templates.h
index b4656f059f..4a96171f7c 100644
--- a/library/cpp/monlib/service/pages/templates.h
+++ b/library/cpp/monlib/service/pages/templates.h
@@ -1,11 +1,11 @@
 #pragma once
 
 #include <util/stream/output.h>
-#include <util/system/defaults.h>
+#include <util/system/defaults.h> 
 
-#define WITH_SCOPED(var, value) WITH_SCOPED_I(var, value, Y_GENERATE_UNIQUE_ID(WITH_SCOPED_LABEL_))
+#define WITH_SCOPED(var, value) WITH_SCOPED_I(var, value, Y_GENERATE_UNIQUE_ID(WITH_SCOPED_LABEL_)) 
 
-#define WITH_SCOPED_I(var, value, label) \
+#define WITH_SCOPED_I(var, value, label) \ 
     if (auto var = (value)) {              \
         Y_UNUSED(var);                   \
         goto label;                      \
@@ -27,12 +27,12 @@
 #define HTML_TAG() TAG(THtml)
 #define DIV() TAG(TDiv)
 #define DIV_CLASS(cls) TAG_CLASS(TDiv, cls)
-#define DIV_CLASS_ID(cls, id) TAG_CLASS_ID(TDiv, cls, id)
+#define DIV_CLASS_ID(cls, id) TAG_CLASS_ID(TDiv, cls, id) 
 #define PRE() TAG(TPre)
 #define TABLE() TAG(TTable)
 #define TABLE_CLASS(cls) TAG_CLASS(TTable, cls)
 #define TABLE_SORTABLE() TABLE_CLASS("table-sortable")
-#define TABLE_SORTABLE_CLASS(cls) TABLE_CLASS(cls " table-sortable")
+#define TABLE_SORTABLE_CLASS(cls) TABLE_CLASS(cls " table-sortable") 
 #define TABLEHEAD() TAG(TTableHead)
 #define TABLEHEAD_CLASS(cls) TAG_CLASS(TTableHead, cls)
 #define TABLEBODY() TAG(TTableBody)
@@ -48,9 +48,9 @@
 #define FORM_CLASS(cls) TAG_CLASS(TFormC, cls)
 #define LABEL() TAG(TLabelC)
 #define LABEL_CLASS(cls) TAG_CLASS(TLabelC, cls)
-#define LABEL_CLASS_FOR(cls, for0) TAG_CLASS_FOR(TLabelC, cls, for0)
+#define LABEL_CLASS_FOR(cls, for0) TAG_CLASS_FOR(TLabelC, cls, for0) 
 #define SPAN_CLASS(cls) TAG_CLASS(TSpanC, cls)
-#define SPAN_CLASS_STYLE(cls, style) TAG_CLASS_STYLE(TSpanC, cls, style)
+#define SPAN_CLASS_STYLE(cls, style) TAG_CLASS_STYLE(TSpanC, cls, style) 
 
 #define PARA() TAG(TPara)
 #define PARA_CLASS(cls) TAG_CLASS(TPara, cls)
@@ -87,12 +87,12 @@
 
 #define CAPTION() TAG(TCaption)
 #define CAPTION_CLASS(cls) CAPTION_CLASS(TCaption, cls)
-
+ 
 #define HTML_OUTPUT_PARAM(str, param) str << #param << ": " << param << "<br/>"
 #define HTML_OUTPUT_TIME_PARAM(str, param) str << #param << ": " << ToStringLocalTimeUpToSeconds(param) << "<br/>"
 
-#define COLLAPSED_BUTTON_CONTENT(targetId, buttonText) \
-    WITH_SCOPED(tmp, NMonitoring::TCollapsedButton(__stream, targetId, buttonText))
+#define COLLAPSED_BUTTON_CONTENT(targetId, buttonText) \ 
+    WITH_SCOPED(tmp, NMonitoring::TCollapsedButton(__stream, targetId, buttonText)) 
 
 #define HREF(path) \
     WITH_SCOPED(tmp, NMonitoring::THref(__stream, path))
@@ -156,10 +156,10 @@ namespace NMonitoring {
             }
         }
 
-        explicit inline operator bool() const noexcept {
-            return true; // just to work with WITH_SCOPED
-        }
-
+        explicit inline operator bool() const noexcept { 
+            return true; // just to work with WITH_SCOPED 
+        } 
+ 
         IOutputStream& Str;
     };
 
@@ -180,30 +180,30 @@ namespace NMonitoring {
             }
         }
 
-        explicit inline operator bool() const noexcept {
-            return true; // just to work with WITH_SCOPED
-        }
-
+        explicit inline operator bool() const noexcept { 
+            return true; // just to work with WITH_SCOPED 
+        } 
+ 
         IOutputStream& Str;
     };
 
-    struct TOutputStreamRef {
+    struct TOutputStreamRef { 
         TOutputStreamRef(IOutputStream& str)
-            : Str(str)
+            : Str(str) 
         {
         }
-
+ 
         inline operator IOutputStream&() noexcept {
-            return Str;
-        }
-
-        explicit inline operator bool() const noexcept {
-            return true; // just to work with WITH_SCOPED
-        }
-
+            return Str; 
+        } 
+ 
+        explicit inline operator bool() const noexcept { 
+            return true; // just to work with WITH_SCOPED 
+        } 
+ 
         IOutputStream& Str;
-    };
-
+    }; 
+ 
     extern const char HtmlTag[5];
     extern const char HeadTag[5];
     extern const char BodyTag[5];
diff --git a/library/cpp/scheme/scheme.h b/library/cpp/scheme/scheme.h
index 3d7c59f3c9..cfbb61580d 100644
--- a/library/cpp/scheme/scheme.h
+++ b/library/cpp/scheme/scheme.h
@@ -387,7 +387,7 @@ namespace NSc {
 
         static TValue From(const ::google::protobuf::Message&, bool mapAsDict = false);
 
-        void To(::google::protobuf::Message&, const TProtoOpts& opts = {}) const;
+        void To(::google::protobuf::Message&, const TProtoOpts& opts = {}) const; 
 
     public:
         inline explicit TValue(TPoolPtr&);
@@ -421,11 +421,11 @@ namespace NSc {
         static TValue FromField(const ::google::protobuf::Message&, const ::google::protobuf::FieldDescriptor*);
         static TValue FromRepeatedField(const ::google::protobuf::Message&, const ::google::protobuf::FieldDescriptor*, int index);
 
-        void ValueToField(const TValue& value, ::google::protobuf::Message&, const ::google::protobuf::FieldDescriptor*, const TProtoOpts& opts) const;
-        void ToField(::google::protobuf::Message&, const ::google::protobuf::FieldDescriptor*, const TProtoOpts& opts) const;
-        void ToEnumField(::google::protobuf::Message&, const ::google::protobuf::FieldDescriptor*, const TProtoOpts& opts) const;
-        void ToRepeatedField(::google::protobuf::Message&, const ::google::protobuf::FieldDescriptor*, const TProtoOpts& opts) const;
-        void ToMapField(::google::protobuf::Message&, const ::google::protobuf::FieldDescriptor*, const TProtoOpts& opts) const;
+        void ValueToField(const TValue& value, ::google::protobuf::Message&, const ::google::protobuf::FieldDescriptor*, const TProtoOpts& opts) const; 
+        void ToField(::google::protobuf::Message&, const ::google::protobuf::FieldDescriptor*, const TProtoOpts& opts) const; 
+        void ToEnumField(::google::protobuf::Message&, const ::google::protobuf::FieldDescriptor*, const TProtoOpts& opts) const; 
+        void ToRepeatedField(::google::protobuf::Message&, const ::google::protobuf::FieldDescriptor*, const TProtoOpts& opts) const; 
+        void ToMapField(::google::protobuf::Message&, const ::google::protobuf::FieldDescriptor*, const TProtoOpts& opts) const; 
     };
 
 
diff --git a/library/cpp/scheme/scimpl_defs.h b/library/cpp/scheme/scimpl_defs.h
index f3dd66b437..8937b75837 100644
--- a/library/cpp/scheme/scimpl_defs.h
+++ b/library/cpp/scheme/scimpl_defs.h
@@ -117,14 +117,14 @@ namespace NSc {
         }
     };
 
-    struct TProtoOpts {
-        // Serialization throws on unknown enum value if not set, else use default value
-        bool UnknownEnumValueIsDefault = false;
-
-        // Serialization throws on type mismatch if not set, else leaves protobuf empty
-        bool SkipTypeMismatch = false;
-    };
-
+    struct TProtoOpts { 
+        // Serialization throws on unknown enum value if not set, else use default value 
+        bool UnknownEnumValueIsDefault = false; 
+ 
+        // Serialization throws on type mismatch if not set, else leaves protobuf empty 
+        bool SkipTypeMismatch = false; 
+    }; 
+ 
     namespace NImpl {
         class TKeySortContext;
         class TSelfLoopContext;
diff --git a/library/cpp/scheme/scimpl_protobuf.cpp b/library/cpp/scheme/scimpl_protobuf.cpp
index 0c99122c69..190449effa 100644
--- a/library/cpp/scheme/scimpl_protobuf.cpp
+++ b/library/cpp/scheme/scimpl_protobuf.cpp
@@ -129,7 +129,7 @@ namespace NSc {
         return v;
     }
 
-    void TValue::To(Message& msg, const TProtoOpts& opts) const {
+    void TValue::To(Message& msg, const TProtoOpts& opts) const { 
         msg.Clear();
 
         if (IsNull()) {
@@ -144,16 +144,16 @@ namespace NSc {
         for (int i = 0, count = descriptor->field_count(); i < count; ++i) {
             const FieldDescriptor* field = descriptor->field(i);
             if (field->is_map()) {
-                ToMapField(msg, field, opts);
+                ToMapField(msg, field, opts); 
             } else if (field->is_repeated()) {
-                ToRepeatedField(msg, field, opts);
+                ToRepeatedField(msg, field, opts); 
             } else {
-                ToField(msg, field, opts);
+                ToField(msg, field, opts); 
             }
         }
     }
 
-    void TValue::ValueToField(const TValue& value, Message& msg, const FieldDescriptor* field, const TProtoOpts& opts) const {
+    void TValue::ValueToField(const TValue& value, Message& msg, const FieldDescriptor* field, const TProtoOpts& opts) const { 
         const TString& name = field->name();
         if (value.IsNull()) {
             if (field->is_required() && !field->has_default_value()) {
@@ -190,10 +190,10 @@ namespace NSc {
                 reflection->SetString(&msg, field, value.ForceString());
                 break;
             case FieldDescriptor::CPPTYPE_ENUM:
-                value.ToEnumField(msg, field, opts);
+                value.ToEnumField(msg, field, opts); 
                 break;
             case FieldDescriptor::CPPTYPE_MESSAGE:
-                value.To(*reflection->MutableMessage(&msg, field), opts);
+                value.To(*reflection->MutableMessage(&msg, field), opts); 
                 break;
             default:
                 ythrow TSchemeException()
@@ -202,13 +202,13 @@ namespace NSc {
         }
     }
 
-    void TValue::ToField(Message& msg, const FieldDescriptor* field, const TProtoOpts& opts) const {
+    void TValue::ToField(Message& msg, const FieldDescriptor* field, const TProtoOpts& opts) const { 
         const TString& name = field->name();
         const TValue& value = Get(name);
-        ValueToField(value, msg, field, opts);
+        ValueToField(value, msg, field, opts); 
     }
 
-    void TValue::ToEnumField(Message& msg, const FieldDescriptor* field, const TProtoOpts& opts) const {
+    void TValue::ToEnumField(Message& msg, const FieldDescriptor* field, const TProtoOpts& opts) const { 
         const EnumDescriptor* enumField = field->enum_type();
 
         const EnumValueDescriptor* enumFieldValue = IsString()
@@ -216,11 +216,11 @@ namespace NSc {
                                                         : enumField->FindValueByNumber(ForceIntNumber());
 
         if (!enumFieldValue) {
-            if (opts.UnknownEnumValueIsDefault) {
-                enumFieldValue = field->default_value_enum();
-            } else {
-                ythrow TSchemeException() << "invalid value of enum field " << field->name();
-            }
+            if (opts.UnknownEnumValueIsDefault) { 
+                enumFieldValue = field->default_value_enum(); 
+            } else { 
+                ythrow TSchemeException() << "invalid value of enum field " << field->name(); 
+            } 
         }
 
         const Reflection* reflection = msg.GetReflection();
@@ -232,7 +232,7 @@ namespace NSc {
         }
     }
 
-    void TValue::ToRepeatedField(Message& msg, const FieldDescriptor* field, const TProtoOpts& opts) const {
+    void TValue::ToRepeatedField(Message& msg, const FieldDescriptor* field, const TProtoOpts& opts) const { 
         const TString& name = field->name();
 
         const TValue& fieldValue = Get(name);
@@ -241,11 +241,11 @@ namespace NSc {
         }
 
         if (!fieldValue.IsArray()) {
-            if (opts.SkipTypeMismatch) {
-                return; // leave repeated field empty
-            } else {
-                ythrow TSchemeException() << "invalid type of repeated field " << name << ": not an array";
-            }
+            if (opts.SkipTypeMismatch) { 
+                return; // leave repeated field empty 
+            } else { 
+                ythrow TSchemeException() << "invalid type of repeated field " << name << ": not an array"; 
+            } 
         }
 
         const Reflection* reflection = msg.GetReflection();
@@ -277,7 +277,7 @@ namespace NSc {
                     reflection->AddString(&msg, field, value.ForceString());
                     break;
                 case FieldDescriptor::CPPTYPE_ENUM:
-                    value.ToEnumField(msg, field, opts);
+                    value.ToEnumField(msg, field, opts); 
                     break;
                 case FieldDescriptor::CPPTYPE_MESSAGE:
                     value.To(*reflection->AddMessage(&msg, field));
@@ -290,7 +290,7 @@ namespace NSc {
         }
     }
 
-    void TValue::ToMapField(Message& msg, const FieldDescriptor* field, const TProtoOpts& opts) const {
+    void TValue::ToMapField(Message& msg, const FieldDescriptor* field, const TProtoOpts& opts) const { 
         const TString& name = field->name();
 
         const TValue& fieldValue = Get(name);
@@ -300,16 +300,16 @@ namespace NSc {
 
         if (fieldValue.IsArray()) {
             // read dict from key, value array
-            ToRepeatedField(msg, field, opts);
+            ToRepeatedField(msg, field, opts); 
             return;
         }
 
         if (!fieldValue.IsDict()) {
-            if (opts.SkipTypeMismatch) {
-                return; // leave map field empty
-            } else {
-                ythrow TSchemeException() << "invalid type of map field " << name << ": not dict or array";
-            }
+            if (opts.SkipTypeMismatch) { 
+                return; // leave map field empty 
+            } else { 
+                ythrow TSchemeException() << "invalid type of map field " << name << ": not dict or array"; 
+            } 
         }
 
         const Reflection* reflection = msg.GetReflection();
@@ -322,7 +322,7 @@ namespace NSc {
             auto valueField = entryDesc->FindFieldByNumber(2);
             auto entryReflection = entry->GetReflection();
             entryReflection->SetString(entry.Get(), keyField, TString(value.first));
-            ValueToField(value.second, *entry, valueField, opts);
+            ValueToField(value.second, *entry, valueField, opts); 
             mutableField.Add(*entry);
         }
     }
diff --git a/ydb/core/base/blobstorage.h b/ydb/core/base/blobstorage.h
index a2faee326e..86568f8d47 100644
--- a/ydb/core/base/blobstorage.h
+++ b/ydb/core/base/blobstorage.h
@@ -538,7 +538,7 @@ struct TEvBlobStorage {
         EvChunkWrite,
         EvHarakiri,
         EvCheckSpace,
-        EvConfigureScheduler,
+        EvConfigureScheduler, 
         EvYardControl,
         EvCutLog,
         EvIPDiskGet,                                            /// 268 636 170
@@ -588,7 +588,7 @@ struct TEvBlobStorage {
         EvVDiskRequestCompleted,
         EvFrontRecoveryStatus,
         EvPruneQueue,
-        EvPDiskFairSchedulerWake,
+        EvPDiskFairSchedulerWake, 
         EvVDiskGuidObtained,
         EvCompactionFinished,
         EvKickEmergencyPutQueue,                                /// 268 636 220
@@ -680,7 +680,7 @@ struct TEvBlobStorage {
         EvChunkWriteResult,
         EvHarakiriResult,
         EvCheckSpaceResult,
-        EvConfigureSchedulerResult,
+        EvConfigureSchedulerResult, 
         EvYardControlResult,
         EvIPDiskGetResult,
         EvSyncLogSnapshotResult,                                /// 268 636 682
diff --git a/ydb/core/base/grpc_service_factory.h b/ydb/core/base/grpc_service_factory.h
index 0ae4fd9dd8..675a436b0b 100644
--- a/ydb/core/base/grpc_service_factory.h
+++ b/ydb/core/base/grpc_service_factory.h
@@ -1,13 +1,13 @@
 #pragma once
 
-#include <library/cpp/grpc/server/grpc_server.h>
-
+#include <library/cpp/grpc/server/grpc_server.h> 
+ 
 namespace NKikimr {
 
-// Parameterize YDB binary with grpc services registry
-class TGrpcServiceFactory {
-private:
-    using TServicePtr = TIntrusivePtr<NGrpc::IGRpcService>;
+// Parameterize YDB binary with grpc services registry 
+class TGrpcServiceFactory { 
+private: 
+    using TServicePtr = TIntrusivePtr<NGrpc::IGRpcService>; 
     using TFactoryMethod = std::function<
             TServicePtr(
                 NActors::TActorSystem*,
@@ -31,8 +31,8 @@ private:
 private:
     std::unordered_map<TString, std::vector<TServiceParams>> Registry;
 
-public:
-    template <class TService>
+public: 
+    template <class TService> 
     void Register(
         const TString& name,
         bool enableByDefault = false,
@@ -43,15 +43,15 @@ public:
             TIntrusivePtr<NMonitoring::TDynamicCounters> counters,
             NActors::TActorId grpcRequestProxyId
         ) {
-            return TServicePtr(new TService(actorSystem, counters, grpcRequestProxyId));
+            return TServicePtr(new TService(actorSystem, counters, grpcRequestProxyId)); 
         };
         Registry[name].emplace_back(
             method,
             enableByDefault,
             grpcRequestProxyIdForService
         );
-    }
-
+    } 
+ 
     std::vector<TServicePtr> Create(
         const std::unordered_set<TString>& enabled,
         const std::unordered_set<TString>& disabled,
@@ -59,24 +59,24 @@ public:
         TIntrusivePtr<NMonitoring::TDynamicCounters> counters,
         NActors::TActorId grpcRequestProxyId
     ) {
-        std::vector<TServicePtr> services;
-        for (const auto& [name, methods] : Registry) {
+        std::vector<TServicePtr> services; 
+        for (const auto& [name, methods] : Registry) { 
             for (const auto& [method, enableByDefault, grpcRequestProxyIdForService] : methods) {
-                if (!disabled.count(name) && (enabled.count(name) || enableByDefault)) {
+                if (!disabled.count(name) && (enabled.count(name) || enableByDefault)) { 
                     services.emplace_back(method(
                         actorSystem,
                         counters,
                         grpcRequestProxyIdForService.value_or(grpcRequestProxyId)
                     ));
-                }
-            }
-        }
-        return services;
-    }
-
-    bool Has(const TString& name) const {
-        return Registry.find(name) != Registry.end();
-    }
-};
-
+                } 
+            } 
+        } 
+        return services; 
+    } 
+ 
+    bool Has(const TString& name) const { 
+        return Registry.find(name) != Registry.end(); 
+    } 
+}; 
+ 
 } // NKikimr
diff --git a/ydb/core/base/quoter.h b/ydb/core/base/quoter.h
index 41a19775bc..502c4abe96 100644
--- a/ydb/core/base/quoter.h
+++ b/ydb/core/base/quoter.h
@@ -3,7 +3,7 @@
 #include "events.h"
 #include <library/cpp/actors/core/event_local.h>
 #include <util/generic/deque.h>
-#include <util/generic/vector.h>
+#include <util/generic/vector.h> 
 #include <ydb/core/util/time_series_vec.h>
 
 namespace NKikimr {
@@ -49,7 +49,7 @@ struct TEvQuota {
             , ResourceId(resourceId)
             , Amount(amount)
             , IsUsedAmount(isUsedAmount)
-        {}
+        {} 
 
         TResourceLeaf(const TString &quoter, const TString &resource, ui64 amount, bool isUsedAmount = false)
             : QuoterId(0)
@@ -58,7 +58,7 @@ struct TEvQuota {
             , Resource(resource)
             , Amount(amount)
             , IsUsedAmount(isUsedAmount)
-        {}
+        {} 
     };
 
     enum class EResourceOperator {
@@ -146,17 +146,17 @@ struct TEvQuota {
         const ui64 Tick;
 
         const double Consumed;
-        const TTimeSeriesMap<double> History;
+        const TTimeSeriesMap<double> History; 
         const ui64 QueueSize;
         const double QueueWeight;
         const double ExpectedRate;
         const double Cap;
 
-        TProxyStat(ui64 id, ui64 tick, double consumed, const TTimeSeriesMap<double>& history, ui64 queueSize, double queueWeight, double rate, double cap)
+        TProxyStat(ui64 id, ui64 tick, double consumed, const TTimeSeriesMap<double>& history, ui64 queueSize, double queueWeight, double rate, double cap) 
             : ResourceId(id)
             , Tick(tick)
             , Consumed(consumed)
-            , History(history)
+            , History(history) 
             , QueueSize(queueSize)
             , QueueWeight(queueWeight)
             , ExpectedRate(rate)
@@ -170,7 +170,7 @@ struct TEvQuota {
         const TDeque<TProxyStat> Stats;
 
         TEvProxyStats(TDeque<TProxyStat> &&stats)
-            : Stats(std::move(stats))
+            : Stats(std::move(stats)) 
         {}
     };
 
diff --git a/ydb/core/base/statestorage_monitoring.cpp b/ydb/core/base/statestorage_monitoring.cpp
index 5bcc3ec67f..6ab657d562 100644
--- a/ydb/core/base/statestorage_monitoring.cpp
+++ b/ydb/core/base/statestorage_monitoring.cpp
@@ -49,52 +49,52 @@ class TStateStorageMonitoringActor : public TActorBootstrapped<TStateStorageMoni
     void Reply(const TString &response, const TActorContext &ctx) {
         TStringStream str;
 
-        HTML(str) {
-            H3() { str << "State Storage";}
-            DIV_CLASS("container") {
-                DIV_CLASS("row") {str << "TabletID: " << TabletID;}
-                DIV_CLASS("row") {str << "Response: " << response;}
-
-                if (ProxyReplyTime.GetValue() != Max<ui64>()) {
-                    DIV_CLASS("row") {str << "Proxy reply time: " << ProxyReplyTime.ToString(); }
-                }
+        HTML(str) { 
+            H3() { str << "State Storage";} 
+            DIV_CLASS("container") { 
+                DIV_CLASS("row") {str << "TabletID: " << TabletID;} 
+                DIV_CLASS("row") {str << "Response: " << response;} 
+
+                if (ProxyReplyTime.GetValue() != Max<ui64>()) { 
+                    DIV_CLASS("row") {str << "Proxy reply time: " << ProxyReplyTime.ToString(); } 
+                } 
 
                 DIV_CLASS("CfgHash") {str << "Config hash: " << SelfConfigContentHash; }
-                DIV_CLASS("row") {str << "&nbsp;";}
-            }
+                DIV_CLASS("row") {str << "&nbsp;";} 
+            } 
 
 
-            TABLE_SORTABLE_CLASS("table") {
-                TABLEHEAD() {
-                    TABLER() {
-                        TABLEH() { str << "NodeId";}
+            TABLE_SORTABLE_CLASS("table") { 
+                TABLEHEAD() { 
+                    TABLER() { 
+                        TABLEH() { str << "NodeId";} 
                         TABLEH() { str << "Leader";}
                         TABLEH() { str << "Followers"; }
-                        TABLEH() { str << "Locked";}
-                        TABLEH() { str << "Generation";}
-                        TABLEH() { str << "Reply time";}
+                        TABLEH() { str << "Locked";} 
+                        TABLEH() { str << "Generation";} 
+                        TABLEH() { str << "Reply time";} 
                         TABLEH() { str << "CfgHash";}
-                    }
-                }
-                TABLEBODY() {
-                    for (auto &replica : ReplicasInfo) {
-                        TABLER() {
-                            TABLED() {str << replica.ActorID.NodeId();}
-                            if (replica.ReplyTime.GetValue() == Max<ui64>()) { // general timeout
+                    } 
+                } 
+                TABLEBODY() { 
+                    for (auto &replica : ReplicasInfo) { 
+                        TABLER() { 
+                            TABLED() {str << replica.ActorID.NodeId();} 
+                            if (replica.ReplyTime.GetValue() == Max<ui64>()) { // general timeout 
                                 TABLED() { str << "timeout";}
                                 TABLED() { str << "-"; }
                                 TABLED() { str << "-"; }
                                 TABLED() { str << "-"; }
                                 TABLED() { str << "-"; }
                                 TABLED() { str << "-"; }
-                            } else if (replica.CurrentGeneration == Max<ui32>()) {
+                            } else if (replica.CurrentGeneration == Max<ui32>()) { 
                                 TABLED() { str << "not available";}
                                 TABLED() { str << "-"; }
                                 TABLED() { str << "-"; }
                                 TABLED() { str << "-"; }
                                 TABLED() { str << "-"; }
                                 TABLED() { str << replica.ConfigContentHash; }
-                            } else {
+                            } else { 
                                 TABLED() {str << replica.CurrentLeader;}
                                 TABLED() {
                                     if (replica.Followers)
@@ -107,12 +107,12 @@ class TStateStorageMonitoringActor : public TActorBootstrapped<TStateStorageMoni
                                 TABLED() { str << replica.CurrentGeneration; }
                                 TABLED() { str << (replica.ReplyTime - ReplicasRequestMoment); }
                                 TABLED() { str << replica.ConfigContentHash; }
-                            }
-                        }
-                    }
-                }
-            }
-        }
+                            } 
+                        } 
+                    } 
+                } 
+            } 
+        } 
 
         ctx.Send(Sender, new NMon::TEvHttpInfoRes(str.Str()));
         return Die(ctx);
diff --git a/ydb/core/blobstorage/base/html.cpp b/ydb/core/blobstorage/base/html.cpp
index 6658530a94..a821b3e103 100644
--- a/ydb/core/blobstorage/base/html.cpp
+++ b/ydb/core/blobstorage/base/html.cpp
@@ -16,11 +16,11 @@ namespace NKikimr {
     };
 
     void THtmlLightSignalRenderer::Output(IOutputStream &str) const {
-        HTML(str) {
-            SPAN_CLASS_STYLE (Lights[Light].first, Lights[Light].second) {
+        HTML(str) { 
+            SPAN_CLASS_STYLE (Lights[Light].first, Lights[Light].second) { 
                 str << Value;
-            }
-        }
+            } 
+        } 
     }
 
 } // NKikimr
diff --git a/ydb/core/blobstorage/base/vdisk_priorities.h b/ydb/core/blobstorage/base/vdisk_priorities.h
index 4c0c9e2ead..6d69b66c00 100644
--- a/ydb/core/blobstorage/base/vdisk_priorities.h
+++ b/ydb/core/blobstorage/base/vdisk_priorities.h
@@ -5,20 +5,20 @@
 namespace NKikimr {
 
     //
-    // Owner scheduler heirarchy:
-    //
+    // Owner scheduler heirarchy: 
+    // 
     // Log   Fresh   Comp
     //    \    |    /        Sync   Fast   Other
     //     B y t e s   Huge  Log    Read   Read   Load   Low
     //            \     |     |      |      |      |    /
     //             P e r - O w n e r - S c h e d u l e r
-    //
+    // 
     namespace NPriRead {
-        constexpr ui8 SyncLog = 0;          // SyncLog: Synclog reads
-        constexpr ui8 HullComp = 1;         // Comp: Background (compaction) read
-        constexpr ui8 HullOnlineRt = 2;     // FastRead: Real-time online reads
-        constexpr ui8 HullOnlineOther = 3;  // OtherRead: Other online reads
-        constexpr ui8 HullLoad = 4;         // Load: Load index
+        constexpr ui8 SyncLog = 0;          // SyncLog: Synclog reads 
+        constexpr ui8 HullComp = 1;         // Comp: Background (compaction) read 
+        constexpr ui8 HullOnlineRt = 2;     // FastRead: Real-time online reads 
+        constexpr ui8 HullOnlineOther = 3;  // OtherRead: Other online reads 
+        constexpr ui8 HullLoad = 4;         // Load: Load index 
         constexpr ui8 HullLow = 5;          // Low: Background User Data reads that 'do not affect other operations'
     } // TPriRead
 
@@ -31,23 +31,23 @@ namespace NKikimr {
 
     } // NPriWrite
 
-    // PDisk internal use only (all goes through fair "Log" queue if necessary)
-    namespace NPriInternal {
+    // PDisk internal use only (all goes through fair "Log" queue if necessary) 
+    namespace NPriInternal { 
         constexpr ui8 LogRead = 11;
         constexpr ui8 LogWrite = 12;
         constexpr ui8 Other = 13;
         constexpr ui8 Trim = 14;
-    } // NPriInternal
-
-    constexpr ui64 BytesSchedulerWeightDefault = 1;
-    constexpr ui64 LogWeightDefault = 1;
+    } // NPriInternal 
+ 
+    constexpr ui64 BytesSchedulerWeightDefault = 1; 
+    constexpr ui64 LogWeightDefault = 1; 
     constexpr ui64 FreshWeightDefault = 2;
-    constexpr ui64 CompWeightDefault = 7;
-    constexpr ui64 SyncLogWeightDefault = 15;
-    constexpr ui64 HugeWeightDefault = 2;
-    constexpr ui64 FastReadWeightDefault =  1;
-    constexpr ui64 OtherReadWeightDefault = 1;
-    constexpr ui64 LoadWeightDefault = 2;
+    constexpr ui64 CompWeightDefault = 7; 
+    constexpr ui64 SyncLogWeightDefault = 15; 
+    constexpr ui64 HugeWeightDefault = 2; 
+    constexpr ui64 FastReadWeightDefault =  1; 
+    constexpr ui64 OtherReadWeightDefault = 1; 
+    constexpr ui64 LoadWeightDefault = 2; 
     constexpr ui64 LowWeightDefault = 1;
 
 } // NKikimr
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy.h b/ydb/core/blobstorage/dsproxy/dsproxy.h
index 27592e971f..070f2734c3 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy.h
+++ b/ydb/core/blobstorage/dsproxy/dsproxy.h
@@ -340,7 +340,7 @@ public:
             ui64 messageCookie = request->Record.GetCookie();
             CountEvent(*request);
             const ui64 cyclesPerUs = NHPTimer::GetCyclesPerSecond() / 1000000;
-            request->Record.MutableTimestamps()->SetSentByDSProxyUs(GetCycleCountFast() / cyclesPerUs);
+            request->Record.MutableTimestamps()->SetSentByDSProxyUs(GetCycleCountFast() / cyclesPerUs); 
             SendToQueue(std::move(request), messageCookie, TraceId.SeparateBranch(), timeStatsEnabled);
         }
     }
@@ -378,7 +378,7 @@ public:
             ui64 messageCookie = request->Record.GetCookie();
             CountEvent(*request);
             const ui64 cyclesPerUs = NHPTimer::GetCyclesPerSecond() / 1000000;
-            request->Record.MutableTimestamps()->SetSentByDSProxyUs(GetCycleCountFast() / cyclesPerUs);
+            request->Record.MutableTimestamps()->SetSentByDSProxyUs(GetCycleCountFast() / cyclesPerUs); 
             TLogoBlobID id = GetBlobId(request);
             TVDiskID vDiskId = VDiskIDFromVDiskID(request->Record.GetVDiskID());
             LWTRACK(DSProxyPutVPutIsSent, request->Orbit, Info->GetFailDomainOrderNumber(vDiskId),
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_blackboard.cpp b/ydb/core/blobstorage/dsproxy/dsproxy_blackboard.cpp
index eb6d8394f0..ffbaf204bc 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_blackboard.cpp
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_blackboard.cpp
@@ -18,7 +18,7 @@ void TBlobState::TState::AddResponseData(ui32 fullSize, ui32 shift, TString &dat
 void TBlobState::TState::AddPartToPut(TString &data) {
     Y_VERIFY(data.size());
     Data.SetMonolith(data);
-    Here.Assign(0, data.size());
+    Here.Assign(0, data.size()); 
 }
 
 
@@ -60,7 +60,7 @@ void TBlobState::MarkBlobReadyToPut(ui8 blobIdx) {
 }
 
 bool TBlobState::Restore(const TBlobStorageGroupInfo &info) {
-    TIntervalVec<i32> fullBlobInterval(0, Id.BlobSize());
+    TIntervalVec<i32> fullBlobInterval(0, Id.BlobSize()); 
     if (fullBlobInterval.IsSubsetOf(Whole.Here)) {
         return true;
     }
@@ -69,7 +69,7 @@ bool TBlobState::Restore(const TBlobStorageGroupInfo &info) {
     ui32 partsPresent = 0;
     for (ui32 i = 0; i < parts; ++i) {
         if (const ui32 partSize = info.Type.PartSize(TLogoBlobID(Id, i + 1))) {
-            if (TIntervalVec<i32>(0, partSize).IsSubsetOf(Parts[i].Here)) {
+            if (TIntervalVec<i32>(0, partSize).IsSubsetOf(Parts[i].Here)) { 
                 ++partsPresent;
             }
         }
@@ -82,7 +82,7 @@ bool TBlobState::Restore(const TBlobStorageGroupInfo &info) {
     partSet.Parts.resize(parts);
     for (ui32 i = 0; i < parts; ++i) {
         if (const ui32 partSize = info.Type.PartSize(TLogoBlobID(Id, i + 1))) {
-            if (TIntervalVec<i32>(0, partSize).IsSubsetOf(Parts[i].Here)) {
+            if (TIntervalVec<i32>(0, partSize).IsSubsetOf(Parts[i].Here)) { 
                 partSet.PartsMask |= (1 << i);
                 TString tmp = TString::Uninitialized(partSize);
                 Parts[i].Data.Read(0, const_cast<char*>(tmp.data()), partSize);
@@ -308,16 +308,16 @@ TString TBlobState::TDiskPart::ToString() const {
 TString TBlobState::TState::ToString() const {
     TStringStream str;
     str << "{Data# " << Data.Print();
-    str << " Here# " << Here.ToString();
-    str << "}";
-    return str.Str();
-}
-
-TString TBlobState::TWholeState::ToString() const {
-    TStringStream str;
-    str << "{Data# " << Data.Print();
-    str << " Here# " << Here.ToString();
-    str << " Needed# " << Needed.ToString();
+    str << " Here# " << Here.ToString(); 
+    str << "}"; 
+    return str.Str(); 
+} 
+ 
+TString TBlobState::TWholeState::ToString() const { 
+    TStringStream str; 
+    str << "{Data# " << Data.Print(); 
+    str << " Here# " << Here.ToString(); 
+    str << " Needed# " << Needed.ToString(); 
     str << " NotHere# " << NotHere.ToString();
     str << "}";
     return str.Str();
@@ -331,10 +331,10 @@ TGroupDiskRequests::TGroupDiskRequests(ui32 disks) {
     DiskRequestsForOrderNumber.resize(disks);
 }
 
-void TGroupDiskRequests::AddGet(const ui32 diskOrderNumber, const TLogoBlobID &id, const TIntervalSet<i32> &intervalSet) {
+void TGroupDiskRequests::AddGet(const ui32 diskOrderNumber, const TLogoBlobID &id, const TIntervalSet<i32> &intervalSet) { 
     Y_VERIFY(diskOrderNumber < DiskRequestsForOrderNumber.size());
     auto &requestsToSend = DiskRequestsForOrderNumber[diskOrderNumber].GetsToSend;
-    for (auto pair: intervalSet) {
+    for (auto pair: intervalSet) { 
         requestsToSend.emplace_back(id, pair.first, pair.second - pair.first);
     }
 }
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_blackboard.h b/ydb/core/blobstorage/dsproxy/dsproxy_blackboard.h
index fe926648a8..96908f57a0 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_blackboard.h
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_blackboard.h
@@ -48,19 +48,19 @@ struct TBlobState {
     };
     struct TState {
         TFragmentedBuffer Data;
-        TIntervalSet<i32> Here;    // Present in the Data buffer
+        TIntervalSet<i32> Here;    // Present in the Data buffer 
 
         void AddResponseData(ui32 fullSize, ui32 shift, TString &data);
         void AddPartToPut(TString &data);
         TString ToString() const;
     };
-    struct TWholeState : TState {
-        TIntervalSet<i32> Needed;  // Requested by the external user
-        TIntervalSet<i32> NotHere; // Requested by the external user, but not present in the Data buffer yet
-        TString ToString() const;
-    };
+    struct TWholeState : TState { 
+        TIntervalSet<i32> Needed;  // Requested by the external user 
+        TIntervalSet<i32> NotHere; // Requested by the external user, but not present in the Data buffer yet 
+        TString ToString() const; 
+    }; 
     struct TDiskPart {
-        TIntervalSet<i32> Requested;
+        TIntervalSet<i32> Requested; 
         ESituation Situation = ESituation::Unknown;
         TString ToString() const;
     };
@@ -72,7 +72,7 @@ struct TBlobState {
     };
 
     TLogoBlobID Id;
-    TWholeState Whole;
+    TWholeState Whole; 
     ESituation WholeSituation = ESituation::Unknown;  // TODO(cthulhu): Use a specially tailored enum here
     TStackVec<TState, TypicalPartsInBlob> Parts;
     TStackVec<TDisk, TypicalDisksInSubring> Disks;
@@ -139,7 +139,7 @@ struct TDiskPutRequest {
 
 struct TDiskRequests {
     TDeque<TDiskGetRequest> GetsToSend;
-    TStackVec<TDiskPutRequest, TypicalPartsInBlob> PutsToSend;
+    TStackVec<TDiskPutRequest, TypicalPartsInBlob> PutsToSend; 
     ui32 FirstUnsentRequestIdx = 0;
     ui32 FirstUnsentPutIdx = 0;
 };
@@ -148,7 +148,7 @@ struct TGroupDiskRequests {
     TStackVec<TDiskRequests, TypicalDisksInGroup> DiskRequestsForOrderNumber;
 
     TGroupDiskRequests(ui32 disks);
-    void AddGet(const ui32 diskOrderNumber, const TLogoBlobID &id, const TIntervalSet<i32> &intervalSet);
+    void AddGet(const ui32 diskOrderNumber, const TLogoBlobID &id, const TIntervalSet<i32> &intervalSet); 
     void AddGet(const ui32 diskOrderNumber, const TLogoBlobID &id, const ui32 shift, const ui32 size);
     void AddPut(const ui32 diskOrderNumber, const TLogoBlobID &id, TString buffer,
         TDiskPutRequest::EPutReason putReason, bool isHandoff, ui8 blobIdx = 0);
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_discover.cpp b/ydb/core/blobstorage/dsproxy/dsproxy_discover.cpp
index 2605a19a2e..0255d1ccb3 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_discover.cpp
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_discover.cpp
@@ -300,7 +300,7 @@ class TBlobStorageGroupDiscoverRequest : public TBlobStorageGroupRequestActor<TB
         Mon->CountDiscoverResponseTime(duration);
         const bool success = result->Status == NKikimrProto::OK;
         WILSON_TRACE_FROM_ACTOR(*TlsActivationContext, *this, &TraceId, EvDiscoverResultSent);
-        LWPROBE(DSProxyRequestDuration, TEvBlobStorage::EvDiscover, 0, duration.SecondsFloat() * 1000.0,
+        LWPROBE(DSProxyRequestDuration, TEvBlobStorage::EvDiscover, 0, duration.SecondsFloat() * 1000.0, 
                 TabletId, Info->GroupID, TLogoBlobID::MaxChannel, "", success);
         SendResponseAndDie(std::move(result));
     }
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_discover_m3dc.cpp b/ydb/core/blobstorage/dsproxy/dsproxy_discover_m3dc.cpp
index a4e48dba76..c2dfa36444 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_discover_m3dc.cpp
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_discover_m3dc.cpp
@@ -655,7 +655,7 @@ public:
 
             Y_VERIFY(!Responded);
             const TDuration duration = TActivationContext::Now() - StartTime;
-            LWPROBE(DSProxyRequestDuration, TEvBlobStorage::EvDiscover, 0, duration.SecondsFloat() * 1000.0,
+            LWPROBE(DSProxyRequestDuration, TEvBlobStorage::EvDiscover, 0, duration.SecondsFloat() * 1000.0, 
                     TabletId, Info->GroupID, TLogoBlobID::MaxChannel, "", true);
             SendResponseAndDie(std::move(response));
             Responded = true;
@@ -668,7 +668,7 @@ public:
         Y_VERIFY(!Responded);
         Y_VERIFY(status != NKikimrProto::OK);
         const TDuration duration = TActivationContext::Now() - StartTime;
-        LWPROBE(DSProxyRequestDuration, TEvBlobStorage::EvDiscover, 0, duration.SecondsFloat() * 1000.0,
+        LWPROBE(DSProxyRequestDuration, TEvBlobStorage::EvDiscover, 0, duration.SecondsFloat() * 1000.0, 
                 TabletId, Info->GroupID, TLogoBlobID::MaxChannel, "", false);
         std::unique_ptr<TEvBlobStorage::TEvDiscoverResult> response(new TEvBlobStorage::TEvDiscoverResult(
                     status, MinGeneration, 0U));
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_get.cpp b/ydb/core/blobstorage/dsproxy/dsproxy_get.cpp
index 9b08b41861..98e67315ff 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_get.cpp
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_get.cpp
@@ -186,7 +186,7 @@ class TBlobStorageGroupGetRequest : public TBlobStorageGroupRequestActor<TBlobSt
         CountEvent(*ev->Get());
 
         const ui64 cyclesPerUs = NHPTimer::GetCyclesPerSecond() / 1000000;
-        ev->Get()->Record.MutableTimestamps()->SetReceivedByDSProxyUs(GetCycleCountFast() / cyclesPerUs);
+        ev->Get()->Record.MutableTimestamps()->SetReceivedByDSProxyUs(GetCycleCountFast() / cyclesPerUs); 
         const NKikimrBlobStorage::TEvVGetResult &record = ev->Get()->Record;
         Y_VERIFY(record.HasStatus());
 
@@ -211,10 +211,10 @@ class TBlobStorageGroupGetRequest : public TBlobStorageGroupRequestActor<TBlobSt
 
         LWPROBE(DSProxyVDiskRequestDuration, TEvBlobStorage::EvVGet, totalSize, tabletId, vdisk.GroupID, channel,
                 Info->GetFailDomainOrderNumber(shortId),
-                GetStartTime(record.GetTimestamps()),
-                GetTotalTimeMs(record.GetTimestamps()),
-                GetVDiskTimeMs(record.GetTimestamps()),
-                GetTotalTimeMs(record.GetTimestamps()) - GetVDiskTimeMs(record.GetTimestamps()),
+                GetStartTime(record.GetTimestamps()), 
+                GetTotalTimeMs(record.GetTimestamps()), 
+                GetVDiskTimeMs(record.GetTimestamps()), 
+                GetTotalTimeMs(record.GetTimestamps()) - GetVDiskTimeMs(record.GetTimestamps()), 
                 NKikimrBlobStorage::EGetHandleClass_Name(GetImpl.GetHandleClass()),
                 NKikimrProto::EReplyStatus_Name(record.GetStatus()));
         Y_VERIFY(record.HasCookie());
@@ -354,7 +354,7 @@ class TBlobStorageGroupGetRequest : public TBlobStorageGroupRequestActor<TBlobSt
         WILSON_TRACE_FROM_ACTOR(*TlsActivationContext, *this, &TraceId, EvVPutResultReceived, MergedNode = std::move(ev->TraceId));
 
         const ui64 cyclesPerUs = NHPTimer::GetCyclesPerSecond() / 1000000;
-        ev->Get()->Record.MutableTimestamps()->SetReceivedByDSProxyUs(GetCycleCountFast() / cyclesPerUs);
+        ev->Get()->Record.MutableTimestamps()->SetReceivedByDSProxyUs(GetCycleCountFast() / cyclesPerUs); 
         const auto &record = ev->Get()->Record;
         const TVDiskID vDiskId = VDiskIDFromVDiskID(record.GetVDiskID());
         TVDiskIdShort shortId(vDiskId);
@@ -368,10 +368,10 @@ class TBlobStorageGroupGetRequest : public TBlobStorageGroupRequestActor<TBlobSt
         ui64 sumBlobSize = SumBlobSize(ev);
         LWPROBE(DSProxyVDiskRequestDuration, TEvBlobStorage::EvVPut, sumBlobSize, blob.TabletID(),
                 Info->GroupID, blob.Channel(), Info->GetFailDomainOrderNumber(shortId),
-                GetStartTime(record.GetTimestamps()),
-                GetTotalTimeMs(record.GetTimestamps()),
-                GetVDiskTimeMs(record.GetTimestamps()),
-                GetTotalTimeMs(record.GetTimestamps()) - GetVDiskTimeMs(record.GetTimestamps()),
+                GetStartTime(record.GetTimestamps()), 
+                GetTotalTimeMs(record.GetTimestamps()), 
+                GetVDiskTimeMs(record.GetTimestamps()), 
+                GetTotalTimeMs(record.GetTimestamps()) - GetVDiskTimeMs(record.GetTimestamps()), 
                 NKikimrBlobStorage::EPutHandleClass_Name(GetImpl.GetPutHandleClass()),
                 NKikimrProto::EReplyStatus_Name(status));
 
@@ -471,7 +471,7 @@ class TBlobStorageGroupGetRequest : public TBlobStorageGroupRequestActor<TBlobSt
         RootCauseTrack.RenderTrack(Orbit);
         LWTRACK(DSProxyGetReply, Orbit);
         evResult->Orbit = std::move(Orbit);
-        LWPROBE(DSProxyRequestDuration, TEvBlobStorage::EvGet, requestSize, duration.SecondsFloat() * 1000.0, tabletId,
+        LWPROBE(DSProxyRequestDuration, TEvBlobStorage::EvGet, requestSize, duration.SecondsFloat() * 1000.0, tabletId, 
                 evResult->GroupId, channel, NKikimrBlobStorage::EGetHandleClass_Name(GetImpl.GetHandleClass()),
                 success);
         return SendResponseAndDie(std::unique_ptr<TEvBlobStorage::TEvGetResult>(evResult.Release()));
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_monactor.cpp b/ydb/core/blobstorage/dsproxy/dsproxy_monactor.cpp
index 96b492c415..dc0044dfe4 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_monactor.cpp
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_monactor.cpp
@@ -83,22 +83,22 @@ public:
         UPDATE_WILSON(Discover)
 
 #define COMPONENT(NAME)                                                          \
-        TABLER() {                                                                 \
-            TABLED() {                                                             \
+        TABLER() {                                                                 \ 
+            TABLED() {                                                             \ 
                 str << #NAME;                                                    \
-            }                                                                    \
-            TABLED() {                                                             \
+            }                                                                    \ 
+            TABLED() {                                                             \ 
                 TString value = ToString(Mon->NAME ## SamplePPM);                 \
                 str << "<input name=\"" #NAME "SamplingRate\" type=\"number\""   \
                     " value=\"" << value << "\" min=\"0\" max=\"1000000\"/>ppm"; \
-            }                                                                    \
-        }
+            }                                                                    \ 
+        } 
 
         TStringStream str;
 
-        HTML(str) {
-            DIV_CLASS("panel panel-info") {
-                DIV_CLASS("panel-heading") {
+        HTML(str) { 
+            DIV_CLASS("panel panel-info") { 
+                DIV_CLASS("panel-heading") { 
                     str << "Group content";
                 }
                 DIV_CLASS("panel-body") {
@@ -162,28 +162,28 @@ public:
             DIV_CLASS("panel panel-info") {
                 DIV_CLASS("panel-heading") {
                     str << "Blob query service";
-                }
-                DIV_CLASS("panel-body") {
-                    FORM_CLASS("form-horizontal") {
-                        DIV_CLASS("control-group") {
-                            LABEL_CLASS_FOR("control-label", "inputBlob") { str << "Blob ID"; }
-                            DIV_CLASS("controls") {
+                } 
+                DIV_CLASS("panel-body") { 
+                    FORM_CLASS("form-horizontal") { 
+                        DIV_CLASS("control-group") { 
+                            LABEL_CLASS_FOR("control-label", "inputBlob") { str << "Blob ID"; } 
+                            DIV_CLASS("controls") { 
                                 str << "<input id=\"inputBlob\" name=\"blob\" type=\"text\"/>";
-                            }
-                        }
+                            } 
+                        } 
                         str << "<input type=\"hidden\" name=\"groupId\" value=\"" << GroupId << "\">";
                         str << "<input type=\"hidden\" name=\"debugInfo\" value=\"" << 1 << "\">";
-                        DIV_CLASS("control-group") {
-                            DIV_CLASS("controls") {
+                        DIV_CLASS("control-group") { 
+                            DIV_CLASS("controls") { 
                                 str << "<button type=\"submit\" formaction=\"/get_blob\" class=\"btn btn-default\">Query</button>";
-                            }
-                        }
-                    }
-                }
-            }
-
-            DIV_CLASS("panel panel-info") {
-                DIV_CLASS("panel-heading") {
+                            } 
+                        } 
+                    } 
+                } 
+            } 
+
+            DIV_CLASS("panel panel-info") { 
+                DIV_CLASS("panel-heading") { 
                     str << "Blob range index query service";
                 }
                 DIV_CLASS("panel-body") {
@@ -219,42 +219,42 @@ public:
             DIV_CLASS("panel panel-info") {
                 DIV_CLASS("panel-heading") {
                     str << "Wilson tuning";
-                }
-                DIV_CLASS("panel-body") {
-                    FORM_CLASS("form-vertical") {
-                        DIV() {
+                } 
+                DIV_CLASS("panel-body") { 
+                    FORM_CLASS("form-vertical") { 
+                        DIV() { 
                             str << "All sampling rates are provided as integer in range [0, 1000000] measured in ppm "
                                 " where 0 means disabled sampling for this kind of request";
-                        }
-                        DIV() {
+                        } 
+                        DIV() { 
                             str << "<b>NOTE</b> do not forget to enable WILSON logger at DEBUG level with 100% sampling"
                                 " at all nodes of the cluster";
-                        }
-                        TABLE_CLASS ("table table-condensed") {
-                            TABLEHEAD() {
-                                TABLER() {
-                                    TABLEH() {
+                        } 
+                        TABLE_CLASS ("table table-condensed") { 
+                            TABLEHEAD() { 
+                                TABLER() { 
+                                    TABLEH() { 
                                         str << "Query type";
-                                    }
-                                    TABLEH() {
+                                    } 
+                                    TABLEH() { 
                                         str << "Sampling rate";
-                                    }
-                                }
-                            }
-                            TABLEBODY() {
+                                    } 
+                                } 
+                            } 
+                            TABLEBODY() { 
                                 COMPONENT(Put)
                                 COMPONENT(Get)
                                 COMPONENT(Discover)
-                            }
-                        }
-                        DIV_CLASS("control-group") {
-                            DIV_CLASS("controls") {
+                            } 
+                        } 
+                        DIV_CLASS("control-group") { 
+                            DIV_CLASS("controls") { 
                                 str << "<button type=\"submit\" class=\"btn btn-default\">Commit</button>";
-                            }
-                        }
-                    }
-                }
-            }
+                            } 
+                        } 
+                    } 
+                } 
+            } 
 
             DIV_CLASS("panel panel-info") {
                 DIV_CLASS("panel-heading") {
@@ -311,7 +311,7 @@ public:
                     }
                 }
             }
-        }
+        } 
 
         Mon->TimeStats.Render(str);
 
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_put.cpp b/ydb/core/blobstorage/dsproxy/dsproxy_put.cpp
index d9e0e2b320..b62ded9586 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_put.cpp
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_put.cpp
@@ -18,9 +18,9 @@ namespace NKikimr {
 struct TEvResume : public TEventLocal<TEvResume, TEvBlobStorage::EvResume> {
     double WilsonSec;
     double AllocateSec;
-    double WaitSec;
-    double SplitSec;
-    size_t Count;
+    double WaitSec; 
+    double SplitSec; 
+    size_t Count; 
     TBatchedVec<TDataPartSet> PartSets;
 };
 
@@ -147,7 +147,7 @@ class TBlobStorageGroupPutRequest : public TBlobStorageGroupRequestActor<TBlobSt
         ResponsesReceived++;
 
         const ui64 cyclesPerUs = NHPTimer::GetCyclesPerSecond() / 1000000;
-        ev->Get()->Record.MutableTimestamps()->SetReceivedByDSProxyUs(GetCycleCountFast() / cyclesPerUs);
+        ev->Get()->Record.MutableTimestamps()->SetReceivedByDSProxyUs(GetCycleCountFast() / cyclesPerUs); 
         const NKikimrBlobStorage::TEvVPutResult &record = ev->Get()->Record;
         const TLogoBlobID blob = LogoBlobIDFromLogoBlobID(record.GetBlobID());
         const TLogoBlobID origBlobId = TLogoBlobID(blob, 0);
@@ -175,10 +175,10 @@ class TBlobStorageGroupPutRequest : public TBlobStorageGroupRequestActor<TBlobSt
 
         LWPROBE(DSProxyVDiskRequestDuration, TEvBlobStorage::EvVPut, blob.BlobSize(), blob.TabletID(),
                 Info->GroupID, blob.Channel(), Info->GetFailDomainOrderNumber(shortId),
-                GetStartTime(record.GetTimestamps()),
-                GetTotalTimeMs(record.GetTimestamps()),
-                GetVDiskTimeMs(record.GetTimestamps()),
-                GetTotalTimeMs(record.GetTimestamps()) - GetVDiskTimeMs(record.GetTimestamps()),
+                GetStartTime(record.GetTimestamps()), 
+                GetTotalTimeMs(record.GetTimestamps()), 
+                GetVDiskTimeMs(record.GetTimestamps()), 
+                GetTotalTimeMs(record.GetTimestamps()) - GetVDiskTimeMs(record.GetTimestamps()), 
                 NKikimrBlobStorage::EPutHandleClass_Name(PutImpl.GetPutHandleClass()),
                 NKikimrProto::EReplyStatus_Name(status));
         if (RootCauseTrack.IsOn) {
@@ -225,11 +225,11 @@ class TBlobStorageGroupPutRequest : public TBlobStorageGroupRequestActor<TBlobSt
         ResponsesReceived++;
 
         const ui64 cyclesPerUs = NHPTimer::GetCyclesPerSecond() / 1000000;
-        ev->Get()->Record.MutableTimestamps()->SetReceivedByDSProxyUs(GetCycleCountFast() / cyclesPerUs);
+        ev->Get()->Record.MutableTimestamps()->SetReceivedByDSProxyUs(GetCycleCountFast() / cyclesPerUs); 
         const NKikimrBlobStorage::TEvVMultiPutResult &record = ev->Get()->Record;
 
         if (TimeStatsEnabled && record.GetMsgQoS().HasExecTimeStats()) {
-            TimeStats.ApplyPut(RequestBytes, record.GetMsgQoS().GetExecTimeStats());
+            TimeStats.ApplyPut(RequestBytes, record.GetMsgQoS().GetExecTimeStats()); 
         }
 
         Y_VERIFY(record.HasVDiskID());
@@ -259,25 +259,25 @@ class TBlobStorageGroupPutRequest : public TBlobStorageGroupRequestActor<TBlobSt
         }
         WaitingVDiskResponseCount[vdisk]--;
 
-        // Trace put request duration
-        if (LWPROBE_ENABLED(DSProxyVDiskRequestDuration)) {
-            for (auto &item : record.GetItems()) {
-                TLogoBlobID blobId = LogoBlobIDFromLogoBlobID(item.GetBlobID());
-                NKikimrProto::EReplyStatus itemStatus = item.GetStatus();
-                LWPROBE(DSProxyVDiskRequestDuration, TEvBlobStorage::EvVMultiPut, blobId.BlobSize(), blobId.TabletID(),
-                        Info->GroupID, blobId.Channel(), Info->GetFailDomainOrderNumber(shortId),
-                        GetStartTime(record.GetTimestamps()),
-                        GetTotalTimeMs(record.GetTimestamps()),
-                        GetVDiskTimeMs(record.GetTimestamps()),
-                        GetTotalTimeMs(record.GetTimestamps()) - GetVDiskTimeMs(record.GetTimestamps()),
-                        NKikimrBlobStorage::EPutHandleClass_Name(PutImpl.GetPutHandleClass()),
-                        NKikimrProto::EReplyStatus_Name(itemStatus));
-            }
-        }
-
-        // Handle put results
+        // Trace put request duration 
+        if (LWPROBE_ENABLED(DSProxyVDiskRequestDuration)) { 
+            for (auto &item : record.GetItems()) { 
+                TLogoBlobID blobId = LogoBlobIDFromLogoBlobID(item.GetBlobID()); 
+                NKikimrProto::EReplyStatus itemStatus = item.GetStatus(); 
+                LWPROBE(DSProxyVDiskRequestDuration, TEvBlobStorage::EvVMultiPut, blobId.BlobSize(), blobId.TabletID(), 
+                        Info->GroupID, blobId.Channel(), Info->GetFailDomainOrderNumber(shortId), 
+                        GetStartTime(record.GetTimestamps()), 
+                        GetTotalTimeMs(record.GetTimestamps()), 
+                        GetVDiskTimeMs(record.GetTimestamps()), 
+                        GetTotalTimeMs(record.GetTimestamps()) - GetVDiskTimeMs(record.GetTimestamps()), 
+                        NKikimrBlobStorage::EPutHandleClass_Name(PutImpl.GetPutHandleClass()), 
+                        NKikimrProto::EReplyStatus_Name(itemStatus)); 
+            } 
+        } 
+ 
+        // Handle put results 
         bool isCauseRegistered = !RootCauseTrack.IsOn;
-        TPutImpl::TPutResultVec putResults;
+        TPutImpl::TPutResultVec putResults; 
         for (auto &item : record.GetItems()) {
             if (!isCauseRegistered) {
                 isCauseRegistered = RootCauseTrack.OnReply(cookie.GetCauseIdx(),
@@ -288,7 +288,7 @@ class TBlobStorageGroupPutRequest : public TBlobStorageGroupRequestActor<TBlobSt
             Y_VERIFY(item.HasStatus());
             Y_VERIFY(item.HasBlobID());
             Y_VERIFY(item.HasCookie());
-            ui64 blobIdx = TBlobCookie(item.GetCookie()).GetBlobIdx();
+            ui64 blobIdx = TBlobCookie(item.GetCookie()).GetBlobIdx(); 
             NKikimrProto::EReplyStatus itemStatus = item.GetStatus();
             TLogoBlobID blobId = LogoBlobIDFromLogoBlobID(item.GetBlobID());
             Y_VERIFY(itemStatus != NKikimrProto::RACE); // we should get RACE for the whole request and handle it in CheckForTermErrors
@@ -370,9 +370,9 @@ class TBlobStorageGroupPutRequest : public TBlobStorageGroupRequestActor<TBlobSt
         ++*Mon->HandoffPartsSent[Min(Mon->HandoffPartsSent.size() - 1, (size_t)PutImpl.GetHandoffPartsSent())];
         ReportedBytes = 0;
         const bool success = (status == NKikimrProto::OK);
-        LWPROBE(DSProxyRequestDuration, TEvBlobStorage::EvPut,
+        LWPROBE(DSProxyRequestDuration, TEvBlobStorage::EvPut, 
                 blobId.BlobSize(),
-                duration.SecondsFloat() * 1000.0,
+                duration.SecondsFloat() * 1000.0, 
                 blobId.TabletID(), Info->GroupID, blobId.Channel(),
                 NKikimrBlobStorage::EPutHandleClass_Name(HandleClass), success);
         ResponsesSent++;
@@ -474,7 +474,7 @@ public:
                 Tactic, NKikimrBlobStorage::EPutHandleClass_Name(HandleClass));
         ReportBytes(ItemsInfo[0].Buffer.capacity() + sizeof(*this));
 
-        RequestBytes = ev->Buffer.size();
+        RequestBytes = ev->Buffer.size(); 
         RequestHandleClass = HandleClassToHandleClass(HandleClass);
         MaxSaneRequests = info->Type.TotalPartCount() * (1ull + info->Type.Handoff()) * 2;
     }
@@ -518,14 +518,14 @@ public:
             if (ev->Get()->Orbit.HasShuttles()) {
                 RootCauseTrack.IsOn = true;
             }
-            ItemsInfo.emplace_back(
+            ItemsInfo.emplace_back( 
                 ev->Get()->Id,
                 ev->Get()->Buffer,
                 ev->Sender,
                 ev->Cookie,
                 std::move(ev->TraceId),
                 std::move(ev->Get()->Orbit)
-            );
+            ); 
             LWPROBE(DSProxyBlobPutTactics, ItemsInfo.back().BlobId.TabletID(), Info->GroupID,
                     ItemsInfo.back().BlobId.ToString(), Tactic, NKikimrBlobStorage::EPutHandleClass_Name(HandleClass));
         }
@@ -557,7 +557,7 @@ public:
             << " RestartCounter# " << RestartCounter);
 
         for (ui64 blobIdx = 0; blobIdx < ItemsInfo.size(); ++blobIdx) {
-            LWTRACK(DSProxyPutBootstrapStart, ItemsInfo[blobIdx].Orbit);
+            LWTRACK(DSProxyPutBootstrapStart, ItemsInfo[blobIdx].Orbit); 
         }
 
         Become(&TThis::StateWait);
@@ -565,7 +565,7 @@ public:
         Timer.Reset();
 
         // TODO: how correct rewrite this?
-        WILSON_TRACE_FROM_ACTOR(*TlsActivationContext, *this, &TraceId, EvPutReceived, Size = RequestBytes,
+        WILSON_TRACE_FROM_ACTOR(*TlsActivationContext, *this, &TraceId, EvPutReceived, Size = RequestBytes, 
                 LogoBlobId = ItemsInfo[0].BlobId);
 
         double wilsonSec = Timer.PassedReset();
@@ -579,7 +579,7 @@ public:
             TLogoBlobID blobId = ItemsInfo[idx].BlobId;
 
             const ui64 partSize = Info->Type.PartSize(blobId);
-            ui64 bufferSize = ItemsInfo[idx].BufferSize;
+            ui64 bufferSize = ItemsInfo[idx].BufferSize; 
 
             char *data = ItemsInfo[idx].Buffer.Detach();
             Encrypt(data, data, 0, bufferSize, blobId, *Info);
@@ -597,11 +597,11 @@ public:
 
         resume->WilsonSec = wilsonSec;
         resume->AllocateSec = allocateSec;
-        resume->WaitSec = 0.0;
-        resume->SplitSec = 0.0;
-        resume->Count = 0;
-        if (RequestBytes < BufferSizeThreshold) {
-            ResumeBootstrap(resume);
+        resume->WaitSec = 0.0; 
+        resume->SplitSec = 0.0; 
+        resume->Count = 0; 
+        if (RequestBytes < BufferSizeThreshold) { 
+            ResumeBootstrap(resume); 
         } else {
             Send(SelfId(), resume.Release());
             for (ui64 blobIdx = 0; blobIdx < ItemsInfo.size(); ++blobIdx) {
@@ -614,13 +614,13 @@ public:
     }
 
     void Handle(TEvResume::TPtr &ev) {
-        if (ev->Get()->Count == 0) {
-            // Record only the first resume to keep tracks structure simple
-            for (ui64 blobIdx = 0; blobIdx < ItemsInfo.size(); ++blobIdx) {
-                LWTRACK(DSProxyPutResumeBootstrap, ItemsInfo[blobIdx].Orbit);
-            }
+        if (ev->Get()->Count == 0) { 
+            // Record only the first resume to keep tracks structure simple 
+            for (ui64 blobIdx = 0; blobIdx < ItemsInfo.size(); ++blobIdx) { 
+                LWTRACK(DSProxyPutResumeBootstrap, ItemsInfo[blobIdx].Orbit); 
+            } 
         }
-        ResumeBootstrap(ev->Release());
+        ResumeBootstrap(ev->Release()); 
         SanityCheck(); // May Die
     }
 
@@ -658,51 +658,51 @@ public:
         }
     }
 
-    void ResumeBootstrap(TAutoPtr<TEvResume> resume) {
+    void ResumeBootstrap(TAutoPtr<TEvResume> resume) { 
         double waitSec = Timer.PassedReset();
-        resume->WaitSec += waitSec;
+        resume->WaitSec += waitSec; 
 
-        Y_VERIFY(ItemsInfo.size() == resume->PartSets.size());
-        bool splitDone = true;
+        Y_VERIFY(ItemsInfo.size() == resume->PartSets.size()); 
+        bool splitDone = true; 
         for (ui64 idx = 0; idx < ItemsInfo.size(); ++idx) {
-            TDataPartSet &partSet = resume->PartSets[idx];
+            TDataPartSet &partSet = resume->PartSets[idx]; 
             TString &buffer = ItemsInfo[idx].Buffer;
             TLogoBlobID blobId = ItemsInfo[idx].BlobId;
-            Info->Type.IncrementalSplitData((TErasureType::ECrcMode)blobId.CrcMode(), buffer, partSet);
-            if (partSet.IsSplitDone()) {
-                ReportBytes(partSet.MemoryConsumed - ItemsInfo[idx].BufferSize);
-            } else {
-                splitDone = false;
-            }
+            Info->Type.IncrementalSplitData((TErasureType::ECrcMode)blobId.CrcMode(), buffer, partSet); 
+            if (partSet.IsSplitDone()) { 
+                ReportBytes(partSet.MemoryConsumed - ItemsInfo[idx].BufferSize); 
+            } else { 
+                splitDone = false; 
+            } 
         }
         double splitSec = Timer.PassedReset();
-        resume->SplitSec += splitSec;
-        resume->Count++;
-        LWPROBE(ProxyPutBootstrapPart, RequestBytes, waitSec * 1000.0, splitSec * 1000.0, resume->Count, resume->SplitSec * 1000.0);
-
-        if (splitDone) {
-            for (ui64 blobIdx = 0; blobIdx < ItemsInfo.size(); ++blobIdx) {
-                LWTRACK(DSProxyPutBootstrapDone, ItemsInfo[blobIdx].Orbit,
-                        RequestBytes, resume->WilsonSec * 1000.0, resume->AllocateSec * 1000.0,
-                        resume->WaitSec * 1000.0, resume->SplitSec * 1000.0, resume->Count, blobIdx);
-            }
-            if (IsMultiPutMode) {
+        resume->SplitSec += splitSec; 
+        resume->Count++; 
+        LWPROBE(ProxyPutBootstrapPart, RequestBytes, waitSec * 1000.0, splitSec * 1000.0, resume->Count, resume->SplitSec * 1000.0); 
+
+        if (splitDone) { 
+            for (ui64 blobIdx = 0; blobIdx < ItemsInfo.size(); ++blobIdx) { 
+                LWTRACK(DSProxyPutBootstrapDone, ItemsInfo[blobIdx].Orbit, 
+                        RequestBytes, resume->WilsonSec * 1000.0, resume->AllocateSec * 1000.0, 
+                        resume->WaitSec * 1000.0, resume->SplitSec * 1000.0, resume->Count, blobIdx); 
+            } 
+            if (IsMultiPutMode) { 
                 TDeque<std::unique_ptr<TEvBlobStorage::TEvVMultiPut>> vMultiPuts;
-                PutImpl.GenerateInitialRequests(LogCtx, resume->PartSets, vMultiPuts);
-                UpdatePengingVDiskResponseCount<TEvBlobStorage::TEvVMultiPut, TVMultiPutCookie>(vMultiPuts);
-                RequestsSent += vMultiPuts.size();
-                CountPuts(vMultiPuts);
-                SendToQueues(vMultiPuts, TimeStatsEnabled);
-            } else {
+                PutImpl.GenerateInitialRequests(LogCtx, resume->PartSets, vMultiPuts); 
+                UpdatePengingVDiskResponseCount<TEvBlobStorage::TEvVMultiPut, TVMultiPutCookie>(vMultiPuts); 
+                RequestsSent += vMultiPuts.size(); 
+                CountPuts(vMultiPuts); 
+                SendToQueues(vMultiPuts, TimeStatsEnabled); 
+            } else { 
                 TDeque<std::unique_ptr<TEvBlobStorage::TEvVPut>> vPuts;
-                PutImpl.GenerateInitialRequests(LogCtx, resume->PartSets, vPuts);
-                UpdatePengingVDiskResponseCount<TEvBlobStorage::TEvVPut, TBlobCookie>(vPuts);
-                RequestsSent += vPuts.size();
-                CountPuts(vPuts);
-                SendToQueues(vPuts, TimeStatsEnabled);
-            }
+                PutImpl.GenerateInitialRequests(LogCtx, resume->PartSets, vPuts); 
+                UpdatePengingVDiskResponseCount<TEvBlobStorage::TEvVPut, TBlobCookie>(vPuts); 
+                RequestsSent += vPuts.size(); 
+                CountPuts(vPuts); 
+                SendToQueues(vPuts, TimeStatsEnabled); 
+            } 
         } else {
-            Send(SelfId(), resume.Release());
+            Send(SelfId(), resume.Release()); 
         }
     }
 
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_put_impl.cpp b/ydb/core/blobstorage/dsproxy/dsproxy_put_impl.cpp
index 70b774636c..e2f9fd8892 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_put_impl.cpp
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_put_impl.cpp
@@ -69,7 +69,7 @@ void TPutImpl::PrepareReply(NKikimrProto::EReplyStatus status, TLogContext &logC
         outPutResults.emplace_back(idx, new TEvBlobStorage::TEvPutResult(status, BlobIds[idx], StatusFlags, Info->GroupID,
                     ApproximateFreeSpaceShare));
         outPutResults.back().second->ErrorReason = errorReason;
-
+ 
         NLog::EPriority priority = GetPriorityForReply(Info->PutErrorMuteChecker, status);
         A_LOG_LOG_SX(logCtx, true, priority, "BPP38",
                 "PrepareReply Result# " << outPutResults.back().second->Print(false));
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_base.cpp b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_base.cpp
index c73c20712e..566c819b28 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_base.cpp
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_base.cpp
@@ -184,7 +184,7 @@ std::optional<EStrategyOutcome> TStrategyBase::ProcessPessimistic(const TBlobSto
 }
 
 void TStrategyBase::AddGetRequest(TLogContext &logCtx, TGroupDiskRequests &groupDiskRequests, TLogoBlobID &fullId,
-        ui32 partIdx, TBlobState::TDisk &disk, TIntervalSet<i32> &intervalSet, const char *logMarker) {
+        ui32 partIdx, TBlobState::TDisk &disk, TIntervalSet<i32> &intervalSet, const char *logMarker) { 
     TLogoBlobID id(fullId, partIdx + 1);
     R_LOG_DEBUG_SX(logCtx, logMarker, "AddGet disk# " << disk.OrderNumber
             << " Id# " << id.ToString()
@@ -287,8 +287,8 @@ void TStrategyBase::PreparePutsForPartPlacement(TLogContext &logCtx, TBlobState
 
     if (!isPartsAvailable) {
         // Prepare new put request set
-        TIntervalVec<i32> fullInterval(0, state.Id.BlobSize());
-        Y_VERIFY(fullInterval.IsSubsetOf(state.Whole.Here),
+        TIntervalVec<i32> fullInterval(0, state.Id.BlobSize()); 
+        Y_VERIFY(fullInterval.IsSubsetOf(state.Whole.Here), 
                 "Can't put unrestored blob! Unexpected blob state# %s", state.ToString().c_str());
 
         TString wholeBuffer = TString::Uninitialized(state.Id.BlobSize());
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_base.h b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_base.h
index ca005dc936..26a53c71f5 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_base.h
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_base.h
@@ -32,7 +32,7 @@ protected:
     std::optional<EStrategyOutcome> ProcessPessimistic(const TBlobStorageGroupInfo &info, TBlobStorageGroupInfo::EBlobState pessimisticState,
             bool doVerify, TBlobState &state);
     void AddGetRequest(TLogContext &logCtx, TGroupDiskRequests &groupDiskRequests, TLogoBlobID &fullId, ui32 partIdx,
-            TBlobState::TDisk &disk, TIntervalSet<i32> &intervalSet, const char *logMarker);
+            TBlobState::TDisk &disk, TIntervalSet<i32> &intervalSet, const char *logMarker); 
     bool VerifyTheWholeSituation(TBlobState &state);
     void PreparePartLayout(const TBlobState &state, const TBlobStorageGroupInfo &info,
             TBlobStorageGroupType::TPartLayout *layout, ui32 slowDiskIdx);
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_bold.h b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_bold.h
index 0ea411ef72..2e49f7a867 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_bold.h
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_bold.h
@@ -57,7 +57,7 @@ public:
                 TBlobState::ESituation partSituation = disk.DiskParts[partIdx].Situation;
                 if (partSituation == TBlobState::ESituation::Unknown ||
                         partSituation == TBlobState::ESituation::Present) {
-                    TIntervalSet<i32> fullPartInterval(0, partSize);
+                    TIntervalSet<i32> fullPartInterval(0, partSize); 
                     fullPartInterval.Subtract(state.Parts[partIdx].Here);
                     fullPartInterval.Subtract(disk.DiskParts[partIdx].Requested);
                     if (!fullPartInterval.IsEmpty()) {
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_m3dc_basic.h b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_m3dc_basic.h
index c6476c941f..4b165fa513 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_m3dc_basic.h
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_m3dc_basic.h
@@ -28,7 +28,7 @@ namespace NKikimr {
             switch (diskPart.Situation) {
                 case TBlobState::ESituation::Unknown: {
                     // get the request -- all the needed parts except already got and already requested
-                    TIntervalSet<i32> request(state.Whole.Needed);
+                    TIntervalSet<i32> request(state.Whole.Needed); 
                     request.Subtract(state.Whole.Here);
                     // remove parts that were already requested, but not yet answered
                     request.Subtract(diskPart.Requested);
@@ -73,10 +73,10 @@ namespace NKikimr {
                 // check if we can obtain some _new_ data from the part
                 if (!part.Here.IsSubsetOf(state.Whole.Here)) {
                     // scan through all the intervals
-                    for (const auto& range : part.Here) {
+                    for (const auto& range : part.Here) { 
                         ui64 begin = range.first;
                         const ui64 end = range.second;
-                        TIntervalVec<i32> interval(begin, end);
+                        TIntervalVec<i32> interval(begin, end); 
                         // check if this interval contains some data which is not in state.Whole.Here
                         if (!interval.IsSubsetOf(state.Whole.Here)) {
                             char buffer[4096];
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_m3dc_restore.h b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_m3dc_restore.h
index 161a1b3f9f..906e29ca40 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_m3dc_restore.h
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_m3dc_restore.h
@@ -71,7 +71,7 @@ namespace NKikimr {
 
     private:
         static void PrepareGets(TLogContext& logCtx, TBlobState& state, TGroupDiskRequests& groupDiskRequests) {
-            const TIntervalVec<i32> needed(0, state.Id.BlobSize()); // we need to query this interval
+            const TIntervalVec<i32> needed(0, state.Id.BlobSize()); // we need to query this interval 
             for (ui32 diskIdx = 0; diskIdx < state.Disks.size(); ++diskIdx) {
                 TBlobState::TDisk& disk = state.Disks[diskIdx];
                 const ui32 partIdx = diskIdx % NumRings;
@@ -112,10 +112,10 @@ namespace NKikimr {
         static void CreateOutputBlob(TBlobState& state) {
             for (const TBlobState::TState& part : state.Parts) {
                 // calculate the interval of the part buffer we have to copy into the output buffer
-                TIntervalSet<i32> dataToAdd(part.Here);
+                TIntervalSet<i32> dataToAdd(part.Here); 
                 dataToAdd.Subtract(state.Whole.Here);
                 state.Whole.Here.Add(dataToAdd);
-                for (const auto& range : dataToAdd) {
+                for (const auto& range : dataToAdd) { 
                     ui32 begin = range.first;
                     const ui32 end = range.second;
                     char buffer[4096];
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_m3of4.h b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_m3of4.h
index 30abbb2687..6aaf39a41a 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_m3of4.h
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_m3of4.h
@@ -128,7 +128,7 @@ namespace NKikimr {
             for (ui32 i = 0; i < totalParts; ++i) {
                 if (const ui32 partSize = info.Type.PartSize(TLogoBlobID(state.Id, i + 1))) {
                     TBlobState::TState& part = state.Parts[i];
-                    if (const TIntervalSet<i32> pending = part.Here & state.Whole.NotHere) {
+                    if (const TIntervalSet<i32> pending = part.Here & state.Whole.NotHere) { 
                         state.Whole.Data.CopyFrom(part.Data, pending);
                         state.Whole.Here |= pending;
                         state.Whole.NotHere -= pending;
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_min_iops_block.h b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_min_iops_block.h
index d191f11006..7b6d2f375a 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_min_iops_block.h
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_min_iops_block.h
@@ -9,18 +9,18 @@ class TMinIopsBlockStrategy : public TStrategyBase {
 public:
     std::optional<EStrategyOutcome> RestoreWholeFromDataParts(TLogContext& /*logCtx*/, TBlobState &state,
             const TBlobStorageGroupInfo &info) {
-        TIntervalSet<i32> missing(state.Whole.NotHere);
+        TIntervalSet<i32> missing(state.Whole.NotHere); 
         TString tmp;
-        for (auto [begin, end] : missing) {
+        for (auto [begin, end] : missing) { 
             TBlockSplitRange range;
-            info.Type.BlockSplitRange((TErasureType::ECrcMode)state.Id.CrcMode(), state.Id.BlobSize(), begin,
-                    end, &range);
+            info.Type.BlockSplitRange((TErasureType::ECrcMode)state.Id.CrcMode(), state.Id.BlobSize(), begin, 
+                    end, &range); 
             for (ui32 partIdx = range.BeginPartIdx; partIdx < range.EndPartIdx; ++partIdx) {
                 TPartOffsetRange &partRange = range.PartRanges[partIdx];
                 if (partRange.Begin != partRange.End && partRange.WholeBegin < partRange.WholeEnd) {
                     if (!state.Parts[partIdx].Here.IsEmpty()) {
-                        TIntervalVec<i32> partInterval(partRange.Begin, partRange.End);
-                        if (partInterval.IsSubsetOf(state.Parts[partIdx].Here)) {
+                        TIntervalVec<i32> partInterval(partRange.Begin, partRange.End); 
+                        if (partInterval.IsSubsetOf(state.Parts[partIdx].Here)) { 
                             i64 sizeToCopy = partRange.End - partRange.Begin;
                             if (tmp.size() < (ui64)sizeToCopy) {
                                 tmp = TString::Uninitialized(sizeToCopy);
@@ -60,7 +60,7 @@ public:
                 ui32 diskIdx = (niche < 0 ? partIdx : totalPartCount + niche);
                 TBlobState::TDisk &disk = state.Disks[diskIdx];
                 TBlobState::ESituation partSituation = disk.DiskParts[partIdx].Situation;
-                TIntervalSet<i32> &requested = disk.DiskParts[partIdx].Requested;
+                TIntervalSet<i32> &requested = disk.DiskParts[partIdx].Requested; 
                 if (partSituation == TBlobState::ESituation::Present) {
                     isMissing = false;
                 }
@@ -78,11 +78,11 @@ public:
         }
 
         // get intervals needed to restore the requested full data
-        TIntervalSet<i32> toRestore;
-        for (auto it = state.Whole.NotHere.begin(); it != state.Whole.NotHere.end(); ++it) {
-            auto [begin, end] = *it;
+        TIntervalSet<i32> toRestore; 
+        for (auto it = state.Whole.NotHere.begin(); it != state.Whole.NotHere.end(); ++it) { 
+            auto [begin, end] = *it; 
             TBlockSplitRange range;
-            info.Type.BlockSplitRange((TErasureType::ECrcMode)state.Id.CrcMode(), state.Id.BlobSize(), begin, end, &range);
+            info.Type.BlockSplitRange((TErasureType::ECrcMode)state.Id.CrcMode(), state.Id.BlobSize(), begin, end, &range); 
             for (ui32 partIdx = range.BeginPartIdx; partIdx < range.EndPartIdx; ++partIdx) {
                 TPartOffsetRange &partRange = range.PartRanges[partIdx];
                 if (partRange.Begin != partRange.End) {
@@ -106,11 +106,11 @@ public:
         const ui32 partSize = info.Type.PartSize(state.Id);
 
         // Gather part ranges that need to be restored
-        TIntervalSet<i32> partIntervals;
-        for (auto it = state.Whole.NotHere.begin(); it != state.Whole.NotHere.end(); ++it) {
-            auto [begin, end] = *it; // missing
+        TIntervalSet<i32> partIntervals; 
+        for (auto it = state.Whole.NotHere.begin(); it != state.Whole.NotHere.end(); ++it) { 
+            auto [begin, end] = *it; // missing 
             TBlockSplitRange range;
-            info.Type.BlockSplitRange((TErasureType::ECrcMode)state.Id.CrcMode(), state.Id.BlobSize(), begin, end, &range);
+            info.Type.BlockSplitRange((TErasureType::ECrcMode)state.Id.CrcMode(), state.Id.BlobSize(), begin, end, &range); 
             for (ui32 partIdx = range.BeginPartIdx; partIdx < range.EndPartIdx; ++partIdx) {
                 TPartOffsetRange &partRange = range.PartRanges[partIdx];
                 if (partRange.Begin != partRange.End) {
@@ -132,9 +132,9 @@ public:
             TDataPartSet partSet;
             partSet.Parts.resize(totalPartCount);
             i64 maxSize = 0;
-            for (auto it = partIntervals.begin(); it != partIntervals.end(); ++it) {
-                auto [begin, end] = *it;
-                i64 size = end - begin;
+            for (auto it = partIntervals.begin(); it != partIntervals.end(); ++it) { 
+                auto [begin, end] = *it; 
+                i64 size = end - begin; 
                 maxSize = Max(size, maxSize);
             }
             for (ui32 i = 0; i < totalPartCount; ++i) {
@@ -143,10 +143,10 @@ public:
             }
             partSet.FullDataSize = state.Id.BlobSize();
             partSet.IsFragment = true;
-            for (auto it = partIntervals.begin(); it != partIntervals.end(); ++it) {
-                auto [alignedBegin, alignedEnd] = *it;
-                TIntervalVec<i32> needRange(alignedBegin, alignedEnd);
-                i32 needSize = alignedEnd - alignedBegin;
+            for (auto it = partIntervals.begin(); it != partIntervals.end(); ++it) { 
+                auto [alignedBegin, alignedEnd] = *it; 
+                TIntervalVec<i32> needRange(alignedBegin, alignedEnd); 
+                i32 needSize = alignedEnd - alignedBegin; 
                 if (info.Type.ErasureFamily() == TErasureType::ErasureParityBlock) {
                     partSet.PartsMask = 0;
                     for (ui32 i = 0; i < totalPartCount; ++i) {
@@ -164,12 +164,12 @@ public:
 
                     for (ui32 partIdx = wholeRange.BeginPartIdx; partIdx < wholeRange.EndPartIdx; ++partIdx) {
                         TPartOffsetRange &partRange = wholeRange.PartRanges[partIdx];
-                        i32 begin = Max<i32>(partRange.Begin, alignedBegin);
-                        i32 end = Min<i32>(partRange.End, alignedEnd);
+                        i32 begin = Max<i32>(partRange.Begin, alignedBegin); 
+                        i32 end = Min<i32>(partRange.End, alignedEnd); 
                         if (begin < end) {
-                            i32 offset = partRange.WholeBegin + begin - partRange.Begin;
-                            TIntervalVec<i32> x(offset, offset + end - begin);
-                            if (!x.IsSubsetOf(state.Whole.Here)) {
+                            i32 offset = partRange.WholeBegin + begin - partRange.Begin; 
+                            TIntervalVec<i32> x(offset, offset + end - begin); 
+                            if (!x.IsSubsetOf(state.Whole.Here)) { 
                                 // Cerr << "copy from# " << partRange.WholeBegin << " to# " << partRange.WholeEnd << Endl;
                                 state.Whole.Data.Write(offset, partSet.Parts[partIdx].GetDataAt(begin), end - begin);
                                 state.Whole.Here.Add(offset, offset + end - begin);
@@ -212,10 +212,10 @@ public:
                 if (toRestore.IsSubsetOf(state.Parts[i].Here)) {
                     partSet.PartsMask |= (1 << i);
                     TString tmp = TString::Uninitialized(partSize);
-                    for (auto it = toRestore.begin(); it != toRestore.end(); ++it) {
-                        auto [begin, end] = *it;
-                        i32 offset = begin;
-                        i32 size = end - begin;
+                    for (auto it = toRestore.begin(); it != toRestore.end(); ++it) { 
+                        auto [begin, end] = *it; 
+                        i32 offset = begin; 
+                        i32 size = end - begin; 
                         // Cerr << "part# " << i << " partSize# " << partSize << " offset# " << offset << " size# " << size << Endl;
                         state.Parts[i].Data.Read(offset, const_cast<char*>(tmp.data()) + offset, size);
                     }
@@ -226,11 +226,11 @@ public:
             TString whole;
             info.Type.RestoreData((TErasureType::ECrcMode)state.Id.CrcMode(), partSet, whole, false, true, false);
 
-            TIntervalSet<i32> missing(state.Whole.NotHere);
-            for (auto it = missing.begin(); it != missing.end(); ++it) {
-                auto [begin, end] = *it;
-                i32 offset = begin;
-                i32 size = end - begin;
+            TIntervalSet<i32> missing(state.Whole.NotHere); 
+            for (auto it = missing.begin(); it != missing.end(); ++it) { 
+                auto [begin, end] = *it; 
+                i32 offset = begin; 
+                i32 size = end - begin; 
                 const char *source = whole.data() + offset;
                 // Cerr << "LINE " << __LINE__ << " copy whole [" << offset << ", " << (offset + size) << ")" << Endl;
                 state.Whole.Data.Write(offset, source, size);
@@ -247,15 +247,15 @@ public:
             bool considerSlowAsError, TGroupDiskRequests &groupDiskRequests) {
         const ui32 totalPartCount = info.Type.TotalPartCount();
         const i32 handoff = info.Type.Handoff();
-        for (auto it = state.Whole.NotHere.begin(); it != state.Whole.NotHere.end(); ++it) {
-            auto [begin, end] = *it;
+        for (auto it = state.Whole.NotHere.begin(); it != state.Whole.NotHere.end(); ++it) { 
+            auto [begin, end] = *it; 
             TBlockSplitRange range;
             info.Type.BlockSplitRange((TErasureType::ECrcMode)state.Id.CrcMode(), state.Id.BlobSize(),
-                    begin, end, &range);
+                    begin, end, &range); 
             for (ui32 partIdx = range.BeginPartIdx; partIdx < range.EndPartIdx; ++partIdx) {
                 TPartOffsetRange &partRange = range.PartRanges[partIdx];
                 if (partRange.Begin != partRange.End) {
-                    TIntervalSet<i32> partInterval(partRange.AlignedBegin, partRange.AlignedEnd);
+                    TIntervalSet<i32> partInterval(partRange.AlignedBegin, partRange.AlignedEnd); 
                     partInterval.Subtract(state.Parts[partIdx].Here);
                     if (!partInterval.IsEmpty()) {
                         for (i32 niche = -1; niche < handoff; ++niche) {
@@ -265,7 +265,7 @@ public:
                                 TBlobState::ESituation partSituation = disk.DiskParts[partIdx].Situation;
                                 if (partSituation == TBlobState::ESituation::Unknown ||
                                         partSituation == TBlobState::ESituation::Present) {
-                                    TIntervalSet<i32> unrequestedInterval(partInterval);
+                                    TIntervalSet<i32> unrequestedInterval(partInterval); 
                                     unrequestedInterval.Subtract(disk.DiskParts[partIdx].Requested);
                                     if (!unrequestedInterval.IsEmpty()) {
                                         AddGetRequest(logCtx, groupDiskRequests, state.Id, partIdx, disk,
@@ -284,16 +284,16 @@ public:
         const ui32 totalPartCount = info.Type.TotalPartCount();
         const i32 handoff = info.Type.Handoff();
         bool isMinimalPossible = true;
-        for (auto it = state.Whole.NotHere.begin(); it != state.Whole.NotHere.end(); ++it) {
-            auto [begin, end] = *it;
+        for (auto it = state.Whole.NotHere.begin(); it != state.Whole.NotHere.end(); ++it) { 
+            auto [begin, end] = *it; 
             TBlockSplitRange range;
-            info.Type.BlockSplitRange((TErasureType::ECrcMode)state.Id.CrcMode(), state.Id.BlobSize(), begin,
-                    end, &range);
+            info.Type.BlockSplitRange((TErasureType::ECrcMode)state.Id.CrcMode(), state.Id.BlobSize(), begin, 
+                    end, &range); 
             for (ui32 partIdx = range.BeginPartIdx; partIdx < range.EndPartIdx; ++partIdx) {
                 TPartOffsetRange &partRange = range.PartRanges[partIdx];
                 if (partRange.Begin != partRange.End) {
-                    TIntervalVec<i32> partInterval(partRange.AlignedBegin, partRange.AlignedEnd);
-                    if (!partInterval.IsSubsetOf(state.Parts[partIdx].Here)) {
+                    TIntervalVec<i32> partInterval(partRange.AlignedBegin, partRange.AlignedEnd); 
+                    if (!partInterval.IsSubsetOf(state.Parts[partIdx].Here)) { 
                         bool isThereAGoodPart = false;
                         for (i32 niche = -1; niche < handoff; ++niche) {
                             ui32 diskIdx = (niche < 0 ? partIdx : totalPartCount + niche);
@@ -317,13 +317,13 @@ public:
     }
 
     void FillIntervalsToRestoreRequestedFullData(TBlobState &state, const TBlobStorageGroupInfo &info,
-            TIntervalSet<i32> &outToRestore) {
+            TIntervalSet<i32> &outToRestore) { 
         // get intervals needed to restore the requested full data
-        for (auto it = state.Whole.NotHere.begin(); it != state.Whole.NotHere.end(); ++it) {
-            auto [begin, end] = *it;
+        for (auto it = state.Whole.NotHere.begin(); it != state.Whole.NotHere.end(); ++it) { 
+            auto [begin, end] = *it; 
             TBlockSplitRange range;
             info.Type.BlockSplitRange((TErasureType::ECrcMode)state.Id.CrcMode(), state.Id.BlobSize(),
-                    begin, end, &range);
+                    begin, end, &range); 
             for (ui32 partIdx = range.BeginPartIdx; partIdx < range.EndPartIdx; ++partIdx) {
                 TPartOffsetRange &partRange = range.PartRanges[partIdx];
                 if (partRange.Begin != partRange.End) {
@@ -360,7 +360,7 @@ public:
 
     void IssueGetRequestsForRestoration(TLogContext &logCtx, TBlobState &state, const TBlobStorageGroupInfo &info,
             bool considerSlowAsError, TGroupDiskRequests &groupDiskRequests) {
-        TIntervalSet<i32> toRestore;
+        TIntervalSet<i32> toRestore; 
         FillIntervalsToRestoreRequestedFullData(state, info, toRestore);
 
         ui32 partsMissing = CountPartsMissing(state, info, considerSlowAsError);
@@ -379,7 +379,7 @@ public:
                     TBlobState::ESituation partSituation = disk.DiskParts[partIdx].Situation;
                     if (partSituation == TBlobState::ESituation::Unknown ||
                             partSituation == TBlobState::ESituation::Present) {
-                        TIntervalSet<i32> partIntervals(toRestore);
+                        TIntervalSet<i32> partIntervals(toRestore); 
                         partIntervals.Subtract(state.Parts[partIdx].Here);
                         partIntervals.Subtract(disk.DiskParts[partIdx].Requested);
                         if (!partIntervals.IsEmpty()) {
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_min_iops_mirror.h b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_min_iops_mirror.h
index 4ec3edaf93..510d58d025 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_min_iops_mirror.h
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_get_min_iops_mirror.h
@@ -9,19 +9,19 @@ class TMinIopsMirrorStrategy : public TStrategyBase {
 public:
     std::optional<EStrategyOutcome> RestoreWholeFromDataParts(TLogContext& /*logCtx*/, TBlobState &state,
             const TBlobStorageGroupInfo &info) {
-        TIntervalSet<i32> missing(state.Whole.NotHere);
+        TIntervalSet<i32> missing(state.Whole.NotHere); 
         const ui32 totalPartCount = info.Type.TotalPartCount();
-        for (auto it = missing.begin(); it != missing.end(); ++it) {
-            auto [begin, end] = *it;
+        for (auto it = missing.begin(); it != missing.end(); ++it) { 
+            auto [begin, end] = *it; 
             for (ui32 partIdx = 0; partIdx < totalPartCount; ++partIdx) {
-                TIntervalVec<i32> partInterval(begin, end);
+                TIntervalVec<i32> partInterval(begin, end); 
                 if (partInterval.IsSubsetOf(state.Parts[partIdx].Here)) {
-                    TString tmp = TString::Uninitialized(end - begin);
+                    TString tmp = TString::Uninitialized(end - begin); 
                     Y_VERIFY(tmp.size());
-                    state.Parts[partIdx].Data.Read(begin, const_cast<char*>(tmp.data()), tmp.size());
-                    state.Whole.Data.Write(begin, tmp.data(), end - begin);
-                    state.Whole.Here.Add(begin, end);
-                    state.Whole.NotHere.Subtract(begin, end);
+                    state.Parts[partIdx].Data.Read(begin, const_cast<char*>(tmp.data()), tmp.size()); 
+                    state.Whole.Data.Write(begin, tmp.data(), end - begin); 
+                    state.Whole.Here.Add(begin, end); 
+                    state.Whole.NotHere.Subtract(begin, end); 
                 }
             }
         }
@@ -55,11 +55,11 @@ public:
         const ui32 totalPartCount = info.Type.TotalPartCount();
         const i32 handoff = info.Type.Handoff();
         bool isMinimalPossible = true;
-        for (auto it = state.Whole.NotHere.begin(); it != state.Whole.NotHere.end(); ++it) {
-            auto [begin, end] = *it;
+        for (auto it = state.Whole.NotHere.begin(); it != state.Whole.NotHere.end(); ++it) { 
+            auto [begin, end] = *it; 
             bool isThereAGoodPart = false;
             for (ui32 partIdx = 0; partIdx < totalPartCount; ++partIdx) {
-                TIntervalSet<i32> partInterval(begin, end);
+                TIntervalSet<i32> partInterval(begin, end); 
                 partInterval.Subtract(state.Parts[partIdx].Here);
                 if (!partInterval.IsEmpty()) {
                     for (i32 niche = -1; niche < handoff; ++niche) {
@@ -78,10 +78,10 @@ public:
             }
         }
         if (isMinimalPossible) {
-            for (auto it = state.Whole.NotHere.begin(); it != state.Whole.NotHere.end(); ++it) {
-                auto [begin, end] = *it;
+            for (auto it = state.Whole.NotHere.begin(); it != state.Whole.NotHere.end(); ++it) { 
+                auto [begin, end] = *it; 
                 for (ui32 partIdx = 0; partIdx < totalPartCount; ++partIdx) {
-                    TIntervalSet<i32> partInterval(begin, end);
+                    TIntervalSet<i32> partInterval(begin, end); 
                     partInterval.Subtract(state.Parts[partIdx].Here);
                     if (!partInterval.IsEmpty()) {
                         for (i32 niche = -1; niche < handoff; ++niche) {
@@ -90,7 +90,7 @@ public:
                             TBlobState::ESituation partSituation = disk.DiskParts[partIdx].Situation;
                             if (partSituation == TBlobState::ESituation::Unknown ||
                                     partSituation == TBlobState::ESituation::Present) {
-                                TIntervalSet<i32> unrequestedInterval(partInterval);
+                                TIntervalSet<i32> unrequestedInterval(partInterval); 
                                 unrequestedInterval.Subtract(disk.DiskParts[partIdx].Requested);
                                 if (!unrequestedInterval.IsEmpty()) {
 
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_put_m3of4.h b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_put_m3of4.h
index b372e891eb..6e2816a575 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_strategy_put_m3of4.h
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_strategy_put_m3of4.h
@@ -45,8 +45,8 @@ protected:
                 return state.Parts[i].Data.GetMonolith();
             }
         }
-        const TIntervalVec<i32> interval(0, state.Id.BlobSize());
-        Y_VERIFY(interval.IsSubsetOf(state.Whole.Here), "missing blob data State# %s", state.ToString().data());
+        const TIntervalVec<i32> interval(0, state.Id.BlobSize()); 
+        Y_VERIFY(interval.IsSubsetOf(state.Whole.Here), "missing blob data State# %s", state.ToString().data()); 
         TString wholeBuffer = TString::Uninitialized(state.Id.BlobSize());
         state.Whole.Data.Read(0, const_cast<char*>(wholeBuffer.data()), state.Id.BlobSize());
         TDataPartSet partSet;
diff --git a/ydb/core/blobstorage/dsproxy/dsproxy_timestats.h b/ydb/core/blobstorage/dsproxy/dsproxy_timestats.h
index 943b93858d..98b8c8ebfb 100644
--- a/ydb/core/blobstorage/dsproxy/dsproxy_timestats.h
+++ b/ydb/core/blobstorage/dsproxy/dsproxy_timestats.h
@@ -138,8 +138,8 @@ public:
 
 #define PARAM(NAME, V) \
             do { \
-                TABLER() { \
-                    TABLED() { str << "<b>" << #NAME << "</b>"; } \
+                TABLER() { \ 
+                    TABLED() { str << "<b>" << #NAME << "</b>"; } \ 
                     for (auto it = V.begin(); it != V.end(); ++it) { \
                         auto& series = it->second; \
                         series.Update(now); \
@@ -151,7 +151,7 @@ public:
                             values.push_back(item.second.NAME); \
                         } \
                         std::sort(values.begin(), values.end()); \
-                        TABLED() { \
+                        TABLED() { \ 
                             if (values) { \
                                 size_t index = perc * values.size(); \
                                 if (index >= values.size()) { \
@@ -161,104 +161,104 @@ public:
                             } else { \
                                 str << "none"; \
                             } \
-                        } \
+                        } \ 
                     } \
-                } \
+                } \ 
             } while (false)
         double perc = Percentile;
-        HTML(str) {
-            DIV_CLASS("panel panel-info") {
-                DIV_CLASS("panel-heading") {
+        HTML(str) { 
+            DIV_CLASS("panel panel-info") { 
+                DIV_CLASS("panel-heading") { 
                     str << "Time accounting setup";
-                }
-                DIV_CLASS("panel-body") {
-                    FORM_CLASS("form-horizontal") {
-                        DIV_CLASS("control-group") {
-                            DIV_CLASS("controls") {
-                                LABEL_CLASS("checkbox") {
+                } 
+                DIV_CLASS("panel-body") { 
+                    FORM_CLASS("form-horizontal") { 
+                        DIV_CLASS("control-group") { 
+                            DIV_CLASS("controls") { 
+                                LABEL_CLASS("checkbox") { 
                                     str << "<input type=\"checkbox\" name=\"enabled\"";
                                     if (Enabled) {
                                         str << " checked=\"checked\"";
                                     }
                                     str << ">Enabled</input>";
-                                }
-                            }
-                        }
-                        DIV_CLASS("control-group") {
-                            LABEL_CLASS_FOR("control-label", "inputAggrTime") { str << "Aggregation time"; }
-                            DIV_CLASS("controls") {
+                                } 
+                            } 
+                        } 
+                        DIV_CLASS("control-group") { 
+                            LABEL_CLASS_FOR("control-label", "inputAggrTime") { str << "Aggregation time"; } 
+                            DIV_CLASS("controls") { 
                                 str << "<input id=\"inputAggrTime\" name=\"aggrTime\" type=\"text\" value=\"" << AggrTime << "\"/>";
-                            }
-                        }
-                        DIV_CLASS("control-group") {
-                            LABEL_CLASS_FOR("control-label", "inputPercentile") { str << "Percentile"; }
-                            DIV_CLASS("controls") {
+                            } 
+                        } 
+                        DIV_CLASS("control-group") { 
+                            LABEL_CLASS_FOR("control-label", "inputPercentile") { str << "Percentile"; } 
+                            DIV_CLASS("controls") { 
                                 str << "<input id=\"inputPercentile\" name=\"percentile\" type=\"text\" value=\"" << Percentile << "\"/>";
-                            }
-                        }
-                        DIV_CLASS("control-group") {
-                            DIV_CLASS("controls") {
+                            } 
+                        } 
+                        DIV_CLASS("control-group") { 
+                            DIV_CLASS("controls") { 
                                 str << "<button type=\"submit\" name=\"submit_timestats\" class=\"btn btn-default\">Submit</button>";
-                            }
-                        }
-                    }
-                }
-            }
-            DIV_CLASS("panel panel-info") {
-                DIV_CLASS("panel-heading") {
+                            } 
+                        } 
+                    } 
+                } 
+            } 
+            DIV_CLASS("panel panel-info") { 
+                DIV_CLASS("panel-heading") { 
                     str << "Put stats percentile# " << perc;
-                }
-                DIV_CLASS("panel-body") {
-                    TABLE_CLASS ("table table-condensed") {
-                        TABLEHEAD() {
-                            TABLER() {
-                                TABLEH() { str << "size"; }
+                } 
+                DIV_CLASS("panel-body") { 
+                    TABLE_CLASS ("table table-condensed") { 
+                        TABLEHEAD() { 
+                            TABLER() { 
+                                TABLEH() { str << "size"; } 
                                 for (auto it = Puts.begin(); it != Puts.end(); ++it) {
-                                    TABLEH() {
+                                    TABLEH() { 
                                         str << it->first << "+";
-                                    }
+                                    } 
                                 }
-                            }
-                        }
-                        TABLEBODY() {
+                            } 
+                        } 
+                        TABLEBODY() { 
                             PARAM(InSenderQueue, Puts);
                             PARAM(Total, Puts);
                             PARAM(InQueue, Puts);
                             PARAM(Execution, Puts);
                             PARAM(RTT, Puts);
-                        }
-                    }
-                }
-            }
-            DIV_CLASS("panel panel-info") {
-                DIV_CLASS("panel-heading") {
+                        } 
+                    } 
+                } 
+            } 
+            DIV_CLASS("panel panel-info") { 
+                DIV_CLASS("panel-heading") { 
                     str << "HugePut stats percentile# " << perc;
-                }
-                DIV_CLASS("panel-body") {
-                    TABLE_CLASS ("table table-condensed") {
-                        TABLEHEAD() {
-                            TABLER() {
-                                TABLEH() { str << "size"; }
+                } 
+                DIV_CLASS("panel-body") { 
+                    TABLE_CLASS ("table table-condensed") { 
+                        TABLEHEAD() { 
+                            TABLER() { 
+                                TABLEH() { str << "size"; } 
                                 for (auto it = HugePuts.begin(); it != HugePuts.end(); ++it) {
-                                    TABLEH() {
+                                    TABLEH() { 
                                         str << it->first << "+";
-                                    }
+                                    } 
                                 }
-                            }
-                        }
-                        TABLEBODY() {
+                            } 
+                        } 
+                        TABLEBODY() { 
                             PARAM(InSenderQueue, HugePuts);
                             PARAM(Total, HugePuts);
                             PARAM(InQueue, HugePuts);
                             PARAM(Execution, HugePuts);
                             PARAM(RTT, HugePuts);
                             PARAM(HugeWriteTime, HugePuts);
-                        }
-                    }
-                }
-            }
-        }
-
+                        } 
+                    } 
+                } 
+            } 
+        } 
+ 
     }
 
     template<typename TCgiParameters>
diff --git a/ydb/core/blobstorage/dsproxy/root_cause.h b/ydb/core/blobstorage/dsproxy/root_cause.h
index 5126190cc8..9bddfda825 100644
--- a/ydb/core/blobstorage/dsproxy/root_cause.h
+++ b/ydb/core/blobstorage/dsproxy/root_cause.h
@@ -62,7 +62,7 @@ struct TRootCause {
 
     ui64 RegisterCause() {
         if (IsOn && Items.size() < InvalidCauseIdx - 1) {
-            Items.emplace_back(CurrentCauseIdx, GetCycleCountFast(), false);
+            Items.emplace_back(CurrentCauseIdx, GetCycleCountFast(), false); 
             return Items.size() - 1;
         } else {
             return InvalidCauseIdx;
@@ -71,7 +71,7 @@ struct TRootCause {
 
     ui64 RegisterAccelerate() {
         if (IsOn && Items.size() < InvalidCauseIdx - 1) {
-            Items.emplace_back(CurrentCauseIdx, GetCycleCountFast(), true);
+            Items.emplace_back(CurrentCauseIdx, GetCycleCountFast(), true); 
             return Items.size() - 1;
         } else {
             return InvalidCauseIdx;
@@ -86,7 +86,7 @@ struct TRootCause {
         if (causeIdx < Items.size()) {
             CurrentCauseIdx = causeIdx;
             TRootCauseItem &item = Items[CurrentCauseIdx];
-            item.VDiskReplyCycles = GetCycleCountFast();
+            item.VDiskReplyCycles = GetCycleCountFast(); 
             if (transferDuration + vDiskDuration > 0) {
                 ui64 transferCycles = item.StartCycles + ui64((transferDuration / (transferDuration + vDiskDuration))
                         * (item.VDiskReplyCycles - item.StartCycles));
diff --git a/ydb/core/blobstorage/lwtrace_probes/blobstorage_probes.cpp b/ydb/core/blobstorage/lwtrace_probes/blobstorage_probes.cpp
index 0f6a440f57..7d432d4b03 100644
--- a/ydb/core/blobstorage/lwtrace_probes/blobstorage_probes.cpp
+++ b/ydb/core/blobstorage/lwtrace_probes/blobstorage_probes.cpp
@@ -4,28 +4,28 @@
 
 LWTRACE_DEFINE_PROVIDER(BLOBSTORAGE_PROVIDER);
 LWTRACE_DEFINE_PROVIDER(FAIL_INJECTION_PROVIDER);
-
-namespace NKikimr { namespace NPDisk {
-
-
+ 
+namespace NKikimr { namespace NPDisk { 
+ 
+ 
 void TRequestTypeField::ToString(ui32 value, TString *out) {
-    switch(ERequestType(value)) {
-    case ERequestType::RequestLogRead:      *out = "LogRead"; break;
-    case ERequestType::RequestLogWrite:     *out = "LogWrite"; break;
-    case ERequestType::RequestChunkRead:    *out = "ChunkRead"; break;
-    case ERequestType::RequestChunkWrite:   *out = "ChunkWrite"; break;
-    case ERequestType::RequestChunkTrim:    *out = "ChunkTrim"; break;
-    case ERequestType::RequestYardInit:     *out = "YardInit"; break;
-    case ERequestType::RequestCheckSpace:   *out = "CheckSpace"; break;
-    case ERequestType::RequestHarakiri:     *out = "Harakiri"; break;
-    case ERequestType::RequestChunkReserve: *out = "ChunkReserve"; break;
-    case ERequestType::RequestYardControl:  *out = "YardControl"; break;
-    default: *out = "Unknown";
-    }
-    *out += "(" + ::ToString(value) + ")";
-}
-
-}}
+    switch(ERequestType(value)) { 
+    case ERequestType::RequestLogRead:      *out = "LogRead"; break; 
+    case ERequestType::RequestLogWrite:     *out = "LogWrite"; break; 
+    case ERequestType::RequestChunkRead:    *out = "ChunkRead"; break; 
+    case ERequestType::RequestChunkWrite:   *out = "ChunkWrite"; break; 
+    case ERequestType::RequestChunkTrim:    *out = "ChunkTrim"; break; 
+    case ERequestType::RequestYardInit:     *out = "YardInit"; break; 
+    case ERequestType::RequestCheckSpace:   *out = "CheckSpace"; break; 
+    case ERequestType::RequestHarakiri:     *out = "Harakiri"; break; 
+    case ERequestType::RequestChunkReserve: *out = "ChunkReserve"; break; 
+    case ERequestType::RequestYardControl:  *out = "YardControl"; break; 
+    default: *out = "Unknown"; 
+    } 
+    *out += "(" + ::ToString(value) + ")"; 
+} 
+ 
+}} 
 
 namespace NKikimr {
 
diff --git a/ydb/core/blobstorage/lwtrace_probes/blobstorage_probes.h b/ydb/core/blobstorage/lwtrace_probes/blobstorage_probes.h
index 7e20a7bd81..3277bca37e 100644
--- a/ydb/core/blobstorage/lwtrace_probes/blobstorage_probes.h
+++ b/ydb/core/blobstorage/lwtrace_probes/blobstorage_probes.h
@@ -4,33 +4,33 @@
 
 #include <library/cpp/lwtrace/all.h>
 
-// Helper class for printing pdisk id in the same was as it done for counters
-struct TPDiskIdField {
-    typedef ui32 TStoreType;
+// Helper class for printing pdisk id in the same was as it done for counters 
+struct TPDiskIdField { 
+    typedef ui32 TStoreType; 
     typedef ui32 TFuncParam;
 
     static void ToString(ui32 value, TString* out) {
-        *out = Sprintf("%09" PRIu32, value);
-    }
+        *out = Sprintf("%09" PRIu32, value); 
+    } 
     static ui32 ToStoreType(ui32 value) {
         return value;
     }
-};
-
-namespace NKikimr { namespace NPDisk {
-
-struct TRequestTypeField {
-    typedef ui32 TStoreType;
+}; 
+ 
+namespace NKikimr { namespace NPDisk { 
+ 
+struct TRequestTypeField { 
+    typedef ui32 TStoreType; 
     typedef ui32 TFuncParam;
 
     static void ToString(ui32 value, TString* out);
     static ui32 ToStoreType(ui32 value) {
         return value;
     }
-};
-
-}}
-
+}; 
+ 
+}} 
+ 
 namespace NKikimr {
 
 struct TBlobPutTactics {
@@ -62,16 +62,16 @@ struct TEventTypeField {
     PROBE(DSProxyBatchedGetRequest, GROUPS("DSProxy"), \
         TYPES(ui64, ui32), \
         NAMES("count" , "groupId")) \
-    PROBE(ProxyPutBootstrapPart, GROUPS("Durations"), \
-      TYPES(ui64, double, double, ui64, double), \
-      NAMES("size", "waitMs", "splitMs", "splitCount", "splitElapsedMs")) \
+    PROBE(ProxyPutBootstrapPart, GROUPS("Durations"), \ 
+      TYPES(ui64, double, double, ui64, double), \ 
+      NAMES("size", "waitMs", "splitMs", "splitCount", "splitElapsedMs")) \ 
     PROBE(DSProxyRequestDuration, GROUPS("DSProxyRequest", "DSProxy"), \
-      TYPES(NKikimr::TEventTypeField, ui64, double, ui64, ui32, ui32, TString, bool), \
+      TYPES(NKikimr::TEventTypeField, ui64, double, ui64, ui32, ui32, TString, bool), \ 
       NAMES("type", "size", "durationMs", "tabletId", "groupId", "channel", "handleClass", "isOk")) \
     PROBE(DSProxyVDiskRequestDuration, GROUPS("VDisk", "DSProxy"), \
-      TYPES(NKikimr::TEventTypeField, ui64, ui64, ui32, ui32, ui32, double, double, double, double, TString, TString), \
+      TYPES(NKikimr::TEventTypeField, ui64, ui64, ui32, ui32, ui32, double, double, double, double, TString, TString), \ 
       NAMES("type", "size", "tabletId", "groupId", "channel", "vdiskOrderNum", "startTime", "totalDurationMs", \
-          "vdiskDurationMs", "transferDurationMs", "handleClass", "status")) \
+          "vdiskDurationMs", "transferDurationMs", "handleClass", "status")) \ 
     PROBE(VDiskSkeletonFrontVMovedPatchRecieved, GROUPS("VDisk", "DSProxy"), \
       TYPES(ui32, ui32, ui32, ui64, ui64), \
       NAMES("nodeId", "groupId", "vdiskOrderNum", "tabletId", "size")) \
@@ -126,18 +126,18 @@ struct TEventTypeField {
       TYPES(double, ui32, bool), \
       NAMES("processingTimeMs", "size", "isDiscarded")) \
     PROBE(PDiskNewRequest, GROUPS("PDisk", "PDiskRequest", "LWTrackStart"), \
-      TYPES(TPDiskIdField, ui64, double, double, bool, bool, ui64, ui64, NKikimr::NPDisk::TRequestTypeField), \
-      NAMES("pdisk", "reqId", "creationTimeSec", "costMs", "isSensitive", "isFast", "owner", "priorityClass", "type")) \
-    PROBE(PDiskFairSchedulerPush, GROUPS("PDisk", "PDiskRequest"), \
+      TYPES(TPDiskIdField, ui64, double, double, bool, bool, ui64, ui64, NKikimr::NPDisk::TRequestTypeField), \ 
+      NAMES("pdisk", "reqId", "creationTimeSec", "costMs", "isSensitive", "isFast", "owner", "priorityClass", "type")) \ 
+    PROBE(PDiskFairSchedulerPush, GROUPS("PDisk", "PDiskRequest"), \ 
       TYPES(TPDiskIdField, ui64, TString, ui64, ui64, NKikimr::NPDisk::TRequestTypeField, ui64, double), \
-      NAMES("pdisk", "reqId", "queueType", "owner", "priorityClass", "type", "fairQLA", "fairQCA")) \
-    PROBE(PDiskFairSchedulerPop, GROUPS("PDisk", "PDiskRequest"), \
+      NAMES("pdisk", "reqId", "queueType", "owner", "priorityClass", "type", "fairQLA", "fairQCA")) \ 
+    PROBE(PDiskFairSchedulerPop, GROUPS("PDisk", "PDiskRequest"), \ 
       TYPES(TPDiskIdField, ui64, TString, ui64, ui64, NKikimr::NPDisk::TRequestTypeField, ui64, double, bool), \
-      NAMES("pdisk", "reqId", "queueType", "owner", "priorityClass", "type", "fairQLD", "fairQCD", "guarantyLost")) \
-    PROBE(PDiskInputRequestTimeout, GROUPS("PDisk", "PDiskRequest"), \
-      TYPES(TPDiskIdField, ui64, double), \
-      NAMES("pdisk", "reqId", "deadlineSec")) \
-    PROBE(PDiskInputRequest, GROUPS("PDisk", "PDiskRequest"), \
+      NAMES("pdisk", "reqId", "queueType", "owner", "priorityClass", "type", "fairQLD", "fairQCD", "guarantyLost")) \ 
+    PROBE(PDiskInputRequestTimeout, GROUPS("PDisk", "PDiskRequest"), \ 
+      TYPES(TPDiskIdField, ui64, double), \ 
+      NAMES("pdisk", "reqId", "deadlineSec")) \ 
+    PROBE(PDiskInputRequest, GROUPS("PDisk", "PDiskRequest"), \ 
       TYPES(TPDiskIdField, ui64, double, double, ui64, double, double, ui64, bool, ui64, ui64), \
       NAMES("pdisk", "reqId", "creationTimeSec", "costMs", "inputQLA", "inputQCA", "deadlineSec", "owner", "isFast", \
           "priorityClass", "inputQueueSize")) \
@@ -150,49 +150,49 @@ struct TEventTypeField {
     PROBE(PDiskLogWriteFlush, GROUPS("PDisk", "PDiskRequest"), \
       TYPES(TPDiskIdField, ui64, double, double, double, ui64, bool, ui64), \
       NAMES("pdisk", "reqId", "creationTimeSec", "costMs", "deadlineSec", "owner", "isFast", "priorityClass")) \
-    PROBE(PDiskBurst, GROUPS("PDisk", "PDiskRequest"), \
-      TYPES(TPDiskIdField, ui64, double, bool, double, double), \
-      NAMES("pdisk", "reqId", "creationTimeSec", "isSensitive", "costMs", "burstMs")) \
-    PROBE(PDiskSchedulerPack, GROUPS("PDisk", "PDiskSchedulerStep"), \
-      TYPES(TPDiskIdField, ui64, ui64, double, ui64), \
-      NAMES("pdisk", "schedStep", "schedPack", "totalCostMs", "reqCount")) \
-    PROBE(PDiskSchedulerAdhesion, GROUPS("PDisk"), \
-      TYPES(TPDiskIdField, ui32, double, ui64, ui64), \
-      NAMES("pdisk", "chunkIdx", "adhesionCostMs", "adhesionWrites", "adhesionReorderings")) \
-    PROBE(PDiskSchedulerAdhesionLookup, GROUPS("PDisk"), \
-      TYPES(TPDiskIdField, bool, bool, bool, bool, bool, bool, bool, bool), \
-      NAMES("pdisk", "found", "queueEnd", "skipCostLimit", "skipCountLimit", "orderConstraint", "disabled", "adhesionSizeLimit", "interrupted")) \
-    PROBE(PDiskSchedulerDispatch, GROUPS("PDisk", "PDiskSchedulerStep", "PDiskSchedulerSubStep", "PDiskRequest"), \
-      TYPES(TPDiskIdField, ui64, ui64, ui64, ui64, bool, double), \
-      NAMES("pdisk", "schedStep", "schedSubStep", "reqId", "reqDispatched", "isSensitive", "costMs")) \
-    PROBE(PDiskSchedulerSlack, GROUPS("PDisk", "PDiskSchedulerStep", "PDiskSchedulerSubStep"), \
-      TYPES(TPDiskIdField, ui64, ui64, double, double, double, double), \
-      NAMES("pdisk", "schedStep", "schedSubStep", "slackMs", "nonscheduledMs", "burstMs", "reorderingMs")) \
-    PROBE(PDiskSchedulerInject, GROUPS("PDisk", "PDiskSchedulerStep"), \
-      TYPES(TPDiskIdField, ui64, double, double, double, double), \
-      NAMES("pdisk", "schedStep", "sensitiveQueueMs", "bestEffortQueueMs", "unusedBurstMs", "injectedMs")) \
-    PROBE(PDiskSchedulerAllocIdleSlack, GROUPS("PDisk", "PDiskSchedulerStep"), \
-      TYPES(TPDiskIdField, ui64, double, double, double), \
-      NAMES("pdisk", "schedStep", "allocIdleSlackMaxMs", "slackMs", "allocatedIdleSlackMs")) \
-    PROBE(PDiskSchedulerStepCost, GROUPS("PDisk", "PDiskSchedulerStep"), \
-      TYPES(TPDiskIdField, ui64, ui64, double, ui64, double, ui64, double, ui64), \
-      NAMES("pdisk", "schedStep", "schedPacks", "stepSensitiveCost", "stepSensitiveCount", "stepBestEffortCost", "stepBestEffortCount" \
-          , "stepCost", "stepCount")) \
-    PROBE(PDiskSchedulerStepInjected, GROUPS("PDisk", "PDiskSchedulerStep"), \
-      TYPES(TPDiskIdField, ui64, double, ui64), \
-      NAMES("pdisk", "schedStep", "stepInjectedCost", "stepInjectedCount")) \
-    PROBE(PDiskSchedulerStepBlocks, GROUPS("PDisk", "PDiskSchedulerStep"), \
-      TYPES(TPDiskIdField, ui64, ui64, ui64, ui64, ui64), \
-      NAMES("pdisk", "schedStep", "bestEffortBlocks", "bestEffortUnblocks", "sensitiveBlocks", "sensitiveUnblocks")) \
-    PROBE(PDiskSchedulerStepIdleSlack, GROUPS("PDisk", "PDiskSchedulerStep"), \
-      TYPES(TPDiskIdField, ui64, double, ui64), \
-      NAMES("pdisk", "schedStep", "stepAllocatedIdleSlackMs", "stepAllocatedIdleSlackCount")) \
-    PROBE(PDiskSchedulerSubStep, GROUPS("PDisk", "PDiskSchedulerStep", "PDiskSchedulerSubStep"), \
-      TYPES(TPDiskIdField, ui64, ui64, double, double), \
-      NAMES("pdisk", "schedStep", "schedSubStep", "subStepCost", "subStepCount")) \
+    PROBE(PDiskBurst, GROUPS("PDisk", "PDiskRequest"), \ 
+      TYPES(TPDiskIdField, ui64, double, bool, double, double), \ 
+      NAMES("pdisk", "reqId", "creationTimeSec", "isSensitive", "costMs", "burstMs")) \ 
+    PROBE(PDiskSchedulerPack, GROUPS("PDisk", "PDiskSchedulerStep"), \ 
+      TYPES(TPDiskIdField, ui64, ui64, double, ui64), \ 
+      NAMES("pdisk", "schedStep", "schedPack", "totalCostMs", "reqCount")) \ 
+    PROBE(PDiskSchedulerAdhesion, GROUPS("PDisk"), \ 
+      TYPES(TPDiskIdField, ui32, double, ui64, ui64), \ 
+      NAMES("pdisk", "chunkIdx", "adhesionCostMs", "adhesionWrites", "adhesionReorderings")) \ 
+    PROBE(PDiskSchedulerAdhesionLookup, GROUPS("PDisk"), \ 
+      TYPES(TPDiskIdField, bool, bool, bool, bool, bool, bool, bool, bool), \ 
+      NAMES("pdisk", "found", "queueEnd", "skipCostLimit", "skipCountLimit", "orderConstraint", "disabled", "adhesionSizeLimit", "interrupted")) \ 
+    PROBE(PDiskSchedulerDispatch, GROUPS("PDisk", "PDiskSchedulerStep", "PDiskSchedulerSubStep", "PDiskRequest"), \ 
+      TYPES(TPDiskIdField, ui64, ui64, ui64, ui64, bool, double), \ 
+      NAMES("pdisk", "schedStep", "schedSubStep", "reqId", "reqDispatched", "isSensitive", "costMs")) \ 
+    PROBE(PDiskSchedulerSlack, GROUPS("PDisk", "PDiskSchedulerStep", "PDiskSchedulerSubStep"), \ 
+      TYPES(TPDiskIdField, ui64, ui64, double, double, double, double), \ 
+      NAMES("pdisk", "schedStep", "schedSubStep", "slackMs", "nonscheduledMs", "burstMs", "reorderingMs")) \ 
+    PROBE(PDiskSchedulerInject, GROUPS("PDisk", "PDiskSchedulerStep"), \ 
+      TYPES(TPDiskIdField, ui64, double, double, double, double), \ 
+      NAMES("pdisk", "schedStep", "sensitiveQueueMs", "bestEffortQueueMs", "unusedBurstMs", "injectedMs")) \ 
+    PROBE(PDiskSchedulerAllocIdleSlack, GROUPS("PDisk", "PDiskSchedulerStep"), \ 
+      TYPES(TPDiskIdField, ui64, double, double, double), \ 
+      NAMES("pdisk", "schedStep", "allocIdleSlackMaxMs", "slackMs", "allocatedIdleSlackMs")) \ 
+    PROBE(PDiskSchedulerStepCost, GROUPS("PDisk", "PDiskSchedulerStep"), \ 
+      TYPES(TPDiskIdField, ui64, ui64, double, ui64, double, ui64, double, ui64), \ 
+      NAMES("pdisk", "schedStep", "schedPacks", "stepSensitiveCost", "stepSensitiveCount", "stepBestEffortCost", "stepBestEffortCount" \ 
+          , "stepCost", "stepCount")) \ 
+    PROBE(PDiskSchedulerStepInjected, GROUPS("PDisk", "PDiskSchedulerStep"), \ 
+      TYPES(TPDiskIdField, ui64, double, ui64), \ 
+      NAMES("pdisk", "schedStep", "stepInjectedCost", "stepInjectedCount")) \ 
+    PROBE(PDiskSchedulerStepBlocks, GROUPS("PDisk", "PDiskSchedulerStep"), \ 
+      TYPES(TPDiskIdField, ui64, ui64, ui64, ui64, ui64), \ 
+      NAMES("pdisk", "schedStep", "bestEffortBlocks", "bestEffortUnblocks", "sensitiveBlocks", "sensitiveUnblocks")) \ 
+    PROBE(PDiskSchedulerStepIdleSlack, GROUPS("PDisk", "PDiskSchedulerStep"), \ 
+      TYPES(TPDiskIdField, ui64, double, ui64), \ 
+      NAMES("pdisk", "schedStep", "stepAllocatedIdleSlackMs", "stepAllocatedIdleSlackCount")) \ 
+    PROBE(PDiskSchedulerSubStep, GROUPS("PDisk", "PDiskSchedulerStep", "PDiskSchedulerSubStep"), \ 
+      TYPES(TPDiskIdField, ui64, ui64, double, double), \ 
+      NAMES("pdisk", "schedStep", "schedSubStep", "subStepCost", "subStepCount")) \ 
     PROBE(PDiskSchedulerStartStep, GROUPS("PDisk", "PDiskSchedulerStep", "LWTrackStart"), \
-      TYPES(TPDiskIdField, ui64), \
-      NAMES("pdisk", "schedStep")) \
+      TYPES(TPDiskIdField, ui64), \ 
+      NAMES("pdisk", "schedStep")) \ 
     PROBE(PDiskChunkReadPieceAddToScheduler, GROUPS("PDisk", "PDiskRequest"), \
       TYPES(TPDiskIdField, ui32, ui64, ui64), \
       NAMES("pdisk", "pieceIdx", "size", "offset")) \
@@ -208,33 +208,33 @@ struct TEventTypeField {
     PROBE(PDiskChunkWritePieceSendToDevice, GROUPS("PDisk", "PDiskRequest"), \
       TYPES(TPDiskIdField, ui64, ui64, ui64, ui64), \
       NAMES("pdisk", "owner", "chunkIdx", "pieceOffset", "pieceSize")) \
-    PROBE(PDiskLogWriteComplete, GROUPS("PDisk", "PDiskRequest"), \
-      TYPES(TPDiskIdField, ui64, double, double, double, double, double, double), \
-      NAMES("pdisk", "reqId", "creationTimeSec", "costMs", "responseTimeMs", "inputTimeMs", "scheduleTimeMs", "deviceTotalTimeMs")) \
-    PROBE(PDiskChunkResponseTime, GROUPS("PDisk", "PDiskRequest"), \
-      TYPES(TPDiskIdField, ui64, ui64, double, ui64), \
-      NAMES("pdisk", "reqId", "priorityClass", "responseTimeMs", "sizeBytes")) \
-    PROBE(PDiskTrimResponseTime, GROUPS("PDisk", "PDiskRequest"), \
-      TYPES(TPDiskIdField, ui64, double, ui64), \
-      NAMES("pdisk", "reqId", "responseTimeMs", "sizeBytes")) \
-    PROBE(PDiskDeviceReadDuration, GROUPS("PDisk"), \
+    PROBE(PDiskLogWriteComplete, GROUPS("PDisk", "PDiskRequest"), \ 
+      TYPES(TPDiskIdField, ui64, double, double, double, double, double, double), \ 
+      NAMES("pdisk", "reqId", "creationTimeSec", "costMs", "responseTimeMs", "inputTimeMs", "scheduleTimeMs", "deviceTotalTimeMs")) \ 
+    PROBE(PDiskChunkResponseTime, GROUPS("PDisk", "PDiskRequest"), \ 
+      TYPES(TPDiskIdField, ui64, ui64, double, ui64), \ 
+      NAMES("pdisk", "reqId", "priorityClass", "responseTimeMs", "sizeBytes")) \ 
+    PROBE(PDiskTrimResponseTime, GROUPS("PDisk", "PDiskRequest"), \ 
+      TYPES(TPDiskIdField, ui64, double, ui64), \ 
+      NAMES("pdisk", "reqId", "responseTimeMs", "sizeBytes")) \ 
+    PROBE(PDiskDeviceReadDuration, GROUPS("PDisk"), \ 
       TYPES(TPDiskIdField, double, ui64), \
       NAMES("pdisk", "deviceTimeMs", "size")) \
-    PROBE(PDiskDeviceWriteDuration, GROUPS("PDisk"), \
+    PROBE(PDiskDeviceWriteDuration, GROUPS("PDisk"), \ 
       TYPES(TPDiskIdField, double, ui64), \
       NAMES("pdisk", "deviceTimeMs", "size")) \
-    PROBE(PDiskDeviceTrimDuration, GROUPS("PDisk"), \
-      TYPES(TPDiskIdField, double, ui64), \
-      NAMES("pdisk", "trimTimeMs", "trimOffset")) \
+    PROBE(PDiskDeviceTrimDuration, GROUPS("PDisk"), \ 
+      TYPES(TPDiskIdField, double, ui64), \ 
+      NAMES("pdisk", "trimTimeMs", "trimOffset")) \ 
     PROBE(PDiskDeviceOperationSizeAndType, GROUPS("PDisk"), \
       TYPES(TPDiskIdField, ui64, ui64), \
       NAMES("pdisk", "operationSize", "operationType")) \
-    PROBE(PDiskMilliBatchSize, GROUPS("PDisk"), \
-      TYPES(TPDiskIdField, ui64, ui64, ui64, ui64), \
-      NAMES("pdisk", "milliBatchLogCost", "milliBatchNonLogCost", "milliBatchLogReqs", "milliBatchNonLogReqs")) \
-    PROBE(PDiskHandleWakeup, GROUPS("PDisk"), \
-      TYPES(TPDiskIdField, double, double, double), \
-      NAMES("pdisk", "updatePercentileTrackersMs", "whiteboardReportMs", "updateSchedulerMs")) \
+    PROBE(PDiskMilliBatchSize, GROUPS("PDisk"), \ 
+      TYPES(TPDiskIdField, ui64, ui64, ui64, ui64), \ 
+      NAMES("pdisk", "milliBatchLogCost", "milliBatchNonLogCost", "milliBatchLogReqs", "milliBatchNonLogReqs")) \ 
+    PROBE(PDiskHandleWakeup, GROUPS("PDisk"), \ 
+      TYPES(TPDiskIdField, double, double, double), \ 
+      NAMES("pdisk", "updatePercentileTrackersMs", "whiteboardReportMs", "updateSchedulerMs")) \ 
     PROBE(PDiskForsetiCycle, GROUPS("PDisk"), \
       TYPES(TPDiskIdField, ui64, ui64, ui64, ui64, ui64, ui64, ui64, ui64, ui64), \
       NAMES("pdisk", "realTimeNs", "uncorrectedForsetiTimeNs", "correctedForsetiTimeNs", "timeCorrectionNs", \
@@ -251,10 +251,10 @@ struct TEventTypeField {
     PROBE(DSProxyGetReply, GROUPS("DSProxy"), TYPES(), NAMES()) \
     PROBE(DSProxyPutEnqueue, GROUPS("DSProxy", "LWTrackStart"), TYPES(), NAMES()) \
     PROBE(DSProxyPutHandle, GROUPS("DSProxyRequest", "DSProxy", "LWTrackStart"), TYPES(), NAMES()) \
-    PROBE(DSProxyPutBootstrapStart, GROUPS("DSProxy"), TYPES(), NAMES()) \
-    PROBE(DSProxyPutBootstrapDone, GROUPS("DSProxy","Durations"), \
-      TYPES(ui64, double, double, double, double, ui64, ui64), \
-      NAMES("size", "wilsonMs", "allocateMs", "waitTotalMs", "splitTotalMs", "splitTotalCount", "blobIdx")) \
+    PROBE(DSProxyPutBootstrapStart, GROUPS("DSProxy"), TYPES(), NAMES()) \ 
+    PROBE(DSProxyPutBootstrapDone, GROUPS("DSProxy","Durations"), \ 
+      TYPES(ui64, double, double, double, double, ui64, ui64), \ 
+      NAMES("size", "wilsonMs", "allocateMs", "waitTotalMs", "splitTotalMs", "splitTotalCount", "blobIdx")) \ 
     PROBE(DSProxyPutReply, GROUPS("DSProxy"), TYPES(), NAMES()) \
     PROBE(DSProxyPutResumeBootstrap, GROUPS("DSProxy"), TYPES(), NAMES()) \
     PROBE(DSProxyPutPauseBootstrap, GROUPS("DSProxy"), TYPES(), NAMES()) \
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_actor.cpp b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_actor.cpp
index d92b19c6cc..7a3d151c9b 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_actor.cpp
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_actor.cpp
@@ -10,7 +10,7 @@
 #include "blobstorage_pdisk_thread.h"
 #include "blobstorage_pdisk_tools.h"
 #include "blobstorage_pdisk_util_countedqueueoneone.h"
-#include "blobstorage_pdisk_util_cputimer.h"
+#include "blobstorage_pdisk_util_cputimer.h" 
 #include "blobstorage_pdisk_writer.h"
 
 #include <ydb/core/base/appdata.h>
@@ -83,73 +83,73 @@ class TPDiskActor : public TActorBootstrapped<TPDiskActor> {
 
     THolder<IEventHandle> ControledStartResult;
 
-    class TWhiteboardFlag {
-    private:
-        class TSource {
-        private:
-            const TLightBase& Light;
-            const ui64 ReportPeriodMs = 15000;
-            const ui64 GreenRatio = 5;
-            const ui64 YellowRatio = 25;
-            const ui64 OrangeRatio = 75;
-
-            ui64 LastCount = 0;
-            ui64 LastRedMs = 0;
-            ui64 LastGreenMs = 0;
+    class TWhiteboardFlag { 
+    private: 
+        class TSource { 
+        private: 
+            const TLightBase& Light; 
+            const ui64 ReportPeriodMs = 15000; 
+            const ui64 GreenRatio = 5; 
+            const ui64 YellowRatio = 25; 
+            const ui64 OrangeRatio = 75; 
+ 
+            ui64 LastCount = 0; 
+            ui64 LastRedMs = 0; 
+            ui64 LastGreenMs = 0; 
             ui64 LastRedMsPs = 0;
-            NKikimrWhiteboard::EFlag CurrentFlag = NKikimrWhiteboard::Green;
-        public:
-            explicit TSource(const TLightBase& light)
-                : Light(light)
-            {}
-
+            NKikimrWhiteboard::EFlag CurrentFlag = NKikimrWhiteboard::Green; 
+        public: 
+            explicit TSource(const TLightBase& light) 
+                : Light(light) 
+            {} 
+ 
             ui64 GetRedMsPs() {
                 return LastRedMsPs;
             }
 
-            NKikimrWhiteboard::EFlag GetFlag() {
-                ui64 count = Light.GetCount();
-                ui64 redMs = Light.GetRedMs();
-                ui64 greenMs = Light.GetGreenMs();
-
-                // Init on first pass
-                if (LastRedMs == 0 && LastGreenMs == 0) {
-                    SaveLast(count, redMs, greenMs);
-                }
-
-                // Recalculate new flag value if needed
-                if (greenMs + redMs > LastGreenMs + LastRedMs + ReportPeriodMs) {
-                    ui64 ratio = (redMs - LastRedMs) * 100 / (redMs - LastRedMs + greenMs - LastGreenMs);
+            NKikimrWhiteboard::EFlag GetFlag() { 
+                ui64 count = Light.GetCount(); 
+                ui64 redMs = Light.GetRedMs(); 
+                ui64 greenMs = Light.GetGreenMs(); 
+ 
+                // Init on first pass 
+                if (LastRedMs == 0 && LastGreenMs == 0) { 
+                    SaveLast(count, redMs, greenMs); 
+                } 
+ 
+                // Recalculate new flag value if needed 
+                if (greenMs + redMs > LastGreenMs + LastRedMs + ReportPeriodMs) { 
+                    ui64 ratio = (redMs - LastRedMs) * 100 / (redMs - LastRedMs + greenMs - LastGreenMs); 
                     LastRedMsPs = (1000ull * (redMs - LastRedMs)) / (redMs - LastRedMs + greenMs - LastGreenMs);
-                    if (ratio < GreenRatio) {
-                        CurrentFlag = NKikimrWhiteboard::Green;
-                    } else if (ratio < YellowRatio) {
-                        CurrentFlag = NKikimrWhiteboard::Yellow;
-                    } else if (ratio < OrangeRatio) {
-                        CurrentFlag = NKikimrWhiteboard::Orange;
-                    } else {
-                        CurrentFlag = NKikimrWhiteboard::Red;
-                    }
-                    SaveLast(count, redMs, greenMs);
-                }
-
-                return CurrentFlag;
-            }
-        private:
-            void SaveLast(ui64 count, ui64 redMs, ui64 greenMs) {
-                LastCount = count;
-                LastRedMs = redMs;
-                LastGreenMs = greenMs;
-            }
-        };
-    private:
+                    if (ratio < GreenRatio) { 
+                        CurrentFlag = NKikimrWhiteboard::Green; 
+                    } else if (ratio < YellowRatio) { 
+                        CurrentFlag = NKikimrWhiteboard::Yellow; 
+                    } else if (ratio < OrangeRatio) { 
+                        CurrentFlag = NKikimrWhiteboard::Orange; 
+                    } else { 
+                        CurrentFlag = NKikimrWhiteboard::Red; 
+                    } 
+                    SaveLast(count, redMs, greenMs); 
+                } 
+ 
+                return CurrentFlag; 
+            } 
+        private: 
+            void SaveLast(ui64 count, ui64 redMs, ui64 greenMs) { 
+                LastCount = count; 
+                LastRedMs = redMs; 
+                LastGreenMs = greenMs; 
+            } 
+        }; 
+    private: 
         TVector<TSource> Sources;
         NKikimrWhiteboard::EFlag LastFlag = NKikimrWhiteboard::Grey;
-    public:
-        void AddSource(const TLightBase& light) {
-            Sources.emplace_back(light);
-        }
-
+    public: 
+        void AddSource(const TLightBase& light) { 
+            Sources.emplace_back(light); 
+        } 
+ 
         void RemoveSources() {
             Sources.clear();
         }
@@ -162,35 +162,35 @@ class TPDiskActor : public TActorBootstrapped<TPDiskActor> {
             return redMsPs;
         }
 
-        void Update(bool& resendRequired) {
-            NKikimrWhiteboard::EFlag flag = NKikimrWhiteboard::Green;
-            for (TSource& source : Sources) {
-                flag = Max(flag, source.GetFlag());
-            }
-            if (LastFlag != flag) {
-                LastFlag = flag;
-                resendRequired = true;
-            }
-        }
-
-        NKikimrWhiteboard::EFlag Get() const {
-            return LastFlag;
-        }
-
+        void Update(bool& resendRequired) { 
+            NKikimrWhiteboard::EFlag flag = NKikimrWhiteboard::Green; 
+            for (TSource& source : Sources) { 
+                flag = Max(flag, source.GetFlag()); 
+            } 
+            if (LastFlag != flag) { 
+                LastFlag = flag; 
+                resendRequired = true; 
+            } 
+        } 
+ 
+        NKikimrWhiteboard::EFlag Get() const { 
+            return LastFlag; 
+        } 
+ 
         void Render(IOutputStream& os) const {
-            switch (LastFlag) {
+            switch (LastFlag) { 
             case NKikimrWhiteboard::Grey:
-                break;
+                break; 
             default:
                 THtmlLightSignalRenderer(LastFlag, NKikimrWhiteboard::EFlag_Name(LastFlag)).Output(os);
-                break;
-            }
-        }
-    };
-
-    TWhiteboardFlag RealtimeFlag;
-    TWhiteboardFlag DeviceFlag;
-
+                break; 
+            } 
+        } 
+    }; 
+ 
+    TWhiteboardFlag RealtimeFlag; 
+    TWhiteboardFlag DeviceFlag; 
+ 
 public:
     static constexpr NKikimrServices::TActivity::EType ActorActivityType() {
         return NKikimrServices::TActivity::PDISK_ACTOR;
@@ -236,8 +236,8 @@ public:
 
         RealtimeFlag.RemoveSources();
         DeviceFlag.RemoveSources();
-        DeviceFlag.AddSource(PDisk->Mon.L6);
-
+        DeviceFlag.AddSource(PDisk->Mon.L6); 
+ 
         bool isOk = PDisk->Initialize(TlsActivationContext->ActorSystem(), SelfId());
 
         if (!isOk) {
@@ -788,14 +788,14 @@ public:
 
     void HandleWakeup() {
         Schedule(TDuration::MilliSeconds(Cfg->StatisticsUpdateIntervalMs), new TEvents::TEvWakeup());
-
-        TCpuTimer timer;
+ 
+        TCpuTimer timer; 
         PDisk->Mon.UpdatePercentileTrackers();
         PDisk->Mon.UpdateLights();
         const bool halt = PDisk->Mon.UpdateDeviceHaltCounters();
         PDisk->Mon.UpdateStats();
-        ui64 updatePercentileTrackersCycles = timer.Elapsed();
-
+        ui64 updatePercentileTrackersCycles = timer.Elapsed(); 
+ 
         if (halt) {
             Send(SelfId(), new TEvDeviceError("device halt too long"));
         }
@@ -815,12 +815,12 @@ public:
         } else {
             PDisk->WhiteboardReport(*request); // Send TEvWhiteboardReportResult inside
         }
+ 
 
-
-        LWPROBE(PDiskHandleWakeup, PDisk->PDiskId,
-                HPMilliSecondsFloat(updatePercentileTrackersCycles),
-                HPMilliSecondsFloat(whiteboardReportCycles),
-                HPMilliSecondsFloat(updateSchedulerCycles));
+        LWPROBE(PDiskHandleWakeup, PDisk->PDiskId, 
+                HPMilliSecondsFloat(updatePercentileTrackersCycles), 
+                HPMilliSecondsFloat(whiteboardReportCycles), 
+                HPMilliSecondsFloat(updateSchedulerCycles)); 
     }
 
     void Handle(NPDisk::TEvWhiteboardReportResult::TPtr &ev) {
@@ -835,15 +835,15 @@ public:
         if (result->DiskMetrics) {
             Send(NodeWardenServiceId, result->DiskMetrics.Release());
         }
-        bool sendFlags = false;
-        RealtimeFlag.Update(sendFlags);
-        DeviceFlag.Update(sendFlags);
+        bool sendFlags = false; 
+        RealtimeFlag.Update(sendFlags); 
+        DeviceFlag.Update(sendFlags); 
         AtomicSet(PDisk->NonRealTimeMs, RealtimeFlag.GetRedMsPs());
         AtomicSet(PDisk->SlowDeviceMs, DeviceFlag.GetRedMsPs());
-        if (sendFlags) {
+        if (sendFlags) { 
             Send(NodeWhiteboardServiceId, new NNodeWhiteboard::TEvWhiteboard::TEvPDiskStateUpdate(
-                PDisk->PDiskId, RealtimeFlag.Get(), DeviceFlag.Get()));
-        }
+                PDisk->PDiskId, RealtimeFlag.Get(), DeviceFlag.Get())); 
+        } 
     }
 
     void Handle(NPDisk::TEvDeviceError::TPtr &ev) {
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_blockdevice_async.cpp b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_blockdevice_async.cpp
index 34c20999b7..ea4d0bb6a4 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_blockdevice_async.cpp
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_blockdevice_async.cpp
@@ -33,8 +33,8 @@
 namespace NKikimr {
 namespace NPDisk {
 
-LWTRACE_USING(BLOBSTORAGE_PROVIDER);
-
+LWTRACE_USING(BLOBSTORAGE_PROVIDER); 
+ 
 constexpr ui64 MaxWaitingNoops = 256;
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -305,7 +305,7 @@ class TRealBlockDevice : public IBlockDevice {
 
             TAsyncIoOperationResult events[MaxEvents];
 
-            while(!Device.QuitCounter.IsBlocked() || Device.QuitCounter.Get()) {
+            while(!Device.QuitCounter.IsBlocked() || Device.QuitCounter.Get()) { 
                 i64 ret = Device.IoContext->GetEvents(1, MaxEvents, events, TDuration::MilliSeconds(WaitTimeoutMs));
                 if (ret == -static_cast<i64>(EIoResult::InterruptedSystemCall)) {
                     Device.Mon.DeviceInterruptedSystemCalls->Inc();
@@ -699,7 +699,7 @@ private:
 
     bool IsFileOpened;
     bool IsInitialized;
-    ui64 Reordering;
+    ui64 Reordering; 
     ui64 SeekCostNs;
     bool IsTrimEnabled;
     ui32 MaxQueuedCompletionActions;
@@ -716,7 +716,7 @@ private:
 
     ui64 DeviceInFlight;
     TFlightControl FlightControl;
-    TAtomicBlockCounter QuitCounter;
+    TAtomicBlockCounter QuitCounter; 
     TString LastWarning;
     TDeque<IAsyncIoOperation*> Trash;
     TMutex TrashMutex;
@@ -738,7 +738,7 @@ public:
         , SubmitThread(nullptr)
         , IsFileOpened(false)
         , IsInitialized(false)
-        , Reordering(reorderingCycles)
+        , Reordering(reorderingCycles) 
         , SeekCostNs(seekCostNs)
         , IsTrimEnabled(true)
         , MaxQueuedCompletionActions(maxQueuedCompletionActions)
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_drivemodel.h b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_drivemodel.h
index 2a0678dbd2..62fdde1ec8 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_drivemodel.h
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_drivemodel.h
@@ -23,7 +23,7 @@ protected:
     ui64 SeekTimeNsec;
     ui64 BulkReadBlockSizeBytes;
     ui64 BulkWriteBlockSizeBytes;
-    ui64 TrimSpeedBps;
+    ui64 TrimSpeedBps; 
     ui32 TotalChunksCount;
     ui64 SpeedBps[OP_TYPE_COUNT];
     ui64 SpeedBpsMin[OP_TYPE_COUNT];
@@ -188,14 +188,14 @@ public:
         return (ui64)bytesToProcess * 1000000000ull / Speed(chunkIdx, type);
     }
 
-    ui64 TrimTimeForSizeNs(ui64 bytesToTrim) const {
-        return (ui64)bytesToTrim * 1000000000ull / TrimSpeedBps;
-    }
-
-    bool IsTrimSupported() const {
-        return TrimSpeedBps > 0;
-    }
-
+    ui64 TrimTimeForSizeNs(ui64 bytesToTrim) const { 
+        return (ui64)bytesToTrim * 1000000000ull / TrimSpeedBps; 
+    } 
+ 
+    bool IsTrimSupported() const { 
+        return TrimSpeedBps > 0; 
+    } 
+ 
     ui64 SizeForTimeNs(ui64 durationNs, ui32 chunkIdx, EOperationType type) const {
         return Speed(chunkIdx, type) * durationNs / 1000000000ull;
     }
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl.cpp b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl.cpp
index d00fc0f220..c0dfb678dd 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl.cpp
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl.cpp
@@ -2982,7 +2982,7 @@ void TPDisk::Update() {
     ui64 realDuration = HPNanoSeconds(nowCycles - ForsetiRealTimeCycles);
     ui64 virtualDuration = ForsetiTimeNs - ForsetiPrevTimeNs;
     ui64 timeCorrection = 0;
-
+ 
     if (virtualDuration < realDuration) {
         // Correct virtual time to catch up with real time.
         timeCorrection = realDuration - virtualDuration;
@@ -2991,7 +2991,7 @@ void TPDisk::Update() {
         // Apply correction.
         ForsetiTimeNs += timeCorrection;
     }
-
+ 
     // Millibatch size in terms of virtual time
     ui64 maxDuration = DriveModel.TimeForSizeNs(milliBatchSize, TDriveModel::OP_TYPE_AVG);
     ui64 virtualDeadline = ForsetiTimeNs + maxDuration;
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_mon.cpp b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_mon.cpp
index a514e261ab..7b42f7ac97 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_mon.cpp
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_mon.cpp
@@ -7,7 +7,7 @@ namespace NKikimr {
 TPDiskMon::TPDiskMon(const TIntrusivePtr<NMonitoring::TDynamicCounters>& counters, ui32 pDiskId,
         TPDiskConfig *cfg)
     : Counters(counters)
-    , PDiskId(pDiskId)
+    , PDiskId(pDiskId) 
     , ChunksGroup(Counters->GetSubgroup("subsystem", "chunks"))
     , StateGroup(Counters->GetSubgroup("subsystem", "state"))
     , DeviceGroup(Counters->GetSubgroup("subsystem", "device"))
@@ -48,7 +48,7 @@ TPDiskMon::TPDiskMon(const TIntrusivePtr<NMonitoring::TDynamicCounters>& counter
     AtLeastOneVDiskNotLogged = StateGroup->GetCounter("AtLeastOneVDiskNotLogged");
     TooMuchLogChunks = StateGroup->GetCounter("TooMuchLogChunks");
     SerialNumberMismatched = StateGroup->GetCounter("SerialNumberMismatched");
-    L6. Initialize(StateGroup, "L6");
+    L6. Initialize(StateGroup, "L6"); 
     L7. Initialize(StateGroup, "L7");
     IdleLight.Initialize(StateGroup, "DeviceBusyPeriods", "DeviceIdleTimeMsPerSec", "DeviceBusyTimeMsPerSec");
 
@@ -125,12 +125,12 @@ TPDiskMon::TPDiskMon(const TIntrusivePtr<NMonitoring::TDynamicCounters>& counter
     WriteQueueHullHuge.Initialize(counters, "subsystem", "writeQueueHullHuge", "Time in millisec", percentiles);
     WriteQueueHullComp.Initialize(counters, "subsystem", "writeQueueHullComp", "Time in millisec", percentiles);
 
-    SensitiveBurst.Initialize(counters, "subsystem", "sensitiveBurst", "Time in millisec", percentiles);
-    BestEffortBurst.Initialize(counters, "subsystem", "bestEffortBurst", "Time in millisec", percentiles);
-
-    InputQLA.Initialize(counters, "subsystem", "inputQLA", "Queue length seen by arrivals", percentiles);
-    InputQCA.Initialize(counters, "subsystem", "inputQCA", "Queue cost seen by arrivals", percentiles);
+    SensitiveBurst.Initialize(counters, "subsystem", "sensitiveBurst", "Time in millisec", percentiles); 
+    BestEffortBurst.Initialize(counters, "subsystem", "bestEffortBurst", "Time in millisec", percentiles); 
 
+    InputQLA.Initialize(counters, "subsystem", "inputQLA", "Queue length seen by arrivals", percentiles); 
+    InputQCA.Initialize(counters, "subsystem", "inputQCA", "Queue cost seen by arrivals", percentiles); 
+ 
     LogOperationSizeBytes.Initialize(counters, "subsystem", "logOperationSize", "Size in bytes", percentiles);
     GetSyncLogSizeBytes.Initialize(counters, "subsystem", "getSyncLogSize", "Size in bytes", percentiles);
 
@@ -219,7 +219,7 @@ TPDiskMon::TPDiskMon(const TIntrusivePtr<NMonitoring::TDynamicCounters>& counter
 }
 
 NMonitoring::TDynamicCounters::TCounterPtr TPDiskMon::GetBusyPeriod(const TString& owner, const TString& queue) {
-    return SchedulerGroup->GetCounter("SchedulerBusyPeriod_" + owner + "_" + queue, true);
+    return SchedulerGroup->GetCounter("SchedulerBusyPeriod_" + owner + "_" + queue, true); 
 }
 
 void TPDiskMon::IncrementQueueTime(ui8 priorityClass, size_t timeMs) {
@@ -344,11 +344,11 @@ void TPDiskMon::UpdatePercentileTrackers() {
     WriteQueueHullHuge.Update();
     WriteQueueHullComp.Update();
 
-    SensitiveBurst.Update();
-    BestEffortBurst.Update();
+    SensitiveBurst.Update(); 
+    BestEffortBurst.Update(); 
 
-    InputQLA.Update();
-    InputQCA.Update();
+    InputQLA.Update(); 
+    InputQCA.Update(); 
 }
 
 void TPDiskMon::UpdateLights() {
@@ -357,7 +357,7 @@ void TPDiskMon::UpdateLights() {
         L6.Set(false, seqnoL6);
     }
 
-    L6. Update();
+    L6. Update(); 
     L7. Update();
     IdleLight.Update();
 }
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_mon.h b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_mon.h
index 38a0f73b7c..4192679a12 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_mon.h
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_mon.h
@@ -14,88 +14,88 @@ namespace NKikimr {
 
 struct TPDiskConfig;
 
-inline NHPTimer::STime HPNow() {
-    NHPTimer::STime ret;
-    GetTimeFast(&ret);
-    return ret;
-}
-
-inline double HPSecondsFloat(i64 cycles) {
-    if (cycles > 0) {
-        return double(cycles) / NHPTimer::GetClockRate();
-    } else {
-        return 0.0;
-    }
-}
-
+inline NHPTimer::STime HPNow() { 
+    NHPTimer::STime ret; 
+    GetTimeFast(&ret); 
+    return ret; 
+} 
+ 
+inline double HPSecondsFloat(i64 cycles) { 
+    if (cycles > 0) { 
+        return double(cycles) / NHPTimer::GetClockRate(); 
+    } else { 
+        return 0.0; 
+    } 
+} 
+ 
 inline double HPMilliSecondsFloat(i64 cycles) {
-    if (cycles > 0) {
+    if (cycles > 0) { 
         return double(cycles) * 1000.0 / NHPTimer::GetClockRate();
-    } else {
-        return 0;
-    }
-}
-
+    } else { 
+        return 0; 
+    } 
+} 
+ 
 inline ui64 HPMilliSeconds(i64 cycles) {
     return (ui64)HPMilliSecondsFloat(cycles);
 }
 
 inline ui64 HPMicroSecondsFloat(i64 cycles) {
-    if (cycles > 0) {
+    if (cycles > 0) { 
         return double(cycles) * 1000000.0 / NHPTimer::GetClockRate();
-    } else {
-        return 0;
-    }
-}
-
-inline ui64 HPMicroSeconds(i64 cycles) {
+    } else { 
+        return 0; 
+    } 
+} 
+ 
+inline ui64 HPMicroSeconds(i64 cycles) { 
     return (ui64)HPMicroSecondsFloat(cycles);
-}
-
-inline ui64 HPNanoSeconds(i64 cycles) {
-    if (cycles > 0) {
-        return ui64(double(cycles) * 1000000000.0 / NHPTimer::GetClockRate());
-    } else {
-        return 0;
-    }
-}
-
-inline ui64 HPCyclesNs(ui64 ns) {
-    return ui64(NHPTimer::GetClockRate() * double(ns) / 1000000000.0);
-}
-
-inline ui64 HPCyclesUs(ui64 us) {
-    return ui64(NHPTimer::GetClockRate() * double(us) / 1000000.0);
-}
-
-inline ui64 HPCyclesMs(ui64 ms) {
-    return ui64(NHPTimer::GetClockRate() * double(ms) / 1000.0);
-}
-
-class TLightBase {
-protected:
+} 
+ 
+inline ui64 HPNanoSeconds(i64 cycles) { 
+    if (cycles > 0) { 
+        return ui64(double(cycles) * 1000000000.0 / NHPTimer::GetClockRate()); 
+    } else { 
+        return 0; 
+    } 
+} 
+ 
+inline ui64 HPCyclesNs(ui64 ns) { 
+    return ui64(NHPTimer::GetClockRate() * double(ns) / 1000000000.0); 
+} 
+ 
+inline ui64 HPCyclesUs(ui64 us) { 
+    return ui64(NHPTimer::GetClockRate() * double(us) / 1000000.0); 
+} 
+ 
+inline ui64 HPCyclesMs(ui64 ms) { 
+    return ui64(NHPTimer::GetClockRate() * double(ms) / 1000.0); 
+} 
+ 
+class TLightBase { 
+protected: 
     TString Name;
-    NMonitoring::TDynamicCounters::TCounterPtr State; // Current state (0=OFF=green, 1=ON=red)
-    NMonitoring::TDynamicCounters::TCounterPtr Count; // Number of switches to ON state
-    NMonitoring::TDynamicCounters::TCounterPtr RedMs; // Time elapsed in ON state
-    NMonitoring::TDynamicCounters::TCounterPtr GreenMs; // Time elapsed in OFF state
+    NMonitoring::TDynamicCounters::TCounterPtr State; // Current state (0=OFF=green, 1=ON=red) 
+    NMonitoring::TDynamicCounters::TCounterPtr Count; // Number of switches to ON state 
+    NMonitoring::TDynamicCounters::TCounterPtr RedMs; // Time elapsed in ON state 
+    NMonitoring::TDynamicCounters::TCounterPtr GreenMs; // Time elapsed in OFF state 
 private:
-    ui64 RedCycles = 0;
-    ui64 GreenCycles = 0;
-    NHPTimer::STime AdvancedTill = 0;
-    NHPTimer::STime LastNow = 0;
-    ui64 UpdateThreshold = 0;
-public:
+    ui64 RedCycles = 0; 
+    ui64 GreenCycles = 0; 
+    NHPTimer::STime AdvancedTill = 0; 
+    NHPTimer::STime LastNow = 0; 
+    ui64 UpdateThreshold = 0; 
+public: 
     void Initialize(TIntrusivePtr<NMonitoring::TDynamicCounters>& counters, const TString& name) {
-        Name = name;
-        State = counters->GetCounter(name + "_state");
-        Count = counters->GetCounter(name + "_count", true);
-        RedMs = counters->GetCounter(name + "_redMs", true);
-        GreenMs = counters->GetCounter(name + "_greenMs", true);
-        UpdateThreshold = HPCyclesMs(100);
-        AdvancedTill = Now();
-    }
-
+        Name = name; 
+        State = counters->GetCounter(name + "_state"); 
+        Count = counters->GetCounter(name + "_count", true); 
+        RedMs = counters->GetCounter(name + "_redMs", true); 
+        GreenMs = counters->GetCounter(name + "_greenMs", true); 
+        UpdateThreshold = HPCyclesMs(100); 
+        AdvancedTill = Now(); 
+    } 
+ 
     void Initialize(TIntrusivePtr<NMonitoring::TDynamicCounters>& counters, const TString& countName,
             const TString& redMsName,const TString& greenMsName) {
         Count = counters->GetCounter(countName, true);
@@ -105,205 +105,205 @@ public:
         AdvancedTill = Now();
     }
 
-    ui64 GetCount() const {
-        return *Count;
-    }
-
-    ui64 GetRedMs() const {
-        return *RedMs;
-    }
-
-    ui64 GetGreenMs() const {
-        return *GreenMs;
-    }
-protected:
-    void Modify(bool state, bool prevState) {
-        if (state && !prevState) { // Switched to ON state
+    ui64 GetCount() const { 
+        return *Count; 
+    } 
+ 
+    ui64 GetRedMs() const { 
+        return *RedMs; 
+    } 
+ 
+    ui64 GetGreenMs() const { 
+        return *GreenMs; 
+    } 
+protected: 
+    void Modify(bool state, bool prevState) { 
+        if (state && !prevState) { // Switched to ON state 
             if (State) {
                 *State = true;
             }
-            (*Count)++;
-            return;
-        }
-        if (!state && prevState) { // Switched to OFF state
+            (*Count)++; 
+            return; 
+        } 
+        if (!state && prevState) { // Switched to OFF state 
             if (State) {
                 *State = false;
             }
-            return;
-        }
-    }
-
-    void Advance(bool state, NHPTimer::STime now) {
-        if (now == AdvancedTill) {
-            return;
-        }
-        Elapsed(state, now - AdvancedTill);
-        if (RedCycles > UpdateThreshold) {
-            *RedMs += CutMs(RedCycles);
-        }
-        if (GreenCycles > UpdateThreshold) {
-            *GreenMs += CutMs(GreenCycles);
-        }
-        AdvancedTill = now;
-    }
-
-    NHPTimer::STime Now() {
-        // Avoid time going backwards
-        NHPTimer::STime now = HPNow();
-        if (now < LastNow) {
-            now = LastNow;
-        }
-        LastNow = now;
-        return now;
-    }
-private:
-    void Elapsed(bool state, ui64 cycles) {
-        if (state) {
-            RedCycles += cycles;
-        } else {
-            GreenCycles += cycles;
-        }
-    }
-
-    ui64 CutMs(ui64& src) {
-        ui64 ms = HPMilliSeconds(src);
-        ui64 cycles = HPCyclesMs(ms);
-        src -= cycles;
-        return ms;
-    }
-};
-
-// Thread-safe light
-class TLight : public TLightBase {
-private:
-    struct TItem {
-        bool State;
-        bool Filled;
-        TItem(bool state = false, bool filled = false)
-            : State(state)
-            , Filled(filled)
-        {}
-    };
-
-    // Cyclic buffer to enforce event ordering by seqno
-    TSpinLock Lock;
-    size_t HeadIdx = 0; // Index of current state
-    size_t FilledCount = 0;
-    ui16 Seqno = 0; // Current seqno
-    TStackVec<TItem, 32> Data; // In theory should have not more than thread count items
-public:
-    TLight() {
-        InitData();
-    }
-
-    void Set(bool state, ui16 seqno) {
-        TGuard<TSpinLock> g(Lock);
-        Push(state, seqno);
-        bool prevState;
-        // Note that 'state' variable is being reused
-        NHPTimer::STime now = Now();
-        while (Pop(state, prevState)) {
-            Modify(state, prevState);
-            Advance(prevState, now);
-        }
-    }
-
-    void Update() {
-        TGuard<TSpinLock> g(Lock);
-        Advance(Data[HeadIdx].State, Now());
-    }
-
-private:
-    void InitData(bool state = false, bool filled = false) {
-        Data.clear();
-        Data.emplace_back(state, filled);
-        Data.resize(32);
-        HeadIdx = 0;
-    }
-
-    void Push(bool state, ui16 seqno) {
-        FilledCount++;
-        if (FilledCount == 1) { // First event must initialize seqno
-            Seqno = seqno;
-            InitData(state, true);
-            if (state) {
-                Modify(true, false);
-            }
-            return;
-        }
-        Y_VERIFY(seqno != Seqno, "ordering overflow or duplicate event headSeqno# %d seqno# %d state# %d filled# %d",
-                 (int)Seqno, (int)seqno, (int)state, (int)CountFilled());
-        ui16 diff = seqno;
-        diff -= Seqno; // Underflow is fine
-        size_t size = Data.size();
-        if (size <= diff) { // Buffer is full -- extend and move wrapped part
-            Data.resize(size * 2);
-            for (size_t i = 0; i < HeadIdx; i++) {
-                Data[size + i] = Data[i];
-                Data[i].Filled = false;
-            }
-        }
-        TItem& item = Data[(HeadIdx + diff) % Data.size()];
-        Y_VERIFY(!item.Filled, "ordering overflow or duplicate event headSeqno# %d seqno# %d state# %d filled# %d",
-                 (int)Seqno, (int)seqno, (int)state, (int)CountFilled());
-        item.Filled = true;
-        item.State = state;
-    }
-
-    bool Pop(bool& state, bool& prevState) {
-        size_t nextIdx = (HeadIdx + 1) % Data.size();
-        TItem& head = Data[HeadIdx];
-        TItem& next = Data[nextIdx];
-        if (!head.Filled || !next.Filled) {
-            return false;
-        }
-        state = next.State;
-        prevState = head.State;
-        head.Filled = false;
-        HeadIdx = nextIdx;
-        Seqno++; // Overflow is fine
-        FilledCount--;
-        if (FilledCount == 1 && Data.size() > 32) {
+            return; 
+        } 
+    } 
+ 
+    void Advance(bool state, NHPTimer::STime now) { 
+        if (now == AdvancedTill) { 
+            return; 
+        } 
+        Elapsed(state, now - AdvancedTill); 
+        if (RedCycles > UpdateThreshold) { 
+            *RedMs += CutMs(RedCycles); 
+        } 
+        if (GreenCycles > UpdateThreshold) { 
+            *GreenMs += CutMs(GreenCycles); 
+        } 
+        AdvancedTill = now; 
+    } 
+ 
+    NHPTimer::STime Now() { 
+        // Avoid time going backwards 
+        NHPTimer::STime now = HPNow(); 
+        if (now < LastNow) { 
+            now = LastNow; 
+        } 
+        LastNow = now; 
+        return now; 
+    } 
+private: 
+    void Elapsed(bool state, ui64 cycles) { 
+        if (state) { 
+            RedCycles += cycles; 
+        } else { 
+            GreenCycles += cycles; 
+        } 
+    } 
+ 
+    ui64 CutMs(ui64& src) { 
+        ui64 ms = HPMilliSeconds(src); 
+        ui64 cycles = HPCyclesMs(ms); 
+        src -= cycles; 
+        return ms; 
+    } 
+}; 
+ 
+// Thread-safe light 
+class TLight : public TLightBase { 
+private: 
+    struct TItem { 
+        bool State; 
+        bool Filled; 
+        TItem(bool state = false, bool filled = false) 
+            : State(state) 
+            , Filled(filled) 
+        {} 
+    }; 
+ 
+    // Cyclic buffer to enforce event ordering by seqno 
+    TSpinLock Lock; 
+    size_t HeadIdx = 0; // Index of current state 
+    size_t FilledCount = 0; 
+    ui16 Seqno = 0; // Current seqno 
+    TStackVec<TItem, 32> Data; // In theory should have not more than thread count items 
+public: 
+    TLight() { 
+        InitData(); 
+    } 
+ 
+    void Set(bool state, ui16 seqno) { 
+        TGuard<TSpinLock> g(Lock); 
+        Push(state, seqno); 
+        bool prevState; 
+        // Note that 'state' variable is being reused 
+        NHPTimer::STime now = Now(); 
+        while (Pop(state, prevState)) { 
+            Modify(state, prevState); 
+            Advance(prevState, now); 
+        } 
+    } 
+ 
+    void Update() { 
+        TGuard<TSpinLock> g(Lock); 
+        Advance(Data[HeadIdx].State, Now()); 
+    } 
+ 
+private: 
+    void InitData(bool state = false, bool filled = false) { 
+        Data.clear(); 
+        Data.emplace_back(state, filled); 
+        Data.resize(32); 
+        HeadIdx = 0; 
+    } 
+ 
+    void Push(bool state, ui16 seqno) { 
+        FilledCount++; 
+        if (FilledCount == 1) { // First event must initialize seqno 
+            Seqno = seqno; 
             InitData(state, true);
-        }
-        return true;
-    }
-
-    size_t CountFilled() const {
-        size_t ret = 0;
-        for (const TItem& item : Data) {
-            ret += item.Filled;
-        }
-        return ret;
-    }
-};
-
-class TBurstmeter {
-private:
-    TBucketQuoter<i64, TSpinLock, THPTimerUs> Bucket;
+            if (state) { 
+                Modify(true, false); 
+            } 
+            return; 
+        } 
+        Y_VERIFY(seqno != Seqno, "ordering overflow or duplicate event headSeqno# %d seqno# %d state# %d filled# %d", 
+                 (int)Seqno, (int)seqno, (int)state, (int)CountFilled()); 
+        ui16 diff = seqno; 
+        diff -= Seqno; // Underflow is fine 
+        size_t size = Data.size(); 
+        if (size <= diff) { // Buffer is full -- extend and move wrapped part 
+            Data.resize(size * 2); 
+            for (size_t i = 0; i < HeadIdx; i++) { 
+                Data[size + i] = Data[i]; 
+                Data[i].Filled = false; 
+            } 
+        } 
+        TItem& item = Data[(HeadIdx + diff) % Data.size()]; 
+        Y_VERIFY(!item.Filled, "ordering overflow or duplicate event headSeqno# %d seqno# %d state# %d filled# %d", 
+                 (int)Seqno, (int)seqno, (int)state, (int)CountFilled()); 
+        item.Filled = true; 
+        item.State = state; 
+    } 
+ 
+    bool Pop(bool& state, bool& prevState) { 
+        size_t nextIdx = (HeadIdx + 1) % Data.size(); 
+        TItem& head = Data[HeadIdx]; 
+        TItem& next = Data[nextIdx]; 
+        if (!head.Filled || !next.Filled) { 
+            return false; 
+        } 
+        state = next.State; 
+        prevState = head.State; 
+        head.Filled = false; 
+        HeadIdx = nextIdx; 
+        Seqno++; // Overflow is fine 
+        FilledCount--; 
+        if (FilledCount == 1 && Data.size() > 32) { 
+            InitData(state, true); 
+        } 
+        return true; 
+    } 
+ 
+    size_t CountFilled() const { 
+        size_t ret = 0; 
+        for (const TItem& item : Data) { 
+            ret += item.Filled; 
+        } 
+        return ret; 
+    } 
+}; 
+ 
+class TBurstmeter { 
+private: 
+    TBucketQuoter<i64, TSpinLock, THPTimerUs> Bucket; 
     NMonitoring::TPercentileTrackerLg<5, 4, 15> Tracker;
-public:
-    TBurstmeter()
-        : Bucket(1000ull * 1000ull * 1000ull, 0)
-    {}
-
-    void Initialize(const TIntrusivePtr<NMonitoring::TDynamicCounters> &counters,
+public: 
+    TBurstmeter() 
+        : Bucket(1000ull * 1000ull * 1000ull, 0) 
+    {} 
+ 
+    void Initialize(const TIntrusivePtr<NMonitoring::TDynamicCounters> &counters, 
                     const TString& group, const TString& subgroup, const TString& name,
                     const TVector<float> &thresholds) {
-        Tracker.Initialize(counters, group, subgroup, name, thresholds);
-    }
-
-    double Increment(ui64 tokens) {
-        double burst = -double(Bucket.UseAndFill(tokens)) / (1000000ull);
-        Tracker.Increment(burst);
-        return burst;
-    }
-
-    void Update() {
-        Tracker.Update();
-    }
-};
-
+        Tracker.Initialize(counters, group, subgroup, name, thresholds); 
+    } 
+ 
+    double Increment(ui64 tokens) { 
+        double burst = -double(Bucket.UseAndFill(tokens)) / (1000000ull); 
+        Tracker.Increment(burst); 
+        return burst; 
+    } 
+ 
+    void Update() { 
+        Tracker.Update(); 
+    } 
+}; 
+ 
 class THistogram {
 private:
     NMonitoring::THistogramPtr Histo;
@@ -475,7 +475,7 @@ struct TPDiskMon {
     };
 
     TIntrusivePtr<NMonitoring::TDynamicCounters> Counters;
-    ui32 PDiskId;
+    ui32 PDiskId; 
 
     // chunk states subgroup
     TIntrusivePtr<NMonitoring::TDynamicCounters> ChunksGroup;
@@ -578,18 +578,18 @@ struct TPDiskMon {
     TDurationTracker WriteQueueHullHuge;
     TDurationTracker WriteQueueHullComp;
 
-    // incoming flow burstiness
-    TBurstmeter SensitiveBurst;
-    TBurstmeter BestEffortBurst;
-
-    // queue length seen by arriving request in front of it (QLA = Queue Length at Arrival)
+    // incoming flow burstiness 
+    TBurstmeter SensitiveBurst; 
+    TBurstmeter BestEffortBurst; 
+ 
+    // queue length seen by arriving request in front of it (QLA = Queue Length at Arrival) 
     using TQLATracker = NMonitoring::TPercentileTrackerLg<5, 4, 15>;
-    TQLATracker InputQLA; // for PDisk.InputQueue
-
-    // queue cost seen by arriving request in front of it (QCA = Queue Cost at Arrival)
+    TQLATracker InputQLA; // for PDisk.InputQueue 
+ 
+    // queue cost seen by arriving request in front of it (QCA = Queue Cost at Arrival) 
     using TQCATracker = NMonitoring::TPercentileTrackerLg<5, 4, 15>;
-    TQCATracker InputQCA; // for PDisk.InputQueue
-
+    TQCATracker InputQCA; // for PDisk.InputQueue 
+ 
     // log cumulative size bytes
     // <BASE_BITS, EXP_BITS, FRAME_COUNT>
     using TSizeTracker = NMonitoring::TPercentileTrackerLg<5, 4, 15>;
@@ -616,7 +616,7 @@ struct TPDiskMon {
     THistogram GetResponseHullOnlineOther;
     THistogram GetResponseHullLoad;
     THistogram GetResponseHullLow;
-    // write response time
+    // write response time 
     THistogram WriteResponseSyncLog;
     THistogram WriteResponseHullFresh;
     THistogram WriteResponseHullHuge;
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_requestimpl.h b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_requestimpl.h
index 61c0996e08..9147eef353 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_requestimpl.h
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_requestimpl.h
@@ -5,7 +5,7 @@
 #include "blobstorage_pdisk_data.h"
 #include "blobstorage_pdisk_drivemodel.h"
 #include "blobstorage_pdisk_internal_interface.h"
-#include "blobstorage_pdisk_mon.h"
+#include "blobstorage_pdisk_mon.h" 
 #include "blobstorage_pdisk_request_id.h"
 
 #include <ydb/core/blobstorage/base/vdisk_priorities.h>
@@ -29,7 +29,7 @@ enum class EOwnerGroupType {
 //
 class TRequestBase : public TThrRefBase {
 public:
-    // Identification
+    // Identification 
     const TActorId Sender;
     const TReqId ReqId;
     TOwner Owner;
@@ -37,37 +37,37 @@ public:
     ui8 PriorityClass;
     EOwnerGroupType OwnerGroupType;
 
-    // Classification
-    ui64 TotalCost = 0; // Total request cost in nanoseconds
+    // Classification 
+    ui64 TotalCost = 0; // Total request cost in nanoseconds 
     ui8 GateId = 0;
-    bool IsSensitive = false; // QoS: sensitive or best-effort
-    bool IsFast = false; // QoS: best-effort with improved latency
-
-    // Scheduling
-    NHPTimer::STime Deadline = 0; // Deadline from request input to rt-scheduler
-    ui64 Cost = 0; // Remaining cost in nanoseconds
+    bool IsSensitive = false; // QoS: sensitive or best-effort 
+    bool IsFast = false; // QoS: best-effort with improved latency 
+ 
+    // Scheduling 
+    NHPTimer::STime Deadline = 0; // Deadline from request input to rt-scheduler 
+    ui64 Cost = 0; // Remaining cost in nanoseconds 
     NSchLab::EJobKind JobKind = NSchLab::EJobKind::JobKindRequest;
-
-    // Monitoring
-    const NHPTimer::STime CreationTime;
-    NHPTimer::STime InputTime = 0; // Time of entrance to rt-scheduler
+ 
+    // Monitoring 
+    const NHPTimer::STime CreationTime; 
+    NHPTimer::STime InputTime = 0; // Time of entrance to rt-scheduler 
     NHPTimer::STime ScheduleTime = 0;
-
-    // Tracing
+ 
+    // Tracing 
     mutable NWilson::TTraceId TraceId;
-    mutable NLWTrace::TOrbit Orbit;
-public:
+    mutable NLWTrace::TOrbit Orbit; 
+public: 
     TRequestBase(const TActorId &sender, TReqId reqId, TOwner owner, TOwnerRound ownerRound, ui8 priorityClass,
             NWilson::TTraceId traceId = {})
         : Sender(sender)
-        , ReqId(reqId)
+        , ReqId(reqId) 
         , Owner(owner)
         , OwnerRound(ownerRound)
         , PriorityClass(priorityClass)
         , OwnerGroupType(EOwnerGroupType::Dynamic)
-        , CreationTime(HPNow())
+        , CreationTime(HPNow()) 
         , TraceId(std::move(traceId))
-    {}
+    {} 
 
     void SetOwnerGroupType(bool isStaticGroupOwner) {
         OwnerGroupType = (isStaticGroupOwner ? EOwnerGroupType::Static : EOwnerGroupType::Dynamic);
@@ -88,26 +88,26 @@ public:
         return HPMilliSecondsFloat(now - CreationTime);
     }
 
-    ui64 GetCost() const {
+    ui64 GetCost() const { 
         return Cost;
     }
 
-    ui64 GetCostCycles() const {
-        return HPCyclesNs(Cost);
-    }
-
-    // Takes slack (duration free to do non-sensitive requests)
-    // and reserve it or part of it for this request execution
-    // On return slack contains:
-    //  - slack duration left after reservation
-    //  - or TDuration::Zero() if all available slack was reserved
-    // Returns true if reservation has occured, false otherwise
-    virtual bool TryStealSlack(ui64& slackNs, const TDriveModel &drive, ui64 appendBlockSize, bool adhesion) {
-        // Default implementation appropriate for all sensitive requests
-        // Must be overriden for best-effort requests
-        Y_UNUSED(slackNs); Y_UNUSED(drive); Y_UNUSED(appendBlockSize); Y_UNUSED(adhesion);
-        return true;
-    }
+    ui64 GetCostCycles() const { 
+        return HPCyclesNs(Cost); 
+    } 
+ 
+    // Takes slack (duration free to do non-sensitive requests) 
+    // and reserve it or part of it for this request execution 
+    // On return slack contains: 
+    //  - slack duration left after reservation 
+    //  - or TDuration::Zero() if all available slack was reserved 
+    // Returns true if reservation has occured, false otherwise 
+    virtual bool TryStealSlack(ui64& slackNs, const TDriveModel &drive, ui64 appendBlockSize, bool adhesion) { 
+        // Default implementation appropriate for all sensitive requests 
+        // Must be overriden for best-effort requests 
+        Y_UNUSED(slackNs); Y_UNUSED(drive); Y_UNUSED(appendBlockSize); Y_UNUSED(adhesion); 
+        return true; 
+    } 
 
     static void AbortDelete(TRequestBase* request, TActorSystem* actorSystem);
 };
@@ -257,7 +257,7 @@ public:
     ui32 EstimatedChunkIdx;
     TString Data;
     ui64 LsnSegmentStart; // Additional data, for sanity checks only.
-    ui64 Lsn; // Log sequence number
+    ui64 Lsn; // Log sequence number 
     void *Cookie;
     TCallback LogCallback;
     NPDisk::TCommitRecord CommitRecord;
@@ -331,12 +331,12 @@ public:
     ui64 RemainingSize;
     TCompletionChunkRead *FinalCompletion = nullptr;
     TAtomicBase Index;
-    bool IsReplied = false;
+    bool IsReplied = false; 
 
     ui64 SlackSize;
     ui64 FirstSector = 0;
     ui64 LastSector = 0;
-
+ 
     // Request is placed in scheduler's queues as raw pointer. To avoid deletion
     // in such situation request will take owning to self when pushed to
     // scheduler and drop owning when poped from scheduler
@@ -351,7 +351,7 @@ public:
         , Size(ev.Size)
         , Cookie(ev.Cookie)
         , RemainingSize(ev.Size)
-        , SlackSize(Max<ui32>())
+        , SlackSize(Max<ui32>()) 
         , DoubleFreeCanary(ReferenceCanary)
     {
         Index = AtomicIncrement(LastIndex);
@@ -378,19 +378,19 @@ public:
     }
 
     bool TryStealSlack(ui64& slackNs, const TDriveModel &drive, ui64 appendBlockSize, bool adhesion) override {
-        Y_UNUSED(appendBlockSize); Y_UNUSED(adhesion);
-        // Calculate how many bytes can we read within given slack (with single seek)
+        Y_UNUSED(appendBlockSize); Y_UNUSED(adhesion); 
+        // Calculate how many bytes can we read within given slack (with single seek) 
         SlackSize = (ui32)drive.SizeForTimeNs(slackNs > drive.SeekTimeNs()? slackNs - drive.SeekTimeNs(): 0,
                 ChunkIdx, TDriveModel::OP_TYPE_READ);
         if (SlackSize > 0) { // TODO[serxa]: actually there is some lower bound,
                              //              because we are not reading less than some number of bytes
-            SlackSize = Min(SlackSize, RemainingSize);
+            SlackSize = Min(SlackSize, RemainingSize); 
             ui64 costNs = drive.SeekTimeNs() + drive.TimeForSizeNs((ui64)SlackSize, ChunkIdx, TDriveModel::OP_TYPE_READ);
-            slackNs -= costNs;
-            return true;
-        } else {
-            return false;
-        }
+            slackNs -= costNs; 
+            return true; 
+        } else { 
+            return false; 
+        } 
     }
 };
 
@@ -446,15 +446,15 @@ public:
     bool IsReplied = false;
 
     ui32 TotalSize;
-    ui32 CurrentPart = 0;
-    ui32 CurrentPartOffset = 0;
-    ui32 RemainingSize = 0;
+    ui32 CurrentPart = 0; 
+    ui32 CurrentPartOffset = 0; 
+    ui32 RemainingSize = 0; 
     ui32 UnenqueuedSize;
     TAtomicBase Index;
 
-    ui32 SlackSize;
+    ui32 SlackSize; 
     ui32 BytesWritten = 0;
-
+ 
     THolder<NPDisk::TCompletionAction> Completion;
 
     TChunkWrite(const NPDisk::TEvChunkWrite &ev, const TActorId &sender, TReqId reqId, NWilson::TTraceId traceId)
@@ -474,7 +474,7 @@ public:
         }
         TotalSize = RemainingSize;
         UnenqueuedSize = RemainingSize;
-        SlackSize = Max<ui32>();
+        SlackSize = Max<ui32>(); 
     }
 
     ERequestType GetType() const override {
@@ -485,17 +485,17 @@ public:
         Cost = drive.SeekTimeNs() + drive.TimeForSizeNs((ui64)UnenqueuedSize, ChunkIdx, TDriveModel::OP_TYPE_WRITE);
     }
 
-    bool IsFinalIteration() {
-        return UnenqueuedSize <= SlackSize;
+    bool IsFinalIteration() { 
+        return UnenqueuedSize <= SlackSize; 
     }
-
+ 
     bool IsTotallyEnqueued() {
         return UnenqueuedSize == 0;
     }
 
     bool TryStealSlack(ui64& slackNs, const TDriveModel &drive, ui64 appendBlockSize, bool adhesion) override {
-        // Calculate how many bytes can we write within given slack (with single seek)
-        // TODO[serxa]: use write speed? but there is no write speed in drive model!
+        // Calculate how many bytes can we write within given slack (with single seek) 
+        // TODO[serxa]: use write speed? but there is no write speed in drive model! 
         SlackSize = (ui32)drive.SizeForTimeNs(slackNs > drive.SeekTimeNs()? slackNs - drive.SeekTimeNs(): 0,
                 ChunkIdx, TDriveModel::OP_TYPE_WRITE);
         // actually there is some lower bound, because we are not writing less than appendBlockSize bytes
@@ -504,15 +504,15 @@ public:
                 SlackSize / appendBlockSize * appendBlockSize,
                 (UnenqueuedSize + appendBlockSize - 1) / appendBlockSize * appendBlockSize);
             ui64 costNs = (adhesion? 0: drive.SeekTimeNs()) + drive.TimeForSizeNs((ui64)SlackSize, ChunkIdx, TDriveModel::OP_TYPE_WRITE);
-            slackNs -= costNs;
-            return true;
-        } else {
-            return false;
-        }
-    }
+            slackNs -= costNs; 
+            return true; 
+        } else { 
+            return false; 
+        } 
+    } 
 };
 
-//
+// 
 // TChunkWritePiece
 //
 class TChunkWritePiece : public TRequestBase {
@@ -539,41 +539,41 @@ public:
 };
 
 //
-// TChunkTrim
-//
-class TChunkTrim : public TRequestBase {
-public:
-    ui32 ChunkIdx;
-    ui32 Offset;
-    ui64 Size;
+// TChunkTrim 
+// 
+class TChunkTrim : public TRequestBase { 
+public: 
+    ui32 ChunkIdx; 
+    ui32 Offset; 
+    ui64 Size; 
 
     TChunkTrim(ui32 chunkIdx, ui32 offset, ui64 size, TAtomicBase reqIdx)
         : TRequestBase(TActorId(), TReqId(TReqId::ChunkTrim, reqIdx), OwnerUnallocated, TOwnerRound(0), NPriInternal::Trim)
-        , ChunkIdx(chunkIdx)
-        , Offset(offset)
-        , Size(size)
-    {}
-
+        , ChunkIdx(chunkIdx) 
+        , Offset(offset) 
+        , Size(size) 
+    {} 
+ 
     ERequestType GetType() const override {
-        return ERequestType::RequestChunkTrim;
-    }
-
-    void EstimateCost(const TDriveModel &drive) override {
-        Cost = drive.TrimTimeForSizeNs(Size);
-    }
-
+        return ERequestType::RequestChunkTrim; 
+    } 
+ 
+    void EstimateCost(const TDriveModel &drive) override { 
+        Cost = drive.TrimTimeForSizeNs(Size); 
+    } 
+ 
     bool TryStealSlack(ui64& slackNs, const TDriveModel &drive, ui64 appendBlockSize, bool adhesion) override {
-        Y_UNUSED(drive); Y_UNUSED(appendBlockSize); Y_UNUSED(adhesion);
-        if (slackNs > Cost) {
-            slackNs -= Cost;
-            return true;
-        } else {
-            return true;
-        }
-    }
-};
-
-
+        Y_UNUSED(drive); Y_UNUSED(appendBlockSize); Y_UNUSED(adhesion); 
+        if (slackNs > Cost) { 
+            slackNs -= Cost; 
+            return true; 
+        } else { 
+            return true; 
+        } 
+    } 
+}; 
+ 
+ 
 //
 // THarakiri
 //
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_atomicblockcounter.cpp b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_atomicblockcounter.cpp
index 3ea3033b19..963cd7254c 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_atomicblockcounter.cpp
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_atomicblockcounter.cpp
@@ -1,40 +1,40 @@
-#include "blobstorage_pdisk_util_atomicblockcounter.h"
+#include "blobstorage_pdisk_util_atomicblockcounter.h" 
 
 namespace NKikimr {
 namespace NPDisk {
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// TAtomicBlockCounter
+// TAtomicBlockCounter 
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 bool TAtomicBlockCounter::IsBlocked() const noexcept {
-    return GetBlocked(AtomicGet(Data));
-}
+    return GetBlocked(AtomicGet(Data)); 
+} 
 
 void TAtomicBlockCounter::Block(ui64 flag, TResult& res) noexcept {
-    while (true) {
-        ui64 prevData = AtomicGet(Data);
-        if (prevData & flag) {
-            FillResult(prevData, prevData, res);
-            return; // Already blocked
-        }
-        ui64 data = NextSeqno(prevData | flag);
-        if (AtomicCas(&Data, data, prevData)) {
-            FillResult(prevData, data, res);
-            return;
-        }
-    }
+    while (true) { 
+        ui64 prevData = AtomicGet(Data); 
+        if (prevData & flag) { 
+            FillResult(prevData, prevData, res); 
+            return; // Already blocked 
+        } 
+        ui64 data = NextSeqno(prevData | flag); 
+        if (AtomicCas(&Data, data, prevData)) { 
+            FillResult(prevData, data, res); 
+            return; 
+        } 
+    } 
 }
 
 void TAtomicBlockCounter::Unblock(ui64 flag, TResult& res) noexcept {
-    while (true) {
+    while (true) { 
         ui64 prevData = AtomicGet(Data);
-        if (!(prevData & flag)) {
-            FillResult(prevData, prevData, res);
-            return; // Already unblocked
-        }
-        ui64 data = NextSeqno(prevData & ~flag);
-        if (AtomicCas(&Data, data, prevData)) {
-            FillResult(prevData, data, res);
+        if (!(prevData & flag)) { 
+            FillResult(prevData, prevData, res); 
+            return; // Already unblocked 
+        } 
+        ui64 data = NextSeqno(prevData & ~flag); 
+        if (AtomicCas(&Data, data, prevData)) { 
+            FillResult(prevData, data, res); 
             return;
         }
     }
@@ -42,122 +42,122 @@ void TAtomicBlockCounter::Unblock(ui64 flag, TResult& res) noexcept {
 
 ui64 TAtomicBlockCounter::Add(ui64 value) noexcept {
     Y_VERIFY_S(value > 0, "zero value# " << value);
-    while (true) {
+    while (true) { 
         ui64 prevData = AtomicGet(Data);
-        if (GetBlocked(prevData)) {
-            return 0; // Add is forbidden iff blocked
-        }
-        ui64 data = NextSeqno(CheckedAddCounter(prevData, value));
-        if (AtomicCas(&Data, data, prevData)) {
-            return GetCounter(data);
-        }
-    }
-}
-
+        if (GetBlocked(prevData)) { 
+            return 0; // Add is forbidden iff blocked 
+        } 
+        ui64 data = NextSeqno(CheckedAddCounter(prevData, value)); 
+        if (AtomicCas(&Data, data, prevData)) { 
+            return GetCounter(data); 
+        } 
+    } 
+} 
+ 
 ui64 TAtomicBlockCounter::Sub(ui64 value) noexcept {
     Y_VERIFY_S(value > 0, "zero value# " << value);
-    while (true) {
-        ui64 prevData = AtomicGet(Data);
-        ui64 data = NextSeqno(CheckedSubCounter(prevData, value));
-        if (AtomicCas(&Data, data, prevData)) {
-            return GetCounter(data);
-        }
-    }
-}
-
+    while (true) { 
+        ui64 prevData = AtomicGet(Data); 
+        ui64 data = NextSeqno(CheckedSubCounter(prevData, value)); 
+        if (AtomicCas(&Data, data, prevData)) { 
+            return GetCounter(data); 
+        } 
+    } 
+} 
+ 
 ui64 TAtomicBlockCounter::ThresholdAdd(ui64 value, ui64 threshold, TAtomicBlockCounter::TResult& res) noexcept {
     Y_VERIFY_S(value > 0, "zero value# " << value);
-    while (true) {
-        ui64 prevData = AtomicGet(Data);
-        if (GetBlocked(prevData)) { // Add is forbidden iff blocked
-            FillResult(prevData, prevData, res);
+    while (true) { 
+        ui64 prevData = AtomicGet(Data); 
+        if (GetBlocked(prevData)) { // Add is forbidden iff blocked 
+            FillResult(prevData, prevData, res); 
             return 0;
         }
-        ui64 data = NextSeqno(ThresholdBlock(CheckedAddCounter(prevData, value), threshold));
-        if (AtomicCas(&Data, data, prevData)) {
-            FillResult(prevData, data, res);
-            return GetCounter(data);
-        }
+        ui64 data = NextSeqno(ThresholdBlock(CheckedAddCounter(prevData, value), threshold)); 
+        if (AtomicCas(&Data, data, prevData)) { 
+            FillResult(prevData, data, res); 
+            return GetCounter(data); 
+        } 
     }
 }
 
 ui64 TAtomicBlockCounter::ThresholdSub(ui64 value, ui64 threshold, TAtomicBlockCounter::TResult& res) noexcept {
     Y_VERIFY_S(value > 0, "zero value# " << value);
-    while (true) {
+    while (true) { 
         ui64 prevData = AtomicGet(Data);
-        ui64 data = NextSeqno(ThresholdBlock(CheckedSubCounter(prevData, value), threshold));
-        if (AtomicCas(&Data, data, prevData)) {
-            FillResult(prevData, data, res);
-            return GetCounter(data);
-        }
+        ui64 data = NextSeqno(ThresholdBlock(CheckedSubCounter(prevData, value), threshold)); 
+        if (AtomicCas(&Data, data, prevData)) { 
+            FillResult(prevData, data, res); 
+            return GetCounter(data); 
+        } 
     }
-}
-
+} 
+ 
 ui64 TAtomicBlockCounter::ThresholdUpdate(ui64 threshold, TAtomicBlockCounter::TResult& res) noexcept {
-    while (true) {
-        ui64 prevData = AtomicGet(Data);
-        ui64 data = NextSeqno(ThresholdBlock(prevData, threshold));
-        if (AtomicCas(&Data, data, prevData)) {
-            FillResult(prevData, data, res);
-            return GetCounter(data);
-        }
-    }
-}
-
+    while (true) { 
+        ui64 prevData = AtomicGet(Data); 
+        ui64 data = NextSeqno(ThresholdBlock(prevData, threshold)); 
+        if (AtomicCas(&Data, data, prevData)) { 
+            FillResult(prevData, data, res); 
+            return GetCounter(data); 
+        } 
+    } 
+} 
+ 
 ui64 TAtomicBlockCounter::Get() const noexcept {
-    return GetCounter(AtomicGet(Data));
-}
-
+    return GetCounter(AtomicGet(Data)); 
+} 
+ 
 ui64 TAtomicBlockCounter::CheckedAddCounter(ui64 prevData, ui64 value) noexcept {
     Y_VERIFY_S(!(value & ~CounterMask), "invalid value# " << value);
     Y_VERIFY_S(!((GetCounter(prevData) + value) & ~CounterMask),
              "overflow value# " << value << " prevData# " << GetCounter(prevData));
-    return prevData + value; // No overflow, so higher bits are untouched
-}
-
+    return prevData + value; // No overflow, so higher bits are untouched 
+} 
+ 
 ui64 TAtomicBlockCounter::CheckedSubCounter(ui64 prevData, ui64 value) noexcept {
     Y_VERIFY_S(!(value & ~CounterMask), "invalid value# " << value);
     Y_VERIFY_S(!((GetCounter(prevData) - value) & ~CounterMask),
              "underflow value# " << value << " prevData# " << GetCounter(prevData));
-    return prevData - value; // No underflow, so higher bits are untouched
-}
-
+    return prevData - value; // No underflow, so higher bits are untouched 
+} 
+ 
 void TAtomicBlockCounter::FillResult(ui64 prevData, ui64 data, TAtomicBlockCounter::TResult& res) noexcept {
-    res.PrevA = prevData & BlockAFlag;
-    res.PrevB = prevData & BlockBFlag;
-    res.A = data & BlockAFlag;
-    res.B = data & BlockBFlag;
-    res.Seqno = GetSeqno(data);
-    res.PrevSeqno = GetSeqno(prevData);
-}
-
+    res.PrevA = prevData & BlockAFlag; 
+    res.PrevB = prevData & BlockBFlag; 
+    res.A = data & BlockAFlag; 
+    res.B = data & BlockBFlag; 
+    res.Seqno = GetSeqno(data); 
+    res.PrevSeqno = GetSeqno(prevData); 
+} 
+ 
 bool TAtomicBlockCounter::GetBlocked(ui64 data) noexcept {
-    return data & BlockMask;
-}
-
+    return data & BlockMask; 
+} 
+ 
 ui16 TAtomicBlockCounter::GetSeqno(ui64 data) noexcept {
-    return (data & SeqnoMask) >> SeqnoShift;
-}
-
+    return (data & SeqnoMask) >> SeqnoShift; 
+} 
+ 
 ui64 TAtomicBlockCounter::GetCounter(ui64 data) noexcept {
     return data & CounterMask;
 }
 
 ui64 TAtomicBlockCounter::ThresholdBlock(ui64 data, ui64 threshold) noexcept {
-    if (GetCounter(data) > threshold) {
-        return data | BlockAFlag;
-    } else {
-        return data & ~BlockAFlag;
-    }
+    if (GetCounter(data) > threshold) { 
+        return data | BlockAFlag; 
+    } else { 
+        return data & ~BlockAFlag; 
+    } 
 }
 
 ui64 TAtomicBlockCounter::NextSeqno(ui64 data) noexcept {
-    if (GetSeqno(data) == Max<ui16>()) { // Overflow case
-        return data & ~SeqnoMask;
-    } else { // No overflow case
-        return data + (1ull << SeqnoShift);
-    }
-}
-
+    if (GetSeqno(data) == Max<ui16>()) { // Overflow case 
+        return data & ~SeqnoMask; 
+    } else { // No overflow case 
+        return data + (1ull << SeqnoShift); 
+    } 
+} 
+ 
 } // NPDisk
 } // NKikimr
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_atomicblockcounter.h b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_atomicblockcounter.h
index 4991facc94..6c16faae5a 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_atomicblockcounter.h
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_atomicblockcounter.h
@@ -5,96 +5,96 @@ namespace NKikimr {
 namespace NPDisk {
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// TAtomicBlockCounter
+// TAtomicBlockCounter 
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-struct TAtomicBlockCounter {
-    TAtomic Data = 0;
-
-    static constexpr ui64 BlockAFlag = (1ull << 63ull);
-    static constexpr ui64 BlockBFlag = (1ull << 62ull);
-    static constexpr ui64 BlockMask = BlockAFlag | BlockBFlag;
-    static constexpr ui64 SeqnoShift = 46ull;
-    static constexpr ui64 SeqnoMask = (0xFFFFull << SeqnoShift);
-    static constexpr ui64 CounterMask = ~(BlockMask|SeqnoMask);
-
-    struct TResult {
-        bool PrevA = false; // Block A state before operation
-        bool PrevB = false; // Block B state before operation
-        bool A = false; // Block A state after operation
-        bool B = false; // Block B state after operation
-        ui16 Seqno = 0;
-        ui16 PrevSeqno = 0;
+struct TAtomicBlockCounter { 
+    TAtomic Data = 0; 
+
+    static constexpr ui64 BlockAFlag = (1ull << 63ull); 
+    static constexpr ui64 BlockBFlag = (1ull << 62ull); 
+    static constexpr ui64 BlockMask = BlockAFlag | BlockBFlag; 
+    static constexpr ui64 SeqnoShift = 46ull; 
+    static constexpr ui64 SeqnoMask = (0xFFFFull << SeqnoShift); 
+    static constexpr ui64 CounterMask = ~(BlockMask|SeqnoMask); 
+
+    struct TResult { 
+        bool PrevA = false; // Block A state before operation 
+        bool PrevB = false; // Block B state before operation 
+        bool A = false; // Block A state after operation 
+        bool B = false; // Block B state after operation 
+        ui16 Seqno = 0; 
+        ui16 PrevSeqno = 0; 
 
         bool Toggled() const noexcept {
-            return WasBlocked() ^ IsBlocked();
-        }
-
+            return WasBlocked() ^ IsBlocked(); 
+        } 
+ 
         bool WasBlocked() const noexcept {
-            return PrevA || PrevB;
-        }
-
+            return PrevA || PrevB; 
+        } 
+ 
         bool IsBlocked() const noexcept {
-            return A || B;
-        }
-    };
-
+            return A || B; 
+        } 
+    }; 
+ 
     TAtomicBlockCounter() noexcept {}
-
+ 
     bool IsBlocked() const noexcept;
-
-    // Blocking
+ 
+    // Blocking 
     void Block(ui64 flag, TResult& res) noexcept;
     void BlockA() noexcept {
-        TResult res;
-        Block(BlockAFlag, res);
-    }
+        TResult res; 
+        Block(BlockAFlag, res); 
+    } 
     void BlockB() noexcept {
-        TResult res;
-        Block(BlockBFlag, res);
-    }
+        TResult res; 
+        Block(BlockBFlag, res); 
+    } 
     void BlockA(TResult& res) noexcept {
-        Block(BlockAFlag, res);
-    }
+        Block(BlockAFlag, res); 
+    } 
     void BlockB(TResult& res) noexcept {
-        Block(BlockBFlag, res);
-    }
-
-    // Unblocking
+        Block(BlockBFlag, res); 
+    } 
+ 
+    // Unblocking 
     void Unblock(ui64 flag, TResult& res) noexcept;
     void UnblockA() noexcept {
-        TResult res;
-        Unblock(BlockAFlag, res);
-    }
+        TResult res; 
+        Unblock(BlockAFlag, res); 
+    } 
     void UnblockB() noexcept {
-        TResult res;
-        Unblock(BlockBFlag, res);
-    }
+        TResult res; 
+        Unblock(BlockBFlag, res); 
+    } 
     void UnblockA(TResult& res) noexcept {
-        Unblock(BlockAFlag, res);
-    }
+        Unblock(BlockAFlag, res); 
+    } 
     void UnblockB(TResult& res) noexcept {
-        Unblock(BlockBFlag, res);
-    }
-
-    // Returns counter on success, 0 iff is blocked
+        Unblock(BlockBFlag, res); 
+    } 
+ 
+    // Returns counter on success, 0 iff is blocked 
     ui64 Add(ui64 value) noexcept;
     ui64 Increment() noexcept {
-        return Add(1);
-    }
-
+        return Add(1); 
+    } 
+ 
     ui64 Sub(ui64 value) noexcept;
     ui64 Decrement() noexcept {
-        return Sub(1);
-    }
-
-    // Operations with BlockA attached to Counter overflow over specified threshold
+        return Sub(1); 
+    } 
+ 
+    // Operations with BlockA attached to Counter overflow over specified threshold 
     ui64 ThresholdAdd(ui64 value, ui64 threshold, TResult& res) noexcept;
     ui64 ThresholdSub(ui64 value, ui64 threshold, TResult& res) noexcept;
     ui64 ThresholdUpdate(ui64 threshold, TResult& res) noexcept;
-
+ 
     ui64 Get() const noexcept;
-
-private:
+ 
+private: 
     inline static ui64 CheckedAddCounter(ui64 prevData, ui64 value) noexcept;
     inline static ui64 CheckedSubCounter(ui64 prevData, ui64 value) noexcept;
     inline static void FillResult(ui64 prevData, ui64 data, TResult& res) noexcept;
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_countedqueueoneone.h b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_countedqueueoneone.h
index fc2951466c..ef745da2d4 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_countedqueueoneone.h
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_countedqueueoneone.h
@@ -35,10 +35,10 @@ public:
         return Queue.Pop();
     }
 
-    T Head() {
-        return Queue.Head();
-    }
-
+    T Head() { 
+        return Queue.Head(); 
+    } 
+ 
     TAtomicBase GetWaitingSize() {
         return AtomicLoad(&SizeLowerEstimate);
     }
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_cputimer.h b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_cputimer.h
index 03d7d1ffe6..6e32cd43d5 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_cputimer.h
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_cputimer.h
@@ -1,24 +1,24 @@
-#pragma once
-#include "defs.h"
-
-#include <library/cpp/actors/util/datetime.h>
-
-namespace NKikimr {
-namespace NPDisk {
-
-struct TCpuTimer: private TNonCopyable {
-    ui64 Timestamp;
-
-    explicit TCpuTimer(ui64 ts = GetCycleCountFast()) {
-        Timestamp = ts;
-    }
-
-    ui64 Elapsed() {
-        ui64 ts = GetCycleCountFast();
-        DoSwap(Timestamp, ts);
-        return Timestamp - ts;
-    }
-};
-
-} // NPDisk
-} // NKikimr
+#pragma once 
+#include "defs.h" 
+ 
+#include <library/cpp/actors/util/datetime.h> 
+ 
+namespace NKikimr { 
+namespace NPDisk { 
+ 
+struct TCpuTimer: private TNonCopyable { 
+    ui64 Timestamp; 
+ 
+    explicit TCpuTimer(ui64 ts = GetCycleCountFast()) { 
+        Timestamp = ts; 
+    } 
+ 
+    ui64 Elapsed() { 
+        ui64 ts = GetCycleCountFast(); 
+        DoSwap(Timestamp, ts); 
+        return Timestamp - ts; 
+    } 
+}; 
+ 
+} // NPDisk 
+} // NKikimr 
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_ut.cpp b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_ut.cpp
index 97938cfcdc..edfb33b89e 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_ut.cpp
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_util_ut.cpp
@@ -1,5 +1,5 @@
-#include "defs.h"
-
+#include "defs.h" 
+ 
 #include "blobstorage_pdisk_chunk_id_formatter.h"
 #include "blobstorage_pdisk_data.h"
 #include "blobstorage_pdisk_driveestimator.h"
@@ -12,7 +12,7 @@
 #include "blobstorage_pdisk_util_atomicblockcounter.h"
 #include "blobstorage_pdisk_util_sector.h"
 #include "blobstorage_pdisk_util_wcache.h"
-
+ 
 #include <ydb/core/blobstorage/crypto/default.h>
 #include <ydb/library/pdisk_io/aio.h>
 
@@ -20,203 +20,203 @@
 #include <util/stream/null.h>
 #include <util/system/tempfile.h>
 #include <cstring>
-
-namespace NKikimr { namespace NPDisk {
-
+ 
+namespace NKikimr { namespace NPDisk { 
+ 
 Y_UNIT_TEST_SUITE(TPDiskUtil) {
-
+ 
     Y_UNIT_TEST(AtomicBlockCounterFunctional) {
-        TAtomicBlockCounter counter;
-        UNIT_ASSERT_EQUAL(counter.Get(), 0);
-        UNIT_ASSERT_EQUAL(counter.Increment(), 1);
-        UNIT_ASSERT_EQUAL(counter.Add(20), 21);
-        UNIT_ASSERT_EQUAL(counter.Decrement(), 20);
-        UNIT_ASSERT_EQUAL(counter.Sub(10), 10);
-        counter.BlockA();
-        UNIT_ASSERT_EQUAL(counter.IsBlocked(), true);
-        UNIT_ASSERT_EQUAL(counter.Sub(5), 5);
-        UNIT_ASSERT_EQUAL(counter.Increment(), 0);
-        UNIT_ASSERT_EQUAL(counter.Add(5), 0);
-        counter.UnblockB();
-        UNIT_ASSERT_EQUAL(counter.Add(5), 0);
-        counter.BlockB();
-        UNIT_ASSERT_EQUAL(counter.Add(5), 0);
-        counter.UnblockA();
-        UNIT_ASSERT_EQUAL(counter.Add(5), 0);
-        counter.UnblockB();
-        UNIT_ASSERT_EQUAL(counter.Add(5), 10);
-    }
-
+        TAtomicBlockCounter counter; 
+        UNIT_ASSERT_EQUAL(counter.Get(), 0); 
+        UNIT_ASSERT_EQUAL(counter.Increment(), 1); 
+        UNIT_ASSERT_EQUAL(counter.Add(20), 21); 
+        UNIT_ASSERT_EQUAL(counter.Decrement(), 20); 
+        UNIT_ASSERT_EQUAL(counter.Sub(10), 10); 
+        counter.BlockA(); 
+        UNIT_ASSERT_EQUAL(counter.IsBlocked(), true); 
+        UNIT_ASSERT_EQUAL(counter.Sub(5), 5); 
+        UNIT_ASSERT_EQUAL(counter.Increment(), 0); 
+        UNIT_ASSERT_EQUAL(counter.Add(5), 0); 
+        counter.UnblockB(); 
+        UNIT_ASSERT_EQUAL(counter.Add(5), 0); 
+        counter.BlockB(); 
+        UNIT_ASSERT_EQUAL(counter.Add(5), 0); 
+        counter.UnblockA(); 
+        UNIT_ASSERT_EQUAL(counter.Add(5), 0); 
+        counter.UnblockB(); 
+        UNIT_ASSERT_EQUAL(counter.Add(5), 10); 
+    } 
+ 
     Y_UNIT_TEST(AtomicBlockCounterSeqno) {
-        TAtomicBlockCounter counter;
-        TAtomicBlockCounter::TResult res;
-        counter.BlockA(res);
-        ui16 s = res.Seqno;
-
-        // Block functional
-        counter.BlockA(res);
-        UNIT_ASSERT_EQUAL(res.Seqno, s);
-        counter.UnblockA(res);
-        UNIT_ASSERT_EQUAL(res.Seqno, ++s);
-        counter.UnblockA(res);
-        UNIT_ASSERT_EQUAL(res.Seqno, s);
-        counter.UnblockB(res);
-        UNIT_ASSERT_EQUAL(res.Seqno, s);
-        counter.BlockB(res);
-        UNIT_ASSERT_EQUAL(res.Seqno, ++s);
-        counter.BlockB(res);
-        UNIT_ASSERT_EQUAL(res.Seqno, s);
-        counter.UnblockB(res);
-        UNIT_ASSERT_EQUAL(res.Seqno, ++s);
-
-        // Threshold Ops functional
-        counter.ThresholdAdd(10, 100, res);
-        UNIT_ASSERT_EQUAL(res.Seqno, ++s);
-        counter.ThresholdSub(2, 100, res);
-        UNIT_ASSERT_EQUAL(res.Seqno, ++s);
-
-        // Seqno overflow
-        ui16 se = s - 2;
-        int i = 0;
-        while (s != se) {
-            if (i % 2 == 0) {
-                counter.BlockB(res);
-            } else {
-                counter.UnblockB(res);
-            }
-            UNIT_ASSERT_EQUAL(res.Seqno, ++s);
-            i++;
-        }
-    }
-
+        TAtomicBlockCounter counter; 
+        TAtomicBlockCounter::TResult res; 
+        counter.BlockA(res); 
+        ui16 s = res.Seqno; 
+ 
+        // Block functional 
+        counter.BlockA(res); 
+        UNIT_ASSERT_EQUAL(res.Seqno, s); 
+        counter.UnblockA(res); 
+        UNIT_ASSERT_EQUAL(res.Seqno, ++s); 
+        counter.UnblockA(res); 
+        UNIT_ASSERT_EQUAL(res.Seqno, s); 
+        counter.UnblockB(res); 
+        UNIT_ASSERT_EQUAL(res.Seqno, s); 
+        counter.BlockB(res); 
+        UNIT_ASSERT_EQUAL(res.Seqno, ++s); 
+        counter.BlockB(res); 
+        UNIT_ASSERT_EQUAL(res.Seqno, s); 
+        counter.UnblockB(res); 
+        UNIT_ASSERT_EQUAL(res.Seqno, ++s); 
+ 
+        // Threshold Ops functional 
+        counter.ThresholdAdd(10, 100, res); 
+        UNIT_ASSERT_EQUAL(res.Seqno, ++s); 
+        counter.ThresholdSub(2, 100, res); 
+        UNIT_ASSERT_EQUAL(res.Seqno, ++s); 
+ 
+        // Seqno overflow 
+        ui16 se = s - 2; 
+        int i = 0; 
+        while (s != se) { 
+            if (i % 2 == 0) { 
+                counter.BlockB(res); 
+            } else { 
+                counter.UnblockB(res); 
+            } 
+            UNIT_ASSERT_EQUAL(res.Seqno, ++s); 
+            i++; 
+        } 
+    } 
+ 
     Y_UNIT_TEST(Light) {
-        TLight l;
-        TIntrusivePtr<NMonitoring::TDynamicCounters> c(new NMonitoring::TDynamicCounters());
-        l.Initialize(c, "l");
-        auto state = c->GetCounter("l_state");
-        auto count = c->GetCounter("l_count");
-
-        // functional
-        l.Set(true, 1);
-        UNIT_ASSERT_EQUAL(state->Val(), 1);
-        UNIT_ASSERT_EQUAL(count->Val(), 1);
-        l.Set(false, 2);
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 1);
-        l.Set(false, 3);
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 1);
-        l.Set(true, 4);
-        UNIT_ASSERT_EQUAL(state->Val(), 1);
-        UNIT_ASSERT_EQUAL(count->Val(), 2);
-        l.Set(true, 5);
-        UNIT_ASSERT_EQUAL(state->Val(), 1);
-        UNIT_ASSERT_EQUAL(count->Val(), 2);
-
-        // Single reordering
-        l.Set(true, 7);
-        UNIT_ASSERT_EQUAL(state->Val(), 1);
-        UNIT_ASSERT_EQUAL(count->Val(), 2);
-        l.Set(false, 6);
-        UNIT_ASSERT_EQUAL(state->Val(), 1);
-        UNIT_ASSERT_EQUAL(count->Val(), 3);
-
-        // Multiple reorderings
-        l.Set(false, 8);
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 3);
-        l.Set(true, 12);
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 3);
-        l.Set(false, 13);
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 3);
-        l.Set(true, 14);
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 3);
-        l.Set(false, 11);
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 3);
-        l.Set(true, 10);
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 3);
-        l.Set(true, 9);
-        UNIT_ASSERT_EQUAL(state->Val(), 1);
-        UNIT_ASSERT_EQUAL(count->Val(), 6);
-
-        // Multiple reorderings with pause
-        l.Set(false, 15);
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 6);
-        l.Set(false, 17);
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 6);
-        l.Set(true, 18);
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 6);
-        l.Set(true, 20);
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 6);
-        l.Set(true, 22);
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 6);
-        l.Set(false, 21);
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 6);
-        l.Set(true, 16);
-        UNIT_ASSERT_EQUAL(state->Val(), 1);
-        UNIT_ASSERT_EQUAL(count->Val(), 8);
-        l.Set(false, 19);
-        UNIT_ASSERT_EQUAL(state->Val(), 1);
-        UNIT_ASSERT_EQUAL(count->Val(), 10);
-
-        // Resizing
-        l.Set(false, 23);
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 10);
-        ui16 seqno = 24; // skip one
-        for (int i = 0; i < 199; i++) {
-            l.Set(i % 2 == 1 , ++seqno);
-            UNIT_ASSERT_EQUAL(count->Val(), 10);
-        }
-        l.Set(true, 24); // place missed one
-        UNIT_ASSERT_EQUAL(state->Val(), 0);
-        UNIT_ASSERT_EQUAL(count->Val(), 110);
-
-        { // Seqno overflow
-            ui64 N = 3ull << 16ull;
-            i64 cnt = count->Val();
-            for (ui64 i = 0; i < N; i++) {
-                bool st = (i % 3 == 0);
-                l.Set(st, ++seqno);
-                if (st) {
-                    cnt++;
-                }
-                UNIT_ASSERT_EQUAL(count->Val(), cnt);
-            }
-            UNIT_ASSERT_EQUAL(state->Val(), 0);
-        }
-
-        { // Seqno overflow and reorderings with max possible size
-            i64 cnt = count->Val();
-            i64 cntStart = cnt;
-            ui16 missedSeqno = ++seqno;
-            bool st = false;
-            UNIT_ASSERT(missedSeqno > 10);
-            while (seqno != missedSeqno - 2) { // one for missed and one for initial
-                bool stPrev = st;
-                st = (seqno % 5 == 0);
-                l.Set(st, ++seqno);
-                if (st && !stPrev) {
-                    cnt++;
-                }
-                UNIT_ASSERT_EQUAL(count->Val(), cntStart);
-            }
-            l.Set(false, missedSeqno); // place missed one
+        TLight l; 
+        TIntrusivePtr<NMonitoring::TDynamicCounters> c(new NMonitoring::TDynamicCounters()); 
+        l.Initialize(c, "l"); 
+        auto state = c->GetCounter("l_state"); 
+        auto count = c->GetCounter("l_count"); 
+ 
+        // functional 
+        l.Set(true, 1); 
+        UNIT_ASSERT_EQUAL(state->Val(), 1); 
+        UNIT_ASSERT_EQUAL(count->Val(), 1); 
+        l.Set(false, 2); 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 1); 
+        l.Set(false, 3); 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 1); 
+        l.Set(true, 4); 
+        UNIT_ASSERT_EQUAL(state->Val(), 1); 
+        UNIT_ASSERT_EQUAL(count->Val(), 2); 
+        l.Set(true, 5); 
+        UNIT_ASSERT_EQUAL(state->Val(), 1); 
+        UNIT_ASSERT_EQUAL(count->Val(), 2); 
+ 
+        // Single reordering 
+        l.Set(true, 7); 
+        UNIT_ASSERT_EQUAL(state->Val(), 1); 
+        UNIT_ASSERT_EQUAL(count->Val(), 2); 
+        l.Set(false, 6); 
+        UNIT_ASSERT_EQUAL(state->Val(), 1); 
+        UNIT_ASSERT_EQUAL(count->Val(), 3); 
+ 
+        // Multiple reorderings 
+        l.Set(false, 8); 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 3); 
+        l.Set(true, 12); 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 3); 
+        l.Set(false, 13); 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 3); 
+        l.Set(true, 14); 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 3); 
+        l.Set(false, 11); 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 3); 
+        l.Set(true, 10); 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 3); 
+        l.Set(true, 9); 
+        UNIT_ASSERT_EQUAL(state->Val(), 1); 
+        UNIT_ASSERT_EQUAL(count->Val(), 6); 
+ 
+        // Multiple reorderings with pause 
+        l.Set(false, 15); 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 6); 
+        l.Set(false, 17); 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 6); 
+        l.Set(true, 18); 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 6); 
+        l.Set(true, 20); 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 6); 
+        l.Set(true, 22); 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 6); 
+        l.Set(false, 21); 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 6); 
+        l.Set(true, 16); 
+        UNIT_ASSERT_EQUAL(state->Val(), 1); 
+        UNIT_ASSERT_EQUAL(count->Val(), 8); 
+        l.Set(false, 19); 
+        UNIT_ASSERT_EQUAL(state->Val(), 1); 
+        UNIT_ASSERT_EQUAL(count->Val(), 10); 
+ 
+        // Resizing 
+        l.Set(false, 23); 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 10); 
+        ui16 seqno = 24; // skip one 
+        for (int i = 0; i < 199; i++) { 
+            l.Set(i % 2 == 1 , ++seqno); 
+            UNIT_ASSERT_EQUAL(count->Val(), 10); 
+        } 
+        l.Set(true, 24); // place missed one 
+        UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        UNIT_ASSERT_EQUAL(count->Val(), 110); 
+ 
+        { // Seqno overflow 
+            ui64 N = 3ull << 16ull; 
+            i64 cnt = count->Val(); 
+            for (ui64 i = 0; i < N; i++) { 
+                bool st = (i % 3 == 0); 
+                l.Set(st, ++seqno); 
+                if (st) { 
+                    cnt++; 
+                } 
+                UNIT_ASSERT_EQUAL(count->Val(), cnt); 
+            } 
+            UNIT_ASSERT_EQUAL(state->Val(), 0); 
+        } 
+ 
+        { // Seqno overflow and reorderings with max possible size 
+            i64 cnt = count->Val(); 
+            i64 cntStart = cnt; 
+            ui16 missedSeqno = ++seqno; 
+            bool st = false; 
+            UNIT_ASSERT(missedSeqno > 10); 
+            while (seqno != missedSeqno - 2) { // one for missed and one for initial 
+                bool stPrev = st; 
+                st = (seqno % 5 == 0); 
+                l.Set(st, ++seqno); 
+                if (st && !stPrev) { 
+                    cnt++; 
+                } 
+                UNIT_ASSERT_EQUAL(count->Val(), cntStart); 
+            } 
+            l.Set(false, missedSeqno); // place missed one 
             UNIT_ASSERT_EQUAL((bool)state->Val(), st);
-            UNIT_ASSERT_EQUAL(count->Val(), cnt);
-        }
-    }
+            UNIT_ASSERT_EQUAL(count->Val(), cnt); 
+        } 
+    } 
 
     Y_UNIT_TEST(LightOverflow) {
         TLight l;
@@ -264,8 +264,8 @@ void TestOffset(ui64 offset, ui64 size, ui64 expectedFirstSector, ui64 expectedL
             "lastSector# " << lastSector << " expectedLastSector# " << expectedLastSector << "\n"
             "sectorOffset# " << sectorOffset << " expectedSectorOffset# " << expectedSectorOffset << "\n"
             );
-}
-
+} 
+ 
     Y_UNIT_TEST(OffsetParsingCorrectness) {
         TDiskFormat format;
         format.Clear();
@@ -521,4 +521,4 @@ void TestPayloadOffset(ui64 firstSector, ui64 lastSector, ui64 currentSector, ui
     }
 }
 
-}} // namespace NKikimr // namespace NPDisk
+}} // namespace NKikimr // namespace NPDisk 
diff --git a/ydb/core/blobstorage/pdisk/mock/pdisk_mock.cpp b/ydb/core/blobstorage/pdisk/mock/pdisk_mock.cpp
index 1e84f5d8f6..b6f603e3cf 100644
--- a/ydb/core/blobstorage/pdisk/mock/pdisk_mock.cpp
+++ b/ydb/core/blobstorage/pdisk/mock/pdisk_mock.cpp
@@ -177,8 +177,8 @@ struct TPDiskMockState::TImpl {
         return ChunkSize;
     }
 
-    TIntervalSet<i64> GetWrittenAreas(ui32 chunkIdx) const {
-        TIntervalSet<i64> res;
+    TIntervalSet<i64> GetWrittenAreas(ui32 chunkIdx) const { 
+        TIntervalSet<i64> res; 
         for (auto& [ownerId, owner] : Owners) {
             if (const auto it = owner.ChunkData.find(chunkIdx); it != owner.ChunkData.end()) {
                 for (const auto& [idx, data] : it->second.Blocks) {
@@ -224,7 +224,7 @@ ui32 TPDiskMockState::GetChunkSize() const {
     return Impl->GetChunkSize();
 }
 
-TIntervalSet<i64> TPDiskMockState::GetWrittenAreas(ui32 chunkIdx) const {
+TIntervalSet<i64> TPDiskMockState::GetWrittenAreas(ui32 chunkIdx) const { 
     return Impl->GetWrittenAreas(chunkIdx);
 }
 
diff --git a/ydb/core/blobstorage/pdisk/mock/pdisk_mock.h b/ydb/core/blobstorage/pdisk/mock/pdisk_mock.h
index a09441f4ab..80b7293b45 100644
--- a/ydb/core/blobstorage/pdisk/mock/pdisk_mock.h
+++ b/ydb/core/blobstorage/pdisk/mock/pdisk_mock.h
@@ -23,7 +23,7 @@ namespace NKikimr {
         void SetCorruptedArea(ui32 chunkIdx, ui32 begin, ui32 end, bool enabled);
         std::set<ui32> GetChunks();
         ui32 GetChunkSize() const;
-        TIntervalSet<i64> GetWrittenAreas(ui32 chunkIdx) const;
+        TIntervalSet<i64> GetWrittenAreas(ui32 chunkIdx) const; 
         void TrimQuery();
 
         TPtr Snapshot(); // create a copy of PDisk whole state
diff --git a/ydb/core/blobstorage/testload/test_load_actor.cpp b/ydb/core/blobstorage/testload/test_load_actor.cpp
index c8788b1310..6088abc3d7 100644
--- a/ydb/core/blobstorage/testload/test_load_actor.cpp
+++ b/ydb/core/blobstorage/testload/test_load_actor.cpp
@@ -337,11 +337,11 @@ public:
                         str << "<option value=\"" << ui32(NKikimrBlobStorage::NAME) << "\">" << #NAME << "</option>";
 
         TStringStream str;
-        HTML(str) {
+        HTML(str) { 
             if (info.ErrorMessage) {
-                DIV() {
+                DIV() { 
                     str << "<h1>" << info.ErrorMessage << "</h1>";
-                }
+                } 
             }
 
             if (!nodata) {
@@ -350,12 +350,12 @@ public:
                     DIV_CLASS("panel panel-info") {
                         DIV_CLASS("panel-heading") {
                             str << "Tag# " << perActorInfo.Tag;
-                        }
+                        } 
                         DIV_CLASS("panel-body") {
                             str << perActorInfo.Data;
-                        }
-                    }
-                }
+                        } 
+                    } 
+                } 
 
                 COLLAPSED_BUTTON_CONTENT("finished_tests_info", "Finished tests") {
                     for (const auto& req : FinishedTests) {
@@ -373,8 +373,8 @@ public:
                     }
                 }
             }
-        }
-
+        } 
+ 
         ctx.Send(info.Origin, new NMon::TEvHttpInfoRes(str.Str(), info.SubRequestId));
 
         InfoRequests.erase(it);
diff --git a/ydb/core/blobstorage/testload/test_load_actor.h b/ydb/core/blobstorage/testload/test_load_actor.h
index 38b7fb3d30..c90e2141fd 100644
--- a/ydb/core/blobstorage/testload/test_load_actor.h
+++ b/ydb/core/blobstorage/testload/test_load_actor.h
@@ -72,7 +72,7 @@ namespace NKikimr {
         ui32 InFlight;
         TVector<ui64> RwSpeedBps;
         ELoadType LoadType;
-        NMonitoring::TPercentileTrackerLg<10, 4, 1> LatencyUs; // Upper threshold of this tracker is ~134 seconds, size is 256kB
+        NMonitoring::TPercentileTrackerLg<10, 4, 1> LatencyUs; // Upper threshold of this tracker is ~134 seconds, size is 256kB 
         TMap<double, ui64> DeviceLatency;
 
         double GetAverageSpeed() const {
diff --git a/ydb/core/blobstorage/testload/test_load_pdisk_read.cpp b/ydb/core/blobstorage/testload/test_load_pdisk_read.cpp
index 3b446a74c2..9a63ad1364 100644
--- a/ydb/core/blobstorage/testload/test_load_pdisk_read.cpp
+++ b/ydb/core/blobstorage/testload/test_load_pdisk_read.cpp
@@ -463,7 +463,7 @@ public:
         TRequestInfo *request = &RequestInfo[requestIdx];
 
         if (now > MeasurementStartTime) {
-            Report->LatencyUs.Increment((now - request->StartTime).MicroSeconds());
+            Report->LatencyUs.Increment((now - request->StartTime).MicroSeconds()); 
             for(const auto& perc : DevicePercentiles) {
                 Report->DeviceLatency[perc.first] = Max(Report->DeviceLatency[perc.first], (ui64)*perc.second);
             }
@@ -554,7 +554,7 @@ public:
                     PARAM("Average speed since start, MB/s", Report->GetAverageSpeed() / 1e6);
                     PARAM("Speed standard deviation since start, MB/s", Report->GetSpeedDeviation() / 1e6);
                     for (double percentile : {0.5, 0.9, 0.95, 0.99, 0.999, 1.0}) {
-                        size_t value = Report->LatencyUs.GetPercentile(percentile);
+                        size_t value = Report->LatencyUs.GetPercentile(percentile); 
                         PARAM(Sprintf("percentile# %.3f since start, ms", percentile), value / 1000.0);
                     }
                     for(const auto& perc : DevicePercentiles) {
diff --git a/ydb/core/blobstorage/testload/test_load_pdisk_write.cpp b/ydb/core/blobstorage/testload/test_load_pdisk_write.cpp
index 8ea16e014c..5e4c145e2e 100644
--- a/ydb/core/blobstorage/testload/test_load_pdisk_write.cpp
+++ b/ydb/core/blobstorage/testload/test_load_pdisk_write.cpp
@@ -78,13 +78,13 @@ class TPDiskWriterTestLoadActor : public TActorBootstrapped<TPDiskWriterTestLoad
     const TActorId Parent;
     ui64 Tag;
     ui32 DurationSeconds;
-    ui32 IntervalMsMin = 0;
-    ui32 IntervalMsMax = 0;
+    ui32 IntervalMsMin = 0; 
+    ui32 IntervalMsMax = 0; 
     TControlWrapper MaxInFlight;
     ui32 InFlight = 0;
     ui32 LogInFlight = 0;
-    TInstant LastRequest;
-    ui32 IntervalMs = 0;
+    TInstant LastRequest; 
+    ui32 IntervalMs = 0; 
     ui32 PDiskId;
     TVDiskID VDiskId;
     NPDisk::TOwnerRound OwnerRound;
@@ -146,9 +146,9 @@ public:
         Y_ASSERT(DurationSeconds > DelayBeforeMeasurements.Seconds());
         Report->Duration = TDuration::Seconds(DurationSeconds);
 
-        IntervalMsMin = cmd.GetIntervalMsMin();
-        IntervalMsMax = cmd.GetIntervalMsMax();
-
+        IntervalMsMin = cmd.GetIntervalMsMin(); 
+        IntervalMsMax = cmd.GetIntervalMsMax(); 
+ 
         VERIFY_PARAM(InFlightWrites);
         MaxInFlight = cmd.GetInFlightWrites();
         Report->InFlight = MaxInFlight;
@@ -213,7 +213,7 @@ public:
 
     void Bootstrap(const TActorContext& ctx) {
         Become(&TPDiskWriterTestLoadActor::StateFunc);
-        ctx.Schedule(TDuration::Seconds(DurationSeconds), new TEvents::TEvPoisonPill);
+        ctx.Schedule(TDuration::Seconds(DurationSeconds), new TEvents::TEvPoisonPill); 
         ctx.Schedule(TDuration::MilliSeconds(MonitoringUpdateCycleMs), new TEvUpdateMonitoring);
         AppData(ctx)->Icb->RegisterLocalControl(MaxInFlight, Sprintf("PDiskWriteLoadActor_MaxInFlight_%4" PRIu64, Tag).c_str());
         if (IsWardenlessTest) {
@@ -311,18 +311,18 @@ public:
     }
 
     ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-    // Rate management
-    ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-
-    void HandleWakeup(const TActorContext& ctx) {
-        SendWriteRequests(ctx);
-    }
-
-    ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+    // Rate management 
+    //////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 
+ 
+    void HandleWakeup(const TActorContext& ctx) { 
+        SendWriteRequests(ctx); 
+    } 
+ 
+    //////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 
     // Death management
     ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
-    void HandlePoisonPill(const TActorContext& ctx) {
+    void HandlePoisonPill(const TActorContext& ctx) { 
         Report->LoadType = TLoadReport::LOAD_WRITE;
         MaxInFlight = 0;
         CheckDie(ctx);
@@ -377,28 +377,28 @@ public:
 
     void SendWriteRequests(const TActorContext& ctx) {
         while (InFlight < MaxInFlight) {
-            // Randomize interval (if required)
-            if (!IntervalMs && IntervalMsMax && IntervalMsMin) {
-                IntervalMs = IntervalMsMin;
-                if (ui32 delta = (IntervalMsMax > IntervalMsMin? IntervalMsMax - IntervalMsMin: 0)) {
-                    IntervalMs += Rng() % delta;
-                }
-            }
-
-            if (IntervalMs) {
-                // Enforce intervals between requests
+            // Randomize interval (if required) 
+            if (!IntervalMs && IntervalMsMax && IntervalMsMin) { 
+                IntervalMs = IntervalMsMin; 
+                if (ui32 delta = (IntervalMsMax > IntervalMsMin? IntervalMsMax - IntervalMsMin: 0)) { 
+                    IntervalMs += Rng() % delta; 
+                } 
+            } 
+ 
+            if (IntervalMs) { 
+                // Enforce intervals between requests 
                 TInstant now = TAppData::TimeProvider->Now();
-                TInstant nextRequest = LastRequest + TDuration::MilliSeconds(IntervalMs);
-                if (now < nextRequest) {
-                    // Suspend sending until interval will elapse
-                    ctx.Schedule(nextRequest - now, new TEvents::TEvWakeup);
-                    break;
-                }
-                LastRequest = now;
-                IntervalMs = 0; // To enforce regeneration of new random interval
-            }
-
-            // Prepare to send request
+                TInstant nextRequest = LastRequest + TDuration::MilliSeconds(IntervalMs); 
+                if (now < nextRequest) { 
+                    // Suspend sending until interval will elapse 
+                    ctx.Schedule(nextRequest - now, new TEvents::TEvWakeup); 
+                    break; 
+                } 
+                LastRequest = now; 
+                IntervalMs = 0; // To enforce regeneration of new random interval 
+            } 
+ 
+            // Prepare to send request 
             ui64 accumWeight = 0;
             for (TChunkInfo& chunkInfo : Chunks) {
                 chunkInfo.AccumWeight = accumWeight;
@@ -513,7 +513,7 @@ public:
         TRequestInfo *request = &RequestInfo[requestIdx];
 
         if (now > MeasurementStartTime) {
-            Report->LatencyUs.Increment((now - request->StartTime).MicroSeconds());
+            Report->LatencyUs.Increment((now - request->StartTime).MicroSeconds()); 
             for(const auto& perc : DevicePercentiles) {
                 Report->DeviceLatency[perc.first] = Max(Report->DeviceLatency[perc.first], (ui64)*perc.second);
             }
@@ -552,24 +552,24 @@ public:
     void Handle(NMon::TEvHttpInfo::TPtr& ev, const TActorContext& ctx) {
         TStringStream str;
 #define PARAM(NAME, VALUE) \
-    TABLER() { \
-        TABLED() { str << NAME; } \
-        TABLED() { str << VALUE; } \
-    }
+    TABLER() { \ 
+        TABLED() { str << NAME; } \ 
+        TABLED() { str << VALUE; } \ 
+    } 
         TMap<ui32, TVector<TDuration>> latmap;
         for (const auto& pair : TimeSeries) {
             const TRequestStat& stat = pair.second;
             latmap[stat.Size].push_back(stat.Latency);
         }
-        HTML(str) {
-            TABLE() {
-                TABLEHEAD() {
-                    TABLER() {
-                        TABLEH() { str << "Parameter"; }
-                        TABLEH() { str << "Value"; }
-                    }
-                }
-                TABLEBODY() {
+        HTML(str) { 
+            TABLE() { 
+                TABLEHEAD() { 
+                    TABLER() { 
+                        TABLEH() { str << "Parameter"; } 
+                        TABLEH() { str << "Value"; } 
+                    } 
+                } 
+                TABLEBODY() { 
 
                     PARAM("Elapsed time / Duration", (TAppData::TimeProvider->Now() - TestStartTime).Seconds() << "s / "
                             << DurationSeconds << "s");
@@ -614,13 +614,13 @@ public:
                     PARAM("Average speed since start, MB/s", Report->GetAverageSpeed() / 1e6);
                     PARAM("Speed standard deviation since start, MB/s", Report->GetSpeedDeviation() / 1e6);
                     for (double percentile : {0.5, 0.9, 0.95, 0.99, 0.999, 1.0}) {
-                        size_t value = Report->LatencyUs.GetPercentile(percentile);
+                        size_t value = Report->LatencyUs.GetPercentile(percentile); 
                         PARAM(Sprintf("percentile# %.3f since start, ms", percentile), value / 1000.0);
                     }
-                }
-            }
-        }
-
+                } 
+            } 
+        } 
+ 
         ctx.Send(ev->Sender, new NMon::TEvHttpInfoRes(str.Str(), ev->Get()->SubRequestId));
     }
 
diff --git a/ydb/core/blobstorage/testload/test_load_vdisk_write.cpp b/ydb/core/blobstorage/testload/test_load_vdisk_write.cpp
index 39ecca9dbd..0eca8811b5 100644
--- a/ydb/core/blobstorage/testload/test_load_vdisk_write.cpp
+++ b/ydb/core/blobstorage/testload/test_load_vdisk_write.cpp
@@ -276,29 +276,29 @@ namespace NKikimr {
                     }                       \
                 }
 
-#define PARAM(NAME)                    \
-                TABLER() {               \
-                    TABLED() {           \
-                        str << #NAME;  \
-                    }                  \
-                    TABLED() {           \
-                        str << NAME;   \
-                    }                  \
-                }
-
-                HTML(str) {
-                    TABLE() {
-                        TABLEHEAD() {
-                            TABLER() {
-                                TABLEH() {
+#define PARAM(NAME)                    \ 
+                TABLER() {               \ 
+                    TABLED() {           \ 
+                        str << #NAME;  \ 
+                    }                  \ 
+                    TABLED() {           \ 
+                        str << NAME;   \ 
+                    }                  \ 
+                } 
+
+                HTML(str) { 
+                    TABLE() { 
+                        TABLEHEAD() { 
+                            TABLER() { 
+                                TABLEH() { 
                                     str << "Parameter";
-                                }
-                                TABLEH() {
+                                } 
+                                TABLEH() { 
                                     str << "Value";
-                                }
-                            }
-                        }
-                        TABLEBODY() {
+                                } 
+                            } 
+                        } 
+                        TABLEBODY() { 
                             NAMED_PARAM("Elapsed time / Duration", (TAppData::TimeProvider->Now() - StartTime).Seconds()
                                     << "s / " << DurationSeconds << "s");
                             PARAM(TabletId)
@@ -320,9 +320,9 @@ namespace NKikimr {
                             TString avgSpeed = Sprintf("%.3lf %s", (double) BytesWritten / (1 << 20) /
                                     (TAppData::TimeProvider->Now() - StartTime).Seconds(), "MB/s");
                             NAMED_PARAM("Average speed", avgSpeed);
-                        }
-                    }
-                }
+                        } 
+                    } 
+                } 
                 ctx.Send(ev->Sender, new NMon::TEvHttpInfoRes(str.Str(), ev->Get()->SubRequestId));
             }
 
diff --git a/ydb/core/blobstorage/testload/test_load_write.cpp b/ydb/core/blobstorage/testload/test_load_write.cpp
index 3169c1609e..1bf2bbe67d 100644
--- a/ydb/core/blobstorage/testload/test_load_write.cpp
+++ b/ydb/core/blobstorage/testload/test_load_write.cpp
@@ -387,7 +387,7 @@ class TLogWriterTestLoadActor : public TActorBootstrapped<TLogWriterTestLoadActo
                 ResponseQT.Update();
                 ReadResponseQT.Update();
                 if (WritesInFlightTimestamps) {
-                    const auto& maxLatency = CyclesToDuration(GetCycleCountFast() - WritesInFlightTimestamps.front().second);
+                    const auto& maxLatency = CyclesToDuration(GetCycleCountFast() - WritesInFlightTimestamps.front().second); 
                     *MaxInFlightLatency = maxLatency.MicroSeconds();
                 }
             }
@@ -419,7 +419,7 @@ class TLogWriterTestLoadActor : public TActorBootstrapped<TLogWriterTestLoadActo
             }
             HTML(str) {
                 TDuration EarliestTimestamp = TDuration::Zero();
-                const ui64 nowCycles = GetCycleCountFast();
+                const ui64 nowCycles = GetCycleCountFast(); 
                 for (const auto& [writeId, issued] : WritesInFlightTimestamps) {
                     EarliestTimestamp = Max(EarliestTimestamp, CyclesToDuration(nowCycles - issued));
                 }
@@ -562,7 +562,7 @@ class TLogWriterTestLoadActor : public TActorBootstrapped<TLogWriterTestLoadActo
                 auto it = SentTimestamp.find(writeQueryId);
                 const auto sendCycles = it->second;
                 Y_VERIFY(it != SentTimestamp.end());
-                const TDuration response = CyclesToDuration(GetCycleCountFast() - sendCycles);
+                const TDuration response = CyclesToDuration(GetCycleCountFast() - sendCycles); 
                 SentTimestamp.erase(it);
 
                 // It's very likely that "writeQueryId" will be found at the start
@@ -581,7 +581,7 @@ class TLogWriterTestLoadActor : public TActorBootstrapped<TLogWriterTestLoadActo
                 }
             };
             SendToBSProxy(ctx, GroupId, ev.release(), QueryDispatcher.ObtainCookie(std::move(writeCallback)));
-            const auto nowCycles = GetCycleCountFast();
+            const auto nowCycles = GetCycleCountFast(); 
             WritesInFlightTimestamps.emplace_back(writeQueryId, nowCycles);
             SentTimestamp.emplace(writeQueryId, nowCycles);
             IssuedWriteTimestamp.push_back(TAppData::TimeProvider->Now());
@@ -714,7 +714,7 @@ class TLogWriterTestLoadActor : public TActorBootstrapped<TLogWriterTestLoadActo
 
                 auto it = ReadSentTimestamp.find(readQueryId);
                 Y_VERIFY(it != ReadSentTimestamp.end());
-                const TDuration response = CyclesToDuration(GetCycleCountFast() - it->second);
+                const TDuration response = CyclesToDuration(GetCycleCountFast() - it->second); 
                 ReadSentTimestamp.erase(it);
 
                 ReadResponseQT.Increment(response.MicroSeconds());
@@ -722,7 +722,7 @@ class TLogWriterTestLoadActor : public TActorBootstrapped<TLogWriterTestLoadActo
             };
 
             SendToBSProxy(ctx, GroupId, ev.release(), QueryDispatcher.ObtainCookie(std::move(readCallback)));
-            ReadSentTimestamp.emplace(readQueryId, GetCycleCountFast());
+            ReadSentTimestamp.emplace(readQueryId, GetCycleCountFast()); 
 
             ++ReadsInFlight;
             ReadBytesInFlight += size;
@@ -925,29 +925,29 @@ public:
 
     void Handle(NMon::TEvHttpInfo::TPtr& ev, const TActorContext& ctx) {
         TStringStream str;
-        HTML(str) {
+        HTML(str) { 
             TABLE_CLASS("table table-condensed") {
-                TABLEHEAD() {
-                    TABLER() {
+                TABLEHEAD() { 
+                    TABLER() { 
                         TABLEH() {
                             str << "Parameter";
                         }
                         TABLEH() {
                             str << "Value";
                         }
-                    }
-                }
-                TABLEBODY() {
+                    } 
+                } 
+                TABLEBODY() { 
                     for (auto& writer : TabletWriters) {
                         str << "<tr><td colspan=\"2\">" << "<b>Tablet</b>" << "</td></tr>";
                         writer.DumpState(str);
                     }
-                }
-            }
+                } 
+            } 
             COLLAPSED_BUTTON_CONTENT(Sprintf("configProtobuf%" PRIu64, Tag), "Config") {
                 str << "<pre>" << ConfingString << "</pre>";
             }
-        }
+        } 
         ctx.Send(ev->Sender, new NMon::TEvHttpInfoRes(str.Str(), ev->Get()->SubRequestId));
     }
 
diff --git a/ydb/core/blobstorage/ut_pdiskfit/lib/fail_injection_test.h b/ydb/core/blobstorage/ut_pdiskfit/lib/fail_injection_test.h
index 7e0bfa05e0..067c014083 100644
--- a/ydb/core/blobstorage/ut_pdiskfit/lib/fail_injection_test.h
+++ b/ydb/core/blobstorage/ut_pdiskfit/lib/fail_injection_test.h
@@ -71,7 +71,7 @@ public:
     {}
 
 private:
-    bool DoExecute(NLWTrace::TOrbit&, const NLWTrace::TParams& params) override {
+    bool DoExecute(NLWTrace::TOrbit&, const NLWTrace::TParams& params) override { 
         Injector->Inject(params.Param[0].Get<ui64>());
         return true;
     }
@@ -118,7 +118,7 @@ struct TPDiskFailureInjectionTest {
 
     TAutoEvent StopEvent;
 
-    NLWTrace::TManager TraceManager;
+    NLWTrace::TManager TraceManager; 
 
     TMaybe<TDuration> TestDuration;
 
@@ -154,7 +154,7 @@ struct TPDiskFailureInjectionTest {
         auto& custom = *action.MutableCustomAction();
         custom.SetName(name);
 
-        auto factory = [=](NLWTrace::TProbe *probe, const NLWTrace::TCustomAction& /*action*/, NLWTrace::TSession* /*session*/) {
+        auto factory = [=](NLWTrace::TProbe *probe, const NLWTrace::TCustomAction& /*action*/, NLWTrace::TSession* /*session*/) { 
             return new TFailInjectionActionExecutor(probe, injector);
         };
 
diff --git a/ydb/core/blobstorage/ut_vdisk/mon_reregister_ut.cpp b/ydb/core/blobstorage/ut_vdisk/mon_reregister_ut.cpp
index 36a2eca81f..10c09b2d4d 100644
--- a/ydb/core/blobstorage/ut_vdisk/mon_reregister_ut.cpp
+++ b/ydb/core/blobstorage/ut_vdisk/mon_reregister_ut.cpp
@@ -59,9 +59,9 @@ Y_UNIT_TEST_SUITE(TMonitoring) {
 
         void Handle(NMon::TEvHttpInfo::TPtr &ev, const TActorContext &ctx) {
             TStringStream str;
-            HTML(str) {
-                DIV_CLASS("alert alert-error") {str << "Incarnation: " << Incarnation;}
-            }
+            HTML(str) { 
+                DIV_CLASS("alert alert-error") {str << "Incarnation: " << Incarnation;} 
+            } 
 
             ctx.Send(ev->Sender, new NMon::TEvHttpInfoRes(str.Str()));
 
diff --git a/ydb/core/blobstorage/vdisk/common/blobstorage_dblogcutter.cpp b/ydb/core/blobstorage/vdisk/common/blobstorage_dblogcutter.cpp
index 5f176b61b7..cdb29280b5 100644
--- a/ydb/core/blobstorage/vdisk/common/blobstorage_dblogcutter.cpp
+++ b/ydb/core/blobstorage/vdisk/common/blobstorage_dblogcutter.cpp
@@ -150,10 +150,10 @@ namespace NKikimr {
 
             TStringStream str;
             str << "\n";
-            HTML(str) {
-                DIV_CLASS("panel panel-default") {
-                    DIV_CLASS("panel-heading") {str << "LogCutter";}
-                    DIV_CLASS("panel-body") {
+            HTML(str) { 
+                DIV_CLASS("panel panel-default") { 
+                    DIV_CLASS("panel-heading") {str << "LogCutter";} 
+                    DIV_CLASS("panel-body") { 
                         str << "Hull: [LsnToKeep=" << HullLsnToKeep
                             << ", LastUpdate=" << ToStringLocalTimeUpToSeconds(HullLastTime) << "]<br>";
                         str << "SyncLog: [LsnToKeep=" << SyncLogLsnToKeep
@@ -172,9 +172,9 @@ namespace NKikimr {
 
                         str << "FirstDuration: " << FirstDuration << "<br>";
                         str << "RegularDuration: " << RegularDuration << "<br>";
-                    }
-                }
-            }
+                    } 
+                } 
+            } 
             str << "\n";
 
             ctx.Send(ev->Sender, new NMon::TEvHttpInfoRes(str.Str(), TDbMon::LogCutterId));
diff --git a/ydb/core/blobstorage/vdisk/common/vdisk_response.cpp b/ydb/core/blobstorage/vdisk/common/vdisk_response.cpp
index 384931d305..922a85e852 100644
--- a/ydb/core/blobstorage/vdisk/common/vdisk_response.cpp
+++ b/ydb/core/blobstorage/vdisk/common/vdisk_response.cpp
@@ -25,8 +25,8 @@ void SendVDiskResponse(const TActorContext &ctx, const TActorId &recipient, IEve
             TEvBlobStorage::T *event = static_cast<TEvBlobStorage::T *>(ev); \
             traceId = std::move(event->TraceId); \
             WILSON_TRACE_FROM_ACTOR(ctx, actor, &traceId, EV); \
-            const double usPerCycle = 1000000.0 / NHPTimer::GetCyclesPerSecond(); \
-            event->Record.MutableTimestamps()->SetSentByVDiskUs(GetCycleCountFast() * usPerCycle); \
+            const double usPerCycle = 1000000.0 / NHPTimer::GetCyclesPerSecond(); \ 
+            event->Record.MutableTimestamps()->SetSentByVDiskUs(GetCycleCountFast() * usPerCycle); \ 
             break; \
         }
 
diff --git a/ydb/core/blobstorage/vdisk/common/vdisk_syncneighbors.h b/ydb/core/blobstorage/vdisk/common/vdisk_syncneighbors.h
index b014da97b0..b2a5671caf 100644
--- a/ydb/core/blobstorage/vdisk/common/vdisk_syncneighbors.h
+++ b/ydb/core/blobstorage/vdisk/common/vdisk_syncneighbors.h
@@ -342,38 +342,38 @@ namespace NKikimr {
             template <class TPrinter>
             void OutputHtml(IOutputStream &str, TPrinter &printer, const TString &name, const TString &divClass) const {
                 str << "\n";
-                HTML(str) {
-                    DIV_CLASS (divClass) {
-                        DIV_CLASS("panel-heading") {str << name;}
-                        DIV_CLASS("panel-body") {
-                            DIV_CLASS("row") {
+                HTML(str) { 
+                    DIV_CLASS (divClass) { 
+                        DIV_CLASS("panel-heading") {str << name;} 
+                        DIV_CLASS("panel-body") { 
+                            DIV_CLASS("row") { 
                                 OutputHtmlTable<TPrinter>(str, printer);
-                            }
-                        }
-                    }
-                }
+                            } 
+                        } 
+                    } 
+                } 
                 str << "\n";
             }
 
             template <class TPrinter>
             void OutputHtmlTable(IOutputStream &str, TPrinter &printer) const {
                 TVector<TConstIterator> its;
-                HTML(str) {
-                    TABLE_CLASS ("table table-condensed") {
-                        TABLEHEAD() {
-                            TABLER() {
+                HTML(str) { 
+                    TABLE_CLASS ("table table-condensed") { 
+                        TABLEHEAD() { 
+                            TABLER() { 
                                 const auto& domains = GetFailDomains();
                                 for (auto it = domains.begin(); it != domains.end(); ++it) {
-                                    TABLEH() {str << "Domain";}
+                                    TABLEH() {str << "Domain";} 
 
                                     const auto& vdisks = *it;
                                     its.emplace_back(vdisks.begin());
                                 }
-                            }
-                        }
+                            } 
+                        } 
                         OutputHtmlTableBody<TPrinter>(str, printer, its);
-                    }
-                }
+                    } 
+                } 
             }
 
         public:
@@ -418,26 +418,26 @@ namespace NKikimr {
 
             template <class TPrinter>
             void OutputHtmlTableBody(IOutputStream &str, TPrinter &printer, TVector<TConstIterator> &its) const {
-                HTML(str) {
-                    TABLEBODY() {
+                HTML(str) { 
+                    TABLEBODY() { 
                         for (ui32 row = 0; row < DisksInDomain; ++row) {
-                            TABLER() {
+                            TABLER() { 
                                 // column iterator -- one entry for each domain in "its"
                                 typename TVector<TConstIterator>::iterator colIt = its.begin();
 
                                 for (const auto& vdisks : GetFailDomains()) {
-                                    TABLED() {
+                                    TABLED() { 
                                         TConstIterator& x = *colIt++;
                                         printer(str, x++);
                                         if (row + 1 == DisksInDomain) {
                                             Y_VERIFY(x == vdisks.end());
                                         }
-                                    }
+                                    } 
                                 }
-                            }
+                            } 
                         }
-                    }
-                }
+                    } 
+                } 
             }
         };
         ////////////////////////////////////////////////////////////////////////////
diff --git a/ydb/core/blobstorage/vdisk/handoff/handoff_basic.cpp b/ydb/core/blobstorage/vdisk/handoff/handoff_basic.cpp
index da29a8822b..563018f762 100644
--- a/ydb/core/blobstorage/vdisk/handoff/handoff_basic.cpp
+++ b/ydb/core/blobstorage/vdisk/handoff/handoff_basic.cpp
@@ -40,7 +40,7 @@ namespace NKikimr {
             HTML(str) {
                 DIV_CLASS(".narrow-line70") {
                     SMALL() {
-                        SMALL() {
+                        SMALL() { 
                             HTML_OUTPUT_PARAM(str, LocalHandoffSendRightAway);
                             HTML_OUTPUT_PARAM(str, LocalHandoffPostpone);
                             HTML_OUTPUT_PARAM(str, LocalHandoffDiscard);
@@ -54,9 +54,9 @@ namespace NKikimr {
                             HTML_OUTPUT_PARAM(str, WakeupsStillBad);
                             HTML_OUTPUT_PARAM(str, StateGoodToBadTransition);
                             HTML_OUTPUT_PARAM(str, StateBadToGoodTransition);
-                        }
-                    }
-                }
+                        } 
+                    } 
+                } 
             }
             str << "\n";
         }
@@ -147,7 +147,7 @@ namespace NKikimr {
             HTML(str) {
                 DIV_CLASS(".narrow-line70") {
                     SMALL() {
-                        SMALL() {
+                        SMALL() { 
                             HTML_OUTPUT_PARAM(str, WaitQueueSize);
                             HTML_OUTPUT_PARAM(str, WaitQueueByteSize);
                             HTML_OUTPUT_PARAM(str, InFlightQueueSize);
@@ -156,9 +156,9 @@ namespace NKikimr {
                             HTML_OUTPUT_TIME_PARAM(str, LastSendTime);
                             HTML_OUTPUT_PARAM(str, WaitQueueSize);
                             HTML_OUTPUT_PARAM(str, WakeupCounter);
-                        }
-                    }
-                }
+                        } 
+                    } 
+                } 
             }
             str << "\n";
         }
diff --git a/ydb/core/blobstorage/vdisk/handoff/handoff_mon.cpp b/ydb/core/blobstorage/vdisk/handoff/handoff_mon.cpp
index 5aa0e92348..1e7f119631 100644
--- a/ydb/core/blobstorage/vdisk/handoff/handoff_mon.cpp
+++ b/ydb/core/blobstorage/vdisk/handoff/handoff_mon.cpp
@@ -98,10 +98,10 @@ namespace NKikimr {
         struct TPrinter {
             void operator() (IOutputStream &str, TCells::TConstIterator it) {
                 if (it->Myself) {
-                    HTML(str) {
-                        PARA_CLASS("text-info") {str << "Self";}
-                        SMALL() {str << it->VDiskIdShort.ToString();}
-                    }
+                    HTML(str) { 
+                        PARA_CLASS("text-info") {str << "Self";} 
+                        SMALL() {str << it->VDiskIdShort.ToString();} 
+                    } 
                 } else {
                     it->Get().PrState->OutputHtml(str);
                     it->Get().Cntr->OutputHtml(str);
diff --git a/ydb/core/blobstorage/vdisk/huge/blobstorage_hullhuge.cpp b/ydb/core/blobstorage/vdisk/huge/blobstorage_hullhuge.cpp
index 30d2aeece4..1b07a17e7d 100644
--- a/ydb/core/blobstorage/vdisk/huge/blobstorage_hullhuge.cpp
+++ b/ydb/core/blobstorage/vdisk/huge/blobstorage_hullhuge.cpp
@@ -893,12 +893,12 @@ namespace NKikimr {
         void Handle(NMon::TEvHttpInfo::TPtr &ev, const TActorContext &ctx) {
             Y_VERIFY_DEBUG(ev->Get()->SubRequestId == TDbMon::HugeKeeperId);
             TStringStream str;
-            HTML(str) {
-                DIV_CLASS("panel panel-default") {
-                    DIV_CLASS("panel-heading") {str << "Huge Blob Keeper";}
-                    DIV_CLASS("panel-body") {State.RenderHtml(str);}
-                }
-            }
+            HTML(str) { 
+                DIV_CLASS("panel panel-default") { 
+                    DIV_CLASS("panel-heading") {str << "Huge Blob Keeper";} 
+                    DIV_CLASS("panel-body") {State.RenderHtml(str);} 
+                } 
+            } 
             ctx.Send(ev->Sender, new NMon::TEvHttpInfoRes(str.Str(), TDbMon::HugeKeeperId));
         }
 
diff --git a/ydb/core/blobstorage/vdisk/huge/blobstorage_hullhugeheap.cpp b/ydb/core/blobstorage/vdisk/huge/blobstorage_hullhugeheap.cpp
index e60200de98..c94054ad0b 100644
--- a/ydb/core/blobstorage/vdisk/huge/blobstorage_hullhugeheap.cpp
+++ b/ydb/core/blobstorage/vdisk/huge/blobstorage_hullhugeheap.cpp
@@ -376,22 +376,22 @@ namespace NKikimr {
         }
 
         void TChainDelegator::RenderHtml(IOutputStream &str) const {
-            HTML(str) {
-                TABLER() {
-                    TABLED() {str << SlotSize << " / " << SlotsInChunk;}
-                    TABLED() {ChainPtr->RenderHtml(str);}
-                }
-            }
+            HTML(str) { 
+                TABLER() { 
+                    TABLED() {str << SlotSize << " / " << SlotsInChunk;} 
+                    TABLED() {ChainPtr->RenderHtml(str);} 
+                } 
+            } 
         }
 
         void TChainDelegator::RenderHtmlForUsage(IOutputStream &str) const {
-            HTML(str) {
-                TABLER() {
-                    TABLED() {str << SlotSize;}
-                    TABLED() {str << SlotsInChunk;}
-                    TABLED() {str << ChainPtr->GetAllocatedSlots();}
-                }
-            }
+            HTML(str) { 
+                TABLER() { 
+                    TABLED() {str << SlotSize;} 
+                    TABLED() {str << SlotsInChunk;} 
+                    TABLED() {str << ChainPtr->GetAllocatedSlots();} 
+                } 
+            } 
         }
 
 
@@ -560,38 +560,38 @@ namespace NKikimr {
         }
 
         void TAllChains::RenderHtml(IOutputStream &str) const {
-            HTML(str) {
-                TABLE_CLASS ("table table-condensed") {
-                    TABLEHEAD() {
-                        TABLER() {
-                            TABLEH() {str << "Chain";}
+            HTML(str) { 
+                TABLE_CLASS ("table table-condensed") { 
+                    TABLEHEAD() { 
+                        TABLER() { 
+                            TABLEH() {str << "Chain";} 
                             TABLEH() {str << "Reserved: [ChunkIdx, FreeSlotsInChunk]";}
-                        }
-                    }
-                    TABLEBODY() {
+                        } 
+                    } 
+                    TABLEBODY() { 
                         for (const auto & x : ChainDelegators)
                             x.RenderHtml(str);
-                    }
-                }
-            }
+                    } 
+                } 
+            } 
         }
 
         void TAllChains::RenderHtmlForUsage(IOutputStream &str) const {
-            HTML(str) {
-                TABLE_CLASS ("table table-condensed") {
-                    TABLEHEAD() {
-                        TABLER() {
-                            TABLEH() {str << "Slot Size";}
-                            TABLEH() {str << "Slots in Chunk";}
-                            TABLEH() {str << "Allocated";}
-                        }
-                    }
-                    TABLEBODY() {
+            HTML(str) { 
+                TABLE_CLASS ("table table-condensed") { 
+                    TABLEHEAD() { 
+                        TABLER() { 
+                            TABLEH() {str << "Slot Size";} 
+                            TABLEH() {str << "Slots in Chunk";} 
+                            TABLEH() {str << "Allocated";} 
+                        } 
+                    } 
+                    TABLEBODY() { 
                         for (const auto & x : ChainDelegators)
                             x.RenderHtmlForUsage(str);
-                    }
-                }
-            }
+                    } 
+                } 
+            } 
         }
 
         TVector<NPrivate::TChainLayoutBuilder::TSeg> TAllChains::GetLayout() const {
@@ -854,12 +854,12 @@ namespace NKikimr {
         //////////////////////////////////////////////////////////////////////////////////////////
         void THeap::RenderHtml(IOutputStream &str) const {
             str << "\n";
-            HTML(str) {
-                COLLAPSED_BUTTON_CONTENT("hugeheapusageid", "Heap Usage") {
+            HTML(str) { 
+                COLLAPSED_BUTTON_CONTENT("hugeheapusageid", "Heap Usage") { 
                     Chains.RenderHtmlForUsage(str);
-                }
+                } 
                 str << "<br/>";
-                COLLAPSED_BUTTON_CONTENT("hugeheapstateid", "Heap State") {
+                COLLAPSED_BUTTON_CONTENT("hugeheapstateid", "Heap State") { 
                     str << "FreeChunks: ";
                     if (FreeChunks.empty()) {
                         str << "empty";
@@ -870,8 +870,8 @@ namespace NKikimr {
                     }
                     str << "<br>";
                     Chains.RenderHtml(str);
-                }
-            }
+                } 
+            } 
             str << "\n";
         }
 
diff --git a/ydb/core/blobstorage/vdisk/hulldb/base/blobstorage_hullsatisfactionrank.cpp b/ydb/core/blobstorage/vdisk/hulldb/base/blobstorage_hullsatisfactionrank.cpp
index 74ed554356..0609d0dc6b 100644
--- a/ydb/core/blobstorage/vdisk/hulldb/base/blobstorage_hullsatisfactionrank.cpp
+++ b/ydb/core/blobstorage/vdisk/hulldb/base/blobstorage_hullsatisfactionrank.cpp
@@ -98,26 +98,26 @@ namespace NKikimr {
     }
 
     void TDynamicPDiskWeightsManager::RenderHtml(IOutputStream &str) const {
-        HTML(str) {
-            TABLE_CLASS ("table table-condensed") {
-                TABLEHEAD() {
-                    TABLER() {
-                        TABLEH() { str << "Component"; }
-                        TABLEH() { str << "Status"; }
-                    }
-                }
-                TABLEBODY() {
-                    TABLER() {
-                        TABLED() { str << "FreshRank"; }
-                        TABLED() { FreshWeight.RenderHtml(str); }
-                    }
-                    TABLER() {
-                        TABLED() { str << "LevelRank"; }
-                        TABLED() { LevelWeight.RenderHtml(str); }
-                    }
-                }
-            }
-        }
+        HTML(str) { 
+            TABLE_CLASS ("table table-condensed") { 
+                TABLEHEAD() { 
+                    TABLER() { 
+                        TABLEH() { str << "Component"; } 
+                        TABLEH() { str << "Status"; } 
+                    } 
+                } 
+                TABLEBODY() { 
+                    TABLER() { 
+                        TABLED() { str << "FreshRank"; } 
+                        TABLED() { FreshWeight.RenderHtml(str); } 
+                    } 
+                    TABLER() { 
+                        TABLED() { str << "LevelRank"; } 
+                        TABLED() { LevelWeight.RenderHtml(str); } 
+                    } 
+                } 
+            } 
+        } 
     }
 
     void TDynamicPDiskWeightsManager::ToWhiteboard(
diff --git a/ydb/core/blobstorage/vdisk/localrecovery/localrecovery_defs.cpp b/ydb/core/blobstorage/vdisk/localrecovery/localrecovery_defs.cpp
index f75654db66..4fc51e1ba3 100644
--- a/ydb/core/blobstorage/vdisk/localrecovery/localrecovery_defs.cpp
+++ b/ydb/core/blobstorage/vdisk/localrecovery/localrecovery_defs.cpp
@@ -181,10 +181,10 @@ namespace NKikimr {
 
     void TLocalRecoveryInfo::OutputHtml(IOutputStream &str) const {
         str << "\n";
-        HTML(str) {
-            DIV_CLASS("panel panel-default") {
-                DIV_CLASS("panel-heading") {str << "Local Recovery Info";}
-                DIV_CLASS("panel-body") {
+        HTML(str) { 
+            DIV_CLASS("panel panel-default") { 
+                DIV_CLASS("panel-heading") {str << "Local Recovery Info";} 
+                DIV_CLASS("panel-body") { 
                     str << "LocalRecoveryStartTime: " << LocalRecoveryStartTime << "<br>";
                     if (LocalRecoveryFinishTime.GetValue() == 0) {
                         // recovery is in progress
@@ -196,9 +196,9 @@ namespace NKikimr {
                         str << "LocalRecoveryDuration: " << duration << "<br>";
                     }
                     OutputCounters(str, "", "<br>", "<hr>\n");
-                }
-            }
-        }
+                } 
+            } 
+        } 
         str << "\n";
     }
 
diff --git a/ydb/core/blobstorage/vdisk/query/query_statdb.cpp b/ydb/core/blobstorage/vdisk/query/query_statdb.cpp
index 65bded589f..377bd452c0 100644
--- a/ydb/core/blobstorage/vdisk/query/query_statdb.cpp
+++ b/ydb/core/blobstorage/vdisk/query/query_statdb.cpp
@@ -46,7 +46,7 @@ namespace NKikimr {
 
             void Finish(IOutputStream &str, bool pretty) {
 
-                HTML(str) {
+                HTML(str) { 
                     if (pretty) {
                         TABLED_ATTRS({{"data-text", Sprintf("%" PRIu64, Num)}, {"align", "right"}}) { SMALL() {
                             FormatHumanReadable(str, Num, 1000, 2, ItemSuffix);
@@ -58,9 +58,9 @@ namespace NKikimr {
                         TABLED() {SMALL() {str << Num;}}
                         TABLED() {SMALL() {str << DataSize;}}
                     }
-                    TABLED() {SMALL() {str << MinId.ToString();}}
-                    TABLED() {SMALL() {str << MaxId.ToString();}}
-                }
+                    TABLED() {SMALL() {str << MinId.ToString();}} 
+                    TABLED() {SMALL() {str << MaxId.ToString();}} 
+                } 
             }
         };
 
@@ -82,7 +82,7 @@ namespace NKikimr {
 
             void Finish(IOutputStream &str, ui64 tabletID, bool pretty) {
                 auto tabletIDOutputer = [tabletID] (IOutputStream &str) {
-                    HTML(str) {
+                    HTML(str) { 
                         TABLED() {
                             SMALL() {
                                 // tabletId and hyperlink to per tablet stat
@@ -90,7 +90,7 @@ namespace NKikimr {
                                     << "\">" << tabletID << "</a>";
                             }
                         }
-                    }
+                    } 
                 };
                 Finish(str, tabletIDOutputer, pretty);
             }
@@ -107,17 +107,17 @@ namespace NKikimr {
                         std::function<void (IOutputStream &)> t,
                         bool pretty)
             {
-                HTML(str) {
+                HTML(str) { 
                     for (auto &c : Channels) {
                         if (!c.Empty()) {
-                            TABLER() {
+                            TABLER() { 
                                 t(str);
-                                TABLED() {SMALL() {str << (&c - &Channels.front());}}
+                                TABLED() {SMALL() {str << (&c - &Channels.front());}} 
                                 c.Finish(str, pretty);
-                            }
+                            } 
                         }
                     }
-                }
+                } 
             }
         };
 
@@ -171,53 +171,53 @@ namespace NKikimr {
             }
 
             void Finish(IOutputStream &str, bool pretty) {
-                HTML(str) {
-                    DIV_CLASS("panel panel-info") {
-                        DIV_CLASS("panel-heading") {
+                HTML(str) { 
+                    DIV_CLASS("panel panel-info") { 
+                        DIV_CLASS("panel-heading") { 
                             str << "Per (Tablet, Channel) LogoBlobs DB Statistics "
                                 << "(raw data w/o garbage collection)";
-                        }
-                        DIV_CLASS("panel-body") {
+                        } 
+                        DIV_CLASS("panel-body") { 
                             TABLE_SORTABLE_CLASS ("table table-condensed") {
-                                TABLEHEAD() {
-                                    TABLER() {
-                                        TABLEH() {str << "TabletID";}
-                                        TABLEH() {str << "Channel";}
-                                        TABLEH() {str << "Blobs";}
-                                        TABLEH() {str << "DataSize";}
-                                        TABLEH() {str << "MinId";}
-                                        TABLEH() {str << "MaxId";}
-                                    }
-                                }
-                                TABLEBODY() {
+                                TABLEHEAD() { 
+                                    TABLER() { 
+                                        TABLEH() {str << "TabletID";} 
+                                        TABLEH() {str << "Channel";} 
+                                        TABLEH() {str << "Blobs";} 
+                                        TABLEH() {str << "DataSize";} 
+                                        TABLEH() {str << "MinId";} 
+                                        TABLEH() {str << "MaxId";} 
+                                    } 
+                                } 
+                                TABLEBODY() { 
                                     for (const auto &x : Hash)
                                         x.second->Finish(str, pretty);
-                                }
-                            }
-                        }
-                    }
-                    DIV_CLASS("panel panel-info") {
-                        DIV_CLASS("panel-heading") {
+                                } 
+                            } 
+                        } 
+                    } 
+                    DIV_CLASS("panel panel-info") { 
+                        DIV_CLASS("panel-heading") { 
                             str << "Per Channel (all tablets) LogoBlobs DB Statistics";
-                        }
-                        DIV_CLASS("panel-body") {
+                        } 
+                        DIV_CLASS("panel-body") { 
                             TABLE_SORTABLE_CLASS ("table table-condensed") {
-                                TABLEHEAD() {
-                                    TABLER() {
-                                        TABLEH() {str << "Channel";}
-                                        TABLEH() {str << "Blobs";}
-                                        TABLEH() {str << "DataSize";}
-                                        TABLEH() {str << "MinId";}
-                                        TABLEH() {str << "MaxId";}
-                                    }
-                                }
-                                TABLEBODY() {
+                                TABLEHEAD() { 
+                                    TABLER() { 
+                                        TABLEH() {str << "Channel";} 
+                                        TABLEH() {str << "Blobs";} 
+                                        TABLEH() {str << "DataSize";} 
+                                        TABLEH() {str << "MinId";} 
+                                        TABLEH() {str << "MaxId";} 
+                                    } 
+                                } 
+                                TABLEBODY() { 
                                     AllChannels.Finish(str, pretty);
-                                }
-                            }
-                        }
-                    }
-                }
+                                } 
+                            } 
+                        } 
+                    } 
+                } 
             }
         };
     }
diff --git a/ydb/core/blobstorage/vdisk/repl/blobstorage_repl.cpp b/ydb/core/blobstorage/vdisk/repl/blobstorage_repl.cpp
index 34be219abc..8db9509b85 100644
--- a/ydb/core/blobstorage/vdisk/repl/blobstorage_repl.cpp
+++ b/ydb/core/blobstorage/vdisk/repl/blobstorage_repl.cpp
@@ -41,25 +41,25 @@ namespace NKikimr {
     }
 
     void TEvReplFinished::TInfo::OutputHtml(IOutputStream &str) const {
-#define PARAM(NAME, VALUE) TABLER() { \
-            TABLED() { str << #NAME; } \
-            TABLED() { str << VALUE; } \
-        }
+#define PARAM(NAME, VALUE) TABLER() { \ 
+            TABLED() { str << #NAME; } \ 
+            TABLED() { str << VALUE; } \ 
+        } 
 
 #define PARAM_V(NAME) PARAM(NAME, NAME)
 
-#define GROUP(NAME) TABLER() TABLED_ATTRS({{"colspan", "2"}}) COLLAPSED_BUTTON_CONTENT(CreateGuidAsString(), NAME) TABLE()
+#define GROUP(NAME) TABLER() TABLED_ATTRS({{"colspan", "2"}}) COLLAPSED_BUTTON_CONTENT(CreateGuidAsString(), NAME) TABLE() 
 
-        HTML(str) {
-            SMALL() {
-                TABLE() {
-                    TABLER() {
-                        TABLEH() { str << "Parameter"; }
-                        TABLEH() { str << "Value"; }
-                    }
-                    STRONG() {
+        HTML(str) { 
+            SMALL() { 
+                TABLE() { 
+                    TABLER() { 
+                        TABLEH() { str << "Parameter"; } 
+                        TABLEH() { str << "Value"; } 
+                    } 
+                    STRONG() { 
                         PARAM(Summary, DataRecoverySuccess << "/" << RecoveryScheduled << "/" << (ReplicaOk + RecoveryScheduled));
-                    }
+                    } 
                     PARAM(Start, ToStringLocalTimeUpToSeconds(Start));
                     PARAM(End, ToStringLocalTimeUpToSeconds(End));
                     PARAM(Duration, End - Start);
@@ -67,19 +67,19 @@ namespace NKikimr {
                     PARAM_V(Eof);
                     PARAM_V(DonorVDiskId);
                     PARAM_V(DropDonor);
-                    GROUP("Plan Generation Stats") {
+                    GROUP("Plan Generation Stats") { 
                         PARAM_V(ReplicaOk);
                         PARAM_V(RecoveryScheduled);
                         PARAM_V(IgnoredDueToGC);
-                    }
-                    GROUP("Plan Execution Stats") {
+                    } 
+                    GROUP("Plan Execution Stats") { 
                         PARAM_V(DataRecoverySuccess);
                         PARAM_V(DataRecoveryFailure);
                         PARAM_V(DataRecoveryNoParts);
                         PARAM_V(DataRecoverySkip);
                         PARAM_V(DataRecoveryPhantomCheck);
-                    }
-                    GROUP("Detailed Stats") {
+                    } 
+                    GROUP("Detailed Stats") { 
                         PARAM_V(BytesRecovered);
                         PARAM_V(LogoBlobsRecovered);
                         PARAM_V(HugeLogoBlobsRecovered);
@@ -91,8 +91,8 @@ namespace NKikimr {
                         PARAM_V(PartsExact);
                         PARAM_V(PartsRestored);
                         PARAM_V(PartsMissing);
-                    }
-                    GROUP("Durations") {
+                    } 
+                    GROUP("Durations") { 
                         PARAM_V(PreparePlanDuration);
                         PARAM_V(TokenWaitDuration);
                         PARAM_V(ProxyWaitDuration);
@@ -101,8 +101,8 @@ namespace NKikimr {
                         PARAM_V(CommitDuration);
                         PARAM_V(OtherDuration);
                         PARAM_V(PhantomDuration);
-                    }
-                    GROUP("VDisk Stats") {
+                    } 
+                    GROUP("VDisk Stats") { 
                         PARAM_V(ProxyStat->VDiskReqs);
                         PARAM_V(ProxyStat->VDiskRespOK);
                         PARAM_V(ProxyStat->VDiskRespRACE);
@@ -114,10 +114,10 @@ namespace NKikimr {
                         PARAM_V(ProxyStat->LogoBlobNotOK);
                         PARAM_V(ProxyStat->LogoBlobDataSize);
                         PARAM_V(ProxyStat->OverflowedMsgs);
-                    }
-                }
-            }
-        }
+                    } 
+                } 
+            } 
+        } 
 #undef GROUP
 #undef PARAM_V
 #undef PARAM
@@ -413,13 +413,13 @@ namespace NKikimr {
 
         template<typename Iter>
         void OutputRow(IOutputStream &str, Iter &it, Iter &e) {
-            HTML(str) {
-                TABLER() {
+            HTML(str) { 
+                TABLER() { 
                     for (unsigned i = 0; i < 3 && it != e; i++, ++it) {
-                        TABLED() { (*it)->OutputHtml(str); }
+                        TABLED() { (*it)->OutputHtml(str); } 
                     }
-                }
-            }
+                } 
+            } 
         }
 
         template<typename Iter>
@@ -427,18 +427,18 @@ namespace NKikimr {
             if (it != e) {
                 OutputRow(str, it, e);
                 if (it != e) {
-                    HTML(str) {
-                        TABLER() {
+                    HTML(str) { 
+                        TABLER() { 
                             str << "<td colspan=3>";
                             TString id = CreateGuidAsString();
-                            COLLAPSED_BUTTON_CONTENT(id, "More") {
-                                TABLE() {
+                            COLLAPSED_BUTTON_CONTENT(id, "More") { 
+                                TABLE() { 
                                     OutputQuantums(str, it, e);
-                                }
-                            }
+                                } 
+                            } 
                             str << "</td>";
-                        }
-                    }
+                        } 
+                    } 
                 }
             }
         }
@@ -449,10 +449,10 @@ namespace NKikimr {
             TStringStream str;
             unsigned historySize = HistorySize;
             str << "\n";
-            HTML(str) {
-                DIV_CLASS("panel panel-success") {
-                    DIV_CLASS("panel-heading") {str << "Repl";}
-                    DIV_CLASS("panel-body") {
+            HTML(str) { 
+                DIV_CLASS("panel panel-success") { 
+                    DIV_CLASS("panel-heading") {str << "Repl";} 
+                    DIV_CLASS("panel-body") { 
                         auto makeConnectedDonorDisks = [&]() -> TString {
                             TStringBuilder s;
                             s << "[";
@@ -472,19 +472,19 @@ namespace NKikimr {
                             << "NumConnectedPeerDisks: " << ConnectedPeerDisks.size() << "<br>"
                             << "ConnectedDonorDisks: " << makeConnectedDonorDisks() << "<br>";
 
-                        TABLE_CLASS ("table table-condensed") {
-                            CAPTION() STRONG() {str << "Last " << historySize << " replication quantums"; }
-                            TABLEBODY() {
+                        TABLE_CLASS ("table table-condensed") { 
+                            CAPTION() STRONG() {str << "Last " << historySize << " replication quantums"; } 
+                            TABLEBODY() { 
                                 TVector<TEvReplFinished::TInfoPtr> quantums;
                                 for (auto it = History.Begin(); it != History.End(); ++it) {
                                     quantums.push_back(*it);
                                 }
                                 OutputQuantums(str, quantums.rbegin(), quantums.rend());
-                            }
-                        }
-                    }
-                }
-            }
+                            } 
+                        } 
+                    } 
+                } 
+            } 
             str << "\n";
 
             Send(ev->Sender, new NMon::TEvHttpInfoRes(str.Str(), TDbMon::ReplId));
diff --git a/ydb/core/blobstorage/vdisk/skeleton/blobstorage_monactors.cpp b/ydb/core/blobstorage/vdisk/skeleton/blobstorage_monactors.cpp
index 44b3c58c9c..0a5111cbd3 100644
--- a/ydb/core/blobstorage/vdisk/skeleton/blobstorage_monactors.cpp
+++ b/ydb/core/blobstorage/vdisk/skeleton/blobstorage_monactors.cpp
@@ -146,25 +146,25 @@ namespace NKikimr {
 
         void Finish(const TActorContext &ctx) {
             TStringStream str;
-            HTML(str) {
-                DIV_CLASS("row") {
+            HTML(str) { 
+                DIV_CLASS("row") { 
                     DIV_CLASS("col-md-6") {Db->VCtx->VDiskCounters->OutputHtml(str);}
-                    DIV_CLASS("col-md-6") {Output(SkeletonState, str, "Skeleton State");}
-                    DIV_CLASS("col-md-6") {Output(LogCutterInfo, str, "Log Cutter");}
-                    DIV_CLASS("col-md-6") {Output(HugeKeeperInfo, str, "Huge Blob Keeper");}
-                    DIV_CLASS("col-md-6") {Output(DskSpaceTrackerInfo, str, "Disk Space Tracker");}
-                    DIV_CLASS("col-md-6") {Output(LocalRecovInfo, str, "Local Recovery Info");}
+                    DIV_CLASS("col-md-6") {Output(SkeletonState, str, "Skeleton State");} 
+                    DIV_CLASS("col-md-6") {Output(LogCutterInfo, str, "Log Cutter");} 
+                    DIV_CLASS("col-md-6") {Output(HugeKeeperInfo, str, "Huge Blob Keeper");} 
+                    DIV_CLASS("col-md-6") {Output(DskSpaceTrackerInfo, str, "Disk Space Tracker");} 
+                    DIV_CLASS("col-md-6") {Output(LocalRecovInfo, str, "Local Recovery Info");} 
                     DIV_CLASS("col-md-6") {Output(DelayedHugeBlobDeleterInfo, str, "Delayed Huge Blob Deleter Info");}
                     DIV_CLASS("col-md-6") {Output(ScrubInfo, str, "Scrub Info");}
                     // uses column wrapping (sum is greater than 12)
-                }
+                } 
                 Output(HullInfo, str, "Hull");
                 Output(SyncLogInfo, str, "Sync Log");
                 Output(SyncerInfo, str, "Syncer");
                 Output(ReplInfo, str, "Repl");
                 Output(AnubisRunnerInfo, str, "Anubis");
                 Output(HandoffInfo, str, "Handoff");
-            }
+            } 
 
             ctx.Send(NotifyId, new TEvents::TEvActorDied);
             ctx.Send(Ev->Sender, new NMon::TEvHttpInfoRes(str.Str()));
@@ -250,45 +250,45 @@ namespace NKikimr {
         TString BuildForm(const TString &dbnameParam, const TString &itemName, const TString &placeholder, bool index) {
             TStringStream str;
 
-            HTML(str) {
-                FORM_CLASS("form-horizontal") {
+            HTML(str) { 
+                FORM_CLASS("form-horizontal") { 
                     // hidden forms to pass current cgi params
                     str << "<input type=\"hidden\" name=\"type\" value=\"query\">";
                     str << "<input type=\"hidden\" name=\"dbname\" value=\"" << dbnameParam << "\">";
 
-                    DIV_CLASS("control-group") {
-                        LABEL_CLASS_FOR("control-label", "inputFrom") {str << "From (" << itemName << ")";}
-                        DIV_CLASS("controls") {
+                    DIV_CLASS("control-group") { 
+                        LABEL_CLASS_FOR("control-label", "inputFrom") {str << "From (" << itemName << ")";} 
+                        DIV_CLASS("controls") { 
                             str << "<input type=\"text\" id=\"inputFrom\" "
                             "placeholder=\"" << placeholder << "\" name=\"from\">";
-                        }
-                    }
+                        } 
+                    } 
 
-                    DIV_CLASS("control-group") {
-                        LABEL_CLASS_FOR("control-label", "inputTo") {str << "To (" << itemName << ")";}
-                        DIV_CLASS("controls") {
+                    DIV_CLASS("control-group") { 
+                        LABEL_CLASS_FOR("control-label", "inputTo") {str << "To (" << itemName << ")";} 
+                        DIV_CLASS("controls") { 
                             str << "<input type=\"text\" id=\"inputTo\" "
                             "placeholder=\"" << placeholder << "\" name=\"to\">";
-                        }
-                    }
+                        } 
+                    } 
 
-                    DIV_CLASS("control-group") {
-                        DIV_CLASS("controls") {
+                    DIV_CLASS("control-group") { 
+                        DIV_CLASS("controls") { 
                             if (index) {
-                                LABEL_CLASS("checkbox") {
+                                LABEL_CLASS("checkbox") { 
                                     str << "<input type=\"checkbox\" name=\"IndexOnly\" checked>Index Only</input>";
-                                }
+                                } 
                             }
-                            LABEL_CLASS("checkbox") {
+                            LABEL_CLASS("checkbox") { 
                                 str << "<input type=\"checkbox\" name=\"Internals\" checked>Show Internals</input>";
-                            }
+                            } 
                             str << "<button type=\"submit\" name=\"submit\" class=\"btn btn-default\">Submit</button>";
                             str << "<strong>or</strong>";
                             str << "<button type=\"submit\" name=\"all\" class=\"btn btn-default\">Browse DB</button>";
-                        }
-                    }
-                }
-            }
+                        } 
+                    } 
+                } 
+            } 
 
             return str.Str();
         }
@@ -402,8 +402,8 @@ namespace NKikimr {
         }
 
         void OutputOneQueryResult(IOutputStream &str, const NKikimrBlobStorage::TQueryResult &q) {
-            HTML(str) {
-                DIV_CLASS("well well-small") {
+            HTML(str) { 
+                DIV_CLASS("well well-small") { 
                     const TLogoBlobID id = LogoBlobIDFromLogoBlobID(q.GetBlobID());
                     const TIngress ingress(q.GetIngress());
                     str << "Status: " << NKikimrProto::EReplyStatus_Name(q.GetStatus()) << "<br>";
@@ -415,8 +415,8 @@ namespace NKikimr {
                         str << "FullDataSize: " << q.GetFullDataSize() << "<br>";
                         str << "Data: " << q.GetBuffer() << "<br>";
                     }
-                }
-            }
+                } 
+            } 
         }
 
         void Handle(TEvBlobStorage::TEvVGetResult::TPtr &ev, const TActorContext &ctx) {
@@ -425,9 +425,9 @@ namespace NKikimr {
             ui32 size = rec.ResultSize();
             TStringStream str;
 
-            HTML(str) {
-                DIV_CLASS("row") {
-                    STRONG() {
+            HTML(str) { 
+                DIV_CLASS("row") { 
+                    STRONG() { 
                         str << "From: " << From.ToString() << "<br>";
                         if (IsRangeQuery)
                             str << "To: " << To.ToString() << "<br>";
@@ -436,15 +436,15 @@ namespace NKikimr {
                         str << "Status: " << NKikimrProto::EReplyStatus_Name(rec.GetStatus()) << "<br>";
                         str << "VDisk: " << vdisk.ToString() << "<br>";
                         str << "Result size: " << size << "<br>";
-                    }
-                }
-                DIV_CLASS("row") {
+                    } 
+                } 
+                DIV_CLASS("row") { 
                     for (ui32 i = 0; i < size; i++) {
                         const NKikimrBlobStorage::TQueryResult &q = rec.GetResult(i);
                         OutputOneQueryResult(str, q);
                     }
-                }
-            }
+                } 
+            } 
 
             Finish(ctx, new NMon::TEvHttpInfoRes(str.Str()));
         }
@@ -593,8 +593,8 @@ namespace NKikimr {
         void OutputOneResult(IOutputStream &str, const NKikimrBlobStorage::TBarrierKey &k,
                              const NKikimrBlobStorage::TBarrierVal &v) {
             TIngressCachePtr ingressCache = TIngressCache::Create(Top, SelfVDiskId);
-            HTML(str) {
-                DIV_CLASS("well well-small") {
+            HTML(str) { 
+                DIV_CLASS("well well-small") { 
                     str << "TabletId: " << k.GetTabletId() << "<br>";
                     str << "Channel: " << k.GetChannel() << "<br>";
                     str << "RecordGeneration: " << k.GetRecordGeneration() << "<br>";
@@ -605,8 +605,8 @@ namespace NKikimr {
                         const TBarrierIngress ingress(TBarrierIngress::CreateFromRaw(v.GetIngress()));
                         str << "Ingress: " << ingress.ToString(ingressCache.Get()) << "<br>";
                     }
-                }
-            }
+                } 
+            } 
         }
 
         void Handle(TEvBlobStorage::TEvVGetBarrierResult::TPtr &ev, const TActorContext &ctx) {
@@ -621,20 +621,20 @@ namespace NKikimr {
             const ui32 size = rec.KeysSize();;
             TStringStream str;
 
-            HTML(str) {
-                DIV_CLASS("row") {
-                    STRONG() {
+            HTML(str) { 
+                DIV_CLASS("row") { 
+                    STRONG() { 
                         str << "Status: " << NKikimrProto::EReplyStatus_Name(rec.GetStatus()) << "<br>";
                         str << "VDisk: " << vdisk.ToString() << "<br>";
                         str << "Result size: " << size << "<br>";
-                    }
-                }
-                DIV_CLASS("row") {
+                    } 
+                } 
+                DIV_CLASS("row") { 
                     for (ui32 i = 0; i < size; i++) {
                         OutputOneResult(str, rec.GetKeys(i), rec.GetValues(i));
                     }
-                }
-            }
+                } 
+            } 
 
             Finish(ctx, new NMon::TEvHttpInfoRes(str.Str()));
         }
@@ -928,10 +928,10 @@ namespace NKikimr {
 
         void Finish(const TActorContext &ctx) {
             TStringStream str;
-            HTML(str) {
+            HTML(str) { 
                 Output(SkeletonFrontAnswer, str, "SkeletonFront");
                 Output(SkeletonAnswer, str, "Skeleton");
-            }
+            } 
 
             ctx.Send(NotifyId, new TEvents::TEvActorDied);
             ctx.Send(Ev->Sender, new NMon::TEvHttpInfoRes(str.Str()));
diff --git a/ydb/core/blobstorage/vdisk/skeleton/blobstorage_skeleton.cpp b/ydb/core/blobstorage/vdisk/skeleton/blobstorage_skeleton.cpp
index 96b813d317..51ed3ebab7 100644
--- a/ydb/core/blobstorage/vdisk/skeleton/blobstorage_skeleton.cpp
+++ b/ydb/core/blobstorage/vdisk/skeleton/blobstorage_skeleton.cpp
@@ -1921,66 +1921,66 @@ namespace NKikimr {
             constexpr ui32 threshold = 10000u;
             std::pair<ui32, ui32> actorQueues = ctx.CountMailboxEvents(threshold);
 
-            HTML(str) {
-                DIV_CLASS("panel panel-info") {
-                    DIV_CLASS("panel-heading") {
+            HTML(str) { 
+                DIV_CLASS("panel panel-info") { 
+                    DIV_CLASS("panel-heading") { 
                         str << "Skeleton";
-                    }
-                    DIV_CLASS("panel-body") {
+                    } 
+                    DIV_CLASS("panel-body") { 
                         if (OverloadHandler) {
                             OverloadHandler->RenderHtml(str);
                         }
 
-                        TABLE_CLASS ("table table-condensed") {
-                            TABLEHEAD() {
-                                TABLER() {
-                                    TABLEH() {str << "Queues";}
-                                    TABLEH() {str << "Size";}
-                                }
-                            }
-                            TABLEBODY() {
-                                TABLER() {
-                                    TABLED() {str << "ActorQueue";}
-                                    TABLED() {
+                        TABLE_CLASS ("table table-condensed") { 
+                            TABLEHEAD() { 
+                                TABLER() { 
+                                    TABLEH() {str << "Queues";} 
+                                    TABLEH() {str << "Size";} 
+                                } 
+                            } 
+                            TABLEBODY() { 
+                                TABLER() { 
+                                    TABLED() {str << "ActorQueue";} 
+                                    TABLED() { 
                                         if (actorQueues.first >= threshold)
                                             str << "More than " << threshold;
                                         else
                                             str << actorQueues.first;
-                                    }
-                                }
-                                TABLER() {
-                                    TABLED() {str << "MailboxQueue";}
-                                    TABLED() {
+                                    } 
+                                } 
+                                TABLER() { 
+                                    TABLED() {str << "MailboxQueue";} 
+                                    TABLED() { 
                                         if (actorQueues.second >= threshold)
                                             str << "More than " << threshold;
                                         else
                                             str << actorQueues.second;
-                                    }
-                                }
-                                TABLER() {
-                                    TABLED() {str << "ElapsedTicksAsSeconds";}
-                                    TABLED() {str << GetElapsedTicksAsSeconds();}
-                                }
-                                TABLER() {
-                                    TABLED() {str << "HandledEvents";}
-                                    TABLED() {str << GetHandledEvents();}
-                                }
-                            }
-                        }
-
-                        TABLE_CLASS("table table-condensed") {
-                            TABLEHEAD() {
-                                TABLER() {
-                                    TABLEH() {str << "Setting";}
-                                    TABLEH() {str << "Value";}
-                                }
-                            }
-                            TABLEBODY() {
-                                TABLER() {
-                                    TABLED() {str << "SelfVDiskID";}
-                                    TABLED() {str << SelfVDiskId.ToString();}
-                                }
-                                TABLER() {
+                                    } 
+                                } 
+                                TABLER() { 
+                                    TABLED() {str << "ElapsedTicksAsSeconds";} 
+                                    TABLED() {str << GetElapsedTicksAsSeconds();} 
+                                } 
+                                TABLER() { 
+                                    TABLED() {str << "HandledEvents";} 
+                                    TABLED() {str << GetHandledEvents();} 
+                                } 
+                            } 
+                        } 
+
+                        TABLE_CLASS("table table-condensed") { 
+                            TABLEHEAD() { 
+                                TABLER() { 
+                                    TABLEH() {str << "Setting";} 
+                                    TABLEH() {str << "Value";} 
+                                } 
+                            } 
+                            TABLEBODY() { 
+                                TABLER() { 
+                                    TABLED() {str << "SelfVDiskID";} 
+                                    TABLED() {str << SelfVDiskId.ToString();} 
+                                } 
+                                TABLER() { 
                                     TABLED() {str << "StoragePoolName";}
                                     TABLED() {str << Config->BaseInfo.StoragePoolName;}
                                 }
@@ -1989,7 +1989,7 @@ namespace NKikimr {
                                     TABLED() {str << Db->GType.GetErasure();}
                                 }
                                 TABLER() {
-                                    TABLED() {str << "OrderNum/TotalVDisks";}
+                                    TABLED() {str << "OrderNum/TotalVDisks";} 
                                     TABLED() {
                                         if (HullCtx && HullCtx->IngressCache) {
                                             str << ui32(HullCtx->IngressCache->VDiskOrderNum) << "/"
@@ -1998,25 +1998,25 @@ namespace NKikimr {
                                             str << "Unknown/Unknown";
                                         }
                                     }
-                                }
-                                TABLER() {
-                                    TABLED() {str << "VDiskKind";}
+                                } 
+                                TABLER() { 
+                                    TABLED() {str << "VDiskKind";} 
                                     TABLED() {str << Config->BaseInfo.Kind;}
-                                }
-                                TABLER() {
-                                    TABLED() {str << "PDiskId";}
+                                } 
+                                TABLER() { 
+                                    TABLED() {str << "PDiskId";} 
                                     TABLED() {str << Config->BaseInfo.PDiskId;}
-                                }
-                                TABLER() {
-                                    TABLED() {str << "BlobStorage GroupId (decimal)";}
-                                    TABLED() {str << GInfo->GroupID;}
-                                }
+                                } 
+                                TABLER() { 
+                                    TABLED() {str << "BlobStorage GroupId (decimal)";} 
+                                    TABLED() {str << GInfo->GroupID;} 
+                                } 
                                 TABLER() {
                                     TABLED() {str << "VDiskIncarnationGuid";}
                                     TABLED() {str << Db->GetVDiskIncarnationGuid();}
                                 }
-                            }
-                        }
+                            } 
+                        } 
 
                         if (PDiskCtx && PDiskCtx->Dsk)
                             PDiskCtx->Dsk->OutputHtml(str);
@@ -2027,10 +2027,10 @@ namespace NKikimr {
                                 OutOfSpaceLogic->RenderHtml(str);
                             }
                         }
-                    }
-                }
-            }
-
+                    } 
+                } 
+            } 
+ 
         }
 
         ////////////////////////////////////////////////////////////////////////
diff --git a/ydb/core/blobstorage/vdisk/skeleton/blobstorage_skeletonfront.cpp b/ydb/core/blobstorage/vdisk/skeleton/blobstorage_skeletonfront.cpp
index 08c32a8921..05498d3efc 100644
--- a/ydb/core/blobstorage/vdisk/skeleton/blobstorage_skeletonfront.cpp
+++ b/ydb/core/blobstorage/vdisk/skeleton/blobstorage_skeletonfront.cpp
@@ -373,23 +373,23 @@ namespace NKikimr {
                 //    are different from zero
                 TStringStream str;
                 str << "\n";
-                HTML(str) {
-                    DIV_CLASS("panel panel-default") {
-                        DIV_CLASS("panel-heading") {
-                            SMALL() {
-                                STRONG() {str << "INT: ";}
-                                str << Name;
-                            }
-                        }
-                        DIV_CLASS("panel-body") {
+                HTML(str) { 
+                    DIV_CLASS("panel panel-default") { 
+                        DIV_CLASS("panel-heading") { 
+                            SMALL() { 
+                                STRONG() {str << "INT: ";} 
+                                str << Name; 
+                            } 
+                        } 
+                        DIV_CLASS("panel-body") { 
                             OutputRecord("InFlightCount", str, InFlightCount, GetLight(EInFlightCount));
                             OutputRecord("InFlightCost", str, InFlightCost, GetLight(EInFlightCost));
                             OutputRecord("InFlightBytes", str, InFlightBytes, GetLight(EInFlightBytes));
                             OutputRecord("DelayedCount", str, DelayedCount, GetLight(EDelayedCount));
                             OutputRecord("DelayedBytes", str, DelayedBytes, GetLight(EDelayedBytes));
-                        }
-                    }
-                }
+                        } 
+                    } 
+                } 
                 str << "\n";
                 return str.Str();
             }
@@ -538,21 +538,21 @@ namespace NKikimr {
             TString GenerateHtmlState() const {
                 TStringStream str;
                 str << "\n";
-                HTML(str) {
-                    DIV_CLASS("panel panel-default") {
-                        DIV_CLASS("panel-heading") {
-                            SMALL() {
-                                STRONG() {str << "EXT: ";}
-                                str << Name;
-                            }
-                        }
-                        DIV_CLASS("panel-body") {
+                HTML(str) { 
+                    DIV_CLASS("panel panel-default") { 
+                        DIV_CLASS("panel-heading") { 
+                            SMALL() { 
+                                STRONG() {str << "EXT: ";} 
+                                str << Name; 
+                            } 
+                        } 
+                        DIV_CLASS("panel-body") { 
                             str << "Deadline: " << SkeletonFrontDeadline->Val() << "<br>";
                             str << "Overflow: " << SkeletonFrontOverflow->Val() << "<br>";
                             str << "IncorrectMsgId: " << SkeletonFrontIncorrectMsgId->Val() << "<br>";
-                        }
-                    }
-                }
+                        } 
+                    } 
+                } 
                 str << "\n";
 
 
@@ -804,48 +804,48 @@ namespace NKikimr {
             std::pair<ui32, ui32> actorQueues = ctx.CountMailboxEvents(threshold);
 
             TStringStream str;
-            HTML(str) {
+            HTML(str) { 
                 DIV_CLASS("panel panel-default") {
-                    DIV_CLASS("panel-heading") {
+                    DIV_CLASS("panel-heading") { 
                         str << "SkeletonFront Actor";
-                    }
-                    DIV_CLASS("panel-body") {
-                        TABLE_CLASS ("table table-condensed") {
-                            TABLEHEAD() {
-                                TABLER() {
-                                    TABLEH() {str << "Queues";}
-                                    TABLEH() {str << "Size";}
-                                }
-                            }
-                            TABLEBODY() {
-                                TABLER() {
-                                    TABLED() {str << "ActorQueue";}
-                                    TABLED() {
+                    } 
+                    DIV_CLASS("panel-body") { 
+                        TABLE_CLASS ("table table-condensed") { 
+                            TABLEHEAD() { 
+                                TABLER() { 
+                                    TABLEH() {str << "Queues";} 
+                                    TABLEH() {str << "Size";} 
+                                } 
+                            } 
+                            TABLEBODY() { 
+                                TABLER() { 
+                                    TABLED() {str << "ActorQueue";} 
+                                    TABLED() { 
                                         if (actorQueues.first >= threshold)
                                             str << "More than " << threshold;
                                         else
                                             str << actorQueues.first;
-                                    }
-                                }
-                                TABLER() {
-                                    TABLED() {str << "MailboxQueue";}
-                                    TABLED() {
+                                    } 
+                                } 
+                                TABLER() { 
+                                    TABLED() {str << "MailboxQueue";} 
+                                    TABLED() { 
                                         if (actorQueues.second >= threshold)
                                             str << "More than " << threshold;
                                         else
                                             str << actorQueues.second;
-                                    }
-                                }
-                                TABLER() {
-                                    TABLED() {str << "ElapsedTicksAsSeconds";}
-                                    TABLED() {str << GetElapsedTicksAsSeconds();}
-                                }
-                                TABLER() {
-                                    TABLED() {str << "HandledEvents";}
-                                    TABLED() {str << GetHandledEvents();}
-                                }
-                            }
-                        }
+                                    } 
+                                } 
+                                TABLER() { 
+                                    TABLED() {str << "ElapsedTicksAsSeconds";} 
+                                    TABLED() {str << GetElapsedTicksAsSeconds();} 
+                                } 
+                                TABLER() { 
+                                    TABLED() {str << "HandledEvents";} 
+                                    TABLED() {str << GetHandledEvents();} 
+                                } 
+                            } 
+                        } 
                     }
                 }
             }
@@ -861,7 +861,7 @@ namespace NKikimr {
                         str << "SkeletonFront";
                     }
                     DIV_CLASS("panel-body") {
-                        DIV_CLASS("row") {
+                        DIV_CLASS("row") { 
                             // global VDisk state and SkeletonFront State
                             DIV_CLASS("col-md-6") {str << GenerateHtmlStateForGlobalVDiskState(); }
                             DIV_CLASS("col-md-6") {str << GenerateHtmlStateForSkeletonFrontActor(ctx); }
@@ -875,21 +875,21 @@ namespace NKikimr {
                             DIV_CLASS("col-md-2") {str << IntQueueFastGets->GenerateHtmlState();}
                             DIV_CLASS("col-md-2") {str << IntQueueDiscover->GenerateHtmlState();}
                             DIV_CLASS("col-md-2") {str << IntQueueLowGets->GenerateHtmlState();}
-                        }
-                        DIV_CLASS("row") {
+                        } 
+                        DIV_CLASS("row") { 
                             // ext queues
-                            DIV_CLASS("col-md-2") {str << ExtQueueTabletLogPuts.GenerateHtmlState();}
-                            DIV_CLASS("col-md-2") {str << ExtQueueAsyncBlobPuts.GenerateHtmlState();}
-                            DIV_CLASS("col-md-2") {str << ExtQueueUserDataPuts.GenerateHtmlState();}
-                            DIV_CLASS("col-md-2") {str << ExtQueueAsyncGets.GenerateHtmlState();}
-                            DIV_CLASS("col-md-2") {str << ExtQueueFastGets.GenerateHtmlState();}
-                            DIV_CLASS("col-md-2") {str << ExtQueueDiscoverGets.GenerateHtmlState();}
+                            DIV_CLASS("col-md-2") {str << ExtQueueTabletLogPuts.GenerateHtmlState();} 
+                            DIV_CLASS("col-md-2") {str << ExtQueueAsyncBlobPuts.GenerateHtmlState();} 
+                            DIV_CLASS("col-md-2") {str << ExtQueueUserDataPuts.GenerateHtmlState();} 
+                            DIV_CLASS("col-md-2") {str << ExtQueueAsyncGets.GenerateHtmlState();} 
+                            DIV_CLASS("col-md-2") {str << ExtQueueFastGets.GenerateHtmlState();} 
+                            DIV_CLASS("col-md-2") {str << ExtQueueDiscoverGets.GenerateHtmlState();} 
                             DIV_CLASS("col-md-2") {str << ExtQueueLowGets.GenerateHtmlState();}
                             // uses column wrapping (sum is greater than 12)
-                        }
-                    }
-                }
-            }
+                        } 
+                    } 
+                } 
+            } 
 
             return str.Str();
         }
@@ -1268,19 +1268,19 @@ namespace NKikimr {
         // Set receiving time
         ////////////////////////////////////////////////////////////////////////////
         template <typename TPtr>
-        void SetReceivedTime(TPtr& ev) {
-            using TRecord = decltype(ev->Get()->Record);
+        void SetReceivedTime(TPtr& ev) { 
+            using TRecord = decltype(ev->Get()->Record); 
             if constexpr (std::is_convertible_v<TRecord, NKikimrBlobStorage::TEvVMovedPatch>
                        || std::is_convertible_v<TRecord, NKikimrBlobStorage::TEvVPatchStart>
                        || std::is_convertible_v<TRecord, NKikimrBlobStorage::TEvVPatchDiff>
                        || std::is_convertible_v<TRecord, NKikimrBlobStorage::TEvVPatchXorDiff>
                        || std::is_convertible_v<TRecord, NKikimrBlobStorage::TEvVPut>
-                       || std::is_convertible_v<TRecord, NKikimrBlobStorage::TEvVMultiPut>
-                       || std::is_convertible_v<TRecord, NKikimrBlobStorage::TEvVGet>)
-            {
-                const double usPerCycle = 1000000.0 / NHPTimer::GetCyclesPerSecond();
-                ev->Get()->Record.MutableTimestamps()->SetReceivedByVDiskUs(GetCycleCountFast() * usPerCycle);
-            }
+                       || std::is_convertible_v<TRecord, NKikimrBlobStorage::TEvVMultiPut> 
+                       || std::is_convertible_v<TRecord, NKikimrBlobStorage::TEvVGet>) 
+            { 
+                const double usPerCycle = 1000000.0 / NHPTimer::GetCyclesPerSecond(); 
+                ev->Get()->Record.MutableTimestamps()->SetReceivedByVDiskUs(GetCycleCountFast() * usPerCycle); 
+            } 
         }
 
         ////////////////////////////////////////////////////////////////////////////
@@ -1400,7 +1400,7 @@ namespace NKikimr {
             // update GroupInfo-related fields
             GInfo = info;
             const auto& prevVDiskId = std::exchange(SelfVDiskId, vdiskId);
-
+ 
             // forward message to Skeleton
             ctx.Send(SkeletonId, new TEvVGenerationChange(vdiskId, info));
 
diff --git a/ydb/core/blobstorage/vdisk/syncer/blobstorage_syncer.cpp b/ydb/core/blobstorage/vdisk/syncer/blobstorage_syncer.cpp
index bf0179b4ed..13585fe5b2 100644
--- a/ydb/core/blobstorage/vdisk/syncer/blobstorage_syncer.cpp
+++ b/ydb/core/blobstorage/vdisk/syncer/blobstorage_syncer.cpp
@@ -98,15 +98,15 @@ namespace NKikimr {
         void RenderHtmlAndReply(const TActorContext &ctx, const TString &schedulerInfo) {
             TStringStream str;
             str << "\n";
-            HTML(str) {
-                DIV_CLASS("panel panel-warning") {
-                    DIV_CLASS("panel-heading") {str << "Syncer";}
-                    DIV_CLASS("panel-body") {
+            HTML(str) { 
+                DIV_CLASS("panel panel-warning") { 
+                    DIV_CLASS("panel-heading") {str << "Syncer";} 
+                    DIV_CLASS("panel-body") { 
                         str << LogAndPhase;
                         str << schedulerInfo;
-                    }
-                }
-            }
+                    } 
+                } 
+            } 
             str << "\n";
 
             ctx.Send(ReplyId, new NMon::TEvHttpInfoRes(str.Str(), TDbMon::SyncerInfoId));
@@ -418,15 +418,15 @@ namespace NKikimr {
         }
 
         void LogAndPhaseToHtml(IOutputStream &str) const {
-            HTML(str) {
-                DIV_CLASS("row") {
+            HTML(str) { 
+                DIV_CLASS("row") { 
                     str << "Phase: ";
                     THtmlLightSignalRenderer(ToSignalLight(Phase), ToString(Phase)).Output(str);
-                }
-                COLLAPSED_BUTTON_CONTENT("syncerlogid", "Log") {
-                    PRE() {str << Sublog.Get();}
-                }
-            }
+                } 
+                COLLAPSED_BUTTON_CONTENT("syncerlogid", "Log") { 
+                    PRE() {str << Sublog.Get();} 
+                } 
+            } 
         }
 
         void Handle(NMon::TEvHttpInfo::TPtr &ev, const TActorContext &ctx) {
diff --git a/ydb/core/blobstorage/vdisk/syncer/blobstorage_syncer_data.cpp b/ydb/core/blobstorage/vdisk/syncer/blobstorage_syncer_data.cpp
index 4de7b60fbe..8368bc1527 100644
--- a/ydb/core/blobstorage/vdisk/syncer/blobstorage_syncer_data.cpp
+++ b/ydb/core/blobstorage/vdisk/syncer/blobstorage_syncer_data.cpp
@@ -67,15 +67,15 @@ namespace NKikimr {
         }
 
         void TPeerSyncState::OutputHtml(IOutputStream &str) const {
-            HTML(str) {
+            HTML(str) { 
                 ESyncStatus state = LastSyncStatus;
                 if (NSyncer::TPeerSyncState::Good(state)) {
-                    PARA_CLASS("text-success") {str << state;}
+                    PARA_CLASS("text-success") {str << state;} 
                 } else {
-                    PARA_CLASS("text-warning") {str << state;}
+                    PARA_CLASS("text-warning") {str << state;} 
                 }
-                SMALL() {
-                    SMALL() {
+                SMALL() { 
+                    SMALL() { 
                         str << "SchTime: " << ToStringLocalTimeUpToSeconds(SchTime);
                         str << "<br>";
                         str << "LastTry: " << ToStringLocalTimeUpToSeconds(LastTry);
@@ -84,9 +84,9 @@ namespace NKikimr {
                         str << "<br>";
                         str << "[Guid, SyncedLsn]: " << SyncState.ToString();
                         str << "<br>";
-                    }
-                }
-            }
+                    } 
+                } 
+            } 
         }
 
 
@@ -108,15 +108,15 @@ namespace NKikimr {
         }
 
         void TPeerGuidInfo::OutputHtml(IOutputStream &str) const {
-            HTML(str) {
-                SMALL() {
-                    SMALL() {
+            HTML(str) { 
+                SMALL() { 
+                    SMALL() { 
                         str << "Guid: " << Info.GetGuid();
                         str << "<br>";
                         str << "State: " << Info.GetState();
-                    }
-                }
-            }
+                    } 
+                } 
+            } 
         }
 
 
diff --git a/ydb/core/blobstorage/vdisk/syncer/blobstorage_syncer_scheduler.cpp b/ydb/core/blobstorage/vdisk/syncer/blobstorage_syncer_scheduler.cpp
index 92ae94e89f..dd9c7d2445 100644
--- a/ydb/core/blobstorage/vdisk/syncer/blobstorage_syncer_scheduler.cpp
+++ b/ydb/core/blobstorage/vdisk/syncer/blobstorage_syncer_scheduler.cpp
@@ -42,9 +42,9 @@ namespace NKikimr {
             {}
 
             void operator() (IOutputStream &str, TSyncNeighbors::TConstIterator it) {
-                HTML(str) {
-                    SMALL() {
-                        STRONG() {
+                HTML(str) { 
+                    SMALL() { 
+                        STRONG() { 
                             // output VDiskID
                             auto vd = GInfo.GetVDiskId(it->VDiskIdShort);
                             str << "VDiskId: " << vd.ToStringWOGeneration() << "<br>";
@@ -58,16 +58,16 @@ namespace NKikimr {
                             } else {
                                 str << "Node: " << info->Host << ":" << info->Port << "<br>";
                             }
-                        }
-                    }
+                        } 
+                    } 
 
                     if (it->Myself) {
-                        PARA_CLASS("text-info") {str << "Self";}
+                        PARA_CLASS("text-info") {str << "Self";} 
                     } else {
                         const NSyncer::TPeer &peer = it->Get();
                         peer.OutputHtml(str);
                     }
-                }
+                } 
             }
         };
 
diff --git a/ydb/core/blobstorage/vdisk/synclog/blobstorage_synclogdsk.cpp b/ydb/core/blobstorage/vdisk/synclog/blobstorage_synclogdsk.cpp
index 1a2fb95e1c..e7005cfee1 100644
--- a/ydb/core/blobstorage/vdisk/synclog/blobstorage_synclogdsk.cpp
+++ b/ydb/core/blobstorage/vdisk/synclog/blobstorage_synclogdsk.cpp
@@ -214,9 +214,9 @@ namespace NKikimr {
         {}
 
         void TDiskRecLogSnapshot::OutputHtml(IOutputStream &str) const {
-            HTML(str) {
-                DIV_CLASS("well well-sm") {
-                    STRONG() {str << "TDiskRecLog<br>";}
+            HTML(str) { 
+                DIV_CLASS("well well-sm") { 
+                    STRONG() {str << "TDiskRecLog<br>";} 
                     if (Empty()) {
                         str << "Log is empty<br>";
                     } else {
@@ -225,9 +225,9 @@ namespace NKikimr {
                     }
                     str << "ChunksUsed: " << ManyIdxChunks.size() << "<br>";
                     // print out Index
-                    PARA() {
+                    PARA() { 
                         if (!ManyIdxChunks.empty()) {
-                            str << "Index {Lsn, ChunkIdx, OffsetInPages, PagesNum}:";
+                            str << "Index {Lsn, ChunkIdx, OffsetInPages, PagesNum}:"; 
                             unsigned counter = 0;
                             for (const auto &i: ManyIdxChunks) {
                                 if (++counter > 10) {
@@ -238,9 +238,9 @@ namespace NKikimr {
                                 i->OutputHtml(str);
                             }
                         }
-                    }
-                }
-            }
+                    } 
+                } 
+            } 
         }
 
         TString TDiskRecLogSnapshot::BoundariesToString() const {
diff --git a/ydb/core/blobstorage/vdisk/synclog/blobstorage_syncloghttp.cpp b/ydb/core/blobstorage/vdisk/synclog/blobstorage_syncloghttp.cpp
index cc10f0ceed..b4aa797f67 100644
--- a/ydb/core/blobstorage/vdisk/synclog/blobstorage_syncloghttp.cpp
+++ b/ydb/core/blobstorage/vdisk/synclog/blobstorage_syncloghttp.cpp
@@ -63,29 +63,29 @@ namespace NKikimr {
             void Finish(const TActorContext &ctx) {
                 TStringStream str;
                 str << "\n";
-                HTML(str) {
-                    DIV_CLASS("panel panel-info") {
-                        DIV_CLASS("panel-heading") {
+                HTML(str) { 
+                    DIV_CLASS("panel panel-info") { 
+                        DIV_CLASS("panel-heading") { 
                             str << "SyncLog (LogStartLsn=" << SnapPtr->LogStartLsn << "; "
                                 << "EntryPointDbgInfo="
                                 << SnapPtr->LastEntryPointDbgInfo.ToString() << ")";
-                        }
-                        DIV_CLASS("panel-body") {
-                            DIV_CLASS("row") {
-                                DIV_CLASS("col-md-6") {SnapPtr->MemSnapPtr->OutputHtml(str);}
-                                DIV_CLASS("col-md-6") {SnapPtr->DiskSnapPtr->OutputHtml(str);}
-                            }
-                            DIV_CLASS("row") {
-                                DIV_CLASS("col-md-12") {
+                        } 
+                        DIV_CLASS("panel-body") { 
+                            DIV_CLASS("row") { 
+                                DIV_CLASS("col-md-6") {SnapPtr->MemSnapPtr->OutputHtml(str);} 
+                                DIV_CLASS("col-md-6") {SnapPtr->DiskSnapPtr->OutputHtml(str);} 
+                            } 
+                            DIV_CLASS("row") { 
+                                DIV_CLASS("col-md-12") { 
                                     NeighborsPtr->OutputHtml(str, *GInfo, NodesInfoMsg);
-                                }
-                            }
+                                } 
+                            } 
                             COLLAPSED_BUTTON_CONTENT("synclog_logcontent", "Log") {
                                 PRE() {str << SublogContent;}
                             }
-                        }
-                    }
-                }
+                        } 
+                    } 
+                } 
                 str << "\n";
 
                 ctx.Send(Ev->Sender, new NMon::TEvHttpInfoRes(str.Str(), TDbMon::SyncLogId));
diff --git a/ydb/core/blobstorage/vdisk/synclog/blobstorage_synclogmem.cpp b/ydb/core/blobstorage/vdisk/synclog/blobstorage_synclogmem.cpp
index 75d6349b82..088c826969 100644
--- a/ydb/core/blobstorage/vdisk/synclog/blobstorage_synclogmem.cpp
+++ b/ydb/core/blobstorage/vdisk/synclog/blobstorage_synclogmem.cpp
@@ -61,9 +61,9 @@ namespace NKikimr {
         }
 
         void TMemRecLogSnapshot::OutputHtml(IOutputStream &str) const {
-            HTML(str) {
-                DIV_CLASS("well well-sm") {
-                    STRONG() {str << "TMemRecLog<br>";}
+            HTML(str) { 
+                DIV_CLASS("well well-sm") { 
+                    STRONG() {str << "TMemRecLog<br>";} 
                     if (Empty()) {
                         str << "Log is empty<br>";
                     } else {
@@ -73,7 +73,7 @@ namespace NKikimr {
                     str << "RecsNum: " << RecsNum << "<br>";
                     str << "PagesNum: " << Size() << "<br>";
 
-                    PARA() {
+                    PARA() { 
                         TMemRecLogSnapshot::TIterator it(this);
                         it.SeekToFirst();
                         if (it.Valid()) {
@@ -87,9 +87,9 @@ namespace NKikimr {
                             if (it.Valid())
                                 str << " <was cut>";
                         }
-                    }
-                }
-            }
+                    } 
+                } 
+            } 
         }
 
         TString TMemRecLogSnapshot::BoundariesToString() const {
diff --git a/ydb/core/blobstorage/vdisk/synclog/blobstorage_synclogneighbors.cpp b/ydb/core/blobstorage/vdisk/synclog/blobstorage_synclogneighbors.cpp
index b9cf5c78ee..72ae5e98a4 100644
--- a/ydb/core/blobstorage/vdisk/synclog/blobstorage_synclogneighbors.cpp
+++ b/ydb/core/blobstorage/vdisk/synclog/blobstorage_synclogneighbors.cpp
@@ -22,9 +22,9 @@ namespace NKikimr {
             {}
 
             void operator() (IOutputStream &str, TNeighbors::TConstIterator it) {
-                HTML(str) {
-                    SMALL() {
-                        STRONG() {
+                HTML(str) { 
+                    SMALL() { 
+                        STRONG() { 
                             // output VDiskID
                             auto vd = GInfo.GetVDiskId(it->VDiskIdShort);
                             str << "VDiskId: " << vd.ToStringWOGeneration() << "<br>";
@@ -38,24 +38,24 @@ namespace NKikimr {
                             } else {
                                 str << "Node: " << info->Host << ":" << info->Port << "<br>";
                             }
-                        }
-                    }
+                        } 
+                    } 
 
                     if (it->Myself) {
-                        PARA_CLASS("text-info") {str << "Self";}
+                        PARA_CLASS("text-info") {str << "Self";} 
                     } else {
-                        SMALL() {
-                            SMALL() {
+                        SMALL() { 
+                            SMALL() { 
                                 str << "SyncedLsn: " << it->Get().SyncedLsn << "<br>";
                                 ui64 lockedLsn = it->Get().LockedLsn;
                                 if (lockedLsn == ui64(-1))
                                     str << "LockedLsn: no<br>";
                                 else
                                     str << "LockedLsn: " << lockedLsn << "<br>";
-                            }
-                        }
+                            } 
+                        } 
                     }
-                }
+                } 
             }
         };
 
diff --git a/ydb/core/driver_lib/run/config.h b/ydb/core/driver_lib/run/config.h
index faf1797413..2792993f0a 100644
--- a/ydb/core/driver_lib/run/config.h
+++ b/ydb/core/driver_lib/run/config.h
@@ -29,7 +29,7 @@ union TBasicKikimrServicesMask {
         bool EnableTabletCountersAggregator:1;
         bool EnableRestartsCountPublisher:1;
         bool EnableBootstrapper:1;
-        bool EnableMediatorTimeCastProxy:1;
+        bool EnableMediatorTimeCastProxy:1; 
         bool EnableTxProxy:1;
         bool EnableMiniKQLCompileService:1;
         bool EnableMessageBusServices:1;
diff --git a/ydb/core/driver_lib/run/factories.h b/ydb/core/driver_lib/run/factories.h
index 41a45b44e0..3457f688a7 100644
--- a/ydb/core/driver_lib/run/factories.h
+++ b/ydb/core/driver_lib/run/factories.h
@@ -16,15 +16,15 @@
 
 #include <ydb/library/yql/providers/pq/cm_client/interface/client.h>
 
-#include <library/cpp/actors/core/actorsystem.h>
-
+#include <library/cpp/actors/core/actorsystem.h> 
+ 
 #include <ydb/library/security/ydb_credentials_provider_factory.h>
 
-#include <functional>
-#include <unordered_map>
-#include <unordered_set>
-#include <vector>
-
+#include <functional> 
+#include <unordered_map> 
+#include <unordered_set> 
+#include <vector> 
+ 
 namespace NKikimr {
 
 // A way to parameterize YDB binary, we do it via a set of factories
@@ -47,8 +47,8 @@ struct TModuleFactories {
 
     std::function<IActor*(const NYq::NConfig::TAuditConfig& auditConfig)> YqAuditServiceFactory;
     NKikimr::TYdbCredentialsProviderFactory YdbCredentialProviderFactory;
-    // Factory for grpc services
-    TGrpcServiceFactory GrpcServiceFactory;
+    // Factory for grpc services 
+    TGrpcServiceFactory GrpcServiceFactory; 
 
     std::shared_ptr<NPQ::IPersQueueMirrorReaderFactory> PersQueueMirrorReaderFactory;
     /// Factory for pdisk's aio engines
diff --git a/ydb/core/driver_lib/run/kikimr_services_initializers.cpp b/ydb/core/driver_lib/run/kikimr_services_initializers.cpp
index 819c1478d1..1853bfe4e0 100644
--- a/ydb/core/driver_lib/run/kikimr_services_initializers.cpp
+++ b/ydb/core/driver_lib/run/kikimr_services_initializers.cpp
@@ -149,12 +149,12 @@
 #include <library/cpp/actors/core/events.h>
 #include <library/cpp/actors/core/executor_pool_basic.h>
 #include <library/cpp/actors/core/executor_pool_io.h>
-#include <library/cpp/actors/core/executor_pool_united.h>
+#include <library/cpp/actors/core/executor_pool_united.h> 
 #include <library/cpp/actors/core/log.h>
 #include <library/cpp/actors/core/log_settings.h>
 #include <library/cpp/actors/core/mon.h>
 #include <library/cpp/actors/core/mon_stats.h>
-#include <library/cpp/actors/core/probes.h>
+#include <library/cpp/actors/core/probes.h> 
 #include <library/cpp/actors/core/process_stats.h>
 #include <library/cpp/actors/core/scheduler_basic.h>
 #include <library/cpp/actors/core/io_dispatcher.h>
@@ -169,7 +169,7 @@
 #include <library/cpp/actors/interconnect/load.h>
 #include <library/cpp/actors/interconnect/poller_actor.h>
 #include <library/cpp/actors/interconnect/poller_tcp.h>
-#include <library/cpp/actors/util/affinity.h>
+#include <library/cpp/actors/util/affinity.h> 
 
 #include <library/cpp/logger/global/global.h>
 #include <library/cpp/logger/log.h>
@@ -178,8 +178,8 @@
 
 #include <library/cpp/svnversion/svnversion.h>
 
-#include <library/cpp/lwtrace/mon/mon_lwtrace.h>
-
+#include <library/cpp/lwtrace/mon/mon_lwtrace.h> 
+ 
 #include <util/digest/city.h>
 #include <util/generic/algorithm.h>
 #include <util/generic/size_literals.h>
@@ -200,148 +200,148 @@ IKikimrServicesInitializer::IKikimrServicesInitializer(const TKikimrRunConfig& r
 
 // TBasicServicesInitializer
 
-template <class TConfig>
-static TCpuMask ParseAffinity(const TConfig& cfg) {
-    TCpuMask result;
-    if (cfg.GetCpuList()) {
-        result = TCpuMask(cfg.GetCpuList());
-    } else if (cfg.GetX().size() > 0) {
-        result = TCpuMask(cfg.GetX().begin(), cfg.GetX().size());
-    } else { // use all processors
-        TAffinity available;
-        available.Current();
-        result = available;
-    }
-    if (cfg.GetExcludeCpuList()) {
-        result = result - TCpuMask(cfg.GetExcludeCpuList());
-    }
-    return result;
-}
-
-void AddExecutorPool(
-    TCpuManagerConfig& cpuManager,
-    const NKikimrConfig::TActorSystemConfig::TExecutor& poolConfig,
-    const NKikimrConfig::TActorSystemConfig& systemConfig,
-    ui32 poolId,
-    ui32 maxActivityType,
-    ui32& unitedThreads)
+template <class TConfig> 
+static TCpuMask ParseAffinity(const TConfig& cfg) { 
+    TCpuMask result; 
+    if (cfg.GetCpuList()) { 
+        result = TCpuMask(cfg.GetCpuList()); 
+    } else if (cfg.GetX().size() > 0) { 
+        result = TCpuMask(cfg.GetX().begin(), cfg.GetX().size()); 
+    } else { // use all processors 
+        TAffinity available; 
+        available.Current(); 
+        result = available; 
+    } 
+    if (cfg.GetExcludeCpuList()) { 
+        result = result - TCpuMask(cfg.GetExcludeCpuList()); 
+    } 
+    return result; 
+} 
+ 
+void AddExecutorPool( 
+    TCpuManagerConfig& cpuManager, 
+    const NKikimrConfig::TActorSystemConfig::TExecutor& poolConfig, 
+    const NKikimrConfig::TActorSystemConfig& systemConfig, 
+    ui32 poolId, 
+    ui32 maxActivityType, 
+    ui32& unitedThreads) 
 {
     switch (poolConfig.GetType()) {
     case NKikimrConfig::TActorSystemConfig::TExecutor::BASIC: {
-        TBasicExecutorPoolConfig basic;
-        basic.PoolId = poolId;
-        basic.PoolName = poolConfig.GetName();
-        basic.Threads = poolConfig.GetThreads();
-        basic.SpinThreshold = poolConfig.GetSpinThreshold();
-        basic.Affinity = ParseAffinity(poolConfig.GetAffinity());
-        basic.RealtimePriority = poolConfig.GetRealtimePriority();
-        basic.MaxActivityType = maxActivityType;
+        TBasicExecutorPoolConfig basic; 
+        basic.PoolId = poolId; 
+        basic.PoolName = poolConfig.GetName(); 
+        basic.Threads = poolConfig.GetThreads(); 
+        basic.SpinThreshold = poolConfig.GetSpinThreshold(); 
+        basic.Affinity = ParseAffinity(poolConfig.GetAffinity()); 
+        basic.RealtimePriority = poolConfig.GetRealtimePriority(); 
+        basic.MaxActivityType = maxActivityType; 
         if (poolConfig.HasTimePerMailboxMicroSecs()) {
-            basic.TimePerMailbox = TDuration::MicroSeconds(poolConfig.GetTimePerMailboxMicroSecs());
+            basic.TimePerMailbox = TDuration::MicroSeconds(poolConfig.GetTimePerMailboxMicroSecs()); 
         } else if (systemConfig.HasTimePerMailboxMicroSecs()) {
-            basic.TimePerMailbox = TDuration::MicroSeconds(systemConfig.GetTimePerMailboxMicroSecs());
+            basic.TimePerMailbox = TDuration::MicroSeconds(systemConfig.GetTimePerMailboxMicroSecs()); 
         }
         if (poolConfig.HasEventsPerMailbox()) {
-            basic.EventsPerMailbox = poolConfig.GetEventsPerMailbox();
+            basic.EventsPerMailbox = poolConfig.GetEventsPerMailbox(); 
         } else if (systemConfig.HasEventsPerMailbox()) {
-            basic.EventsPerMailbox = systemConfig.GetEventsPerMailbox();
+            basic.EventsPerMailbox = systemConfig.GetEventsPerMailbox(); 
         }
-        Y_VERIFY(basic.EventsPerMailbox != 0);
-        cpuManager.Basic.emplace_back(std::move(basic));
-        break;
-    }
-    case NKikimrConfig::TActorSystemConfig::TExecutor::IO: {
-        TIOExecutorPoolConfig io;
-        io.PoolId = poolId;
-        io.PoolName = poolConfig.GetName();
-        io.Threads = poolConfig.GetThreads();
-        io.Affinity = ParseAffinity(poolConfig.GetAffinity());
-        io.MaxActivityType = maxActivityType;
-        cpuManager.IO.emplace_back(std::move(io));
-        break;
-    }
-    case NKikimrConfig::TActorSystemConfig::TExecutor::UNITED: {
-        TUnitedExecutorPoolConfig united;
-        united.PoolId = poolId;
-        united.PoolName = poolConfig.GetName();
-        united.Concurrency = poolConfig.GetConcurrency();
-        united.Weight = (NActors::TPoolWeight)poolConfig.GetWeight();
-        united.Allowed = ParseAffinity(poolConfig.GetAffinity());
-        united.MaxActivityType = maxActivityType;
-        if (poolConfig.HasTimePerMailboxMicroSecs()) {
-            united.TimePerMailbox = TDuration::MicroSeconds(poolConfig.GetTimePerMailboxMicroSecs());
-        } else if (systemConfig.HasTimePerMailboxMicroSecs()) {
-            united.TimePerMailbox = TDuration::MicroSeconds(systemConfig.GetTimePerMailboxMicroSecs());
-        }
-        if (poolConfig.HasEventsPerMailbox()) {
-            united.EventsPerMailbox = poolConfig.GetEventsPerMailbox();
-        } else if (systemConfig.HasEventsPerMailbox()) {
-            united.EventsPerMailbox = systemConfig.GetEventsPerMailbox();
-        }
-        Y_VERIFY(united.EventsPerMailbox != 0);
-        united.Balancing.Cpus = poolConfig.GetThreads();
-        united.Balancing.MinCpus = poolConfig.GetMinThreads();
-        united.Balancing.MaxCpus = poolConfig.GetMaxThreads();
-        united.Balancing.Priority = poolConfig.GetBalancingPriority();
-        united.Balancing.ToleratedLatencyUs = poolConfig.GetToleratedLatencyUs();
-        unitedThreads += united.Balancing.Cpus;
-        cpuManager.United.emplace_back(std::move(united));
-        break;
-    }
+        Y_VERIFY(basic.EventsPerMailbox != 0); 
+        cpuManager.Basic.emplace_back(std::move(basic)); 
+        break; 
+    }
+    case NKikimrConfig::TActorSystemConfig::TExecutor::IO: { 
+        TIOExecutorPoolConfig io; 
+        io.PoolId = poolId; 
+        io.PoolName = poolConfig.GetName(); 
+        io.Threads = poolConfig.GetThreads(); 
+        io.Affinity = ParseAffinity(poolConfig.GetAffinity()); 
+        io.MaxActivityType = maxActivityType; 
+        cpuManager.IO.emplace_back(std::move(io)); 
+        break; 
+    } 
+    case NKikimrConfig::TActorSystemConfig::TExecutor::UNITED: { 
+        TUnitedExecutorPoolConfig united; 
+        united.PoolId = poolId; 
+        united.PoolName = poolConfig.GetName(); 
+        united.Concurrency = poolConfig.GetConcurrency(); 
+        united.Weight = (NActors::TPoolWeight)poolConfig.GetWeight(); 
+        united.Allowed = ParseAffinity(poolConfig.GetAffinity()); 
+        united.MaxActivityType = maxActivityType; 
+        if (poolConfig.HasTimePerMailboxMicroSecs()) { 
+            united.TimePerMailbox = TDuration::MicroSeconds(poolConfig.GetTimePerMailboxMicroSecs()); 
+        } else if (systemConfig.HasTimePerMailboxMicroSecs()) { 
+            united.TimePerMailbox = TDuration::MicroSeconds(systemConfig.GetTimePerMailboxMicroSecs()); 
+        } 
+        if (poolConfig.HasEventsPerMailbox()) { 
+            united.EventsPerMailbox = poolConfig.GetEventsPerMailbox(); 
+        } else if (systemConfig.HasEventsPerMailbox()) { 
+            united.EventsPerMailbox = systemConfig.GetEventsPerMailbox(); 
+        } 
+        Y_VERIFY(united.EventsPerMailbox != 0); 
+        united.Balancing.Cpus = poolConfig.GetThreads(); 
+        united.Balancing.MinCpus = poolConfig.GetMinThreads(); 
+        united.Balancing.MaxCpus = poolConfig.GetMaxThreads(); 
+        united.Balancing.Priority = poolConfig.GetBalancingPriority(); 
+        united.Balancing.ToleratedLatencyUs = poolConfig.GetToleratedLatencyUs(); 
+        unitedThreads += united.Balancing.Cpus; 
+        cpuManager.United.emplace_back(std::move(united)); 
+        break; 
+    } 
     default:
         Y_FAIL();
     }
 }
 
-static TUnitedWorkersConfig CreateUnitedWorkersConfig(const NKikimrConfig::TActorSystemConfig::TUnitedWorkers& config, ui32 unitedThreads) {
-    TUnitedWorkersConfig result;
-    result.CpuCount = unitedThreads;
-    if (config.HasCpuCount()) {
-        result.CpuCount = config.GetCpuCount();
-    }
-    if (config.HasSpinThresholdUs()) {
-        result.SpinThresholdUs = config.GetSpinThresholdUs();
-    }
-    if (config.HasPoolLimitUs()) {
-        result.PoolLimitUs = config.GetPoolLimitUs();
-    }
-    if (config.HasEventLimitUs()) {
-        result.EventLimitUs = config.GetEventLimitUs();
-    }
-    if (config.HasLimitPrecisionUs()) {
-        result.LimitPrecisionUs = config.GetLimitPrecisionUs();
-    }
-    if (config.HasFastWorkerPriority()) {
-        result.FastWorkerPriority = config.GetFastWorkerPriority();
-    }
-    if (config.HasIdleWorkerPriority()) {
-        result.IdleWorkerPriority = config.GetIdleWorkerPriority();
-    }
-    if (config.HasAffinity()) {
-        result.Allowed = ParseAffinity(config.GetAffinity());
-    }
-    if (config.HasNoRealtime()) {
-        result.NoRealtime = config.GetNoRealtime();
-    }
-    if (config.HasNoAffinity()) {
-        result.NoAffinity = config.GetNoAffinity();
-    }
-    if (config.HasBalancerPeriodUs()) {
-        result.Balancer.PeriodUs = config.GetBalancerPeriodUs();
-    }
-    return result;
-}
-
-static TCpuManagerConfig CreateCpuManagerConfig(const NKikimrConfig::TActorSystemConfig& config, ui32 maxActivityType) {
-    TCpuManagerConfig cpuManager;
-    ui32 unitedThreads = 0;
-    for (int poolId = 0; poolId < config.GetExecutor().size(); poolId++) {
-        AddExecutorPool(cpuManager, config.GetExecutor(poolId), config, poolId, maxActivityType, unitedThreads);
-    }
-    cpuManager.UnitedWorkers = CreateUnitedWorkersConfig(config.GetUnitedWorkers(), unitedThreads);
-    return cpuManager;
-}
-
+static TUnitedWorkersConfig CreateUnitedWorkersConfig(const NKikimrConfig::TActorSystemConfig::TUnitedWorkers& config, ui32 unitedThreads) { 
+    TUnitedWorkersConfig result; 
+    result.CpuCount = unitedThreads; 
+    if (config.HasCpuCount()) { 
+        result.CpuCount = config.GetCpuCount(); 
+    } 
+    if (config.HasSpinThresholdUs()) { 
+        result.SpinThresholdUs = config.GetSpinThresholdUs(); 
+    } 
+    if (config.HasPoolLimitUs()) { 
+        result.PoolLimitUs = config.GetPoolLimitUs(); 
+    } 
+    if (config.HasEventLimitUs()) { 
+        result.EventLimitUs = config.GetEventLimitUs(); 
+    } 
+    if (config.HasLimitPrecisionUs()) { 
+        result.LimitPrecisionUs = config.GetLimitPrecisionUs(); 
+    } 
+    if (config.HasFastWorkerPriority()) { 
+        result.FastWorkerPriority = config.GetFastWorkerPriority(); 
+    } 
+    if (config.HasIdleWorkerPriority()) { 
+        result.IdleWorkerPriority = config.GetIdleWorkerPriority(); 
+    } 
+    if (config.HasAffinity()) { 
+        result.Allowed = ParseAffinity(config.GetAffinity()); 
+    } 
+    if (config.HasNoRealtime()) { 
+        result.NoRealtime = config.GetNoRealtime(); 
+    } 
+    if (config.HasNoAffinity()) { 
+        result.NoAffinity = config.GetNoAffinity(); 
+    } 
+    if (config.HasBalancerPeriodUs()) { 
+        result.Balancer.PeriodUs = config.GetBalancerPeriodUs(); 
+    } 
+    return result; 
+} 
+ 
+static TCpuManagerConfig CreateCpuManagerConfig(const NKikimrConfig::TActorSystemConfig& config, ui32 maxActivityType) { 
+    TCpuManagerConfig cpuManager; 
+    ui32 unitedThreads = 0; 
+    for (int poolId = 0; poolId < config.GetExecutor().size(); poolId++) { 
+        AddExecutorPool(cpuManager, config.GetExecutor(poolId), config, poolId, maxActivityType, unitedThreads); 
+    } 
+    cpuManager.UnitedWorkers = CreateUnitedWorkersConfig(config.GetUnitedWorkers(), unitedThreads); 
+    return cpuManager; 
+} 
+ 
 static TSchedulerConfig CreateSchedulerConfig(const NKikimrConfig::TActorSystemConfig::TScheduler &config) {
     const ui64 resolution = config.HasResolution() ? config.GetResolution() : 1024;
     Y_VERIFY_DEBUG((resolution & (resolution - 1)) == 0);  // resolution must be power of 2
@@ -517,24 +517,24 @@ void TBasicServicesInitializer::InitializeServices(NActors::TActorSystemSetup* s
 
     setup->NodeId = NodeId;
     setup->MaxActivityType = GetActivityTypeCount();
-    setup->CpuManager = CreateCpuManagerConfig(systemConfig, setup->MaxActivityType);
-    for (ui32 poolId = 0; poolId != setup->GetExecutorsCount(); ++poolId) {
+    setup->CpuManager = CreateCpuManagerConfig(systemConfig, setup->MaxActivityType); 
+    for (ui32 poolId = 0; poolId != setup->GetExecutorsCount(); ++poolId) { 
         const auto &execConfig = systemConfig.GetExecutor(poolId);
-        if (execConfig.HasInjectMadSquirrels()) {
-            for (ui32 i = execConfig.GetInjectMadSquirrels(); i > 0; --i) {
+        if (execConfig.HasInjectMadSquirrels()) { 
+            for (ui32 i = execConfig.GetInjectMadSquirrels(); i > 0; --i) { 
                 setup->LocalServices.push_back(std::pair<TActorId, TActorSetupCmd>(TActorId(), TActorSetupCmd(CreateMadSquirrel(), TMailboxType::HTSwap, poolId)));
-            }
-        }
+            } 
+        } 
     }
-
+ 
     auto schedulerConfig = CreateSchedulerConfig(systemConfig.GetScheduler());
     schedulerConfig.MonCounters = GetServiceCounters(counters, "utils");
     setup->Scheduler.Reset(CreateSchedulerThread(schedulerConfig));
     setup->LocalServices.emplace_back(MakeIoDispatcherActorId(), TActorSetupCmd(CreateIoDispatcherActor(
         schedulerConfig.MonCounters->GetSubgroup("subsystem", "io_dispatcher")), TMailboxType::HTSwap, systemPoolId));
 
-    NLwTraceMonPage::DashboardRegistry().Register(NActors::LWTraceDashboards(setup));
-
+    NLwTraceMonPage::DashboardRegistry().Register(NActors::LWTraceDashboards(setup)); 
+ 
     if (Config.HasNameserviceConfig()) {
         const auto& nsConfig = Config.GetNameserviceConfig();
         const TActorId resolverId = NDnsResolver::MakeDnsResolverActorId();
@@ -1374,13 +1374,13 @@ void TTabletsInitializer::InitializeServices(
     }
 }
 
-// TMediatorTimeCastProxyInitializer
+// TMediatorTimeCastProxyInitializer 
 
-TMediatorTimeCastProxyInitializer::TMediatorTimeCastProxyInitializer(const TKikimrRunConfig& runConfig)
+TMediatorTimeCastProxyInitializer::TMediatorTimeCastProxyInitializer(const TKikimrRunConfig& runConfig) 
     : IKikimrServicesInitializer(runConfig) {
 }
 
-void TMediatorTimeCastProxyInitializer::InitializeServices(
+void TMediatorTimeCastProxyInitializer::InitializeServices( 
         NActors::TActorSystemSetup* setup,
         const NKikimr::TAppData* appData) {
     setup->LocalServices.push_back(std::pair<TActorId, TActorSetupCmd>(
@@ -1684,8 +1684,8 @@ void TSelfPingInitializer::InitializeServices(
 
     const auto counters = GetServiceCounters(appData->Counters, "utils");
 
-    for (size_t poolId = 0; poolId < setup->GetExecutorsCount(); ++poolId) {
-        const auto& poolName = setup->GetPoolName(poolId);
+    for (size_t poolId = 0; poolId < setup->GetExecutorsCount(); ++poolId) { 
+        const auto& poolName = setup->GetPoolName(poolId); 
         auto poolGroup = counters->GetSubgroup("execpool", poolName);
         auto counter = poolGroup->GetCounter("SelfPingMaxUs", false);
         auto cpuTimeCounter = poolGroup->GetCounter("CpuMatBenchNs", false);
@@ -2172,10 +2172,10 @@ TSysViewServiceInitializer::TSysViewServiceInitializer(const TKikimrRunConfig& r
 
 void TSysViewServiceInitializer::InitializeServices(NActors::TActorSystemSetup* setup, const NKikimr::TAppData* appData) {
     NSysView::TExtCountersConfig config;
-    for (ui32 i = 0; i < setup->GetExecutorsCount(); ++i) {
+    for (ui32 i = 0; i < setup->GetExecutorsCount(); ++i) { 
         config.Pools.push_back(NSysView::TExtCountersConfig::TPool{
-            setup->GetPoolName(i),
-            setup->GetThreads(i)});
+            setup->GetPoolName(i), 
+            setup->GetThreads(i)}); 
     }
 
     // external counters only for dynamic nodes
diff --git a/ydb/core/driver_lib/run/kikimr_services_initializers.h b/ydb/core/driver_lib/run/kikimr_services_initializers.h
index 407ce1bb7b..ae7477a227 100644
--- a/ydb/core/driver_lib/run/kikimr_services_initializers.h
+++ b/ydb/core/driver_lib/run/kikimr_services_initializers.h
@@ -197,7 +197,7 @@ public:
 
 class TMediatorTimeCastProxyInitializer : public IKikimrServicesInitializer {
 public:
-    TMediatorTimeCastProxyInitializer(const TKikimrRunConfig& runConfig);
+    TMediatorTimeCastProxyInitializer(const TKikimrRunConfig& runConfig); 
 
     void InitializeServices(NActors::TActorSystemSetup *setup, const NKikimr::TAppData *appData) override;
 };
diff --git a/ydb/core/driver_lib/run/run.cpp b/ydb/core/driver_lib/run/run.cpp
index a4f74aa4e0..f566c4829a 100644
--- a/ydb/core/driver_lib/run/run.cpp
+++ b/ydb/core/driver_lib/run/run.cpp
@@ -540,33 +540,33 @@ void TKikimrRunner::InitializeGRpc(const TKikimrRunConfig& runConfig) {
         bool hasAuth = services.empty();
         names["auth"] = &hasAuth;
 
-        std::unordered_set<TString> enabled;
+        std::unordered_set<TString> enabled; 
         for (const auto& name : services) {
-            enabled.insert(name);
-        }
-        for (const auto& name : grpcConfig.GetServicesEnabled()) {
-            enabled.insert(name);
-        }
-
-        std::unordered_set<TString> disabled;
-        for (const auto& name : grpcConfig.GetServicesDisabled()) {
-            disabled.insert(name);
-        }
-
-        for (const auto& name : enabled) {
+            enabled.insert(name); 
+        }
+        for (const auto& name : grpcConfig.GetServicesEnabled()) { 
+            enabled.insert(name); 
+        } 
+
+        std::unordered_set<TString> disabled; 
+        for (const auto& name : grpcConfig.GetServicesDisabled()) { 
+            disabled.insert(name); 
+        } 
+ 
+        for (const auto& name : enabled) { 
             auto itName = names.find(name);
             if (itName != names.end()) {
                 *(itName->second) = true;
-            } else if (!ModuleFactories || !ModuleFactories->GrpcServiceFactory.Has(name)) {
+            } else if (!ModuleFactories || !ModuleFactories->GrpcServiceFactory.Has(name)) { 
                 Cerr << "Unknown grpc service \"" << name << "\" was not enabled!" << Endl;
             }
         }
 
-        for (const auto& name : disabled) {
+        for (const auto& name : disabled) { 
             auto itName = names.find(name);
             if (itName != names.end()) {
                 *(itName->second) = false;
-            } else if (!ModuleFactories || !ModuleFactories->GrpcServiceFactory.Has(name)) {
+            } else if (!ModuleFactories || !ModuleFactories->GrpcServiceFactory.Has(name)) { 
                 Cerr << "Unknown grpc service \"" << name << "\" was not disabled!" << Endl;
             }
         }
@@ -593,14 +593,14 @@ void TKikimrRunner::InitializeGRpc(const TKikimrRunConfig& runConfig) {
             hasImport = true;
         }
 
-        for (const auto& [name, isEnabled] : names) {
-            if (*isEnabled) {
-                enabled.insert(name);
-            } else {
-                disabled.insert(name);
-            }
-        }
-
+        for (const auto& [name, isEnabled] : names) { 
+            if (*isEnabled) { 
+                enabled.insert(name); 
+            } else { 
+                disabled.insert(name); 
+            } 
+        } 
+ 
         const auto grpcRequestProxyId = NGRpcService::CreateGRpcRequestProxyId();
 
         if (hasLegacy) {
@@ -697,8 +697,8 @@ void TKikimrRunner::InitializeGRpc(const TKikimrRunConfig& runConfig) {
             server.AddService(new NGRpcService::TGRpcDiscoveryService(ActorSystem.Get(), Counters, grpcRequestProxyId));
         }
 
-        if (hasRateLimiter) {
-            server.AddService(new NQuoter::TRateLimiterGRpcService(ActorSystem.Get(), Counters, grpcRequestProxyId));
+        if (hasRateLimiter) { 
+            server.AddService(new NQuoter::TRateLimiterGRpcService(ActorSystem.Get(), Counters, grpcRequestProxyId)); 
         }
 
         if (hasMonitoring) {
@@ -721,12 +721,12 @@ void TKikimrRunner::InitializeGRpc(const TKikimrRunConfig& runConfig) {
         if (hasLogStore) {
             server.AddService(new NGRpcService::TGRpcYdbLogStoreService(ActorSystem.Get(), Counters, grpcRequestProxyId));
         }
-
-        if (ModuleFactories) {
-            for (const auto& service : ModuleFactories->GrpcServiceFactory.Create(enabled, disabled, ActorSystem.Get(), Counters, grpcRequestProxyId)) {
-                server.AddService(service);
-            }
-        }
+ 
+        if (ModuleFactories) { 
+            for (const auto& service : ModuleFactories->GrpcServiceFactory.Create(enabled, disabled, ActorSystem.Get(), Counters, grpcRequestProxyId)) { 
+                server.AddService(service); 
+            } 
+        } 
     };
 
     if (appConfig.HasGRpcConfig() && appConfig.GetGRpcConfig().GetStartGRpcProxy()) {
@@ -1199,8 +1199,8 @@ TIntrusivePtr<TServiceInitializersList> TKikimrRunner::CreateServiceInitializers
     if (serviceMask.EnableBootstrapper) {
         sil->AddServiceInitializer(new TBootstrapperInitializer(runConfig));
     }
-    if (serviceMask.EnableMediatorTimeCastProxy) {
-        sil->AddServiceInitializer(new TMediatorTimeCastProxyInitializer(runConfig));
+    if (serviceMask.EnableMediatorTimeCastProxy) { 
+        sil->AddServiceInitializer(new TMediatorTimeCastProxyInitializer(runConfig)); 
     }
     if (serviceMask.EnableTxProxy) {
         sil->AddServiceInitializer(new TTxProxyInitializer(runConfig));
diff --git a/ydb/core/engine/minikql/minikql_engine_host.cpp b/ydb/core/engine/minikql/minikql_engine_host.cpp
index 36c35f32cc..a3aede0501 100644
--- a/ydb/core/engine/minikql/minikql_engine_host.cpp
+++ b/ydb/core/engine/minikql/minikql_engine_host.cpp
@@ -1,5 +1,5 @@
-#include "minikql_engine_host.h"
-
+#include "minikql_engine_host.h" 
+ 
 #include <ydb/core/tablet_flat/flat_dbase_sz_env.h>
 #include <ydb/core/tablet_flat/flat_row_state.h>
 #include <ydb/core/tablet_flat/flat_table_stats.h>
@@ -9,9 +9,9 @@
 
 #include <library/cpp/containers/stack_vector/stack_vec.h>
 
-namespace NKikimr {
+namespace NKikimr { 
 namespace NMiniKQL {
-
+ 
 using TScheme = NTable::TScheme;
 
 void ConvertTableKeys(const TScheme& scheme, const TScheme::TTableInfo* tableInfo,
@@ -36,89 +36,89 @@ void ConvertTableKeys(const TScheme& scheme, const TScheme::TTableInfo* tableInf
 }
 
 TEngineHost::TEngineHost(NTable::TDatabase& db, TEngineHostCounters& counters, const TEngineHostSettings& settings)
-    : Db(db)
+    : Db(db) 
     , Scheme(db.GetScheme())
     , Settings(settings)
     , Counters(counters)
-{}
-
-ui64 TEngineHost::GetShardId() const {
+{} 
+ 
+ui64 TEngineHost::GetShardId() const { 
     return Settings.ShardId;
-}
-
+} 
+ 
 const TScheme::TTableInfo* TEngineHost::GetTableInfo(const TTableId& tableId) const {
     return Scheme.GetTableInfo(LocalTableId(tableId));
 }
 
-bool TEngineHost::IsReadonly() const {
+bool TEngineHost::IsReadonly() const { 
     return Settings.IsReadonly;
-}
-
-
-bool TEngineHost::IsValidKey(TKeyDesc& key, std::pair<ui64, ui64>& maxSnapshotTime) const {
+} 
+ 
+ 
+bool TEngineHost::IsValidKey(TKeyDesc& key, std::pair<ui64, ui64>& maxSnapshotTime) const { 
     Y_UNUSED(maxSnapshotTime);
 
-    auto* tableInfo = Scheme.GetTableInfo(LocalTableId(key.TableId));
-
-#define EH_VALIDATE(cond, err_status) \
-    do { \
-        if (!(cond)) { \
-            key.Status = TKeyDesc::EStatus::err_status; \
-            return false; \
-        } \
-    } while(false) \
-    /**/
-
-    EH_VALIDATE(tableInfo, NotExists); // Table does not exist
-    EH_VALIDATE(key.KeyColumnTypes.size() <= tableInfo->KeyColumns.size(), TypeCheckFailed);
-
-    // Specified keys types should be valid for any operation
-    for (size_t keyIdx = 0; keyIdx < key.KeyColumnTypes.size(); keyIdx++) {
-        ui32 keyCol = tableInfo->KeyColumns[keyIdx];
-        NScheme::TTypeId vtype = Scheme.GetColumnInfo(tableInfo, keyCol)->PType;
-        EH_VALIDATE(key.KeyColumnTypes[keyIdx] == vtype, TypeCheckFailed);
-    }
-
-    if (key.RowOperation == TKeyDesc::ERowOperation::Read) {
+    auto* tableInfo = Scheme.GetTableInfo(LocalTableId(key.TableId)); 
+ 
+#define EH_VALIDATE(cond, err_status) \ 
+    do { \ 
+        if (!(cond)) { \ 
+            key.Status = TKeyDesc::EStatus::err_status; \ 
+            return false; \ 
+        } \ 
+    } while(false) \ 
+    /**/ 
+ 
+    EH_VALIDATE(tableInfo, NotExists); // Table does not exist 
+    EH_VALIDATE(key.KeyColumnTypes.size() <= tableInfo->KeyColumns.size(), TypeCheckFailed); 
+ 
+    // Specified keys types should be valid for any operation 
+    for (size_t keyIdx = 0; keyIdx < key.KeyColumnTypes.size(); keyIdx++) { 
+        ui32 keyCol = tableInfo->KeyColumns[keyIdx]; 
+        NScheme::TTypeId vtype = Scheme.GetColumnInfo(tableInfo, keyCol)->PType; 
+        EH_VALIDATE(key.KeyColumnTypes[keyIdx] == vtype, TypeCheckFailed); 
+    } 
+ 
+    if (key.RowOperation == TKeyDesc::ERowOperation::Read) { 
         if (key.Range.Point) {
             EH_VALIDATE(key.KeyColumnTypes.size() == tableInfo->KeyColumns.size(), TypeCheckFailed);
         } else {
             EH_VALIDATE(key.KeyColumnTypes.size() <= tableInfo->KeyColumns.size(), TypeCheckFailed);
         }
-
-        for (size_t i = 0; i < key.Columns.size(); i++) {
-            const TKeyDesc::TColumnOp& cop = key.Columns[i];
+ 
+        for (size_t i = 0; i < key.Columns.size(); i++) { 
+            const TKeyDesc::TColumnOp& cop = key.Columns[i]; 
             if (IsSystemColumn(cop.Column)) {
                 continue;
             }
-            auto* cinfo = Scheme.GetColumnInfo(tableInfo, cop.Column);
-            EH_VALIDATE(cinfo, TypeCheckFailed); // Unknown column
-            NScheme::TTypeId vtype = cinfo->PType;
-            EH_VALIDATE(cop.ExpectedType == vtype, TypeCheckFailed);
-            EH_VALIDATE(cop.Operation == TKeyDesc::EColumnOperation::Read, OperationNotSupported);
-        }
-    } else if (key.RowOperation == TKeyDesc::ERowOperation::Update) {
-        EH_VALIDATE(key.KeyColumnTypes.size() == tableInfo->KeyColumns.size(), TypeCheckFailed); // Key must be full for updates
-        for (size_t i = 0; i < key.Columns.size(); i++) {
-            const TKeyDesc::TColumnOp& cop = key.Columns[i];
-            auto* cinfo = Scheme.GetColumnInfo(tableInfo, cop.Column);
-            EH_VALIDATE(cinfo, TypeCheckFailed); // Unknown column
-            NScheme::TTypeId vtype = cinfo->PType;
+            auto* cinfo = Scheme.GetColumnInfo(tableInfo, cop.Column); 
+            EH_VALIDATE(cinfo, TypeCheckFailed); // Unknown column 
+            NScheme::TTypeId vtype = cinfo->PType; 
+            EH_VALIDATE(cop.ExpectedType == vtype, TypeCheckFailed); 
+            EH_VALIDATE(cop.Operation == TKeyDesc::EColumnOperation::Read, OperationNotSupported); 
+        } 
+    } else if (key.RowOperation == TKeyDesc::ERowOperation::Update) { 
+        EH_VALIDATE(key.KeyColumnTypes.size() == tableInfo->KeyColumns.size(), TypeCheckFailed); // Key must be full for updates 
+        for (size_t i = 0; i < key.Columns.size(); i++) { 
+            const TKeyDesc::TColumnOp& cop = key.Columns[i]; 
+            auto* cinfo = Scheme.GetColumnInfo(tableInfo, cop.Column); 
+            EH_VALIDATE(cinfo, TypeCheckFailed); // Unknown column 
+            NScheme::TTypeId vtype = cinfo->PType; 
             EH_VALIDATE(!cop.ExpectedType || cop.ExpectedType == vtype, TypeCheckFailed);
-            EH_VALIDATE(cop.Operation == TKeyDesc::EColumnOperation::Set, OperationNotSupported); // TODO[serxa]: support inplace operations in IsValidKey
-        }
-    } else if (key.RowOperation == TKeyDesc::ERowOperation::Erase) {
-        EH_VALIDATE(key.KeyColumnTypes.size() == tableInfo->KeyColumns.size(), TypeCheckFailed);
-    } else {
-        EH_VALIDATE(false, OperationNotSupported);
-    }
-
-#undef EH_VALIDATE
-
-    key.Status = TKeyDesc::EStatus::Ok;
-    return true;
-}
-
+            EH_VALIDATE(cop.Operation == TKeyDesc::EColumnOperation::Set, OperationNotSupported); // TODO[serxa]: support inplace operations in IsValidKey 
+        } 
+    } else if (key.RowOperation == TKeyDesc::ERowOperation::Erase) { 
+        EH_VALIDATE(key.KeyColumnTypes.size() == tableInfo->KeyColumns.size(), TypeCheckFailed); 
+    } else { 
+        EH_VALIDATE(false, OperationNotSupported); 
+    } 
+ 
+#undef EH_VALIDATE 
+ 
+    key.Status = TKeyDesc::EStatus::Ok; 
+    return true; 
+} 
+ 
 ui64 TEngineHost::CalculateReadSize(const TVector<const TKeyDesc*>& keys) const {
     NTable::TSizeEnv env;
 
@@ -127,8 +127,8 @@ ui64 TEngineHost::CalculateReadSize(const TVector<const TKeyDesc*>& keys) const
     }
 
     return env.GetSize();
-}
-
+} 
+ 
 void TEngineHost::DoCalculateReadSize(const TKeyDesc& key, NTable::TSizeEnv& env) const {
     if (TSysTables::IsSystemTable(key.TableId))
         return;
@@ -262,26 +262,26 @@ void TEngineHost::PinPages(const TVector<THolder<TKeyDesc>>& keys, ui64 pageFaul
 NUdf::TUnboxedValue TEngineHost::SelectRow(const TTableId& tableId, const TArrayRef<const TCell>& row,
     TStructLiteral* columnIds, TOptionalType* returnType, const TReadTarget& readTarget,
     const THolderFactory& holderFactory)
-{
-    // It is assumed that returnType has form:
-    //  optinal<struct<optional<data>,
-    //                 ...
-    //                 optional<data>>>
+{ 
+    // It is assumed that returnType has form: 
+    //  optinal<struct<optional<data>, 
+    //                 ... 
+    //                 optional<data>>> 
     // And that struct type has column tags stored inside it's member names as numbers
 
     Y_UNUSED(returnType);
     Y_UNUSED(readTarget);
-
-    ui64 localTid = LocalTableId(tableId);
+ 
+    ui64 localTid = LocalTableId(tableId); 
     Y_VERIFY(localTid, "table not exist");
-    const TScheme::TTableInfo* tableInfo = Scheme.GetTableInfo(localTid);
+    const TScheme::TTableInfo* tableInfo = Scheme.GetTableInfo(localTid); 
     TSmallVec<TRawTypeValue> key;
-    ConvertKeys(tableInfo, row, key);
-
+    ConvertKeys(tableInfo, row, key); 
+ 
     TSmallVec<NTable::TTag> tags;
     TSmallVec<NTable::TTag> systemColumnTags;
     AnalyzeRowType(columnIds, tags, systemColumnTags);
-
+ 
     TSmallVec<NScheme::TTypeId> cellTypes;
     cellTypes.reserve(tags.size());
     for (size_t i = 0; i < tags.size(); ++i)
@@ -290,8 +290,8 @@ NUdf::TUnboxedValue TEngineHost::SelectRow(const TTableId& tableId, const TArray
     NTable::TRowState dbRow;
 
     if (key.size() != Db.GetScheme().GetTableInfo(localTid)->KeyColumns.size())
-        throw TSchemeErrorTabletException();
-
+        throw TSchemeErrorTabletException(); 
+ 
     Counters.NSelectRow++;
     Settings.KeyAccessSampler->AddSample(tableId, row);
 
@@ -787,28 +787,28 @@ NUdf::TUnboxedValue TEngineHost::SelectRange(const TTableId& tableId, const TTab
     TStructLiteral* columnIds, TListLiteral* skipNullKeys, TStructType* returnType, const TReadTarget& readTarget,
     ui64 itemsLimit, ui64 bytesLimit, bool reverse, std::pair<const TListLiteral*, const TListLiteral*> forbidNullArgs,
     const THolderFactory& holderFactory)
-{
-    // It is assumed that returnType has form:
-    //  struct<
-    //          list< // named 'List'
-    //                struct<optional<data>,
-    //                       ...
-    //                       optional<data>>
-    //              >
-    //        , data // named 'Truncated' (boolean showing that itemsLimit or bytesLimit striked)
-    //        >
-    // And that struct type has column tags stored inside it's member names (ugly hack)
+{ 
+    // It is assumed that returnType has form: 
+    //  struct< 
+    //          list< // named 'List' 
+    //                struct<optional<data>, 
+    //                       ... 
+    //                       optional<data>> 
+    //              > 
+    //        , data // named 'Truncated' (boolean showing that itemsLimit or bytesLimit striked) 
+    //        > 
+    // And that struct type has column tags stored inside it's member names (ugly hack) 
 
     Y_UNUSED(readTarget);
-
+ 
     // TODO[serxa]: support for Point in SelectRange()
     Y_VERIFY(!range.Point, "point request in TEngineHost::SelectRange");
-
-    ui64 localTid = LocalTableId(tableId);
+ 
+    ui64 localTid = LocalTableId(tableId); 
     Y_VERIFY(localTid, "table not exist");
-
-    // Analyze resultType
-    TStructType* outerStructType = AS_TYPE(TStructType, returnType);
+ 
+    // Analyze resultType 
+    TStructType* outerStructType = AS_TYPE(TStructType, returnType); 
     Y_VERIFY_DEBUG(outerStructType->GetMembersCount() == 2,
         "Unexpected type structure of returnType in TEngineHost::SelectRange()");
     Y_VERIFY_DEBUG(outerStructType->GetMemberName(0) == "List",
@@ -819,7 +819,7 @@ NUdf::TUnboxedValue TEngineHost::SelectRange(const TTableId& tableId, const TTab
     TSmallVec<NTable::TTag> tags;
     TSmallVec<NTable::TTag> systemColumnTags;
     AnalyzeRowType(columnIds, tags, systemColumnTags);
-
+ 
     TSmallVec<bool> skipNullKeysFlags = CreateBoolVec(skipNullKeys);
     TSmallVec<bool> forbidNullArgsFrom = CreateBoolVec(forbidNullArgs.first);
     TSmallVec<bool> forbidNullArgsTo = CreateBoolVec(forbidNullArgs.second);
@@ -847,28 +847,28 @@ NUdf::TUnboxedValue TEngineHost::SelectRange(const TTableId& tableId, const TTab
     return NUdf::TUnboxedValuePod(new TSelectRangeResult(Db, Scheme, holderFactory, tableId, localTid, tags,
         skipNullKeysFlags, range, itemsLimit, bytesLimit, reverse, *this, systemColumnTags, GetShardId(),
         Settings.KeyAccessSampler));
-}
-
-// Updates the single row. Column in commands must be unique.
+} 
+ 
+// Updates the single row. Column in commands must be unique. 
 void TEngineHost::UpdateRow(const TTableId& tableId, const TArrayRef<const TCell>& row, const TArrayRef<const TUpdateCommand>& commands) {
-    ui64 localTid = LocalTableId(tableId);
+    ui64 localTid = LocalTableId(tableId); 
     Y_VERIFY(localTid, "table not exist");
-    const TScheme::TTableInfo* tableInfo = Scheme.GetTableInfo(localTid);
+    const TScheme::TTableInfo* tableInfo = Scheme.GetTableInfo(localTid); 
     TSmallVec<TRawTypeValue> key;
     ui64 keyBytes = 0;
     ConvertTableKeys(Scheme, tableInfo, row, key, &keyBytes);
-
+ 
     ui64 valueBytes = 0;
     TSmallVec<NTable::TUpdateOp> ops;
-    for (size_t i = 0; i < commands.size(); i++) {
-        const TUpdateCommand& upd = commands[i];
+    for (size_t i = 0; i < commands.size(); i++) { 
+        const TUpdateCommand& upd = commands[i]; 
         Y_VERIFY(upd.Operation == TKeyDesc::EColumnOperation::Set); // TODO[serxa]: support inplace update in update row
-        NScheme::TTypeId vtype = Scheme.GetColumnInfo(tableInfo, upd.Column)->PType;
+        NScheme::TTypeId vtype = Scheme.GetColumnInfo(tableInfo, upd.Column)->PType; 
         ops.emplace_back(upd.Column, NTable::ECellOp::Set,
             upd.Value.IsNull() ? TRawTypeValue() : TRawTypeValue(upd.Value.Data(), upd.Value.Size(), vtype));
         valueBytes += upd.Value.IsNull() ? 1 : upd.Value.Size();
-    }
-
+    } 
+ 
     if (auto collector = GetChangeCollector(tableId)) {
         collector->SetWriteVersion(GetWriteVersion(tableId));
         if (collector->NeedToReadKeys()) {
@@ -886,13 +886,13 @@ void TEngineHost::UpdateRow(const TTableId& tableId, const TArrayRef<const TCell
     Settings.KeyAccessSampler->AddSample(tableId, row);
     Counters.NUpdateRow++;
     Counters.UpdateRowBytes += keyBytes + valueBytes;
-}
-
-// Erases the single row.
+} 
+ 
+// Erases the single row. 
 void TEngineHost::EraseRow(const TTableId& tableId, const TArrayRef<const TCell>& row) {
-    ui64 localTid = LocalTableId(tableId);
+    ui64 localTid = LocalTableId(tableId); 
     Y_VERIFY(localTid, "table not exist");
-    const TScheme::TTableInfo* tableInfo = Scheme.GetTableInfo(localTid);
+    const TScheme::TTableInfo* tableInfo = Scheme.GetTableInfo(localTid); 
     TSmallVec<TRawTypeValue> key;
     ui64 keyBytes = 0;
     ConvertTableKeys(Scheme, tableInfo, row, key, &keyBytes);
@@ -914,40 +914,40 @@ void TEngineHost::EraseRow(const TTableId& tableId, const TArrayRef<const TCell>
     Settings.KeyAccessSampler->AddSample(tableId, row);
     Counters.NEraseRow++;
     Counters.EraseRowBytes += keyBytes + 8;
-}
-
-// Check that table is erased
-bool TEngineHost::IsPathErased(const TTableId& tableId) const {
-    ui64 localTid = LocalTableId(tableId);
-    return (localTid? !Scheme.GetTableInfo(localTid): true);
-}
-
-// Returns whether row belong this shard.
+} 
+ 
+// Check that table is erased 
+bool TEngineHost::IsPathErased(const TTableId& tableId) const { 
+    ui64 localTid = LocalTableId(tableId); 
+    return (localTid? !Scheme.GetTableInfo(localTid): true); 
+} 
+ 
+// Returns whether row belong this shard. 
 bool TEngineHost::IsMyKey(const TTableId& tableId, const TArrayRef<const TCell>& row) const {
     Y_UNUSED(tableId); Y_UNUSED(row);
-    return true;
-}
-
+    return true; 
+} 
+ 
 ui64 TEngineHost::GetTableSchemaVersion(const TTableId&) const {
     return 0;
 }
 
-ui64 TEngineHost::LocalTableId(const TTableId& tableId) const {
+ui64 TEngineHost::LocalTableId(const TTableId& tableId) const { 
     return tableId.PathId.LocalPathId;
-}
-
+} 
+ 
 void TEngineHost::ConvertKeys(const TScheme::TTableInfo* tableInfo, const TArrayRef<const TCell>& row,
     TSmallVec<TRawTypeValue>& key) const
-{
+{ 
     ConvertTableKeys(Scheme, tableInfo, row, key, nullptr);
-}
-
+} 
+ 
 void TEngineHost::SetPeriodicCallback(TPeriodicCallback&& callback) {
     PeriodicCallback = std::move(callback);
 }
 
 void AnalyzeRowType(TStructLiteral* columnIds, TSmallVec<NTable::TTag>& tags, TSmallVec<NTable::TTag>& systemColumnTags) {
-    // Find out tags that should be read in Select*() functions
+    // Find out tags that should be read in Select*() functions 
     tags.reserve(columnIds->GetValuesCount());
     for (ui32 i = 0; i < columnIds->GetValuesCount(); i++) {
         NTable::TTag columnId = AS_VALUE(TDataLiteral, columnIds->GetValue(i))->AsValue().Get<ui32>();
@@ -956,9 +956,9 @@ void AnalyzeRowType(TStructLiteral* columnIds, TSmallVec<NTable::TTag>& tags, TS
         } else {
             tags.push_back(columnId);
         }
-    }
-}
-
+    } 
+} 
+ 
 NUdf::TUnboxedValue GetCellValue(const TCell& cell, NScheme::TTypeId type) {
     if (cell.IsNull()) {
         return NUdf::TUnboxedValue();
@@ -1033,4 +1033,4 @@ NUdf::TUnboxedValue GetCellValue(const TCell& cell, NScheme::TTypeId type) {
     }
 }
 
-}}
+}} 
diff --git a/ydb/core/engine/minikql/minikql_engine_host.h b/ydb/core/engine/minikql/minikql_engine_host.h
index 012ee6891b..9f9cce8465 100644
--- a/ydb/core/engine/minikql/minikql_engine_host.h
+++ b/ydb/core/engine/minikql/minikql_engine_host.h
@@ -1,17 +1,17 @@
-#pragma once
-
+#pragma once 
+ 
 #include "change_collector_iface.h"
 
-#include <util/generic/cast.h>
+#include <util/generic/cast.h> 
 #include <ydb/core/tablet/tablet_exception.h>
 #include <ydb/library/yql/minikql/mkql_function_registry.h>
 #include <ydb/library/yql/minikql/mkql_node_cast.h>
 #include <ydb/library/yql/minikql/mkql_program_builder.h>
 #include <ydb/core/engine/mkql_engine_flat_host.h>
-
-namespace NKikimr {
+ 
+namespace NKikimr { 
 namespace NMiniKQL {
-
+ 
 struct TEngineHostCounters {
     ui64 NSelectRow = 0;
     ui64 NSelectRange = 0;
@@ -90,15 +90,15 @@ struct TEngineHostSettings {
 };
 
 class TEngineHost : public IEngineFlatHost {
-public:
+public: 
     using TScheme = NTable::TScheme;
 
     explicit TEngineHost(NTable::TDatabase& db, TEngineHostCounters& counters,
         const TEngineHostSettings& settings = TEngineHostSettings());
-    ui64 GetShardId() const override;
+    ui64 GetShardId() const override; 
     const TScheme::TTableInfo* GetTableInfo(const TTableId& tableId) const override;
-    bool IsReadonly() const override;
-    bool IsValidKey(TKeyDesc& key, std::pair<ui64, ui64>& maxSnapshotTime) const override;
+    bool IsReadonly() const override; 
+    bool IsValidKey(TKeyDesc& key, std::pair<ui64, ui64>& maxSnapshotTime) const override; 
     ui64 CalculateReadSize(const TVector<const TKeyDesc*>& keys) const override;
     ui64 CalculateResultSize(const TKeyDesc& key) const override;
     void PinPages(const TVector<THolder<TKeyDesc>>& keys, ui64 pageFaultCount) override;
@@ -115,10 +115,10 @@ public:
     void UpdateRow(const TTableId& tableId, const TArrayRef<const TCell>& row,
         const TArrayRef<const TUpdateCommand>& commands) override;
     void EraseRow(const TTableId& tableId, const TArrayRef<const TCell>& row) override;
-    bool IsPathErased(const TTableId& tableId) const override;
+    bool IsPathErased(const TTableId& tableId) const override; 
     bool IsMyKey(const TTableId& tableId, const TArrayRef<const TCell>& row) const override;
     ui64 GetTableSchemaVersion(const TTableId&) const override;
-
+ 
     void SetPeriodicCallback(TPeriodicCallback&& callback) override;
     void ExecPeriodicCallback() { if (PeriodicCallback) { PeriodicCallback();} }
 
@@ -129,20 +129,20 @@ public:
 
     virtual IChangeCollector* GetChangeCollector(const TTableId& tableId) const = 0;
 
-protected:
-    virtual ui64 LocalTableId(const TTableId& tableId) const;
+protected: 
+    virtual ui64 LocalTableId(const TTableId& tableId) const; 
     void ConvertKeys(const TScheme::TTableInfo* tableInfo, const TArrayRef<const TCell>& row,
         TSmallVec<TRawTypeValue>& key) const;
     void DoCalculateReadSize(const TKeyDesc& key, NTable::TSizeEnv& env) const;
 
-protected:
+protected: 
     NTable::TDatabase& Db;
-    const TScheme& Scheme;
+    const TScheme& Scheme; 
     const TEngineHostSettings Settings;
     TEngineHostCounters& Counters;
     TPeriodicCallback PeriodicCallback;
-};
-
+}; 
+ 
 class TUnversionedEngineHost : public TEngineHost {
 public:
     using TEngineHost::TEngineHost;
@@ -173,4 +173,4 @@ NUdf::TUnboxedValue CreateSelectRangeLazyRowsList(NTable::TDatabase& db, const N
 void ConvertTableKeys(const NTable::TScheme& scheme, const NTable::TScheme::TTableInfo* tableInfo,
     const TArrayRef<const TCell>& row, TSmallVec<TRawTypeValue>& key, ui64* keyDataBytes);
 
-}}
+}} 
diff --git a/ydb/core/engine/mkql_engine_flat_host_ut.cpp b/ydb/core/engine/mkql_engine_flat_host_ut.cpp
index 68679f168d..58a099e138 100644
--- a/ydb/core/engine/mkql_engine_flat_host_ut.cpp
+++ b/ydb/core/engine/mkql_engine_flat_host_ut.cpp
@@ -1,4 +1,4 @@
-#include "mkql_engine_flat_host.h"
+#include "mkql_engine_flat_host.h" 
 #include <ydb/core/engine/minikql/minikql_engine_host.h>
 #include <ydb/core/tablet_flat/flat_cxx_database.h>
 #include <ydb/library/yql/minikql/mkql_function_registry.h>
@@ -8,16 +8,16 @@
 #include <library/cpp/testing/unittest/registar.h>
 
 #include <ydb/core/tablet_flat/test/libs/table/test_dummy.h>
-
+ 
 namespace NKikimr {
 namespace NMiniKQL {
 
-using namespace NTabletFlatExecutor;
+using namespace NTabletFlatExecutor; 
 
 Y_UNIT_TEST_SUITE(TMiniKQLEngineFlatHostTest) {
 
     struct Schema : NIceDb::Schema {
-        struct TestTable : Table<1> {
+        struct TestTable : Table<1> { 
             struct ID : Column<1, NUdf::TDataType<ui64>::Id> {};
             struct Value : Column<2, NUdf::TDataType<ui64>::Id> {};
             struct Name : Column<3, NUdf::TDataType<NUdf::TUtf8>::Id> {};
@@ -25,78 +25,78 @@ Y_UNIT_TEST_SUITE(TMiniKQLEngineFlatHostTest) {
 
             using TKey = TableKey<ID>;
             using TColumns = TableColumns<ID, Value, Name, BoolValue>;
-        };
+        }; 
 
-        struct TestTable2 : Table<2> {
+        struct TestTable2 : Table<2> { 
             struct ID1 : Column<1, NUdf::TDataType<ui64>::Id> {};
             struct ID2 : Column<2, NUdf::TDataType<ui64>::Id> {};
 
             using TKey = TableKey<ID1, ID2>;
             using TColumns = TableColumns<ID1, ID2>;
-        };
+        }; 
 
         using TTables = SchemaTables<TestTable, TestTable2>;
-    };
+    }; 
 
 
     Y_UNIT_TEST(ShardId) {
         NTable::TDatabase DB;
         TEngineHostCounters hostCounters;
         TUnversionedEngineHost host(DB, hostCounters, TEngineHostSettings(100));
-        UNIT_ASSERT_VALUES_EQUAL(host.GetShardId(), 100);
+        UNIT_ASSERT_VALUES_EQUAL(host.GetShardId(), 100); 
     }
 
     Y_UNIT_TEST(Basic) {
         NTable::TDatabase DB;
         NIceDb::TNiceDb db(DB);
 
-        { // Create tables
+        { // Create tables 
             NTable::TDummyEnv env;
             DB.Begin(1, env);
             db.Materialize<Schema>();
             DB.Commit(1, true);
-        }
+        } 
 
-        { // Fill tables with some stuff
+        { // Fill tables with some stuff 
             NTable::TDummyEnv env;
             DB.Begin(2, env);
-            for (ui64 i = 0; i < 1000; ++i) {
-                db.Table<Schema::TestTable>().Key(i).Update(NIceDb::TUpdate<Schema::TestTable::Value>(i),
-                                                            NIceDb::TUpdate<Schema::TestTable::Name>(ToString(i)),
-                                                            NIceDb::TUpdate<Schema::TestTable::BoolValue>(i % 2 == 0));
-            }
+            for (ui64 i = 0; i < 1000; ++i) { 
+                db.Table<Schema::TestTable>().Key(i).Update(NIceDb::TUpdate<Schema::TestTable::Value>(i), 
+                                                            NIceDb::TUpdate<Schema::TestTable::Name>(ToString(i)), 
+                                                            NIceDb::TUpdate<Schema::TestTable::BoolValue>(i % 2 == 0)); 
+            } 
             DB.Commit(2, true);
-        }
+        } 
 
-        { // Execute some minikql
+        { // Execute some minikql 
             NTable::TDummyEnv env;
             DB.Begin(3, env);
             TEngineHostCounters hostCounters;
             TUnversionedEngineHost host(DB, hostCounters);
 
-            // TODO: ... MINIKQL ...
+            // TODO: ... MINIKQL ... 
 
             Y_UNUSED(host);
             DB.Commit(3, true);
-        }
+        } 
 
-        { // Check data
+        { // Check data 
             NTable::TDummyEnv env;
             DB.Begin(4, env);
-            for (ui64 i = 0; i < 1000; ++i) {
+            for (ui64 i = 0; i < 1000; ++i) { 
                 auto row = db.Table<Schema::TestTable>().Key(i).Select<Schema::TestTable::Value, Schema::TestTable::Name, Schema::TestTable::BoolValue>();
                 UNIT_ASSERT(row.IsReady());
                 UNIT_ASSERT(row.IsValid());
                 ui64 value = row.GetValue<Schema::TestTable::Value>();
                 TString name = row.GetValue<Schema::TestTable::Name>();
                 bool boolValue = row.GetValue<Schema::TestTable::BoolValue>();
-                UNIT_ASSERT(value == i);
-                UNIT_ASSERT(ToString(value) == name);
-                UNIT_ASSERT(boolValue == (i % 2 == 0));
-            }
+                UNIT_ASSERT(value == i); 
+                UNIT_ASSERT(ToString(value) == name); 
+                UNIT_ASSERT(boolValue == (i % 2 == 0)); 
+            } 
             DB.Commit(4, true);
-        }
+        } 
     }
 }
 
-}}
+}} 
diff --git a/ydb/core/engine/ut/ya.make b/ydb/core/engine/ut/ya.make
index 02810813ab..826dd7f38e 100644
--- a/ydb/core/engine/ut/ya.make
+++ b/ydb/core/engine/ut/ya.make
@@ -14,20 +14,20 @@ TIMEOUT(150)
 SIZE(MEDIUM)
 
 SRCS(
-    mkql_engine_flat_host_ut.cpp
+    mkql_engine_flat_host_ut.cpp 
     mkql_engine_flat_ut.cpp
     kikimr_program_builder_ut.cpp
     mkql_proto_ut.cpp
 )
 
-PEERDIR(
+PEERDIR( 
     ydb/core/engine/minikql
     ydb/core/kqp/ut/common
     ydb/core/tablet_flat/test/libs/table
     ydb/library/mkql_proto/ut/helpers
     ydb/library/yql/public/udf/service/exception_policy
-)
-
+) 
+ 
 YQL_LAST_ABI_VERSION()
 
 END()
diff --git a/ydb/core/erasure/erasure.cpp b/ydb/core/erasure/erasure.cpp
index a41b027932..963cfc6158 100644
--- a/ydb/core/erasure/erasure.cpp
+++ b/ydb/core/erasure/erasure.cpp
@@ -161,7 +161,7 @@ public:
     ui32 FirstSmallPartIdx;
 
     ui32 TotalParts;
-    ui64 WholeBlocks; // Data consists of (WholeBlocks * BlockSize + TailSize) bytes
+    ui64 WholeBlocks; // Data consists of (WholeBlocks * BlockSize + TailSize) bytes 
     ui32 TailSize;
 
     ui32 Prime;
@@ -171,9 +171,9 @@ public:
     TBufferDataPart BufferDataPart;
     char *Data;
 
-    // Maximum blocks to be split during one run in incremental mode
-    static constexpr ui64 IncrementalSplitMaxBlocks = 1024;
-
+    // Maximum blocks to be split during one run in incremental mode 
+    static constexpr ui64 IncrementalSplitMaxBlocks = 1024; 
+ 
     TBlockParams(TErasureType::ECrcMode crcMode, const TErasureType &type, ui64 dataSize) {
         DataSize = dataSize;
         PartUserSize = type.PartUserSize(dataSize);
@@ -210,22 +210,22 @@ public:
         if (isStripe) {
             Data = data;
         } else {
-            //
-            // All data is a matrix. Matrix cell is ColumnSize bytes.
-            // Each part is a matrix column (continuous in memory).
-            // Each block is a matrix row (not continuous in memory).
-            // Cells are numerated as they appear in memory.
-            //
-            //   1 5 9 C   <--   4 required pointers (beginning of each data part)
-            //   2 6 A D
-            //   3 7 B E
-            //   4 8   *
-            //
-            // There are two large parts (1st and 2nd), followed by two small parts (3rd and 4th).
-            // Large part is exactly ColumnSize bytes larger than small part.
-            // The last part is special, it can contain tail less than ColumnSize bytes (shown as *)
-            //
-
+            // 
+            // All data is a matrix. Matrix cell is ColumnSize bytes. 
+            // Each part is a matrix column (continuous in memory). 
+            // Each block is a matrix row (not continuous in memory). 
+            // Cells are numerated as they appear in memory. 
+            // 
+            //   1 5 9 C   <--   4 required pointers (beginning of each data part) 
+            //   2 6 A D 
+            //   3 7 B E 
+            //   4 8   * 
+            // 
+            // There are two large parts (1st and 2nd), followed by two small parts (3rd and 4th). 
+            // Large part is exactly ColumnSize bytes larger than small part. 
+            // The last part is special, it can contain tail less than ColumnSize bytes (shown as *) 
+            // 
+ 
             BufferDataPart.resize(DataParts);
             for (ui32 i = 0; i < FirstSmallPartIdx; ++i) {
                 BufferDataPart[i] = (ui64*)(data + i * LargePartSize);
@@ -330,10 +330,10 @@ public:
 
 
     template <bool isStripe, bool isFromDataParts>
-    void EoSplitWhole(char *data, TBufferDataPart &bufferDataPart, TDataPartSet &outPartSet, ui64 writePosition, ui64 firstBlock, ui64 lastBlock) {
+    void EoSplitWhole(char *data, TBufferDataPart &bufferDataPart, TDataPartSet &outPartSet, ui64 writePosition, ui64 firstBlock, ui64 lastBlock) { 
         const ui32 lastPartIdx = DataParts + 1;
         const ui32 m = Prime;
-        for (ui64 blockIdx = firstBlock; blockIdx != lastBlock; ++blockIdx) {
+        for (ui64 blockIdx = firstBlock; blockIdx != lastBlock; ++blockIdx) { 
 
 #define IN_EL_STRIPE(row, column) *((ui64*)data + (blockIdx * LineCount + (row)) * DataParts + (column))
 #define IN_EL_BLOCK(row, column) bufferDataPart[column][blockIdx * LineCount + (row)]
@@ -544,18 +544,18 @@ public:
         }
     }
 
-    template <bool isStripe, bool isFromDataParts, bool isIncremental = false>
+    template <bool isStripe, bool isFromDataParts, bool isIncremental = false> 
     void EoSplit(TDataPartSet &outPartSet) {
-        ui64 readPosition = isIncremental? ColumnSize * outPartSet.CurBlockIdx: 0;
-        ui64 firstBlock = isIncremental? outPartSet.CurBlockIdx: 0;
-        ui64 lastBlock = isIncremental? Min(WholeBlocks, firstBlock + IncrementalSplitMaxBlocks): WholeBlocks;
-        outPartSet.CurBlockIdx = lastBlock;
+        ui64 readPosition = isIncremental? ColumnSize * outPartSet.CurBlockIdx: 0; 
+        ui64 firstBlock = isIncremental? outPartSet.CurBlockIdx: 0; 
+        ui64 lastBlock = isIncremental? Min(WholeBlocks, firstBlock + IncrementalSplitMaxBlocks): WholeBlocks; 
+        outPartSet.CurBlockIdx = lastBlock; 
         bool hasTail = TailSize;
-
+ 
         if (isFromDataParts) {
             Y_VERIFY(outPartSet.Parts[0].Offset % ColumnSize == 0);
             readPosition = outPartSet.Parts[0].Offset;
-            lastBlock = Min(WholeBlocks - readPosition / ColumnSize, outPartSet.Parts[0].Size / ColumnSize);
+            lastBlock = Min(WholeBlocks - readPosition / ColumnSize, outPartSet.Parts[0].Size / ColumnSize); 
             hasTail = TailSize && (outPartSet.Parts[0].Size + readPosition > WholeBlocks * ColumnSize);
         }
         TRACE(__LINE__ << " EoSplit readPosition# " << readPosition
@@ -564,11 +564,11 @@ public:
                 << " fullDataSize# " << outPartSet.FullDataSize
                 << Endl);
         // Use all whole columns of all the parts
-        EoSplitWhole<isStripe, isFromDataParts>(Data, BufferDataPart, outPartSet, readPosition, firstBlock, lastBlock);
+        EoSplitWhole<isStripe, isFromDataParts>(Data, BufferDataPart, outPartSet, readPosition, firstBlock, lastBlock); 
 
         // Use the remaining parts to fill in the last block
         // Write the tail of the data
-        if (hasTail && outPartSet.IsSplitDone()) {
+        if (hasTail && outPartSet.IsSplitDone()) { 
             char lastBlockSource[MAX_TOTAL_PARTS * (MAX_TOTAL_PARTS - 2) * sizeof(ui64)] = {};
             TBufferDataPart bufferDataPart;
             if (!isFromDataParts) {
@@ -576,7 +576,7 @@ public:
             }
 
             EoSplitWhole<isStripe, isFromDataParts>(lastBlockSource, bufferDataPart, outPartSet,
-                    WholeBlocks * ColumnSize, 0, 1);
+                    WholeBlocks * ColumnSize, 0, 1); 
         }
     }
 
@@ -1406,26 +1406,26 @@ void EoBlockSplit(TErasureType::ECrcMode crcMode, const TErasureType &type, cons
     // Prepare input data pointers
     p.PrepareInputDataPointers<isStripe>(const_cast<char*>(buffer.data()));
 
-    // Prepare if not yet
-    if (!outPartSet.IsSplitStarted()) {
-        outPartSet.StartSplit(p.WholeBlocks);
-
-        outPartSet.FullDataSize = buffer.size();
-        outPartSet.PartsMask = ~((~(ui32)0) << p.TotalParts);
-        outPartSet.Parts.resize(p.TotalParts);
-        for (ui32 i = 0; i < p.TotalParts; ++i) {
-            TRACE("Line# " << __LINE__ << Endl);
-            Refurbish(outPartSet.Parts[i], p.PartContainerSize);
-        }
-        outPartSet.MemoryConsumed = p.TotalParts * outPartSet.Parts[0].MemoryConsumed();
-    }
-
-    p.EoSplit<isStripe, false, true>(outPartSet);
-
-    // Finalize if split has been done to completion
-    if (outPartSet.IsSplitDone()) {
-        PadAndCrcParts(crcMode, p, outPartSet);
-    }
+    // Prepare if not yet 
+    if (!outPartSet.IsSplitStarted()) { 
+        outPartSet.StartSplit(p.WholeBlocks); 
+ 
+        outPartSet.FullDataSize = buffer.size(); 
+        outPartSet.PartsMask = ~((~(ui32)0) << p.TotalParts); 
+        outPartSet.Parts.resize(p.TotalParts); 
+        for (ui32 i = 0; i < p.TotalParts; ++i) { 
+            TRACE("Line# " << __LINE__ << Endl); 
+            Refurbish(outPartSet.Parts[i], p.PartContainerSize); 
+        } 
+        outPartSet.MemoryConsumed = p.TotalParts * outPartSet.Parts[0].MemoryConsumed(); 
+    }
+
+    p.EoSplit<isStripe, false, true>(outPartSet); 
+ 
+    // Finalize if split has been done to completion 
+    if (outPartSet.IsSplitDone()) { 
+        PadAndCrcParts(crcMode, p, outPartSet); 
+    } 
 }
 
 template <bool isStripe>
@@ -2587,13 +2587,13 @@ static void VerifyPartSizes(TDataPartSet& partSet, size_t definedPartEndIdx) {
 }
 
 void TErasureType::SplitData(ECrcMode crcMode, const TString& buffer, TDataPartSet& outPartSet) const {
-    outPartSet.ResetSplit();
-    do {
-        IncrementalSplitData(crcMode, buffer, outPartSet);
-    } while (!outPartSet.IsSplitDone());
-}
-
-void TErasureType::IncrementalSplitData(ECrcMode crcMode, const TString& buffer, TDataPartSet& outPartSet) const {
+    outPartSet.ResetSplit(); 
+    do { 
+        IncrementalSplitData(crcMode, buffer, outPartSet); 
+    } while (!outPartSet.IsSplitDone()); 
+} 
+ 
+void TErasureType::IncrementalSplitData(ECrcMode crcMode, const TString& buffer, TDataPartSet& outPartSet) const { 
     const TErasureParameters& erasure = ErasureSpeciesParameters[ErasureSpecies];
     switch (erasure.ErasureFamily) {
         case TErasureType::ErasureMirror:
@@ -2601,7 +2601,7 @@ void TErasureType::IncrementalSplitData(ECrcMode crcMode, const TString& buffer,
             break;
         case TErasureType::ErasureParityStripe:
             switch (erasure.ParityParts) {
-                case 1:
+                case 1: 
                     XorBlockSplit<true>(crcMode ,*this, buffer, outPartSet);
                     break;
                 case 2:
@@ -2637,9 +2637,9 @@ void TErasureType::IncrementalSplitData(ECrcMode crcMode, const TString& buffer,
             ythrow TWithBackTrace<yexception>() << "Unknown ErasureFamily = " << (i32)erasure.ErasureFamily;
             break;
     }
-    if (outPartSet.IsSplitDone()) {
-        VerifyPartSizes(outPartSet, Max<size_t>());
-    }
+    if (outPartSet.IsSplitDone()) { 
+        VerifyPartSizes(outPartSet, Max<size_t>()); 
+    } 
 }
 
 void MirrorSplitDiff(const TErasureType &type, const TVector<TDiff> &diffs, TPartDiffSet& outDiffSet) {
diff --git a/ydb/core/erasure/erasure.h b/ydb/core/erasure/erasure.h
index 35bd68c2d2..0d9222c614 100644
--- a/ydb/core/erasure/erasure.h
+++ b/ydb/core/erasure/erasure.h
@@ -147,16 +147,16 @@ struct TPartFragment {
 };
 
 struct TDataPartSet {
-    ui64 FullDataSize = 0;
-    ui32 PartsMask = 0;
+    ui64 FullDataSize = 0; 
+    ui32 PartsMask = 0; 
     TStackVec<TPartFragment, 8> Parts;
     TPartFragment FullDataFragment;
-    ui64 MemoryConsumed = 0;
-    bool IsFragment = false;
+    ui64 MemoryConsumed = 0; 
+    bool IsFragment = false; 
 
-    // Incremental split KIKIMR-10794
-    ui64 WholeBlocks = 0; // Blocks to be split (not including tail)
-    ui64 CurBlockIdx = 0; // Blocks have been already split
+    // Incremental split KIKIMR-10794 
+    ui64 WholeBlocks = 0; // Blocks to be split (not including tail) 
+    ui64 CurBlockIdx = 0; // Blocks have been already split 
 
     void Detach() {
         for (size_t i = 0; i < Parts.size(); ++i) {
@@ -164,26 +164,26 @@ struct TDataPartSet {
         }
         FullDataFragment.Detach();
     }
-
-    void StartSplit(ui64 wholeBlocks) {
-        WholeBlocks = wholeBlocks;
-    }
-
-    bool IsSplitStarted() const {
-        return WholeBlocks != 0;
-    }
-
-    bool IsSplitDone() const {
-        // True if either:
-        //  - split is not started
-        //  - split is done
-        return CurBlockIdx >= WholeBlocks;
-    }
-
-    void ResetSplit() {
-        WholeBlocks = 0;
-        CurBlockIdx = 0;
-    }
+ 
+    void StartSplit(ui64 wholeBlocks) { 
+        WholeBlocks = wholeBlocks; 
+    } 
+ 
+    bool IsSplitStarted() const { 
+        return WholeBlocks != 0; 
+    } 
+ 
+    bool IsSplitDone() const { 
+        // True if either: 
+        //  - split is not started 
+        //  - split is done 
+        return CurBlockIdx >= WholeBlocks; 
+    } 
+ 
+    void ResetSplit() { 
+        WholeBlocks = 0; 
+        CurBlockIdx = 0; 
+    } 
 };
 
 struct TPartOffsetRange {  // [Begin, End)
@@ -318,7 +318,7 @@ struct TErasureType {
     ui32 Prime() const;
 
     void SplitData(ECrcMode crcMode, const TString& buffer, TDataPartSet& outPartSet) const;
-    void IncrementalSplitData(ECrcMode crcMode, const TString& buffer, TDataPartSet& outPartSet) const;
+    void IncrementalSplitData(ECrcMode crcMode, const TString& buffer, TDataPartSet& outPartSet) const; 
 
     void SplitDiffs(ECrcMode crcMode, ui32 dataSize, const TVector<TDiff> &diffs, TPartDiffSet& outDiffSet) const;
     void ApplyDiff(ECrcMode crcMode, ui8 *dst, const TVector<TDiff> &diffs) const;
diff --git a/ydb/core/grpc_services/base/base.h b/ydb/core/grpc_services/base/base.h
index 44b25c4a5f..fbc945daca 100644
--- a/ydb/core/grpc_services/base/base.h
+++ b/ydb/core/grpc_services/base/base.h
@@ -4,7 +4,7 @@
 #include <grpc++/support/slice.h>
 
 #include <library/cpp/grpc/server/grpc_request_base.h>
-#include <library/cpp/string_utils/quote/quote.h>
+#include <library/cpp/string_utils/quote/quote.h> 
 
 #include <ydb/public/api/protos/ydb_issue_message.pb.h>
 #include <ydb/public/api/protos/ydb_status_codes.pb.h>
@@ -26,20 +26,20 @@ class TAppConfig;
 }
 
 namespace NKikimr {
-
+ 
 namespace NSchemeCache {
 struct TSchemeCacheNavigate;
 }
 
-namespace NRpcService {
-
-struct TRlPath {
-    TString CoordinationNode;
-    TString ResourcePath;
-};
-
-}
-
+namespace NRpcService { 
+ 
+struct TRlPath { 
+    TString CoordinationNode; 
+    TString ResourcePath; 
+}; 
+ 
+} 
+ 
 namespace NGRpcService {
 
 using TYdbIssueMessageType = Ydb::Issue::IssueMessage;
@@ -202,12 +202,12 @@ struct TRpcServices {
         EvAnalyticsInternalGetTask,
         EvAnalyticsInternalWriteTaskResult,
         EvAnalyticsInternalNodesHealthCheck,
-        EvCreateYndxRateLimiterResource,
-        EvAlterYndxRateLimiterResource,
-        EvDropYndxRateLimiterResource,
-        EvListYndxRateLimiterResources,
-        EvDescribeYndxRateLimiterResource,
-        EvAcquireYndxRateLimiterResource,
+        EvCreateYndxRateLimiterResource, 
+        EvAlterYndxRateLimiterResource, 
+        EvDropYndxRateLimiterResource, 
+        EvListYndxRateLimiterResources, 
+        EvDescribeYndxRateLimiterResource, 
+        EvAcquireYndxRateLimiterResource, 
         EvGrpcRuntimeRequest // !!! DO NOT ADD NEW REQUEST !!!
     };
 
@@ -222,9 +222,9 @@ struct TRpcServices {
     struct TEvForgetOperation : public TEventLocal<TEvForgetOperation, TRpcServices::EvForgetOperation> {};
 };
 
-// Should be specialized for real responses
-template <class T>
-void FillYdbStatus(T& resp, const NYql::TIssues& issues, Ydb::StatusIds::StatusCode status);
+// Should be specialized for real responses 
+template <class T> 
+void FillYdbStatus(T& resp, const NYql::TIssues& issues, Ydb::StatusIds::StatusCode status); 
 
 class TProtoResponseHelper {
 public:
diff --git a/ydb/core/grpc_services/base/ya.make b/ydb/core/grpc_services/base/ya.make
index 49d94693f0..4454c652d4 100644
--- a/ydb/core/grpc_services/base/ya.make
+++ b/ydb/core/grpc_services/base/ya.make
@@ -1,24 +1,24 @@
-LIBRARY()
-
-OWNER(
-    dcherednik
-    g:kikimr
-)
-
-SRCS(
-    base.h
-)
-
-PEERDIR(
-    library/cpp/grpc/server
-    library/cpp/string_utils/quote
+LIBRARY() 
+ 
+OWNER( 
+    dcherednik 
+    g:kikimr 
+) 
+ 
+SRCS( 
+    base.h 
+) 
+ 
+PEERDIR( 
+    library/cpp/grpc/server 
+    library/cpp/string_utils/quote 
     ydb/core/base
     ydb/core/grpc_streaming
     ydb/public/api/protos
     ydb/public/sdk/cpp/client/resources
     ydb/library/yql/public/issue
-)
-
-YQL_LAST_ABI_VERSION()
-
-END()
+) 
+ 
+YQL_LAST_ABI_VERSION() 
+ 
+END() 
diff --git a/ydb/core/grpc_services/local_rate_limiter.cpp b/ydb/core/grpc_services/local_rate_limiter.cpp
index 3a2fcb78cb..f0cffca3a6 100644
--- a/ydb/core/grpc_services/local_rate_limiter.cpp
+++ b/ydb/core/grpc_services/local_rate_limiter.cpp
@@ -2,7 +2,7 @@
 #include "rpc_common.h"
 
 #include <ydb/core/grpc_services/local_rpc/local_rpc.h>
-
+ 
 namespace NKikimr {
 namespace NRpcService {
 
diff --git a/ydb/core/grpc_services/local_rpc/local_rpc.h b/ydb/core/grpc_services/local_rpc/local_rpc.h
index 23c3b6c803..c196172564 100644
--- a/ydb/core/grpc_services/local_rpc/local_rpc.h
+++ b/ydb/core/grpc_services/local_rpc/local_rpc.h
@@ -1,7 +1,7 @@
 #pragma once
 
 #include <ydb/core/grpc_services/base/base.h>
-
+ 
 #include <ydb/core/base/appdata.h>
 
 #include <library/cpp/threading/future/future.h>
diff --git a/ydb/core/grpc_services/local_rpc/ya.make b/ydb/core/grpc_services/local_rpc/ya.make
index 59a7db6083..5562857002 100644
--- a/ydb/core/grpc_services/local_rpc/ya.make
+++ b/ydb/core/grpc_services/local_rpc/ya.make
@@ -1,19 +1,19 @@
-LIBRARY()
-
-OWNER(
-    dcherednik
-    g:kikimr
-)
-
-SRCS(
-    local_rpc.h
-)
-
-PEERDIR(
+LIBRARY() 
+ 
+OWNER( 
+    dcherednik 
+    g:kikimr 
+) 
+ 
+SRCS( 
+    local_rpc.h 
+) 
+ 
+PEERDIR( 
     ydb/core/base
     ydb/core/grpc_services/base
-)
-
-YQL_LAST_ABI_VERSION()
-
-END()
+) 
+ 
+YQL_LAST_ABI_VERSION() 
+ 
+END() 
diff --git a/ydb/core/grpc_services/rpc_calls.cpp b/ydb/core/grpc_services/rpc_calls.cpp
index b94d168147..ea93f27f2c 100644
--- a/ydb/core/grpc_services/rpc_calls.cpp
+++ b/ydb/core/grpc_services/rpc_calls.cpp
@@ -6,26 +6,26 @@
 namespace NKikimr {
 namespace NGRpcService {
 
-template <>
+template <> 
 void FillYdbStatus(Ydb::PersQueue::V1::StreamingWriteServerMessage& resp, const NYql::TIssues& issues, Ydb::StatusIds::StatusCode status) {
     resp.set_status(status);
     NYql::IssuesToMessage(issues, resp.mutable_issues());
 }
 
-template <>
+template <> 
 void FillYdbStatus(Ydb::PersQueue::V1::MigrationStreamingReadServerMessage& resp, const NYql::TIssues& issues, Ydb::StatusIds::StatusCode status) {
     resp.set_status(status);
     NYql::IssuesToMessage(issues, resp.mutable_issues());
 }
 
-template <>
+template <> 
 void FillYdbStatus(Draft::Dummy::PingResponse& resp, const NYql::TIssues& issues, Ydb::StatusIds::StatusCode status) {
     Y_UNUSED(resp);
     Y_UNUSED(issues);
     Y_UNUSED(status);
 }
 
-template <>
+template <> 
 void FillYdbStatus(Ydb::Coordination::SessionResponse& resp, const NYql::TIssues& issues, Ydb::StatusIds::StatusCode status) {
     auto* failure = resp.mutable_failure();
     failure->set_status(status);
diff --git a/ydb/core/grpc_services/rpc_calls.h b/ydb/core/grpc_services/rpc_calls.h
index 43136c2f4a..169e2fcdc2 100644
--- a/ydb/core/grpc_services/rpc_calls.h
+++ b/ydb/core/grpc_services/rpc_calls.h
@@ -33,16 +33,16 @@
 namespace NKikimr {
 namespace NGRpcService {
 
-template <>
-void FillYdbStatus(Ydb::PersQueue::V1::StreamingWriteServerMessage& resp, const NYql::TIssues& issues, Ydb::StatusIds::StatusCode status);
+template <> 
+void FillYdbStatus(Ydb::PersQueue::V1::StreamingWriteServerMessage& resp, const NYql::TIssues& issues, Ydb::StatusIds::StatusCode status); 
 
-template <>
-void FillYdbStatus(Ydb::PersQueue::V1::MigrationStreamingReadServerMessage& resp, const NYql::TIssues& issues, Ydb::StatusIds::StatusCode status);
+template <> 
+void FillYdbStatus(Ydb::PersQueue::V1::MigrationStreamingReadServerMessage& resp, const NYql::TIssues& issues, Ydb::StatusIds::StatusCode status); 
 
-template <>
-void FillYdbStatus(Draft::Dummy::PingResponse& resp, const NYql::TIssues& issues, Ydb::StatusIds::StatusCode status);
+template <> 
+void FillYdbStatus(Draft::Dummy::PingResponse& resp, const NYql::TIssues& issues, Ydb::StatusIds::StatusCode status); 
 
-template <>
+template <> 
 void FillYdbStatus(Ydb::Coordination::SessionResponse& resp, const NYql::TIssues& issues, Ydb::StatusIds::StatusCode status);
 
 using TEvAlterTableRequest = TGRpcRequestValidationWrapper<TRpcServices::EvAlterTable, Ydb::Table::AlterTableRequest, Ydb::Table::AlterTableResponse, true, TRateLimiterMode::Rps>;
diff --git a/ydb/core/grpc_services/rpc_create_session.cpp b/ydb/core/grpc_services/rpc_create_session.cpp
index 2f6e9fae26..7f745d62cd 100644
--- a/ydb/core/grpc_services/rpc_create_session.cpp
+++ b/ydb/core/grpc_services/rpc_create_session.cpp
@@ -5,7 +5,7 @@
 #include "rpc_kqp_base.h"
 
 #include <ydb/core/grpc_services/local_rpc/local_rpc.h>
-
+ 
 #include <ydb/library/yql/public/issue/yql_issue_message.h>
 #include <ydb/library/yql/public/issue/yql_issue.h>
 
diff --git a/ydb/core/grpc_services/rpc_rate_limiter_api.cpp b/ydb/core/grpc_services/rpc_rate_limiter_api.cpp
index 5579be8bdb..22e4fff62a 100644
--- a/ydb/core/grpc_services/rpc_rate_limiter_api.cpp
+++ b/ydb/core/grpc_services/rpc_rate_limiter_api.cpp
@@ -205,8 +205,8 @@ static void CopyProps(const Ydb::RateLimiter::Resource& src, NKikimrKesus::TStre
     auto& props = *dst.MutableHierarhicalDRRResourceConfig();
     props.SetMaxUnitsPerSecond(srcProps.max_units_per_second());
     props.SetMaxBurstSizeCoefficient(srcProps.max_burst_size_coefficient());
-    props.SetPrefetchCoefficient(srcProps.prefetch_coefficient());
-    props.SetPrefetchWatermark(srcProps.prefetch_watermark());
+    props.SetPrefetchCoefficient(srcProps.prefetch_coefficient()); 
+    props.SetPrefetchWatermark(srcProps.prefetch_watermark()); 
 }
 
 static void CopyProps(const NKikimrKesus::TStreamingQuoterResource& src, Ydb::RateLimiter::Resource& dst) {
@@ -215,8 +215,8 @@ static void CopyProps(const NKikimrKesus::TStreamingQuoterResource& src, Ydb::Ra
     auto& props = *dst.mutable_hierarchical_drr();
     props.set_max_units_per_second(srcProps.GetMaxUnitsPerSecond());
     props.set_max_burst_size_coefficient(srcProps.GetMaxBurstSizeCoefficient());
-    props.set_prefetch_coefficient(srcProps.GetPrefetchCoefficient());
-    props.set_prefetch_watermark(srcProps.GetPrefetchWatermark());
+    props.set_prefetch_coefficient(srcProps.GetPrefetchCoefficient()); 
+    props.set_prefetch_watermark(srcProps.GetPrefetchWatermark()); 
 }
 
 class TCreateRateLimiterResourceRPC : public TRateLimiterControlRequest<TEvCreateRateLimiterResource> {
diff --git a/ydb/core/kesus/tablet/events.h b/ydb/core/kesus/tablet/events.h
index 872f0149c9..bbfe875232 100644
--- a/ydb/core/kesus/tablet/events.h
+++ b/ydb/core/kesus/tablet/events.h
@@ -87,8 +87,8 @@ struct TEvKesus {
         EvAggregatedResourceConsumptionStatistics,
         EvGetQuoterResourceCounters,
         EvGetQuoterResourceCountersResult,
-        EvAccountResources,
-        EvAccountResourcesAck,
+        EvAccountResources, 
+        EvAccountResourcesAck, 
 
         EvEnd
     };
@@ -530,16 +530,16 @@ struct TEvKesus {
         using TBaseEvent = TEventPBWithArena<TEvGetQuoterResourceCountersResult, NKikimrKesus::TEvGetQuoterResourceCountersResult, EvGetQuoterResourceCountersResult>;
         using TBaseEvent::TBaseEvent;
     };
-
-    struct TEvAccountResources : public TEventPBWithArena<TEvAccountResources, NKikimrKesus::TEvAccountResources, EvAccountResources> {
-        using TBaseEvent = TEventPBWithArena<TEvAccountResources, NKikimrKesus::TEvAccountResources, EvAccountResources>;
-        using TBaseEvent::TBaseEvent;
-    };
-
-    struct TEvAccountResourcesAck : public TEventPBWithArena<TEvAccountResourcesAck, NKikimrKesus::TEvAccountResourcesAck, EvAccountResourcesAck> {
-        using TBaseEvent = TEventPBWithArena<TEvAccountResourcesAck, NKikimrKesus::TEvAccountResourcesAck, EvAccountResourcesAck>;
-        using TBaseEvent::TBaseEvent;
-    };
+ 
+    struct TEvAccountResources : public TEventPBWithArena<TEvAccountResources, NKikimrKesus::TEvAccountResources, EvAccountResources> { 
+        using TBaseEvent = TEventPBWithArena<TEvAccountResources, NKikimrKesus::TEvAccountResources, EvAccountResources>; 
+        using TBaseEvent::TBaseEvent; 
+    }; 
+ 
+    struct TEvAccountResourcesAck : public TEventPBWithArena<TEvAccountResourcesAck, NKikimrKesus::TEvAccountResourcesAck, EvAccountResourcesAck> { 
+        using TBaseEvent = TEventPBWithArena<TEvAccountResourcesAck, NKikimrKesus::TEvAccountResourcesAck, EvAccountResourcesAck>; 
+        using TBaseEvent::TBaseEvent; 
+    }; 
 };
 
 }
diff --git a/ydb/core/kesus/tablet/probes.h b/ydb/core/kesus/tablet/probes.h
index 077375fb36..226d1a9fd0 100644
--- a/ydb/core/kesus/tablet/probes.h
+++ b/ydb/core/kesus/tablet/probes.h
@@ -37,37 +37,37 @@ struct TActorIdParam {
           TYPES(TString, TString, TInstant, double, ui32),              \
           NAMES("quoter", "resource", "timestampSec", "giveAmount", "childWeight")) \
                                                                         \
-    PROBE(ResourceBillSend, GROUPS("QuoterResource", "RateAccounting"), \
-          TYPES(TString, TString, TString, ui64, TInstant, TInstant, TString, TString, TString, TString, TString, TString), \
-          NAMES("quoter", "resource", "category", "quantity", "billStartSec", "billEndSec", "version", "schema", "cloudId", "folderId", "resourceId", "sourceId")) \
-    PROBE(ResourceBillAdd, GROUPS("QuoterResource", "RateAccounting"), \
-          TYPES(TString, TString, TString, TInstant, TInstant, TDuration, double, double), \
-          NAMES("quoter", "resource", "category", "accumulatedSec", "accountSec", "accDeltaMs", "quantity", "value")) \
-    PROBE(ResourceAccountConfigure, GROUPS("QuoterResource", "RateAccounting"), \
-          TYPES(TString, TString, double, double, double, TInstant, double, double, double, TInstant), \
-          NAMES("quoter", "resource", "provisionedRate", "provisionedBurst", "provisionedAvail", "provisionedLastSec", "onDemandRate", "onDemandBurst", "onDemandAvail", "onDemandLastSec")) \
-    PROBE(ResourceAccount, GROUPS("QuoterResource", "RateAccounting"), \
-          TYPES(TString, TString, TInstant, double, double, double, double, double, double, double, double, double, double), \
-          NAMES("quoter", "resource", "accountSec", "provisionedAndOnDemand", "provisioned", "onDemand", "overshoot", "provisionedRate", "provisionedBurst", "provisionedAvail", "onDemandRate", "onDemandBurst", "onDemandAvail")) \
-    PROBE(ResourceReportDedup, GROUPS("QuoterResource", "RateAccounting", "RateAccountingReport"), \
-          TYPES(TString, TString, ui64, ui64, TInstant), \
-          NAMES("quoter", "resource", "skip", "size", "reportSec")) \
-    PROBE(ResourceReportDedupFull, GROUPS("QuoterResource", "RateAccounting", "RateAccountingReport"), \
-          TYPES(TString, TString, ui64, ui64, TInstant), \
-          NAMES("quoter", "resource", "skip", "size", "reportSec")) \
-    PROBE(ResourceReportAdd, GROUPS("QuoterResource", "RateAccounting", "RateAccountingReport"), \
-          TYPES(TString, TString, ui64, ui64, TInstant, TInstant), \
-          NAMES("quoter", "resource", "added", "size", "reportSec", "accountedSec")) \
-    PROBE(ResourceAccountingTooEarly, GROUPS("QuoterResource", "RateAccounting"), \
-          TYPES(TString, TString, TInstant, TInstant, TDuration), \
-          NAMES("quoter", "resource", "accountTillSec", "accountedSec", "accountPeriodMs")) \
-    PROBE(ResourceAccountingNoData, GROUPS("QuoterResource", "RateAccounting"), \
-          TYPES(TString, TString, TInstant, TInstant, TDuration), \
-          NAMES("quoter", "resource", "historyEndSec", "accountedSec", "maxBillingPeriodMs")) \
-    PROBE(ResourceAccountingSend, GROUPS("QuoterResource", "RateAccounting"), \
-          TYPES(TString, TString, TInstant, TInstant), \
-          NAMES("quoter", "resource", "accountTillSec", "accountedSec")) \
-                                                                        \
+    PROBE(ResourceBillSend, GROUPS("QuoterResource", "RateAccounting"), \ 
+          TYPES(TString, TString, TString, ui64, TInstant, TInstant, TString, TString, TString, TString, TString, TString), \ 
+          NAMES("quoter", "resource", "category", "quantity", "billStartSec", "billEndSec", "version", "schema", "cloudId", "folderId", "resourceId", "sourceId")) \ 
+    PROBE(ResourceBillAdd, GROUPS("QuoterResource", "RateAccounting"), \ 
+          TYPES(TString, TString, TString, TInstant, TInstant, TDuration, double, double), \ 
+          NAMES("quoter", "resource", "category", "accumulatedSec", "accountSec", "accDeltaMs", "quantity", "value")) \ 
+    PROBE(ResourceAccountConfigure, GROUPS("QuoterResource", "RateAccounting"), \ 
+          TYPES(TString, TString, double, double, double, TInstant, double, double, double, TInstant), \ 
+          NAMES("quoter", "resource", "provisionedRate", "provisionedBurst", "provisionedAvail", "provisionedLastSec", "onDemandRate", "onDemandBurst", "onDemandAvail", "onDemandLastSec")) \ 
+    PROBE(ResourceAccount, GROUPS("QuoterResource", "RateAccounting"), \ 
+          TYPES(TString, TString, TInstant, double, double, double, double, double, double, double, double, double, double), \ 
+          NAMES("quoter", "resource", "accountSec", "provisionedAndOnDemand", "provisioned", "onDemand", "overshoot", "provisionedRate", "provisionedBurst", "provisionedAvail", "onDemandRate", "onDemandBurst", "onDemandAvail")) \ 
+    PROBE(ResourceReportDedup, GROUPS("QuoterResource", "RateAccounting", "RateAccountingReport"), \ 
+          TYPES(TString, TString, ui64, ui64, TInstant), \ 
+          NAMES("quoter", "resource", "skip", "size", "reportSec")) \ 
+    PROBE(ResourceReportDedupFull, GROUPS("QuoterResource", "RateAccounting", "RateAccountingReport"), \ 
+          TYPES(TString, TString, ui64, ui64, TInstant), \ 
+          NAMES("quoter", "resource", "skip", "size", "reportSec")) \ 
+    PROBE(ResourceReportAdd, GROUPS("QuoterResource", "RateAccounting", "RateAccountingReport"), \ 
+          TYPES(TString, TString, ui64, ui64, TInstant, TInstant), \ 
+          NAMES("quoter", "resource", "added", "size", "reportSec", "accountedSec")) \ 
+    PROBE(ResourceAccountingTooEarly, GROUPS("QuoterResource", "RateAccounting"), \ 
+          TYPES(TString, TString, TInstant, TInstant, TDuration), \ 
+          NAMES("quoter", "resource", "accountTillSec", "accountedSec", "accountPeriodMs")) \ 
+    PROBE(ResourceAccountingNoData, GROUPS("QuoterResource", "RateAccounting"), \ 
+          TYPES(TString, TString, TInstant, TInstant, TDuration), \ 
+          NAMES("quoter", "resource", "historyEndSec", "accountedSec", "maxBillingPeriodMs")) \ 
+    PROBE(ResourceAccountingSend, GROUPS("QuoterResource", "RateAccounting"), \ 
+          TYPES(TString, TString, TInstant, TInstant), \ 
+          NAMES("quoter", "resource", "accountTillSec", "accountedSec")) \ 
+                                                                        \ 
     PROBE(SessionProcess, GROUPS("QuoterSession"),                      \
           TYPES(TString, TString, TActorIdParam, TInstant, bool),       \
           NAMES("quoter", "resource", "session", "timestampSec", "active")) \
diff --git a/ydb/core/kesus/tablet/quoter_resource_tree.cpp b/ydb/core/kesus/tablet/quoter_resource_tree.cpp
index 3f9d6e5653..a23302841e 100644
--- a/ydb/core/kesus/tablet/quoter_resource_tree.cpp
+++ b/ydb/core/kesus/tablet/quoter_resource_tree.cpp
@@ -1,5 +1,5 @@
 #include "quoter_resource_tree.h"
-
+ 
 #include "probes.h"
 
 #include <ydb/core/base/path.h>
@@ -160,7 +160,7 @@ public:
     bool ValidateProps(const NKikimrKesus::TStreamingQuoterResource& props, TString& errorMessage) override;
 
     void CalcParameters() override;
-    void CalcParametersForAccounting();
+    void CalcParametersForAccounting(); 
 
     THolder<TQuoterSession> DoCreateSession(const NActors::TActorId& clientId) override;
 
@@ -212,13 +212,13 @@ public:
 
     void RemoveChild(TQuoterResourceTree* child) override;
 
-    TInstant Report(const NActors::TActorId& clientId, ui64 resourceId, TInstant start, TDuration interval, const double* values, size_t size, TTickProcessorQueue& queue, TInstant now);
-    void RunAccounting();
-
+    TInstant Report(const NActors::TActorId& clientId, ui64 resourceId, TInstant start, TDuration interval, const double* values, size_t size, TTickProcessorQueue& queue, TInstant now); 
+    void RunAccounting(); 
+ 
 private:
     double MaxUnitsPerSecond = 0.0;
-    double PrefetchCoefficient = 0.0;
-    double PrefetchWatermark = 0.0;
+    double PrefetchCoefficient = 0.0; 
+    double PrefetchWatermark = 0.0; 
     ui32 Weight = 1;
     TDuration TickSize;
     ui64 ActiveChildrenWeight = 0;
@@ -233,14 +233,14 @@ private:
     bool Active = false;
     THierarchicalDRRResourceConsumer* CurrentActiveChild = nullptr;
     size_t ActiveChildrenCount = 0;
-
-    THolder<TRateAccounting> RateAccounting;
-    bool ActiveAccounting = false;
+ 
+    THolder<TRateAccounting> RateAccounting; 
+    bool ActiveAccounting = false; 
 };
 
-THolder<TQuoterResourceTree> CreateResource(ui64 resourceId, ui64 parentId, NActors::TActorId kesus, const IBillSink::TPtr& billSink, const NKikimrKesus::TStreamingQuoterResource& props) {
+THolder<TQuoterResourceTree> CreateResource(ui64 resourceId, ui64 parentId, NActors::TActorId kesus, const IBillSink::TPtr& billSink, const NKikimrKesus::TStreamingQuoterResource& props) { 
     Y_VERIFY(resourceId != parentId);
-    return MakeHolder<THierarhicalDRRQuoterResourceTree>(resourceId, parentId, kesus, billSink, props);
+    return MakeHolder<THierarhicalDRRQuoterResourceTree>(resourceId, parentId, kesus, billSink, props); 
 }
 
 // Session in case of hierarchical DRR algorithm.
@@ -260,7 +260,7 @@ public:
     }
 
     void UpdateConsumptionState(bool consume, double amount, TTickProcessorQueue& queue, TInstant now) override;
-    TInstant Account(TInstant start, TDuration interval, const double* values, size_t size, TTickProcessorQueue& queue, TInstant now) override;
+    TInstant Account(TInstant start, TDuration interval, const double* values, size_t size, TTickProcessorQueue& queue, TInstant now) override; 
     void DoProcess(TTickProcessorQueue& queue, TInstant now) override;
 
     void ScheduleNextTick(TTickProcessorQueue& queue, TInstant now);
@@ -383,10 +383,10 @@ void THierarhicalDRRQuoterSession::UpdateConsumptionState(bool consume, double a
     }
 }
 
-TInstant THierarhicalDRRQuoterSession::Account(TInstant start, TDuration interval, const double* values, size_t size, TTickProcessorQueue& queue, TInstant now) {
-    return GetResource()->Report(ClientId, GetResource()->GetResourceId(), start, interval, values, size, queue, now);
-}
-
+TInstant THierarhicalDRRQuoterSession::Account(TInstant start, TDuration interval, const double* values, size_t size, TTickProcessorQueue& queue, TInstant now) { 
+    return GetResource()->Report(ClientId, GetResource()->GetResourceId(), start, interval, values, size, queue, now); 
+} 
+ 
 void THierarhicalDRRQuoterSession::SendAvailableResource() {
     if (FreeResource >= GetResource()->GetResourceFillingEpsilon()) {
         if (AmountRequested >= GetResource()->GetResourceFillingEpsilon()) {
@@ -462,11 +462,11 @@ void TQuoterSession::AddAllocatedCounter(double spent) {
     } while (resource != nullptr);
 }
 
-TQuoterResourceTree::TQuoterResourceTree(ui64 resourceId, ui64 parentId, NActors::TActorId kesus, const IBillSink::TPtr& billSink, const NKikimrKesus::TStreamingQuoterResource& props)
+TQuoterResourceTree::TQuoterResourceTree(ui64 resourceId, ui64 parentId, NActors::TActorId kesus, const IBillSink::TPtr& billSink, const NKikimrKesus::TStreamingQuoterResource& props) 
     : ResourceId(resourceId)
     , ParentId(parentId)
-    , Kesus(kesus)
-    , BillSink(billSink)
+    , Kesus(kesus) 
+    , BillSink(billSink) 
     , Props(props)
     , EffectiveProps(props)
 {
@@ -501,7 +501,7 @@ bool TQuoterResourceTree::Update(const NKikimrKesus::TStreamingQuoterResource& p
 }
 
 bool TQuoterResourceTree::ValidateProps(const NKikimrKesus::TStreamingQuoterResource& props, TString& errorMessage) {
-    Y_UNUSED(props, errorMessage);
+    Y_UNUSED(props, errorMessage); 
     return true;
 }
 
@@ -511,7 +511,7 @@ void TQuoterResourceTree::CalcParameters() {
         ResourceLevel = Parent->ResourceLevel + 1;
     }
 
-    // Recurse into children
+    // Recurse into children 
     for (TQuoterResourceTree* child : Children) {
         child->CalcParameters();
     }
@@ -579,45 +579,45 @@ bool THierarhicalDRRQuoterResourceTree::ValidateProps(const NKikimrKesus::TStrea
     const auto& hdrrConfig = props.GetHierarhicalDRRResourceConfig();
     const double maxUnitsPerSecond = hdrrConfig.GetMaxUnitsPerSecond() ?
         hdrrConfig.GetMaxUnitsPerSecond() : hdrrConfig.GetSpeedSettings().GetMaxUnitsPerSecond();
-    if (!std::isfinite(maxUnitsPerSecond)) {
-        errorMessage = "MaxUnitsPerSecond must be finite.";
-        return false;
-    }
+    if (!std::isfinite(maxUnitsPerSecond)) { 
+        errorMessage = "MaxUnitsPerSecond must be finite."; 
+        return false; 
+    } 
     if (maxUnitsPerSecond < 0.0) {
         errorMessage = "MaxUnitsPerSecond can't be less than 0.";
         return false;
     }
 
-    // Validate prefetch settings
-    const double prefetchCoefficient = hdrrConfig.GetPrefetchCoefficient();
-    if (!std::isfinite(prefetchCoefficient)) {
-        errorMessage = "PrefetchCoefficient must be finite.";
-        return false;
-    }
-    const double prefetchWatermark = hdrrConfig.GetPrefetchWatermark();
-    if (!std::isfinite(prefetchWatermark)) {
-        errorMessage = "PrefetchWatermark must be finite.";
-        return false;
-    }
-    if (prefetchWatermark < 0.0) {
-        errorMessage = "PrefetchWatermark can't be less than 0.";
-        return false;
-    }
-    if (prefetchWatermark > 1.0) {
-        errorMessage = "PrefetchWatermark can't be greater than 1.";
-        return false;
-    }
-
+    // Validate prefetch settings 
+    const double prefetchCoefficient = hdrrConfig.GetPrefetchCoefficient(); 
+    if (!std::isfinite(prefetchCoefficient)) { 
+        errorMessage = "PrefetchCoefficient must be finite."; 
+        return false; 
+    } 
+    const double prefetchWatermark = hdrrConfig.GetPrefetchWatermark(); 
+    if (!std::isfinite(prefetchWatermark)) { 
+        errorMessage = "PrefetchWatermark must be finite."; 
+        return false; 
+    } 
+    if (prefetchWatermark < 0.0) { 
+        errorMessage = "PrefetchWatermark can't be less than 0."; 
+        return false; 
+    } 
+    if (prefetchWatermark > 1.0) { 
+        errorMessage = "PrefetchWatermark can't be greater than 1."; 
+        return false; 
+    } 
+ 
     if (!ParentId && !maxUnitsPerSecond) {
         errorMessage = "No MaxUnitsPerSecond parameter in root resource.";
         return false;
     }
-
-    if (!TRateAccounting::ValidateProps(props, errorMessage)) {
-        return false;
-    }
-
-    return TQuoterResourceTree::ValidateProps(props, errorMessage);
+ 
+    if (!TRateAccounting::ValidateProps(props, errorMessage)) { 
+        return false; 
+    } 
+ 
+    return TQuoterResourceTree::ValidateProps(props, errorMessage); 
 }
 
 void THierarhicalDRRQuoterResourceTree::CalcParameters() {
@@ -626,7 +626,7 @@ void THierarhicalDRRQuoterResourceTree::CalcParameters() {
         Props.MutableHierarhicalDRRResourceConfig()->SetMaxUnitsPerSecond(Props.GetHierarhicalDRRResourceConfig().GetSpeedSettings().GetMaxUnitsPerSecond());
     }
 
-    // speed settings
+    // speed settings 
     THierarhicalDRRQuoterResourceTree* const parent = GetParent();
     const auto& config = GetProps().GetHierarhicalDRRResourceConfig();
     if (config.GetMaxUnitsPerSecond()) {
@@ -639,18 +639,18 @@ void THierarhicalDRRQuoterResourceTree::CalcParameters() {
         MaxUnitsPerSecond = parent->MaxUnitsPerSecond;
     }
 
-    // prefetch settings
-    if (config.GetPrefetchCoefficient()) {
-        PrefetchCoefficient = config.GetPrefetchCoefficient();
-    } else if (parent) {
-        PrefetchCoefficient = parent->PrefetchCoefficient;
-    }
-    if (config.GetPrefetchWatermark()) {
-        PrefetchWatermark = config.GetPrefetchWatermark();
-    } else if (parent) {
-        PrefetchWatermark = parent->PrefetchWatermark;
-    }
-
+    // prefetch settings 
+    if (config.GetPrefetchCoefficient()) { 
+        PrefetchCoefficient = config.GetPrefetchCoefficient(); 
+    } else if (parent) { 
+        PrefetchCoefficient = parent->PrefetchCoefficient; 
+    } 
+    if (config.GetPrefetchWatermark()) { 
+        PrefetchWatermark = config.GetPrefetchWatermark(); 
+    } else if (parent) { 
+        PrefetchWatermark = parent->PrefetchWatermark; 
+    } 
+ 
     ResourceTickQuantum = MaxUnitsPerSecond >= 0.0 ? MaxUnitsPerSecond / TICKS_PER_SECOND : 0.0;
     ResourceFillingEpsilon = ResourceTickQuantum * EPSILON_COEFFICIENT;
     TickSize = TDuration::Seconds(1) / TICKS_PER_SECOND;
@@ -671,72 +671,72 @@ void THierarhicalDRRQuoterResourceTree::CalcParameters() {
     effectiveConfig->SetMaxUnitsPerSecond(MaxUnitsPerSecond);
     effectiveConfig->SetWeight(Weight);
     effectiveConfig->SetMaxBurstSizeCoefficient(1);
-    effectiveConfig->SetPrefetchCoefficient(PrefetchCoefficient);
-    effectiveConfig->SetPrefetchWatermark(PrefetchWatermark);
+    effectiveConfig->SetPrefetchCoefficient(PrefetchCoefficient); 
+    effectiveConfig->SetPrefetchWatermark(PrefetchWatermark); 
 
     SetLimitCounter();
 
-    CalcParametersForAccounting();
-
+    CalcParametersForAccounting(); 
+ 
     TQuoterResourceTree::CalcParameters(); // recalc for children
 }
 
-void THierarhicalDRRQuoterResourceTree::CalcParametersForAccounting() {
-    const auto* accCfgParent = Parent ? &Parent->GetEffectiveProps().GetAccountingConfig() : nullptr;
-    auto* accCfg = EffectiveProps.MutableAccountingConfig();
-
-    // Calc rate accouting effective props
-    if (!accCfg->GetReportPeriodMs()) {
-        accCfg->SetReportPeriodMs(accCfgParent ? accCfgParent->GetReportPeriodMs() : 5000);
-    }
-
-    if (!accCfg->GetAccountPeriodMs()) {
-        accCfg->SetAccountPeriodMs(accCfgParent ? accCfgParent->GetAccountPeriodMs() : 1000);
-    }
-
-    if (!accCfg->GetCollectPeriodSec()) {
-        accCfg->SetCollectPeriodSec(accCfgParent ? accCfgParent->GetCollectPeriodSec() : 30);
-    }
-
-    if (!accCfg->GetProvisionedCoefficient()) {
-        accCfg->SetProvisionedCoefficient(accCfgParent ? accCfgParent->GetProvisionedCoefficient() : 60);
-    }
-
-    if (!accCfg->GetOvershootCoefficient()) {
-        accCfg->SetOvershootCoefficient(accCfgParent ? accCfgParent->GetOvershootCoefficient() : 1.1);
-    }
-
-    auto calcMetricsParams = [] (auto* cfg, const auto* parent) {
-        // NOTE: `Enabled` is not inherited, skipped here
-        if (!cfg->GetBillingPeriodSec()) {
-            cfg->SetBillingPeriodSec(parent ? parent->GetBillingPeriodSec() : 60);
-        }
-        if (!cfg->GetVersion() && parent) { cfg->SetVersion(parent->GetVersion()); }
-        if (!cfg->GetSchema() && parent) { cfg->SetSchema(parent->GetSchema()); }
-        if (!cfg->GetCloudId() && parent) { cfg->SetCloudId(parent->GetCloudId()); }
-        if (!cfg->GetFolderId() && parent) { cfg->SetFolderId(parent->GetFolderId()); }
-        if (!cfg->GetResourceId() && parent) { cfg->SetResourceId(parent->GetResourceId()); }
-        if (!cfg->GetSourceId() && parent) { cfg->SetSourceId(parent->GetSourceId()); }
-        if (cfg->GetTags().empty() && parent) { *cfg->MutableTags() = parent->GetTags(); }
-    };
-    calcMetricsParams(accCfg->MutableProvisioned(), accCfgParent ? &accCfgParent->GetProvisioned() : nullptr);
-    calcMetricsParams(accCfg->MutableOnDemand(), accCfgParent ? &accCfgParent->GetOnDemand() : nullptr);
-    calcMetricsParams(accCfg->MutableOvershoot(), accCfgParent ? &accCfgParent->GetOvershoot() : nullptr);
-
-    // Create/update/delete rate accounting
-    if (accCfg->GetEnabled()) {
-        if (!RateAccounting) { // create
-            RateAccounting.Reset(new TRateAccounting(Kesus, BillSink, EffectiveProps, QuoterPath));
-            RateAccounting->SetResourceCounters(Counters.ResourceCounters);
-        } else { // update
-            RateAccounting->Configure(EffectiveProps);
-        }
-    } else if (RateAccounting) { // delete
-        RateAccounting->Stop();
-        RateAccounting.Destroy();
-    }
-}
-
+void THierarhicalDRRQuoterResourceTree::CalcParametersForAccounting() { 
+    const auto* accCfgParent = Parent ? &Parent->GetEffectiveProps().GetAccountingConfig() : nullptr; 
+    auto* accCfg = EffectiveProps.MutableAccountingConfig(); 
+ 
+    // Calc rate accouting effective props 
+    if (!accCfg->GetReportPeriodMs()) { 
+        accCfg->SetReportPeriodMs(accCfgParent ? accCfgParent->GetReportPeriodMs() : 5000); 
+    } 
+ 
+    if (!accCfg->GetAccountPeriodMs()) { 
+        accCfg->SetAccountPeriodMs(accCfgParent ? accCfgParent->GetAccountPeriodMs() : 1000); 
+    } 
+ 
+    if (!accCfg->GetCollectPeriodSec()) { 
+        accCfg->SetCollectPeriodSec(accCfgParent ? accCfgParent->GetCollectPeriodSec() : 30); 
+    } 
+ 
+    if (!accCfg->GetProvisionedCoefficient()) { 
+        accCfg->SetProvisionedCoefficient(accCfgParent ? accCfgParent->GetProvisionedCoefficient() : 60); 
+    } 
+ 
+    if (!accCfg->GetOvershootCoefficient()) { 
+        accCfg->SetOvershootCoefficient(accCfgParent ? accCfgParent->GetOvershootCoefficient() : 1.1); 
+    } 
+ 
+    auto calcMetricsParams = [] (auto* cfg, const auto* parent) { 
+        // NOTE: `Enabled` is not inherited, skipped here 
+        if (!cfg->GetBillingPeriodSec()) { 
+            cfg->SetBillingPeriodSec(parent ? parent->GetBillingPeriodSec() : 60); 
+        } 
+        if (!cfg->GetVersion() && parent) { cfg->SetVersion(parent->GetVersion()); } 
+        if (!cfg->GetSchema() && parent) { cfg->SetSchema(parent->GetSchema()); } 
+        if (!cfg->GetCloudId() && parent) { cfg->SetCloudId(parent->GetCloudId()); } 
+        if (!cfg->GetFolderId() && parent) { cfg->SetFolderId(parent->GetFolderId()); } 
+        if (!cfg->GetResourceId() && parent) { cfg->SetResourceId(parent->GetResourceId()); } 
+        if (!cfg->GetSourceId() && parent) { cfg->SetSourceId(parent->GetSourceId()); } 
+        if (cfg->GetTags().empty() && parent) { *cfg->MutableTags() = parent->GetTags(); } 
+    }; 
+    calcMetricsParams(accCfg->MutableProvisioned(), accCfgParent ? &accCfgParent->GetProvisioned() : nullptr); 
+    calcMetricsParams(accCfg->MutableOnDemand(), accCfgParent ? &accCfgParent->GetOnDemand() : nullptr); 
+    calcMetricsParams(accCfg->MutableOvershoot(), accCfgParent ? &accCfgParent->GetOvershoot() : nullptr); 
+ 
+    // Create/update/delete rate accounting 
+    if (accCfg->GetEnabled()) { 
+        if (!RateAccounting) { // create 
+            RateAccounting.Reset(new TRateAccounting(Kesus, BillSink, EffectiveProps, QuoterPath)); 
+            RateAccounting->SetResourceCounters(Counters.ResourceCounters); 
+        } else { // update 
+            RateAccounting->Configure(EffectiveProps); 
+        } 
+    } else if (RateAccounting) { // delete 
+        RateAccounting->Stop(); 
+        RateAccounting.Destroy(); 
+    } 
+} 
+ 
 void THierarhicalDRRQuoterResourceTree::RemoveChild(TQuoterResourceTree* childBase) {
     THierarhicalDRRQuoterResourceTree* child = static_cast<THierarhicalDRRQuoterResourceTree*>(childBase);
     if (child->Active) {
@@ -829,48 +829,48 @@ void THierarhicalDRRQuoterResourceTree::DoProcess(TTickProcessorQueue& queue, TI
         }
 
         DeactivateIfFull(now);
-    }
-
-    if (ActiveAccounting) {
-        RunAccounting();
-    }
-
-    if (Active || ActiveAccounting) {
-        ScheduleNextTick(queue, now);
-    }
-}
-
-TInstant THierarhicalDRRQuoterResourceTree::Report(
-    const NActors::TActorId& clientId,
-    ui64 resourceId,
-    TInstant start,
-    TDuration interval,
-    const double* values,
-    size_t size,
-    TTickProcessorQueue& queue,
-    TInstant now)
-{
-    if (RateAccounting) {
-        TInstant result = RateAccounting->Report(clientId, resourceId, start, interval, values, size);
-        ActiveAccounting = true;
-        ScheduleNextTick(queue, now);
-        return result;
-    } else if (GetParent()) {
-        return GetParent()->Report(clientId, resourceId, start, interval, values, size, queue, now);
-    } else {
-        // We have no rate accounting enabled -- skip data
-        return TInstant::Zero();
-    }
-}
-
-void THierarhicalDRRQuoterResourceTree::RunAccounting() {
-    if (RateAccounting) {
-        ActiveAccounting = RateAccounting->RunAccounting();
-    } else {
-        ActiveAccounting = false;
-    }
-}
-
+    } 
+
+    if (ActiveAccounting) { 
+        RunAccounting(); 
+    }
+ 
+    if (Active || ActiveAccounting) { 
+        ScheduleNextTick(queue, now); 
+    } 
+}
+
+TInstant THierarhicalDRRQuoterResourceTree::Report( 
+    const NActors::TActorId& clientId, 
+    ui64 resourceId, 
+    TInstant start, 
+    TDuration interval, 
+    const double* values, 
+    size_t size, 
+    TTickProcessorQueue& queue, 
+    TInstant now) 
+{ 
+    if (RateAccounting) { 
+        TInstant result = RateAccounting->Report(clientId, resourceId, start, interval, values, size); 
+        ActiveAccounting = true; 
+        ScheduleNextTick(queue, now); 
+        return result; 
+    } else if (GetParent()) { 
+        return GetParent()->Report(clientId, resourceId, start, interval, values, size, queue, now); 
+    } else { 
+        // We have no rate accounting enabled -- skip data 
+        return TInstant::Zero(); 
+    } 
+} 
+ 
+void THierarhicalDRRQuoterResourceTree::RunAccounting() { 
+    if (RateAccounting) { 
+        ActiveAccounting = RateAccounting->RunAccounting(); 
+    } else { 
+        ActiveAccounting = false; 
+    } 
+} 
+ 
 void THierarhicalDRRQuoterResourceTree::AddActiveChild(THierarchicalDRRResourceConsumer* child, TTickProcessorQueue& queue, TInstant now) {
     UpdateActiveTime(now);
     if (!HasActiveChildren()) {
@@ -931,9 +931,9 @@ THolder<TQuoterSession> THierarhicalDRRQuoterResourceTree::DoCreateSession(const
 
 void THierarhicalDRRQuoterResourceTree::SetResourceCounters(TIntrusivePtr<NMonitoring::TDynamicCounters> resourceCounters) {
     TQuoterResourceTree::SetResourceCounters(std::move(resourceCounters));
-    if (RateAccounting) {
-        RateAccounting->SetResourceCounters(Counters.ResourceCounters);
-    }
+    if (RateAccounting) { 
+        RateAccounting->SetResourceCounters(Counters.ResourceCounters); 
+    } 
     SetLimitCounter();
 }
 
@@ -951,7 +951,7 @@ bool TQuoterResources::Exists(ui64 resourceId) const {
 }
 
 TQuoterResourceTree* TQuoterResources::LoadResource(ui64 resourceId, ui64 parentId, const NKikimrKesus::TStreamingQuoterResource& props) {
-    auto resource = CreateResource(resourceId, parentId, Kesus, BillSink, props);
+    auto resource = CreateResource(resourceId, parentId, Kesus, BillSink, props); 
     Y_VERIFY(!Exists(resource->GetResourceId()),
          "Resource \"%s\" has duplicated id: %" PRIu64, resource->GetPath().c_str(), resourceId);
     Y_VERIFY(!props.GetResourcePath().empty(),
@@ -1000,7 +1000,7 @@ TQuoterResourceTree* TQuoterResources::AddResource(ui64 resourceId, const NKikim
     resProps.SetResourceId(resourceId);
     resProps.SetResourcePath(canonPath);
     const ui64 parentId = parent ? parent->GetResourceId() : 0;
-    THolder<TQuoterResourceTree> resource = CreateResource(resourceId, parentId, Kesus, BillSink, resProps);
+    THolder<TQuoterResourceTree> resource = CreateResource(resourceId, parentId, Kesus, BillSink, resProps); 
     if (!resource->ValidateProps(resProps, errorMessage)) {
         return nullptr;
     }
@@ -1055,11 +1055,11 @@ bool TQuoterResources::DeleteResource(TQuoterResourceTree* resource, TString& er
     return true;
 }
 
-void TQuoterResources::SetupBilling(NActors::TActorId kesus, const IBillSink::TPtr& billSink) {
-    Kesus = kesus;
-    BillSink = billSink;
-}
-
+void TQuoterResources::SetupBilling(NActors::TActorId kesus, const IBillSink::TPtr& billSink) { 
+    Kesus = kesus; 
+    BillSink = billSink; 
+} 
+ 
 void TQuoterResources::ConstructTrees() {
     // connect with parents
     std::vector<TQuoterResourceTree*> roots;
diff --git a/ydb/core/kesus/tablet/quoter_resource_tree.h b/ydb/core/kesus/tablet/quoter_resource_tree.h
index bc28e518c3..7104b09a12 100644
--- a/ydb/core/kesus/tablet/quoter_resource_tree.h
+++ b/ydb/core/kesus/tablet/quoter_resource_tree.h
@@ -1,10 +1,10 @@
 #pragma once
-
-#include "rate_accounting.h"
-
+ 
+#include "rate_accounting.h" 
+ 
 #include <ydb/core/protos/kesus.pb.h>
 
-#include <library/cpp/actors/core/actor.h>
+#include <library/cpp/actors/core/actor.h> 
 #include <library/cpp/monlib/dynamic_counters/counters.h>
 
 #include <util/datetime/base.h>
@@ -17,7 +17,7 @@
 #include <queue>
 
 namespace NKikimr {
-
+ 
 namespace NKesus {
 
 using TQuoterSessionId = std::pair<NActors::TActorId, ui64>; // client id, resource id
@@ -143,9 +143,9 @@ public:
     // Reaction for quoter runtime events: TEvSubscribeOnResources and TEvUpdateConsumptionState.
     virtual void UpdateConsumptionState(bool consume, double amount, TTickProcessorQueue& queue, TInstant now) = 0;
 
-    // Reaction for quoter runtime event TEvAccountResources.
-    virtual TInstant Account(TInstant start, TDuration interval, const double* values, size_t size, TTickProcessorQueue& queue, TInstant now) = 0;
-
+    // Reaction for quoter runtime event TEvAccountResources. 
+    virtual TInstant Account(TInstant start, TDuration interval, const double* values, size_t size, TTickProcessorQueue& queue, TInstant now) = 0; 
+ 
     // Close session when resource is deleted.
     virtual void CloseSession(Ydb::StatusIds::StatusCode status, const TString& reason);
 
@@ -194,7 +194,7 @@ protected:
 // Common interface for hierarchical quoter resource.
 class TQuoterResourceTree : public TTickProcessor {
 public:
-    TQuoterResourceTree(ui64 resourceId, ui64 parentId, NActors::TActorId kesus, const IBillSink::TPtr& billSink, const NKikimrKesus::TStreamingQuoterResource& props);
+    TQuoterResourceTree(ui64 resourceId, ui64 parentId, NActors::TActorId kesus, const IBillSink::TPtr& billSink, const NKikimrKesus::TStreamingQuoterResource& props); 
     TQuoterResourceTree(TQuoterResourceTree&&) = delete;
     TQuoterResourceTree(const TQuoterResourceTree&) = delete;
 
@@ -313,8 +313,8 @@ public:
 protected:
     const ui64 ResourceId;
     const ui64 ParentId;
-    NActors::TActorId Kesus;
-    IBillSink::TPtr BillSink;
+    NActors::TActorId Kesus; 
+    IBillSink::TPtr BillSink; 
     TString QuoterPath;
     size_t ResourceLevel = 0;
     TQuoterResourceTree* Parent = nullptr;
@@ -358,7 +358,7 @@ public:
     void EnableDetailedCountersMode(bool enable = true);
     void FillCounters(NKikimrKesus::TEvGetQuoterResourceCountersResult& counters);
 
-    void SetupBilling(NActors::TActorId kesus, const IBillSink::TPtr& billSink);
+    void SetupBilling(NActors::TActorId kesus, const IBillSink::TPtr& billSink); 
     void ConstructTrees(); // Constructs all trees during initialization.
 
     size_t GetResourcesCount() const {
@@ -384,7 +384,7 @@ public:
 
     void SetQuoterPath(const TString& quoterPath);
 
-
+ 
 private:
     TQuoterResourceTree* FindPathImpl(const TString& resourcePath); // doesn't canonize path
 
@@ -393,8 +393,8 @@ private:
 
 private:
     TString QuoterPath;
-    NActors::TActorId Kesus;
-    IBillSink::TPtr BillSink;
+    NActors::TActorId Kesus; 
+    IBillSink::TPtr BillSink; 
 
     THashMap<ui64, THolder<TQuoterResourceTree>> ResourcesById;
     THashMap<TString, TQuoterResourceTree*> ResourcesByPath;
diff --git a/ydb/core/kesus/tablet/quoter_runtime.cpp b/ydb/core/kesus/tablet/quoter_runtime.cpp
index d00c10739d..3932e94f0b 100644
--- a/ydb/core/kesus/tablet/quoter_runtime.cpp
+++ b/ydb/core/kesus/tablet/quoter_runtime.cpp
@@ -165,37 +165,37 @@ void TKesusTablet::Handle(TEvKesus::TEvUpdateConsumptionState::TPtr& ev) {
     HandleQuoterTick();
 }
 
-void TKesusTablet::Handle(TEvKesus::TEvAccountResources::TPtr& ev) {
-    auto ack = MakeHolder<TEvKesus::TEvAccountResourcesAck>();
-    const TActorId clientId = ActorIdFromProto(ev->Get()->Record.GetActorID());
-    const TInstant now = TActivationContext::Now();
-    TTickProcessorQueue queue;
-    for (const NKikimrKesus::TEvAccountResources::TResourceInfo& resource : ev->Get()->Record.GetResourcesInfo()) {
-        auto* result = ack->Record.AddResourcesInfo();
-        result->SetResourceId(resource.GetResourceId());
-        if (TQuoterSession* session = QuoterResources.FindSession(clientId, resource.GetResourceId())) {
-            TInstant accepted = session->Account(
-                TInstant::MicroSeconds(resource.GetStartUs()),
-                TDuration::MicroSeconds(resource.GetIntervalUs()),
-                resource.GetAmount().data(),
-                resource.GetAmount().size(),
-                queue, now);
-            result->SetAcceptedUs(accepted.MicroSeconds());
-        } else {
-            TEvKesus::FillError(result->MutableStateNotification(), Ydb::StatusIds::BAD_SESSION, "No such session exists.");
-        }
-    }
-    QuoterTickProcessorQueue.Merge(std::move(queue));
-    TRACE_LOG_EVENT(TabletID(), "TEvAccountResourcesAck", ack->Record, ev->Sender, ev->Cookie);
-    Send(ev->Sender, std::move(ack), 0, ev->Cookie);
-
-    LOG_DEBUG_S(TActivationContext::AsActorContext(), NKikimrServices::KESUS_TABLET,
-        "[" << TabletID() << "] Account quoter resources (sender=" << ev->Sender
-            << ", cookie=" << ev->Cookie << ")");
-
-    HandleQuoterTick();
-}
-
+void TKesusTablet::Handle(TEvKesus::TEvAccountResources::TPtr& ev) { 
+    auto ack = MakeHolder<TEvKesus::TEvAccountResourcesAck>(); 
+    const TActorId clientId = ActorIdFromProto(ev->Get()->Record.GetActorID()); 
+    const TInstant now = TActivationContext::Now(); 
+    TTickProcessorQueue queue; 
+    for (const NKikimrKesus::TEvAccountResources::TResourceInfo& resource : ev->Get()->Record.GetResourcesInfo()) { 
+        auto* result = ack->Record.AddResourcesInfo(); 
+        result->SetResourceId(resource.GetResourceId()); 
+        if (TQuoterSession* session = QuoterResources.FindSession(clientId, resource.GetResourceId())) { 
+            TInstant accepted = session->Account( 
+                TInstant::MicroSeconds(resource.GetStartUs()), 
+                TDuration::MicroSeconds(resource.GetIntervalUs()), 
+                resource.GetAmount().data(), 
+                resource.GetAmount().size(), 
+                queue, now); 
+            result->SetAcceptedUs(accepted.MicroSeconds()); 
+        } else { 
+            TEvKesus::FillError(result->MutableStateNotification(), Ydb::StatusIds::BAD_SESSION, "No such session exists."); 
+        } 
+    } 
+    QuoterTickProcessorQueue.Merge(std::move(queue)); 
+    TRACE_LOG_EVENT(TabletID(), "TEvAccountResourcesAck", ack->Record, ev->Sender, ev->Cookie); 
+    Send(ev->Sender, std::move(ack), 0, ev->Cookie); 
+ 
+    LOG_DEBUG_S(TActivationContext::AsActorContext(), NKikimrServices::KESUS_TABLET, 
+        "[" << TabletID() << "] Account quoter resources (sender=" << ev->Sender 
+            << ", cookie=" << ev->Cookie << ")"); 
+ 
+    HandleQuoterTick(); 
+} 
+ 
 void TKesusTablet::Handle(TEvKesus::TEvResourcesAllocatedAck::TPtr& ev) {
     Y_UNUSED(ev);
 }
@@ -213,7 +213,7 @@ void TKesusTablet::ScheduleQuoterTick() {
 }
 
 void TKesusTablet::HandleQuoterTick() {
-    const NHPTimer::STime hpprev = GetCycleCountFast();
+    const NHPTimer::STime hpprev = GetCycleCountFast(); 
     NextQuoterTickTime = TInstant::Max();
     i64 processedTasks = 0;
     while (!QuoterTickProcessorQueue.Empty()) {
@@ -240,7 +240,7 @@ void TKesusTablet::HandleQuoterTick() {
     }
     ScheduleQuoterTick();
     QuoterResourceSessionsAccumulator.SendAll(TActivationContext::AsActorContext(), TabletID());
-    const NHPTimer::STime hpnow = GetCycleCountFast();
+    const NHPTimer::STime hpnow = GetCycleCountFast(); 
     *QuoterResources.GetCounters().ElapsedMicrosecOnResourceAllocation += NHPTimer::GetSeconds(hpnow - hpprev) * 1000000;
     if (processedTasks) {
         *QuoterResources.GetCounters().TickProcessorTasksProcessed += processedTasks;
diff --git a/ydb/core/kesus/tablet/rate_accounting.cpp b/ydb/core/kesus/tablet/rate_accounting.cpp
index 1459eafbc0..a9530eab7c 100644
--- a/ydb/core/kesus/tablet/rate_accounting.cpp
+++ b/ydb/core/kesus/tablet/rate_accounting.cpp
@@ -1,498 +1,498 @@
-#include "rate_accounting.h"
-
-#include "probes.h"
-
+#include "rate_accounting.h" 
+ 
+#include "probes.h" 
+ 
 #include <ydb/core/metering/metering.h>
 #include <ydb/core/util/token_bucket.h>
 #include <ydb/core/metering/time_grid.h>
 #include <ydb/core/metering/bill_record.h>
-
-#include <library/cpp/actors/core/hfunc.h>
-
-#include <util/string/builder.h>
-#include <util/generic/deque.h>
-
-LWTRACE_USING(KESUS_QUOTER_PROVIDER);
-
-namespace NKikimr {
-namespace NKesus {
-
-namespace {
-
-using namespace NActors;
-
-////////////////////////////////////////////////////////////////////////////////
-struct TEvPrivate {
-    enum EEv {
-        EvRunAccounting = EventSpaceBegin(TEvents::ES_PRIVATE),
-        EvConfigure,
-        EvCounters,
-        EvEnd
-    };
-
-    static_assert(EvEnd <= EventSpaceEnd(TKikimrEvents::ES_PRIVATE),
-        "expected EvEnd <= EventSpaceEnd(TKikimrEvents::ES_PRIVATE)");
-
-    struct TEvRunAccounting : public TEventLocal<TEvRunAccounting, EvRunAccounting> {
-        TInstant Time;
-        TConsumptionHistory History;
-
-        TEvRunAccounting(TInstant time, TConsumptionHistory&& history)
-            : Time(time)
-            , History(std::move(history))
-        {}
-    };
-
-    struct TEvConfigure : public TEventLocal<TEvConfigure, EvConfigure> {
-        TInstant ApplyAt;
-        NKikimrKesus::TStreamingQuoterResource Props;
-
-        TEvConfigure(TInstant applyAt, const NKikimrKesus::TStreamingQuoterResource& props)
-            : ApplyAt(applyAt)
-            , Props(props)
-        {}
-    };
-
-    struct TEvCounters : public TEventLocal<TEvCounters, EvCounters> {
-        TRateAccountingCounters Counters;
-
-        TEvCounters(const TRateAccountingCounters& counters)
-            : Counters(counters)
-        {}
-    };
-};
-
-////////////////////////////////////////////////////////////////////////////////
-inline NJson::TJsonMap ToJsonMap(const google::protobuf::Map<TString, TString>& o) {
-    NJson::TJsonMap m;
-    for (auto& [k, v] : o) {
-        m[k] = v;
-    }
-    return m;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-class TBillingMetric {
-    double Quantity = 0; // total consumption
-    TInstant LastBillTime; // start of last billing period
-    TInstant Accumulated; // start of accumulation `Quantity`
-
-    // Monitoring
-    NMonitoring::TDynamicCounters::TCounterPtr Billed;
-
-    // Configuration
-    NKikimrKesus::TAccountingConfig::TMetric Cfg;
-    TTimeGrid TimeGrid; // billing metric time grid
-    TString QuoterPath;
-    TString ResourcePath;
-    TString Category;
-    IBillSink::TPtr BillSink;
-
-public:
-    explicit TBillingMetric()
-        : TimeGrid(TDuration::Minutes(1))
-    {}
-
-    static TTimeGrid TimeGridForPeriod(int seconds) {
-        // Period must be in [2, 3600] seconds interval and be divisor of an hour
-        seconds = std::clamp(seconds, 2, 3600);
-        for (; 3600 % seconds != 0; seconds--) {}
-        return TTimeGrid(TDuration::Seconds(seconds));
-    }
-
-    void SetResourceCounters(const NMonitoring::TDynamicCounters::TCounterPtr& billed) {
-        Billed = billed;
-    }
-
-    void Configure(const NKikimrKesus::TAccountingConfig::TMetric& cfg,
-        const TString& quoterPath,
-        const TString& resourcePath,
-        const TString& category,
-        const IBillSink::TPtr& billSink)
-    {
-        if (cfg.GetBillingPeriodSec() != Cfg.GetBillingPeriodSec()) {
-            TimeGrid = TimeGridForPeriod(cfg.GetBillingPeriodSec());
-            ResetAccumulated(); // just reset data aligned with old grid (underbill is better than overbill)
-        }
-        Cfg = cfg;
-        QuoterPath = quoterPath;
-        ResourcePath = resourcePath;
-        Category = category;
-        BillSink = billSink;
-    }
-
-    void Add(double value, TInstant t, const NActors::TActorContext& ctx) {
-        SendBill(t, ctx);
-        if (!Accumulated) {
-            Accumulated = t;
-        }
-        Quantity += value;
-        LWPROBE(ResourceBillAdd,
-            QuoterPath,
-            ResourcePath,
-            Category,
-            Accumulated,
-            t,
-            t - Accumulated,
-            Quantity,
-            value);
-    }
-
-private:
-    void SendBill(TInstant t, const NActors::TActorContext& ctx) {
-        auto curr = TimeGrid.Get(t);
-        auto bill = TimeGrid.Get(Accumulated);
-        auto last = TimeGrid.Get(LastBillTime);
-        if ((LastBillTime && bill.Start <= last.End) || curr.Start <= bill.End) {
-            return; // too early to bill
-        }
-
-        LastBillTime = bill.Start;
-        ui64 BillQuantity = std::ceil(Quantity);
-        if (Billed) {
-            *Billed += BillQuantity;
-        }
-        if (Cfg.GetEnabled() && BillQuantity > 0) {
-            const TString id = TStringBuilder()
-                << ResourcePath
-                << "-" << Category
-                << "-" << bill.Start.Seconds()
-                << "-" << bill.End.Seconds();
-
-            const TBillRecord billRecord = TBillRecord()
-                .Id(id)
-                .SourceWt(TActivationContext::Now())
-                .Usage(TBillRecord::RequestUnits(BillQuantity, bill.Start, bill.End))
-                .Version(Cfg.GetVersion())
-                .Schema(Cfg.GetSchema())
-                .CloudId(Cfg.GetCloudId())
-                .FolderId(Cfg.GetFolderId())
-                .ResourceId(Cfg.GetResourceId())
-                .SourceId(Cfg.GetSourceId())
-                .Tags(ToJsonMap(Cfg.GetTags()));
-
-            LWPROBE(ResourceBillSend,
-                QuoterPath,
-                ResourcePath,
-                Category,
-                BillQuantity,
-                bill.Start,
-                bill.End,
-                billRecord.Version_,
-                billRecord.Schema_,
-                billRecord.CloudId_,
-                billRecord.FolderId_,
-                billRecord.ResourceId_,
-                billRecord.SourceId_);
-            BillSink->Send(ctx, billRecord);
-        }
-
-        ResetAccumulated();
-    }
-
-    void ResetAccumulated() {
-        Quantity = 0;
-        Accumulated = TInstant::Zero();
-    }
-};
-
-////////////////////////////////////////////////////////////////////////////////
-class TAccountingActor final: public TActor<TAccountingActor> {
-private:
-    // Accounting (aggregate history intervals and split consumption into billing categories)
-    TInstant Time; // current history replay time for token buckets
-    TTokenBucket ProvisionedBucket;
-    TTokenBucket OnDemandBucket;
-    TDeque<TAutoPtr<TEvPrivate::TEvConfigure>> ConfigQueue;
-
-    // Billing (actually make bill records and send'em to metering actor)
-    IBillSink::TPtr BillSink;
-    TString QuoterPath;
-    TString ResourcePath;
-    TBillingMetric Provisioned;
-    TBillingMetric OnDemand;
-    TBillingMetric Overshoot;
-
-    // Monitoring
-    TRateAccountingCounters Counters;
-public:
-    explicit TAccountingActor(const IBillSink::TPtr& billSink, const NKikimrKesus::TStreamingQuoterResource& props, const TString& quoterPath)
-        : TActor(&TThis::StateWork)
-        , BillSink(billSink)
-        , QuoterPath(quoterPath)
-        , ResourcePath(props.GetResourcePath())
-    {
-        Configure(props);
-    }
-
-    static constexpr NKikimrServices::TActivity::EType ActorActivityType() {
-        return NKikimrServices::TActivity::KESUS_ACCOUNTING_ACTOR;
-    }
-
-private:
-    STFUNC(StateWork) {
-        switch (ev->GetTypeRewrite()) {
-            hFunc(TEvPrivate::TEvConfigure, Handle);
-            hFunc(TEvPrivate::TEvCounters, Handle);
-            HFunc(TEvPrivate::TEvRunAccounting, Handle);
-            cFunc(TEvents::TEvPoisonPill::EventType, PassAway);
-        }
-    }
-
-    void Handle(const TEvPrivate::TEvConfigure::TPtr& ev) {
-        // Delay config apply since we work with history here
-        ConfigQueue.emplace_back(ev.Get()->Release());
-    }
-
-    void Handle(const TEvPrivate::TEvCounters::TPtr& ev) {
-        auto* e = ev->Get();
-        Counters = e->Counters;
-        Provisioned.SetResourceCounters(Counters.Provisioned);
-        OnDemand.SetResourceCounters(Counters.OnDemand);
-        Overshoot.SetResourceCounters(Counters.Overshoot);
-    }
-
-    void ProcessConfigQueue() {
-        while (!ConfigQueue.empty() && ConfigQueue.front()->ApplyAt <= Time) {
-            Configure(ConfigQueue.front()->Props);
-            ConfigQueue.pop_front();
-        }
-    }
-
-    void Configure(const NKikimrKesus::TStreamingQuoterResource& props) {
-        const auto& accCfg = props.GetAccountingConfig();
-        const auto& resCfg = props.GetHierarhicalDRRResourceConfig();
-        ProvisionedBucket.SetRate(accCfg.GetProvisionedUnitsPerSecond());
-        ProvisionedBucket.SetCapacity(accCfg.GetProvisionedUnitsPerSecond() * accCfg.GetProvisionedCoefficient());
-        OnDemandBucket.SetRate(resCfg.GetMaxUnitsPerSecond());
-        OnDemandBucket.SetCapacity(accCfg.GetOvershootCoefficient() * resCfg.GetMaxUnitsPerSecond() * resCfg.GetPrefetchCoefficient());
-        Provisioned.Configure(accCfg.GetProvisioned(), QuoterPath, props.GetResourcePath(), "provisioned", BillSink);
-        OnDemand.Configure(accCfg.GetOnDemand(), QuoterPath, props.GetResourcePath(), "ondemand", BillSink);
-        Overshoot.Configure(accCfg.GetOvershoot(), QuoterPath, props.GetResourcePath(), "overshoot", BillSink);
-        LWPROBE(ResourceAccountConfigure,
-            QuoterPath,
-            ResourcePath,
-            ProvisionedBucket.GetRate(), ProvisionedBucket.GetCapacity(), ProvisionedBucket.Available(), ProvisionedBucket.GetLastFill(),
-            OnDemandBucket.GetRate(), OnDemandBucket.GetCapacity(), OnDemandBucket.Available(), OnDemandBucket.GetLastFill());
-
-    }
-
-    void Handle(const TEvPrivate::TEvRunAccounting::TPtr& ev, const NActors::TActorContext& ctx) {
-        auto* e = ev->Get();
-
-        // Aggregate consumption over history
-        for (TInstant t = e->History.Begin(); t != e->History.End(); t = e->History.Next(t)) {
-            AddValue(t, e->History.Get(t), ctx);
-        }
-
-        // Propagate time to the last accounted instant
-        // NOTE: required to report zero consumption not saved in history
-        // NOTE: may coincide with the last point and therefore ignored
-        AddValue(e->Time, 0, ctx);
-    }
-
-    void AddValue(TInstant t, double consumed, const NActors::TActorContext& ctx) {
-        if (Y_UNLIKELY(t <= Time)) {
-            return; // ignore data from past
-        }
-        Time = t;
-        ProcessConfigQueue();
-
-        // Classify consumption into 3 categories
-        double provisionedAndOnDemand = OnDemandBucket.FillAndTryTake(t, consumed);
-        double provisioned = ProvisionedBucket.FillAndTryTake(t, consumed);
-        double onDemand = Max(0.0, provisionedAndOnDemand - provisioned);
-        double overshoot = Max(0.0, consumed - provisioned - onDemand);
-
-        LWPROBE(ResourceAccount,
-            QuoterPath,
-            ResourcePath,
-            t, provisionedAndOnDemand, provisioned, onDemand, overshoot,
-            ProvisionedBucket.GetRate(), ProvisionedBucket.GetCapacity(), ProvisionedBucket.Available(),
-            OnDemandBucket.GetRate(), OnDemandBucket.GetCapacity(), OnDemandBucket.Available());
-
-        Provisioned.Add(provisioned, t, ctx);
-        OnDemand.Add(onDemand, t, ctx);
-        Overshoot.Add(overshoot, t, ctx);
-    }
-};
-
-}   // namespace
-
-////////////////////////////////////////////////////////////////////////////////
-
-TRateAccounting::TRateAccounting(NActors::TActorId kesus, const IBillSink::TPtr& billSink, const NKikimrKesus::TStreamingQuoterResource& props, const TString& quoterPath)
-    : Props(props)
-    , QuoterPath(quoterPath)
-    , History(HistorySize())
-    , Kesus(kesus)
-{
-    AccountingActor = TActivationContext::Register(new TAccountingActor(billSink, Props, QuoterPath), Kesus);
-    ConfigureImpl();
-}
-
-void TRateAccounting::Stop() {
-    TActivationContext::Send(new IEventHandle(AccountingActor, Kesus,
-        new TEvents::TEvPoisonPill()));
-}
-
-bool TRateAccounting::ValidateProps(const NKikimrKesus::TStreamingQuoterResource& props, TString& errorMessage) {
-    // NOTE: ValidateProps() is called with NOT effective props, so some fields can be unset, see CalcParameters()
-    const auto& cfg = props.GetAccountingConfig();
-    if (cfg.GetCollectPeriodSec() > 3600) {
-        errorMessage = "CollectPeriodSec must be less than an hour.";
-        return false;
-    }
-    if (!std::isfinite(cfg.GetProvisionedUnitsPerSecond())) {
-        errorMessage = "ProvisionedUnitsPerSecond must be finite.";
-        return false;
-    }
-    if (!std::isfinite(cfg.GetProvisionedCoefficient())) {
-        errorMessage = "ProvisionedCoefficient must be finite.";
-        return false;
-    }
-    if (!std::isfinite(cfg.GetOvershootCoefficient())) {
-        errorMessage = "OvershootCoefficient must be finite.";
-        return false;
-    }
-    if (cfg.GetProvisionedUnitsPerSecond() < 0.0) {
-        errorMessage = "ProvisionedUnitsPerSecond must be greater or equal to 0.";
-        return false;
-    }
-    if (cfg.GetProvisionedCoefficient() < 0.0) {
-        errorMessage = "ProvisionedCoefficient must be greater or equal to 0.";
-        return false;
-    }
-    if (cfg.GetOvershootCoefficient() != 0.0 && cfg.GetOvershootCoefficient() < 1.0) {
-        errorMessage = "OvershootCoefficient must be greater or equal to 1 or not set (zero).";
-        return false;
-    }
-    return true;
-}
-
-void TRateAccounting::Configure(const NKikimrKesus::TStreamingQuoterResource& props) {
-    // NOTE: Configure is called with effective props
-    Props = props;
-    ConfigureImpl();
-    TActivationContext::Send(new NActors::IEventHandle(AccountingActor, Kesus,
-        new TEvPrivate::TEvConfigure(TActivationContext::Now(), props)));
-}
-
-void TRateAccounting::ConfigureImpl() {
-    size_t newHistorySize = HistorySize();
-    if (History.Size() != newHistorySize) {
-        TConsumptionHistory newHistory(newHistorySize);
-        newHistory.Add(History, Accounted); // Note that data loss is possible on size decrease
-        History = std::move(newHistory);
-    }
-    const auto& accCfg = Props.GetAccountingConfig();
-    MaxBillingPeriod = TDuration::Seconds(Max(
-        accCfg.GetProvisioned().GetBillingPeriodSec(),
-        accCfg.GetOnDemand().GetBillingPeriodSec(),
-        accCfg.GetOvershoot().GetBillingPeriodSec()));
-}
-
-TInstant TRateAccounting::Report(
-    const NActors::TActorId& clientId,
-    ui64 resourceId,
-    TInstant start,
-    TDuration interval,
-    const double* values,
-    size_t size)
-{
-    // Deduplicate
-    TDedupId dedupId(clientId, resourceId);
-    auto [iter, isNew] = ClientToReported.emplace(dedupId, TInstant::Zero());
-    TInstant& reported = iter->second;
-    if (start < reported) {
-        ui64 skip = ((reported - start).MicroSeconds() + interval.MicroSeconds() - 1) / interval.MicroSeconds();
-        LWPROBE(ResourceReportDedup, QuoterPath, Props.GetResourcePath(), skip, size, start);
-        if (skip >= size) { // all values are deduplicated
-            LWPROBE(ResourceReportDedupFull, QuoterPath, Props.GetResourcePath(), skip, size, start);
-            return reported;
-        }
-        values += skip;
-        size -= skip;
-        start += interval * skip;
-        Y_VERIFY(start >= reported, "rate accounting report deduplication error");
-    }
-
-    // Accept values and add them into history
-    // Note that data from distant future can be left unaccepted
-    size_t added = History.Add(interval, start, values, size, Accounted);
-    LWPROBE(ResourceReportAdd, QuoterPath, Props.GetResourcePath(), added, size, start, Accounted);
-
-    // Propagate deduplication timestamp
-    if (!isNew) {
-        SortedClients.erase(std::make_pair(reported, dedupId));
-    }
-    reported = start + added * interval;
-    SortedClients.emplace(reported, dedupId);
-    TInstant result = reported;
-
-    // Clean is delayed till this moment to avoid `iter` invalidation
-    RemoveOldClients();
-    return result;
-}
-
-void TRateAccounting::RemoveOldClients() {
-    while (!SortedClients.empty() && SortedClients.begin()->first <= Accounted) {
-        ClientToReported.erase(SortedClients.begin()->second);
-        SortedClients.erase(SortedClients.begin());
-        Y_VERIFY_DEBUG(SortedClients.size() == ClientToReported.size());
-    }
-}
-
-bool TRateAccounting::RunAccounting() {
-    bool accountingRequired = RunAccountingNoClean();
-    RemoveOldClients();
-    bool cleaningRequried = !SortedClients.empty();
-    return accountingRequired || cleaningRequried;
-}
-
-void TRateAccounting::SetResourceCounters(const TIntrusivePtr<NMonitoring::TDynamicCounters>& resourceCounters) {
-    Counters.SetResourceCounters(resourceCounters);
-    TActivationContext::Send(new NActors::IEventHandle(AccountingActor, Kesus,
-        new TEvPrivate::TEvCounters(Counters)));
-}
-
-bool TRateAccounting::RunAccountingNoClean() {
-    // Check if we have enough values for at least one account period
-    TInstant accountTill = History.Align(TActivationContext::Now() - CollectPeriod());
-    if (accountTill - Accounted < AccountPeriod()) {
-        LWPROBE(ResourceAccountingTooEarly, QuoterPath, Props.GetResourcePath(), accountTill, Accounted, AccountPeriod());
-        return true;
-    }
-
-    // Check if we have data to send
-    if (History.End() + MaxBillingPeriod <= Accounted) {
-        LWPROBE(ResourceAccountingNoData, QuoterPath, Props.GetResourcePath(), History.End(), Accounted, MaxBillingPeriod);
-        return false;
-    }
-
-    // Offload hard work into accounting actor
-    TActivationContext::Send(new NActors::IEventHandle(AccountingActor, Kesus,
-        new TEvPrivate::TEvRunAccounting(
-            accountTill - History.Interval(),
-            TConsumptionHistory(History, Accounted, accountTill))));
-    LWPROBE(ResourceAccountingSend, QuoterPath, Props.GetResourcePath(), accountTill, Accounted);
-    Accounted = accountTill;
-    return true;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-class TMeteringSink : public IBillSink {
-public:
-    void Send(const NActors::TActorContext& ctx, const TBillRecord& billRecord) override {
-        ctx.Send(NMetering::MakeMeteringServiceID(),
-            new NMetering::TEvMetering::TEvWriteMeteringJson(billRecord.ToString()));
-    }
-};
-
-IBillSink::TPtr MakeMeteringSink() {
-    return IBillSink::TPtr(new TMeteringSink());
-}
-
-}   // namespace NKesus
-}   // namespace NKikimr
+ 
+#include <library/cpp/actors/core/hfunc.h> 
+ 
+#include <util/string/builder.h> 
+#include <util/generic/deque.h> 
+ 
+LWTRACE_USING(KESUS_QUOTER_PROVIDER); 
+ 
+namespace NKikimr { 
+namespace NKesus { 
+ 
+namespace { 
+ 
+using namespace NActors; 
+ 
+//////////////////////////////////////////////////////////////////////////////// 
+struct TEvPrivate { 
+    enum EEv { 
+        EvRunAccounting = EventSpaceBegin(TEvents::ES_PRIVATE), 
+        EvConfigure, 
+        EvCounters, 
+        EvEnd 
+    }; 
+ 
+    static_assert(EvEnd <= EventSpaceEnd(TKikimrEvents::ES_PRIVATE), 
+        "expected EvEnd <= EventSpaceEnd(TKikimrEvents::ES_PRIVATE)"); 
+ 
+    struct TEvRunAccounting : public TEventLocal<TEvRunAccounting, EvRunAccounting> { 
+        TInstant Time; 
+        TConsumptionHistory History; 
+ 
+        TEvRunAccounting(TInstant time, TConsumptionHistory&& history) 
+            : Time(time) 
+            , History(std::move(history)) 
+        {} 
+    }; 
+ 
+    struct TEvConfigure : public TEventLocal<TEvConfigure, EvConfigure> { 
+        TInstant ApplyAt; 
+        NKikimrKesus::TStreamingQuoterResource Props; 
+ 
+        TEvConfigure(TInstant applyAt, const NKikimrKesus::TStreamingQuoterResource& props) 
+            : ApplyAt(applyAt) 
+            , Props(props) 
+        {} 
+    }; 
+ 
+    struct TEvCounters : public TEventLocal<TEvCounters, EvCounters> { 
+        TRateAccountingCounters Counters; 
+ 
+        TEvCounters(const TRateAccountingCounters& counters) 
+            : Counters(counters) 
+        {} 
+    }; 
+}; 
+ 
+//////////////////////////////////////////////////////////////////////////////// 
+inline NJson::TJsonMap ToJsonMap(const google::protobuf::Map<TString, TString>& o) { 
+    NJson::TJsonMap m; 
+    for (auto& [k, v] : o) { 
+        m[k] = v; 
+    } 
+    return m; 
+} 
+ 
+//////////////////////////////////////////////////////////////////////////////// 
+class TBillingMetric { 
+    double Quantity = 0; // total consumption 
+    TInstant LastBillTime; // start of last billing period 
+    TInstant Accumulated; // start of accumulation `Quantity` 
+ 
+    // Monitoring 
+    NMonitoring::TDynamicCounters::TCounterPtr Billed; 
+ 
+    // Configuration 
+    NKikimrKesus::TAccountingConfig::TMetric Cfg; 
+    TTimeGrid TimeGrid; // billing metric time grid 
+    TString QuoterPath; 
+    TString ResourcePath; 
+    TString Category; 
+    IBillSink::TPtr BillSink; 
+ 
+public: 
+    explicit TBillingMetric() 
+        : TimeGrid(TDuration::Minutes(1)) 
+    {} 
+ 
+    static TTimeGrid TimeGridForPeriod(int seconds) { 
+        // Period must be in [2, 3600] seconds interval and be divisor of an hour 
+        seconds = std::clamp(seconds, 2, 3600); 
+        for (; 3600 % seconds != 0; seconds--) {} 
+        return TTimeGrid(TDuration::Seconds(seconds)); 
+    } 
+ 
+    void SetResourceCounters(const NMonitoring::TDynamicCounters::TCounterPtr& billed) { 
+        Billed = billed; 
+    } 
+ 
+    void Configure(const NKikimrKesus::TAccountingConfig::TMetric& cfg, 
+        const TString& quoterPath, 
+        const TString& resourcePath, 
+        const TString& category, 
+        const IBillSink::TPtr& billSink) 
+    { 
+        if (cfg.GetBillingPeriodSec() != Cfg.GetBillingPeriodSec()) { 
+            TimeGrid = TimeGridForPeriod(cfg.GetBillingPeriodSec()); 
+            ResetAccumulated(); // just reset data aligned with old grid (underbill is better than overbill) 
+        } 
+        Cfg = cfg; 
+        QuoterPath = quoterPath; 
+        ResourcePath = resourcePath; 
+        Category = category; 
+        BillSink = billSink; 
+    } 
+ 
+    void Add(double value, TInstant t, const NActors::TActorContext& ctx) { 
+        SendBill(t, ctx); 
+        if (!Accumulated) { 
+            Accumulated = t; 
+        } 
+        Quantity += value; 
+        LWPROBE(ResourceBillAdd, 
+            QuoterPath, 
+            ResourcePath, 
+            Category, 
+            Accumulated, 
+            t, 
+            t - Accumulated, 
+            Quantity, 
+            value); 
+    } 
+ 
+private: 
+    void SendBill(TInstant t, const NActors::TActorContext& ctx) { 
+        auto curr = TimeGrid.Get(t); 
+        auto bill = TimeGrid.Get(Accumulated); 
+        auto last = TimeGrid.Get(LastBillTime); 
+        if ((LastBillTime && bill.Start <= last.End) || curr.Start <= bill.End) { 
+            return; // too early to bill 
+        } 
+ 
+        LastBillTime = bill.Start; 
+        ui64 BillQuantity = std::ceil(Quantity); 
+        if (Billed) { 
+            *Billed += BillQuantity; 
+        } 
+        if (Cfg.GetEnabled() && BillQuantity > 0) { 
+            const TString id = TStringBuilder() 
+                << ResourcePath 
+                << "-" << Category 
+                << "-" << bill.Start.Seconds() 
+                << "-" << bill.End.Seconds(); 
+ 
+            const TBillRecord billRecord = TBillRecord() 
+                .Id(id) 
+                .SourceWt(TActivationContext::Now()) 
+                .Usage(TBillRecord::RequestUnits(BillQuantity, bill.Start, bill.End)) 
+                .Version(Cfg.GetVersion()) 
+                .Schema(Cfg.GetSchema()) 
+                .CloudId(Cfg.GetCloudId()) 
+                .FolderId(Cfg.GetFolderId()) 
+                .ResourceId(Cfg.GetResourceId()) 
+                .SourceId(Cfg.GetSourceId()) 
+                .Tags(ToJsonMap(Cfg.GetTags())); 
+ 
+            LWPROBE(ResourceBillSend, 
+                QuoterPath, 
+                ResourcePath, 
+                Category, 
+                BillQuantity, 
+                bill.Start, 
+                bill.End, 
+                billRecord.Version_, 
+                billRecord.Schema_, 
+                billRecord.CloudId_, 
+                billRecord.FolderId_, 
+                billRecord.ResourceId_, 
+                billRecord.SourceId_); 
+            BillSink->Send(ctx, billRecord); 
+        } 
+ 
+        ResetAccumulated(); 
+    } 
+ 
+    void ResetAccumulated() { 
+        Quantity = 0; 
+        Accumulated = TInstant::Zero(); 
+    } 
+}; 
+ 
+//////////////////////////////////////////////////////////////////////////////// 
+class TAccountingActor final: public TActor<TAccountingActor> { 
+private: 
+    // Accounting (aggregate history intervals and split consumption into billing categories) 
+    TInstant Time; // current history replay time for token buckets 
+    TTokenBucket ProvisionedBucket; 
+    TTokenBucket OnDemandBucket; 
+    TDeque<TAutoPtr<TEvPrivate::TEvConfigure>> ConfigQueue; 
+ 
+    // Billing (actually make bill records and send'em to metering actor) 
+    IBillSink::TPtr BillSink; 
+    TString QuoterPath; 
+    TString ResourcePath; 
+    TBillingMetric Provisioned; 
+    TBillingMetric OnDemand; 
+    TBillingMetric Overshoot; 
+ 
+    // Monitoring 
+    TRateAccountingCounters Counters; 
+public: 
+    explicit TAccountingActor(const IBillSink::TPtr& billSink, const NKikimrKesus::TStreamingQuoterResource& props, const TString& quoterPath) 
+        : TActor(&TThis::StateWork) 
+        , BillSink(billSink) 
+        , QuoterPath(quoterPath) 
+        , ResourcePath(props.GetResourcePath()) 
+    { 
+        Configure(props); 
+    } 
+ 
+    static constexpr NKikimrServices::TActivity::EType ActorActivityType() { 
+        return NKikimrServices::TActivity::KESUS_ACCOUNTING_ACTOR; 
+    } 
+ 
+private: 
+    STFUNC(StateWork) { 
+        switch (ev->GetTypeRewrite()) { 
+            hFunc(TEvPrivate::TEvConfigure, Handle); 
+            hFunc(TEvPrivate::TEvCounters, Handle); 
+            HFunc(TEvPrivate::TEvRunAccounting, Handle); 
+            cFunc(TEvents::TEvPoisonPill::EventType, PassAway); 
+        } 
+    } 
+ 
+    void Handle(const TEvPrivate::TEvConfigure::TPtr& ev) { 
+        // Delay config apply since we work with history here 
+        ConfigQueue.emplace_back(ev.Get()->Release()); 
+    } 
+ 
+    void Handle(const TEvPrivate::TEvCounters::TPtr& ev) { 
+        auto* e = ev->Get(); 
+        Counters = e->Counters; 
+        Provisioned.SetResourceCounters(Counters.Provisioned); 
+        OnDemand.SetResourceCounters(Counters.OnDemand); 
+        Overshoot.SetResourceCounters(Counters.Overshoot); 
+    } 
+ 
+    void ProcessConfigQueue() { 
+        while (!ConfigQueue.empty() && ConfigQueue.front()->ApplyAt <= Time) { 
+            Configure(ConfigQueue.front()->Props); 
+            ConfigQueue.pop_front(); 
+        } 
+    } 
+ 
+    void Configure(const NKikimrKesus::TStreamingQuoterResource& props) { 
+        const auto& accCfg = props.GetAccountingConfig(); 
+        const auto& resCfg = props.GetHierarhicalDRRResourceConfig(); 
+        ProvisionedBucket.SetRate(accCfg.GetProvisionedUnitsPerSecond()); 
+        ProvisionedBucket.SetCapacity(accCfg.GetProvisionedUnitsPerSecond() * accCfg.GetProvisionedCoefficient()); 
+        OnDemandBucket.SetRate(resCfg.GetMaxUnitsPerSecond()); 
+        OnDemandBucket.SetCapacity(accCfg.GetOvershootCoefficient() * resCfg.GetMaxUnitsPerSecond() * resCfg.GetPrefetchCoefficient()); 
+        Provisioned.Configure(accCfg.GetProvisioned(), QuoterPath, props.GetResourcePath(), "provisioned", BillSink); 
+        OnDemand.Configure(accCfg.GetOnDemand(), QuoterPath, props.GetResourcePath(), "ondemand", BillSink); 
+        Overshoot.Configure(accCfg.GetOvershoot(), QuoterPath, props.GetResourcePath(), "overshoot", BillSink); 
+        LWPROBE(ResourceAccountConfigure, 
+            QuoterPath, 
+            ResourcePath, 
+            ProvisionedBucket.GetRate(), ProvisionedBucket.GetCapacity(), ProvisionedBucket.Available(), ProvisionedBucket.GetLastFill(), 
+            OnDemandBucket.GetRate(), OnDemandBucket.GetCapacity(), OnDemandBucket.Available(), OnDemandBucket.GetLastFill()); 
+ 
+    } 
+ 
+    void Handle(const TEvPrivate::TEvRunAccounting::TPtr& ev, const NActors::TActorContext& ctx) { 
+        auto* e = ev->Get(); 
+ 
+        // Aggregate consumption over history 
+        for (TInstant t = e->History.Begin(); t != e->History.End(); t = e->History.Next(t)) { 
+            AddValue(t, e->History.Get(t), ctx); 
+        } 
+ 
+        // Propagate time to the last accounted instant 
+        // NOTE: required to report zero consumption not saved in history 
+        // NOTE: may coincide with the last point and therefore ignored 
+        AddValue(e->Time, 0, ctx); 
+    } 
+ 
+    void AddValue(TInstant t, double consumed, const NActors::TActorContext& ctx) { 
+        if (Y_UNLIKELY(t <= Time)) { 
+            return; // ignore data from past 
+        } 
+        Time = t; 
+        ProcessConfigQueue(); 
+ 
+        // Classify consumption into 3 categories 
+        double provisionedAndOnDemand = OnDemandBucket.FillAndTryTake(t, consumed); 
+        double provisioned = ProvisionedBucket.FillAndTryTake(t, consumed); 
+        double onDemand = Max(0.0, provisionedAndOnDemand - provisioned); 
+        double overshoot = Max(0.0, consumed - provisioned - onDemand); 
+ 
+        LWPROBE(ResourceAccount, 
+            QuoterPath, 
+            ResourcePath, 
+            t, provisionedAndOnDemand, provisioned, onDemand, overshoot, 
+            ProvisionedBucket.GetRate(), ProvisionedBucket.GetCapacity(), ProvisionedBucket.Available(), 
+            OnDemandBucket.GetRate(), OnDemandBucket.GetCapacity(), OnDemandBucket.Available()); 
+ 
+        Provisioned.Add(provisioned, t, ctx); 
+        OnDemand.Add(onDemand, t, ctx); 
+        Overshoot.Add(overshoot, t, ctx); 
+    } 
+}; 
+ 
+}   // namespace 
+ 
+//////////////////////////////////////////////////////////////////////////////// 
+ 
+TRateAccounting::TRateAccounting(NActors::TActorId kesus, const IBillSink::TPtr& billSink, const NKikimrKesus::TStreamingQuoterResource& props, const TString& quoterPath) 
+    : Props(props) 
+    , QuoterPath(quoterPath) 
+    , History(HistorySize()) 
+    , Kesus(kesus) 
+{ 
+    AccountingActor = TActivationContext::Register(new TAccountingActor(billSink, Props, QuoterPath), Kesus); 
+    ConfigureImpl(); 
+} 
+ 
+void TRateAccounting::Stop() { 
+    TActivationContext::Send(new IEventHandle(AccountingActor, Kesus, 
+        new TEvents::TEvPoisonPill())); 
+} 
+ 
+bool TRateAccounting::ValidateProps(const NKikimrKesus::TStreamingQuoterResource& props, TString& errorMessage) { 
+    // NOTE: ValidateProps() is called with NOT effective props, so some fields can be unset, see CalcParameters() 
+    const auto& cfg = props.GetAccountingConfig(); 
+    if (cfg.GetCollectPeriodSec() > 3600) { 
+        errorMessage = "CollectPeriodSec must be less than an hour."; 
+        return false; 
+    } 
+    if (!std::isfinite(cfg.GetProvisionedUnitsPerSecond())) { 
+        errorMessage = "ProvisionedUnitsPerSecond must be finite."; 
+        return false; 
+    } 
+    if (!std::isfinite(cfg.GetProvisionedCoefficient())) { 
+        errorMessage = "ProvisionedCoefficient must be finite."; 
+        return false; 
+    } 
+    if (!std::isfinite(cfg.GetOvershootCoefficient())) { 
+        errorMessage = "OvershootCoefficient must be finite."; 
+        return false; 
+    } 
+    if (cfg.GetProvisionedUnitsPerSecond() < 0.0) { 
+        errorMessage = "ProvisionedUnitsPerSecond must be greater or equal to 0."; 
+        return false; 
+    } 
+    if (cfg.GetProvisionedCoefficient() < 0.0) { 
+        errorMessage = "ProvisionedCoefficient must be greater or equal to 0."; 
+        return false; 
+    } 
+    if (cfg.GetOvershootCoefficient() != 0.0 && cfg.GetOvershootCoefficient() < 1.0) { 
+        errorMessage = "OvershootCoefficient must be greater or equal to 1 or not set (zero)."; 
+        return false; 
+    } 
+    return true; 
+} 
+ 
+void TRateAccounting::Configure(const NKikimrKesus::TStreamingQuoterResource& props) { 
+    // NOTE: Configure is called with effective props 
+    Props = props; 
+    ConfigureImpl(); 
+    TActivationContext::Send(new NActors::IEventHandle(AccountingActor, Kesus, 
+        new TEvPrivate::TEvConfigure(TActivationContext::Now(), props))); 
+} 
+ 
+void TRateAccounting::ConfigureImpl() { 
+    size_t newHistorySize = HistorySize(); 
+    if (History.Size() != newHistorySize) { 
+        TConsumptionHistory newHistory(newHistorySize); 
+        newHistory.Add(History, Accounted); // Note that data loss is possible on size decrease 
+        History = std::move(newHistory); 
+    } 
+    const auto& accCfg = Props.GetAccountingConfig(); 
+    MaxBillingPeriod = TDuration::Seconds(Max( 
+        accCfg.GetProvisioned().GetBillingPeriodSec(), 
+        accCfg.GetOnDemand().GetBillingPeriodSec(), 
+        accCfg.GetOvershoot().GetBillingPeriodSec())); 
+} 
+ 
+TInstant TRateAccounting::Report( 
+    const NActors::TActorId& clientId, 
+    ui64 resourceId, 
+    TInstant start, 
+    TDuration interval, 
+    const double* values, 
+    size_t size) 
+{ 
+    // Deduplicate 
+    TDedupId dedupId(clientId, resourceId); 
+    auto [iter, isNew] = ClientToReported.emplace(dedupId, TInstant::Zero()); 
+    TInstant& reported = iter->second; 
+    if (start < reported) { 
+        ui64 skip = ((reported - start).MicroSeconds() + interval.MicroSeconds() - 1) / interval.MicroSeconds(); 
+        LWPROBE(ResourceReportDedup, QuoterPath, Props.GetResourcePath(), skip, size, start); 
+        if (skip >= size) { // all values are deduplicated 
+            LWPROBE(ResourceReportDedupFull, QuoterPath, Props.GetResourcePath(), skip, size, start); 
+            return reported; 
+        } 
+        values += skip; 
+        size -= skip; 
+        start += interval * skip; 
+        Y_VERIFY(start >= reported, "rate accounting report deduplication error"); 
+    } 
+ 
+    // Accept values and add them into history 
+    // Note that data from distant future can be left unaccepted 
+    size_t added = History.Add(interval, start, values, size, Accounted); 
+    LWPROBE(ResourceReportAdd, QuoterPath, Props.GetResourcePath(), added, size, start, Accounted); 
+ 
+    // Propagate deduplication timestamp 
+    if (!isNew) { 
+        SortedClients.erase(std::make_pair(reported, dedupId)); 
+    } 
+    reported = start + added * interval; 
+    SortedClients.emplace(reported, dedupId); 
+    TInstant result = reported; 
+ 
+    // Clean is delayed till this moment to avoid `iter` invalidation 
+    RemoveOldClients(); 
+    return result; 
+} 
+ 
+void TRateAccounting::RemoveOldClients() { 
+    while (!SortedClients.empty() && SortedClients.begin()->first <= Accounted) { 
+        ClientToReported.erase(SortedClients.begin()->second); 
+        SortedClients.erase(SortedClients.begin()); 
+        Y_VERIFY_DEBUG(SortedClients.size() == ClientToReported.size()); 
+    } 
+} 
+ 
+bool TRateAccounting::RunAccounting() { 
+    bool accountingRequired = RunAccountingNoClean(); 
+    RemoveOldClients(); 
+    bool cleaningRequried = !SortedClients.empty(); 
+    return accountingRequired || cleaningRequried; 
+} 
+ 
+void TRateAccounting::SetResourceCounters(const TIntrusivePtr<NMonitoring::TDynamicCounters>& resourceCounters) { 
+    Counters.SetResourceCounters(resourceCounters); 
+    TActivationContext::Send(new NActors::IEventHandle(AccountingActor, Kesus, 
+        new TEvPrivate::TEvCounters(Counters))); 
+} 
+ 
+bool TRateAccounting::RunAccountingNoClean() { 
+    // Check if we have enough values for at least one account period 
+    TInstant accountTill = History.Align(TActivationContext::Now() - CollectPeriod()); 
+    if (accountTill - Accounted < AccountPeriod()) { 
+        LWPROBE(ResourceAccountingTooEarly, QuoterPath, Props.GetResourcePath(), accountTill, Accounted, AccountPeriod()); 
+        return true; 
+    } 
+ 
+    // Check if we have data to send 
+    if (History.End() + MaxBillingPeriod <= Accounted) { 
+        LWPROBE(ResourceAccountingNoData, QuoterPath, Props.GetResourcePath(), History.End(), Accounted, MaxBillingPeriod); 
+        return false; 
+    } 
+ 
+    // Offload hard work into accounting actor 
+    TActivationContext::Send(new NActors::IEventHandle(AccountingActor, Kesus, 
+        new TEvPrivate::TEvRunAccounting( 
+            accountTill - History.Interval(), 
+            TConsumptionHistory(History, Accounted, accountTill)))); 
+    LWPROBE(ResourceAccountingSend, QuoterPath, Props.GetResourcePath(), accountTill, Accounted); 
+    Accounted = accountTill; 
+    return true; 
+} 
+ 
+//////////////////////////////////////////////////////////////////////////////// 
+ 
+class TMeteringSink : public IBillSink { 
+public: 
+    void Send(const NActors::TActorContext& ctx, const TBillRecord& billRecord) override { 
+        ctx.Send(NMetering::MakeMeteringServiceID(), 
+            new NMetering::TEvMetering::TEvWriteMeteringJson(billRecord.ToString())); 
+    } 
+}; 
+ 
+IBillSink::TPtr MakeMeteringSink() { 
+    return IBillSink::TPtr(new TMeteringSink()); 
+} 
+ 
+}   // namespace NKesus 
+}   // namespace NKikimr 
diff --git a/ydb/core/kesus/tablet/rate_accounting.h b/ydb/core/kesus/tablet/rate_accounting.h
index 4faa1ea114..3984650d90 100644
--- a/ydb/core/kesus/tablet/rate_accounting.h
+++ b/ydb/core/kesus/tablet/rate_accounting.h
@@ -1,107 +1,107 @@
-#pragma once
-
+#pragma once 
+ 
 #include <ydb/core/protos/kesus.pb.h>
 #include <ydb/core/util/time_series_vec.h>
-
-#include <library/cpp/actors/core/actorsystem.h>
-#include <library/cpp/monlib/dynamic_counters/counters.h>
-
-#include <util/generic/noncopyable.h>
-#include <util/generic/hash.h>
-#include <util/generic/set.h>
-
-namespace NKikimr {
-
-struct TBillRecord;
-
-namespace NKesus {
-
-// NOTE: IntervalUs is better to be the same on quoter proxy and kesus tablet
-using TConsumptionHistory = TTimeSeriesVec<double>;
-
-// Bill sink - encapsulates send method to metering actor
-// Actually implements dependency injection for testing purpose
-class IBillSink : public TThrRefBase {
-public:
-    using TPtr = TIntrusivePtr<IBillSink>;
-    virtual void Send(const NActors::TActorContext& ctx, const TBillRecord& billRecord) = 0;
-};
-
-IBillSink::TPtr MakeMeteringSink();
-
-struct TRateAccountingCounters {
-    TIntrusivePtr<NMonitoring::TDynamicCounters> ResourceCounters;
-    NMonitoring::TDynamicCounters::TCounterPtr Provisioned;
-    NMonitoring::TDynamicCounters::TCounterPtr OnDemand;
-    NMonitoring::TDynamicCounters::TCounterPtr Overshoot;
-
-    void SetResourceCounters(const TIntrusivePtr<NMonitoring::TDynamicCounters>& resourceCounters) {
-        ResourceCounters = resourceCounters;
-        if (ResourceCounters) {
-            Provisioned = ResourceCounters->GetCounter("Provisioned", true);
-            OnDemand = ResourceCounters->GetCounter("OnDemand", true);
-            Overshoot = ResourceCounters->GetCounter("Overshoot", true);
-        } else {
-            Provisioned = MakeIntrusive<NMonitoring::TCounterForPtr>(true);
-            OnDemand = MakeIntrusive<NMonitoring::TCounterForPtr>(true);
-            Overshoot = MakeIntrusive<NMonitoring::TCounterForPtr>(true);
-        }
-    }
-};
-
-
-// Consumption aggregation logic and bill making
-class TRateAccounting : public TNonCopyable {
-    NKikimrKesus::TStreamingQuoterResource Props;
-    TString QuoterPath;
-    using TDedupId = std::pair<NActors::TActorId, ui64>; // clientId, resourceId
-    THashMap<TDedupId, TInstant> ClientToReported; // Most recent reported time by client
-    TSet<std::pair<TInstant, TDedupId>> SortedClients; // for fast cleanup
-    TInstant Accounted; // Next accounting period begining
-    TConsumptionHistory History;
-    NActors::TActorId Kesus;
-    NActors::TActorId AccountingActor;
-    TDuration MaxBillingPeriod;
-    TRateAccountingCounters Counters;
-public:
-    // Init and create accounting actor
-    TRateAccounting(NActors::TActorId kesus, const IBillSink::TPtr& billSink, const NKikimrKesus::TStreamingQuoterResource& props, const TString& quoterPath);
-
-    // Destroy accounting actor
-    void Stop();
-
-    // Configuration
-    static bool ValidateProps(const NKikimrKesus::TStreamingQuoterResource& props, TString& errorMessage);
-    void Configure(const NKikimrKesus::TStreamingQuoterResource& props);
-
-    // Deduplicate and merge client's data into consumption history
-    TInstant Report(const NActors::TActorId& clientId, ui64 resourceId, TInstant start, TDuration interval, const double* values, size_t size);
-
-    // Check timings and send message to accounting actor if required
-    // Should be called periodically to account tail if there is no reports any longer
-    // Returns true iff there are unsent reports (retry on next tick is required)
-    bool RunAccounting();
-
-    void SetResourceCounters(const TIntrusivePtr<NMonitoring::TDynamicCounters>& resourceCounters);
-
-private:
-    void ConfigureImpl();
-    void RemoveOldClients();
-    bool RunAccountingNoClean();
-
-    TDuration CollectPeriod() const {
-        return TDuration::Seconds(Props.GetAccountingConfig().GetCollectPeriodSec());
-    }
-
-    TDuration AccountPeriod() const {
-        return TDuration::MilliSeconds(Props.GetAccountingConfig().GetAccountPeriodMs());
-    }
-
-    size_t HistorySize() const {
-        // One collect period into future and one into past plus window for accounting
-        return (2 * CollectPeriod() + AccountPeriod()) / History.Interval();
-    }
-};
-
-}   // namespace NKesus
-}   // namespace NKikimr
+ 
+#include <library/cpp/actors/core/actorsystem.h> 
+#include <library/cpp/monlib/dynamic_counters/counters.h> 
+ 
+#include <util/generic/noncopyable.h> 
+#include <util/generic/hash.h> 
+#include <util/generic/set.h> 
+ 
+namespace NKikimr { 
+ 
+struct TBillRecord; 
+ 
+namespace NKesus { 
+ 
+// NOTE: IntervalUs is better to be the same on quoter proxy and kesus tablet 
+using TConsumptionHistory = TTimeSeriesVec<double>; 
+ 
+// Bill sink - encapsulates send method to metering actor 
+// Actually implements dependency injection for testing purpose 
+class IBillSink : public TThrRefBase { 
+public: 
+    using TPtr = TIntrusivePtr<IBillSink>; 
+    virtual void Send(const NActors::TActorContext& ctx, const TBillRecord& billRecord) = 0; 
+}; 
+ 
+IBillSink::TPtr MakeMeteringSink(); 
+ 
+struct TRateAccountingCounters { 
+    TIntrusivePtr<NMonitoring::TDynamicCounters> ResourceCounters; 
+    NMonitoring::TDynamicCounters::TCounterPtr Provisioned; 
+    NMonitoring::TDynamicCounters::TCounterPtr OnDemand; 
+    NMonitoring::TDynamicCounters::TCounterPtr Overshoot; 
+ 
+    void SetResourceCounters(const TIntrusivePtr<NMonitoring::TDynamicCounters>& resourceCounters) { 
+        ResourceCounters = resourceCounters; 
+        if (ResourceCounters) { 
+            Provisioned = ResourceCounters->GetCounter("Provisioned", true); 
+            OnDemand = ResourceCounters->GetCounter("OnDemand", true); 
+            Overshoot = ResourceCounters->GetCounter("Overshoot", true); 
+        } else { 
+            Provisioned = MakeIntrusive<NMonitoring::TCounterForPtr>(true); 
+            OnDemand = MakeIntrusive<NMonitoring::TCounterForPtr>(true); 
+            Overshoot = MakeIntrusive<NMonitoring::TCounterForPtr>(true); 
+        } 
+    } 
+}; 
+ 
+ 
+// Consumption aggregation logic and bill making 
+class TRateAccounting : public TNonCopyable { 
+    NKikimrKesus::TStreamingQuoterResource Props; 
+    TString QuoterPath; 
+    using TDedupId = std::pair<NActors::TActorId, ui64>; // clientId, resourceId 
+    THashMap<TDedupId, TInstant> ClientToReported; // Most recent reported time by client 
+    TSet<std::pair<TInstant, TDedupId>> SortedClients; // for fast cleanup 
+    TInstant Accounted; // Next accounting period begining 
+    TConsumptionHistory History; 
+    NActors::TActorId Kesus; 
+    NActors::TActorId AccountingActor; 
+    TDuration MaxBillingPeriod; 
+    TRateAccountingCounters Counters; 
+public: 
+    // Init and create accounting actor 
+    TRateAccounting(NActors::TActorId kesus, const IBillSink::TPtr& billSink, const NKikimrKesus::TStreamingQuoterResource& props, const TString& quoterPath); 
+ 
+    // Destroy accounting actor 
+    void Stop(); 
+ 
+    // Configuration 
+    static bool ValidateProps(const NKikimrKesus::TStreamingQuoterResource& props, TString& errorMessage); 
+    void Configure(const NKikimrKesus::TStreamingQuoterResource& props); 
+ 
+    // Deduplicate and merge client's data into consumption history 
+    TInstant Report(const NActors::TActorId& clientId, ui64 resourceId, TInstant start, TDuration interval, const double* values, size_t size); 
+ 
+    // Check timings and send message to accounting actor if required 
+    // Should be called periodically to account tail if there is no reports any longer 
+    // Returns true iff there are unsent reports (retry on next tick is required) 
+    bool RunAccounting(); 
+ 
+    void SetResourceCounters(const TIntrusivePtr<NMonitoring::TDynamicCounters>& resourceCounters); 
+ 
+private: 
+    void ConfigureImpl(); 
+    void RemoveOldClients(); 
+    bool RunAccountingNoClean(); 
+ 
+    TDuration CollectPeriod() const { 
+        return TDuration::Seconds(Props.GetAccountingConfig().GetCollectPeriodSec()); 
+    } 
+ 
+    TDuration AccountPeriod() const { 
+        return TDuration::MilliSeconds(Props.GetAccountingConfig().GetAccountPeriodMs()); 
+    } 
+ 
+    size_t HistorySize() const { 
+        // One collect period into future and one into past plus window for accounting 
+        return (2 * CollectPeriod() + AccountPeriod()) / History.Interval(); 
+    } 
+}; 
+ 
+}   // namespace NKesus 
+}   // namespace NKikimr 
diff --git a/ydb/core/kesus/tablet/tablet_impl.cpp b/ydb/core/kesus/tablet/tablet_impl.cpp
index 245c4b91b8..425abffc41 100644
--- a/ydb/core/kesus/tablet/tablet_impl.cpp
+++ b/ydb/core/kesus/tablet/tablet_impl.cpp
@@ -296,7 +296,7 @@ STFUNC(TKesusTablet::StateWork) {
         hFunc(TEvKesus::TEvDeleteQuoterResource, Handle);
         hFunc(TEvKesus::TEvSubscribeOnResources, Handle);
         hFunc(TEvKesus::TEvUpdateConsumptionState, Handle);
-        hFunc(TEvKesus::TEvAccountResources, Handle);
+        hFunc(TEvKesus::TEvAccountResources, Handle); 
         hFunc(TEvKesus::TEvResourcesAllocatedAck, Handle);
         hFunc(TEvKesus::TEvGetQuoterResourceCounters, Handle);
         hFunc(TEvTabletPipe::TEvServerDisconnected, Handle);
diff --git a/ydb/core/kesus/tablet/tablet_impl.h b/ydb/core/kesus/tablet/tablet_impl.h
index 1607e352d0..613d28a977 100644
--- a/ydb/core/kesus/tablet/tablet_impl.h
+++ b/ydb/core/kesus/tablet/tablet_impl.h
@@ -407,7 +407,7 @@ private:
     // Quoter runtime
     void Handle(TEvKesus::TEvSubscribeOnResources::TPtr& ev);
     void Handle(TEvKesus::TEvUpdateConsumptionState::TPtr& ev);
-    void Handle(TEvKesus::TEvAccountResources::TPtr& ev);
+    void Handle(TEvKesus::TEvAccountResources::TPtr& ev); 
     void Handle(TEvKesus::TEvResourcesAllocatedAck::TPtr& ev);
     void Handle(TEvKesus::TEvGetQuoterResourceCounters::TPtr& ev);
     void Handle(TEvTabletPipe::TEvServerDisconnected::TPtr& ev);
diff --git a/ydb/core/kesus/tablet/tablet_ut.cpp b/ydb/core/kesus/tablet/tablet_ut.cpp
index 1cf1a80ca8..e0470089d8 100644
--- a/ydb/core/kesus/tablet/tablet_ut.cpp
+++ b/ydb/core/kesus/tablet/tablet_ut.cpp
@@ -1,10 +1,10 @@
 #include "tablet.h"
 #include "events.h"
 #include "ut_helpers.h"
-#include "rate_accounting.h"
+#include "rate_accounting.h" 
 
 #include <ydb/core/metering/metering.h>
-
+ 
 #include <library/cpp/actors/interconnect/interconnect_impl.h>
 
 #include <util/random/random.h>
@@ -1675,415 +1675,415 @@ Y_UNIT_TEST_SUITE(TKesusTest) {
         } while (allocated < 49.99);
     }
 
-    Y_UNIT_TEST(TestQuoterAccountResourcesOnDemand) {
-        TTestContext ctx;
-        ctx.Setup();
-
-        TString billRecord;
-        ctx.Runtime->SetObserverFunc([&billRecord](TTestActorRuntimeBase&, TAutoPtr<IEventHandle>& ev) {
-            if (ev->GetTypeRewrite() == NMetering::TEvMetering::EvWriteMeteringJson) {
-                billRecord = ev->Get<NMetering::TEvMetering::TEvWriteMeteringJson>()->MeteringJson;
-            }
-            return TTestActorRuntime::EEventAction::PROCESS;
-        });
-
-        NKikimrKesus::TStreamingQuoterResource cfg;
-        cfg.SetResourcePath("/Root");
-        cfg.MutableHierarhicalDRRResourceConfig()->SetMaxUnitsPerSecond(100.0);
-        cfg.MutableHierarhicalDRRResourceConfig()->SetPrefetchCoefficient(300.0);
-        cfg.MutableAccountingConfig()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->SetReportPeriodMs(1000);
-        cfg.MutableAccountingConfig()->SetAccountPeriodMs(1000);
-        cfg.MutableAccountingConfig()->SetCollectPeriodSec(2);
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetBillingPeriodSec(2);
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetVersion("version");
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetSchema("schema");
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetCloudId("cloud");
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetFolderId("folder");
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetResourceId("resource");
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetSourceId("source");
-        cfg.MutableAccountingConfig()->MutableOnDemand()->MutableTags()->insert({"key", "value"});
-        ctx.AddQuoterResource(cfg);
-        ctx.AddQuoterResource("/Root/Res"); // With inherited settings.
-
-        auto edge = ctx.Runtime->AllocateEdgeActor();
-        auto client = ctx.Runtime->AllocateEdgeActor();
-        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult = ctx.SubscribeOnResource(client, edge, "/Root/Res", false, 0);
-
-        TInstant start = ctx.Runtime->GetCurrentTime();
-        TDuration interval = TConsumptionHistory::Interval();
-        ctx.AccountResources(client, edge, subscribeResult.GetResults(0).GetResourceId(), start, interval, {50.0});
-
-        if (billRecord.empty()) {
-            TDispatchOptions opts;
-            opts.FinalEvents.emplace_back([&billRecord](IEventHandle&) -> bool {
-                return !billRecord.empty();
-            });
-            ctx.Runtime->DispatchEvents(opts);
-        }
-
-        const TString expectedBillRecord = R"({"usage":{"start":0,"quantity":50,"finish":1,"unit":"request_unit","type":"delta"},"tags":{"key":"value"},"id":"Root-ondemand-0-1","cloud_id":"cloud","source_wt":5,"source_id":"source","resource_id":"resource","schema":"schema","folder_id":"folder","version":"version"})";
-
-        UNIT_ASSERT_NO_DIFF(billRecord, expectedBillRecord + "\n");
-    }
-
-    Y_UNIT_TEST(TestQuoterAccountResourcesBurst) {
-        TTestContext ctx;
-        ctx.Setup();
-
-        std::vector<TString> bills;
-        ctx.Runtime->SetObserverFunc([&bills](TTestActorRuntimeBase&, TAutoPtr<IEventHandle>& ev) {
-            if (ev->GetTypeRewrite() == NMetering::TEvMetering::EvWriteMeteringJson) {
-                bills.push_back(ev->Get<NMetering::TEvMetering::TEvWriteMeteringJson>()->MeteringJson);
-            }
-            return TTestActorRuntime::EEventAction::PROCESS;
-        });
-
-        NKikimrKesus::TStreamingQuoterResource cfg;
-        cfg.SetResourcePath("/Root");
-        cfg.MutableHierarhicalDRRResourceConfig()->SetMaxUnitsPerSecond(300.0);
-        cfg.MutableHierarhicalDRRResourceConfig()->SetPrefetchCoefficient(1.0);
-        cfg.MutableAccountingConfig()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->SetReportPeriodMs(1000);
-        cfg.MutableAccountingConfig()->SetAccountPeriodMs(1000);
-        cfg.MutableAccountingConfig()->SetCollectPeriodSec(2);
-        cfg.MutableAccountingConfig()->SetProvisionedUnitsPerSecond(100.0);
-        cfg.MutableAccountingConfig()->SetProvisionedCoefficient(1.0);
-        cfg.MutableAccountingConfig()->SetOvershootCoefficient(1.0);
-        cfg.MutableAccountingConfig()->MutableProvisioned()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableProvisioned()->SetBillingPeriodSec(2);
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetBillingPeriodSec(2);
-        cfg.MutableAccountingConfig()->MutableOvershoot()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableOvershoot()->SetBillingPeriodSec(2);
-        ctx.AddQuoterResource(cfg);
-        ctx.AddQuoterResource("/Root/Res"); // With inherited settings.
-
-        auto edge = ctx.Runtime->AllocateEdgeActor();
-        auto client = ctx.Runtime->AllocateEdgeActor();
-        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult = ctx.SubscribeOnResource(client, edge, "/Root/Res", false, 0);
-
-        TInstant start = ctx.Runtime->GetCurrentTime();
-        TDuration interval = TConsumptionHistory::Interval();
-        ctx.AccountResources(client, edge, subscribeResult.GetResults(0).GetResourceId(), start, interval, {600.0});
-
-        if (bills.size() < 3) {
-            TDispatchOptions opts;
-            opts.FinalEvents.emplace_back([&bills](IEventHandle&) -> bool {
-                return bills.size() >= 3;
-            });
-            ctx.Runtime->DispatchEvents(opts);
-        }
-
-        UNIT_ASSERT_NO_DIFF(bills[0], TString(R"({"usage":{"start":0,"quantity":100,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-provisioned-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n");
-        UNIT_ASSERT_NO_DIFF(bills[1], TString(R"({"usage":{"start":0,"quantity":200,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-ondemand-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n");
-        UNIT_ASSERT_NO_DIFF(bills[2], TString(R"({"usage":{"start":0,"quantity":300,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-overshoot-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n");
-    }
-
-    Y_UNIT_TEST(TestQuoterAccountResourcesPaced) {
-        TTestContext ctx;
-        ctx.Setup();
-
-        std::vector<TString> bills;
-        ctx.Runtime->SetObserverFunc([&bills](TTestActorRuntimeBase&, TAutoPtr<IEventHandle>& ev) {
-            if (ev->GetTypeRewrite() == NMetering::TEvMetering::EvWriteMeteringJson) {
-                bills.push_back(ev->Get<NMetering::TEvMetering::TEvWriteMeteringJson>()->MeteringJson);
-            }
-            return TTestActorRuntime::EEventAction::PROCESS;
-        });
-
-        NKikimrKesus::TStreamingQuoterResource cfg;
-        cfg.SetResourcePath("/Root");
-        cfg.MutableHierarhicalDRRResourceConfig()->SetMaxUnitsPerSecond(300.0);
-        cfg.MutableHierarhicalDRRResourceConfig()->SetPrefetchCoefficient(1.0);
-        cfg.MutableAccountingConfig()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->SetReportPeriodMs(1000);
-        cfg.MutableAccountingConfig()->SetAccountPeriodMs(1000);
-        cfg.MutableAccountingConfig()->SetCollectPeriodSec(2);
-        cfg.MutableAccountingConfig()->SetProvisionedUnitsPerSecond(100.0);
-        cfg.MutableAccountingConfig()->SetProvisionedCoefficient(1.0);
-        cfg.MutableAccountingConfig()->SetOvershootCoefficient(1.0);
-        cfg.MutableAccountingConfig()->MutableProvisioned()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableProvisioned()->SetBillingPeriodSec(2);
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetBillingPeriodSec(2);
-        cfg.MutableAccountingConfig()->MutableOvershoot()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableOvershoot()->SetBillingPeriodSec(2);
-        ctx.AddQuoterResource(cfg);
-        ctx.AddQuoterResource("/Root/Res"); // With inherited settings.
-
-        auto edge = ctx.Runtime->AllocateEdgeActor();
-        auto client = ctx.Runtime->AllocateEdgeActor();
-        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult = ctx.SubscribeOnResource(client, edge, "/Root/Res", false, 0);
-
-        TInstant start = ctx.Runtime->GetCurrentTime();
-        TDuration interval = TConsumptionHistory::Interval();
-        std::vector<double> values;
-        for (int i = 0; i < 100; i++) {
-            values.push_back(6);
-        }
-        ctx.AccountResources(client, edge, subscribeResult.GetResults(0).GetResourceId(), start, interval, std::move(values));
-
-        if (bills.size() < 3) {
-            TDispatchOptions opts;
-            opts.FinalEvents.emplace_back([&bills](IEventHandle&) -> bool {
-                return bills.size() >= 3;
-            });
-            ctx.Runtime->DispatchEvents(opts);
-        }
-
-        UNIT_ASSERT_NO_DIFF(bills[0], TString(R"({"usage":{"start":0,"quantity":199,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-provisioned-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n");
-        UNIT_ASSERT_NO_DIFF(bills[1], TString(R"({"usage":{"start":0,"quantity":398,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-ondemand-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n");
-        UNIT_ASSERT_NO_DIFF(bills[2], TString(R"({"usage":{"start":0,"quantity":3,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-overshoot-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n");
-    }
-
-    Y_UNIT_TEST(TestQuoterAccountResourcesAggregateClients) {
-        TTestContext ctx;
-        ctx.Setup();
-
-        std::vector<TString> bills;
-        ctx.Runtime->SetObserverFunc([&bills](TTestActorRuntimeBase&, TAutoPtr<IEventHandle>& ev) {
-            if (ev->GetTypeRewrite() == NMetering::TEvMetering::EvWriteMeteringJson) {
-                bills.push_back(ev->Get<NMetering::TEvMetering::TEvWriteMeteringJson>()->MeteringJson);
-            }
-            return TTestActorRuntime::EEventAction::PROCESS;
-        });
-
-        NKikimrKesus::TStreamingQuoterResource cfg;
-        cfg.SetResourcePath("/Root");
-        cfg.MutableHierarhicalDRRResourceConfig()->SetMaxUnitsPerSecond(300.0);
-        cfg.MutableHierarhicalDRRResourceConfig()->SetPrefetchCoefficient(1.0);
-        cfg.MutableAccountingConfig()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->SetReportPeriodMs(1000);
-        cfg.MutableAccountingConfig()->SetAccountPeriodMs(1000);
-        cfg.MutableAccountingConfig()->SetCollectPeriodSec(2);
-        cfg.MutableAccountingConfig()->SetProvisionedUnitsPerSecond(100.0);
-        cfg.MutableAccountingConfig()->SetProvisionedCoefficient(1.0);
-        cfg.MutableAccountingConfig()->SetOvershootCoefficient(1.0);
-        cfg.MutableAccountingConfig()->MutableProvisioned()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableProvisioned()->SetBillingPeriodSec(2);
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetBillingPeriodSec(2);
-        cfg.MutableAccountingConfig()->MutableOvershoot()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableOvershoot()->SetBillingPeriodSec(2);
-        ctx.AddQuoterResource(cfg);
-
-        auto edge = ctx.Runtime->AllocateEdgeActor();
-        auto client1 = ctx.Runtime->AllocateEdgeActor();
-        auto client2 = ctx.Runtime->AllocateEdgeActor();
-        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult1 = ctx.SubscribeOnResource(client1, edge, "/Root", false, 0);
-        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult2 = ctx.SubscribeOnResource(client2, edge, "/Root", false, 0);
-
-        TInstant start = ctx.Runtime->GetCurrentTime();
-        TDuration interval = TConsumptionHistory::Interval();
-        std::vector<double> values1;
-        std::vector<double> values2;
-        for (int i = 0; i < 100; i++) {
-            values1.push_back(3);
-            values2.push_back(3);
-        }
-        ctx.AccountResources(client1, edge, subscribeResult1.GetResults(0).GetResourceId(), start, interval, std::move(values1));
-        ctx.AccountResources(client2, edge, subscribeResult2.GetResults(0).GetResourceId(), start, interval, std::move(values2));
-
-        if (bills.size() < 3) {
-            TDispatchOptions opts;
-            opts.FinalEvents.emplace_back([&bills](IEventHandle&) -> bool {
-                return bills.size() >= 3;
-            });
-            ctx.Runtime->DispatchEvents(opts);
-        }
-
-        UNIT_ASSERT_NO_DIFF(bills[0], TString(R"({"usage":{"start":0,"quantity":199,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-provisioned-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n");
-        UNIT_ASSERT_NO_DIFF(bills[1], TString(R"({"usage":{"start":0,"quantity":398,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-ondemand-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n");
-        UNIT_ASSERT_NO_DIFF(bills[2], TString(R"({"usage":{"start":0,"quantity":3,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-overshoot-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n");
-    }
-
-    Y_UNIT_TEST(TestQuoterAccountResourcesAggregateResources) {
-        TTestContext ctx;
-        ctx.Setup();
-
-        std::vector<TString> bills;
-        ctx.Runtime->SetObserverFunc([&bills](TTestActorRuntimeBase&, TAutoPtr<IEventHandle>& ev) {
-            if (ev->GetTypeRewrite() == NMetering::TEvMetering::EvWriteMeteringJson) {
-                bills.push_back(ev->Get<NMetering::TEvMetering::TEvWriteMeteringJson>()->MeteringJson);
-            }
-            return TTestActorRuntime::EEventAction::PROCESS;
-        });
-
-        NKikimrKesus::TStreamingQuoterResource cfg;
-        cfg.SetResourcePath("/Root");
-        cfg.MutableHierarhicalDRRResourceConfig()->SetMaxUnitsPerSecond(300.0);
-        cfg.MutableHierarhicalDRRResourceConfig()->SetPrefetchCoefficient(1.0);
-        cfg.MutableAccountingConfig()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->SetReportPeriodMs(1000);
-        cfg.MutableAccountingConfig()->SetAccountPeriodMs(1000);
-        cfg.MutableAccountingConfig()->SetCollectPeriodSec(2);
-        cfg.MutableAccountingConfig()->SetProvisionedUnitsPerSecond(100.0);
-        cfg.MutableAccountingConfig()->SetProvisionedCoefficient(1.0);
-        cfg.MutableAccountingConfig()->SetOvershootCoefficient(1.0);
-        cfg.MutableAccountingConfig()->MutableProvisioned()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableProvisioned()->SetBillingPeriodSec(2);
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetBillingPeriodSec(2);
-        cfg.MutableAccountingConfig()->MutableOvershoot()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableOvershoot()->SetBillingPeriodSec(2);
-        ctx.AddQuoterResource(cfg);
-        ctx.AddQuoterResource("/Root/Res1"); // With inherited settings.
-        ctx.AddQuoterResource("/Root/Res2"); // With inherited settings.
-
-        auto edge = ctx.Runtime->AllocateEdgeActor();
-        auto client = ctx.Runtime->AllocateEdgeActor();
-        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult1 = ctx.SubscribeOnResource(client, edge, "/Root/Res1", false, 0);
-        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult2 = ctx.SubscribeOnResource(client, edge, "/Root/Res2", false, 0);
-
-        TInstant start = ctx.Runtime->GetCurrentTime();
-        TDuration interval = TConsumptionHistory::Interval();
-        std::vector<double> values1;
-        std::vector<double> values2;
-        for (int i = 0; i < 100; i++) {
-            values1.push_back(3);
-            values2.push_back(3);
-        }
-        ctx.AccountResources(client, edge, {
-            {subscribeResult1.GetResults(0).GetResourceId(), start, interval, std::move(values1)},
-            {subscribeResult2.GetResults(0).GetResourceId(), start, interval, std::move(values2)}
-        });
-
-        if (bills.size() < 3) {
-            TDispatchOptions opts;
-            opts.FinalEvents.emplace_back([&bills](IEventHandle&) -> bool {
-                return bills.size() >= 3;
-            });
-            ctx.Runtime->DispatchEvents(opts);
-        }
-
-        UNIT_ASSERT_NO_DIFF(bills[0], TString(R"({"usage":{"start":0,"quantity":199,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-provisioned-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n");
-        UNIT_ASSERT_NO_DIFF(bills[1], TString(R"({"usage":{"start":0,"quantity":398,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-ondemand-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n");
-        UNIT_ASSERT_NO_DIFF(bills[2], TString(R"({"usage":{"start":0,"quantity":3,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-overshoot-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n");
-    }
-
-    Y_UNIT_TEST(TestQuoterAccountResourcesDeduplicateClient) {
-        TTestContext ctx;
-        ctx.Setup();
-
-        std::vector<TString> bills;
-        ctx.Runtime->SetObserverFunc([&bills](TTestActorRuntimeBase&, TAutoPtr<IEventHandle>& ev) {
-            if (ev->GetTypeRewrite() == NMetering::TEvMetering::EvWriteMeteringJson) {
-                bills.push_back(ev->Get<NMetering::TEvMetering::TEvWriteMeteringJson>()->MeteringJson);
-            }
-            return TTestActorRuntime::EEventAction::PROCESS;
-        });
-
-        NKikimrKesus::TStreamingQuoterResource cfg;
-        cfg.SetResourcePath("/Root");
-        cfg.MutableHierarhicalDRRResourceConfig()->SetMaxUnitsPerSecond(300.0);
-        cfg.MutableHierarhicalDRRResourceConfig()->SetPrefetchCoefficient(1.0);
-        cfg.MutableAccountingConfig()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->SetReportPeriodMs(1000);
-        cfg.MutableAccountingConfig()->SetAccountPeriodMs(1000);
-        cfg.MutableAccountingConfig()->SetCollectPeriodSec(2);
-        cfg.MutableAccountingConfig()->SetProvisionedUnitsPerSecond(100.0);
-        cfg.MutableAccountingConfig()->SetProvisionedCoefficient(1.0);
-        cfg.MutableAccountingConfig()->SetOvershootCoefficient(1.0);
-        cfg.MutableAccountingConfig()->MutableProvisioned()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableProvisioned()->SetBillingPeriodSec(2);
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetBillingPeriodSec(2);
-        cfg.MutableAccountingConfig()->MutableOvershoot()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableOvershoot()->SetBillingPeriodSec(2);
-        ctx.AddQuoterResource(cfg);
-
-        auto edge = ctx.Runtime->AllocateEdgeActor();
-        auto client = ctx.Runtime->AllocateEdgeActor();
-        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult = ctx.SubscribeOnResource(client, edge, "/Root", false, 0);
-
-        TInstant start = ctx.Runtime->GetCurrentTime();
-        TDuration interval = TConsumptionHistory::Interval();
-        std::vector<double> values1;
-        std::vector<double> values2;
-        for (int i = 0; i < 100; i++) {
-            values1.push_back(6);
-            values2.push_back(6);
-        }
-        ctx.AccountResources(client, edge, subscribeResult.GetResults(0).GetResourceId(), start, interval, std::move(values1));
-        ctx.AccountResources(client, edge, subscribeResult.GetResults(0).GetResourceId(), start, interval, std::move(values2));
-
-        if (bills.size() < 3) {
-            TDispatchOptions opts;
-            opts.FinalEvents.emplace_back([&bills](IEventHandle&) -> bool {
-                return bills.size() >= 3;
-            });
-            ctx.Runtime->DispatchEvents(opts);
-        }
-
-        UNIT_ASSERT_NO_DIFF(bills[0], TString(R"({"usage":{"start":0,"quantity":199,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-provisioned-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n");
-        UNIT_ASSERT_NO_DIFF(bills[1], TString(R"({"usage":{"start":0,"quantity":398,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-ondemand-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n");
-        UNIT_ASSERT_NO_DIFF(bills[2], TString(R"({"usage":{"start":0,"quantity":3,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-overshoot-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n");
-    }
-
-    Y_UNIT_TEST(TestQuoterAccountResourcesForgetClient) {
-        TTestContext ctx;
-        ctx.Setup();
-
-        std::vector<TString> bills;
-        ctx.Runtime->SetObserverFunc([&bills](TTestActorRuntimeBase&, TAutoPtr<IEventHandle>& ev) {
-            if (ev->GetTypeRewrite() == NMetering::TEvMetering::EvWriteMeteringJson) {
-                bills.push_back(ev->Get<NMetering::TEvMetering::TEvWriteMeteringJson>()->MeteringJson);
-            }
-            return TTestActorRuntime::EEventAction::PROCESS;
-        });
-
-        NKikimrKesus::TStreamingQuoterResource cfg;
-        cfg.SetResourcePath("/Root");
-        cfg.MutableHierarhicalDRRResourceConfig()->SetMaxUnitsPerSecond(300.0);
-        cfg.MutableHierarhicalDRRResourceConfig()->SetPrefetchCoefficient(1.0);
-        cfg.MutableAccountingConfig()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->SetReportPeriodMs(1000);
-        cfg.MutableAccountingConfig()->SetAccountPeriodMs(1000);
-        cfg.MutableAccountingConfig()->SetCollectPeriodSec(2);
-        cfg.MutableAccountingConfig()->SetProvisionedUnitsPerSecond(100.0);
-        cfg.MutableAccountingConfig()->SetProvisionedCoefficient(1.0);
-        cfg.MutableAccountingConfig()->SetOvershootCoefficient(1.0);
-        cfg.MutableAccountingConfig()->MutableProvisioned()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableProvisioned()->SetBillingPeriodSec(2);
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableOnDemand()->SetBillingPeriodSec(2);
-        cfg.MutableAccountingConfig()->MutableOvershoot()->SetEnabled(true);
-        cfg.MutableAccountingConfig()->MutableOvershoot()->SetBillingPeriodSec(2);
-        ctx.AddQuoterResource(cfg);
-
-        for (int i = 0; i < 3; i++) {
-            auto edge = ctx.Runtime->AllocateEdgeActor();
-            auto client = ctx.Runtime->AllocateEdgeActor();
-            const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult = ctx.SubscribeOnResource(client, edge, "/Root", false, 0);
-
-            TInstant begin = TInstant::Seconds(2) + i * TDuration::Seconds(6);
-            TDuration interval = TConsumptionHistory::Interval();
-            std::vector<double> values;
-            for (int i = 0; i < 100; i++) {
-                values.push_back(6);
-            }
-            ctx.AccountResources(client, edge, subscribeResult.GetResults(0).GetResourceId(), begin, interval, std::move(values));
-
-            if (bills.size() < 3) {
-                TDispatchOptions opts;
-                opts.FinalEvents.emplace_back([&bills](IEventHandle&) -> bool {
-                    return bills.size() >= 3;
-                });
-                ctx.Runtime->DispatchEvents(opts);
-            }
-
-            int start = 2 + i * 6;
-            int finish = start + 1;
-            int source_wt = start + 5;
-            UNIT_ASSERT_NO_DIFF(bills[0], Sprintf(R"({"usage":{"start":%d,"quantity":199,"finish":%d,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-provisioned-%d-%d","cloud_id":"","source_wt":%d,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})", start, finish, start, finish, source_wt) + "\n");
-            UNIT_ASSERT_NO_DIFF(bills[1], Sprintf(R"({"usage":{"start":%d,"quantity":398,"finish":%d,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-ondemand-%d-%d","cloud_id":"","source_wt":%d,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})", start, finish, start, finish, source_wt) + "\n");
-            UNIT_ASSERT_NO_DIFF(bills[2], Sprintf(R"({"usage":{"start":%d,"quantity":3,"finish":%d,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-overshoot-%d-%d","cloud_id":"","source_wt":%d,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})", start, finish, start, finish, source_wt) + "\n");
-            bills.clear();
-        }
-    }
-
+    Y_UNIT_TEST(TestQuoterAccountResourcesOnDemand) { 
+        TTestContext ctx; 
+        ctx.Setup(); 
+ 
+        TString billRecord; 
+        ctx.Runtime->SetObserverFunc([&billRecord](TTestActorRuntimeBase&, TAutoPtr<IEventHandle>& ev) { 
+            if (ev->GetTypeRewrite() == NMetering::TEvMetering::EvWriteMeteringJson) { 
+                billRecord = ev->Get<NMetering::TEvMetering::TEvWriteMeteringJson>()->MeteringJson; 
+            } 
+            return TTestActorRuntime::EEventAction::PROCESS; 
+        }); 
+ 
+        NKikimrKesus::TStreamingQuoterResource cfg; 
+        cfg.SetResourcePath("/Root"); 
+        cfg.MutableHierarhicalDRRResourceConfig()->SetMaxUnitsPerSecond(100.0); 
+        cfg.MutableHierarhicalDRRResourceConfig()->SetPrefetchCoefficient(300.0); 
+        cfg.MutableAccountingConfig()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->SetReportPeriodMs(1000); 
+        cfg.MutableAccountingConfig()->SetAccountPeriodMs(1000); 
+        cfg.MutableAccountingConfig()->SetCollectPeriodSec(2); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetBillingPeriodSec(2); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetVersion("version"); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetSchema("schema"); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetCloudId("cloud"); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetFolderId("folder"); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetResourceId("resource"); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetSourceId("source"); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->MutableTags()->insert({"key", "value"}); 
+        ctx.AddQuoterResource(cfg); 
+        ctx.AddQuoterResource("/Root/Res"); // With inherited settings. 
+ 
+        auto edge = ctx.Runtime->AllocateEdgeActor(); 
+        auto client = ctx.Runtime->AllocateEdgeActor(); 
+        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult = ctx.SubscribeOnResource(client, edge, "/Root/Res", false, 0); 
+ 
+        TInstant start = ctx.Runtime->GetCurrentTime(); 
+        TDuration interval = TConsumptionHistory::Interval(); 
+        ctx.AccountResources(client, edge, subscribeResult.GetResults(0).GetResourceId(), start, interval, {50.0}); 
+ 
+        if (billRecord.empty()) { 
+            TDispatchOptions opts; 
+            opts.FinalEvents.emplace_back([&billRecord](IEventHandle&) -> bool { 
+                return !billRecord.empty(); 
+            }); 
+            ctx.Runtime->DispatchEvents(opts); 
+        } 
+ 
+        const TString expectedBillRecord = R"({"usage":{"start":0,"quantity":50,"finish":1,"unit":"request_unit","type":"delta"},"tags":{"key":"value"},"id":"Root-ondemand-0-1","cloud_id":"cloud","source_wt":5,"source_id":"source","resource_id":"resource","schema":"schema","folder_id":"folder","version":"version"})"; 
+ 
+        UNIT_ASSERT_NO_DIFF(billRecord, expectedBillRecord + "\n"); 
+    } 
+ 
+    Y_UNIT_TEST(TestQuoterAccountResourcesBurst) { 
+        TTestContext ctx; 
+        ctx.Setup(); 
+ 
+        std::vector<TString> bills; 
+        ctx.Runtime->SetObserverFunc([&bills](TTestActorRuntimeBase&, TAutoPtr<IEventHandle>& ev) { 
+            if (ev->GetTypeRewrite() == NMetering::TEvMetering::EvWriteMeteringJson) { 
+                bills.push_back(ev->Get<NMetering::TEvMetering::TEvWriteMeteringJson>()->MeteringJson); 
+            } 
+            return TTestActorRuntime::EEventAction::PROCESS; 
+        }); 
+ 
+        NKikimrKesus::TStreamingQuoterResource cfg; 
+        cfg.SetResourcePath("/Root"); 
+        cfg.MutableHierarhicalDRRResourceConfig()->SetMaxUnitsPerSecond(300.0); 
+        cfg.MutableHierarhicalDRRResourceConfig()->SetPrefetchCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->SetReportPeriodMs(1000); 
+        cfg.MutableAccountingConfig()->SetAccountPeriodMs(1000); 
+        cfg.MutableAccountingConfig()->SetCollectPeriodSec(2); 
+        cfg.MutableAccountingConfig()->SetProvisionedUnitsPerSecond(100.0); 
+        cfg.MutableAccountingConfig()->SetProvisionedCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->SetOvershootCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->MutableProvisioned()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableProvisioned()->SetBillingPeriodSec(2); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetBillingPeriodSec(2); 
+        cfg.MutableAccountingConfig()->MutableOvershoot()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableOvershoot()->SetBillingPeriodSec(2); 
+        ctx.AddQuoterResource(cfg); 
+        ctx.AddQuoterResource("/Root/Res"); // With inherited settings. 
+ 
+        auto edge = ctx.Runtime->AllocateEdgeActor(); 
+        auto client = ctx.Runtime->AllocateEdgeActor(); 
+        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult = ctx.SubscribeOnResource(client, edge, "/Root/Res", false, 0); 
+ 
+        TInstant start = ctx.Runtime->GetCurrentTime(); 
+        TDuration interval = TConsumptionHistory::Interval(); 
+        ctx.AccountResources(client, edge, subscribeResult.GetResults(0).GetResourceId(), start, interval, {600.0}); 
+ 
+        if (bills.size() < 3) { 
+            TDispatchOptions opts; 
+            opts.FinalEvents.emplace_back([&bills](IEventHandle&) -> bool { 
+                return bills.size() >= 3; 
+            }); 
+            ctx.Runtime->DispatchEvents(opts); 
+        } 
+ 
+        UNIT_ASSERT_NO_DIFF(bills[0], TString(R"({"usage":{"start":0,"quantity":100,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-provisioned-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n"); 
+        UNIT_ASSERT_NO_DIFF(bills[1], TString(R"({"usage":{"start":0,"quantity":200,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-ondemand-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n"); 
+        UNIT_ASSERT_NO_DIFF(bills[2], TString(R"({"usage":{"start":0,"quantity":300,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-overshoot-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n"); 
+    } 
+ 
+    Y_UNIT_TEST(TestQuoterAccountResourcesPaced) { 
+        TTestContext ctx; 
+        ctx.Setup(); 
+ 
+        std::vector<TString> bills; 
+        ctx.Runtime->SetObserverFunc([&bills](TTestActorRuntimeBase&, TAutoPtr<IEventHandle>& ev) { 
+            if (ev->GetTypeRewrite() == NMetering::TEvMetering::EvWriteMeteringJson) { 
+                bills.push_back(ev->Get<NMetering::TEvMetering::TEvWriteMeteringJson>()->MeteringJson); 
+            } 
+            return TTestActorRuntime::EEventAction::PROCESS; 
+        }); 
+ 
+        NKikimrKesus::TStreamingQuoterResource cfg; 
+        cfg.SetResourcePath("/Root"); 
+        cfg.MutableHierarhicalDRRResourceConfig()->SetMaxUnitsPerSecond(300.0); 
+        cfg.MutableHierarhicalDRRResourceConfig()->SetPrefetchCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->SetReportPeriodMs(1000); 
+        cfg.MutableAccountingConfig()->SetAccountPeriodMs(1000); 
+        cfg.MutableAccountingConfig()->SetCollectPeriodSec(2); 
+        cfg.MutableAccountingConfig()->SetProvisionedUnitsPerSecond(100.0); 
+        cfg.MutableAccountingConfig()->SetProvisionedCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->SetOvershootCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->MutableProvisioned()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableProvisioned()->SetBillingPeriodSec(2); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetBillingPeriodSec(2); 
+        cfg.MutableAccountingConfig()->MutableOvershoot()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableOvershoot()->SetBillingPeriodSec(2); 
+        ctx.AddQuoterResource(cfg); 
+        ctx.AddQuoterResource("/Root/Res"); // With inherited settings. 
+ 
+        auto edge = ctx.Runtime->AllocateEdgeActor(); 
+        auto client = ctx.Runtime->AllocateEdgeActor(); 
+        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult = ctx.SubscribeOnResource(client, edge, "/Root/Res", false, 0); 
+ 
+        TInstant start = ctx.Runtime->GetCurrentTime(); 
+        TDuration interval = TConsumptionHistory::Interval(); 
+        std::vector<double> values; 
+        for (int i = 0; i < 100; i++) { 
+            values.push_back(6); 
+        } 
+        ctx.AccountResources(client, edge, subscribeResult.GetResults(0).GetResourceId(), start, interval, std::move(values)); 
+ 
+        if (bills.size() < 3) { 
+            TDispatchOptions opts; 
+            opts.FinalEvents.emplace_back([&bills](IEventHandle&) -> bool { 
+                return bills.size() >= 3; 
+            }); 
+            ctx.Runtime->DispatchEvents(opts); 
+        } 
+ 
+        UNIT_ASSERT_NO_DIFF(bills[0], TString(R"({"usage":{"start":0,"quantity":199,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-provisioned-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n"); 
+        UNIT_ASSERT_NO_DIFF(bills[1], TString(R"({"usage":{"start":0,"quantity":398,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-ondemand-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n"); 
+        UNIT_ASSERT_NO_DIFF(bills[2], TString(R"({"usage":{"start":0,"quantity":3,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-overshoot-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n"); 
+    } 
+ 
+    Y_UNIT_TEST(TestQuoterAccountResourcesAggregateClients) { 
+        TTestContext ctx; 
+        ctx.Setup(); 
+ 
+        std::vector<TString> bills; 
+        ctx.Runtime->SetObserverFunc([&bills](TTestActorRuntimeBase&, TAutoPtr<IEventHandle>& ev) { 
+            if (ev->GetTypeRewrite() == NMetering::TEvMetering::EvWriteMeteringJson) { 
+                bills.push_back(ev->Get<NMetering::TEvMetering::TEvWriteMeteringJson>()->MeteringJson); 
+            } 
+            return TTestActorRuntime::EEventAction::PROCESS; 
+        }); 
+ 
+        NKikimrKesus::TStreamingQuoterResource cfg; 
+        cfg.SetResourcePath("/Root"); 
+        cfg.MutableHierarhicalDRRResourceConfig()->SetMaxUnitsPerSecond(300.0); 
+        cfg.MutableHierarhicalDRRResourceConfig()->SetPrefetchCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->SetReportPeriodMs(1000); 
+        cfg.MutableAccountingConfig()->SetAccountPeriodMs(1000); 
+        cfg.MutableAccountingConfig()->SetCollectPeriodSec(2); 
+        cfg.MutableAccountingConfig()->SetProvisionedUnitsPerSecond(100.0); 
+        cfg.MutableAccountingConfig()->SetProvisionedCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->SetOvershootCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->MutableProvisioned()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableProvisioned()->SetBillingPeriodSec(2); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetBillingPeriodSec(2); 
+        cfg.MutableAccountingConfig()->MutableOvershoot()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableOvershoot()->SetBillingPeriodSec(2); 
+        ctx.AddQuoterResource(cfg); 
+ 
+        auto edge = ctx.Runtime->AllocateEdgeActor(); 
+        auto client1 = ctx.Runtime->AllocateEdgeActor(); 
+        auto client2 = ctx.Runtime->AllocateEdgeActor(); 
+        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult1 = ctx.SubscribeOnResource(client1, edge, "/Root", false, 0); 
+        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult2 = ctx.SubscribeOnResource(client2, edge, "/Root", false, 0); 
+ 
+        TInstant start = ctx.Runtime->GetCurrentTime(); 
+        TDuration interval = TConsumptionHistory::Interval(); 
+        std::vector<double> values1; 
+        std::vector<double> values2; 
+        for (int i = 0; i < 100; i++) { 
+            values1.push_back(3); 
+            values2.push_back(3); 
+        } 
+        ctx.AccountResources(client1, edge, subscribeResult1.GetResults(0).GetResourceId(), start, interval, std::move(values1)); 
+        ctx.AccountResources(client2, edge, subscribeResult2.GetResults(0).GetResourceId(), start, interval, std::move(values2)); 
+ 
+        if (bills.size() < 3) { 
+            TDispatchOptions opts; 
+            opts.FinalEvents.emplace_back([&bills](IEventHandle&) -> bool { 
+                return bills.size() >= 3; 
+            }); 
+            ctx.Runtime->DispatchEvents(opts); 
+        } 
+ 
+        UNIT_ASSERT_NO_DIFF(bills[0], TString(R"({"usage":{"start":0,"quantity":199,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-provisioned-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n"); 
+        UNIT_ASSERT_NO_DIFF(bills[1], TString(R"({"usage":{"start":0,"quantity":398,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-ondemand-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n"); 
+        UNIT_ASSERT_NO_DIFF(bills[2], TString(R"({"usage":{"start":0,"quantity":3,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-overshoot-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n"); 
+    } 
+ 
+    Y_UNIT_TEST(TestQuoterAccountResourcesAggregateResources) { 
+        TTestContext ctx; 
+        ctx.Setup(); 
+ 
+        std::vector<TString> bills; 
+        ctx.Runtime->SetObserverFunc([&bills](TTestActorRuntimeBase&, TAutoPtr<IEventHandle>& ev) { 
+            if (ev->GetTypeRewrite() == NMetering::TEvMetering::EvWriteMeteringJson) { 
+                bills.push_back(ev->Get<NMetering::TEvMetering::TEvWriteMeteringJson>()->MeteringJson); 
+            } 
+            return TTestActorRuntime::EEventAction::PROCESS; 
+        }); 
+ 
+        NKikimrKesus::TStreamingQuoterResource cfg; 
+        cfg.SetResourcePath("/Root"); 
+        cfg.MutableHierarhicalDRRResourceConfig()->SetMaxUnitsPerSecond(300.0); 
+        cfg.MutableHierarhicalDRRResourceConfig()->SetPrefetchCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->SetReportPeriodMs(1000); 
+        cfg.MutableAccountingConfig()->SetAccountPeriodMs(1000); 
+        cfg.MutableAccountingConfig()->SetCollectPeriodSec(2); 
+        cfg.MutableAccountingConfig()->SetProvisionedUnitsPerSecond(100.0); 
+        cfg.MutableAccountingConfig()->SetProvisionedCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->SetOvershootCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->MutableProvisioned()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableProvisioned()->SetBillingPeriodSec(2); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetBillingPeriodSec(2); 
+        cfg.MutableAccountingConfig()->MutableOvershoot()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableOvershoot()->SetBillingPeriodSec(2); 
+        ctx.AddQuoterResource(cfg); 
+        ctx.AddQuoterResource("/Root/Res1"); // With inherited settings. 
+        ctx.AddQuoterResource("/Root/Res2"); // With inherited settings. 
+ 
+        auto edge = ctx.Runtime->AllocateEdgeActor(); 
+        auto client = ctx.Runtime->AllocateEdgeActor(); 
+        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult1 = ctx.SubscribeOnResource(client, edge, "/Root/Res1", false, 0); 
+        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult2 = ctx.SubscribeOnResource(client, edge, "/Root/Res2", false, 0); 
+ 
+        TInstant start = ctx.Runtime->GetCurrentTime(); 
+        TDuration interval = TConsumptionHistory::Interval(); 
+        std::vector<double> values1; 
+        std::vector<double> values2; 
+        for (int i = 0; i < 100; i++) { 
+            values1.push_back(3); 
+            values2.push_back(3); 
+        } 
+        ctx.AccountResources(client, edge, { 
+            {subscribeResult1.GetResults(0).GetResourceId(), start, interval, std::move(values1)}, 
+            {subscribeResult2.GetResults(0).GetResourceId(), start, interval, std::move(values2)} 
+        }); 
+ 
+        if (bills.size() < 3) { 
+            TDispatchOptions opts; 
+            opts.FinalEvents.emplace_back([&bills](IEventHandle&) -> bool { 
+                return bills.size() >= 3; 
+            }); 
+            ctx.Runtime->DispatchEvents(opts); 
+        } 
+ 
+        UNIT_ASSERT_NO_DIFF(bills[0], TString(R"({"usage":{"start":0,"quantity":199,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-provisioned-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n"); 
+        UNIT_ASSERT_NO_DIFF(bills[1], TString(R"({"usage":{"start":0,"quantity":398,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-ondemand-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n"); 
+        UNIT_ASSERT_NO_DIFF(bills[2], TString(R"({"usage":{"start":0,"quantity":3,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-overshoot-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n"); 
+    } 
+ 
+    Y_UNIT_TEST(TestQuoterAccountResourcesDeduplicateClient) { 
+        TTestContext ctx; 
+        ctx.Setup(); 
+ 
+        std::vector<TString> bills; 
+        ctx.Runtime->SetObserverFunc([&bills](TTestActorRuntimeBase&, TAutoPtr<IEventHandle>& ev) { 
+            if (ev->GetTypeRewrite() == NMetering::TEvMetering::EvWriteMeteringJson) { 
+                bills.push_back(ev->Get<NMetering::TEvMetering::TEvWriteMeteringJson>()->MeteringJson); 
+            } 
+            return TTestActorRuntime::EEventAction::PROCESS; 
+        }); 
+ 
+        NKikimrKesus::TStreamingQuoterResource cfg; 
+        cfg.SetResourcePath("/Root"); 
+        cfg.MutableHierarhicalDRRResourceConfig()->SetMaxUnitsPerSecond(300.0); 
+        cfg.MutableHierarhicalDRRResourceConfig()->SetPrefetchCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->SetReportPeriodMs(1000); 
+        cfg.MutableAccountingConfig()->SetAccountPeriodMs(1000); 
+        cfg.MutableAccountingConfig()->SetCollectPeriodSec(2); 
+        cfg.MutableAccountingConfig()->SetProvisionedUnitsPerSecond(100.0); 
+        cfg.MutableAccountingConfig()->SetProvisionedCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->SetOvershootCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->MutableProvisioned()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableProvisioned()->SetBillingPeriodSec(2); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetBillingPeriodSec(2); 
+        cfg.MutableAccountingConfig()->MutableOvershoot()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableOvershoot()->SetBillingPeriodSec(2); 
+        ctx.AddQuoterResource(cfg); 
+ 
+        auto edge = ctx.Runtime->AllocateEdgeActor(); 
+        auto client = ctx.Runtime->AllocateEdgeActor(); 
+        const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult = ctx.SubscribeOnResource(client, edge, "/Root", false, 0); 
+ 
+        TInstant start = ctx.Runtime->GetCurrentTime(); 
+        TDuration interval = TConsumptionHistory::Interval(); 
+        std::vector<double> values1; 
+        std::vector<double> values2; 
+        for (int i = 0; i < 100; i++) { 
+            values1.push_back(6); 
+            values2.push_back(6); 
+        } 
+        ctx.AccountResources(client, edge, subscribeResult.GetResults(0).GetResourceId(), start, interval, std::move(values1)); 
+        ctx.AccountResources(client, edge, subscribeResult.GetResults(0).GetResourceId(), start, interval, std::move(values2)); 
+ 
+        if (bills.size() < 3) { 
+            TDispatchOptions opts; 
+            opts.FinalEvents.emplace_back([&bills](IEventHandle&) -> bool { 
+                return bills.size() >= 3; 
+            }); 
+            ctx.Runtime->DispatchEvents(opts); 
+        } 
+ 
+        UNIT_ASSERT_NO_DIFF(bills[0], TString(R"({"usage":{"start":0,"quantity":199,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-provisioned-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n"); 
+        UNIT_ASSERT_NO_DIFF(bills[1], TString(R"({"usage":{"start":0,"quantity":398,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-ondemand-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n"); 
+        UNIT_ASSERT_NO_DIFF(bills[2], TString(R"({"usage":{"start":0,"quantity":3,"finish":1,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-overshoot-0-1","cloud_id":"","source_wt":5,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})") + "\n"); 
+    } 
+ 
+    Y_UNIT_TEST(TestQuoterAccountResourcesForgetClient) { 
+        TTestContext ctx; 
+        ctx.Setup(); 
+ 
+        std::vector<TString> bills; 
+        ctx.Runtime->SetObserverFunc([&bills](TTestActorRuntimeBase&, TAutoPtr<IEventHandle>& ev) { 
+            if (ev->GetTypeRewrite() == NMetering::TEvMetering::EvWriteMeteringJson) { 
+                bills.push_back(ev->Get<NMetering::TEvMetering::TEvWriteMeteringJson>()->MeteringJson); 
+            } 
+            return TTestActorRuntime::EEventAction::PROCESS; 
+        }); 
+ 
+        NKikimrKesus::TStreamingQuoterResource cfg; 
+        cfg.SetResourcePath("/Root"); 
+        cfg.MutableHierarhicalDRRResourceConfig()->SetMaxUnitsPerSecond(300.0); 
+        cfg.MutableHierarhicalDRRResourceConfig()->SetPrefetchCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->SetReportPeriodMs(1000); 
+        cfg.MutableAccountingConfig()->SetAccountPeriodMs(1000); 
+        cfg.MutableAccountingConfig()->SetCollectPeriodSec(2); 
+        cfg.MutableAccountingConfig()->SetProvisionedUnitsPerSecond(100.0); 
+        cfg.MutableAccountingConfig()->SetProvisionedCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->SetOvershootCoefficient(1.0); 
+        cfg.MutableAccountingConfig()->MutableProvisioned()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableProvisioned()->SetBillingPeriodSec(2); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableOnDemand()->SetBillingPeriodSec(2); 
+        cfg.MutableAccountingConfig()->MutableOvershoot()->SetEnabled(true); 
+        cfg.MutableAccountingConfig()->MutableOvershoot()->SetBillingPeriodSec(2); 
+        ctx.AddQuoterResource(cfg); 
+ 
+        for (int i = 0; i < 3; i++) { 
+            auto edge = ctx.Runtime->AllocateEdgeActor(); 
+            auto client = ctx.Runtime->AllocateEdgeActor(); 
+            const NKikimrKesus::TEvSubscribeOnResourcesResult subscribeResult = ctx.SubscribeOnResource(client, edge, "/Root", false, 0); 
+ 
+            TInstant begin = TInstant::Seconds(2) + i * TDuration::Seconds(6); 
+            TDuration interval = TConsumptionHistory::Interval(); 
+            std::vector<double> values; 
+            for (int i = 0; i < 100; i++) { 
+                values.push_back(6); 
+            } 
+            ctx.AccountResources(client, edge, subscribeResult.GetResults(0).GetResourceId(), begin, interval, std::move(values)); 
+ 
+            if (bills.size() < 3) { 
+                TDispatchOptions opts; 
+                opts.FinalEvents.emplace_back([&bills](IEventHandle&) -> bool { 
+                    return bills.size() >= 3; 
+                }); 
+                ctx.Runtime->DispatchEvents(opts); 
+            } 
+ 
+            int start = 2 + i * 6; 
+            int finish = start + 1; 
+            int source_wt = start + 5; 
+            UNIT_ASSERT_NO_DIFF(bills[0], Sprintf(R"({"usage":{"start":%d,"quantity":199,"finish":%d,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-provisioned-%d-%d","cloud_id":"","source_wt":%d,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})", start, finish, start, finish, source_wt) + "\n"); 
+            UNIT_ASSERT_NO_DIFF(bills[1], Sprintf(R"({"usage":{"start":%d,"quantity":398,"finish":%d,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-ondemand-%d-%d","cloud_id":"","source_wt":%d,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})", start, finish, start, finish, source_wt) + "\n"); 
+            UNIT_ASSERT_NO_DIFF(bills[2], Sprintf(R"({"usage":{"start":%d,"quantity":3,"finish":%d,"unit":"request_unit","type":"delta"},"tags":{},"id":"Root-overshoot-%d-%d","cloud_id":"","source_wt":%d,"source_id":"","resource_id":"","schema":"","folder_id":"","version":""})", start, finish, start, finish, source_wt) + "\n"); 
+            bills.clear(); 
+        } 
+    } 
+ 
     Y_UNIT_TEST(TestPassesUpdatedPropsToSession) {
         TTestContext ctx;
         ctx.Setup();
diff --git a/ydb/core/kesus/tablet/tx_init.cpp b/ydb/core/kesus/tablet/tx_init.cpp
index 1f3f96ff9f..2f958bcbaf 100644
--- a/ydb/core/kesus/tablet/tx_init.cpp
+++ b/ydb/core/kesus/tablet/tx_init.cpp
@@ -217,7 +217,7 @@ struct TKesusTablet::TTxInit : public TTxBase {
         }
 
         {
-            Self->QuoterResources.SetupBilling(ctx.SelfID, MakeMeteringSink());
+            Self->QuoterResources.SetupBilling(ctx.SelfID, MakeMeteringSink()); 
             auto quoterResourcesRowset = db.Table<Schema::QuoterResources>().Range().Select();
             if (!quoterResourcesRowset.IsReady())
                 return false;
diff --git a/ydb/core/kesus/tablet/ut_helpers.cpp b/ydb/core/kesus/tablet/ut_helpers.cpp
index f559800a76..32ca0e65dc 100644
--- a/ydb/core/kesus/tablet/ut_helpers.cpp
+++ b/ydb/core/kesus/tablet/ut_helpers.cpp
@@ -1,7 +1,7 @@
 #include "ut_helpers.h"
 
 #include <ydb/core/metering/metering.h>
-
+ 
 #include <library/cpp/actors/core/event_pb.h>
 
 #include <algorithm>
@@ -9,62 +9,62 @@
 namespace NKikimr {
 namespace NKesus {
 
-// Write metering events into memory only
-class TFakeMetering : public TActor<TFakeMetering> {
-    std::vector<TString> Jsons;
-
-public:
-    explicit TFakeMetering()
-        : TActor<TFakeMetering>(&TFakeMetering::StateWork)
-    {}
-
-private:
-    STFUNC(StateWork) {
-        switch (ev->GetTypeRewrite()) {
-            HFunc(TEvents::TEvPoisonPill, HandlePoisonPill);
-            HFunc(NMetering::TEvMetering::TEvWriteMeteringJson, HandleWriteMeteringJson);
-        default:
-            HandleUnexpectedEvent(ev, ctx);
-            break;
-        }
-    }
-
-    void HandlePoisonPill(const TEvents::TEvPoisonPill::TPtr& ev, const TActorContext& ctx) {
-        Y_UNUSED(ev);
-        Die(ctx);
-    }
-
-    void HandleWriteMeteringJson(
-        const NMetering::TEvMetering::TEvWriteMeteringJson::TPtr& ev,
-        const TActorContext& ctx)
-    {
-        Y_UNUSED(ctx);
-
-        LOG_DEBUG_S(ctx, NKikimrServices::KESUS_PROXY,
-                    "tests -- TFakeMetering got TEvMetering::TEvWriteMeteringJson");
-
-        const auto* msg = ev->Get();
-
-        Jsons.push_back(msg->MeteringJson);
-    }
-
-    void HandleUnexpectedEvent(STFUNC_SIG)
-    {
-        Y_UNUSED(ctx);
-
-        LOG_DEBUG_S(ctx, NKikimrServices::KESUS_PROXY,
-                    "TFakeMetering:"
-                        << " unhandled event type: " << ev->GetTypeRewrite()
-                        << " event: " << (ev->HasEvent() ? ev->GetBase()->ToString().data() : "serialized?"));
-    }
-};
-
-NActors::TActorId CreateFakeMetering(NActors::TTestActorRuntime &runtime) {
-    NActors::TActorId actorId = runtime.Register(new TFakeMetering());
-    runtime.RegisterService(NMetering::MakeMeteringServiceID(), actorId);
-    return NMetering::MakeMeteringServiceID();
-}
-
+// Write metering events into memory only 
+class TFakeMetering : public TActor<TFakeMetering> { 
+    std::vector<TString> Jsons; 
+ 
+public: 
+    explicit TFakeMetering() 
+        : TActor<TFakeMetering>(&TFakeMetering::StateWork) 
+    {} 
+ 
+private: 
+    STFUNC(StateWork) { 
+        switch (ev->GetTypeRewrite()) { 
+            HFunc(TEvents::TEvPoisonPill, HandlePoisonPill); 
+            HFunc(NMetering::TEvMetering::TEvWriteMeteringJson, HandleWriteMeteringJson); 
+        default: 
+            HandleUnexpectedEvent(ev, ctx); 
+            break; 
+        } 
+    } 
+ 
+    void HandlePoisonPill(const TEvents::TEvPoisonPill::TPtr& ev, const TActorContext& ctx) { 
+        Y_UNUSED(ev); 
+        Die(ctx); 
+    } 
+ 
+    void HandleWriteMeteringJson( 
+        const NMetering::TEvMetering::TEvWriteMeteringJson::TPtr& ev, 
+        const TActorContext& ctx) 
+    { 
+        Y_UNUSED(ctx); 
+ 
+        LOG_DEBUG_S(ctx, NKikimrServices::KESUS_PROXY, 
+                    "tests -- TFakeMetering got TEvMetering::TEvWriteMeteringJson"); 
+ 
+        const auto* msg = ev->Get(); 
+ 
+        Jsons.push_back(msg->MeteringJson); 
+    } 
+ 
+    void HandleUnexpectedEvent(STFUNC_SIG) 
+    { 
+        Y_UNUSED(ctx); 
+ 
+        LOG_DEBUG_S(ctx, NKikimrServices::KESUS_PROXY, 
+                    "TFakeMetering:" 
+                        << " unhandled event type: " << ev->GetTypeRewrite() 
+                        << " event: " << (ev->HasEvent() ? ev->GetBase()->ToString().data() : "serialized?")); 
+    } 
+}; 
+ 
+NActors::TActorId CreateFakeMetering(NActors::TTestActorRuntime &runtime) { 
+    NActors::TActorId actorId = runtime.Register(new TFakeMetering()); 
+    runtime.RegisterService(NMetering::MakeMeteringServiceID(), actorId); 
+    return NMetering::MakeMeteringServiceID(); 
+} 
+ 
 TTestContext::TTestContext()
     : TabletType(TTabletTypes::KESUS)
     , TabletId(MakeTabletID(0, 0, 1))
@@ -86,8 +86,8 @@ void TTestContext::Setup(ui32 nodeCount, bool useRealThreads) {
         options.FinalEvents.emplace_back(TEvTablet::EvBoot);
         Runtime->DispatchEvents(options);
     }
-
-    CreateFakeMetering(*Runtime);
+ 
+    CreateFakeMetering(*Runtime); 
 }
 
 void TTestContext::Finalize() {
@@ -854,29 +854,29 @@ void TTestContext::UpdateConsumptionState(const TActorId& client, const TActorId
     UpdateConsumptionState(client, edge, {TResourceConsumingInfo(id, consume, amount, status)});
 }
 
-void TTestContext::AccountResources(const TActorId& client, const TActorId& edge, const std::vector<TResourceAccountInfo>& info) {
-    const ui64 cookie = RandomNumber<ui64>();
-    auto req = MakeHolder<TEvKesus::TEvAccountResources>();
-    ActorIdToProto(client, req->Record.MutableActorID());
-    req->Record.MutableResourcesInfo()->Reserve(info.size());
-    for (const TResourceAccountInfo& res : info) {
-        auto* reqRes = req->Record.AddResourcesInfo();
-        reqRes->SetResourceId(res.Id);
-        reqRes->SetStartUs(res.Start.MicroSeconds());
-        reqRes->SetIntervalUs(res.Interval.MicroSeconds());
-        for (double value : res.Amount) {
-            reqRes->AddAmount(value);
-        }
-    }
-
-    SendFromEdge(edge, std::move(req), cookie);
-    ExpectEdgeEvent<TEvKesus::TEvAccountResourcesAck>(edge, cookie);
-}
-
-void TTestContext::AccountResources(const TActorId& client, const TActorId& edge, ui64 id, TInstant start, TDuration interval, std::vector<double>&& amount) {
-    AccountResources(client, edge, {TResourceAccountInfo(id, start, interval, std::move(amount))});
-}
-
+void TTestContext::AccountResources(const TActorId& client, const TActorId& edge, const std::vector<TResourceAccountInfo>& info) { 
+    const ui64 cookie = RandomNumber<ui64>(); 
+    auto req = MakeHolder<TEvKesus::TEvAccountResources>(); 
+    ActorIdToProto(client, req->Record.MutableActorID()); 
+    req->Record.MutableResourcesInfo()->Reserve(info.size()); 
+    for (const TResourceAccountInfo& res : info) { 
+        auto* reqRes = req->Record.AddResourcesInfo(); 
+        reqRes->SetResourceId(res.Id); 
+        reqRes->SetStartUs(res.Start.MicroSeconds()); 
+        reqRes->SetIntervalUs(res.Interval.MicroSeconds()); 
+        for (double value : res.Amount) { 
+            reqRes->AddAmount(value); 
+        } 
+    } 
+ 
+    SendFromEdge(edge, std::move(req), cookie); 
+    ExpectEdgeEvent<TEvKesus::TEvAccountResourcesAck>(edge, cookie); 
+} 
+ 
+void TTestContext::AccountResources(const TActorId& client, const TActorId& edge, ui64 id, TInstant start, TDuration interval, std::vector<double>&& amount) { 
+    AccountResources(client, edge, {TResourceAccountInfo(id, start, interval, std::move(amount))}); 
+} 
+ 
 NKikimrKesus::TEvGetQuoterResourceCountersResult TTestContext::GetQuoterResourceCounters() {
     const ui64 cookie = RandomNumber<ui64>();
     const auto edge = Runtime->AllocateEdgeActor();
diff --git a/ydb/core/kesus/tablet/ut_helpers.h b/ydb/core/kesus/tablet/ut_helpers.h
index 8f487a3033..ca1cbfbf71 100644
--- a/ydb/core/kesus/tablet/ut_helpers.h
+++ b/ydb/core/kesus/tablet/ut_helpers.h
@@ -291,29 +291,29 @@ struct TTestContext {
         Ydb::StatusIds::StatusCode ExpectedStatus;
     };
 
-    struct TResourceAccountInfo {
-        ui64 Id = 0;
-        TInstant Start;
-        TDuration Interval;
-        std::vector<double> Amount;
-
-        TResourceAccountInfo(ui64 id, TInstant start, TDuration interval, std::vector<double>&& amount)
-            : Id(id)
-            , Start(start)
-            , Interval(interval)
-            , Amount(std::move(amount))
-        {}
-    };
-
+    struct TResourceAccountInfo { 
+        ui64 Id = 0; 
+        TInstant Start; 
+        TDuration Interval; 
+        std::vector<double> Amount; 
+ 
+        TResourceAccountInfo(ui64 id, TInstant start, TDuration interval, std::vector<double>&& amount) 
+            : Id(id) 
+            , Start(start) 
+            , Interval(interval) 
+            , Amount(std::move(amount)) 
+        {} 
+    }; 
+ 
     NKikimrKesus::TEvSubscribeOnResourcesResult SubscribeOnResources(const TActorId& client, const TActorId& edge, const std::vector<TResourceConsumingInfo>& info);
     NKikimrKesus::TEvSubscribeOnResourcesResult SubscribeOnResource(const TActorId& client, const TActorId& edge, const TString& path, bool startConsuming, double amount = 0.0, Ydb::StatusIds::StatusCode status = Ydb::StatusIds::SUCCESS);
 
     void UpdateConsumptionState(const TActorId& client, const TActorId& edge, const std::vector<TResourceConsumingInfo>& info);
     void UpdateConsumptionState(const TActorId& client, const TActorId& edge, ui64 id, bool consume, double amount = 0.0, Ydb::StatusIds::StatusCode status = Ydb::StatusIds::SUCCESS);
 
-    void AccountResources(const TActorId& client, const TActorId& edge, const std::vector<TResourceAccountInfo>& info);
-    void AccountResources(const TActorId& client, const TActorId& edge, ui64 id, TInstant start, TDuration interval, std::vector<double>&& amount);
-
+    void AccountResources(const TActorId& client, const TActorId& edge, const std::vector<TResourceAccountInfo>& info); 
+    void AccountResources(const TActorId& client, const TActorId& edge, ui64 id, TInstant start, TDuration interval, std::vector<double>&& amount); 
+ 
     NKikimrKesus::TEvGetQuoterResourceCountersResult GetQuoterResourceCounters();
 };
 
diff --git a/ydb/core/kesus/tablet/ya.make b/ydb/core/kesus/tablet/ya.make
index 02c34c7fce..d80425dfff 100644
--- a/ydb/core/kesus/tablet/ya.make
+++ b/ydb/core/kesus/tablet/ya.make
@@ -10,7 +10,7 @@ SRCS(
     probes.cpp
     quoter_resource_tree.cpp
     quoter_runtime.cpp
-    rate_accounting.cpp
+    rate_accounting.cpp 
     schema.cpp
     tablet_db.cpp
     tablet_html.cpp
diff --git a/ydb/core/keyvalue/keyvalue_flat_impl.h b/ydb/core/keyvalue/keyvalue_flat_impl.h
index 292f2feff9..af1702921c 100644
--- a/ydb/core/keyvalue/keyvalue_flat_impl.h
+++ b/ydb/core/keyvalue/keyvalue_flat_impl.h
@@ -26,9 +26,9 @@
 #include <ydb/core/protos/counters_keyvalue.pb.h>
 #include <util/string/escape.h>
 
-// Uncomment the following macro to enable consistency check before every transactions in TTxRequest
-//#define KIKIMR_KEYVALUE_CONSISTENCY_CHECKS
-
+// Uncomment the following macro to enable consistency check before every transactions in TTxRequest 
+//#define KIKIMR_KEYVALUE_CONSISTENCY_CHECKS 
+ 
 namespace NKikimr {
 namespace NKeyValue {
 
@@ -76,29 +76,29 @@ protected:
                     return true;
                 }
                 Self.State.UpdateResourceMetrics(ctx);
-            }
+            } 
             Self.State.InitExecute(Self.TabletID(), KeyValueActorId, txc.Generation, db, ctx, Self.Info());
             LOG_DEBUG_S(ctx, NKikimrServices::KEYVALUE, "KeyValue# " << txc.Tablet
                     << " TTxInit flat Execute returns true");
-            return true;
-        }
+            return true; 
+        } 
 
         static bool LoadStateFromDB(TKeyValueState& state, NTable::TDatabase& db) {
             state.Clear();
-            // Just walk through the DB and read all the keys and values
+            // Just walk through the DB and read all the keys and values 
             const std::array<ui32, 2> tags {{ KEY_TAG, VALUE_TAG }};
             auto mode = NTable::ELookup::GreaterOrEqualThan;
             auto iter = db.Iterate(TABLE_ID, {}, tags, mode);
 
             if (!db.Precharge(TABLE_ID, {}, {}, tags, 0, -1, -1))
-                return false;
+                return false; 
 
             while (iter->Next(NTable::ENext::Data) == NTable::EReady::Data) {
                 const auto &row = iter->Row();
-
+ 
                 TString key(row.Get(0).AsBuf());
                 TString value(row.Get(1).AsBuf());
-
+ 
                 state.Load(key, value);
                 if (state.GetIsDamaged()) {
                     return true;
@@ -130,7 +130,7 @@ protected:
         bool Execute(NTabletFlatExecutor::TTransactionContext &txc, const TActorContext &ctx) override {
             LOG_DEBUG_S(ctx, NKikimrServices::KEYVALUE, "KeyValue# " << txc.Tablet << " TTxRequest Execute");
             if (!CheckConsistency(txc)) {
-                return false;
+                return false; 
             }
             if (Self->State.GetIsDamaged()) {
                 return true;
@@ -147,22 +147,22 @@ protected:
             LOG_DEBUG_S(ctx, NKikimrServices::KEYVALUE, "KeyValue# " << Self->TabletID() << " TTxRequest Complete");
             Self->State.RequestComplete(Intermediate, ctx, Self->Info());
         }
-
-        bool CheckConsistency(NTabletFlatExecutor::TTransactionContext &txc) {
-#ifdef KIKIMR_KEYVALUE_CONSISTENCY_CHECKS
-            TKeyValueState state;
+ 
+        bool CheckConsistency(NTabletFlatExecutor::TTransactionContext &txc) { 
+#ifdef KIKIMR_KEYVALUE_CONSISTENCY_CHECKS 
+            TKeyValueState state; 
             if (!TTxInit::LoadStateFromDB(state, txc.DB)) {
-                return false;
-            }
+                return false; 
+            } 
             Y_VERIFY(!state.IsDamaged());
-            state.VerifyEqualIndex(Self->State);
-            txc.DB.NoMoreReadsForTx();
-            return true;
-#else
+            state.VerifyEqualIndex(Self->State); 
+            txc.DB.NoMoreReadsForTx(); 
+            return true; 
+#else 
             Y_UNUSED(txc);
-            return true;
-#endif
-        }
+            return true; 
+#endif 
+        } 
     };
 
     struct TTxMonitoring : public NTabletFlatExecutor::ITransaction {
diff --git a/ydb/core/keyvalue/keyvalue_state.cpp b/ydb/core/keyvalue/keyvalue_state.cpp
index 6b31c463f8..2b3472d4c3 100644
--- a/ydb/core/keyvalue/keyvalue_state.cpp
+++ b/ydb/core/keyvalue/keyvalue_state.cpp
@@ -3182,76 +3182,76 @@ bool TKeyValueState::ConvertRange(const NKikimrClient::TKeyValueRequest::TKeyRan
 }
 
 TString TKeyValueState::Dump() const {
-    TStringStream ss;
-    ss << "=== INDEX ===\n";
-    for (auto& x : Index) {
+    TStringStream ss; 
+    ss << "=== INDEX ===\n"; 
+    for (auto& x : Index) { 
         const TString& k = x.first;
-        const TIndexRecord& v = x.second;
-        ss << k << "=== ctime:" << v.CreationUnixTime;
-        for (const TIndexRecord::TChainItem& y : v.Chain) {
-            ss << " -> " << y.LogoBlobId << ":" << y.Offset;
-        }
-        ss << "\n";
-    }
-    ss << "=== END ===\n";
-    return ss.Str();
-}
-
-void TKeyValueState::VerifyEqualIndex(const TKeyValueState& state) const {
-    auto i2 = state.Index.cbegin(), e2 = state.Index.cend();
-    int i = 0;
-    for (auto i1 = Index.cbegin(), e1 = Index.cend(); i1 != e1; ++i, ++i1, ++i2) {
+        const TIndexRecord& v = x.second; 
+        ss << k << "=== ctime:" << v.CreationUnixTime; 
+        for (const TIndexRecord::TChainItem& y : v.Chain) { 
+            ss << " -> " << y.LogoBlobId << ":" << y.Offset; 
+        } 
+        ss << "\n"; 
+    } 
+    ss << "=== END ===\n"; 
+    return ss.Str(); 
+} 
+ 
+void TKeyValueState::VerifyEqualIndex(const TKeyValueState& state) const { 
+    auto i2 = state.Index.cbegin(), e2 = state.Index.cend(); 
+    int i = 0; 
+    for (auto i1 = Index.cbegin(), e1 = Index.cend(); i1 != e1; ++i, ++i1, ++i2) { 
         Y_VERIFY(i2 != e2, "index length differs. Dump:\n%s\n%s\n", Dump().data(), state.Dump().data());
         const TString& k1 = i1->first;
         const TString& k2 = i2->first;
         Y_VERIFY(k1 == k2, "index key #%d differs. Dump:\n%s\n%s\n", i, Dump().data(), state.Dump().data());
-        const TIndexRecord& v1 = i1->second;
-        const TIndexRecord& v2 = i2->second;
+        const TIndexRecord& v1 = i1->second; 
+        const TIndexRecord& v2 = i2->second; 
         Y_VERIFY(v1 == v2, "index value #%d differs. Dump:\n%s\n%s\n", i, Dump().data(), state.Dump().data());
-    }
+    } 
     Y_VERIFY(i2 == e2, "index length differs. Dump:\n%s\n%s\n", Dump().data(), state.Dump().data());
-}
-
+} 
+ 
 void TKeyValueState::RenderHTMLPage(IOutputStream &out) const {
-    HTML(out) {
-        H2() {out << "KeyValue Tablet";}
-        UL_CLASS("nav nav-tabs") {
-            LI_CLASS("active") {
+    HTML(out) { 
+        H2() {out << "KeyValue Tablet";} 
+        UL_CLASS("nav nav-tabs") { 
+            LI_CLASS("active") { 
                 out << "<a href=\"#database\" data-toggle=\"tab\">Database</a>";
-            }
-            LI() {
+            } 
+            LI() { 
                 out << "<a href=\"#refcounts\" data-toggle=\"tab\">RefCounts</a>";
-            }
-            LI() {
+            } 
+            LI() { 
                 out << "<a href=\"#trash\" data-toggle=\"tab\">Trash</a>";
-            }
+            } 
             LI() {
                 out << "<a href=\"#channelstat\" data-toggle=\"tab\">Channel Stat</a>";
             }
-        }
-        DIV_CLASS("tab-content") {
-            DIV_CLASS_ID("tab-pane fade in active", "database") {
-                TABLE_SORTABLE_CLASS("table") {
-                    TABLEHEAD() {
-                        TABLER() {
-                            TABLEH() {out << "Idx";}
-                            TABLEH() {out << "Key";}
-                            TABLEH() {out << "Value Size";}
-                            TABLEH() {out << "Creation UnixTime";}
-                            TABLEH() {out << "Storage Channel";}
-                            TABLEH() {out << "LogoBlobIds";}
-                        }
-                    }
-                    TABLEBODY() {
+        } 
+        DIV_CLASS("tab-content") { 
+            DIV_CLASS_ID("tab-pane fade in active", "database") { 
+                TABLE_SORTABLE_CLASS("table") { 
+                    TABLEHEAD() { 
+                        TABLER() { 
+                            TABLEH() {out << "Idx";} 
+                            TABLEH() {out << "Key";} 
+                            TABLEH() {out << "Value Size";} 
+                            TABLEH() {out << "Creation UnixTime";} 
+                            TABLEH() {out << "Storage Channel";} 
+                            TABLEH() {out << "LogoBlobIds";} 
+                        } 
+                    } 
+                    TABLEBODY() { 
                         ui64 idx = 1;
                         for (auto it = Index.begin(); it != Index.end(); ++it) {
-                            TABLER() {
-                                TABLED() {out << idx;}
+                            TABLER() { 
+                                TABLED() {out << idx;} 
                                 ++idx;
                                 TABLED() {out << EscapeC(it->first);}
-                                TABLED() {out << it->second.GetFullValueSize();}
-                                TABLED() {out << it->second.CreationUnixTime;}
-                                TABLED() {
+                                TABLED() {out << it->second.GetFullValueSize();} 
+                                TABLED() {out << it->second.CreationUnixTime;} 
+                                TABLED() { 
                                     NKikimrClient::TKeyValueRequest::EStorageChannel storageChannel =
                                         NKikimrClient::TKeyValueRequest::MAIN;
                                     if (it->second.Chain.size()) {
@@ -3266,9 +3266,9 @@ void TKeyValueState::RenderHTMLPage(IOutputStream &out) const {
                                     }
                                     out << NKikimrClient::TKeyValueRequest::EStorageChannel_Name(
                                         storageChannel);
-                                }
+                                } 
 
-                                TABLED() {
+                                TABLED() { 
                                     for (ui32 i = 0; i < it->second.Chain.size(); ++i) {
                                         if (i > 0) {
                                             out << "<br/>";
@@ -3279,54 +3279,54 @@ void TKeyValueState::RenderHTMLPage(IOutputStream &out) const {
                                             out << it->second.Chain[i].LogoBlobId.ToString();
                                         }
                                     }
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-            DIV_CLASS_ID("tab-pane fade", "refcounts") {
-                TABLE_SORTABLE_CLASS("table") {
-                    TABLEHEAD() {
-                        TABLER() {
-                            TABLEH() {out << "Idx";}
-                            TABLEH() {out << "LogoBlobId";}
-                            TABLEH() {out << "RefCount";}
+                                } 
+                            } 
                         }
-                    }
-                    TABLEBODY() {
+                    } 
+                } 
+            } 
+            DIV_CLASS_ID("tab-pane fade", "refcounts") { 
+                TABLE_SORTABLE_CLASS("table") { 
+                    TABLEHEAD() { 
+                        TABLER() { 
+                            TABLEH() {out << "Idx";} 
+                            TABLEH() {out << "LogoBlobId";} 
+                            TABLEH() {out << "RefCount";} 
+                        } 
+                    } 
+                    TABLEBODY() { 
                         ui32 idx = 1;
                         for (const auto& kv : RefCounts) {
-                            TABLER() {
-                                TABLED() {out << idx;}
-                                TABLED() {out << kv.first.ToString();}
-                                TABLED() {out << kv.second;}
-                            }
+                            TABLER() { 
+                                TABLED() {out << idx;} 
+                                TABLED() {out << kv.first.ToString();} 
+                                TABLED() {out << kv.second;} 
+                            } 
                             ++idx;
                         }
-                    }
-                }
-            }
-            DIV_CLASS_ID("tab-pane fade", "trash") {
-                TABLE_SORTABLE_CLASS("table") {
-                    TABLEHEAD() {
-                        TABLER() {
-                            TABLEH() {out << "Idx";}
-                            TABLEH() {out << "LogoBlobId";}
-                        }
-                    }
-                    TABLEBODY() {
+                    } 
+                } 
+            } 
+            DIV_CLASS_ID("tab-pane fade", "trash") { 
+                TABLE_SORTABLE_CLASS("table") { 
+                    TABLEHEAD() { 
+                        TABLER() { 
+                            TABLEH() {out << "Idx";} 
+                            TABLEH() {out << "LogoBlobId";} 
+                        } 
+                    } 
+                    TABLEBODY() { 
                         ui64 idx = 1;
                         for (auto it = Trash.begin(); it != Trash.end(); ++it) {
-                            TABLER() {
-                                TABLED() {out << idx;}
+                            TABLER() { 
+                                TABLED() {out << idx;} 
                                 ++idx;
-                                TABLED() {out << *it;}
-                            }
+                                TABLED() {out << *it;} 
+                            } 
                         }
-                    }
-                }
-            }
+                    } 
+                } 
+            } 
             DIV_CLASS_ID("tab-pane fade", "channelstat") {
                 TABLE_SORTABLE_CLASS("table") {
                     TABLEHEAD() {
@@ -3362,10 +3362,10 @@ void TKeyValueState::RenderHTMLPage(IOutputStream &out) const {
                 }
             }
 
-        }
-    }
+        } 
+    } 
 }
-
+ 
 void TKeyValueState::MonChannelStat(NJson::TJsonValue& out) const {
     for (size_t i = 0; i < ChannelDataUsage.size(); ++i) {
         if (UsedChannels[i]) {
diff --git a/ydb/core/keyvalue/keyvalue_state.h b/ydb/core/keyvalue/keyvalue_state.h
index f57a69d35d..dd09dd3728 100644
--- a/ydb/core/keyvalue/keyvalue_state.h
+++ b/ydb/core/keyvalue/keyvalue_state.h
@@ -712,9 +712,9 @@ public:
         return res;
     }
 
-public: // For testing
+public: // For testing 
     TString Dump() const;
-    void VerifyEqualIndex(const TKeyValueState& state) const;
+    void VerifyEqualIndex(const TKeyValueState& state) const; 
 };
 
 } // NKeyValue
diff --git a/ydb/core/kqp/kqp_ic_gateway.cpp b/ydb/core/kqp/kqp_ic_gateway.cpp
index 47489a9bd5..47c1318032 100644
--- a/ydb/core/kqp/kqp_ic_gateway.cpp
+++ b/ydb/core/kqp/kqp_ic_gateway.cpp
@@ -1219,12 +1219,12 @@ public:
             if (!CheckCluster(cluster)) {
                 return InvalidCluster<TGenericResult>(cluster);
             }
-
-            // FIXME: should be defined in grpc_services/rpc_calls.h, but cause cyclic dependency
-            using namespace NGRpcService;
-            using TEvAlterTableRequest = TGRpcRequestValidationWrapper<TRpcServices::EvAlterTable, Ydb::Table::AlterTableRequest, Ydb::Table::AlterTableResponse, true, TRateLimiterMode::Rps>;
-
-            return SendLocalRpcRequestNoResult<TEvAlterTableRequest>(std::move(req), Database, GetTokenCompat());
+ 
+            // FIXME: should be defined in grpc_services/rpc_calls.h, but cause cyclic dependency 
+            using namespace NGRpcService; 
+            using TEvAlterTableRequest = TGRpcRequestValidationWrapper<TRpcServices::EvAlterTable, Ydb::Table::AlterTableRequest, Ydb::Table::AlterTableResponse, true, TRateLimiterMode::Rps>; 
+ 
+            return SendLocalRpcRequestNoResult<TEvAlterTableRequest>(std::move(req), Database, GetTokenCompat()); 
         }
         catch (yexception& e) {
             return MakeFuture(ResultFromException<TGenericResult>(e));
@@ -1273,12 +1273,12 @@ public:
 
             Ydb::Table::DropTableRequest dropTable;
             dropTable.set_path(table);
-
-            // FIXME: should be defined in grpc_services/rpc_calls.h, but cause cyclic dependency
-            using namespace NGRpcService;
-            using TEvDropTableRequest = TGRpcRequestWrapper<TRpcServices::EvDropTable, Ydb::Table::DropTableRequest, Ydb::Table::DropTableResponse, true, TRateLimiterMode::Rps>;
-
-            return SendLocalRpcRequestNoResult<TEvDropTableRequest>(std::move(dropTable), Database, GetTokenCompat());
+ 
+            // FIXME: should be defined in grpc_services/rpc_calls.h, but cause cyclic dependency 
+            using namespace NGRpcService; 
+            using TEvDropTableRequest = TGRpcRequestWrapper<TRpcServices::EvDropTable, Ydb::Table::DropTableRequest, Ydb::Table::DropTableResponse, true, TRateLimiterMode::Rps>; 
+ 
+            return SendLocalRpcRequestNoResult<TEvDropTableRequest>(std::move(dropTable), Database, GetTokenCompat()); 
         }
         catch (yexception& e) {
             return MakeFuture(ResultFromException<TGenericResult>(e));
diff --git a/ydb/core/metering/bill_record.cpp b/ydb/core/metering/bill_record.cpp
index 04776d5ea0..eb1a4cd109 100644
--- a/ydb/core/metering/bill_record.cpp
+++ b/ydb/core/metering/bill_record.cpp
@@ -1,4 +1,4 @@
-#include "bill_record.h"
+#include "bill_record.h" 
 
 #include <library/cpp/json/json_writer.h>
 
@@ -59,4 +59,4 @@ TBillRecord::TUsage TBillRecord::RequestUnits(ui64 quantity, TInstant now) {
     return RequestUnits(quantity, now, now);
 }
 
-}   // NKikimr
+}   // NKikimr 
diff --git a/ydb/core/metering/bill_record.h b/ydb/core/metering/bill_record.h
index 2959f7f29b..1144c74c18 100644
--- a/ydb/core/metering/bill_record.h
+++ b/ydb/core/metering/bill_record.h
@@ -65,6 +65,6 @@ struct TBillRecord {
 #undef BILL_RECORD_FIELD_DEFAULT
 #undef BILL_RECORD_FIELD
 #undef BILL_RECORD_FIELD_SETTER
-};
+}; 
 
-}   // NKikimr
+}   // NKikimr 
diff --git a/ydb/core/metering/time_grid.h b/ydb/core/metering/time_grid.h
index ce1630d02d..0c4bedd0d4 100644
--- a/ydb/core/metering/time_grid.h
+++ b/ydb/core/metering/time_grid.h
@@ -4,7 +4,7 @@
 
 namespace NKikimr {
 
-    // Time grid taking into account the features of billing slots
+    // Time grid taking into account the features of billing slots 
     struct  TTimeGrid {
         struct TSlot {
             TInstant Start;
@@ -16,14 +16,14 @@ namespace NKikimr {
             {}
         };
 
-        TDuration Period;
+        TDuration Period; 
 
         TTimeGrid(TDuration period)
             : Period(period)
         {
             Y_VERIFY(Period >= TDuration::Seconds(1));
-            Y_VERIFY(Period <= TDuration::Hours(1));
-            Y_VERIFY(TDuration::Hours(1).MicroSeconds() % Period.MicroSeconds() == 0);
+            Y_VERIFY(Period <= TDuration::Hours(1)); 
+            Y_VERIFY(TDuration::Hours(1).MicroSeconds() % Period.MicroSeconds() == 0); 
         }
 
         const TSlot Get(TInstant now) const {
@@ -45,4 +45,4 @@ namespace NKikimr {
         }
     };
 
-}   // namespace NKikimr
+}   // namespace NKikimr 
diff --git a/ydb/core/metering/time_grid_ut.cpp b/ydb/core/metering/time_grid_ut.cpp
index 756a934e09..9d16067a8e 100644
--- a/ydb/core/metering/time_grid_ut.cpp
+++ b/ydb/core/metering/time_grid_ut.cpp
@@ -1,57 +1,57 @@
-#include <library/cpp/testing/unittest/registar.h>
-#include "time_grid.h"
-
-namespace NKikimr {
-
-Y_UNIT_TEST_SUITE(TTimeGridTest) {
-    Y_UNIT_TEST(TimeGrid) {
-        {
-            TTimeGrid grid(TDuration::Seconds(5));
-
-            for (ui32 shift = 0; shift < 5; ++shift) {
-                TInstant curTime = TInstant::Hours(100) + TDuration::Seconds(shift);
-                auto slot = grid.Get(curTime);
-
-                UNIT_ASSERT_VALUES_EQUAL(slot.Start, TInstant::Hours(100));
-                UNIT_ASSERT_VALUES_EQUAL(slot.End, TInstant::Hours(100)  + TDuration::Seconds(4));
-
-                UNIT_ASSERT_VALUES_EQUAL(grid.GetNext(slot).Start, TInstant::Hours(100) + TDuration::Seconds(5));
-                UNIT_ASSERT_VALUES_EQUAL(grid.GetNext(slot).End, TInstant::Hours(100) + TDuration::Seconds(9));
-
-                UNIT_ASSERT_VALUES_EQUAL(grid.GetPrev(slot).Start, TInstant::Hours(100) - TDuration::Seconds(5));
-                UNIT_ASSERT_VALUES_EQUAL(grid.GetPrev(slot).End, TInstant::Hours(100) - TDuration::Seconds(1));
-            }
-
-            for (ui32 shift = 5; shift < 10; ++shift) {
-                TInstant curTime = TInstant::Hours(100) + TDuration::Seconds(shift);
-                auto slot = grid.Get(curTime);
-
-                UNIT_ASSERT_VALUES_EQUAL(slot.Start, TInstant::Hours(100) + TDuration::Seconds(5));
-                UNIT_ASSERT_VALUES_EQUAL(slot.End, TInstant::Hours(100) + TDuration::Seconds(9));
-
-                UNIT_ASSERT_VALUES_EQUAL(grid.GetNext(slot).Start, TInstant::Hours(100) + TDuration::Seconds(10));
-                UNIT_ASSERT_VALUES_EQUAL(grid.GetNext(slot).End, TInstant::Hours(100) + TDuration::Seconds(14));
-
-                UNIT_ASSERT_VALUES_EQUAL(grid.GetPrev(slot).Start, TInstant::Hours(100));
-                UNIT_ASSERT_VALUES_EQUAL(grid.GetPrev(slot).End, TInstant::Hours(100) + TDuration::Seconds(4));
-            }
-
-            for (ui32 shift = 55; shift < 60; ++shift) {
-                TInstant curTime = TInstant::Hours(100) + TDuration::Seconds(shift);
-                auto slot = grid.Get(curTime);
-
-                UNIT_ASSERT_VALUES_EQUAL(slot.Start, TInstant::Hours(100) + TDuration::Seconds(55));
-                UNIT_ASSERT_VALUES_EQUAL(slot.End, TInstant::Hours(100) + TDuration::Seconds(59));
-
-                UNIT_ASSERT_VALUES_EQUAL(grid.GetNext(slot).Start, TInstant::Hours(100) + TDuration::Seconds(60));
-                UNIT_ASSERT_VALUES_EQUAL(grid.GetNext(slot).End, TInstant::Hours(100) + TDuration::Seconds(64));
-
-                UNIT_ASSERT_VALUES_EQUAL(grid.GetPrev(slot).Start, TInstant::Hours(100) + TDuration::Seconds(50));
-                UNIT_ASSERT_VALUES_EQUAL(grid.GetPrev(slot).End, TInstant::Hours(100) + TDuration::Seconds(54));
-            }
-        }
-    }
-
-}
-
-}   // namespace NKikimr
+#include <library/cpp/testing/unittest/registar.h> 
+#include "time_grid.h" 
+ 
+namespace NKikimr { 
+ 
+Y_UNIT_TEST_SUITE(TTimeGridTest) { 
+    Y_UNIT_TEST(TimeGrid) { 
+        { 
+            TTimeGrid grid(TDuration::Seconds(5)); 
+ 
+            for (ui32 shift = 0; shift < 5; ++shift) { 
+                TInstant curTime = TInstant::Hours(100) + TDuration::Seconds(shift); 
+                auto slot = grid.Get(curTime); 
+ 
+                UNIT_ASSERT_VALUES_EQUAL(slot.Start, TInstant::Hours(100)); 
+                UNIT_ASSERT_VALUES_EQUAL(slot.End, TInstant::Hours(100)  + TDuration::Seconds(4)); 
+ 
+                UNIT_ASSERT_VALUES_EQUAL(grid.GetNext(slot).Start, TInstant::Hours(100) + TDuration::Seconds(5)); 
+                UNIT_ASSERT_VALUES_EQUAL(grid.GetNext(slot).End, TInstant::Hours(100) + TDuration::Seconds(9)); 
+ 
+                UNIT_ASSERT_VALUES_EQUAL(grid.GetPrev(slot).Start, TInstant::Hours(100) - TDuration::Seconds(5)); 
+                UNIT_ASSERT_VALUES_EQUAL(grid.GetPrev(slot).End, TInstant::Hours(100) - TDuration::Seconds(1)); 
+            } 
+ 
+            for (ui32 shift = 5; shift < 10; ++shift) { 
+                TInstant curTime = TInstant::Hours(100) + TDuration::Seconds(shift); 
+                auto slot = grid.Get(curTime); 
+ 
+                UNIT_ASSERT_VALUES_EQUAL(slot.Start, TInstant::Hours(100) + TDuration::Seconds(5)); 
+                UNIT_ASSERT_VALUES_EQUAL(slot.End, TInstant::Hours(100) + TDuration::Seconds(9)); 
+ 
+                UNIT_ASSERT_VALUES_EQUAL(grid.GetNext(slot).Start, TInstant::Hours(100) + TDuration::Seconds(10)); 
+                UNIT_ASSERT_VALUES_EQUAL(grid.GetNext(slot).End, TInstant::Hours(100) + TDuration::Seconds(14)); 
+ 
+                UNIT_ASSERT_VALUES_EQUAL(grid.GetPrev(slot).Start, TInstant::Hours(100)); 
+                UNIT_ASSERT_VALUES_EQUAL(grid.GetPrev(slot).End, TInstant::Hours(100) + TDuration::Seconds(4)); 
+            } 
+ 
+            for (ui32 shift = 55; shift < 60; ++shift) { 
+                TInstant curTime = TInstant::Hours(100) + TDuration::Seconds(shift); 
+                auto slot = grid.Get(curTime); 
+ 
+                UNIT_ASSERT_VALUES_EQUAL(slot.Start, TInstant::Hours(100) + TDuration::Seconds(55)); 
+                UNIT_ASSERT_VALUES_EQUAL(slot.End, TInstant::Hours(100) + TDuration::Seconds(59)); 
+ 
+                UNIT_ASSERT_VALUES_EQUAL(grid.GetNext(slot).Start, TInstant::Hours(100) + TDuration::Seconds(60)); 
+                UNIT_ASSERT_VALUES_EQUAL(grid.GetNext(slot).End, TInstant::Hours(100) + TDuration::Seconds(64)); 
+ 
+                UNIT_ASSERT_VALUES_EQUAL(grid.GetPrev(slot).Start, TInstant::Hours(100) + TDuration::Seconds(50)); 
+                UNIT_ASSERT_VALUES_EQUAL(grid.GetPrev(slot).End, TInstant::Hours(100) + TDuration::Seconds(54)); 
+            } 
+        } 
+    } 
+ 
+} 
+ 
+}   // namespace NKikimr 
diff --git a/ydb/core/metering/ut/ya.make b/ydb/core/metering/ut/ya.make
index c619715354..2d1b0f80bd 100644
--- a/ydb/core/metering/ut/ya.make
+++ b/ydb/core/metering/ut/ya.make
@@ -1,14 +1,14 @@
 UNITTEST_FOR(ydb/core/metering)
-
-OWNER(
-    svc
-    g:kikimr
-)
-
-SIZE(SMALL)
-
-SRCS(
-    time_grid_ut.cpp
-)
-
-END()
+ 
+OWNER( 
+    svc 
+    g:kikimr 
+) 
+ 
+SIZE(SMALL) 
+ 
+SRCS( 
+    time_grid_ut.cpp 
+) 
+ 
+END() 
diff --git a/ydb/core/metering/ya.make b/ydb/core/metering/ya.make
index a1e9a4d339..5babf9a62e 100644
--- a/ydb/core/metering/ya.make
+++ b/ydb/core/metering/ya.make
@@ -1,7 +1,7 @@
 RECURSE_FOR_TESTS(
     ut
 )
-
+ 
 LIBRARY()
 
 OWNER(
@@ -10,18 +10,18 @@ OWNER(
 )
 
 SRCS(
-    bill_record.cpp
-    bill_record.h
+    bill_record.cpp 
+    bill_record.h 
     metering.cpp
     metering.h
-    time_grid.h
+    time_grid.h 
 )
 
 GENERATE_ENUM_SERIALIZATION(bill_record.h)
-
+ 
 PEERDIR(
     library/cpp/actors/core
-    library/cpp/json
+    library/cpp/json 
     library/cpp/logger
     ydb/core/base
 )
diff --git a/ydb/core/mind/hive/hive_impl.cpp b/ydb/core/mind/hive/hive_impl.cpp
index 58ca2ac3e4..2c9d88db3f 100644
--- a/ydb/core/mind/hive/hive_impl.cpp
+++ b/ydb/core/mind/hive/hive_impl.cpp
@@ -836,7 +836,7 @@ void THive::OnActivateExecutor(const TActorContext&) {
     HiveGeneration = Executor()->Generation();
     RootDomainKey = TSubDomainKey(domain.SchemeRoot, 1);
     RootDomainName = "/" + domain.Name;
-    Executor()->RegisterExternalTabletCounters(TabletCountersPtr);
+    Executor()->RegisterExternalTabletCounters(TabletCountersPtr); 
     ResourceProfiles = AppData()->ResourceProfiles ? AppData()->ResourceProfiles : new TResourceProfiles;
     BuildLocalConfig();
     ClusterConfig = AppData()->HiveConfig;
@@ -1448,7 +1448,7 @@ void THive::SetCounterTabletsTotal(ui64 tabletsTotal) {
 
 void THive::UpdateCounterTabletsTotal(i64 tabletsTotalDiff) {
     if (TabletCounters != nullptr) {
-        auto& counter = TabletCounters->Simple()[NHive::COUNTER_TABLETS_TOTAL];
+        auto& counter = TabletCounters->Simple()[NHive::COUNTER_TABLETS_TOTAL]; 
         TabletsTotal = counter.Get() + tabletsTotalDiff;
         counter.Set(TabletsTotal);
         TabletCounters->Simple()[NHive::COUNTER_STATE_DONE].Set(TabletsTotal == TabletsAlive ? 1 : 0);
@@ -1457,7 +1457,7 @@ void THive::UpdateCounterTabletsTotal(i64 tabletsTotalDiff) {
 
 void THive::UpdateCounterTabletsAlive(i64 tabletsAliveDiff) {
     if (TabletCounters != nullptr) {
-        auto& counter = TabletCounters->Simple()[NHive::COUNTER_TABLETS_ALIVE];
+        auto& counter = TabletCounters->Simple()[NHive::COUNTER_TABLETS_ALIVE]; 
         TabletsAlive = counter.Get() + tabletsAliveDiff;
         counter.Set(TabletsAlive);
         TabletCounters->Simple()[NHive::COUNTER_STATE_DONE].Set(TabletsTotal == TabletsAlive ? 1 : 0);
@@ -1466,7 +1466,7 @@ void THive::UpdateCounterTabletsAlive(i64 tabletsAliveDiff) {
 
 void THive::UpdateCounterBootQueueSize(ui64 bootQueueSize) {
     if (TabletCounters != nullptr) {
-        auto& counter = TabletCounters->Simple()[NHive::COUNTER_BOOTQUEUE_SIZE];
+        auto& counter = TabletCounters->Simple()[NHive::COUNTER_BOOTQUEUE_SIZE]; 
         counter.Set(bootQueueSize);
     }
 }
diff --git a/ydb/core/mind/hive/hive_impl.h b/ydb/core/mind/hive/hive_impl.h
index 70c4530fee..c88fcab233 100644
--- a/ydb/core/mind/hive/hive_impl.h
+++ b/ydb/core/mind/hive/hive_impl.h
@@ -359,7 +359,7 @@ protected:
 
     THashMap<ui32, TEvInterconnect::TNodeInfo> NodesInfo;
     TTabletCountersBase* TabletCounters;
-    TAutoPtr<TTabletCountersBase> TabletCountersPtr;
+    TAutoPtr<TTabletCountersBase> TabletCountersPtr; 
     i32 BalancerProgress; // all values below 0 mean that balancer is not active (-1 = dead, -2 = starting)
     std::unordered_set<TNodeId> BalancerNodes; // all nodes, affected by running balancers
 
diff --git a/ydb/core/mind/hive/monitoring.cpp b/ydb/core/mind/hive/monitoring.cpp
index 7e9a83b354..0ea5eb3c49 100644
--- a/ydb/core/mind/hive/monitoring.cpp
+++ b/ydb/core/mind/hive/monitoring.cpp
@@ -92,86 +92,86 @@ public:
     }
 
     void RenderHTMLPage(IOutputStream &out) {
-        HTML(out) {
-             UL_CLASS("nav nav-tabs") {
-                 LI_CLASS("active") {
+        HTML(out) { 
+             UL_CLASS("nav nav-tabs") { 
+                 LI_CLASS("active") { 
                      out << "<a href=\"#known-tablets\" data-toggle=\"tab\">Tablets</a>";
-                 }
-                 LI() {
+                 } 
+                 LI() { 
                      out << "<a href=\"#per-node-stats\" data-toggle=\"tab\">Nodes</a>";
-                 }
-             }
-             DIV_CLASS("tab-content") {
-                 DIV_CLASS_ID("tab-pane fade in active", "known-tablets") {
-                     TABLE_SORTABLE_CLASS("table") {
-                         TABLEHEAD() {
-                              TABLER() {
-                                  TABLEH() {out << "Tablet";}
-                                  TABLEH() {out << "ID";}
-                                  TABLEH() {out << "KnownGeneration";}
+                 } 
+             } 
+             DIV_CLASS("tab-content") { 
+                 DIV_CLASS_ID("tab-pane fade in active", "known-tablets") { 
+                     TABLE_SORTABLE_CLASS("table") { 
+                         TABLEHEAD() { 
+                              TABLER() { 
+                                  TABLEH() {out << "Tablet";} 
+                                  TABLEH() {out << "ID";} 
+                                  TABLEH() {out << "KnownGeneration";} 
                                   TABLEH() {out << "LeaderNode";}
-                                  TABLEH() {out << "State";}
-                                  TABLEH_CLASS("sorter-false") {}
-                              }
-                          }
-                          TABLEBODY() {
+                                  TABLEH() {out << "State";} 
+                                  TABLEH_CLASS("sorter-false") {} 
+                              } 
+                          } 
+                          TABLEBODY() { 
                              ui64 index = 0;
                              for (const auto &tabletPair : TabletInfo) {
                                  const ui64 tabletId = tabletPair.first;
                                  const auto &x = tabletPair.second;
-                                 TABLER() {
+                                 TABLER() { 
                                       out << "<td data-text='" << index << "'>" << "<a href=\"../tablets?TabletID="
                                                   << tabletId << "\">"
                                                   << TTabletTypes::TypeToStr((TTabletTypes::EType)x.TabletType)
                                                   << "</a></td>";
-                                      TABLED() {out << tabletId;}
-                                      TABLED() {out << x.KnownGeneration;}
+                                      TABLED() {out << tabletId;} 
+                                      TABLED() {out << x.KnownGeneration;} 
                                       TABLED_CLASS(x.LeaderNode ? "" : "warning")
                                              {out << x.LeaderNode;}
-                                      TABLED() {out << ETabletStateName(x.TabletState);}
-                                      TABLED() {out << " <a href=\"../tablets?SsId="
+                                      TABLED() {out << ETabletStateName(x.TabletState);} 
+                                      TABLED() {out << " <a href=\"../tablets?SsId=" 
                                                   << tabletId << "\">"
                                                   << "<span class=\"glyphicon glyphicon-tasks\""
                                                   << " title=\"State Storage\"/>"
-                                                  << "</a>";}
-                                 }
+                                                  << "</a>";} 
+                                 } 
                                  ++index;
                              }
-                         }
-                     }
-                 }
-                 DIV_CLASS_ID("tab-pane fade", "per-node-stats") {
-                     TABLE_SORTABLE_CLASS("table") {
-                          TABLEHEAD() {
-                              TABLER() {
-                                  TABLEH() {out << "NodeId";}
-                                  TABLEH() {out << "Count";}
-                              }
-                          }
-                          TABLEBODY() {
+                         } 
+                     } 
+                 } 
+                 DIV_CLASS_ID("tab-pane fade", "per-node-stats") { 
+                     TABLE_SORTABLE_CLASS("table") { 
+                          TABLEHEAD() { 
+                              TABLER() { 
+                                  TABLEH() {out << "NodeId";} 
+                                  TABLEH() {out << "Count";} 
+                              } 
+                          } 
+                          TABLEBODY() { 
                               for (const auto &nodePair : NodeInfo) {
                                   const ui32 nodeId = nodePair.first;
                                   const auto &x = nodePair.second;
                                   if (nodeId != 0 || x.Local) {
-                                      TABLER() {
+                                      TABLER() { 
                                           if (nodeId == 0) {
                                              TABLED_CLASS("danger") {out << "w/o leader node"; }
                                           } else {
-                                             TABLED() {out << nodeId; }
+                                             TABLED() {out << nodeId; } 
                                           }
                                           if (x.Local) {
-                                             TABLED() {out << x.TabletsOn;}
+                                             TABLED() {out << x.TabletsOn;} 
                                           } else {
-                                             TABLED_CLASS("danger") {out << "down";}
+                                             TABLED_CLASS("danger") {out << "down";} 
                                           }
-                                      }
+                                      } 
                                   }
                               }
-                         }
-                     }
-                 }
-             }
-        }
+                         } 
+                     } 
+                 } 
+             } 
+        } 
     }
 };
 
diff --git a/ydb/core/mon/mon.cpp b/ydb/core/mon/mon.cpp
index d4722266f3..0c3411297e 100644
--- a/ydb/core/mon/mon.cpp
+++ b/ydb/core/mon/mon.cpp
@@ -399,9 +399,9 @@ namespace NActors {
         TBase::Register(new NMonitoring::TVersionMonPage);
         TBase::Register(new NMonitoring::TTablesorterCssMonPage);
         TBase::Register(new NMonitoring::TTablesorterJsMonPage);
-
-        NLwTraceMonPage::RegisterPages((TBase*)this);
-        NLwTraceMonPage::ProbeRegistry().AddProbesList(LWTRACE_GET_PROBES(ACTORLIB_PROVIDER));
+ 
+        NLwTraceMonPage::RegisterPages((TBase*)this); 
+        NLwTraceMonPage::ProbeRegistry().AddProbesList(LWTRACE_GET_PROBES(ACTORLIB_PROVIDER)); 
         NLwTraceMonPage::ProbeRegistry().AddProbesList(LWTRACE_GET_PROBES(MONITORING_PROVIDER));
         TBase::Start();
     }
diff --git a/ydb/core/node_whiteboard/node_whiteboard.h b/ydb/core/node_whiteboard/node_whiteboard.h
index cdf7601807..f9dadf5747 100644
--- a/ydb/core/node_whiteboard/node_whiteboard.h
+++ b/ydb/core/node_whiteboard/node_whiteboard.h
@@ -127,12 +127,12 @@ struct TEvWhiteboard{
             Record.SetTotalSize(totalSize);
             Record.SetState(static_cast<NKikimrBlobStorage::TPDiskState::E>(state));
         }
-
-        TEvPDiskStateUpdate(ui32 pDiskId, NKikimrWhiteboard::EFlag realtime, NKikimrWhiteboard::EFlag device) {
-            Record.SetPDiskId(pDiskId);
-            Record.SetRealtime(realtime);
-            Record.SetDevice(device);
-        }
+ 
+        TEvPDiskStateUpdate(ui32 pDiskId, NKikimrWhiteboard::EFlag realtime, NKikimrWhiteboard::EFlag device) { 
+            Record.SetPDiskId(pDiskId); 
+            Record.SetRealtime(realtime); 
+            Record.SetDevice(device); 
+        } 
     };
 
     struct TEvPDiskStateRequest : public TEventPB<TEvPDiskStateRequest, NKikimrWhiteboard::TEvPDiskStateRequest, EvPDiskStateRequest> {};
diff --git a/ydb/core/persqueue/partition.cpp b/ydb/core/persqueue/partition.cpp
index cc8e2419cf..85d8bc80e5 100644
--- a/ydb/core/persqueue/partition.cpp
+++ b/ydb/core/persqueue/partition.cpp
@@ -175,35 +175,35 @@ private:
 
 void HtmlOutput(IOutputStream& out, const TString& line, const std::deque<std::pair<TKey, ui32>>& keys)
 {
-    HTML(out) {
-        TABLE() {
-        TABLEHEAD() {
-            TABLER() {
-                TABLEH() {out << line;}
-            }
-        }
-        TABLEBODY() {
-            TABLER() {
-                TABLEH() {out << "offset";}
+    HTML(out) { 
+        TABLE() { 
+        TABLEHEAD() { 
+            TABLER() { 
+                TABLEH() {out << line;} 
+            } 
+        } 
+        TABLEBODY() { 
+            TABLER() { 
+                TABLEH() {out << "offset";} 
                 for (auto& p: keys) {
-                    TABLED() {out << p.first.GetOffset();}
+                    TABLED() {out << p.first.GetOffset();} 
                 }
-            }
-            TABLER() {
-                TABLEH() {out << "partNo";}
+            } 
+            TABLER() { 
+                TABLEH() {out << "partNo";} 
                 for (auto& p: keys) {
-                    TABLED() {out << p.first.GetPartNo();}
+                    TABLED() {out << p.first.GetPartNo();} 
                 }
-            }
-            TABLER() {
-                TABLEH() {out << "size";}
+            } 
+            TABLER() { 
+                TABLEH() {out << "size";} 
                 for (auto& p: keys) {
-                    TABLED() {out << p.second;}
+                    TABLED() {out << p.second;} 
                 }
-            }
-        }
-        }
-    }
+            } 
+        } 
+        } 
+    } 
 }
 
 
@@ -566,35 +566,35 @@ void TPartition::HandleMonitoring(TEvPQ::TEvMonRequest::TPtr& ev, const TActorCo
         res.push_back(out.Str()); out.Clear();
     }
     out << Config.DebugString(); res.push_back(out.Str()); out.Clear();
-    HTML(out)
+    HTML(out) 
     {
-        DIV_CLASS_ID("tab-pane fade", Sprintf("partition_%u", ui32(Partition))) {
-            TABLE_SORTABLE_CLASS("table") {
-                TABLEHEAD() {
-                    TABLER() {
-                        TABLEH() {out << "Type";}
-                        TABLEH() {out << "Pos";}
-                        TABLEH() {out << "timestamp";}
-                        TABLEH() {out << "Offset";}
-                        TABLEH() {out << "PartNo";}
-                        TABLEH() {out << "Count";}
-                        TABLEH() {out << "InternalPartsCount";}
-                        TABLEH() {out << "Size";}
-                    }
-                }
-                TABLEBODY() {
+        DIV_CLASS_ID("tab-pane fade", Sprintf("partition_%u", ui32(Partition))) { 
+            TABLE_SORTABLE_CLASS("table") { 
+                TABLEHEAD() { 
+                    TABLER() { 
+                        TABLEH() {out << "Type";} 
+                        TABLEH() {out << "Pos";} 
+                        TABLEH() {out << "timestamp";} 
+                        TABLEH() {out << "Offset";} 
+                        TABLEH() {out << "PartNo";} 
+                        TABLEH() {out << "Count";} 
+                        TABLEH() {out << "InternalPartsCount";} 
+                        TABLEH() {out << "Size";} 
+                    } 
+                } 
+                TABLEBODY() { 
                     ui32 i = 0;
                     for (auto& d: DataKeysBody) {
-                        TABLER() {
-                            TABLED() {out << "DataBody";}
-                            TABLED() {out << i++;}
+                        TABLER() { 
+                            TABLED() {out << "DataBody";} 
+                            TABLED() {out << i++;} 
                             TABLED() {out << ToStringLocalTimeUpToSeconds(d.Timestamp);}
-                            TABLED() {out << d.Key.GetOffset();}
-                            TABLED() {out << d.Key.GetPartNo();}
-                            TABLED() {out << d.Key.GetCount();}
-                            TABLED() {out << d.Key.GetInternalPartsCount();}
-                            TABLED() {out << d.Size;}
-                        }
+                            TABLED() {out << d.Key.GetOffset();} 
+                            TABLED() {out << d.Key.GetPartNo();} 
+                            TABLED() {out << d.Key.GetCount();} 
+                            TABLED() {out << d.Key.GetInternalPartsCount();} 
+                            TABLED() {out << d.Size;} 
+                        } 
                     }
                     ui32 currentLevel = 0;
                     for (ui32 p = 0; p < HeadKeys.size(); ++p) {
@@ -602,67 +602,67 @@ void TPartition::HandleMonitoring(TEvPQ::TEvMonRequest::TPtr& ev, const TActorCo
                         while (currentLevel + 1 < TotalLevels && size < CompactLevelBorder[currentLevel + 1])
                             ++currentLevel;
                         Y_VERIFY(size < CompactLevelBorder[currentLevel]);
-                        TABLER() {
-                            TABLED() {out << "DataHead[" << currentLevel << "]";}
-                            TABLED() {out << i++;}
+                        TABLER() { 
+                            TABLED() {out << "DataHead[" << currentLevel << "]";} 
+                            TABLED() {out << i++;} 
                             TABLED() {out << ToStringLocalTimeUpToSeconds(HeadKeys[p].Timestamp);}
-                            TABLED() {out << HeadKeys[p].Key.GetOffset();}
-                            TABLED() {out << HeadKeys[p].Key.GetPartNo();}
-                            TABLED() {out << HeadKeys[p].Key.GetCount();}
-                            TABLED() {out << HeadKeys[p].Key.GetInternalPartsCount();}
-                            TABLED() {out << size;}
-                        }
-                    }
-                }
-            }
-
-            TABLE_SORTABLE_CLASS("table") {
-                TABLEHEAD() {
-                    TABLER() {
-                        TABLEH() {out << "GapStartOffset";}
-                        TABLEH() {out << "GapEndOffset";}
-                        TABLEH() {out << "GapSize";}
-                        TABLEH() {out << "id";}
+                            TABLED() {out << HeadKeys[p].Key.GetOffset();} 
+                            TABLED() {out << HeadKeys[p].Key.GetPartNo();} 
+                            TABLED() {out << HeadKeys[p].Key.GetCount();} 
+                            TABLED() {out << HeadKeys[p].Key.GetInternalPartsCount();} 
+                            TABLED() {out << size;} 
+                        } 
                     }
-                }
+                } 
+            } 
+
+            TABLE_SORTABLE_CLASS("table") { 
+                TABLEHEAD() { 
+                    TABLER() { 
+                        TABLEH() {out << "GapStartOffset";} 
+                        TABLEH() {out << "GapEndOffset";} 
+                        TABLEH() {out << "GapSize";} 
+                        TABLEH() {out << "id";} 
+                    } 
+                } 
                 ui32 i = 0;
-                TABLEBODY() {
+                TABLEBODY() { 
                     for (auto& d: GapOffsets) {
-                        TABLER() {
-                            TABLED() {out << d.first;}
-                            TABLED() {out << d.second;}
-                            TABLED() {out << (d.second - d.first);}
-                            TABLED() {out << (i++);}
-                        }
+                        TABLER() { 
+                            TABLED() {out << d.first;} 
+                            TABLED() {out << d.second;} 
+                            TABLED() {out << (d.second - d.first);} 
+                            TABLED() {out << (i++);} 
+                        } 
                     }
                     if (!DataKeysBody.empty() && DataKeysBody.back().Key.GetOffset() + DataKeysBody.back().Key.GetCount() < Head.Offset) {
-                        TABLER() {
-                            TABLED() {out << (DataKeysBody.back().Key.GetOffset() + DataKeysBody.back().Key.GetCount());}
-                            TABLED() {out << Head.Offset;}
-                            TABLED() {out << (Head.Offset - (DataKeysBody.back().Key.GetOffset() + DataKeysBody.back().Key.GetCount()));}
-                            TABLED() {out << (i++);}
-                        }
+                        TABLER() { 
+                            TABLED() {out << (DataKeysBody.back().Key.GetOffset() + DataKeysBody.back().Key.GetCount());} 
+                            TABLED() {out << Head.Offset;} 
+                            TABLED() {out << (Head.Offset - (DataKeysBody.back().Key.GetOffset() + DataKeysBody.back().Key.GetCount()));} 
+                            TABLED() {out << (i++);} 
+                        } 
 
                     }
-                }
-            }
+                } 
+            } 
 
 
-            TABLE_SORTABLE_CLASS("table") {
-                TABLEHEAD() {
-                    TABLER() {
-                        TABLEH() {out << "SourceId";}
-                        TABLEH() {out << "SeqNo";}
-                        TABLEH() {out << "Offset";}
-                        TABLEH() {out << "WriteTimestamp";}
+            TABLE_SORTABLE_CLASS("table") { 
+                TABLEHEAD() { 
+                    TABLER() { 
+                        TABLEH() {out << "SourceId";} 
+                        TABLEH() {out << "SeqNo";} 
+                        TABLEH() {out << "Offset";} 
+                        TABLEH() {out << "WriteTimestamp";} 
                         TABLEH() {out << "CreateTimestamp";}
                         TABLEH() {out << "Explicit";}
                         TABLEH() {out << "State";}
-                    }
-                }
-                TABLEBODY() {
+                    } 
+                } 
+                TABLEBODY() { 
                     for (const auto& [sourceId, sourceIdInfo]: SourceIdStorage.GetInMemorySourceIds()) {
-                        TABLER() {
+                        TABLER() { 
                             TABLED() {out << EncodeHtmlPcdata(EscapeC(sourceId));}
                             TABLED() {out << sourceIdInfo.SeqNo;}
                             TABLED() {out << sourceIdInfo.Offset;}
@@ -670,33 +670,33 @@ void TPartition::HandleMonitoring(TEvPQ::TEvMonRequest::TPtr& ev, const TActorCo
                             TABLED() {out << ToStringLocalTimeUpToSeconds(sourceIdInfo.CreateTimestamp);}
                             TABLED() {out << (sourceIdInfo.Explicit ? "true" : "false");}
                             TABLED() {out << sourceIdInfo.State;}
-                        }
+                        } 
                     }
-                }
-            }
-            TABLE_SORTABLE_CLASS("table") {
-                TABLEHEAD() {
-                    TABLER() {
-                        TABLEH() {out << "user";}
-                        TABLEH() {out << "offset";}
-                        TABLEH() {out << "lag";}
+                } 
+            } 
+            TABLE_SORTABLE_CLASS("table") { 
+                TABLEHEAD() { 
+                    TABLER() { 
+                        TABLEH() {out << "user";} 
+                        TABLEH() {out << "offset";} 
+                        TABLEH() {out << "lag";} 
                         TABLEH() {out << "ReadFromTimestamp";}
-                        TABLEH() {out << "WriteTimestamp";}
-                        TABLEH() {out << "CreateTimestamp";}
+                        TABLEH() {out << "WriteTimestamp";} 
+                        TABLEH() {out << "CreateTimestamp";} 
                         TABLEH() {out << "ReadOffset";}
                         TABLEH() {out << "ReadWriteTimestamp";}
                         TABLEH() {out << "ReadCreateTimestamp";}
                         TABLEH() {out << "ReadOffsetRewindSum";}
                         TABLEH() {out << "ActiveReads";}
                         TABLEH() {out << "Subscriptions";}
-                    }
-                }
-                TABLEBODY() {
+                    } 
+                } 
+                TABLEBODY() { 
                     for (auto& d: UsersInfoStorage.GetAll()) {
-                        TABLER() {
-                            TABLED() {out << EncodeHtmlPcdata(d.first);}
-                            TABLED() {out << d.second.Offset;}
-                            TABLED() {out << (EndOffset - d.second.Offset);}
+                        TABLER() { 
+                            TABLED() {out << EncodeHtmlPcdata(d.first);} 
+                            TABLED() {out << d.second.Offset;} 
+                            TABLED() {out << (EndOffset - d.second.Offset);} 
                             TABLED() {out << ToStringLocalTimeUpToSeconds(d.second.ReadFromTimestamp);}
                             TABLED() {out << ToStringLocalTimeUpToSeconds(d.second.WriteTimestamp);}
                             TABLED() {out << ToStringLocalTimeUpToSeconds(d.second.CreateTimestamp);}
@@ -706,12 +706,12 @@ void TPartition::HandleMonitoring(TEvPQ::TEvMonRequest::TPtr& ev, const TActorCo
                             TABLED() {out << (d.second.ReadOffsetRewindSum);}
                             TABLED() {out << d.second.ActiveReads;}
                             TABLED() {out << d.second.Subscriptions;}
-                        }
+                        } 
                     }
-                }
-            }
-        }
-    }
+                } 
+            } 
+        } 
+    } 
 
     ctx.Send(ev->Sender, new TEvPQ::TEvMonResponse(Partition, res, out.Str()));
 }
diff --git a/ydb/core/persqueue/pq_impl.cpp b/ydb/core/persqueue/pq_impl.cpp
index 9937dbe561..25d9db450d 100644
--- a/ydb/core/persqueue/pq_impl.cpp
+++ b/ydb/core/persqueue/pq_impl.cpp
@@ -451,44 +451,44 @@ private:
         ui32 mx = 0;
         for (auto& r: Results) mx = Max<ui32>(mx, r.second.size());
 
-        HTML(str) {
-            H2() {str << "PersQueue Tablet";}
-            H3() {str << "Topic: " << TopicName;}
+        HTML(str) { 
+            H2() {str << "PersQueue Tablet";} 
+            H3() {str << "Topic: " << TopicName;} 
             H4() {str << "inflight: " << Inflight;}
-            UL_CLASS("nav nav-tabs") {
-                LI_CLASS("active") {
+            UL_CLASS("nav nav-tabs") { 
+                LI_CLASS("active") { 
                     str << "<a href=\"#main\" data-toggle=\"tab\">main</a>";
-                }
-                LI() {
+                } 
+                LI() { 
                     str << "<a href=\"#cache\" data-toggle=\"tab\">cache</a>";
-                }
+                } 
                 for (auto& r: Results) {
-                    LI() {
+                    LI() { 
                         str << "<a href=\"#partition_" << r.first << "\" data-toggle=\"tab\">" << r.first << "</a>";
-                    }
+                    } 
                 }
-            }
-            DIV_CLASS("tab-content") {
-                DIV_CLASS_ID("tab-pane fade in active", "main") {
-                    TABLE() {
+            } 
+            DIV_CLASS("tab-content") { 
+                DIV_CLASS_ID("tab-pane fade in active", "main") { 
+                    TABLE() { 
                         for (ui32 i = 0; i < mx; ++i) {
-                            TABLER() {
+                            TABLER() { 
                                 for (auto& r : Results) {
-                                    TABLED() {
+                                    TABLED() { 
                                         if (r.second.size() > i)
                                             str << r.second[i];
-                                    }
+                                    } 
                                 }
-                            }
+                            } 
                         }
-                    }
-                }
+                    } 
+                } 
                 for (auto& s: Str) {
                     str << s;
                 }
-            }
-            H3() {str << "<a href=\"app?TabletID=" << TabletID << "&kv=1\">KV-tablet internals</a>";}
-        }
+            } 
+            H3() {str << "<a href=\"app?TabletID=" << TabletID << "&kv=1\">KV-tablet internals</a>";} 
+        } 
         LOG_DEBUG_S(ctx, NKikimrServices::PERSQUEUE, "Answer TEvRemoteHttpInfoRes: to " << Sender << " self " << ctx.SelfID);
         ctx.Send(Sender, new NMon::TEvRemoteHttpInfoRes(str.Str()));
         Die(ctx);
diff --git a/ydb/core/persqueue/pq_l2_cache.cpp b/ydb/core/persqueue/pq_l2_cache.cpp
index e56642c39a..9f355e50c9 100644
--- a/ydb/core/persqueue/pq_l2_cache.cpp
+++ b/ydb/core/persqueue/pq_l2_cache.cpp
@@ -214,30 +214,30 @@ void TPersQueueCacheL2::Handle(NMon::TEvHttpInfo::TPtr& ev, const TActorContext&
 TString TPersQueueCacheL2::HttpForm() const
 {
     TStringStream str;
-    HTML(str) {
-        FORM_CLASS("form-horizontal") {
-            DIV_CLASS("row") {
-                PRE() {
+    HTML(str) { 
+        FORM_CLASS("form-horizontal") { 
+            DIV_CLASS("row") { 
+                PRE() { 
                         str << "CacheLimit (MB): " << (MaxSize>>20) << Endl;
                         str << "CacheSize (MB): " << (CurrentSize>>20) << Endl;
                         str << "Count of blobs: " << Cache.Size() << Endl;
                         str << "Min RetentionTime: " << KeepTime << Endl;
                         str << "RetentionTime: " << RetentionTime << Endl;
-                }
-            }
-            DIV_CLASS("control-group") {
-                LABEL_CLASS_FOR("control-label", "inputTo") {str << "New Chache Limit";}
-                DIV_CLASS("controls") {
+                } 
+            } 
+            DIV_CLASS("control-group") { 
+                LABEL_CLASS_FOR("control-label", "inputTo") {str << "New Chache Limit";} 
+                DIV_CLASS("controls") { 
                     str << "<input type=\"number\" id=\"inputTo\" placeholder=\"CacheLimit (MB)\" name=\"newCacheLimit\">";
-                }
-            }
-            DIV_CLASS("control-group") {
-                DIV_CLASS("controls") {
+                } 
+            } 
+            DIV_CLASS("control-group") { 
+                DIV_CLASS("controls") { 
                     str << "<button type=\"submit\" name=\"submit\" class=\"btn btn-primary\">Change</button>";
-                }
-            }
-        }
-    }
+                } 
+            } 
+        } 
+    } 
     return str.Str();
 }
 
diff --git a/ydb/core/persqueue/read.h b/ydb/core/persqueue/read.h
index d0bc79c692..58bbea4bfd 100644
--- a/ydb/core/persqueue/read.h
+++ b/ydb/core/persqueue/read.h
@@ -312,37 +312,37 @@ namespace NPQ {
         void HandleMonitoring(TEvPQ::TEvMonRequest::TPtr& ev, const TActorContext& ctx)
         {
             TStringStream out;
-            HTML(out)
+            HTML(out) 
             {
-                DIV_CLASS_ID("tab-pane fade", "cache") {
-                    TABLE_SORTABLE_CLASS("table") {
-                        TABLEHEAD() {
-                            TABLER() {
-                                TABLEH() {out << "Partition";}
-                                TABLEH() {out << "Offset";}
-                                TABLEH() {out << "Count";}
-                                TABLEH() {out << "Size";}
-                                TABLEH() {out << "Time";}
-                            }
-                        }
-                        TABLEBODY() {
+                DIV_CLASS_ID("tab-pane fade", "cache") { 
+                    TABLE_SORTABLE_CLASS("table") { 
+                        TABLEHEAD() { 
+                            TABLER() { 
+                                TABLEH() {out << "Partition";} 
+                                TABLEH() {out << "Offset";} 
+                                TABLEH() {out << "Count";} 
+                                TABLEH() {out << "Size";} 
+                                TABLEH() {out << "Time";} 
+                            } 
+                        } 
+                        TABLEBODY() { 
                             for (const auto& c: Cache.CachedMap()) {
                                 const TCacheValue::TPtr data = c.second.GetBlob();
                                 if (!data)
                                     continue;
-                                TABLER() {
-                                    TABLED() {out << int(c.first.Partition);}
-                                    TABLED() {out << c.first.Offset;}
-                                    TABLED() {out << c.first.Count;}
-                                    TABLED() {out << data->GetValue().size();}
-                                    TABLED() {out << ToStringLocalTimeUpToSeconds(data->GetAccessTime());}
-                                }
+                                TABLER() { 
+                                    TABLED() {out << int(c.first.Partition);} 
+                                    TABLED() {out << c.first.Offset;} 
+                                    TABLED() {out << c.first.Count;} 
+                                    TABLED() {out << data->GetValue().size();} 
+                                    TABLED() {out << ToStringLocalTimeUpToSeconds(data->GetAccessTime());} 
+                                } 
                             }
 
-                        }
-                    }
-                }
-            }
+                        } 
+                    } 
+                } 
+            } 
             ctx.Send(ev->Sender, new TEvPQ::TEvMonResponse(Max<ui32>(), TVector<TString>(), out.Str()));
         }
 
diff --git a/ydb/core/protos/blobstorage_pdisk_config.proto b/ydb/core/protos/blobstorage_pdisk_config.proto
index 00ea5c7e22..0b34228e09 100644
--- a/ydb/core/protos/blobstorage_pdisk_config.proto
+++ b/ydb/core/protos/blobstorage_pdisk_config.proto
@@ -64,7 +64,7 @@ message TPDiskConfig {
 
     // Once SortFreeChunksPerItems chunks are released, free chuks are sorted
     optional uint64 SortFreeChunksPerItems = 4;
-
+ 
 
     optional uint32 SectorSize = 6;
     optional uint32 ChunkSize = 7;
diff --git a/ydb/core/protos/config.proto b/ydb/core/protos/config.proto
index d64169d4fc..2f74931236 100644
--- a/ydb/core/protos/config.proto
+++ b/ydb/core/protos/config.proto
@@ -31,11 +31,11 @@ package NKikimrConfig;
 option java_package = "ru.yandex.kikimr.proto";
 
 message TAffinity {
-    repeated uint32 X = 1; // DEPRECATED: Use `CpuList` instead
-
-    // Numerical list of processors. The numbers are separated by commas and may include ranges. For example: 0,5,7,9-11
-    optional string CpuList = 2; // Processors to include. Use all processor if not set.
-    optional string ExcludeCpuList = 3; // Exclude specified processors from `CpuList` (or all processors if not set)
+    repeated uint32 X = 1; // DEPRECATED: Use `CpuList` instead 
+ 
+    // Numerical list of processors. The numbers are separated by commas and may include ranges. For example: 0,5,7,9-11 
+    optional string CpuList = 2; // Processors to include. Use all processor if not set. 
+    optional string ExcludeCpuList = 3; // Exclude specified processors from `CpuList` (or all processors if not set) 
 }
 
 message TActorSystemConfig {
@@ -43,11 +43,11 @@ message TActorSystemConfig {
         enum EType {
             BASIC = 1;
             IO = 2;
-            UNITED = 3;
+            UNITED = 3; 
         };
 
         optional EType Type = 1;
-        optional uint32 Threads = 2;
+        optional uint32 Threads = 2; 
         optional uint64 SpinThreshold = 3;
         optional TAffinity Affinity = 4;
         optional uint32 InjectMadSquirrels = 5;
@@ -55,16 +55,16 @@ message TActorSystemConfig {
         optional uint32 TimePerMailboxMicroSecs = 7;
         optional uint32 EventsPerMailbox = 8;
         optional uint32 RealtimePriority = 9;
-
-        // Actorsystem 2.0: cpu sharing by different pools with preemption
-        optional uint32 Concurrency = 10; // Limits simultaneously running mailboxes of UNITED pool
-        optional uint32 Weight = 11; // Weight of UNITED pool in cpu-local scheduler (default value is NActors::DefPoolWeight)
-
-        // Actorsystem 1.5: cpu balancing between pools
-        optional uint32 MinThreads = 12; // Lower balancing bound, should be at least 1, and not greater than `Threads`
-        optional uint32 MaxThreads = 13; // Higher balancing bound, should be not lower than `Threads`
-        optional uint32 BalancingPriority = 14; // Priority of pool to obtain cpu due to balancing (higher is better)
-        optional uint64 ToleratedLatencyUs = 15; // p100-latency threshold indicating that more cpus are required by pool
+ 
+        // Actorsystem 2.0: cpu sharing by different pools with preemption 
+        optional uint32 Concurrency = 10; // Limits simultaneously running mailboxes of UNITED pool 
+        optional uint32 Weight = 11; // Weight of UNITED pool in cpu-local scheduler (default value is NActors::DefPoolWeight) 
+ 
+        // Actorsystem 1.5: cpu balancing between pools 
+        optional uint32 MinThreads = 12; // Lower balancing bound, should be at least 1, and not greater than `Threads` 
+        optional uint32 MaxThreads = 13; // Higher balancing bound, should be not lower than `Threads` 
+        optional uint32 BalancingPriority = 14; // Priority of pool to obtain cpu due to balancing (higher is better) 
+        optional uint64 ToleratedLatencyUs = 15; // p100-latency threshold indicating that more cpus are required by pool 
     }
 
     message TScheduler {
@@ -92,22 +92,22 @@ message TActorSystemConfig {
     optional uint32 TimePerMailboxMicroSecs = 8;
     optional uint32 EventsPerMailbox = 9;
     optional uint32 SelfPingInterval = 10; // in microseconds
-
-    message TUnitedWorkers {
-        optional uint32 CpuCount = 1; // Total CPUs running united workers (TExecutor.Threads analog), should be set to zero to use actorsystem 1.5, and >0 for actorsystem 2.0
-        optional uint64 SpinThresholdUs = 2; // Limit for active spinning in case all pools became idle
-        optional uint64 PoolLimitUs = 3; // Soft limit on pool execution
-        optional uint64 EventLimitUs = 4; // Hard limit on last event execution exceeding pool limit
-        optional uint64 LimitPrecisionUs = 5; // Maximum delay of timer on limit excess (delay needed to avoid settimer syscall on every pool switch)
-        optional uint64 FastWorkerPriority = 6; // Real-time priority of workers not exceeding hard limits
-        optional uint64 IdleWorkerPriority = 7; // Real-time priority of standby workers waiting for hard preemption on timers (should be greater than FastWorkerPriority)
-        optional TAffinity Affinity = 8; // Cpu set for workers (every worker has affinity for exactly one cpu)
-        optional bool NoRealtime = 9; // Do not use RT-priority for worker threads
-        optional bool NoAffinity = 10; // Do not use affinity for worker threads
-        optional uint64 BalancerPeriodUs = 11; // Time between balancer steps (see default in NActors::TBalancerConfig)
-    }
-
-    optional TUnitedWorkers UnitedWorkers = 11;
+ 
+    message TUnitedWorkers { 
+        optional uint32 CpuCount = 1; // Total CPUs running united workers (TExecutor.Threads analog), should be set to zero to use actorsystem 1.5, and >0 for actorsystem 2.0 
+        optional uint64 SpinThresholdUs = 2; // Limit for active spinning in case all pools became idle 
+        optional uint64 PoolLimitUs = 3; // Soft limit on pool execution 
+        optional uint64 EventLimitUs = 4; // Hard limit on last event execution exceeding pool limit 
+        optional uint64 LimitPrecisionUs = 5; // Maximum delay of timer on limit excess (delay needed to avoid settimer syscall on every pool switch) 
+        optional uint64 FastWorkerPriority = 6; // Real-time priority of workers not exceeding hard limits 
+        optional uint64 IdleWorkerPriority = 7; // Real-time priority of standby workers waiting for hard preemption on timers (should be greater than FastWorkerPriority) 
+        optional TAffinity Affinity = 8; // Cpu set for workers (every worker has affinity for exactly one cpu) 
+        optional bool NoRealtime = 9; // Do not use RT-priority for worker threads 
+        optional bool NoAffinity = 10; // Do not use affinity for worker threads 
+        optional uint64 BalancerPeriodUs = 11; // Time between balancer steps (see default in NActors::TBalancerConfig) 
+    } 
+ 
+    optional TUnitedWorkers UnitedWorkers = 11; 
 }
 
 message TStaticNameserviceConfig {
diff --git a/ydb/core/protos/counters.proto b/ydb/core/protos/counters.proto
index 05a8c93d90..5ca9b39198 100644
--- a/ydb/core/protos/counters.proto
+++ b/ydb/core/protos/counters.proto
@@ -1,27 +1,27 @@
 import "google/protobuf/descriptor.proto";
-
-package NKikimr;
-
-option java_package = "ru.yandex.kikimr.proto";
-
-//
-// Custom options to describe counters
-//
-message TRange {
-    optional uint64 Value = 1;
-    optional string Name = 2;
-}
-
-message TCounterOptions {
-    optional string Name = 1;
-    repeated TRange Ranges = 2;
+ 
+package NKikimr; 
+ 
+option java_package = "ru.yandex.kikimr.proto"; 
+ 
+// 
+// Custom options to describe counters 
+// 
+message TRange { 
+    optional uint64 Value = 1; 
+    optional string Name = 2; 
+} 
+ 
+message TCounterOptions { 
+    optional string Name = 1; 
+    repeated TRange Ranges = 2; 
     optional bool Integral = 3;
-}
-
-message TTxTypeOptions {
-    optional string Name = 1;
-}
-
+} 
+ 
+message TTxTypeOptions { 
+    optional string Name = 1; 
+} 
+ 
 message TLabeledCounterOptions {
     enum ECounterType {
         CT_SIMPLE = 1;
@@ -44,49 +44,49 @@ message TLabeledCounterGroupNamesOptions {
     repeated string Names = 1;
 }
 
-extend google.protobuf.EnumValueOptions {
-    optional TCounterOptions CounterOpts = 56672;
-    optional TTxTypeOptions TxTypeOpts = 56673;
+extend google.protobuf.EnumValueOptions { 
+    optional TCounterOptions CounterOpts = 56672; 
+    optional TTxTypeOptions TxTypeOpts = 56673; 
     optional TLabeledCounterOptions LabeledCounterOpts = 56676;
-}
-
-extend google.protobuf.EnumOptions {
-    optional TCounterOptions GlobalCounterOpts = 56674;
+} 
+ 
+extend google.protobuf.EnumOptions { 
+    optional TCounterOptions GlobalCounterOpts = 56674; 
     optional TLabeledCounterGroupNamesOptions GlobalGroupNamesOpts = 56677;
-}
-
-extend google.protobuf.FileOptions {
-    optional string TabletTypeName = 56675;
-}
-
-//
-// Counters common for every transaction type
-//
-enum ETxTypeSimpleCounters {
+} 
+ 
+extend google.protobuf.FileOptions { 
+    optional string TabletTypeName = 56675; 
+} 
+ 
+// 
+// Counters common for every transaction type 
+// 
+enum ETxTypeSimpleCounters { 
     COUNTER_TT_SIMPLE_IGNORE = 0;
-}
-
-enum ETxTypeCumulativeCounters {
+} 
+ 
+enum ETxTypeCumulativeCounters { 
     COUNTER_TT_CULUMATIVE_IGNORE = 0;
 
     COUNTER_TT_POSTPONED = 1                             [(CounterOpts) = {Name: "Postponed"}]; // Total restarts
-    COUNTER_TT_RO_COMPLETED = 2                          [(CounterOpts) = {Name: "RoCompleted"}];
-    COUNTER_TT_RW_COMPLETED = 3                          [(CounterOpts) = {Name: "RwCompleted"}];
-    COUNTER_TT_WRITES = 4                                [(CounterOpts) = {Name: "Writes"}];
-    COUNTER_TT_BYTES_WRITTEN = 5                         [(CounterOpts) = {Name: "WrittenBytes"}];
-    COUNTER_TT_BYTES_READ = 6                            [(CounterOpts) = {Name: "ReadBytes"}];
-    COUNTER_TT_EXECUTE_CPUTIME = 7                       [(CounterOpts) = {Name: "ExecuteCPUTime"}];
-    COUNTER_TT_BOOKKEEPING_CPUTIME = 8                   [(CounterOpts) = {Name: "BookkeepingCPUTime"}];
-    COUNTER_TT_COMMITED_CPUTIME = 9                      [(CounterOpts) = {Name: "CommitedCPUTime"}];
-    COUNTER_TT_TOUCHED_BLOCKS = 10                       [(CounterOpts) = {Name: "TouchedBlocks"}];
+    COUNTER_TT_RO_COMPLETED = 2                          [(CounterOpts) = {Name: "RoCompleted"}]; 
+    COUNTER_TT_RW_COMPLETED = 3                          [(CounterOpts) = {Name: "RwCompleted"}]; 
+    COUNTER_TT_WRITES = 4                                [(CounterOpts) = {Name: "Writes"}]; 
+    COUNTER_TT_BYTES_WRITTEN = 5                         [(CounterOpts) = {Name: "WrittenBytes"}]; 
+    COUNTER_TT_BYTES_READ = 6                            [(CounterOpts) = {Name: "ReadBytes"}]; 
+    COUNTER_TT_EXECUTE_CPUTIME = 7                       [(CounterOpts) = {Name: "ExecuteCPUTime"}]; 
+    COUNTER_TT_BOOKKEEPING_CPUTIME = 8                   [(CounterOpts) = {Name: "BookkeepingCPUTime"}]; 
+    COUNTER_TT_COMMITED_CPUTIME = 9                      [(CounterOpts) = {Name: "CommitedCPUTime"}]; 
+    COUNTER_TT_TOUCHED_BLOCKS = 10                       [(CounterOpts) = {Name: "TouchedBlocks"}]; 
     COUNTER_TT_LOADED_BLOCKS = 11                        [(CounterOpts) = {Name: "LoadedBlocks"}];
     COUNTER_TT_TERMINATED = 12                           [(CounterOpts) = {Name: "Terminated"}];
     COUNTER_TT_REDO_WRITTEN_BYTES = 13                   [(CounterOpts) = {Name: "RedoWrittenBytes"}];
     COUNTER_TT_ANNEX_WRITTEN_BYTES = 14                  [(CounterOpts) = {Name: "AnnexWrittenBytes"}];
-}
-
-enum ETxTypePercentileCounters {
-    option (GlobalCounterOpts) = {
+} 
+ 
+enum ETxTypePercentileCounters { 
+    option (GlobalCounterOpts) = { 
         Ranges { Value: 0           Name: "(1) < 500 us"        }
         Ranges { Value: 500         Name: "(2) 0.5-1 ms"        }
         Ranges { Value: 1000        Name: "(3) 1-2 ms"          }
@@ -105,7 +105,7 @@ enum ETxTypePercentileCounters {
         Ranges { Value: 8000000     Name: "(16) 8-16 s"         }
         Ranges { Value: 16000000    Name: "(17) 16-32 s"        }
         Ranges { Value: 32000000    Name: "(18) 32 < s"         }
-    };
+    }; 
 
     COUNTER_TT_PERCENTILE_IGNORE = 0;
-}
+} 
diff --git a/ydb/core/protos/counters_coordinator.proto b/ydb/core/protos/counters_coordinator.proto
index 0357a80220..aee12b2d7c 100644
--- a/ydb/core/protos/counters_coordinator.proto
+++ b/ydb/core/protos/counters_coordinator.proto
@@ -1,33 +1,33 @@
 import "ydb/core/protos/counters.proto";
-
-package NKikimr.NFlatTxCoordinator;
-
-option java_package = "ru.yandex.kikimr.proto";
-
-option (TabletTypeName) = "Coordinator"; // Used as prefix for all counters
-
-// Real coordinator counters are dynamic. Probably we should fix this?
-enum ESimpleCounters {
+ 
+package NKikimr.NFlatTxCoordinator; 
+ 
+option java_package = "ru.yandex.kikimr.proto"; 
+ 
+option (TabletTypeName) = "Coordinator"; // Used as prefix for all counters 
+ 
+// Real coordinator counters are dynamic. Probably we should fix this? 
+enum ESimpleCounters { 
     COUNTER_SIMPLE_IGNORE = 0;
-}
-
-enum ECumulativeCounters {
+} 
+ 
+enum ECumulativeCounters { 
     COUNTER_CUMULATIVE_IGNORE = 0;
-}
-
-enum EPercentileCounters {
-    option (GlobalCounterOpts) = {
-        Ranges { Value: 0      Name: "0 ms"      }
-        Ranges { Value: 1      Name: "1 ms"      }
-    };
-
+} 
+ 
+enum EPercentileCounters { 
+    option (GlobalCounterOpts) = { 
+        Ranges { Value: 0      Name: "0 ms"      } 
+        Ranges { Value: 1      Name: "1 ms"      } 
+    }; 
+ 
     COUNTER_PERCENTILE_IGNORE = 0;
-}
-
-enum ETxTypes {
-    TXTYPE_INIT = 0                                       [(TxTypeOpts) = {Name: "TxInit"}];
-    TXTYPE_STEP = 1                                       [(TxTypeOpts) = {Name: "TxStep"}];
-    TXTYPE_MEDIATOR_CONFIRMATIONS = 2                     [(TxTypeOpts) = {Name: "TxMediatorConfirmations"}];
-    TXTYPE_RESTART_MEDIATOR = 3                           [(TxTypeOpts) = {Name: "TxRestartMediator"}];
+} 
+ 
+enum ETxTypes { 
+    TXTYPE_INIT = 0                                       [(TxTypeOpts) = {Name: "TxInit"}]; 
+    TXTYPE_STEP = 1                                       [(TxTypeOpts) = {Name: "TxStep"}]; 
+    TXTYPE_MEDIATOR_CONFIRMATIONS = 2                     [(TxTypeOpts) = {Name: "TxMediatorConfirmations"}]; 
+    TXTYPE_RESTART_MEDIATOR = 3                           [(TxTypeOpts) = {Name: "TxRestartMediator"}]; 
     TXTYPE_ACQUIRE_READ_STEP = 4                          [(TxTypeOpts) = {Name: "TxAcquireReadStep"}];
-}
+} 
diff --git a/ydb/core/protos/counters_datashard.proto b/ydb/core/protos/counters_datashard.proto
index 956a136937..79d9957303 100644
--- a/ydb/core/protos/counters_datashard.proto
+++ b/ydb/core/protos/counters_datashard.proto
@@ -1,12 +1,12 @@
 import "ydb/core/protos/counters.proto";
-
+ 
 package NKikimr.NDataShard;
-
-option java_package = "ru.yandex.kikimr.proto";
-
-option (TabletTypeName) = "DataShard"; // Used as prefix for all counters
-
-enum ESimpleCounters {
+ 
+option java_package = "ru.yandex.kikimr.proto"; 
+ 
+option (TabletTypeName) = "DataShard"; // Used as prefix for all counters 
+ 
+enum ESimpleCounters { 
     COUNTER_TX_IN_FLY = 0                                          [(CounterOpts) = {Name: "TxInFly"}];
     COUNTER_STATE_WORK = 1                                         [(CounterOpts) = {Name: "StateWork"}];
     COUNTER_TX_COMPLETE_LAG = 2                                    [(CounterOpts) = {Name: "TxCompleteLag"}];
@@ -20,32 +20,32 @@ enum ESimpleCounters {
     COUNTER_MVCC_STATE_CHANGE_WAIT_TX_IN_FLY = 10                  [(CounterOpts) = {Name: "MvccStateChangeWaitTxInFly"}];
     COUNTER_MVCC_STATE_CHANGE_WAIT_IMMEDIATE_TX_IN_FLY = 11        [(CounterOpts) = {Name: "MvccStateChangeWaitImmediateTxInFly"}];
     COUNTER_MVCC_ENABLED = 12                                      [(CounterOpts) = {Name: "MvccEnabled"}];
-}
-
-enum ECumulativeCounters {
-    COUNTER_REQ_RO = 0                                    [(CounterOpts) = {Name: "ReqRo"}];
-    COUNTER_PREPARE_REQUEST = 1                           [(CounterOpts) = {Name: "PrepareRequests"}];
-    COUNTER_PREPARE_ERROR =  2                            [(CounterOpts) = {Name: "PrepareErrors"}];
-    COUNTER_PREPARE_IMMEDIATE = 3                         [(CounterOpts) = {Name: "PrepareImmediate"}];
-    COUNTER_PREPARE_SUCCESS = 4                           [(CounterOpts) = {Name: "PrepareSuccess"}];
-    COUNTER_PREPARE_COMPLETE = 5                          [(CounterOpts) = {Name: "PrepareComplete"}];
-    COUNTER_PREPARE_DIRTY = 6                             [(CounterOpts) = {Name: "PrepareDirty"}];
-    COUNTER_PREPARE_OVERLOADED = 7                        [(CounterOpts) = {Name: "PrepareOverloaded"}];
-    COUNTER_PLAN_STEP_IGNORED = 8                         [(CounterOpts) = {Name: "PlanStepIgnored"}];
-    COUNTER_PLAN_STEP_ACCEPTED = 9                        [(CounterOpts) = {Name: "PlanStepAccepted"}];
-    COUNTER_TX_PROGRESS_SHARD_INACTIVE = 10               [(CounterOpts) = {Name: "TxProgressShardInactive"}];
-    COUNTER_TX_PROGRESS_QUEUE_EMPTY = 11                  [(CounterOpts) = {Name: "TxProgressQueueEmpty"}];
+} 
+ 
+enum ECumulativeCounters { 
+    COUNTER_REQ_RO = 0                                    [(CounterOpts) = {Name: "ReqRo"}]; 
+    COUNTER_PREPARE_REQUEST = 1                           [(CounterOpts) = {Name: "PrepareRequests"}]; 
+    COUNTER_PREPARE_ERROR =  2                            [(CounterOpts) = {Name: "PrepareErrors"}]; 
+    COUNTER_PREPARE_IMMEDIATE = 3                         [(CounterOpts) = {Name: "PrepareImmediate"}]; 
+    COUNTER_PREPARE_SUCCESS = 4                           [(CounterOpts) = {Name: "PrepareSuccess"}]; 
+    COUNTER_PREPARE_COMPLETE = 5                          [(CounterOpts) = {Name: "PrepareComplete"}]; 
+    COUNTER_PREPARE_DIRTY = 6                             [(CounterOpts) = {Name: "PrepareDirty"}]; 
+    COUNTER_PREPARE_OVERLOADED = 7                        [(CounterOpts) = {Name: "PrepareOverloaded"}]; 
+    COUNTER_PLAN_STEP_IGNORED = 8                         [(CounterOpts) = {Name: "PlanStepIgnored"}]; 
+    COUNTER_PLAN_STEP_ACCEPTED = 9                        [(CounterOpts) = {Name: "PlanStepAccepted"}]; 
+    COUNTER_TX_PROGRESS_SHARD_INACTIVE = 10               [(CounterOpts) = {Name: "TxProgressShardInactive"}]; 
+    COUNTER_TX_PROGRESS_QUEUE_EMPTY = 11                  [(CounterOpts) = {Name: "TxProgressQueueEmpty"}]; 
     COUNTER_TX_PROGRESS_CLEANUP = 12                      [(CounterOpts) = {Name: "TxProgressCleanup"}];
-    COUNTER_TX_PROGRESS_OUTDATED = 13                     [(CounterOpts) = {Name: "TxProgressOutdated"}];
-    COUNTER_TX_PROGRESS_DUPLICATE = 14                    [(CounterOpts) = {Name: "TxProgressDuplicate"}];
-    COUNTER_TX_PROGRESS_DIRTY = 15                        [(CounterOpts) = {Name: "TxProgressDirty"}];
-    COUNTER_TX_PROGRESS_EV = 16                           [(CounterOpts) = {Name: "TxProgressEvents"}];
+    COUNTER_TX_PROGRESS_OUTDATED = 13                     [(CounterOpts) = {Name: "TxProgressOutdated"}]; 
+    COUNTER_TX_PROGRESS_DUPLICATE = 14                    [(CounterOpts) = {Name: "TxProgressDuplicate"}]; 
+    COUNTER_TX_PROGRESS_DIRTY = 15                        [(CounterOpts) = {Name: "TxProgressDirty"}]; 
+    COUNTER_TX_PROGRESS_EV = 16                           [(CounterOpts) = {Name: "TxProgressEvents"}]; 
     COUNTER_TX_CLEANUP_SCHEDULED = 17                     [(CounterOpts) = {Name: "TxCleanupScheduled"}];
     COUNTER_TX_PROGRESS_IDLE = 18                         [(CounterOpts) = {Name: "TxProgressIdle"}];
-    COUNTER_ACK_SENT = 19                                 [(CounterOpts) = {Name: "AckSent"}];
-    COUNTER_ACK_SENT_DELAYED = 20                         [(CounterOpts) = {Name: "AckSentDelayed"}];
-    COUNTER_CANCEL_TX_NOTFOUND = 21                       [(CounterOpts) = {Name: "CancelTxNotFound"}];
-    COUNTER_MINIKQL_PROGRAM_SIZE = 22                     [(CounterOpts) = {Name: "MiniKQLProgramSize"}];
+    COUNTER_ACK_SENT = 19                                 [(CounterOpts) = {Name: "AckSent"}]; 
+    COUNTER_ACK_SENT_DELAYED = 20                         [(CounterOpts) = {Name: "AckSentDelayed"}]; 
+    COUNTER_CANCEL_TX_NOTFOUND = 21                       [(CounterOpts) = {Name: "CancelTxNotFound"}]; 
+    COUNTER_MINIKQL_PROGRAM_SIZE = 22                     [(CounterOpts) = {Name: "MiniKQLProgramSize"}]; 
     COUNTER_ENGINE_HOST_SELECT_ROW = 23                   [(CounterOpts) = {Name: "EngineHostRowReads"}];
     COUNTER_ENGINE_HOST_SELECT_RANGE = 24                 [(CounterOpts) = {Name: "EngineHostRangeReads"}];
     COUNTER_ENGINE_HOST_UPDATE_ROW = 25                   [(CounterOpts) = {Name: "EngineHostRowUpdates"}];
@@ -108,10 +108,10 @@ enum ECumulativeCounters {
     COUNTER_TX_BACKGROUND_COMPACTION_NOT_NEEDED = 82      [(CounterOpts) = {Name: "TxCompactTableNotNeeded"}];
     COUNTER_TX_BACKGROUND_COMPACTION_FAILED_BORROWED = 83 [(CounterOpts) = {Name: "TxCompactTableFailedBorrowed"}];
     COUNTER_TX_BACKGROUND_COMPACTION_FAILED_START = 84    [(CounterOpts) = {Name: "TxCompactTableFailedStart"}];
-}
-
-enum EPercentileCounters {
-    option (GlobalCounterOpts) = {
+} 
+ 
+enum EPercentileCounters { 
+    option (GlobalCounterOpts) = { 
         Ranges { Value: 0           Name: "(1) < 500 us"        }
         Ranges { Value: 500         Name: "(2) 0.5-1 ms"        }
         Ranges { Value: 1000        Name: "(3) 1-2 ms"          }
@@ -130,14 +130,14 @@ enum EPercentileCounters {
         Ranges { Value: 8000000     Name: "(16) 8-16 s"         }
         Ranges { Value: 16000000    Name: "(17) 16-32 s"        }
         Ranges { Value: 32000000    Name: "(18) 32 < s"         }
-    };
-
-    COUNTER_PREPARE_SUCCESS_COMPLETE_LATENCY = 0          [(CounterOpts) = {Name: "PrepareSuccessCompleteLatency"}];
-    COUNTER_ACCEPTED_PLAN_STEP_COMPLETE_LATENCY = 1       [(CounterOpts) = {Name: "AcceptedPlanStepCompleteLatency"}];
-    COUNTER_TX_PROGRESS_COMPLETE_LATENCY = 2              [(CounterOpts) = {Name: "TxProgressCompleteLatency"}];
-    COUNTER_PLAN_TO_EXECUTE_LATENCY = 3                   [(CounterOpts) = {Name: "PlanToExecuteLatency"}];
-    COUNTER_PREPARE_EXEC_LATENCY = 4                      [(CounterOpts) = {Name: "PrepareExecLatency"}];
-    COUNTER_TX_PROGRESS_EXEC_LATENCY = 5                  [(CounterOpts) = {Name: "TxProgressExecLatency"}];
+    }; 
+ 
+    COUNTER_PREPARE_SUCCESS_COMPLETE_LATENCY = 0          [(CounterOpts) = {Name: "PrepareSuccessCompleteLatency"}]; 
+    COUNTER_ACCEPTED_PLAN_STEP_COMPLETE_LATENCY = 1       [(CounterOpts) = {Name: "AcceptedPlanStepCompleteLatency"}]; 
+    COUNTER_TX_PROGRESS_COMPLETE_LATENCY = 2              [(CounterOpts) = {Name: "TxProgressCompleteLatency"}]; 
+    COUNTER_PLAN_TO_EXECUTE_LATENCY = 3                   [(CounterOpts) = {Name: "PlanToExecuteLatency"}]; 
+    COUNTER_PREPARE_EXEC_LATENCY = 4                      [(CounterOpts) = {Name: "PrepareExecLatency"}]; 
+    COUNTER_TX_PROGRESS_EXEC_LATENCY = 5                  [(CounterOpts) = {Name: "TxProgressExecLatency"}]; 
 
     COUNTER_LOCKS_ACTIVE_PER_SHARD = 6                    [(CounterOpts) = {Name: "LocksActivePerShard",
                                                               Ranges: { Value: 0     Name: "0"},
@@ -343,17 +343,17 @@ enum EPercentileCounters {
                                                               Ranges: { Value: 72       Name: "72"},
                                                               Ranges: { Value: 168      Name: "inf"},
                                                           }];
-}
-
-enum ETxTypes {
-    TXTYPE_INIT = 0                                       [(TxTypeOpts) = {Name: "TxInit"}];
-    TXTYPE_READSET = 1                                    [(TxTypeOpts) = {Name: "TxReadSet"}];
-    TXTYPE_PLAN_STEP = 2                                  [(TxTypeOpts) = {Name: "TxPlanStep"}];
-    TXTYPE_PROPOSE_DATA = 3                               [(TxTypeOpts) = {Name: "TxProposeData"}];
-    TXTYPE_PROPOSE_SCHEME = 4                             [(TxTypeOpts) = {Name: "TxProposeScheme"}];
-    TXTYPE_PROGRESS_START = 5                             [(TxTypeOpts) = {Name: "TxProgressStart"}];
-    TXTYPE_PROGRESS_WAIT = 6                              [(TxTypeOpts) = {Name: "TxProgressWait"}];
-    TXTYPE_PROGRESS_COMPLETE = 7                          [(TxTypeOpts) = {Name: "TxProgressComplete"}];
+} 
+ 
+enum ETxTypes { 
+    TXTYPE_INIT = 0                                       [(TxTypeOpts) = {Name: "TxInit"}]; 
+    TXTYPE_READSET = 1                                    [(TxTypeOpts) = {Name: "TxReadSet"}]; 
+    TXTYPE_PLAN_STEP = 2                                  [(TxTypeOpts) = {Name: "TxPlanStep"}]; 
+    TXTYPE_PROPOSE_DATA = 3                               [(TxTypeOpts) = {Name: "TxProposeData"}]; 
+    TXTYPE_PROPOSE_SCHEME = 4                             [(TxTypeOpts) = {Name: "TxProposeScheme"}]; 
+    TXTYPE_PROGRESS_START = 5                             [(TxTypeOpts) = {Name: "TxProgressStart"}]; 
+    TXTYPE_PROGRESS_WAIT = 6                              [(TxTypeOpts) = {Name: "TxProgressWait"}]; 
+    TXTYPE_PROGRESS_COMPLETE = 7                          [(TxTypeOpts) = {Name: "TxProgressComplete"}]; 
     TXTYPE_GET_STARD_STATE = 8                            [(TxTypeOpts) = {Name: "TxGetShardState"}];
     TXTYPE_PROGRESS_RESEND_RS = 9                         [(TxTypeOpts) = {Name: "TxProgressResendRS"}];
     TXTYPE_CANCEL_TX_PROPOSAL = 10                        [(TxTypeOpts) = {Name: "TxCancelTxProposal"}];
@@ -417,4 +417,4 @@ enum ETxTypes {
     TXTYPE_APPLY_REPLICATION_CHANGES = 68                 [(TxTypeOpts) = {Name: "TxApplyReplicationChanges"}];
     TXTYPE_READ = 69                                      [(TxTypeOpts) = {Name: "TxRead"}];
     TXTYPE_SPLIT_REPLICATION_SOURCE_OFFSETS = 70          [(TxTypeOpts) = {Name: "TxSplitReplicationSourceOffsets"}];
-}
+} 
diff --git a/ydb/core/protos/counters_hive.proto b/ydb/core/protos/counters_hive.proto
index 952f4e99e3..ee9fd4d501 100644
--- a/ydb/core/protos/counters_hive.proto
+++ b/ydb/core/protos/counters_hive.proto
@@ -1,12 +1,12 @@
 import "ydb/core/protos/counters.proto";
-
-package NKikimr.NHive;
-
-option java_package = "ru.yandex.kikimr.proto";
-
-option (TabletTypeName) = "Hive"; // Used as prefix for all counters
-
-enum ESimpleCounters {
+ 
+package NKikimr.NHive; 
+ 
+option java_package = "ru.yandex.kikimr.proto"; 
+ 
+option (TabletTypeName) = "Hive"; // Used as prefix for all counters 
+ 
+enum ESimpleCounters { 
     COUNTER_TABLETS_TOTAL = 0   [(CounterOpts) = {Name: "TabletsTotal"}];
     COUNTER_TABLETS_ALIVE = 1   [(CounterOpts) = {Name: "TabletsAlive"}];
     COUNTER_BOOTQUEUE_SIZE = 2   [(CounterOpts) = {Name: "BootQueueSize"}];
@@ -20,9 +20,9 @@ enum ESimpleCounters {
     COUNTER_WAITQUEUE_SIZE = 10 [(CounterOpts) = {Name: "WaitQueueSize"}];
     COUNTER_BALANCE_USAGE_MIN = 11 [(CounterOpts) = {Name: "BalanceUsageMin"}];
     COUNTER_BALANCE_USAGE_MAX = 12 [(CounterOpts) = {Name: "BalanceUsageMax"}];
-}
-
-enum ECumulativeCounters {
+} 
+ 
+enum ECumulativeCounters { 
     COUNTER_BOOTQUEUE_PROCESSED = 0 [(CounterOpts) = {Name: "BootQueueProcessed"}];
     COUNTER_BOOTQUEUE_TIME = 1 [(CounterOpts) = {Name: "BootQueueTime"}];
     COUNTER_AUTOKICK_EXECUTED = 2 [(CounterOpts) = {Name: "AutokickExecuted"}]; // obsolete
@@ -35,25 +35,25 @@ enum ECumulativeCounters {
     COUNTER_TABLETS_MOVED = 9 [(CounterOpts) = {Name: "TabletsMoved"}];
     COUNTER_SUGGESTED_SCALE_UP = 10 [(CounterOpts) = {Name: "SuggestedScaleUp"}];
     COUNTER_SUGGESTED_SCALE_DOWN = 11 [(CounterOpts) = {Name: "SuggestedScaleDown"}];
-}
-
-enum EPercentileCounters {
-    option (GlobalCounterOpts) = {
-        Ranges { Value: 0      Name: "0 ms"      }
-        Ranges { Value: 1      Name: "1 ms"      }
-    };
-
+} 
+ 
+enum EPercentileCounters { 
+    option (GlobalCounterOpts) = { 
+        Ranges { Value: 0      Name: "0 ms"      } 
+        Ranges { Value: 1      Name: "1 ms"      } 
+    }; 
+ 
     COUNTER_PERCENTILE_IGNORE = 0;
-}
-
-enum ETxTypes {
-    TXTYPE_CREATE_TABLET = 0                              [(TxTypeOpts) = {Name: "TxCreateTablet"}];
-    TXTYPE_SYNC_TABLETS = 1                               [(TxTypeOpts) = {Name: "TxSyncTablets"}];
-    TXTYPE_KILL_TABLET = 2                                [(TxTypeOpts) = {Name: "TxKillTablet"}];
-    TXTYPE_UPDATE_TABLET_GROUP = 3                        [(TxTypeOpts) = {Name: "TxUpdateTabletGroup"}];
-    TXTYPE_UPDATE_TABLET_STATUS = 4                       [(TxTypeOpts) = {Name: "TxUpdateTabletStatus"}];
-    TXTYPE_REGISTER_NODE = 5                              [(TxTypeOpts) = {Name: "TxRegisterNode"}];
-    TXTYPE_KILL_NODE = 6                                  [(TxTypeOpts) = {Name: "TxKillNode"}];
+} 
+ 
+enum ETxTypes { 
+    TXTYPE_CREATE_TABLET = 0                              [(TxTypeOpts) = {Name: "TxCreateTablet"}]; 
+    TXTYPE_SYNC_TABLETS = 1                               [(TxTypeOpts) = {Name: "TxSyncTablets"}]; 
+    TXTYPE_KILL_TABLET = 2                                [(TxTypeOpts) = {Name: "TxKillTablet"}]; 
+    TXTYPE_UPDATE_TABLET_GROUP = 3                        [(TxTypeOpts) = {Name: "TxUpdateTabletGroup"}]; 
+    TXTYPE_UPDATE_TABLET_STATUS = 4                       [(TxTypeOpts) = {Name: "TxUpdateTabletStatus"}]; 
+    TXTYPE_REGISTER_NODE = 5                              [(TxTypeOpts) = {Name: "TxRegisterNode"}]; 
+    TXTYPE_KILL_NODE = 6                                  [(TxTypeOpts) = {Name: "TxKillNode"}]; 
     TXTYPE_ADOPT_TABLET = 7                               [(TxTypeOpts) = {Name: "TxAdoptTablet"}];
     TXTYPE_UPDATE_TABLET_METRIC = 8                       [(TxTypeOpts) = {Name: "TxUpdateTabletMetric"}];
     TXTYPE_UPDATE_TABLET_GROUPS = 9                       [(TxTypeOpts) = {Name: "TxUpdateTabletGroups"}];
@@ -104,4 +104,4 @@ enum ETxTypes {
     TXTYPE_STOP_TABLET = 54                               [(TxTypeOpts) = {Name: "TxStopTablet"}];
     TXTYPE_RESUME_TABLET = 55                             [(TxTypeOpts) = {Name: "TxResumeTablet"}];
     TXTYPE_RESTART_TABLET = 56                            [(TxTypeOpts) = {Name: "TxRestartTablet"}];
-}
+} 
diff --git a/ydb/core/protos/counters_keyvalue.proto b/ydb/core/protos/counters_keyvalue.proto
index 973df1d569..3e7655a072 100644
--- a/ydb/core/protos/counters_keyvalue.proto
+++ b/ydb/core/protos/counters_keyvalue.proto
@@ -1,78 +1,78 @@
 import "ydb/core/protos/counters.proto";
-
-package NKikimr.NKeyValue;
-
-option java_package = "ru.yandex.kikimr.proto";
-
-option (TabletTypeName) = "KV"; // Used as prefix for all counters
-
-enum ECumulativeCounters {
-    COUNTER_REQ_RO = 0                                               [(CounterOpts) = {Name: "ReqRo"}];
-    COUNTER_REQ_RO_OK = 1                                            [(CounterOpts) = {Name: "ReqRoOk"}];
-    COUNTER_REQ_RO_TIMEOUT = 2                                       [(CounterOpts) = {Name: "ReqRoTimeout"}];
-    COUNTER_REQ_RO_OTHER_ERROR = 3                                   [(CounterOpts) = {Name: "ReqRoOtherError"}];
-
-    COUNTER_REQ_WO = 4                                               [(CounterOpts) = {Name: "ReqWo"}];
-    COUNTER_REQ_WO_OK = 5                                            [(CounterOpts) = {Name: "ReqWoOk"}];
-    COUNTER_REQ_WO_TIMEOUT = 6                                       [(CounterOpts) = {Name: "ReqWoTimeout"}];
-    COUNTER_REQ_WO_OTHER_ERROR = 7                                   [(CounterOpts) = {Name: "ReqWoOtherError"}];
-
-    COUNTER_REQ_RW = 8                                               [(CounterOpts) = {Name: "ReqRw"}];
-    COUNTER_REQ_RW_OK = 9                                            [(CounterOpts) = {Name: "ReqRwOk"}];
-    COUNTER_REQ_RW_TIMEOUT = 10                                      [(CounterOpts) = {Name: "ReqRwTimeout"}];
-    COUNTER_REQ_RW_OTHER_ERROR = 11                                  [(CounterOpts) = {Name: "ReqRwOtherError"}];
-
-    COUNTER_REQ_OVERRUN = 12                                         [(CounterOpts) = {Name: "ReqOverrun"}];
-
-    COUNTER_CMD_READ_BYTES_OK = 13                                   [(CounterOpts) = {Name: "CmdReadBytesOk"}];
-    COUNTER_CMD_READ_BYTES_TIMEOUT = 14                              [(CounterOpts) = {Name: "CmdReadBytesTimeout"}];
-    COUNTER_CMD_READ_BYTES_OTHER_ERROR = 15                          [(CounterOpts) = {Name: "CmdReadBytesOtherError"}];
-
-    COUNTER_CMD_READ_OK = 16                                         [(CounterOpts) = {Name: "CmdReadOk"}];
-    COUNTER_CMD_READ_TIMEOUT = 17                                    [(CounterOpts) = {Name: "CmdReadTimeout"}];
-    COUNTER_CMD_READ_OTHER_ERROR = 18                                [(CounterOpts) = {Name: "CmdReadOtherError"}];
-    COUNTER_CMD_READ_NODATA = 19                                     [(CounterOpts) = {Name: "CmdReadNodata"}];
-
-    COUNTER_CMD_DATA_RANGE_READ_BYTES_OK = 20                        [(CounterOpts) = {Name: "CmdDataRangeReadBytesOk"}];
-    COUNTER_CMD_DATA_RANGE_READ_BYTES_TIMEOUT = 21                   [(CounterOpts) = {Name: "CmdDataRangeReadBytesTimeout"}];
-    COUNTER_CMD_DATA_RANGE_READ_BYTES_OTHER_ERROR = 22               [(CounterOpts) = {Name: "CmdDataRangeReadBytesOtherError"}];
-
-    COUNTER_CMD_INDEX_RANGE_READ_OK = 23                             [(CounterOpts) = {Name: "CmdIndexRangeReadOk"}];
-    COUNTER_CMD_INDEX_RANGE_READ_TIMEOUT = 24                        [(CounterOpts) = {Name: "CmdIndexRangeReadTimeout"}];
-    COUNTER_CMD_INDEX_RANGE_READ_OTHER_ERROR = 25                    [(CounterOpts) = {Name: "CmdIndexRangeReadOtherError"}];
-
-    COUNTER_CMD_DATA_RANGE_READ_ITEMS_OK = 26                        [(CounterOpts) = {Name: "CmdDataRangeReadItemsOk"}];
-    COUNTER_CMD_DATA_RANGE_READ_ITEMS_TIMEOUT = 27                   [(CounterOpts) = {Name: "CmdDataRangeReadItemsTimeout"}];
-    COUNTER_CMD_DATA_RANGE_READ_ITEMS_OTHER_ERROR = 28               [(CounterOpts) = {Name: "CmdDataRangeReadItemsOtherError"}];
-    COUNTER_CMD_DATA_RANGE_READ_ITEMS_NODATA = 29                    [(CounterOpts) = {Name: "CmdDataRangeReadItemsNodata"}];
-
-    COUNTER_CMD_DELETE_OK = 30                                       [(CounterOpts) = {Name: "CmdDeleteOk"}];
-    COUNTER_CMD_DELETE_TIMEOUT = 31                                  [(CounterOpts) = {Name: "CmdDeleteTimeout"}];
-    COUNTER_CMD_DELETE_OTHER_ERROR = 32                              [(CounterOpts) = {Name: "CmdDeleteOtherError"}];
-
-    COUNTER_CMD_DELETE_BYTES_OK = 33                                 [(CounterOpts) = {Name: "CmdDeleteBytesOk"}];
-    COUNTER_CMD_DELETE_BYTES_TIMEOUT = 34                            [(CounterOpts) = {Name: "CmdDeleteBytesTimeout"}];
-    COUNTER_CMD_DELETE_BYTES_OTHER_ERROR = 35                        [(CounterOpts) = {Name: "CmdDeleteBytesOtherError"}];
-
-    COUNTER_CMD_RENAME_OK = 36                                       [(CounterOpts) = {Name: "CmdRenameOk"}];
-    COUNTER_CMD_RENAME_TIMEOUT = 37                                  [(CounterOpts) = {Name: "CmdRenameTimeout"}];
-    COUNTER_CMD_RENAME_OTHER_ERROR = 38                              [(CounterOpts) = {Name: "CmdRenameOtherError"}];
-
-    COUNTER_CMD_WRITE_BYTES_OK = 39                                  [(CounterOpts) = {Name: "CmdWriteBytesOk"}];
-    COUNTER_CMD_WRITE_BYTES_TIMEOUT = 40                             [(CounterOpts) = {Name: "CmdWriteBytesTimeout"}];
-    COUNTER_CMD_WRITE_BYTES_OTHER_ERROR = 41                         [(CounterOpts) = {Name: "CmdWriteBytesOtherError"}];
-
-    COUNTER_CMD_WRITE_OK = 42                                        [(CounterOpts) = {Name: "CmdWriteOk"}];
-    COUNTER_CMD_WRITE_TIMEOUT = 43                                   [(CounterOpts) = {Name: "CmdWriteTimeout"}];
-    COUNTER_CMD_WRITE_OTHER_ERROR = 44                               [(CounterOpts) = {Name: "CmdWriteOtherError"}];
-
-    COUNTER_CMD_COPY_RANGE_OK = 45                                   [(CounterOpts) = {Name: "CmdCopyRangeOk"}];
-    COUNTER_CMD_COPY_RANGE_TIMEOUT = 46                              [(CounterOpts) = {Name: "CmdCopyRangeTimeout"}];
-    COUNTER_CMD_COPY_RANGE_OTHER_ERROR = 47                          [(CounterOpts) = {Name: "CmdCopyRangeOtherError"}];
-
-    COUNTER_CMD_GUM_OK = 48                                          [(CounterOpts) = {Name: "ConcatOk"}];
-    COUNTER_CMD_GUM_TIMEOUT = 49                                     [(CounterOpts) = {Name: "ConcatTimeout"}];
-    COUNTER_CMD_GUM_OTHER_ERROR = 50                                 [(CounterOpts) = {Name: "ConcatOtherError"}];
+ 
+package NKikimr.NKeyValue; 
+ 
+option java_package = "ru.yandex.kikimr.proto"; 
+ 
+option (TabletTypeName) = "KV"; // Used as prefix for all counters 
+ 
+enum ECumulativeCounters { 
+    COUNTER_REQ_RO = 0                                               [(CounterOpts) = {Name: "ReqRo"}]; 
+    COUNTER_REQ_RO_OK = 1                                            [(CounterOpts) = {Name: "ReqRoOk"}]; 
+    COUNTER_REQ_RO_TIMEOUT = 2                                       [(CounterOpts) = {Name: "ReqRoTimeout"}]; 
+    COUNTER_REQ_RO_OTHER_ERROR = 3                                   [(CounterOpts) = {Name: "ReqRoOtherError"}]; 
+ 
+    COUNTER_REQ_WO = 4                                               [(CounterOpts) = {Name: "ReqWo"}]; 
+    COUNTER_REQ_WO_OK = 5                                            [(CounterOpts) = {Name: "ReqWoOk"}]; 
+    COUNTER_REQ_WO_TIMEOUT = 6                                       [(CounterOpts) = {Name: "ReqWoTimeout"}]; 
+    COUNTER_REQ_WO_OTHER_ERROR = 7                                   [(CounterOpts) = {Name: "ReqWoOtherError"}]; 
+ 
+    COUNTER_REQ_RW = 8                                               [(CounterOpts) = {Name: "ReqRw"}]; 
+    COUNTER_REQ_RW_OK = 9                                            [(CounterOpts) = {Name: "ReqRwOk"}]; 
+    COUNTER_REQ_RW_TIMEOUT = 10                                      [(CounterOpts) = {Name: "ReqRwTimeout"}]; 
+    COUNTER_REQ_RW_OTHER_ERROR = 11                                  [(CounterOpts) = {Name: "ReqRwOtherError"}]; 
+ 
+    COUNTER_REQ_OVERRUN = 12                                         [(CounterOpts) = {Name: "ReqOverrun"}]; 
+ 
+    COUNTER_CMD_READ_BYTES_OK = 13                                   [(CounterOpts) = {Name: "CmdReadBytesOk"}]; 
+    COUNTER_CMD_READ_BYTES_TIMEOUT = 14                              [(CounterOpts) = {Name: "CmdReadBytesTimeout"}]; 
+    COUNTER_CMD_READ_BYTES_OTHER_ERROR = 15                          [(CounterOpts) = {Name: "CmdReadBytesOtherError"}]; 
+ 
+    COUNTER_CMD_READ_OK = 16                                         [(CounterOpts) = {Name: "CmdReadOk"}]; 
+    COUNTER_CMD_READ_TIMEOUT = 17                                    [(CounterOpts) = {Name: "CmdReadTimeout"}]; 
+    COUNTER_CMD_READ_OTHER_ERROR = 18                                [(CounterOpts) = {Name: "CmdReadOtherError"}]; 
+    COUNTER_CMD_READ_NODATA = 19                                     [(CounterOpts) = {Name: "CmdReadNodata"}]; 
+ 
+    COUNTER_CMD_DATA_RANGE_READ_BYTES_OK = 20                        [(CounterOpts) = {Name: "CmdDataRangeReadBytesOk"}]; 
+    COUNTER_CMD_DATA_RANGE_READ_BYTES_TIMEOUT = 21                   [(CounterOpts) = {Name: "CmdDataRangeReadBytesTimeout"}]; 
+    COUNTER_CMD_DATA_RANGE_READ_BYTES_OTHER_ERROR = 22               [(CounterOpts) = {Name: "CmdDataRangeReadBytesOtherError"}]; 
+ 
+    COUNTER_CMD_INDEX_RANGE_READ_OK = 23                             [(CounterOpts) = {Name: "CmdIndexRangeReadOk"}]; 
+    COUNTER_CMD_INDEX_RANGE_READ_TIMEOUT = 24                        [(CounterOpts) = {Name: "CmdIndexRangeReadTimeout"}]; 
+    COUNTER_CMD_INDEX_RANGE_READ_OTHER_ERROR = 25                    [(CounterOpts) = {Name: "CmdIndexRangeReadOtherError"}]; 
+ 
+    COUNTER_CMD_DATA_RANGE_READ_ITEMS_OK = 26                        [(CounterOpts) = {Name: "CmdDataRangeReadItemsOk"}]; 
+    COUNTER_CMD_DATA_RANGE_READ_ITEMS_TIMEOUT = 27                   [(CounterOpts) = {Name: "CmdDataRangeReadItemsTimeout"}]; 
+    COUNTER_CMD_DATA_RANGE_READ_ITEMS_OTHER_ERROR = 28               [(CounterOpts) = {Name: "CmdDataRangeReadItemsOtherError"}]; 
+    COUNTER_CMD_DATA_RANGE_READ_ITEMS_NODATA = 29                    [(CounterOpts) = {Name: "CmdDataRangeReadItemsNodata"}]; 
+ 
+    COUNTER_CMD_DELETE_OK = 30                                       [(CounterOpts) = {Name: "CmdDeleteOk"}]; 
+    COUNTER_CMD_DELETE_TIMEOUT = 31                                  [(CounterOpts) = {Name: "CmdDeleteTimeout"}]; 
+    COUNTER_CMD_DELETE_OTHER_ERROR = 32                              [(CounterOpts) = {Name: "CmdDeleteOtherError"}]; 
+ 
+    COUNTER_CMD_DELETE_BYTES_OK = 33                                 [(CounterOpts) = {Name: "CmdDeleteBytesOk"}]; 
+    COUNTER_CMD_DELETE_BYTES_TIMEOUT = 34                            [(CounterOpts) = {Name: "CmdDeleteBytesTimeout"}]; 
+    COUNTER_CMD_DELETE_BYTES_OTHER_ERROR = 35                        [(CounterOpts) = {Name: "CmdDeleteBytesOtherError"}]; 
+ 
+    COUNTER_CMD_RENAME_OK = 36                                       [(CounterOpts) = {Name: "CmdRenameOk"}]; 
+    COUNTER_CMD_RENAME_TIMEOUT = 37                                  [(CounterOpts) = {Name: "CmdRenameTimeout"}]; 
+    COUNTER_CMD_RENAME_OTHER_ERROR = 38                              [(CounterOpts) = {Name: "CmdRenameOtherError"}]; 
+ 
+    COUNTER_CMD_WRITE_BYTES_OK = 39                                  [(CounterOpts) = {Name: "CmdWriteBytesOk"}]; 
+    COUNTER_CMD_WRITE_BYTES_TIMEOUT = 40                             [(CounterOpts) = {Name: "CmdWriteBytesTimeout"}]; 
+    COUNTER_CMD_WRITE_BYTES_OTHER_ERROR = 41                         [(CounterOpts) = {Name: "CmdWriteBytesOtherError"}]; 
+ 
+    COUNTER_CMD_WRITE_OK = 42                                        [(CounterOpts) = {Name: "CmdWriteOk"}]; 
+    COUNTER_CMD_WRITE_TIMEOUT = 43                                   [(CounterOpts) = {Name: "CmdWriteTimeout"}]; 
+    COUNTER_CMD_WRITE_OTHER_ERROR = 44                               [(CounterOpts) = {Name: "CmdWriteOtherError"}]; 
+ 
+    COUNTER_CMD_COPY_RANGE_OK = 45                                   [(CounterOpts) = {Name: "CmdCopyRangeOk"}]; 
+    COUNTER_CMD_COPY_RANGE_TIMEOUT = 46                              [(CounterOpts) = {Name: "CmdCopyRangeTimeout"}]; 
+    COUNTER_CMD_COPY_RANGE_OTHER_ERROR = 47                          [(CounterOpts) = {Name: "CmdCopyRangeOtherError"}]; 
+ 
+    COUNTER_CMD_GUM_OK = 48                                          [(CounterOpts) = {Name: "ConcatOk"}]; 
+    COUNTER_CMD_GUM_TIMEOUT = 49                                     [(CounterOpts) = {Name: "ConcatTimeout"}]; 
+    COUNTER_CMD_GUM_OTHER_ERROR = 50                                 [(CounterOpts) = {Name: "ConcatOtherError"}]; 
 
     COUNTER_READ_BYTES_CHANNEL_0 = 51                                [(CounterOpts) = {Name: "ReadBytesChannel0"}];
     COUNTER_READ_BYTES_CHANNEL_1 = 52                                [(CounterOpts) = {Name: "ReadBytesChannel1"}];
@@ -107,65 +107,65 @@ enum ECumulativeCounters {
     COUNTER_WRITE_BYTES_CHANNEL_13 = 80                              [(CounterOpts) = {Name: "WriteBytesChannel13"}];
     COUNTER_WRITE_BYTES_CHANNEL_14 = 81                              [(CounterOpts) = {Name: "WriteBytesChannel14"}];
     COUNTER_WRITE_BYTES_CHANNEL_15 = 82                              [(CounterOpts) = {Name: "WriteBytesChannel15"}];
-}
-
-enum ESimpleCounters {
-    COUNTER_RECORD_COUNT = 0                                         [(CounterOpts) = {Name: "RecordCount"}];
-    COUNTER_RECORD_BYTES = 1                                         [(CounterOpts) = {Name: "RecordBytes"}];
-    COUNTER_TRASH_COUNT = 2                                          [(CounterOpts) = {Name: "TrashCount"}];
-    COUNTER_TRASH_BYTES = 3                                          [(CounterOpts) = {Name: "TrashBytes"}];
-
-    COUNTER_REQ_WO_IN_FLY = 4                                        [(CounterOpts) = {Name: "ReqWoInFly"}];
-    COUNTER_REQ_WO_QUEUED = 5                                        [(CounterOpts) = {Name: "ReqWoQueued"}];
-
-    COUNTER_REQ_RO_RW_IN_FLY = 6                                     [(CounterOpts) = {Name: "ReqRoRwInFly"}];
-    COUNTER_REQ_RO_RW_QUEUED = 7                                     [(CounterOpts) = {Name: "ReqRoRwQueued"}];
-
-    COUNTER_STATE_STARTING = 8                                       [(CounterOpts) = {Name: "StateStarting"}];
-    COUNTER_STATE_PROCESSING_INIT_QUEUE = 9                          [(CounterOpts) = {Name: "StateProcessingInitQueue"}];
-    COUNTER_STATE_ONLINE = 10                                        [(CounterOpts) = {Name: "StateOnline"}];
+} 
+ 
+enum ESimpleCounters { 
+    COUNTER_RECORD_COUNT = 0                                         [(CounterOpts) = {Name: "RecordCount"}]; 
+    COUNTER_RECORD_BYTES = 1                                         [(CounterOpts) = {Name: "RecordBytes"}]; 
+    COUNTER_TRASH_COUNT = 2                                          [(CounterOpts) = {Name: "TrashCount"}]; 
+    COUNTER_TRASH_BYTES = 3                                          [(CounterOpts) = {Name: "TrashBytes"}]; 
+ 
+    COUNTER_REQ_WO_IN_FLY = 4                                        [(CounterOpts) = {Name: "ReqWoInFly"}]; 
+    COUNTER_REQ_WO_QUEUED = 5                                        [(CounterOpts) = {Name: "ReqWoQueued"}]; 
+ 
+    COUNTER_REQ_RO_RW_IN_FLY = 6                                     [(CounterOpts) = {Name: "ReqRoRwInFly"}]; 
+    COUNTER_REQ_RO_RW_QUEUED = 7                                     [(CounterOpts) = {Name: "ReqRoRwQueued"}]; 
+ 
+    COUNTER_STATE_STARTING = 8                                       [(CounterOpts) = {Name: "StateStarting"}]; 
+    COUNTER_STATE_PROCESSING_INIT_QUEUE = 9                          [(CounterOpts) = {Name: "StateProcessingInitQueue"}]; 
+    COUNTER_STATE_ONLINE = 10                                        [(CounterOpts) = {Name: "StateOnline"}]; 
 
     COUNTER_REQ_RO_INLINE_IN_FLY = 11                                [(CounterOpts) = {Name: "ReqRoInlineInFly"}];
 
     COUNTER_REQ_AGE_MS = 12                                          [(CounterOpts) = {Name: "ReqAgeMs"}];
-}
-
-enum EPercentileCounters {
-    option (GlobalCounterOpts) = {
-        Ranges { Value: 0      Name: "0 ms"      }
-        Ranges { Value: 50     Name: "50 ms"     }
-        Ranges { Value: 100    Name: "100 ms"    }
-        Ranges { Value: 200    Name: "200 ms"    }
-        Ranges { Value: 300    Name: "300 ms"    }
-        Ranges { Value: 400    Name: "400 ms"    }
-        Ranges { Value: 500    Name: "500 ms"    }
-        Ranges { Value: 750    Name: "750 ms"    }
-        Ranges { Value: 1000   Name: "1000 ms"   }
-        Ranges { Value: 1500   Name: "1500 ms"   }
-        Ranges { Value: 2000   Name: "2000 ms"   }
-        Ranges { Value: 5000   Name: "5000 ms"   }
-        Ranges { Value: 10000  Name: "10000 ms"  }
-        Ranges { Value: 20000  Name: "20000 ms"  }
-        Ranges { Value: 30000  Name: "30000 ms"  }
-        Ranges { Value: 60000  Name: "60000 ms"  }
-        Ranges { Value: 120000 Name: "120000 ms" }
-    };
-
-    COUNTER_LATENCY_BS_GET = 0                                       [(CounterOpts) = {Name: "LatencyBsGet"}];
-    COUNTER_LATENCY_BS_PUT = 1                                       [(CounterOpts) = {Name: "LatencyBsPut"}];
-    COUNTER_LATENCY_BS_COLLECT = 2                                   [(CounterOpts) = {Name: "LatencyBsCollect"}];
-
-    COUNTER_LATENCY_BS_OPS = 3                                       [(CounterOpts) = {Name: "LatencyBsOps"}];
-
-    COUNTER_LATENCY_LOCAL_BASE_WO = 4                                [(CounterOpts) = {Name: "LatencyLocalBaseWo"}];
-    COUNTER_LATENCY_LOCAL_BASE_RW = 5                                [(CounterOpts) = {Name: "LatencyLocalBaseRw"}];
-
-    COUNTER_LATENCY_QUEUE_WO = 6                                     [(CounterOpts) = {Name: "LatencyQueueWo"}];
-    COUNTER_LATENCY_QUEUE_RO_RW = 7                                  [(CounterOpts) = {Name: "LatencyQueueRoRw"}];
-
-    COUNTER_LATENCY_FULL_RO = 8                                      [(CounterOpts) = {Name: "LatencyFullRo"}];
-    COUNTER_LATENCY_FULL_WO = 9                                      [(CounterOpts) = {Name: "LatencyFullWo"}];
-    COUNTER_LATENCY_FULL_RW = 10                                     [(CounterOpts) = {Name: "LatencyFullRw"}];
+} 
+ 
+enum EPercentileCounters { 
+    option (GlobalCounterOpts) = { 
+        Ranges { Value: 0      Name: "0 ms"      } 
+        Ranges { Value: 50     Name: "50 ms"     } 
+        Ranges { Value: 100    Name: "100 ms"    } 
+        Ranges { Value: 200    Name: "200 ms"    } 
+        Ranges { Value: 300    Name: "300 ms"    } 
+        Ranges { Value: 400    Name: "400 ms"    } 
+        Ranges { Value: 500    Name: "500 ms"    } 
+        Ranges { Value: 750    Name: "750 ms"    } 
+        Ranges { Value: 1000   Name: "1000 ms"   } 
+        Ranges { Value: 1500   Name: "1500 ms"   } 
+        Ranges { Value: 2000   Name: "2000 ms"   } 
+        Ranges { Value: 5000   Name: "5000 ms"   } 
+        Ranges { Value: 10000  Name: "10000 ms"  } 
+        Ranges { Value: 20000  Name: "20000 ms"  } 
+        Ranges { Value: 30000  Name: "30000 ms"  } 
+        Ranges { Value: 60000  Name: "60000 ms"  } 
+        Ranges { Value: 120000 Name: "120000 ms" } 
+    }; 
+ 
+    COUNTER_LATENCY_BS_GET = 0                                       [(CounterOpts) = {Name: "LatencyBsGet"}]; 
+    COUNTER_LATENCY_BS_PUT = 1                                       [(CounterOpts) = {Name: "LatencyBsPut"}]; 
+    COUNTER_LATENCY_BS_COLLECT = 2                                   [(CounterOpts) = {Name: "LatencyBsCollect"}]; 
+ 
+    COUNTER_LATENCY_BS_OPS = 3                                       [(CounterOpts) = {Name: "LatencyBsOps"}]; 
+ 
+    COUNTER_LATENCY_LOCAL_BASE_WO = 4                                [(CounterOpts) = {Name: "LatencyLocalBaseWo"}]; 
+    COUNTER_LATENCY_LOCAL_BASE_RW = 5                                [(CounterOpts) = {Name: "LatencyLocalBaseRw"}]; 
+ 
+    COUNTER_LATENCY_QUEUE_WO = 6                                     [(CounterOpts) = {Name: "LatencyQueueWo"}]; 
+    COUNTER_LATENCY_QUEUE_RO_RW = 7                                  [(CounterOpts) = {Name: "LatencyQueueRoRw"}]; 
+ 
+    COUNTER_LATENCY_FULL_RO = 8                                      [(CounterOpts) = {Name: "LatencyFullRo"}]; 
+    COUNTER_LATENCY_FULL_WO = 9                                      [(CounterOpts) = {Name: "LatencyFullWo"}]; 
+    COUNTER_LATENCY_FULL_RW = 10                                     [(CounterOpts) = {Name: "LatencyFullRw"}]; 
     COUNTER_LATENCY_FULL_RO_INLINE = 11                              [(CounterOpts) = {Name: "LatencyFullRoInline"}];
 
     COUNTER_HIST_READ_BYTES_CHANNEL_0 = 12                           [(CounterOpts) = {Name: "HIST(KV/ReadBytesChannel0)"
@@ -968,10 +968,10 @@ enum EPercentileCounters {
                                                                                   }
                                                                        ];
 
-}
-
-enum ETxTypes {
-    TXTYPE_INIT = 0                                                  [(TxTypeOpts) = {Name: "TxInit"}];
-    TXTYPE_REQUEST = 1                                               [(TxTypeOpts) = {Name: "TxRequest"}];
-}
-
+} 
+ 
+enum ETxTypes { 
+    TXTYPE_INIT = 0                                                  [(TxTypeOpts) = {Name: "TxInit"}]; 
+    TXTYPE_REQUEST = 1                                               [(TxTypeOpts) = {Name: "TxRequest"}]; 
+} 
+ 
diff --git a/ydb/core/protos/counters_schemeshard.proto b/ydb/core/protos/counters_schemeshard.proto
index a839915c98..24114c1c25 100644
--- a/ydb/core/protos/counters_schemeshard.proto
+++ b/ydb/core/protos/counters_schemeshard.proto
@@ -1,12 +1,12 @@
 import "ydb/core/protos/counters.proto";
-
+ 
 package NKikimr.NSchemeShard;
-
-option java_package = "ru.yandex.kikimr.proto";
-
-option (TabletTypeName) = "SchemeShard"; // Used as prefix for all counters
-
-enum ESimpleCounters {
+ 
+option java_package = "ru.yandex.kikimr.proto"; 
+ 
+option (TabletTypeName) = "SchemeShard"; // Used as prefix for all counters 
+ 
+enum ESimpleCounters { 
     COUNTER_SIMPLE_IGNORE = 0;
 
     COUNTER_RESPONSE_TIME_USEC = 1                        [(CounterOpts) = {Name: "ResponseTimeMicrosec"}];
@@ -148,9 +148,9 @@ enum ESimpleCounters {
     COUNTER_IN_FLIGHT_OPS_TxCreateReplication = 120       [(CounterOpts) = {Name: "InFlightOps/CreateReplication"}];
     COUNTER_IN_FLIGHT_OPS_TxAlterReplication = 121        [(CounterOpts) = {Name: "InFlightOps/AlterReplication"}];
     COUNTER_IN_FLIGHT_OPS_TxDropReplication = 122         [(CounterOpts) = {Name: "InFlightOps/DropReplication"}];
-}
-
-enum ECumulativeCounters {
+} 
+ 
+enum ECumulativeCounters { 
     COUNTER_CUMULATIVE_IGNORE = 0;
 
     COUNTER_FINISHED_OPS_TxInvalid = 1                    [(CounterOpts) = {Name: "FinishedOps/Invalid"}];
@@ -235,10 +235,10 @@ enum ECumulativeCounters {
     COUNTER_FINISHED_OPS_TxCreateReplication = 70         [(CounterOpts) = {Name: "FinishedOps/CreateReplication"}];
     COUNTER_FINISHED_OPS_TxAlterReplication = 71          [(CounterOpts) = {Name: "FinishedOps/AlterReplication"}];
     COUNTER_FINISHED_OPS_TxDropReplication = 72           [(CounterOpts) = {Name: "FinishedOps/DropReplication"}];
-}
-
-enum EPercentileCounters {
-    option (GlobalCounterOpts) = {
+} 
+ 
+enum EPercentileCounters { 
+    option (GlobalCounterOpts) = { 
         Ranges { Value: 0           Name: "(1) < 500 us"        }
         Ranges { Value: 500         Name: "(2) 0.5-1 ms"        }
         Ranges { Value: 1000        Name: "(3) 1-2 ms"          }
@@ -257,8 +257,8 @@ enum EPercentileCounters {
         Ranges { Value: 8000000     Name: "(16) 8-16 s"         }
         Ranges { Value: 16000000    Name: "(17) 16-32 s"        }
         Ranges { Value: 32000000    Name: "(18) 32 < s"         }
-    };
-
+    }; 
+ 
     COUNTER_BACKGROUND_COMPACTION_OK_LATENCY = 0          [(CounterOpts) = {Name: "BackgroundCompactionOkLatency"}];
 
     COUNTER_NUM_SHARDS_BY_TTL_LAG = 1 [(CounterOpts) = {
@@ -274,12 +274,12 @@ enum EPercentileCounters {
         Ranges { Value: 57600 Name: "57600" }
         Ranges { Value: 86400 Name: "inf"   }
     }];
-}
-
-enum ETxTypes {
-    TXTYPE_INIT = 0                                       [(TxTypeOpts) = {Name: "TxInit"}];
-    TXTYPE_INIT_ROOT = 1                                  [(TxTypeOpts) = {Name: "TxInitRoot"}];
-    TXTYPE_PLAN_STEP = 2                                  [(TxTypeOpts) = {Name: "TxPlanStep"}];
+} 
+ 
+enum ETxTypes { 
+    TXTYPE_INIT = 0                                       [(TxTypeOpts) = {Name: "TxInit"}]; 
+    TXTYPE_INIT_ROOT = 1                                  [(TxTypeOpts) = {Name: "TxInitRoot"}]; 
+    TXTYPE_PLAN_STEP = 2                                  [(TxTypeOpts) = {Name: "TxPlanStep"}]; 
     TXTYPE_DESCRIBE_SCHEME = 3                            [(TxTypeOpts) = {Name: "TxDescribeScheme"}];
     TXTYPE_DATASHARD_PROPOSE_RESULT = 4                   [(TxTypeOpts) = {Name: "TxDataShardProposeResult"}];
     TXTYPE_CREATE_TABLET_REPLY = 5                        [(TxTypeOpts) = {Name: "TxCreateTabletReply"}];
@@ -369,4 +369,4 @@ enum ETxTypes {
     TXTYPE_CREATE_REPLICATION_RESULT = 74                 [(TxTypeOpts) = {Name: "TxCreateReplicationResult"}];
     TXTYPE_ALTER_REPLICATION_RESULT = 75                  [(TxTypeOpts) = {Name: "TxAlterReplicationResult"}];
     TXTYPE_DROP_REPLICATION_RESULT = 76                   [(TxTypeOpts) = {Name: "TxDropReplicationResult"}];
-}
+} 
diff --git a/ydb/core/protos/counters_tx_proxy.proto b/ydb/core/protos/counters_tx_proxy.proto
index 476321f88a..35beb13dd3 100644
--- a/ydb/core/protos/counters_tx_proxy.proto
+++ b/ydb/core/protos/counters_tx_proxy.proto
@@ -1,29 +1,29 @@
 import "ydb/core/protos/counters.proto";
-
-package NKikimr.NTxProxy;
-
-option java_package = "ru.yandex.kikimr.proto";
-
-option (TabletTypeName) = "TxProxy"; // Used as prefix for all counters
-
-enum ESimpleCounters {
+ 
+package NKikimr.NTxProxy; 
+ 
+option java_package = "ru.yandex.kikimr.proto"; 
+ 
+option (TabletTypeName) = "TxProxy"; // Used as prefix for all counters 
+ 
+enum ESimpleCounters { 
     COUNTER_SIMPLE_IGNORE = 0;
-}
-
-enum ECumulativeCounters {
+} 
+ 
+enum ECumulativeCounters { 
     COUNTER_CUMULATIVE_IGNORE = 0;
-}
-
-enum EPercentileCounters {
-    option (GlobalCounterOpts) = {
-        Ranges { Value: 0      Name: "0 ms"      }
-        Ranges { Value: 1      Name: "1 ms"      }
-    };
-
+} 
+ 
+enum EPercentileCounters { 
+    option (GlobalCounterOpts) = { 
+        Ranges { Value: 0      Name: "0 ms"      } 
+        Ranges { Value: 1      Name: "1 ms"      } 
+    }; 
+ 
     COUNTER_PERCENTILE_IGNORE = 0;
-}
-
-enum ETxTypes {
-    TXTYPE_INIT = 0                                       [(TxTypeOpts) = {Name: "TxInit"}];
-    TXTYPE_RESERVE_IDS = 1                                [(TxTypeOpts) = {Name: "TxReserveIds"}];
-}
+} 
+ 
+enum ETxTypes { 
+    TXTYPE_INIT = 0                                       [(TxTypeOpts) = {Name: "TxInit"}]; 
+    TXTYPE_RESERVE_IDS = 1                                [(TxTypeOpts) = {Name: "TxReserveIds"}]; 
+} 
diff --git a/ydb/core/protos/kesus.proto b/ydb/core/protos/kesus.proto
index 7c03a3ccd9..68eac744ee 100644
--- a/ydb/core/protos/kesus.proto
+++ b/ydb/core/protos/kesus.proto
@@ -247,75 +247,75 @@ message TEvSessionStolen {
 //
 // Quoter control API.
 //
-message TAccountingConfig {
-    // Account consumed resources and send billing metrics.
-    // Default value is false (not inherited).
-    bool Enabled = 1;
-
-    // Period to report consumption history from clients to kesus
-    // Default value is inherited from parent or equals 5000 ms for root.
-    uint64 ReportPeriodMs = 2;
-
-    // Consumption history period that is sent in one message to accounting actor.
-    // Default value is inherited from parent or equals 1000 ms for root.
-    uint64 AccountPeriodMs = 3;
-
-    // Time window to collect data from every client.
-    // Any client account message that is `CollectPeriod` late is discarded (not accounted or billed).
-    // Default value is inherited from parent or equals 30 seconds for root.
-    uint64 CollectPeriodSec = 4;
-
-    // Provisioned consumption limit in units per second.
-    // Effective value is limited by corresponding MaxUnitsPerSecond.
-    // Default value is 0 (not inherited).
-    double ProvisionedUnitsPerSecond = 5;
-
-    // Provisioned allowed burst equals ProvisionedCoefficient*ProvisionedUnitsPerSecond units.
-    // Effective value is limited by corresponding PrefetchCoefficient.
-    // Default value is inherited from parent or equals 60 for root.
-    double ProvisionedCoefficient = 6;
-
-    // On-demand allowed burst equals OvershootCoefficient*PrefetchCoefficient*MaxUnitsPerSecond units.
-    // Should be greater or equal to 1.0
-    // Default value is inherited from parent or equals 1.1 for root
-    double OvershootCoefficient = 7;
-
-    // Billing metric description.
-    message TMetric {
-        // Send this metric to billing.
-        // Default value is false (not inherited).
-        bool Enabled = 1;
-
-        // Billing metric period (aligned to hour boundary).
-        // Default value is inherited from parent or equals 60 seconds for root.
-        uint64 BillingPeriodSec = 2;
-
-        // Billing metric JSON fields (inherited from parent if not set)
-        string Version = 3;
-        string Schema = 5;
-        string CloudId = 6;
-        string FolderId = 7;
-        string ResourceId = 8;
-        string SourceId = 9;
-        map<string, string> Tags = 10;
-    }
-
-    // Consumption within provisioned limit.
-    // Informative metric that should be sent to billing (not billed).
-    TMetric Provisioned = 8;
-
-    // Consumption that exceeds provisioned limit is billed as on-demand.
-    TMetric OnDemand = 9;
-
-    // Consumption that exceeds even on-demand limit.
-    // Normally it is free and should not be billed.
-    TMetric Overshoot = 10;
-}
-
+message TAccountingConfig { 
+    // Account consumed resources and send billing metrics. 
+    // Default value is false (not inherited). 
+    bool Enabled = 1; 
+ 
+    // Period to report consumption history from clients to kesus 
+    // Default value is inherited from parent or equals 5000 ms for root. 
+    uint64 ReportPeriodMs = 2; 
+ 
+    // Consumption history period that is sent in one message to accounting actor. 
+    // Default value is inherited from parent or equals 1000 ms for root. 
+    uint64 AccountPeriodMs = 3; 
+ 
+    // Time window to collect data from every client. 
+    // Any client account message that is `CollectPeriod` late is discarded (not accounted or billed). 
+    // Default value is inherited from parent or equals 30 seconds for root. 
+    uint64 CollectPeriodSec = 4; 
+ 
+    // Provisioned consumption limit in units per second. 
+    // Effective value is limited by corresponding MaxUnitsPerSecond. 
+    // Default value is 0 (not inherited). 
+    double ProvisionedUnitsPerSecond = 5; 
+ 
+    // Provisioned allowed burst equals ProvisionedCoefficient*ProvisionedUnitsPerSecond units. 
+    // Effective value is limited by corresponding PrefetchCoefficient. 
+    // Default value is inherited from parent or equals 60 for root. 
+    double ProvisionedCoefficient = 6; 
+ 
+    // On-demand allowed burst equals OvershootCoefficient*PrefetchCoefficient*MaxUnitsPerSecond units. 
+    // Should be greater or equal to 1.0 
+    // Default value is inherited from parent or equals 1.1 for root 
+    double OvershootCoefficient = 7; 
+ 
+    // Billing metric description. 
+    message TMetric { 
+        // Send this metric to billing. 
+        // Default value is false (not inherited). 
+        bool Enabled = 1; 
+ 
+        // Billing metric period (aligned to hour boundary). 
+        // Default value is inherited from parent or equals 60 seconds for root. 
+        uint64 BillingPeriodSec = 2; 
+ 
+        // Billing metric JSON fields (inherited from parent if not set) 
+        string Version = 3; 
+        string Schema = 5; 
+        string CloudId = 6; 
+        string FolderId = 7; 
+        string ResourceId = 8; 
+        string SourceId = 9; 
+        map<string, string> Tags = 10; 
+    } 
+ 
+    // Consumption within provisioned limit. 
+    // Informative metric that should be sent to billing (not billed). 
+    TMetric Provisioned = 8; 
+ 
+    // Consumption that exceeds provisioned limit is billed as on-demand. 
+    TMetric OnDemand = 9; 
+ 
+    // Consumption that exceeds even on-demand limit. 
+    // Normally it is free and should not be billed. 
+    TMetric Overshoot = 10; 
+} 
+ 
 message THierarchicalDRRResourceConfig {
     // Resource consumption speed limit.
     // Value is required for root resource.
-    // 0 is equivalent to not set (inherit value from parent).
+    // 0 is equivalent to not set (inherit value from parent). 
     // Must be nonnegative.
     double MaxUnitsPerSecond = 3;
 
@@ -332,16 +332,16 @@ message THierarchicalDRRResourceConfig {
     // Default value is 1.
     uint32 Weight = 5;
 
-    // Prefetch in local bucket up to PrefetchCoefficient*MaxUnitsPerSecond units (full size).
-    // Default value is inherited from parent or equals 0.2 for root.
-    // Disables prefetching if any negative value is set
-    // (It is useful to avoid bursts in case of large number of local buckets).
-    double PrefetchCoefficient = 6;
+    // Prefetch in local bucket up to PrefetchCoefficient*MaxUnitsPerSecond units (full size). 
+    // Default value is inherited from parent or equals 0.2 for root. 
+    // Disables prefetching if any negative value is set 
+    // (It is useful to avoid bursts in case of large number of local buckets). 
+    double PrefetchCoefficient = 6; 
 
-    // Prefetching starts if there is less than PrefetchWatermark fraction of full local bucket left.
-    // Default value is inherited from parent or equals 0.75 for root.
-    // Must be nonnegative and less than or equal to 1.
-    double PrefetchWatermark = 7;
+    // Prefetching starts if there is less than PrefetchWatermark fraction of full local bucket left. 
+    // Default value is inherited from parent or equals 0.75 for root. 
+    // Must be nonnegative and less than or equal to 1. 
+    double PrefetchWatermark = 7; 
 
     // deprecated settings {
     message TSpeedSettings {
@@ -364,7 +364,7 @@ message TStreamingQuoterResource {
         // For Hierarhical DRR algorithm.
         THierarchicalDRRResourceConfig HierarhicalDRRResourceConfig = 3;
     }
-    TAccountingConfig AccountingConfig = 4;
+    TAccountingConfig AccountingConfig = 4; 
 }
 
 message TEvDescribeQuoterResources {
@@ -430,7 +430,7 @@ message TEvSubscribeOnResourcesResult {
         TKesusError Error = 2;
         TStreamingQuoterResource EffectiveProps = 3;
     }
-    repeated TResourceSubscribeResult Results = 1; // Resources are in the same order that they were specified in request.
+    repeated TResourceSubscribeResult Results = 1; // Resources are in the same order that they were specified in request. 
 }
 
 // Notification about resources consumption state update.
@@ -478,26 +478,26 @@ message TEvGetQuoterResourceCountersResult {
 
     repeated TResourceCounters ResourceCounters = 1;
 }
-
-// Account consumed resources into metering.
-// Event is sent from client to Kesus.
-message TEvAccountResources {
-    message TResourceInfo {
-        uint64 ResourceId = 1;
-        uint64 StartUs = 2; // The first interval start time in microseconds since epoch
-        uint64 IntervalUs = 3; // Intervals duration in microseconds
-        repeated double Amount = 4; // Amounts of resources consumed during intervals
-    }
-    repeated TResourceInfo ResourcesInfo = 1;
-    NActorsProto.TActorId ActorID = 2;
-}
-
-// Ack for TEvAccountResources event.
-message TEvAccountResourcesAck {
-    message TResourceInfo {
-        uint64 ResourceId = 1;
-        uint64 AcceptedUs = 2; // Timestamp to drop client's data before (i.e. StartUs for the next request)
-        TKesusError StateNotification = 4; // Resource can be deleted before accounting. In this case Kesus will send an error for resource.
-    }
-    repeated TResourceInfo ResourcesInfo = 1;
-}
+ 
+// Account consumed resources into metering. 
+// Event is sent from client to Kesus. 
+message TEvAccountResources { 
+    message TResourceInfo { 
+        uint64 ResourceId = 1; 
+        uint64 StartUs = 2; // The first interval start time in microseconds since epoch 
+        uint64 IntervalUs = 3; // Intervals duration in microseconds 
+        repeated double Amount = 4; // Amounts of resources consumed during intervals 
+    } 
+    repeated TResourceInfo ResourcesInfo = 1; 
+    NActorsProto.TActorId ActorID = 2; 
+} 
+ 
+// Ack for TEvAccountResources event. 
+message TEvAccountResourcesAck { 
+    message TResourceInfo { 
+        uint64 ResourceId = 1; 
+        uint64 AcceptedUs = 2; // Timestamp to drop client's data before (i.e. StartUs for the next request) 
+        TKesusError StateNotification = 4; // Resource can be deleted before accounting. In this case Kesus will send an error for resource. 
+    } 
+    repeated TResourceInfo ResourcesInfo = 1; 
+} 
diff --git a/ydb/core/protos/node_whiteboard.proto b/ydb/core/protos/node_whiteboard.proto
index b96713ca29..91a4da73dc 100644
--- a/ydb/core/protos/node_whiteboard.proto
+++ b/ydb/core/protos/node_whiteboard.proto
@@ -108,8 +108,8 @@ message TPDiskStateInfo {
     optional NKikimrBlobStorage.TPDiskState.E State = 9;
     optional uint32 NodeId = 10; // filled during merge
     optional uint32 Count = 13; // filled during group count
-    optional EFlag Device = 14;
-    optional EFlag Realtime = 15;
+    optional EFlag Device = 14; 
+    optional EFlag Realtime = 15; 
     // State as flag - to be filled
     optional EFlag StateFlag = 16;
     // overall state - to be filled
diff --git a/ydb/core/protos/services.proto b/ydb/core/protos/services.proto
index c17c8a7dc3..730c47e0a9 100644
--- a/ydb/core/protos/services.proto
+++ b/ydb/core/protos/services.proto
@@ -847,7 +847,7 @@ message TActivity {
         YQL_PRIVATE_GET_TASK_ACTOR = 541;
         YQL_PRIVATE_WRITE_TASK_ACTOR = 542;
         YQL_NODES_MANAGER_ACTOR = 543;
-        KESUS_ACCOUNTING_ACTOR = 544;
+        KESUS_ACCOUNTING_ACTOR = 544; 
         BLOCKSTORE_PARTITION_COMMON = 545;
         INTERCONNECT_PROXY_WRAPPER = 546;
         CLOUD_STORAGE_HIVE_PROXY = 547;
diff --git a/ydb/core/protos/ya.make b/ydb/core/protos/ya.make
index 70bb65514c..4ec5eb2259 100644
--- a/ydb/core/protos/ya.make
+++ b/ydb/core/protos/ya.make
@@ -38,22 +38,22 @@ SRCS(
     console_tenant.proto
     counters_tx_allocator.proto
     counters_bs_controller.proto
-    counters_coordinator.proto
+    counters_coordinator.proto 
     counters_columnshard.proto
-    counters_datashard.proto
-    counters_hive.proto
+    counters_datashard.proto 
+    counters_hive.proto 
     counters_kesus.proto
-    counters_keyvalue.proto
+    counters_keyvalue.proto 
     counters_olapshard.proto
     counters_pq.proto
     counters_replication.proto
-    counters_schemeshard.proto
+    counters_schemeshard.proto 
     counters_sequenceshard.proto
     counters_sysview_processor.proto
     counters_testshard.proto
-    counters_tx_proxy.proto
+    counters_tx_proxy.proto 
     counters_mediator.proto
-    counters.proto
+    counters.proto 
     database_basic_sausage_metainfo.proto
     drivemodel.proto
     export.proto
diff --git a/ydb/core/quoter/kesus_quoter_proxy.cpp b/ydb/core/quoter/kesus_quoter_proxy.cpp
index 4d2d20691e..f9993cd19e 100644
--- a/ydb/core/quoter/kesus_quoter_proxy.cpp
+++ b/ydb/core/quoter/kesus_quoter_proxy.cpp
@@ -41,8 +41,8 @@ namespace NKikimr {
 namespace NQuoter {
 
 static constexpr double FADING_ALLOCATION_COEFFICIENT = 0.999;
-static constexpr double PREFETCH_COEFFICIENT_DEFAULT = 0.20;
-static constexpr double PREFETCH_WATERMARK_DEFAULT = 0.75;
+static constexpr double PREFETCH_COEFFICIENT_DEFAULT = 0.20; 
+static constexpr double PREFETCH_WATERMARK_DEFAULT = 0.75; 
 
 using NKesus::TEvKesus;
 
@@ -65,12 +65,12 @@ class TKesusQuoterProxy : public TActorBootstrapped<TKesusQuoterProxy> {
 
         TKesusResourceAllocationStatistics AllocStats;
 
-        THolder<TTimeSeriesVec<double>> History;
-        bool PendingReport = false; // History contains data to send
-        TInstant HistoryAccepted; // Do not report history before this instant
-        TInstant LastReport; // Aligned to `ReportPeriod` grid timestamp of last sent report
-        TDuration ReportPeriod = TDuration::Max();
-
+        THolder<TTimeSeriesVec<double>> History; 
+        bool PendingReport = false; // History contains data to send 
+        TInstant HistoryAccepted; // Do not report history before this instant 
+        TInstant LastReport; // Aligned to `ReportPeriod` grid timestamp of last sent report 
+        TDuration ReportPeriod = TDuration::Max(); 
+ 
         struct TCounters {
             class TDoubleCounter {
             public:
@@ -163,19 +163,19 @@ class TKesusQuoterProxy : public TActorBootstrapped<TKesusQuoterProxy> {
 
         void SetProps(const NKikimrKesus::TStreamingQuoterResource& props) {
             Props = props;
-            const auto& cfg = Props.GetHierarhicalDRRResourceConfig();
-            const double speed = cfg.GetMaxUnitsPerSecond();
-            const double prefetch = cfg.GetPrefetchCoefficient() ? cfg.GetPrefetchCoefficient() : PREFETCH_COEFFICIENT_DEFAULT;
-            const double watermark = std::clamp(cfg.GetPrefetchWatermark() ? cfg.GetPrefetchWatermark() : PREFETCH_WATERMARK_DEFAULT, 0.0, 1.0);
-
-            const double prevBucketMaxSize = ResourceBucketMaxSize;
-            ResourceBucketMaxSize = Max(0.0, speed * prefetch);
-            ResourceBucketMinSize = ResourceBucketMaxSize * watermark;
-            Y_VERIFY(ResourceBucketMinSize <= ResourceBucketMaxSize);
-
-            // Decrease available resource if speed or prefetch settings have been changed.
-            if (prefetch > 0.0) { // https://st.yandex-team.ru/RTMR-3774
-                if (InitedProps && ResourceBucketMaxSize < prevBucketMaxSize) {
+            const auto& cfg = Props.GetHierarhicalDRRResourceConfig(); 
+            const double speed = cfg.GetMaxUnitsPerSecond(); 
+            const double prefetch = cfg.GetPrefetchCoefficient() ? cfg.GetPrefetchCoefficient() : PREFETCH_COEFFICIENT_DEFAULT; 
+            const double watermark = std::clamp(cfg.GetPrefetchWatermark() ? cfg.GetPrefetchWatermark() : PREFETCH_WATERMARK_DEFAULT, 0.0, 1.0); 
+
+            const double prevBucketMaxSize = ResourceBucketMaxSize; 
+            ResourceBucketMaxSize = Max(0.0, speed * prefetch); 
+            ResourceBucketMinSize = ResourceBucketMaxSize * watermark; 
+            Y_VERIFY(ResourceBucketMinSize <= ResourceBucketMaxSize); 
+ 
+            // Decrease available resource if speed or prefetch settings have been changed. 
+            if (prefetch > 0.0) { // https://st.yandex-team.ru/RTMR-3774 
+                if (InitedProps && ResourceBucketMaxSize < prevBucketMaxSize) { 
                     if (const double maxAvailable = ResourceBucketMaxSize + QueueWeight; Available > maxAvailable) {
                         if (Counters.Dropped) {
                             const double dropped = Available - maxAvailable;
@@ -186,18 +186,18 @@ class TKesusQuoterProxy : public TActorBootstrapped<TKesusQuoterProxy> {
                 }
             }
 
-            if (Props.GetAccountingConfig().GetEnabled()) {
-                ReportPeriod = TDuration::MilliSeconds(Props.GetAccountingConfig().GetReportPeriodMs());
-                THolder<TTimeSeriesVec<double>> history(new TTimeSeriesVec<double>(Props.GetAccountingConfig().GetCollectPeriodSec()));
-                if (History) {
-                    history->Add(*History.Get());
-                }
-                History.Reset(history.Release());
-            } else {
-                ReportPeriod = TDuration::Max();
-                History.Destroy();
-            }
-
+            if (Props.GetAccountingConfig().GetEnabled()) { 
+                ReportPeriod = TDuration::MilliSeconds(Props.GetAccountingConfig().GetReportPeriodMs()); 
+                THolder<TTimeSeriesVec<double>> history(new TTimeSeriesVec<double>(Props.GetAccountingConfig().GetCollectPeriodSec())); 
+                if (History) { 
+                    history->Add(*History.Get()); 
+                } 
+                History.Reset(history.Release()); 
+            } else { 
+                ReportPeriod = TDuration::Max(); 
+                History.Destroy(); 
+            } 
+ 
             if (!InitedProps) {
                 InitedProps = true;
                 SetAvailable(ResourceBucketMaxSize);
@@ -260,7 +260,7 @@ class TKesusQuoterProxy : public TActorBootstrapped<TKesusQuoterProxy> {
     ui64 NextCookie = 1;
 
     THolder<NKesus::TEvKesus::TEvUpdateConsumptionState> UpdateEv;
-    THolder<NKesus::TEvKesus::TEvAccountResources> AccountEv;
+    THolder<NKesus::TEvKesus::TEvAccountResources> AccountEv; 
     THolder<TEvQuota::TEvProxyUpdate> ProxyUpdateEv;
     THashMap<TDuration, THolder<TEvPrivate::TEvOfflineResourceAllocation>> OfflineAllocationEvSchedule;
 
@@ -438,13 +438,13 @@ private:
         }
     }
 
-    void InitAccountEv() {
-        if (!AccountEv) {
-            AccountEv = MakeHolder<NKesus::TEvKesus::TEvAccountResources>();
-            ActorIdToProto(SelfId(), AccountEv->Record.MutableActorID());
-        }
-    }
-
+    void InitAccountEv() { 
+        if (!AccountEv) { 
+            AccountEv = MakeHolder<NKesus::TEvKesus::TEvAccountResources>(); 
+            ActorIdToProto(SelfId(), AccountEv->Record.MutableActorID()); 
+        } 
+    } 
+ 
     void SendDeferredEvents() {
         if (Connected && UpdateEv) {
             KESUS_PROXY_LOG_TRACE("UpdateConsumptionState(" << UpdateEv->Record << ")");
@@ -452,12 +452,12 @@ private:
         }
         UpdateEv.Reset();
 
-        if (Connected && AccountEv && AccountEv->Record.GetResourcesInfo().size() > 0) {
-            KESUS_PROXY_LOG_TRACE("AccountResources(" << AccountEv->Record << ")");
-            NTabletPipe::SendData(SelfId(), KesusPipeClient, AccountEv.Release());
-        }
-        AccountEv.Reset();
-
+        if (Connected && AccountEv && AccountEv->Record.GetResourcesInfo().size() > 0) { 
+            KESUS_PROXY_LOG_TRACE("AccountResources(" << AccountEv->Record << ")"); 
+            NTabletPipe::SendData(SelfId(), KesusPipeClient, AccountEv.Release()); 
+        } 
+        AccountEv.Reset(); 
+ 
         if (ProxyUpdateEv && ProxyUpdateEv->Resources) {
             SendToService(std::move(ProxyUpdateEv));
         }
@@ -537,39 +537,39 @@ private:
         }
     }
 
-    void ReportSession(TResourceState& res) {
-        if (Connected && res.History) {
-            InitAccountEv();
-            auto* resInfo = AccountEv->Record.AddResourcesInfo();
-            bool hasNonZeroAmount = false;
-            TInstant start;
-            double totalAmount = 0;
-            for (TInstant i = res.History->Begin(), e = res.History->End(); i != e; i = res.History->Next(i)) {
-                if (i >= res.HistoryAccepted) {
-                    if (!start) {
-                        start = i;
-                    }
-                    double amount = res.History->Get(i);
-                    if (amount > 0) {
-                        hasNonZeroAmount = true;
-                        totalAmount += amount;
-                    }
-                    resInfo->AddAmount(amount);
-                }
-            }
-            KESUS_PROXY_LOG_INFO("Report session to \"" << res.Resource << "\". Total amount: " << totalAmount);
-            if (hasNonZeroAmount) {
-                resInfo->SetResourceId(res.ResId);
-                resInfo->SetStartUs(start.MicroSeconds());
-                resInfo->SetIntervalUs(res.History->Interval().MicroSeconds());
-            } else {
-                // We have no useful data to report
-                res.PendingReport = false;
-                AccountEv->Record.MutableResourcesInfo()->RemoveLast(); // undo AddResourcesInfo()
-            }
-        }
-    }
-
+    void ReportSession(TResourceState& res) { 
+        if (Connected && res.History) { 
+            InitAccountEv(); 
+            auto* resInfo = AccountEv->Record.AddResourcesInfo(); 
+            bool hasNonZeroAmount = false; 
+            TInstant start; 
+            double totalAmount = 0; 
+            for (TInstant i = res.History->Begin(), e = res.History->End(); i != e; i = res.History->Next(i)) { 
+                if (i >= res.HistoryAccepted) { 
+                    if (!start) { 
+                        start = i; 
+                    } 
+                    double amount = res.History->Get(i); 
+                    if (amount > 0) { 
+                        hasNonZeroAmount = true; 
+                        totalAmount += amount; 
+                    } 
+                    resInfo->AddAmount(amount); 
+                } 
+            } 
+            KESUS_PROXY_LOG_INFO("Report session to \"" << res.Resource << "\". Total amount: " << totalAmount); 
+            if (hasNonZeroAmount) { 
+                resInfo->SetResourceId(res.ResId); 
+                resInfo->SetStartUs(start.MicroSeconds()); 
+                resInfo->SetIntervalUs(res.History->Interval().MicroSeconds()); 
+            } else { 
+                // We have no useful data to report 
+                res.PendingReport = false; 
+                AccountEv->Record.MutableResourcesInfo()->RemoveLast(); // undo AddResourcesInfo() 
+            } 
+        } 
+    } 
+ 
     void Handle(TEvQuota::TEvProxyStats::TPtr& ev) {
         TEvQuota::TEvProxyStats* msg = ev->Get();
         KESUS_PROXY_LOG_TRACE("ProxyStats(" << PrintResources(*ev->Get()) << ")");
@@ -580,11 +580,11 @@ private:
                 res.SetAvailable(res.Available - stat.Consumed);
                 res.QueueWeight = stat.QueueWeight;
                 res.Counters.AddConsumed(stat.Consumed);
-                if (res.History) {
-                    res.History->Add(stat.History);
-                    res.PendingReport = true;
-                    CheckReport(res, TActivationContext::Now());
-                }
+                if (res.History) { 
+                    res.History->Add(stat.History); 
+                    res.PendingReport = true; 
+                    CheckReport(res, TActivationContext::Now()); 
+                } 
                 if (res.Counters.QueueSize) {
                     *res.Counters.QueueSize = static_cast<i64>(stat.QueueSize);
                     *res.Counters.QueueWeight = static_cast<i64>(stat.QueueWeight);
@@ -753,17 +753,17 @@ private:
     void Handle(NKesus::TEvKesus::TEvUpdateConsumptionStateAck::TPtr&) {
     }
 
-    void Handle(NKesus::TEvKesus::TEvAccountResourcesAck::TPtr& ev) {
-        const auto& result = ev->Get()->Record;
-        KESUS_PROXY_LOG_TRACE("AccountResourcesAck(" << result << ")");
-        for (int i = 0; i < result.GetResourcesInfo().size(); ++i) {
-            const auto& resInfo = result.GetResourcesInfo(i);
-            if (TResourceState* res = FindResource(resInfo.GetResourceId())) {
-                res->HistoryAccepted = Max(res->HistoryAccepted, TInstant::MicroSeconds(resInfo.GetAcceptedUs()));
-            }
-        }
-    }
-
+    void Handle(NKesus::TEvKesus::TEvAccountResourcesAck::TPtr& ev) { 
+        const auto& result = ev->Get()->Record; 
+        KESUS_PROXY_LOG_TRACE("AccountResourcesAck(" << result << ")"); 
+        for (int i = 0; i < result.GetResourcesInfo().size(); ++i) { 
+            const auto& resInfo = result.GetResourcesInfo(i); 
+            if (TResourceState* res = FindResource(resInfo.GetResourceId())) { 
+                res->HistoryAccepted = Max(res->HistoryAccepted, TInstant::MicroSeconds(resInfo.GetAcceptedUs())); 
+            } 
+        } 
+    } 
+ 
     THolder<TEvQuota::TEvProxyUpdate> CreateUpdateEvent(TEvQuota::EUpdateState state = TEvQuota::EUpdateState::Normal) const {
         return MakeHolder<TEvQuota::TEvProxyUpdate>(QuoterId, state);
     }
@@ -840,17 +840,17 @@ private:
         }
     }
 
-    void CheckReport(TResourceState& res, TInstant now) {
-        if (res.LastReport + res.ReportPeriod < now && res.PendingReport) {
-            ReportSession(res);
-            // `LastReport` must be aligned to send resources' stats in one message
-            // in case they have the same `ReportPeriod`
-            Y_ASSERT(res.ReportPeriod < TDuration::Max());
-            ui64 periodUs = res.ReportPeriod.MicroSeconds();
-            res.LastReport = TInstant::MicroSeconds(res.ReportPeriod.MicroSeconds() / periodUs * periodUs);
-        }
-    }
-
+    void CheckReport(TResourceState& res, TInstant now) { 
+        if (res.LastReport + res.ReportPeriod < now && res.PendingReport) { 
+            ReportSession(res); 
+            // `LastReport` must be aligned to send resources' stats in one message 
+            // in case they have the same `ReportPeriod` 
+            Y_ASSERT(res.ReportPeriod < TDuration::Max()); 
+            ui64 periodUs = res.ReportPeriod.MicroSeconds(); 
+            res.LastReport = TInstant::MicroSeconds(res.ReportPeriod.MicroSeconds() / periodUs * periodUs); 
+        } 
+    } 
+ 
     static TString GetLogPrefix(const TVector<TString>& path) {
         return TStringBuilder() << "[" << CanonizePath(path) << "]: ";
     }
@@ -899,7 +899,7 @@ public:
             hFunc(NKesus::TEvKesus::TEvSubscribeOnResourcesResult, Handle);
             hFunc(NKesus::TEvKesus::TEvResourcesAllocated, Handle);
             hFunc(NKesus::TEvKesus::TEvUpdateConsumptionStateAck, Handle);
-            hFunc(NKesus::TEvKesus::TEvAccountResourcesAck, Handle);
+            hFunc(NKesus::TEvKesus::TEvAccountResourcesAck, Handle); 
             hFunc(TEvPrivate::TEvOfflineResourceAllocation, Handle);
             default:
                 KESUS_PROXY_LOG_WARN("TKesusQuoterProxy::StateFunc unexpected event type# "
diff --git a/ydb/core/quoter/kesus_quoter_ut.cpp b/ydb/core/quoter/kesus_quoter_ut.cpp
index 430db7db48..b44d55c5de 100644
--- a/ydb/core/quoter/kesus_quoter_ut.cpp
+++ b/ydb/core/quoter/kesus_quoter_ut.cpp
@@ -70,25 +70,25 @@ Y_UNIT_TEST_SUITE(QuoterWithKesusTest) {
         setup.GetQuota(TKesusQuoterTestSetup::DEFAULT_KESUS_PATH, TKesusQuoterTestSetup::DEFAULT_KESUS_RESOURCE, 40, TDuration::MilliSeconds(500), TEvQuota::TEvClearance::EResult::Deadline); // default rate is 10
     }
 
-    Y_UNIT_TEST(PrefetchCoefficient) {
-        TKesusQuoterTestSetup setup;
-        NKikimrKesus::THierarchicalDRRResourceConfig cfg;
-        double rate = 100.0;
-        double prefetch = 1000.0;
-        cfg.SetMaxUnitsPerSecond(rate);
-        cfg.SetPrefetchCoefficient(prefetch);
-        setup.CreateKesusResource(TKesusQuoterTestSetup::DEFAULT_KESUS_PATH, "root", cfg);
-
-        cfg.ClearMaxUnitsPerSecond();
-        cfg.ClearPrefetchCoefficient(); // should be inherited from root
-        setup.CreateKesusResource(TKesusQuoterTestSetup::DEFAULT_KESUS_PATH, "root/leaf", cfg);
-
-        setup.GetQuota(TKesusQuoterTestSetup::DEFAULT_KESUS_PATH, "root/leaf"); // stabilization
-        setup.GetQuota(TKesusQuoterTestSetup::DEFAULT_KESUS_PATH, "root/leaf", rate * prefetch * 0.9, TDuration::MilliSeconds(500));
-        setup.GetQuota(TKesusQuoterTestSetup::DEFAULT_KESUS_PATH, "root/leaf", rate * prefetch * 0.2, TDuration::MilliSeconds(500));
-        setup.GetQuota(TKesusQuoterTestSetup::DEFAULT_KESUS_PATH, "root/leaf", 1, TDuration::MilliSeconds(500), TEvQuota::TEvClearance::EResult::Deadline);
-    }
-
+    Y_UNIT_TEST(PrefetchCoefficient) { 
+        TKesusQuoterTestSetup setup; 
+        NKikimrKesus::THierarchicalDRRResourceConfig cfg; 
+        double rate = 100.0; 
+        double prefetch = 1000.0; 
+        cfg.SetMaxUnitsPerSecond(rate); 
+        cfg.SetPrefetchCoefficient(prefetch); 
+        setup.CreateKesusResource(TKesusQuoterTestSetup::DEFAULT_KESUS_PATH, "root", cfg); 
+ 
+        cfg.ClearMaxUnitsPerSecond(); 
+        cfg.ClearPrefetchCoefficient(); // should be inherited from root 
+        setup.CreateKesusResource(TKesusQuoterTestSetup::DEFAULT_KESUS_PATH, "root/leaf", cfg); 
+ 
+        setup.GetQuota(TKesusQuoterTestSetup::DEFAULT_KESUS_PATH, "root/leaf"); // stabilization 
+        setup.GetQuota(TKesusQuoterTestSetup::DEFAULT_KESUS_PATH, "root/leaf", rate * prefetch * 0.9, TDuration::MilliSeconds(500)); 
+        setup.GetQuota(TKesusQuoterTestSetup::DEFAULT_KESUS_PATH, "root/leaf", rate * prefetch * 0.2, TDuration::MilliSeconds(500)); 
+        setup.GetQuota(TKesusQuoterTestSetup::DEFAULT_KESUS_PATH, "root/leaf", 1, TDuration::MilliSeconds(500), TEvQuota::TEvClearance::EResult::Deadline); 
+    } 
+ 
     Y_UNIT_TEST(GetsQuotaAfterPause) {
         TKesusQuoterTestSetup setup;
         setup.GetQuota(TKesusQuoterTestSetup::DEFAULT_KESUS_PATH, TKesusQuoterTestSetup::DEFAULT_KESUS_RESOURCE, 12);
@@ -305,7 +305,7 @@ Y_UNIT_TEST_SUITE(KesusProxyTest) {
                 UNIT_ASSERT(record.GetResourcesInfo(0).GetConsumeResource());
             }));
 
-        setup.SendProxyStats({TEvQuota::TProxyStat(43, 1, 0, {}, 3, 5.0, 0, 0)});
+        setup.SendProxyStats({TEvQuota::TProxyStat(43, 1, 0, {}, 3, 5.0, 0, 0)}); 
         setup.WaitEvent<NKesus::TEvKesus::TEvUpdateConsumptionState>();
 
         // Disconnected
@@ -370,7 +370,7 @@ Y_UNIT_TEST_SUITE(KesusProxyTest) {
         auto session = setup.ProxyRequest("res");
         UNIT_ASSERT_VALUES_EQUAL(session->Get()->ResourceId, 42);
 
-        setup.SendProxyStats({TEvQuota::TProxyStat(42, 1, 0, {}, 1, 25.0, 0, 0)});
+        setup.SendProxyStats({TEvQuota::TProxyStat(42, 1, 0, {}, 1, 25.0, 0, 0)}); 
 
         auto& startSession =
             EXPECT_CALL(*pipe, OnUpdateConsumptionState(_, _))
@@ -416,7 +416,7 @@ Y_UNIT_TEST_SUITE(KesusProxyTest) {
                 UNIT_ASSERT(record.GetResourcesInfo(0).GetConsumeResource());
             }));
 
-        setup.SendProxyStats({TEvQuota::TProxyStat(42, 1, 0, {}, 3, 5.0, 0, 0)});
+        setup.SendProxyStats({TEvQuota::TProxyStat(42, 1, 0, {}, 3, 5.0, 0, 0)}); 
         setup.WaitEvent<NKesus::TEvKesus::TEvUpdateConsumptionState>();
 
         // Disconnected
diff --git a/ydb/core/quoter/quoter_service.cpp b/ydb/core/quoter/quoter_service.cpp
index b9a1b629f5..fa195def2a 100644
--- a/ydb/core/quoter/quoter_service.cpp
+++ b/ydb/core/quoter/quoter_service.cpp
@@ -254,7 +254,7 @@ void TResource::ChargeUsedAmount(double amount, TInstant now) {
     FreeBalance -= amount;
     Balance -= amount;
     AmountConsumed += amount;
-    History.Add(now, amount);
+    History.Add(now, amount); 
     Counters.Consumed->Add(static_cast<i64>(amount));
     if (Balance >= 0.0) {
         StopStarvation(now);
@@ -291,7 +291,7 @@ TDuration TResource::Charge(double amount, TInstant now) {
             LastAllocated = Max(now - QuoterServiceConfig.ScheduleTickSize * 2, timeToFullfill);
             Balance -= amount;
             AmountConsumed += amount;
-            History.Add(now, amount);
+            History.Add(now, amount); 
 
             if (FreeBalance > Balance)
                 FreeBalance = Balance;
@@ -306,7 +306,7 @@ TDuration TResource::Charge(double amount, TInstant now) {
             FreeBalance -= amount;
             Balance -= amount;
             AmountConsumed += amount;
-            History.Add(now, amount);
+            History.Add(now, amount); 
 
             Counters.Consumed->Add(static_cast<i64>(amount));
             StopStarvation(now);
@@ -518,7 +518,7 @@ TQuoterService::EInitLeafStatus TQuoterService::InitSystemLeaf(const TEvQuota::T
 
             quores.LastAllocated = TInstant::Zero();
             quores.AmountConsumed = 0.0;
-            // NOTE: do not change `History`: we dont need it for static rate
+            // NOTE: do not change `History`: we dont need it for static rate 
 
             quores.FreeBalance = 0.0;
             quores.TickRate = static_cast<double>(rate);
@@ -1171,9 +1171,9 @@ void TQuoterService::FillStats(TResource &quores) {
     auto &dq = StatsToPublish[quores.QuoterId];
     const double expectedRate = -1.0;
     const double cap = -1.0;
-    dq.emplace_back(quores.ResourceId, 0, quores.AmountConsumed, quores.History, quores.QueueSize, quores.QueueWeight, expectedRate, cap);
+    dq.emplace_back(quores.ResourceId, 0, quores.AmountConsumed, quores.History, quores.QueueSize, quores.QueueWeight, expectedRate, cap); 
     quores.AmountConsumed = 0.0;
-    quores.History.Clear();
+    quores.History.Clear(); 
 }
 
 void TQuoterService::FeedResource(TResource &quores) {
diff --git a/ydb/core/quoter/quoter_service_impl.h b/ydb/core/quoter/quoter_service_impl.h
index d27ea134e1..049a2aa3ca 100644
--- a/ydb/core/quoter/quoter_service_impl.h
+++ b/ydb/core/quoter/quoter_service_impl.h
@@ -146,7 +146,7 @@ struct TResource {
     // stats block
     TEvQuota::EStatUpdatePolicy StatUpdatePolicy = TEvQuota::EStatUpdatePolicy::Never;
     double AmountConsumed = 0.0; // consumed from last stats notification
-    TTimeSeriesMap<double> History; // consumption history from last stats notification
+    TTimeSeriesMap<double> History; // consumption history from last stats notification 
     TInstant StartStarvationTime = TInstant::Zero();
 
     struct {
@@ -175,9 +175,9 @@ struct TResource {
     }
 
     void ApplyQuotaChannel(const TEvQuota::TUpdateTick &tick);
-    TDuration Charge(double amount, TInstant now); // Zero - fullfiled, Max - not in current tick, Duration - in current tick, but not right now due to pace limit
+    TDuration Charge(double amount, TInstant now); // Zero - fullfiled, Max - not in current tick, Duration - in current tick, but not right now due to pace limit 
     TDuration Charge(TRequest& request, TResourceLeaf& leaf, TInstant now);
-    void ChargeUsedAmount(double amount, TInstant now);
+    void ChargeUsedAmount(double amount, TInstant now); 
 
     void MarkStartedCharging(TRequest& request, TResourceLeaf& leaf, TInstant now);
     void StartStarvation(TInstant now);
diff --git a/ydb/core/quoter/ut_helpers.cpp b/ydb/core/quoter/ut_helpers.cpp
index e57a073d74..0b06206989 100644
--- a/ydb/core/quoter/ut_helpers.cpp
+++ b/ydb/core/quoter/ut_helpers.cpp
@@ -344,7 +344,7 @@ bool TKesusProxyTestSetup::ConsumeResource(ui64 resId, double amount, TDuration
     const TInstant start = Runtime->GetCurrentTime();
     while (updatesGot < maxUpdates) {
         ++updatesGot;
-        SendProxyStats({TEvQuota::TProxyStat(resId, 1, 0, {}, 1, amount, 0, 0)});
+        SendProxyStats({TEvQuota::TProxyStat(resId, 1, 0, {}, 1, amount, 0, 0)}); 
         WaitEvent<TEvQuota::TEvProxyStats>(); // wait event to be processed
 
         afterStat();
@@ -374,7 +374,7 @@ bool TKesusProxyTestSetup::ConsumeResource(ui64 resId, double amount, TDuration
                     const TDuration timeToCharge = amount / updateTick.Rate * tickSize;
                     if (Runtime->GetCurrentTime() - start >= timeToCharge || amount <= updateTick.Rate) {
                         // spend and exit
-                        SendProxyStats({TEvQuota::TProxyStat(resId, 1, amount, {}, 0, 0, 0, 0)});
+                        SendProxyStats({TEvQuota::TProxyStat(resId, 1, amount, {}, 0, 0, 0, 0)}); 
                         return true;
                     }
                 }
diff --git a/ydb/core/scheme/scheme_tablecell.h b/ydb/core/scheme/scheme_tablecell.h
index bccfdca97d..fe1f1c52ec 100644
--- a/ydb/core/scheme/scheme_tablecell.h
+++ b/ydb/core/scheme/scheme_tablecell.h
@@ -58,10 +58,10 @@ public:
         }
     }
 
-    explicit TCell(const TRawTypeValue* v)
-        : TCell((const char*)v->Data(), v->Size())
-    {}
-
+    explicit TCell(const TRawTypeValue* v) 
+        : TCell((const char*)v->Data(), v->Size()) 
+    {} 
+ 
     explicit operator bool() const
     {
         return !IsNull();
@@ -102,7 +102,7 @@ public:
     static constexpr bool CanInline(ui32 sz) { return sz <= 8; }
     static constexpr size_t MaxInlineSize() { return 8; }
     const char* InlineData() const                  { Y_VERIFY_DEBUG(IsInline_); return IsNull_ ? nullptr : (char*)&IntVal; }
-    const char* Data() const                        { return IsNull_ ? nullptr : (IsInline_ ? (char*)&IntVal : Ptr); }
+    const char* Data() const                        { return IsNull_ ? nullptr : (IsInline_ ? (char*)&IntVal : Ptr); } 
 #else
     // Non-inlinable version for perf comparisons
     static bool CanInline(ui32)                     { return false; }
@@ -117,7 +117,7 @@ static_assert(sizeof(TCell) == 12, "TCell must be 12 bytes");
 using TCellsRef = TConstArrayRef<const TCell>;
 
 
-// NULL is considered equal to another NULL and less than non-NULL
+// NULL is considered equal to another NULL and less than non-NULL 
 // ATTENTION!!! return value is int!! (NOT just -1,0,1)
 inline int CompareTypedCells(const TCell& a, const TCell& b, NScheme::TTypeIdOrder type) {
     using TPair = std::pair<ui64, ui64>;
diff --git a/ydb/core/scheme_types/scheme_type_registry.cpp b/ydb/core/scheme_types/scheme_type_registry.cpp
index d737254361..1287c5cd64 100644
--- a/ydb/core/scheme_types/scheme_type_registry.cpp
+++ b/ydb/core/scheme_types/scheme_type_registry.cpp
@@ -6,7 +6,7 @@
 #include <util/generic/algorithm.h>
 
 
-#define REGISTER_TYPE(name, size, ...) RegisterType<T##name>();
+#define REGISTER_TYPE(name, size, ...) RegisterType<T##name>(); 
 
 namespace NKikimr {
 namespace NScheme {
diff --git a/ydb/core/scheme_types/scheme_types_defs.h b/ydb/core/scheme_types/scheme_types_defs.h
index bb06b09702..b7f789899e 100644
--- a/ydb/core/scheme_types/scheme_types_defs.h
+++ b/ydb/core/scheme_types/scheme_types_defs.h
@@ -44,9 +44,9 @@ public:
         return Name_;
     }
 
-    static constexpr ui32 GetFixedSize() {
-        return sizeof(T);
-    }
+    static constexpr ui32 GetFixedSize() { 
+        return sizeof(T); 
+    } 
     TTypeId GetTypeId() const override { return TypeId; }
     static TRawTypeValue ToRawTypeValue(const T& value) {
         return TRawTypeValue((void*)&value, sizeof(T), TypeId);
@@ -146,10 +146,10 @@ template <typename TDerived, TTypeId TypeId, const char* Name>
 class TStringBase : public TTypedType<::TString, TDerived, TypeId, Name>
 {
 public:
-    static constexpr ui32 GetFixedSize() {
-        return 0;
-    }
-
+    static constexpr ui32 GetFixedSize() { 
+        return 0; 
+    } 
+ 
     static TRawTypeValue ToRawTypeValue(const ::TString& value) {
         return TRawTypeValue((const void*)value.data(), value.size(), TypeId);
     }
@@ -192,10 +192,10 @@ template <ui32 TMaxSize, TTypeId TypeId, const char* Name>
 class TBoundedString : public TStringBase<TBoundedString<TMaxSize, TypeId, Name>, TypeId, Name> {
 public:
     static constexpr ui32 MaxSize = TMaxSize;
-    static constexpr ui32 GetFixedSize() {
-        return 0;
-    }
-
+    static constexpr ui32 GetFixedSize() { 
+        return 0; 
+    } 
+ 
     static TRawTypeValue ToRawTypeValue(const ::TString& value) {
         Y_VERIFY(value.size() <= MaxSize);
         return TRawTypeValue((const void*)value.data(), value.size(), TypeId);
diff --git a/ydb/core/tablet/node_tablet_monitor.cpp b/ydb/core/tablet/node_tablet_monitor.cpp
index 8bb34e7ea0..71032b73e3 100644
--- a/ydb/core/tablet/node_tablet_monitor.cpp
+++ b/ydb/core/tablet/node_tablet_monitor.cpp
@@ -54,59 +54,59 @@ public:
     void RenderResponse(const TActorContext &ctx) {
         Sort(NodesInfo->Nodes.begin(), NodesInfo->Nodes.end());
         TStringStream str;
-        HTML(str) {
-            H3() {
+        HTML(str) { 
+            H3() { 
                 str << "Nodes";
-            }
-            TABLE_SORTABLE_CLASS("table") {
-                TABLEHEAD() {
-                    TABLER() {
-                      TABLEH() {str << "NodeId";}
-                      TABLEH() {str << "Host";}
-                      TABLEH() {str << "Address";}
-                      TABLEH() {str << "Port";}
-                    }
-                }
-                TABLEBODY() {
+            } 
+            TABLE_SORTABLE_CLASS("table") { 
+                TABLEHEAD() { 
+                    TABLER() { 
+                      TABLEH() {str << "NodeId";} 
+                      TABLEH() {str << "Host";} 
+                      TABLEH() {str << "Address";} 
+                      TABLEH() {str << "Port";} 
+                    } 
+                } 
+                TABLEBODY() { 
                 for (const auto& ni : NodesInfo->Nodes) {
                     const TEvInterconnect::TNodeInfo &nodeInfo = ni;
-                    TABLER() {
-                        TABLED() {str << "<a href=\"nodetabmon?action=browse_tablets&node_id=" << nodeInfo.NodeId << "\">"
-                                << nodeInfo.NodeId << "</a>";}
-                        TABLED() {str << "<a href=\"nodetabmon?action=browse_tablets&node_id=" << nodeInfo.NodeId << "\">"
-                                << nodeInfo.Host << "</a>";}
-                        TABLED() {str << nodeInfo.Address;}
-                        TABLED() {str << nodeInfo.Port;}
-                    }
-                }
+                    TABLER() { 
+                        TABLED() {str << "<a href=\"nodetabmon?action=browse_tablets&node_id=" << nodeInfo.NodeId << "\">" 
+                                << nodeInfo.NodeId << "</a>";} 
+                        TABLED() {str << "<a href=\"nodetabmon?action=browse_tablets&node_id=" << nodeInfo.NodeId << "\">" 
+                                << nodeInfo.Host << "</a>";} 
+                        TABLED() {str << nodeInfo.Address;} 
+                        TABLED() {str << nodeInfo.Port;} 
+                    } 
                 }
-            }
-            HTML_TAG() {str << "<a href=\"nodetabmon?action=browse_tablets\">All tablets of the cluster</a>";}
-            H3() {
+                } 
+            } 
+            HTML_TAG() {str << "<a href=\"nodetabmon?action=browse_tablets\">All tablets of the cluster</a>";} 
+            H3() { 
                 str << "State Storages";
-            }
-            TABLE_SORTABLE_CLASS("table") {
-                TABLEHEAD() {
-                    TABLER() {
-                        TABLEH() {str << "StateStorageId";}
-                        TABLEH() {str << "Domain";}
-                    }
-                }
-                TABLEBODY() {
+            } 
+            TABLE_SORTABLE_CLASS("table") { 
+                TABLEHEAD() { 
+                    TABLER() { 
+                        TABLEH() {str << "StateStorageId";} 
+                        TABLEH() {str << "Domain";} 
+                    } 
+                } 
+                TABLEBODY() { 
 
                     for (const auto& ni : AppData(ctx)->DomainsInfo->Domains) {
                         const TDomainsInfo::TDomain &domain = *ni.second;
                         for (const auto ssId : domain.StateStorageGroups) {
-                            TABLER() {
-                                TABLED() {str << "<a href=\"nodetabmon?action=browse_ss&ss_id=" << ssId << "\">"
-                                        << ssId << "</a>";}
-                                TABLED() {str << domain.Name;}
+                            TABLER() { 
+                                TABLED() {str << "<a href=\"nodetabmon?action=browse_ss&ss_id=" << ssId << "\">" 
+                                        << ssId << "</a>";} 
+                                TABLED() {str << domain.Name;} 
                             }
-                        }
+                        } 
                     }
-                }
-            }
-        }
+                } 
+            } 
+        } 
         ctx.Send(Sender, new NMon::TEvHttpInfoRes(str.Str()));
         Die(ctx);
     }
@@ -254,7 +254,7 @@ public:
             }
         }
         TStringStream str;
-        HTML(str) {
+        HTML(str) { 
             Renderer->RenderPageHeader(str);
             for(ui32 cls = 0; cls < StateClassifier->GetMaxTabletStateClass(); cls++) {
                 auto filter = StateClassifier->GetTabletStateClassFilter(cls);
@@ -264,7 +264,7 @@ public:
                 Renderer->RenderTabletList(str, listName, tablets, {FilterNodeId, filterNodeHost});
             }
             Renderer->RenderPageFooter(str);
-        }
+        } 
         ctx.Send(Sender, new NMon::TEvHttpInfoRes(str.Str()));
         Die(ctx);
     }
@@ -338,53 +338,53 @@ public:
             }
         }
         TStringStream str;
-        HTML(str) {
-            H3() {
+        HTML(str) { 
+            H3() { 
                 str << "Tablets of StateStorage " << StateStorageId;
-            }
-            TABLE_CLASS("table table-bordered") {
-                TABLEHEAD() {
-                         HTML_TAG() {str << "<tr style='background-color:#eee'>";
-                         TABLEH() {str << "<span data-toggle='tooltip' title='Tablet Identifier'>TabletID</span>";}
-                         TABLEH() {str << "<span data-toggle='tooltip' title='Node from which SS Replica has responded'>Replica Node ID / Hostname</span>";}
-                         TABLEH() {str << "<span data-toggle='tooltip' title='Tablet Generation'>Gen</span>";}
-                         TABLEH() {str << "<span data-toggle='tooltip' title='Amount of time tablet has been locked in SS (seconds)'>Locked For</span>";}
-                         TABLEH() {str << "<span data-toggle='tooltip' title='Node where tablet has been started'>Tablet Node ID / Hostname</span>";}
-                         TABLEH() {str << "<span data-toggle='tooltip' title='Is user part (actor) of the tablet started?'>Active</span>";}
+            } 
+            TABLE_CLASS("table table-bordered") { 
+                TABLEHEAD() { 
+                         HTML_TAG() {str << "<tr style='background-color:#eee'>"; 
+                         TABLEH() {str << "<span data-toggle='tooltip' title='Tablet Identifier'>TabletID</span>";} 
+                         TABLEH() {str << "<span data-toggle='tooltip' title='Node from which SS Replica has responded'>Replica Node ID / Hostname</span>";} 
+                         TABLEH() {str << "<span data-toggle='tooltip' title='Tablet Generation'>Gen</span>";} 
+                         TABLEH() {str << "<span data-toggle='tooltip' title='Amount of time tablet has been locked in SS (seconds)'>Locked For</span>";} 
+                         TABLEH() {str << "<span data-toggle='tooltip' title='Node where tablet has been started'>Tablet Node ID / Hostname</span>";} 
+                         TABLEH() {str << "<span data-toggle='tooltip' title='Is user part (actor) of the tablet started?'>Active</span>";} 
                          str << "</tr>";
-                    }
-                }
-                TABLEBODY() {
+                    } 
+                } 
+                TABLEBODY() { 
                          for (auto iit = indexByTabletId.begin(); iit != indexByTabletId.end(); ++iit) {
                              for (auto iptr = iit->second.begin(); iptr != iit->second.end(); ++iptr) {
                                  const NKikimrStateStorage::TEvInfo &ei = *iptr->second;
                                  ui32 replicaNodeId = iptr->first;
-                                 TABLER() {
+                                 TABLER() { 
                                      if (iptr == iit->second.begin()) {
-                                         HTML_TAG() {str << "<td rowspan='" << iit->second.size() << "'>"
-                                                   << "<a href='tablets?TabletID=" << ei.GetTabletID() << "'>" << ei.GetTabletID() << "</a></td>";}
+                                         HTML_TAG() {str << "<td rowspan='" << iit->second.size() << "'>" 
+                                                   << "<a href='tablets?TabletID=" << ei.GetTabletID() << "'>" << ei.GetTabletID() << "</a></td>";} 
                                      }
-                                     TABLED() {
+                                     TABLED() { 
                                          str << replicaNodeId;
                                          auto eq_it = EqualRange(NodesInfo->Nodes.begin(), NodesInfo->Nodes.end(), replicaNodeId);
                                          if (eq_it.first != NodesInfo->Nodes.end() && eq_it.first->Host) str << " / " << eq_it.first->Host;
-                                     }
-                                     TABLED() {str << ei.GetCurrentGeneration();}
-                                     TABLED() {if (ei.HasLockedFor()) str << TDuration::MicroSeconds(ei.GetLockedFor()).Seconds();}
-                                     TABLED() {
+                                     } 
+                                     TABLED() {str << ei.GetCurrentGeneration();} 
+                                     TABLED() {if (ei.HasLockedFor()) str << TDuration::MicroSeconds(ei.GetLockedFor()).Seconds();} 
+                                     TABLED() { 
                                          ui32 nodeId = ActorIdFromProto(ei.GetCurrentLeader()).NodeId();
                                          str << nodeId;
                                          auto eq_it = EqualRange(NodesInfo->Nodes.begin(), NodesInfo->Nodes.end(), nodeId);
                                          if (eq_it.first != NodesInfo->Nodes.end() && eq_it.first->Host) str << " / " << eq_it.first->Host;
-                                     }
+                                     } 
                                      TABLED() {if (ActorIdFromProto(ei.GetCurrentLeaderTablet())) str << "<span class='glyphicon glyphicon-ok' title='User Actor present'/>";}
-                                 }
+                                 } 
                              }
                          }
-                }
-            }
-            HTML_TAG() {str << "<script>$(document).ready(function(){$('[data-toggle=\"tooltip\"]').tooltip();}</script>";}
-        }
+                } 
+            } 
+            HTML_TAG() {str << "<script>$(document).ready(function(){$('[data-toggle=\"tooltip\"]').tooltip();}</script>";} 
+        } 
         ctx.Send(Sender, new NMon::TEvHttpInfoRes(str.Str()));
         Die(ctx);
     }
diff --git a/ydb/core/tablet/tablet_counters.cpp b/ydb/core/tablet/tablet_counters.cpp
index b2ef0d4ad7..64903d31ce 100644
--- a/ydb/core/tablet/tablet_counters.cpp
+++ b/ydb/core/tablet/tablet_counters.cpp
@@ -64,53 +64,53 @@ TTabletCountersBase::operator = (const TTabletCountersBase& rp) {
 }
 
 void TTabletSimpleCounterBase::OutputHtml(IOutputStream &os, const char* name) const {
-    HTML(os) {PRE() {os << name << ": " << Value;}}
+    HTML(os) {PRE() {os << name << ": " << Value;}} 
 }
 
 void TTabletPercentileCounter::OutputHtml(IOutputStream &os, const char* name) const {
-    HTML(os) {
-        DIV_CLASS("row") {
-            DIV_CLASS("col-md-12") {H4() {os << name;}}
-        }
+    HTML(os) { 
+        DIV_CLASS("row") { 
+            DIV_CLASS("col-md-12") {H4() {os << name;}} 
+        } 
 
-        DIV_CLASS("row") {
+        DIV_CLASS("row") { 
             for (ui32 i = 0; i < RangeCount; ++i) {
-                DIV_CLASS("col-md-3") {
-                    PRE() {
+                DIV_CLASS("col-md-3") { 
+                    PRE() { 
                         os << Ranges[i].RangeName << ": " << Values[i];
-                    }
-                }
+                    } 
+                } 
             }
-        }
-    }
+        } 
+    } 
 }
 
 void TTabletCountersBase::OutputHtml(IOutputStream &os) const {
-    HTML(os) {
-        DIV_CLASS("row") {
-            DIV_CLASS("col-md-12") {OutputHtml(os, "Simple", SimpleCountersMetaInfo, "col-md-3", SimpleCounters);}
-            DIV_CLASS("col-md-12") {OutputHtml(os, "Cumulative", CumulativeCountersMetaInfo, "col-md-3", CumulativeCounters);}
-            DIV_CLASS("col-md-12") {OutputHtml(os, "Percentile", PercentileCountersMetaInfo, "col-md-12", PercentileCounters);}
-
-        }
-    }
+    HTML(os) { 
+        DIV_CLASS("row") { 
+            DIV_CLASS("col-md-12") {OutputHtml(os, "Simple", SimpleCountersMetaInfo, "col-md-3", SimpleCounters);} 
+            DIV_CLASS("col-md-12") {OutputHtml(os, "Cumulative", CumulativeCountersMetaInfo, "col-md-3", CumulativeCounters);} 
+            DIV_CLASS("col-md-12") {OutputHtml(os, "Percentile", PercentileCountersMetaInfo, "col-md-12", PercentileCounters);} 
+
+        } 
+    } 
 }
 
 ////////////////////////////////////////////
 template<typename T>
 void TTabletCountersBase::OutputHtml(IOutputStream &os, const char* sectionName, const char* const* counterNames, const char* counterClass, const TCountersArray<T>& counters) const {
-    HTML(os) {
-        DIV_CLASS("row") {
-            DIV_CLASS("col-md-12") {H3() {os << sectionName; }}
-        }
-        DIV_CLASS("row") {
+    HTML(os) { 
+        DIV_CLASS("row") { 
+            DIV_CLASS("col-md-12") {H3() {os << sectionName; }} 
+        } 
+        DIV_CLASS("row") { 
             for (ui32 i = 0, e = counters.Size(); i < e; ++i) {
                 if (counterNames[i]) {
                     DIV_CLASS(counterClass) {counters[i].OutputHtml(os, counterNames[i]);}
                 }
             }
-        }
-    }
+        } 
+    } 
 }
 
 void TTabletCountersBase::OutputProto(NKikimrTabletBase::TTabletCountersBase& op) const {
@@ -179,20 +179,20 @@ TTabletLabeledCountersBase::operator = (const TTabletLabeledCountersBase& rp) {
 }
 
 void TTabletLabeledCountersBase::OutputHtml(IOutputStream &os) const {
-    HTML(os) {
-        DIV_CLASS("row") {
-            DIV_CLASS("col-md-12") {H3() {os << Group; }}
+    HTML(os) { 
+        DIV_CLASS("row") { 
+            DIV_CLASS("col-md-12") {H3() {os << Group; }} 
 
-        }
-        DIV_CLASS("row") {
+        } 
+        DIV_CLASS("row") { 
             for (ui32 i = 0, e = Counters.Size(); i < e; ++i) {
                 if (MetaInfo[i]) {
                     DIV_CLASS("col-md-3") {Counters[i].OutputHtml(os, MetaInfo[i]);}
                     DIV_CLASS("col-md-3") {Ids[i].OutputHtml(os, "id");}
                 }
             }
-        }
-    }
+        } 
+    } 
 }
 
 void TTabletLabeledCountersBase::AggregateWith(const TTabletLabeledCountersBase& rp) {
diff --git a/ydb/core/tablet/tablet_counters.h b/ydb/core/tablet/tablet_counters.h
index a8cc27e9ed..5b43882e71 100644
--- a/ydb/core/tablet/tablet_counters.h
+++ b/ydb/core/tablet/tablet_counters.h
@@ -1,7 +1,7 @@
 #pragma once
 #include "defs.h"
-#include <util/generic/singleton.h>
-#include <util/generic/vector.h>
+#include <util/generic/singleton.h> 
+#include <util/generic/vector.h> 
 #include <library/cpp/deprecated/enum_codegen/enum_codegen.h>
 #include <library/cpp/monlib/service/pages/templates.h>
 #include <google/protobuf/descriptor.pb.h>
@@ -236,7 +236,7 @@ private:
         }
     }
 
-public:
+public: 
     void Initialize(ui32 rangeCount, const TRangeDef* ranges, bool integral) {
         Y_VERIFY_DEBUG(!Ranges);
         Y_VERIFY_DEBUG(!Values);
@@ -258,7 +258,7 @@ public:
         }
     }
 
-private:
+private: 
     //
     ui32 FindSlot(ui64 what) const {
         return Max<ssize_t>(0, std::upper_bound(Ranges, Ranges + RangeCount, what) - Ranges - 1);
diff --git a/ydb/core/tablet/tablet_counters_protobuf.h b/ydb/core/tablet/tablet_counters_protobuf.h
index 11d3a334de..640c1ec565 100644
--- a/ydb/core/tablet/tablet_counters_protobuf.h
+++ b/ydb/core/tablet/tablet_counters_protobuf.h
@@ -1,38 +1,38 @@
-#pragma once
-
-#include "tablet_counters.h"
+#pragma once 
+ 
+#include "tablet_counters.h" 
 #include "tablet_counters_aggregator.h"
 #include <ydb/core/tablet_flat/defs.h>
 #include <util/string/vector.h>
 #include <util/string/split.h>
-
-namespace NKikimr {
-
-namespace NAux {
-
+ 
+namespace NKikimr { 
+ 
+namespace NAux { 
+ 
 // Class that incapsulates protobuf options parsing for app counters
 template <const NProtoBuf::EnumDescriptor* AppCountersDesc()>
 struct TAppParsedOpts {
-public:
-    const size_t Size;
+public: 
+    const size_t Size; 
 protected:
     TVector<TString> NamesStrings;
     TVector<const char*> Names;
     TVector<TVector<TTabletPercentileCounter::TRangeDef>> Ranges;
     TVector<TTabletPercentileCounter::TRangeDef> AppGlobalRanges;
     TVector<bool> Integral;
-public:
+public: 
     explicit TAppParsedOpts(const size_t diff = 0)
         : Size(AppCountersDesc()->value_count() + diff)
-    {
+    { 
         const NProtoBuf::EnumDescriptor* appDesc = AppCountersDesc();
-        NamesStrings.reserve(Size);
-        Names.reserve(Size);
-        Ranges.reserve(Size);
-
-        // Parse protobuf options for enum values for app counters
-        for (int i = 0; i < appDesc->value_count(); i++) {
-            const NProtoBuf::EnumValueDescriptor* vdesc = appDesc->value(i);
+        NamesStrings.reserve(Size); 
+        Names.reserve(Size); 
+        Ranges.reserve(Size); 
+ 
+        // Parse protobuf options for enum values for app counters 
+        for (int i = 0; i < appDesc->value_count(); i++) { 
+            const NProtoBuf::EnumValueDescriptor* vdesc = appDesc->value(i); 
             Y_VERIFY(vdesc->number() == vdesc->index(), "counter '%s' number (%d) != index (%d)",
                    vdesc->full_name().c_str(), vdesc->number(), vdesc->index());
             if (!vdesc->options().HasExtension(CounterOpts)) {
@@ -41,7 +41,7 @@ public:
                 Integral.push_back(false);
                 continue;
             }
-            const TCounterOptions& co = vdesc->options().GetExtension(CounterOpts);
+            const TCounterOptions& co = vdesc->options().GetExtension(CounterOpts); 
             TString cntName = co.GetName();
             Y_VERIFY(!cntName.empty(), "counter '%s' number (%d) cannot have an empty counter name",
                     vdesc->full_name().c_str(), vdesc->number());
@@ -52,10 +52,10 @@ public:
                 nameString = GetFilePrefix(appDesc->file()) + cntName;
             }
             NamesStrings.emplace_back(nameString);
-            Ranges.push_back(ParseRanges(co));
+            Ranges.push_back(ParseRanges(co)); 
             Integral.push_back(co.GetIntegral());
-        }
-
+        } 
+ 
         // Make plain strings out of Strokas to fullfil interface of TTabletCountersBase
         for (const TString& s : NamesStrings) {
             Names.push_back(s.empty() ? nullptr : s.c_str());
@@ -136,19 +136,19 @@ public:
         const NProtoBuf::EnumDescriptor* txDesc = TxCountersDesc();
         const NProtoBuf::EnumDescriptor* typesDesc = TxTypesDesc();
 
-        // Parse protobuf options for enum values for tx counters
-        // Create a group of tx counters for each tx type
-        for (int j = 0; j < typesDesc->value_count(); j++) {
-            const NProtoBuf::EnumValueDescriptor* tt = typesDesc->value(j);
-            TTxType txType = tt->number();
+        // Parse protobuf options for enum values for tx counters 
+        // Create a group of tx counters for each tx type 
+        for (int j = 0; j < typesDesc->value_count(); j++) { 
+            const NProtoBuf::EnumValueDescriptor* tt = typesDesc->value(j); 
+            TTxType txType = tt->number(); 
             Y_VERIFY((int)txType == tt->index(), "tx type '%s' number (%d) != index (%d)",
                    tt->full_name().c_str(), txType, tt->index());
             Y_VERIFY(tt->options().HasExtension(TxTypeOpts), "tx type '%s' number (%d) is missing TxTypeOpts",
                     tt->full_name().c_str(), txType);
-            const TTxTypeOptions& tto = tt->options().GetExtension(TxTypeOpts);
+            const TTxTypeOptions& tto = tt->options().GetExtension(TxTypeOpts); 
             TString txPrefix = tto.GetName() + "/";
-            for (int i = 0; i < txDesc->value_count(); i++) {
-                const NProtoBuf::EnumValueDescriptor* v = txDesc->value(i);
+            for (int i = 0; i < txDesc->value_count(); i++) { 
+                const NProtoBuf::EnumValueDescriptor* v = txDesc->value(i); 
                 Y_VERIFY(v->number() == v->index(), "counter '%s' number (%d) != index (%d)",
                        v->full_name().c_str(), v->number(), v->index());
                 if (!v->options().HasExtension(CounterOpts)) {
@@ -157,54 +157,54 @@ public:
                     Integral.push_back(false);
                     continue;
                 }
-                const TCounterOptions& co = v->options().GetExtension(CounterOpts);
+                const TCounterOptions& co = v->options().GetExtension(CounterOpts); 
                 Y_VERIFY(!co.GetName().empty(), "counter '%s' number (%d) has an empty name",
                         v->full_name().c_str(), v->number());
                 TVector<TTabletPercentileCounter::TRangeDef> ranges = TBase::ParseRanges(co);
                 NamesStrings.push_back(TBase::GetFilePrefix(typesDesc->file()) + txPrefix + co.GetName());
                 Ranges.push_back(TBase::ParseRanges(co));
                 Integral.push_back(co.GetIntegral());
-            }
-        }
-        // Make plain strings out of Strokas to fullfil interface of TTabletCountersBase
+            } 
+        } 
+        // Make plain strings out of Strokas to fullfil interface of TTabletCountersBase 
         for (size_t i = TxOffset; i < Size; ++i) {
             const TString& s = NamesStrings[i];
             Names.push_back(s.empty() ? nullptr : s.c_str());
-        }
-
-        // Parse protobuf options for enums itself
+        } 
+ 
+        // Parse protobuf options for enums itself 
         TxGlobalRanges = TBase::ParseRanges(txDesc->options().GetExtension(GlobalCounterOpts));
-    }
-
+    } 
+ 
     virtual ~TParsedOpts()
     {}
-
+ 
     virtual const TVector<TTabletPercentileCounter::TRangeDef>& GetRanges(size_t idx) const
-    {
+    { 
         Y_VERIFY(idx < Size);
-        if (!Ranges[idx].empty()) {
-            return Ranges[idx];
-        } else {
-            if (idx < TxOffset) {
+        if (!Ranges[idx].empty()) { 
+            return Ranges[idx]; 
+        } else { 
+            if (idx < TxOffset) { 
                 if (!AppGlobalRanges.empty())
-                    return AppGlobalRanges;
+                    return AppGlobalRanges; 
             } else if (!TxGlobalRanges.empty()) {
-                return TxGlobalRanges;
-            }
-        }
-        if (idx < TxOffset) {
+                return TxGlobalRanges; 
+            } 
+        } 
+        if (idx < TxOffset) { 
             Y_FAIL("Ranges for percentile counter '%s' are not defined", AppCountersDesc()->value(idx)->full_name().c_str());
-        } else {
-            size_t idx2 = (idx - TxOffset) % TxCountersSize;
+        } else { 
+            size_t idx2 = (idx - TxOffset) % TxCountersSize; 
             Y_FAIL("Ranges for percentile counter '%s' are not defined", TxCountersDesc()->value(idx2)->full_name().c_str());
-        }
-    }
+        } 
+    } 
 };
-
+ 
 
 template <class T1, class T2>
 struct TParsedOptsPair {
-private:
+private: 
     T1 Opts1;
     T2 Opts2;
     TVector<const char*> Names;
@@ -219,16 +219,16 @@ public:
         Names.reserve(Size);
         for (size_t i = 0; i < Opts1.Size; ++i) {
             Names.push_back(Opts1.GetNames()[i]);
-        }
+        } 
         for (size_t i = 0; i < Opts2.Size; ++i) {
             Names.push_back(Opts2.GetNames()[i]);
         }
-    }
-
+    } 
+ 
     const char* const * GetNames() const
-    {
+    { 
         return Names.begin();
-    }
+    } 
 
     const TVector<TTabletPercentileCounter::TRangeDef>& GetRanges(size_t idx) const
     {
@@ -237,22 +237,22 @@ public:
             return Opts1.GetRanges(idx);
         return Opts2.GetRanges(idx - Opts1.Size);
     }
-};
-
-template <const NProtoBuf::EnumDescriptor* AppCountersDesc(),
-          const NProtoBuf::EnumDescriptor* TxCountersDesc(),
-          const NProtoBuf::EnumDescriptor* TxTypesDesc()>
-TParsedOpts<AppCountersDesc, TxCountersDesc, TxTypesDesc>* GetOpts() {
-    // Use singleton to avoid thread-safety issues and parse enum descriptor once
-    return Singleton<TParsedOpts<AppCountersDesc, TxCountersDesc, TxTypesDesc>>();
-}
+}; 
+ 
+template <const NProtoBuf::EnumDescriptor* AppCountersDesc(), 
+          const NProtoBuf::EnumDescriptor* TxCountersDesc(), 
+          const NProtoBuf::EnumDescriptor* TxTypesDesc()> 
+TParsedOpts<AppCountersDesc, TxCountersDesc, TxTypesDesc>* GetOpts() { 
+    // Use singleton to avoid thread-safety issues and parse enum descriptor once 
+    return Singleton<TParsedOpts<AppCountersDesc, TxCountersDesc, TxTypesDesc>>(); 
+} 
 
 template <const NProtoBuf::EnumDescriptor* AppCountersDesc()>
 TAppParsedOpts<AppCountersDesc>* GetAppOpts() {
     // Use singleton to avoid thread-safety issues and parse enum descriptor once
     return Singleton<TAppParsedOpts<AppCountersDesc>>();
 }
-
+ 
 template <class T1, class T2>
 TParsedOptsPair<T1,T2>* GetOptsPair() {
     // Use singleton to avoid thread-safety issues and parse enum descriptor once
@@ -357,93 +357,93 @@ TLabeledCounterParsedOpts<LabeledCountersDesc>* GetLabeledCounterOpts() {
     return Singleton<TLabeledCounterParsedOpts<LabeledCountersDesc>>();
 }
 
-} // NAux
-
-// Base class for all tablet counters classes with tx type counters
-// (Needed just to distinguish them in executor code using dynamic_cast)
-class TTabletCountersWithTxTypes : public TTabletCountersBase {
-protected:
-    enum ECounterType {
-        CT_SIMPLE,
-        CT_CUMULATIVE,
-        CT_PERCENTILE,
-        CT_MAX
-    };
-    size_t Size[CT_MAX];
-    size_t TxOffset[CT_MAX];
-    size_t TxCountersSize[CT_MAX];
-public:
-    TTabletCountersWithTxTypes() {}
-
-    template <class... TArgs>
-    explicit TTabletCountersWithTxTypes(TArgs... args)
-        : TTabletCountersBase(args...)
-    {}
-
-    TTabletSimpleCounter& TxSimple(TTxType txType, ui32 txCounter) {
-        return Simple()[IndexOf<CT_SIMPLE>(txType, txCounter)];
-    }
-
-    const TTabletSimpleCounter& TxSimple(TTxType txType, ui32 txCounter) const {
-        return Simple()[IndexOf<CT_SIMPLE>(txType, txCounter)];
-    }
-
-    TTabletCumulativeCounter& TxCumulative(TTxType txType, ui32 txCounter) {
-        return Cumulative()[IndexOf<CT_CUMULATIVE>(txType, txCounter)];
-    }
-
-    const TTabletCumulativeCounter& TxCumulative(TTxType txType, ui32 txCounter) const {
-        return Cumulative()[IndexOf<CT_CUMULATIVE>(txType, txCounter)];
-    }
-
-    TTabletPercentileCounter& TxPercentile(TTxType txType, ui32 txCounter) {
-        return Percentile()[IndexOf<CT_PERCENTILE>(txType, txCounter)];
-    }
-
-    const TTabletPercentileCounter& TxPercentile(TTxType txType, ui32 txCounter) const {
-        return Percentile()[IndexOf<CT_PERCENTILE>(txType, txCounter)];
-    }
-protected:
-    template <ECounterType counterType>
-    size_t IndexOf(TTxType txType, ui32 txCounter) const {
-        // Note that enum values are used only inside a process, not on disc/messages
-        // so there are no backward compatibility issues
+} // NAux 
+ 
+// Base class for all tablet counters classes with tx type counters 
+// (Needed just to distinguish them in executor code using dynamic_cast) 
+class TTabletCountersWithTxTypes : public TTabletCountersBase { 
+protected: 
+    enum ECounterType { 
+        CT_SIMPLE, 
+        CT_CUMULATIVE, 
+        CT_PERCENTILE, 
+        CT_MAX 
+    }; 
+    size_t Size[CT_MAX]; 
+    size_t TxOffset[CT_MAX]; 
+    size_t TxCountersSize[CT_MAX]; 
+public: 
+    TTabletCountersWithTxTypes() {} 
+ 
+    template <class... TArgs> 
+    explicit TTabletCountersWithTxTypes(TArgs... args) 
+        : TTabletCountersBase(args...) 
+    {} 
+ 
+    TTabletSimpleCounter& TxSimple(TTxType txType, ui32 txCounter) { 
+        return Simple()[IndexOf<CT_SIMPLE>(txType, txCounter)]; 
+    } 
+ 
+    const TTabletSimpleCounter& TxSimple(TTxType txType, ui32 txCounter) const { 
+        return Simple()[IndexOf<CT_SIMPLE>(txType, txCounter)]; 
+    } 
+ 
+    TTabletCumulativeCounter& TxCumulative(TTxType txType, ui32 txCounter) { 
+        return Cumulative()[IndexOf<CT_CUMULATIVE>(txType, txCounter)]; 
+    } 
+ 
+    const TTabletCumulativeCounter& TxCumulative(TTxType txType, ui32 txCounter) const { 
+        return Cumulative()[IndexOf<CT_CUMULATIVE>(txType, txCounter)]; 
+    } 
+ 
+    TTabletPercentileCounter& TxPercentile(TTxType txType, ui32 txCounter) { 
+        return Percentile()[IndexOf<CT_PERCENTILE>(txType, txCounter)]; 
+    } 
+ 
+    const TTabletPercentileCounter& TxPercentile(TTxType txType, ui32 txCounter) const { 
+        return Percentile()[IndexOf<CT_PERCENTILE>(txType, txCounter)]; 
+    } 
+protected: 
+    template <ECounterType counterType> 
+    size_t IndexOf(TTxType txType, ui32 txCounter) const { 
+        // Note that enum values are used only inside a process, not on disc/messages 
+        // so there are no backward compatibility issues 
         Y_VERIFY(txCounter < TxCountersSize[counterType]);
-        size_t ret = TxOffset[counterType] + txType * TxCountersSize[counterType] + txCounter;
+        size_t ret = TxOffset[counterType] + txType * TxCountersSize[counterType] + txCounter; 
         Y_VERIFY(ret < Size[counterType]);
-        return ret;
-    }
-};
-
-// Tablet counters with app counters (SimpleDesc, CumulativeDesc, PercentileDesc) and counters per each tx type (TxTypeDesc)
-template <const NProtoBuf::EnumDescriptor* SimpleDesc(),
-          const NProtoBuf::EnumDescriptor* CumulativeDesc(),
-          const NProtoBuf::EnumDescriptor* PercentileDesc(),
-          const NProtoBuf::EnumDescriptor* TxTypeDesc()>
-class TProtobufTabletCounters : public TTabletCountersWithTxTypes {
+        return ret; 
+    } 
+}; 
+ 
+// Tablet counters with app counters (SimpleDesc, CumulativeDesc, PercentileDesc) and counters per each tx type (TxTypeDesc) 
+template <const NProtoBuf::EnumDescriptor* SimpleDesc(), 
+          const NProtoBuf::EnumDescriptor* CumulativeDesc(), 
+          const NProtoBuf::EnumDescriptor* PercentileDesc(), 
+          const NProtoBuf::EnumDescriptor* TxTypeDesc()> 
+class TProtobufTabletCounters : public TTabletCountersWithTxTypes { 
 public:
     typedef NAux::TParsedOpts<SimpleDesc, ETxTypeSimpleCounters_descriptor, TxTypeDesc> TSimpleOpts;
     typedef NAux::TParsedOpts<CumulativeDesc, ETxTypeCumulativeCounters_descriptor, TxTypeDesc> TCumulativeOpts;
     typedef NAux::TParsedOpts<PercentileDesc, ETxTypePercentileCounters_descriptor, TxTypeDesc> TPercentileOpts;
 
     static TSimpleOpts* SimpleOpts() {
-        return NAux::GetOpts<SimpleDesc, ETxTypeSimpleCounters_descriptor, TxTypeDesc>();
-    }
-
+        return NAux::GetOpts<SimpleDesc, ETxTypeSimpleCounters_descriptor, TxTypeDesc>(); 
+    } 
+ 
     static TCumulativeOpts* CumulativeOpts() {
-        return NAux::GetOpts<CumulativeDesc, ETxTypeCumulativeCounters_descriptor, TxTypeDesc>();
-    }
-
+        return NAux::GetOpts<CumulativeDesc, ETxTypeCumulativeCounters_descriptor, TxTypeDesc>(); 
+    } 
+ 
     static TPercentileOpts* PercentileOpts() {
-        return NAux::GetOpts<PercentileDesc, ETxTypePercentileCounters_descriptor, TxTypeDesc>();
-    }
-
-    TProtobufTabletCounters()
-        : TTabletCountersWithTxTypes(
-              SimpleOpts()->Size,       CumulativeOpts()->Size,       PercentileOpts()->Size,
-              SimpleOpts()->GetNames(), CumulativeOpts()->GetNames(), PercentileOpts()->GetNames()
-        )
-    {
+        return NAux::GetOpts<PercentileDesc, ETxTypePercentileCounters_descriptor, TxTypeDesc>(); 
+    } 
+
+    TProtobufTabletCounters() 
+        : TTabletCountersWithTxTypes( 
+              SimpleOpts()->Size,       CumulativeOpts()->Size,       PercentileOpts()->Size, 
+              SimpleOpts()->GetNames(), CumulativeOpts()->GetNames(), PercentileOpts()->GetNames() 
+        ) 
+    { 
         FillOffsets();
         InitCounters();
     }
@@ -459,32 +459,32 @@ public:
 private:
     void FillOffsets()
     {
-        // Initialize stuff for counter addressing
-        Size[CT_SIMPLE] = SimpleOpts()->Size;
-        TxOffset[CT_SIMPLE] = SimpleOpts()->TxOffset;
-        TxCountersSize[CT_SIMPLE] = SimpleOpts()->TxCountersSize;
-        Size[CT_CUMULATIVE] = CumulativeOpts()->Size;
-        TxOffset[CT_CUMULATIVE] = CumulativeOpts()->TxOffset;
-        TxCountersSize[CT_CUMULATIVE] = CumulativeOpts()->TxCountersSize;
-        Size[CT_PERCENTILE] = PercentileOpts()->Size;
-        TxOffset[CT_PERCENTILE] = PercentileOpts()->TxOffset;
-        TxCountersSize[CT_PERCENTILE] = PercentileOpts()->TxCountersSize;
-    }
-
+        // Initialize stuff for counter addressing 
+        Size[CT_SIMPLE] = SimpleOpts()->Size; 
+        TxOffset[CT_SIMPLE] = SimpleOpts()->TxOffset; 
+        TxCountersSize[CT_SIMPLE] = SimpleOpts()->TxCountersSize; 
+        Size[CT_CUMULATIVE] = CumulativeOpts()->Size; 
+        TxOffset[CT_CUMULATIVE] = CumulativeOpts()->TxOffset; 
+        TxCountersSize[CT_CUMULATIVE] = CumulativeOpts()->TxCountersSize; 
+        Size[CT_PERCENTILE] = PercentileOpts()->Size; 
+        TxOffset[CT_PERCENTILE] = PercentileOpts()->TxOffset; 
+        TxCountersSize[CT_PERCENTILE] = PercentileOpts()->TxCountersSize; 
+    }
+ 
     void InitCounters()
     {
-        // Initialize percentile counters
-        const auto* opts = PercentileOpts();
-        for (size_t i = 0; i < opts->Size; i++) {
+        // Initialize percentile counters 
+        const auto* opts = PercentileOpts(); 
+        for (size_t i = 0; i < opts->Size; i++) { 
             if (!opts->GetNames()[i]) {
                 continue;
             }
-            const auto& vec = opts->GetRanges(i);
+            const auto& vec = opts->GetRanges(i); 
             Percentile()[i].Initialize(vec.size(), vec.begin(), opts->GetIntegral(i));
-        }
-    }
-};
-
+        } 
+    } 
+}; 
+ 
 // Tablet counters with app counters (SimpleDesc, CumulativeDesc, PercentileDesc) only
 template <const NProtoBuf::EnumDescriptor* SimpleDesc(),
           const NProtoBuf::EnumDescriptor* CumulativeDesc(),
@@ -638,4 +638,4 @@ private:
 
 
 
-} // end of NKikimr
+} // end of NKikimr 
diff --git a/ydb/core/tablet/tablet_list_renderer.cpp b/ydb/core/tablet/tablet_list_renderer.cpp
index ad36f12a29..874de85e9c 100644
--- a/ydb/core/tablet/tablet_list_renderer.cpp
+++ b/ydb/core/tablet/tablet_list_renderer.cpp
@@ -62,14 +62,14 @@ void TTabletListRenderer::RenderHeader(TStringStream& str,
 {
     Y_UNUSED(tabletsToRender);
     IOutputStream &__stream(str);
-    H3() {
+    H3() { 
         str << listName;
         if (filterInfo.FilterNodeId != 0) {
             str << " of Node " << filterInfo.FilterNodeId;
             if (!filterInfo.FilterNodeHost.empty())
                 str << " (" << filterInfo.FilterNodeHost << ")";
         }
-    }
+    } 
 }
 
 void TTabletListRenderer::RenderTableHeader(TStringStream& str,
@@ -80,22 +80,22 @@ void TTabletListRenderer::RenderTableHeader(TStringStream& str,
     Y_UNUSED(listName);
     Y_UNUSED(tabletsToRender);
     IOutputStream &__stream(str);
-    TABLEHEAD() {
-        TABLER() {
+    TABLEHEAD() { 
+        TABLER() { 
             if (filterInfo.FilterNodeId == 0) {
-                TABLEH() {str << "<span data-toggle='tooltip' title='NodeId'>#</span>";}
-                TABLEH() {str << "NodeName";}
+                TABLEH() {str << "<span data-toggle='tooltip' title='NodeId'>#</span>";} 
+                TABLEH() {str << "NodeName";} 
             }
-            TABLEH() {str << "TabletType";}
-            TABLEH() {str << "TabletID";}
-            TABLEH_CLASS("sorter-text") {str << "CreateTime";}
-            TABLEH_CLASS("sorter-text") {str << "ChangeTime";}
-            TABLEH() {str << "Core state";}
-            TABLEH() {str << "User state";}
-            TABLEH() {str << "Gen";}
-            TABLEH_CLASS("sorter-false") {str << "Kill";}
-        }
-    }
+            TABLEH() {str << "TabletType";} 
+            TABLEH() {str << "TabletID";} 
+            TABLEH_CLASS("sorter-text") {str << "CreateTime";} 
+            TABLEH_CLASS("sorter-text") {str << "ChangeTime";} 
+            TABLEH() {str << "Core state";} 
+            TABLEH() {str << "User state";} 
+            TABLEH() {str << "Gen";} 
+            TABLEH_CLASS("sorter-false") {str << "Kill";} 
+        } 
+    } 
 }
 
 TString TTabletListRenderer::MakeTabletMonURL(const TTabletListElement& elem,
@@ -124,7 +124,7 @@ void TTabletListRenderer::RenderTableBody(TStringStream& str,
 {
     Y_UNUSED(listName);
     IOutputStream &__stream(str);
-    TABLEBODY() {
+    TABLEBODY() { 
     for (const auto& elem : tabletsToRender) {
         const auto& ti = *elem.TabletStateInfo;
         const auto& nodeInfo = *elem.NodeInfo;
@@ -133,33 +133,33 @@ void TTabletListRenderer::RenderTableBody(TStringStream& str,
         TString tabletTypeStr = TTabletTypes::TypeToStr(tabletType);
         TString nodeName = ToString(nodeInfo.NodeId);
 
-        TABLER() {
+        TABLER() { 
             if (filterInfo.FilterNodeId == 0) {
                 TString nodeName = nodeInfo.Host.empty() ? nodeInfo.Address : nodeInfo.Host;
                 TString tooltip = nodeInfo.Address;
-                TABLED() {str << ToString(nodeInfo.NodeId);}
-                TABLED() {str << "<span data-html='true' data-toggle='tooltip' title='" + tooltip + "'>" << nodeName << "</span>";}
+                TABLED() {str << ToString(nodeInfo.NodeId);} 
+                TABLED() {str << "<span data-html='true' data-toggle='tooltip' title='" + tooltip + "'>" << nodeName << "</span>";} 
             }
-            TABLED() {str << tabletTypeStr;}
+            TABLED() {str << tabletTypeStr;} 
             str << "<td data-text='" << index << "'>"
                 << "<a href=\"" << MakeTabletMonURL(elem, filterInfo) << "\">" << ti.tabletid() << "</a>"
                 << "</td>";
-            TABLED() {str << TInstant::MilliSeconds(ti.GetCreateTime()).ToStringUpToSeconds();}
-            TABLED() {str << TInstant::MilliSeconds(ti.GetChangeTime()).ToStringUpToSeconds();}
-            TABLED() {str << GetStateName((ETabletState)ti.GetState());}
-            TABLED() {str << GetUserStateName(elem);}
-            TABLED() {str << ti.generation();}
-            TABLED() {
+            TABLED() {str << TInstant::MilliSeconds(ti.GetCreateTime()).ToStringUpToSeconds();} 
+            TABLED() {str << TInstant::MilliSeconds(ti.GetChangeTime()).ToStringUpToSeconds();} 
+            TABLED() {str << GetStateName((ETabletState)ti.GetState());} 
+            TABLED() {str << GetUserStateName(elem);} 
+            TABLED() {str << ti.generation();} 
+            TABLED() { 
                 str << "<a href=\"nodetabmon?action=kill_tablet&tablet_id=" << ti.tabletid() << "&node_id=" << nodeInfo.NodeId;
                 if (filterInfo.FilterNodeId != 0)
                     str << "&filter_node_id=" << filterInfo.FilterNodeId;
                 str << "\">"
                     << "<span class=\"glyphicon glyphicon-remove\" title=\"Kill Tablet\"/>"
                     << "</span></a>";
-            }
-        }
-    }
+            } 
+        } 
     }
+    } 
 }
 
 TString TTabletListRenderer::GetStateName(ETabletState state) {
@@ -184,10 +184,10 @@ void TTabletListRenderer::RenderTabletList(TStringStream& str,
     IOutputStream &__stream(str);
     RenderHeader(str, listName, tabletsToRender, filterInfo);
 
-    TABLE_SORTABLE_CLASS("table") {
+    TABLE_SORTABLE_CLASS("table") { 
         RenderTableHeader(str, listName, tabletsToRender, filterInfo);
         RenderTableBody(str, listName, tabletsToRender, filterInfo);
-    }
+    } 
 }
 
 } // namespace NNodeTabletMonitor
diff --git a/ydb/core/tablet/tablet_monitoring_proxy.cpp b/ydb/core/tablet/tablet_monitoring_proxy.cpp
index a61a43b7e5..4857fd81d4 100644
--- a/ydb/core/tablet/tablet_monitoring_proxy.cpp
+++ b/ydb/core/tablet/tablet_monitoring_proxy.cpp
@@ -238,59 +238,59 @@ TTabletMonitoringProxyActor::Handle(NMon::TEvHttpInfo::TPtr &ev, const TActorCon
 
     const NKikimr::TDomainsInfo* domainsInfo = AppData(ctx)->DomainsInfo.Get();
     auto& domains = domainsInfo->Domains;
-    HTML(str) {
-        for (auto di: domains) {
-            ui32 domainId = di.first;
-            H3() {
-                str << "Domain \"" << di.second->Name << "\" (id: " << domainId << ")";
-            }
-            TABLE_SORTABLE_CLASS("table") {
-                TABLEHEAD() {
-                    TABLER() {
-                        TABLEH() {str << "Tablet";}
-                        TABLEH() {str << "ID";}
-                        TABLEH_CLASS("sorter-false") {}
-                        TABLEH_CLASS("sorter-false") {}
-                    }
+    HTML(str) { 
+        for (auto di: domains) { 
+            ui32 domainId = di.first; 
+            H3() { 
+                str << "Domain \"" << di.second->Name << "\" (id: " << domainId << ")"; 
+            } 
+            TABLE_SORTABLE_CLASS("table") { 
+                TABLEHEAD() { 
+                    TABLER() { 
+                        TABLEH() {str << "Tablet";} 
+                        TABLEH() {str << "ID";} 
+                        TABLEH_CLASS("sorter-false") {} 
+                        TABLEH_CLASS("sorter-false") {} 
+                    } 
                 }
-                TABLEBODY() {
-                    if (const ui64 schemeRootTabletId = di.second->SchemeRoot) {
-                        TABLER() {
+                TABLEBODY() { 
+                    if (const ui64 schemeRootTabletId = di.second->SchemeRoot) { 
+                        TABLER() { 
                             TABLED() {str << "<a href=\"tablets?TabletID=" << schemeRootTabletId << "\">SCHEMESHARD</a>";}
-                            TABLED() {str << schemeRootTabletId;}
-                            TABLED() {str << " <a href=\"tablets?SsId="
-                                        << schemeRootTabletId << "\">"
-                                        << "<span class=\"glyphicon glyphicon-tasks\""
-                                        << " title=\"State Storage\"/>"
-                                        << "</a>";}
-                            TABLED() {str << "<a href='tablets?KillTabletID=" << schemeRootTabletId << "'><span class='glyphicon glyphicon-remove' title='Kill Tablet'/></a>";}
-                        }
-                    }
-                    for (auto hi : di.second->HiveUids) {
-                        ui64 tabletId = domainsInfo->GetHive(hi);
-                        TABLER() {
-                            TABLED() {str << "<a href=\"tablets?TabletID=" << tabletId << "\">HIVE</a>";}
-                            TABLED() {str << tabletId;}
-                            TABLED() {str << " <a href=\"tablets?SsId="
-                                        << tabletId << "\">"
-                                        << "<span class=\"glyphicon glyphicon-tasks\""
-                                        << " title=\"State Storage\" />"
-                                        << "</a>";}
-                            TABLED() {str << "<a href='tablets?KillTabletID=" << tabletId << "'><span class='glyphicon glyphicon-remove' title='Kill Tablet'/></a>";}
-                        }
-                    }
-                    for (auto si : di.second->StateStorageGroups) {
-                        ui64 tabletId = NKikimr::MakeBSControllerID(si);
-                        TABLER() {
-                            TABLED() {str << "<a href=\"tablets?TabletID=" << tabletId << "\">BS_CONTROLLER</a>";}
-                            TABLED() {str << tabletId;}
-                            TABLED() {str << " <a href=\"tablets?SsId="
-                                        << tabletId << "\">"
-                                        << "<span class=\"glyphicon glyphicon-tasks\""
-                                        << " title=\"State Storage\" />"
-                                        << "</a>";}
-                            TABLED() {str << "<a href='tablets?KillTabletID=" << tabletId << "'><span class='glyphicon glyphicon-remove' title='Kill Tablet'/></a>";}
-                        }
+                            TABLED() {str << schemeRootTabletId;} 
+                            TABLED() {str << " <a href=\"tablets?SsId=" 
+                                        << schemeRootTabletId << "\">" 
+                                        << "<span class=\"glyphicon glyphicon-tasks\"" 
+                                        << " title=\"State Storage\"/>" 
+                                        << "</a>";} 
+                            TABLED() {str << "<a href='tablets?KillTabletID=" << schemeRootTabletId << "'><span class='glyphicon glyphicon-remove' title='Kill Tablet'/></a>";} 
+                        } 
+                    } 
+                    for (auto hi : di.second->HiveUids) { 
+                        ui64 tabletId = domainsInfo->GetHive(hi); 
+                        TABLER() { 
+                            TABLED() {str << "<a href=\"tablets?TabletID=" << tabletId << "\">HIVE</a>";} 
+                            TABLED() {str << tabletId;} 
+                            TABLED() {str << " <a href=\"tablets?SsId=" 
+                                        << tabletId << "\">" 
+                                        << "<span class=\"glyphicon glyphicon-tasks\"" 
+                                        << " title=\"State Storage\" />" 
+                                        << "</a>";} 
+                            TABLED() {str << "<a href='tablets?KillTabletID=" << tabletId << "'><span class='glyphicon glyphicon-remove' title='Kill Tablet'/></a>";} 
+                        } 
+                    } 
+                    for (auto si : di.second->StateStorageGroups) { 
+                        ui64 tabletId = NKikimr::MakeBSControllerID(si); 
+                        TABLER() { 
+                            TABLED() {str << "<a href=\"tablets?TabletID=" << tabletId << "\">BS_CONTROLLER</a>";} 
+                            TABLED() {str << tabletId;} 
+                            TABLED() {str << " <a href=\"tablets?SsId=" 
+                                        << tabletId << "\">" 
+                                        << "<span class=\"glyphicon glyphicon-tasks\"" 
+                                        << " title=\"State Storage\" />" 
+                                        << "</a>";} 
+                            TABLED() {str << "<a href='tablets?KillTabletID=" << tabletId << "'><span class='glyphicon glyphicon-remove' title='Kill Tablet'/></a>";} 
+                        } 
                         tabletId = NKikimr::MakeCmsID(si);
                         TABLER() {
                             TABLED() {str << "<a href=\"tablets?TabletID=" << tabletId << "\">CMS</a>";}
@@ -335,52 +335,52 @@ TTabletMonitoringProxyActor::Handle(NMon::TEvHttpInfo::TPtr &ev, const TActorCon
                                         << "</a>";}
                             TABLED() {str << "<a href='tablets?KillTabletID=" << tabletId << "'><span class='glyphicon glyphicon-remove' title='Kill Tablet'/></a>";}
                         }
-                    }
+                    } 
                     for (auto tabletId : di.second->Coordinators) {
-                        TABLER() {
-                            TABLED() {str << "<a href=\"tablets?TabletID=" << tabletId << "\">TX_COORDINATOR</a>";}
-                            TABLED() {str << tabletId;}
-                            TABLED() {str << " <a href=\"tablets?SsId="
-                                        << tabletId << "\">"
-                                        << "<span class=\"glyphicon glyphicon-tasks\""
-                                        << " title=\"State Storage\" />"
-                                        << "</a>";}
-                            TABLED() {str << "<a href='tablets?KillTabletID=" << tabletId << "'><span class='glyphicon glyphicon-remove' title='Kill Tablet'/></a>";}
-                        }
-                    }
+                        TABLER() { 
+                            TABLED() {str << "<a href=\"tablets?TabletID=" << tabletId << "\">TX_COORDINATOR</a>";} 
+                            TABLED() {str << tabletId;} 
+                            TABLED() {str << " <a href=\"tablets?SsId=" 
+                                        << tabletId << "\">" 
+                                        << "<span class=\"glyphicon glyphicon-tasks\"" 
+                                        << " title=\"State Storage\" />" 
+                                        << "</a>";} 
+                            TABLED() {str << "<a href='tablets?KillTabletID=" << tabletId << "'><span class='glyphicon glyphicon-remove' title='Kill Tablet'/></a>";} 
+                        } 
+                    } 
                     for (auto tabletId : di.second->Mediators) {
-                        TABLER() {
-                            TABLED() {str << "<a href=\"tablets?TabletID=" << tabletId << "\">TX_MEDIATOR</a>";}
-                            TABLED() {str << tabletId;}
-                            TABLED() {str << " <a href=\"tablets?SsId="
-                                        << tabletId << "\">"
-                                        << "<span class=\"glyphicon glyphicon-tasks\""
-                                        << " title=\"State Storage\" />"
-                                        << "</a>";}
-                            TABLED() {str << "<a href='tablets?KillTabletID=" << tabletId << "'><span class='glyphicon glyphicon-remove' title='Kill Tablet'/></a>";}
-                        }
-                    }
+                        TABLER() { 
+                            TABLED() {str << "<a href=\"tablets?TabletID=" << tabletId << "\">TX_MEDIATOR</a>";} 
+                            TABLED() {str << tabletId;} 
+                            TABLED() {str << " <a href=\"tablets?SsId=" 
+                                        << tabletId << "\">" 
+                                        << "<span class=\"glyphicon glyphicon-tasks\"" 
+                                        << " title=\"State Storage\" />" 
+                                        << "</a>";} 
+                            TABLED() {str << "<a href='tablets?KillTabletID=" << tabletId << "'><span class='glyphicon glyphicon-remove' title='Kill Tablet'/></a>";} 
+                        } 
+                    } 
                     for (auto tabletId : di.second->TxAllocators) {
-                        TABLER() {
+                        TABLER() { 
                             TABLED() {str << "<a href=\"tablets?TabletID=" << tabletId << "\">TX_ALLOCATOR</a>";}
-                            TABLED() {str << tabletId;}
-                            TABLED() {str << " <a href=\"tablets?SsId="
-                                        << tabletId << "\">"
-                                        << "<span class=\"glyphicon glyphicon-tasks\""
-                                        << " title=\"State Storage\" />"
-                                        << "</a>";}
-                            TABLED() {str << "<a href='tablets?KillTabletID=" << tabletId << "'><span class='glyphicon glyphicon-remove' title='Kill Tablet'/></a>";}
-                        }
-                    }
-                }
-            }
-        }
-        str << "<form method=\"GET\" id=\"tblMonPrxFrm\" name=\"tblMonPrxFrm\">" << Endl;
-        str << "<h2>Lookup</h2>" << Endl;
-        str << "TabletID: <input type=\"text\" id=\"TabletID\" name=\"TabletID\"/>" << Endl;
-        str << "<input class=\"btn btn-primary\" type=\"submit\" value=\"Watch\"/>" << Endl;
-        str << "</form>" << Endl;
-    }
+                            TABLED() {str << tabletId;} 
+                            TABLED() {str << " <a href=\"tablets?SsId=" 
+                                        << tabletId << "\">" 
+                                        << "<span class=\"glyphicon glyphicon-tasks\"" 
+                                        << " title=\"State Storage\" />" 
+                                        << "</a>";} 
+                            TABLED() {str << "<a href='tablets?KillTabletID=" << tabletId << "'><span class='glyphicon glyphicon-remove' title='Kill Tablet'/></a>";} 
+                        } 
+                    } 
+                } 
+            } 
+        } 
+        str << "<form method=\"GET\" id=\"tblMonPrxFrm\" name=\"tblMonPrxFrm\">" << Endl; 
+        str << "<h2>Lookup</h2>" << Endl; 
+        str << "TabletID: <input type=\"text\" id=\"TabletID\" name=\"TabletID\"/>" << Endl; 
+        str << "<input class=\"btn btn-primary\" type=\"submit\" value=\"Watch\"/>" << Endl; 
+        str << "</form>" << Endl; 
+    } 
     ctx.Send(ev->Sender, new NMon::TEvHttpInfoRes(str.Str()));
 }
 
diff --git a/ydb/core/tablet/ya.make b/ydb/core/tablet/ya.make
index 25e611b408..ef4678f777 100644
--- a/ydb/core/tablet/ya.make
+++ b/ydb/core/tablet/ya.make
@@ -22,7 +22,7 @@ SRCS(
     tablet_counters_aggregator.h
     tablet_counters_app.cpp
     tablet_counters_app.h
-    tablet_counters_protobuf.h
+    tablet_counters_protobuf.h 
     tablet_exception.h
     tablet_impl.h
     tablet_tracing_signals.cpp
diff --git a/ydb/core/tablet_flat/defs.h b/ydb/core/tablet_flat/defs.h
index 166674c3ff..a6fdb61a19 100644
--- a/ydb/core/tablet_flat/defs.h
+++ b/ydb/core/tablet_flat/defs.h
@@ -14,9 +14,9 @@
 
 namespace NKikimr {
 
-using TTxType = ui32; // App-specific transaction type number (protobuf enum values like TXTYPE_*)
-constexpr TTxType UnknownTxType = TTxType(-1);
-
+using TTxType = ui32; // App-specific transaction type number (protobuf enum values like TXTYPE_*) 
+constexpr TTxType UnknownTxType = TTxType(-1); 
+ 
 namespace NScheme {
 
     class TTypeRegistry;
diff --git a/ydb/core/tablet_flat/flat_cxx_database.h b/ydb/core/tablet_flat/flat_cxx_database.h
index 27a260bcb2..ccd38621e1 100644
--- a/ydb/core/tablet_flat/flat_cxx_database.h
+++ b/ydb/core/tablet_flat/flat_cxx_database.h
@@ -465,7 +465,7 @@ struct TConvertValueFromRawTypeValueToPod {
         return static_cast<TargetType>(static_cast<typename NSchemeTypeMapper<TColumnType::ColumnType>::Type>(Value));
     }
 };
-
+ 
 template <typename ColumnType, typename VectorType>
 struct TConvertValue<ColumnType, TVector<VectorType>, TRawTypeValue> {
     TVector<VectorType> Value;
diff --git a/ydb/core/tablet_flat/flat_database.cpp b/ydb/core/tablet_flat/flat_database.cpp
index c459119515..e86ae0ac8a 100644
--- a/ydb/core/tablet_flat/flat_database.cpp
+++ b/ydb/core/tablet_flat/flat_database.cpp
@@ -297,8 +297,8 @@ ui64 TDatabase::EstimateRowSize(ui32 tableId) const {
 const TDbStats& TDatabase::Counters() const noexcept
 {
     return DatabaseImpl->Stats;
-}
-
+} 
+ 
 TDatabase::TChg TDatabase::Head(ui32 table) const noexcept
 {
     if (table == Max<ui32>()) {
diff --git a/ydb/core/tablet_flat/flat_dbase_scheme.h b/ydb/core/tablet_flat/flat_dbase_scheme.h
index 1fd5ed2b48..57a040bcf8 100644
--- a/ydb/core/tablet_flat/flat_dbase_scheme.h
+++ b/ydb/core/tablet_flat/flat_dbase_scheme.h
@@ -147,8 +147,8 @@ public:
 
     inline const TColumn* GetColumnInfo(const TTableInfo* ptable, ui32 id) const {
         return ptable ? ptable->Columns.FindPtr(id) : nullptr;
-    }
-
+    } 
+ 
     bool IsEmpty() const {
         return Tables.empty();
     }
diff --git a/ydb/core/tablet_flat/flat_executor.cpp b/ydb/core/tablet_flat/flat_executor.cpp
index 59afc46215..9929e6f142 100644
--- a/ydb/core/tablet_flat/flat_executor.cpp
+++ b/ydb/core/tablet_flat/flat_executor.cpp
@@ -1741,7 +1741,7 @@ void TExecutor::PostponeTransaction(TAutoPtr<TSeat> seat, TPageCollectionTxEnv &
     if (pad->Seat->Retries == 1) {
         Counters->Cumulative()[TExecutorCounters::TX_RETRIED].Increment(1);
         Counters->Cumulative()[TExecutorCounters::TX_CACHE_HITS].Increment(touchedPages);
-    }
+    } 
 
     Counters->Cumulative()[TExecutorCounters::TX_BYTES_READ].Increment(loadBytes);
     Counters->Cumulative()[TExecutorCounters::TX_CACHE_MISSES].Increment(loadPages);
@@ -1768,8 +1768,8 @@ void TExecutor::CommitTransactionLog(TAutoPtr<TSeat> seat, TPageCollectionTxEnv
             PrivatePageCache->Touch(blockId, pageCollectionInfo);
     }
     Counters->Percentile()[TExecutorCounters::TX_PERCENTILE_TOUCHED_BLOCKS].IncrementFor(touchedBlocks);
-    if (AppTxCounters && txType != UnknownTxType)
-        AppTxCounters->TxCumulative(txType, COUNTER_TT_TOUCHED_BLOCKS).Increment(touchedBlocks);
+    if (AppTxCounters && txType != UnknownTxType) 
+        AppTxCounters->TxCumulative(txType, COUNTER_TT_TOUCHED_BLOCKS).Increment(touchedBlocks); 
 
     if (seat->Retries == 1) {
         Counters->Cumulative()[TExecutorCounters::TX_CACHE_HITS].Increment(touchedBlocks);
@@ -2275,10 +2275,10 @@ void TExecutor::CommitTransactionLog(TAutoPtr<TSeat> seat, TPageCollectionTxEnv
     Counters->Percentile()[TExecutorCounters::TX_PERCENTILE_EXECUTE_CPUTIME].IncrementFor(execTimeuS);
     Counters->Percentile()[TExecutorCounters::TX_PERCENTILE_BOOKKEEPING_CPUTIME].IncrementFor(bookkeepingTimeuS);
     Counters->Cumulative()[TExecutorCounters::CONSUMED_CPU].Increment(execTimeuS + bookkeepingTimeuS);
-    if (AppTxCounters && txType != UnknownTxType) {
-        AppTxCounters->TxCumulative(txType, COUNTER_TT_EXECUTE_CPUTIME).Increment(execTimeuS);
-        AppTxCounters->TxCumulative(txType, COUNTER_TT_BOOKKEEPING_CPUTIME).Increment(bookkeepingTimeuS);
-    }
+    if (AppTxCounters && txType != UnknownTxType) { 
+        AppTxCounters->TxCumulative(txType, COUNTER_TT_EXECUTE_CPUTIME).Increment(execTimeuS); 
+        AppTxCounters->TxCumulative(txType, COUNTER_TT_BOOKKEEPING_CPUTIME).Increment(bookkeepingTimeuS); 
+    } 
 
     if (ResourceMetrics) {
         ResourceMetrics->CPU.Increment(bookkeepingTimeuS + execTimeuS, Time->Now());
@@ -3632,28 +3632,28 @@ void TExecutor::RenderHtmlCounters(NMon::TEvRemoteHttpInfo::TPtr &ev) const {
     TStringStream str;
 
     if (Database) {
-        HTML(str) {
+        HTML(str) { 
             str << "<style>";
             str << "table.metrics { margin-bottom: 20px; }";
             str << "table.metrics td { text-align: right; padding-right: 10px; }";
             str << "table.metrics td:nth-child(3) { text-align: left; }";
             str << "</style>";
             if (Counters) {
-                H3() {str << "Executor counters";}
+                H3() {str << "Executor counters";} 
                 Counters->OutputHtml(str);
             }
 
             if (AppCounters) {
-                H3() {str << "App counters";}
+                H3() {str << "App counters";} 
                 AppCounters->OutputHtml(str);
             }
 
             if (ResourceMetrics) {
                 str << NMetrics::AsHTML(*ResourceMetrics);
             }
-        }
+        } 
     } else {
-        HTML(str) {str << "loading...";} // todo: populate from bootlogic
+        HTML(str) {str << "loading...";} // todo: populate from bootlogic 
     }
 
     Send(ev->Sender, new NMon::TEvRemoteHttpInfoRes(str.Str()));
@@ -3690,7 +3690,7 @@ void TExecutor::RenderHtmlPage(NMon::TEvRemoteHttpInfo::TPtr &ev) const {
         } else {
             message = "ERROR: cannot parse table id";
         }
-        HTML(str) {
+        HTML(str) { 
             DIV_CLASS("row") {
                 DIV_CLASS("col-md-12") {str << message; }
             }
@@ -3722,24 +3722,24 @@ void TExecutor::RenderHtmlPage(NMon::TEvRemoteHttpInfo::TPtr &ev) const {
                 DIV_CLASS("row") { str << "Booted tablet without dbase"; }
             }
 
-            H3() {str << "Scheme:";}
+            H3() {str << "Scheme:";} 
             TVector<ui32> tables;
             for (const auto &xtable : scheme->Tables)
                 tables.push_back(xtable.first);
             Sort(tables);
             for (auto itable : tables) {
                 const auto &tinfo = scheme->Tables.find(itable)->second;
-                H4() {str << "<a href='db?TabletID=" << Owner->TabletID() << "&TableID=" << tinfo.Id << "'>Table: \"" << tinfo.Name << "\" id: " << tinfo.Id << "</a>";}
-                TABLE_SORTABLE_CLASS("table") {
-                    TABLEHEAD() {
-                        TABLER() {
-                            TABLEH() {str << "Name";}
-                            TABLEH() {str << "Id";}
-                            TABLEH() {str << "Type";}
-                            TABLEH() {str << "Key order";}
-                         }
-                    }
-                    TABLEBODY() {
+                H4() {str << "<a href='db?TabletID=" << Owner->TabletID() << "&TableID=" << tinfo.Id << "'>Table: \"" << tinfo.Name << "\" id: " << tinfo.Id << "</a>";} 
+                TABLE_SORTABLE_CLASS("table") { 
+                    TABLEHEAD() { 
+                        TABLER() { 
+                            TABLEH() {str << "Name";} 
+                            TABLEH() {str << "Id";} 
+                            TABLEH() {str << "Type";} 
+                            TABLEH() {str << "Key order";} 
+                         } 
+                    } 
+                    TABLEBODY() { 
                         TVector<ui32> columns;
                         for (const auto &xcol : tinfo.Columns)
                             columns.push_back(xcol.first);
@@ -3747,18 +3747,18 @@ void TExecutor::RenderHtmlPage(NMon::TEvRemoteHttpInfo::TPtr &ev) const {
                         for (auto icol : columns) {
                             const auto &col = tinfo.Columns.find(icol)->second;
                             const bool isKey = (tinfo.KeyColumns.end() != std::find(tinfo.KeyColumns.begin(), tinfo.KeyColumns.end(), col.Id));
-                            TABLER() {
-                                TABLED() {str << col.Name;}
-                                TABLED() {str << col.Id;}
-                                TABLED() {str << tr.GetTypeName(col.PType);}
-                                TABLED() {str << (isKey ? ToString(col.KeyOrder) : "");}
-                            }
+                            TABLER() { 
+                                TABLED() {str << col.Name;} 
+                                TABLED() {str << col.Id;} 
+                                TABLED() {str << tr.GetTypeName(col.PType);} 
+                                TABLED() {str << (isKey ? ToString(col.KeyOrder) : "");} 
+                            } 
                         }
-                    }
-                }
+                    } 
+                } 
             }
 
-            H3() {str << "Storage:";}
+            H3() {str << "Storage:";} 
             DIV_CLASS("row") {str << "Bytes pinned in cache: " << PrivatePageCache->GetStats().PinnedSetSize << Endl; }
             DIV_CLASS("row") {str << "Bytes pinned to load: " << PrivatePageCache->GetStats().PinnedLoadSize << Endl; }
 
@@ -3770,8 +3770,8 @@ void TExecutor::RenderHtmlPage(NMon::TEvRemoteHttpInfo::TPtr &ev) const {
                 CompactionLogic->OutputHtml(str, *scheme, cgi);
 
             H3() {str << "Page collection cache:";}
-            DIV_CLASS("row") {str << "fresh bytes: " << CounterCacheFresh->Val(); }
-            DIV_CLASS("row") {str << "staging bytes: " << CounterCacheStaging->Val(); }
+            DIV_CLASS("row") {str << "fresh bytes: " << CounterCacheFresh->Val(); } 
+            DIV_CLASS("row") {str << "staging bytes: " << CounterCacheStaging->Val(); } 
             DIV_CLASS("row") {str << "memTable bytes: " << CounterCacheMemTable->Val(); }
             DIV_CLASS("row") {str << "Total collections: " << PrivatePageCache->GetStats().TotalCollections; }
             DIV_CLASS("row") {str << "Total bytes in shared cache: " << PrivatePageCache->GetStats().TotalSharedBody; }
@@ -3781,26 +3781,26 @@ void TExecutor::RenderHtmlPage(NMon::TEvRemoteHttpInfo::TPtr &ev) const {
             DIV_CLASS("row") {str << "Total bytes marked as sticky: " << PrivatePageCache->GetStats().TotalSticky; }
 
             if (GcLogic) {
-                H3() {str << "Gc logic:";}
+                H3() {str << "Gc logic:";} 
                 auto gcInfo = GcLogic->IntrospectStateSize();
-                DIV_CLASS("row") {str << "uncommited entries: " << gcInfo.UncommitedEntries;}
-                DIV_CLASS("row") {str << "uncommited blob ids: " << gcInfo.UncommitedBlobIds; }
-                DIV_CLASS("row") {str << "uncommited entries bytes: " << gcInfo.UncommitedEntriesBytes;}
-                DIV_CLASS("row") {str << "commited entries: " << gcInfo.CommitedEntries;}
-                DIV_CLASS("row") {str << "commited blob ids known: " << gcInfo.CommitedBlobIdsKnown;}
-                DIV_CLASS("row") {str << "commited blob ids left: " << gcInfo.CommitedBlobIdsLeft;}
-                DIV_CLASS("row") {str << "commited entries bytes: " << gcInfo.CommitedEntriesBytes; }
-                DIV_CLASS("row") {str << "active collect barriers: " << gcInfo.BarriersSetSize; }
+                DIV_CLASS("row") {str << "uncommited entries: " << gcInfo.UncommitedEntries;} 
+                DIV_CLASS("row") {str << "uncommited blob ids: " << gcInfo.UncommitedBlobIds; } 
+                DIV_CLASS("row") {str << "uncommited entries bytes: " << gcInfo.UncommitedEntriesBytes;} 
+                DIV_CLASS("row") {str << "commited entries: " << gcInfo.CommitedEntries;} 
+                DIV_CLASS("row") {str << "commited blob ids known: " << gcInfo.CommitedBlobIdsKnown;} 
+                DIV_CLASS("row") {str << "commited blob ids left: " << gcInfo.CommitedBlobIdsLeft;} 
+                DIV_CLASS("row") {str << "commited entries bytes: " << gcInfo.CommitedEntriesBytes; } 
+                DIV_CLASS("row") {str << "active collect barriers: " << gcInfo.BarriersSetSize; } 
             }
 
             if (BorrowLogic) {
-                H3() {str << "Borrow logic:";}
+                H3() {str << "Borrow logic:";} 
                 BorrowLogic->OutputHtml(str);
             }
-        }
+        } 
 
     } else {
-        HTML(str) {str << "loading...";} // todo: populate from bootlogic
+        HTML(str) {str << "loading...";} // todo: populate from bootlogic 
     }
 
     Send(ev->Sender, new NMon::TEvRemoteHttpInfoRes(str.Str()));
@@ -3815,7 +3815,7 @@ void TExecutor::RegisterExternalTabletCounters(TAutoPtr<TTabletCountersBase> app
     AppCounters = appCounters;
     AppCountersBaseline = MakeHolder<TTabletCountersBase>();
     AppCounters->RememberCurrentStateAsBaseline(*AppCountersBaseline);
-
+ 
     if (LogicRedo) {
         AppTxCounters = dynamic_cast<TTabletCountersWithTxTypes*>(AppCounters.Get());
         LogicRedo->InstallCounters(Counters.Get(), AppTxCounters);
diff --git a/ydb/core/tablet_flat/flat_executor.h b/ydb/core/tablet_flat/flat_executor.h
index df08b3a338..7c71830f4b 100644
--- a/ydb/core/tablet_flat/flat_executor.h
+++ b/ydb/core/tablet_flat/flat_executor.h
@@ -406,8 +406,8 @@ class TExecutor
     // Used control number of in flight events to the counter aggregator
     TIntrusivePtr<TEvTabletCounters::TInFlightCookie> CounterEventsInFlight;
 
-    TTabletCountersWithTxTypes* AppTxCounters = nullptr;
-
+    TTabletCountersWithTxTypes* AppTxCounters = nullptr; 
+ 
     TActorId Launcher;
 
     THashMap<TPrivatePageCacheWaitPad*, THolder<TTransactionWaitPad>> TransactionWaitPads;
@@ -609,7 +609,7 @@ public:
     const TExecutorStats& GetStats() const override;
     NMetrics::TResourceMetrics* GetResourceMetrics() const override;
 
-    void RegisterExternalTabletCounters(TAutoPtr<TTabletCountersBase> appCounters) override;
+    void RegisterExternalTabletCounters(TAutoPtr<TTabletCountersBase> appCounters) override; 
 
     static constexpr NKikimrServices::TActivity::EType ActorActivityType() {
         return NKikimrServices::TActivity::FLAT_EXECUTOR;
diff --git a/ydb/core/tablet_flat/flat_executor_borrowlogic.cpp b/ydb/core/tablet_flat/flat_executor_borrowlogic.cpp
index bd52264b10..d57dabc230 100644
--- a/ydb/core/tablet_flat/flat_executor_borrowlogic.cpp
+++ b/ydb/core/tablet_flat/flat_executor_borrowlogic.cpp
@@ -526,9 +526,9 @@ void TExecutorBorrowLogic::RestoreBorrowedInfo(const TLogoBlobID &blobId, const
 }
 
 void TExecutorBorrowLogic::OutputHtml(IOutputStream &out) {
-    HTML(out) {
-        H4() {out << "Borrowed parts";}
-        PRE() {
+    HTML(out) { 
+        H4() {out << "Borrowed parts";} 
+        PRE() { 
             for (const auto &xpair : BorrowedInfo) {
                 if (xpair.second.BorrowInfo.FullBorrow) {
                     out << xpair.first << ":";
@@ -537,10 +537,10 @@ void TExecutorBorrowLogic::OutputHtml(IOutputStream &out) {
                     out << Endl;
                 }
             }
-        }
+        } 
 
-        H4() {out << "Loaned parts";}
-        PRE() {
+        H4() {out << "Loaned parts";} 
+        PRE() { 
             for (const auto &xpair : BorrowedInfo) {
                 if (xpair.second.LoanInfo.Lender)
                     out << xpair.first << ": " << xpair.second.LoanInfo.Lender;
@@ -548,8 +548,8 @@ void TExecutorBorrowLogic::OutputHtml(IOutputStream &out) {
                     out << " - collected";
                 out << Endl;
             }
-        }
-    }
+        } 
+    } 
 }
 
 TString TExecutorBorrowLogic::DebugCheckBorrowConsistency(THashSet<TLogoBlobID> &knownBundles) {
diff --git a/ydb/core/tablet_flat/flat_executor_compaction_logic.cpp b/ydb/core/tablet_flat/flat_executor_compaction_logic.cpp
index 3d699e8f87..deaec5d7dc 100644
--- a/ydb/core/tablet_flat/flat_executor_compaction_logic.cpp
+++ b/ydb/core/tablet_flat/flat_executor_compaction_logic.cpp
@@ -737,11 +737,11 @@ ui64 TCompactionLogic::GetBackingSize(ui64 ownerTabletId) const {
 }
 
 void TCompactionLogic::OutputHtml(IOutputStream &out, const NTable::TScheme &scheme, const TCgiParameters& cgi) {
-    HTML(out) {
+    HTML(out) { 
         for (const auto &xtable : State->Tables) {
-            H4() {out << scheme.GetTableInfo(xtable.first)->Name;}
+            H4() {out << scheme.GetTableInfo(xtable.first)->Name;} 
 
-            DIV_CLASS("row") { out
+            DIV_CLASS("row") { out 
                 << "InMem Size: " << xtable.second.InMem.EstimatedSize
                 << ", Changes: " << xtable.second.InMem.Steps
                 << ", Compaction state: " << xtable.second.InMem.State
@@ -760,11 +760,11 @@ void TCompactionLogic::OutputHtml(IOutputStream &out, const NTable::TScheme &sch
                         << " (priority " << xtable.second.InMem.CompactionTask.Priority
                         << ") submitted " << xtable.second.InMem.CompactionTask.SubmissionTimestamp.ToStringLocal();
                 }
-            }
+            } 
 
             xtable.second.Strategy->OutputHtml(out);
         }
-    }
+    } 
 }
 
 }}
diff --git a/ydb/core/tablet_flat/flat_executor_txloglogic.cpp b/ydb/core/tablet_flat/flat_executor_txloglogic.cpp
index df59ddc245..9f6d4f6021 100644
--- a/ydb/core/tablet_flat/flat_executor_txloglogic.cpp
+++ b/ydb/core/tablet_flat/flat_executor_txloglogic.cpp
@@ -42,7 +42,7 @@ void TLogicRedo::Describe(IOutputStream &out) const noexcept
 
 void TLogicRedo::InstallCounters(TExecutorCounters *counters, TTabletCountersWithTxTypes *appTxCounters) {
     Counters = counters;
-    AppTxCounters = appTxCounters;
+    AppTxCounters = appTxCounters; 
 }
 
 NRedo::TStats TLogicRedo::LogStats() const noexcept
@@ -72,7 +72,7 @@ bool TLogicRedo::TerminateTransaction(TAutoPtr<TSeat> seat, const TActorContext
 
 void CompleteRoTransaction(TAutoPtr<TSeat> seat, const TActorContext &ownerCtx, TExecutorCounters *counters, TTabletCountersWithTxTypes *appTxCounters ) {
     const TTxType txType = seat->Self->GetTxType();
-
+ 
     const ui64 latencyus = ui64(1000000. * seat->LatencyTimer.Passed());
     counters->Percentile()[TExecutorCounters::TX_PERCENTILE_LATENCY_RO].IncrementFor(latencyus);
 
diff --git a/ydb/core/tablet_flat/flat_executor_txloglogic.h b/ydb/core/tablet_flat/flat_executor_txloglogic.h
index 1272c4f947..e11e996e08 100644
--- a/ydb/core/tablet_flat/flat_executor_txloglogic.h
+++ b/ydb/core/tablet_flat/flat_executor_txloglogic.h
@@ -58,7 +58,7 @@ public:
     ~TLogicRedo();
 
     void Describe(IOutputStream &out) const noexcept;
-    void InstallCounters(TExecutorCounters *counters, TTabletCountersWithTxTypes* appTxCounters);
+    void InstallCounters(TExecutorCounters *counters, TTabletCountersWithTxTypes* appTxCounters); 
     bool TerminateTransaction(TAutoPtr<TSeat>, const TActorContext &ctx, const TActorId &ownerId);
     bool CommitROTransaction(TAutoPtr<TSeat> seat, const TActorContext &ownerCtx);
     TCommitRWTransactionResult CommitRWTransaction(TAutoPtr<TSeat> seat, NTable::TChange &change, bool force);
diff --git a/ydb/core/tablet_flat/flat_iterator.h b/ydb/core/tablet_flat/flat_iterator.h
index 60195c17b4..130de7e6e9 100644
--- a/ydb/core/tablet_flat/flat_iterator.h
+++ b/ydb/core/tablet_flat/flat_iterator.h
@@ -404,15 +404,15 @@ private:
         Inactive = Active;
     }
 
-    // ITERATORS STORAGE
+    // ITERATORS STORAGE 
     // Range [ IteratorsHeap.begin(); Active ) form a heap
     // Range [ Active; IteratorsHeap.end() ) are currently active iterators (i.e. that have key equal to current key)
-    // Also note that active iterators should be traversed in reverse order
+    // Also note that active iterators should be traversed in reverse order 
     TComparator Comparator;
     using TIterators = TSmallVec<TElement>;
     using TForwardIter = typename TIterators::iterator;
     using TReverseIter = typename TIterators::reverse_iterator;
-
+ 
     TIterators Iterators;
     TForwardIter Active;
     TForwardIter Inactive;
@@ -420,7 +420,7 @@ private:
     TRowVersion DeltaVersion;
     bool Delta = false;
     bool Uncommitted = false;
-
+ 
     EReady Start() noexcept;
     EReady Turn() noexcept;
     EReady Snap() noexcept;
@@ -428,7 +428,7 @@ private:
     EReady DoSkipUncommitted() noexcept;
     EReady Apply() noexcept;
     void AddReadyIterator(TArrayRef<const TCell> key, TIteratorId itId);
-    void AddNotReadyIterator(TIteratorId itId);
+    void AddNotReadyIterator(TIteratorId itId); 
 
     bool SeekInternal(TArrayRef<const TCell> key, ESeek seek) noexcept;
 };
@@ -481,16 +481,16 @@ inline void TTableItBase<TIteratorOps>::AddReadyIterator(TArrayRef<const TCell>
     ++Active;
     std::push_heap(Iterators.begin(), Active, Comparator);
     Inactive = Active;
-}
-
+} 
+ 
 template<class TIteratorOps>
 inline void TTableItBase<TIteratorOps>::AddNotReadyIterator(TIteratorId itId) {
     size_t actPos = Active - Iterators.begin();
     Iterators.emplace_back(TElement({{ }, itId}));
     Active = Iterators.begin() + actPos;
     Inactive = Active;
-}
-
+} 
+ 
 template<class TIteratorOps>
 inline void TTableItBase<TIteratorOps>::Push(TAutoPtr<TMemIt> it)
 {
@@ -566,7 +566,7 @@ inline EReady TTableItBase<TIteratorOps>::Start() noexcept
     {
         return EReady::Gone;
     }
-
+ 
     auto key = Iterators.front().Key;
     PopHeap(Iterators.begin(), Active--, Comparator);
     while (Active != Iterators.begin()) {
@@ -581,7 +581,7 @@ inline EReady TTableItBase<TIteratorOps>::Start() noexcept
 
         PopHeap(Iterators.begin(), Active--, Comparator);
     }
-
+ 
     Stage = EStage::Snap;
     Inactive = Iterators.end();
     return EReady::Data;
@@ -651,7 +651,7 @@ inline EReady TTableItBase<TIteratorOps>::Turn() noexcept
         return EReady::Page;
     }
 
-    return Start();
+    return Start(); 
 }
 
 template<class TIteratorOps>
@@ -868,7 +868,7 @@ inline EReady TTableItBase<TIteratorOps>::Apply() noexcept
 
     bool committed = false;
     for (auto i = TReverseIter(Inactive), e = TReverseIter(Active); i != e; ++i) {
-        TIteratorId ai = i->IteratorId;
+        TIteratorId ai = i->IteratorId; 
         switch (ai.Type) {
             case EType::Mem: {
                 auto& it = *MemIters[ai.Index];
@@ -929,7 +929,7 @@ inline EReady TTableItBase<TIteratorOps>::Apply() noexcept
 template<class TIteratorOps>
 inline TDbTupleRef TTableItBase<TIteratorOps>::GetKey() const noexcept
 {
-    TIteratorId ai = Iterators.back().IteratorId;
+    TIteratorId ai = Iterators.back().IteratorId; 
     switch (ai.Type) {
         case EType::Mem:
             return MemIters[ai.Index]->GetKey();
diff --git a/ydb/core/tablet_flat/flat_scan_actor.h b/ydb/core/tablet_flat/flat_scan_actor.h
index 5cbf2797a0..34402b03ab 100644
--- a/ydb/core/tablet_flat/flat_scan_actor.h
+++ b/ydb/core/tablet_flat/flat_scan_actor.h
@@ -411,7 +411,7 @@ namespace NOps {
                 : LastSeen(seen)
                 , LastSkipped(skipped)
             {
-                GetTimeFast(&StartTime);
+                GetTimeFast(&StartTime); 
                 EndTime = StartTime;
             }
 
@@ -425,7 +425,7 @@ namespace NOps {
             }
 
             void UpdateCycles() {
-                GetTimeFast(&EndTime);
+                GetTimeFast(&EndTime); 
             }
 
             NHPTimer::STime ElapsedCycles() const {
diff --git a/ydb/core/tablet_flat/flat_table.h b/ydb/core/tablet_flat/flat_table.h
index a1fdeb9709..34839709af 100644
--- a/ydb/core/tablet_flat/flat_table.h
+++ b/ydb/core/tablet_flat/flat_table.h
@@ -9,7 +9,7 @@
 #include "flat_part_laid.h"
 #include "flat_part_slice.h"
 #include "flat_table_committed.h"
-#include "flat_table_part.h"
+#include "flat_table_part.h" 
 #include "flat_table_stats.h"
 #include "flat_table_subset.h"
 #include "flat_table_misc.h"
@@ -217,7 +217,7 @@ public:
 
         return size;
     }
-
+ 
     ui64 GetMemWaste() const noexcept
     {
         return Stat_.FrozenWaste + (Mutable ? Mutable->GetWastedMem() : 0);
diff --git a/ydb/core/tablet_flat/flat_table_part.cpp b/ydb/core/tablet_flat/flat_table_part.cpp
index 235229cc35..ffd1dc5e93 100644
--- a/ydb/core/tablet_flat/flat_table_part.cpp
+++ b/ydb/core/tablet_flat/flat_table_part.cpp
@@ -1,23 +1,23 @@
 #include "flat_page_label.h"
 #include "flat_part_iface.h"
-#include "flat_table_part.h"
+#include "flat_table_part.h" 
 #include "util_basics.h"
 
 #include <ydb/core/util/pb.h>
 #include <ydb/core/tablet_flat/protos/flat_table_part.pb.h>
 #include <library/cpp/containers/stack_vector/stack_vec.h>
 #include <util/generic/map.h>
-
-namespace NKikimr {
+ 
+namespace NKikimr { 
 namespace NTable {
-
+ 
 TPartScheme::TPartScheme(TArrayRef<const TColInfo> cols)
 {
     ui32 maxGroup = 0;
     for (auto& col : cols) {
         maxGroup = Max(maxGroup, col.Group);
     }
-
+ 
     ui32 pos = 0;
     Groups.resize(size_t(maxGroup) + 1);
     for (auto& col : cols) {
@@ -27,8 +27,8 @@ TPartScheme::TPartScheme(TArrayRef<const TColInfo> cols)
 
     FillKeySlots();
     FillHistoricSlots();
-}
-
+} 
+ 
 TIntrusiveConstPtr<TPartScheme> TPartScheme::Parse(TArrayRef<const char> raw, bool labeled)
 {
     if (labeled) {
@@ -72,8 +72,8 @@ TIntrusiveConstPtr<TPartScheme> TPartScheme::Parse(TArrayRef<const char> raw, bo
     }
 
     return new TPartScheme(cols);
-}
-
+} 
+ 
 void TPartScheme::FillKeySlots()
 {
     for (auto& group : Groups) {
@@ -197,12 +197,12 @@ TSharedData TPartScheme::Serialize() const
         if (col.IsKey()) {
             pb->SetKey(col.Key);
         }
-    }
-
-    TStringStream ss;
+    } 
+ 
+    TStringStream ss; 
     proto.SerializeToArcadiaStream(&ss);
 
     return NPage::THello::Wrap(ss.Str(), EPage::Schem2, Groups.size() > 1 ? 1 : 0);
-}
-
-}}
+} 
+ 
+}} 
diff --git a/ydb/core/tablet_flat/flat_table_part.h b/ydb/core/tablet_flat/flat_table_part.h
index aa555c515b..5fd42ec7e2 100644
--- a/ydb/core/tablet_flat/flat_table_part.h
+++ b/ydb/core/tablet_flat/flat_table_part.h
@@ -101,9 +101,9 @@ namespace NTable {
                 "Part has %" PRISZT " indexes, but %" PRISZT " historic indexes",
                 Groups, HistoricIndexes.size());
         }
-
+ 
         virtual ~TPart() = default;
-
+ 
         void Describe(IOutputStream &out) const noexcept
         {
             out
@@ -124,7 +124,7 @@ namespace NTable {
         virtual ui64 DataSize() const = 0;
         virtual ui64 BackingSize() const = 0;
         virtual ui64 GetPageSize(NPage::TPageId id, NPage::TGroupId groupId = { }) const = 0;
-
+ 
         const NPage::TIndex& GetGroupIndex(NPage::TGroupId groupId) const noexcept {
             if (!groupId.Historic) {
                 if (groupId.Index == 0) {
diff --git a/ydb/core/tablet_flat/flat_table_part_ut.cpp b/ydb/core/tablet_flat/flat_table_part_ut.cpp
index 185265a95e..04c823ca17 100644
--- a/ydb/core/tablet_flat/flat_table_part_ut.cpp
+++ b/ydb/core/tablet_flat/flat_table_part_ut.cpp
@@ -6,18 +6,18 @@
 #include "flat_stat_part.h"
 #include "flat_stat_table.h"
 #include "flat_page_other.h"
-
+ 
 #include <library/cpp/testing/unittest/registar.h>
-
+ 
 #include <util/stream/null.h>
 #include <util/random/mersenne.h>
 
-namespace NKikimr {
+namespace NKikimr { 
 namespace NTable {
 namespace NTest {
-
+ 
 Y_UNIT_TEST_SUITE(TLegacy) {
-
+ 
     /* This is legacy place for UT, do not put here more tests */
 
     static TIntrusiveConstPtr<NPage::TFrames> CookFrames()
@@ -312,10 +312,10 @@ Y_UNIT_TEST_SUITE(TLegacy) {
         }
     }
 
-}
-
+} 
+ 
 } // namespace NTest
 } // namspace NTable
-} // namespace NKikimr
-
-
+} // namespace NKikimr 
+ 
+ 
diff --git a/ydb/core/tablet_flat/protos/flat_table_part.proto b/ydb/core/tablet_flat/protos/flat_table_part.proto
index 61fa39e957..f2e00a0e91 100644
--- a/ydb/core/tablet_flat/protos/flat_table_part.proto
+++ b/ydb/core/tablet_flat/protos/flat_table_part.proto
@@ -1,26 +1,26 @@
 import "ydb/core/protos/base.proto";
 
 package NKikimr.NTable.NProto;
-option java_package = "ru.yandex.kikimr.proto";
-
+option java_package = "ru.yandex.kikimr.proto"; 
+ 
 message TEvol {
     required uint32 Tail  = 1;
     required uint32 Head  = 2;
 }
 
 message TPartColumn {
-    optional uint32 Tag = 1;
-    optional uint32 Type = 2;
+    optional uint32 Tag = 1; 
+    optional uint32 Type = 2; 
     optional uint32 Key = 3;
     optional uint32 Group = 4;
-}
-
+} 
+ 
 message TPartScheme {
     repeated TPartColumn Columns = 1;
-    repeated uint32 KeyTags = 2;
+    repeated uint32 KeyTags = 2; 
     optional uint32 Legacy0_ = 3;
-}
-
+} 
+ 
 message TLayout {
     optional uint32 Index = 1;
     optional uint32 Globs = 2;  // EPage::Globs, external blobs catalog
@@ -52,7 +52,7 @@ message TRoot { // NTable::TPart page collection metablob
     optional TLayout Layout = 8;// Non-data pages layout information
     optional NKikimrProto.TRowVersion MinRowVersion = 9;
     optional NKikimrProto.TRowVersion MaxRowVersion = 10;
-}
+} 
 
 message TSliceBounds {
     optional bytes FirstKey = 1;
diff --git a/ydb/core/tablet_flat/protos/ya.make b/ydb/core/tablet_flat/protos/ya.make
index fe35ffd0a8..91e7e3a2d8 100644
--- a/ydb/core/tablet_flat/protos/ya.make
+++ b/ydb/core/tablet_flat/protos/ya.make
@@ -7,7 +7,7 @@ OWNER(
 )
 
 SRCS(
-    flat_table_part.proto
+    flat_table_part.proto 
     flat_table_shard.proto
 )
 
diff --git a/ydb/core/tablet_flat/tablet_flat_executed.cpp b/ydb/core/tablet_flat/tablet_flat_executed.cpp
index 4b3c15490c..1781cd149b 100644
--- a/ydb/core/tablet_flat/tablet_flat_executed.cpp
+++ b/ydb/core/tablet_flat/tablet_flat_executed.cpp
@@ -161,7 +161,7 @@ void TTabletExecutedFlat::Detach(const TActorContext &ctx) {
 bool TTabletExecutedFlat::OnRenderAppHtmlPage(NMon::TEvRemoteHttpInfo::TPtr ev, const TActorContext &ctx) {
     if (ev) {
         TStringStream str;
-        HTML(str) {str << "nothing to see here...";}
+        HTML(str) {str << "nothing to see here...";} 
         ctx.Send(ev->Sender, new NMon::TEvRemoteHttpInfoRes(str.Str()));
     }
     return false;
@@ -188,48 +188,48 @@ void TTabletExecutedFlat::RenderHtmlPage(NMon::TEvRemoteHttpInfo::TPtr &ev, cons
     } else {
         const TDuration uptime = TAppData::TimeProvider->Now() - StartTime0;
         TStringStream str;
-        HTML(str) {
-            DIV_CLASS("row") {
-                DIV_CLASS("col-md-12") {str << "NodeID: " << ctx.SelfID.NodeId(); }
-            }
-            DIV_CLASS("row") {
-                DIV_CLASS("col-md-12") {str << "Uptime: " << uptime.ToString(); }
-            }
-            DIV_CLASS("row") {
+        HTML(str) { 
+            DIV_CLASS("row") { 
+                DIV_CLASS("col-md-12") {str << "NodeID: " << ctx.SelfID.NodeId(); } 
+            } 
+            DIV_CLASS("row") { 
+                DIV_CLASS("col-md-12") {str << "Uptime: " << uptime.ToString(); } 
+            } 
+            DIV_CLASS("row") { 
                 DIV_CLASS("col-md-12") {str << "Tablet type: " << TTabletTypes::TypeToStr((TTabletTypes::EType)TabletType()); }
-            }
-            DIV_CLASS("row") {
+            } 
+            DIV_CLASS("row") { 
                 DIV_CLASS("col-md-12") {str << "Tablet id: " << TabletID() << (Executor()->GetStats().IsFollower ? " Follower" : " Leader"); }
-            }
-            DIV_CLASS("row") {
-                DIV_CLASS("col-md-12") {str << "Tablet generation: " << Executor()->Generation();}
-            }
+            } 
+            DIV_CLASS("row") { 
+                DIV_CLASS("col-md-12") {str << "Tablet generation: " << Executor()->Generation();} 
+            } 
             DIV_CLASS("row") {
                 DIV_CLASS("col-md-12") { str << "Tenant id: " << Info()->TenantPathId; }
             }
 
             if (OnRenderAppHtmlPage(nullptr, ctx)) {
-                DIV_CLASS("row") {
-                    DIV_CLASS("col-md-12") {str << "<a href=\"tablets/app?" << queryString << "\">App</a>";}
-                }
+                DIV_CLASS("row") { 
+                    DIV_CLASS("col-md-12") {str << "<a href=\"tablets/app?" << queryString << "\">App</a>";} 
+                } 
             }
 
-            DIV_CLASS("row") {
-                DIV_CLASS("col-md-12") {str << "<a href=\"tablets/counters?" << queryString << "\">Counters</a>"; }
-            }
-            DIV_CLASS("row") {
-                DIV_CLASS("col-md-12") {str << "<a href=\"tablets/executorInternals?" << queryString << "\">Executor DB internals</a>";}
-            }
-            DIV_CLASS("row") {
+            DIV_CLASS("row") { 
+                DIV_CLASS("col-md-12") {str << "<a href=\"tablets/counters?" << queryString << "\">Counters</a>"; } 
+            } 
+            DIV_CLASS("row") { 
+                DIV_CLASS("col-md-12") {str << "<a href=\"tablets/executorInternals?" << queryString << "\">Executor DB internals</a>";} 
+            } 
+            DIV_CLASS("row") { 
                 DIV_CLASS("col-md-12") {str << "<a href=\"tablets?FollowerID=" << TabletID() << "\">Connect to follower</a>";}
-            }
-            DIV_CLASS("row") {
+            } 
+            DIV_CLASS("row") { 
                 DIV_CLASS("col-md-12") {str << "<a href=\"tablets?SsId=" << TabletID() << "\">State Storage</a>";}
-            }
-            DIV_CLASS("row") {
-                DIV_CLASS("col-md-12") {str << "<a href=\"tablets?KillTabletID=" << TabletID() << "\">Kill</a>";}
-            }
-        }
+            } 
+            DIV_CLASS("row") { 
+                DIV_CLASS("col-md-12") {str << "<a href=\"tablets?KillTabletID=" << TabletID() << "\">Kill</a>";} 
+            } 
+        } 
 
         ctx.Send(ev->Sender, new NMon::TEvRemoteHttpInfoRes(str.Str()));
         return;
diff --git a/ydb/core/tablet_flat/tablet_flat_executor.h b/ydb/core/tablet_flat/tablet_flat_executor.h
index 075ebce354..beb7e8b844 100644
--- a/ydb/core/tablet_flat/tablet_flat_executor.h
+++ b/ydb/core/tablet_flat/tablet_flat_executor.h
@@ -523,7 +523,7 @@ namespace NFlatExecutorSetup {
         virtual void RenderHtmlPage(NMon::TEvRemoteHttpInfo::TPtr&) const = 0;
         virtual void RenderHtmlCounters(NMon::TEvRemoteHttpInfo::TPtr&) const = 0;
         virtual void RenderHtmlDb(NMon::TEvRemoteHttpInfo::TPtr &ev, const TActorContext &ctx) const = 0;
-        virtual void RegisterExternalTabletCounters(TAutoPtr<TTabletCountersBase> appCounters) = 0;
+        virtual void RegisterExternalTabletCounters(TAutoPtr<TTabletCountersBase> appCounters) = 0; 
         virtual void GetTabletCounters(TEvTablet::TEvGetCounters::TPtr&) = 0;
 
         virtual void UpdateConfig(TEvTablet::TEvUpdateConfig::TPtr&) = 0;
diff --git a/ydb/core/tablet_flat/test/tool/perf/app.h b/ydb/core/tablet_flat/test/tool/perf/app.h
index 96f1e81d5a..4e7aa42fe5 100644
--- a/ydb/core/tablet_flat/test/tool/perf/app.h
+++ b/ydb/core/tablet_flat/test/tool/perf/app.h
@@ -1,11 +1,11 @@
 #pragma once
 
-#include "colons.h"
+#include "colons.h" 
 #include "do_zero.h"
 #include "do_mem.h"
 #include "do_part.h"
 #include "do_iter.h"
-#include "logger.h"
+#include "logger.h" 
 #include "sponge.h"
 #include "runner.h"
 
diff --git a/ydb/core/tablet_flat/test/tool/perf/colons.cpp b/ydb/core/tablet_flat/test/tool/perf/colons.cpp
index ba9f318ba0..07b77e46bd 100644
--- a/ydb/core/tablet_flat/test/tool/perf/colons.cpp
+++ b/ydb/core/tablet_flat/test/tool/perf/colons.cpp
@@ -1,90 +1,90 @@
-#include "colons.h"
-
-#include <util/generic/algorithm.h>
-
-using namespace NKikiSched;
-
-TColons::TColons(const TString &line)
-    : At(0)
-    , Line(line)
-{
-
-}
-
-
-TColons::~TColons()
-{
-
-}
-
-
-TString TColons::Next() noexcept
-{
-    TString token;
-
-    if (!*this) {
-        At = TString::npos;
-
-    } else {
-        const size_t end = Line.find(':', At);
-
-        token = Line.substr(At, end == TString::npos ? end : end - At);
-
-        if ((At = end) != TString::npos) At++;
-    }
-
-    return token;
-}
-
-
-TString TColons::Token(const TString &def) noexcept
-{
-    TString token = Next();
-
-    return token ? token : def;
-}
-
-
-size_t TColons::Large(size_t def)
-{
-    const TString item = Next();
-
-    return !item ? def : LargeParse(item);
-}
-
-
-size_t TColons::LargeParse(const TString &item)
-{
-    TString::const_iterator it = FindIf(item.begin(), item.end(), IsNumber);
-
-    if (it == item.begin()) {
-        throw yexception() << "Invalid value literal " << item;
-    }
-
-    size_t off = (it == item.end()) ? TString::npos : it - item.begin();
-
-    const TString pref = item.substr(0, off);
-    const TString suff = item.substr(off);
-
-    size_t value = FromString<size_t>(pref);
-
-    if (suff.empty()) {
-
-    } else if (suff == "k" || suff == "K") {
-        value <<= 10;
-
-    } else if (suff == "m" || suff == "M") {
-        value <<= 20;
-
-    } else if (suff == "g" || suff == "G") {
-        value <<= 30;
-
-    } else if (suff == "t" || suff == "T") {
-        value <<= 40;
-
-    } else {
-        throw yexception() << "Unknown value suffix " << suff;
-    }
-
-    return value;
-}
+#include "colons.h" 
+ 
+#include <util/generic/algorithm.h> 
+ 
+using namespace NKikiSched; 
+ 
+TColons::TColons(const TString &line) 
+    : At(0) 
+    , Line(line) 
+{ 
+ 
+} 
+ 
+ 
+TColons::~TColons() 
+{ 
+ 
+} 
+ 
+ 
+TString TColons::Next() noexcept 
+{ 
+    TString token; 
+ 
+    if (!*this) { 
+        At = TString::npos; 
+ 
+    } else { 
+        const size_t end = Line.find(':', At); 
+ 
+        token = Line.substr(At, end == TString::npos ? end : end - At); 
+ 
+        if ((At = end) != TString::npos) At++; 
+    } 
+ 
+    return token; 
+} 
+ 
+ 
+TString TColons::Token(const TString &def) noexcept 
+{ 
+    TString token = Next(); 
+ 
+    return token ? token : def; 
+} 
+ 
+ 
+size_t TColons::Large(size_t def) 
+{ 
+    const TString item = Next(); 
+ 
+    return !item ? def : LargeParse(item); 
+} 
+ 
+ 
+size_t TColons::LargeParse(const TString &item) 
+{ 
+    TString::const_iterator it = FindIf(item.begin(), item.end(), IsNumber); 
+ 
+    if (it == item.begin()) { 
+        throw yexception() << "Invalid value literal " << item; 
+    } 
+ 
+    size_t off = (it == item.end()) ? TString::npos : it - item.begin(); 
+ 
+    const TString pref = item.substr(0, off); 
+    const TString suff = item.substr(off); 
+ 
+    size_t value = FromString<size_t>(pref); 
+ 
+    if (suff.empty()) { 
+ 
+    } else if (suff == "k" || suff == "K") { 
+        value <<= 10; 
+ 
+    } else if (suff == "m" || suff == "M") { 
+        value <<= 20; 
+ 
+    } else if (suff == "g" || suff == "G") { 
+        value <<= 30; 
+ 
+    } else if (suff == "t" || suff == "T") { 
+        value <<= 40; 
+ 
+    } else { 
+        throw yexception() << "Unknown value suffix " << suff; 
+    } 
+ 
+    return value; 
+} 
diff --git a/ydb/core/tablet_flat/test/tool/perf/colons.h b/ydb/core/tablet_flat/test/tool/perf/colons.h
index 287187f682..3c07eba80d 100644
--- a/ydb/core/tablet_flat/test/tool/perf/colons.h
+++ b/ydb/core/tablet_flat/test/tool/perf/colons.h
@@ -1,79 +1,79 @@
-#pragma once
-
-#include <library/cpp/charset/ci_string.h>
-#include <util/generic/string.h>
-#include <util/string/cast.h>
-#include <util/datetime/base.h>
-
-namespace NKikiSched {
-    class TColons {
-    public:
-        TColons(const TString &line);
-        ~TColons();
-
-        operator bool() const noexcept
-        {
-            return At != TString::npos && At < Line.size();
-        }
-
-        TString Next() noexcept;
-        TString Token(const TString &def) noexcept;
-
-        template<typename TVal>
-        TVal Pop(const TVal &def)
-        {
-            const TString item = Next();
-
-            return !item ? def : FromString<TVal>(item);
-        }
-
-        template<typename TVal>
-        void Put(TVal &value)
-        {
-            value = Pop<TVal>(value);
-        }
-
-        template<typename TVal>
-        TVal Value(const TVal &def, bool hex = false)
-        {
-            const TString item = Next();
-
-            if (!item) {
-                return def;
-
-            } else if (hex) {
-                return IntFromString<ui64,16>(item);
-
-            } else {
-                return FromString<TVal>(item);
-            }
-        }
-
-        size_t Large(size_t def);
-
-        template<typename TInteger>
-        static TInteger LargeInt(const TCiString &literal)
-        {
-            size_t value = LargeParse(literal);
-
-            if (value > size_t(Max<TInteger>())) {
-
-                throw yexception() << "Value is out of integer range";
-            }
-
-            return value;
-        }
-
-        static size_t LargeParse(const TString&);
-
-    protected:
-        static bool IsNumber(char val) noexcept
-        {
-            return std::isdigit(val) == 0;
-        }
-
-    private:
-        size_t          At;
-        const TString    Line;
-    };
-}
+#pragma once 
+ 
+#include <library/cpp/charset/ci_string.h> 
+#include <util/generic/string.h> 
+#include <util/string/cast.h> 
+#include <util/datetime/base.h> 
+ 
+namespace NKikiSched { 
+    class TColons { 
+    public: 
+        TColons(const TString &line); 
+        ~TColons(); 
+ 
+        operator bool() const noexcept 
+        { 
+            return At != TString::npos && At < Line.size(); 
+        } 
+ 
+        TString Next() noexcept; 
+        TString Token(const TString &def) noexcept; 
+ 
+        template<typename TVal> 
+        TVal Pop(const TVal &def) 
+        { 
+            const TString item = Next(); 
+ 
+            return !item ? def : FromString<TVal>(item); 
+        } 
+ 
+        template<typename TVal> 
+        void Put(TVal &value) 
+        { 
+            value = Pop<TVal>(value); 
+        } 
+ 
+        template<typename TVal> 
+        TVal Value(const TVal &def, bool hex = false) 
+        { 
+            const TString item = Next(); 
+ 
+            if (!item) { 
+                return def; 
+ 
+            } else if (hex) { 
+                return IntFromString<ui64,16>(item); 
+ 
+            } else { 
+                return FromString<TVal>(item); 
+            } 
+        } 
+ 
+        size_t Large(size_t def); 
+ 
+        template<typename TInteger> 
+        static TInteger LargeInt(const TCiString &literal) 
+        { 
+            size_t value = LargeParse(literal); 
+ 
+            if (value > size_t(Max<TInteger>())) { 
+ 
+                throw yexception() << "Value is out of integer range"; 
+            } 
+ 
+            return value; 
+        } 
+ 
+        static size_t LargeParse(const TString&); 
+ 
+    protected: 
+        static bool IsNumber(char val) noexcept 
+        { 
+            return std::isdigit(val) == 0; 
+        } 
+ 
+    private: 
+        size_t          At; 
+        const TString    Line; 
+    }; 
+} 
diff --git a/ydb/core/tablet_flat/test/tool/perf/desc.h b/ydb/core/tablet_flat/test/tool/perf/desc.h
index 2f90fe0113..fce72869dd 100644
--- a/ydb/core/tablet_flat/test/tool/perf/desc.h
+++ b/ydb/core/tablet_flat/test/tool/perf/desc.h
@@ -1,80 +1,80 @@
-#pragma once
-
-#include "help.h"
-
-#include <util/stream/str.h>
-
-#include <tuple>
-#include <utility>
-
-namespace NKikiSched {
-
-    namespace NFmt {
-        using TOut  = IOutputStream&;
-
-        template<typename Type>
-        struct TPut {
-
-            template<typename ...TArg>
-            static void Do(TOut &out, const Type *ob, TArg&& ... args) noexcept
-            {
-                ob->Describe(out, std::forward<TArg>(args)...);
-            }
-        };
-
-        template<typename Type, typename ...TArg>
-        struct TDesc {
-            TDesc(const Type *ob, TArg&& ...args)
-                : Ob(ob), Args(std::forward<TArg>(args)...) { }
-
-            inline TOut& Do(TOut &out) const noexcept
-            {
-                using Tups = std::tuple_size<std::tuple<TArg...>>;
-
-                return Do(out, typename NHelp::TGenIx<Tups::value>::Type());
-            }
-
-        private:
-            template<size_t ... Index>
-            inline TOut& Do(TOut &out, NHelp::TIndexes<Index...>) const noexcept
-            {
-                if (Ob == nullptr) return out << "{nil}";
-
-                NFmt::TPut<Type>::Do(out, Ob, std::get<Index>(Args)...);
-
-                return out;
-            }
-
-            const Type              *Ob = nullptr;
-            std::tuple<TArg...>     Args;
-        };
-
-        template<typename Type, typename ...TArg>
-        inline TDesc<Type, TArg...> If(const Type *ob, TArg&& ...args) noexcept
-        {
-            return { ob, std::forward<TArg>(args)... };
-        }
-
-        template<typename Type, typename ...TArg>
-        inline TDesc<Type, TArg...> Do(const Type &ob, TArg&& ...args) noexcept
-        {
-            return { &ob, std::forward<TArg>(args)... };
-        }
-
-        template<typename Type, typename ...TArg>
-        inline TString Ln(const Type &ob, TArg&& ...args) noexcept
-        {
-            TStringStream ss;
-
-            TDesc<Type, TArg...>(&ob, std::forward<TArg>(args)...).Do(ss);
-
-            return ss.Str();
-        }
-
-        template<typename Type, typename ...TArg>
-        inline TOut& operator<<(TOut &out, const TDesc<Type, TArg...> &wrap)
-        {
-            return wrap.Do(out);
-        }
-    }
-}
+#pragma once 
+ 
+#include "help.h" 
+ 
+#include <util/stream/str.h> 
+ 
+#include <tuple> 
+#include <utility> 
+ 
+namespace NKikiSched { 
+ 
+    namespace NFmt { 
+        using TOut  = IOutputStream&; 
+ 
+        template<typename Type> 
+        struct TPut { 
+ 
+            template<typename ...TArg> 
+            static void Do(TOut &out, const Type *ob, TArg&& ... args) noexcept 
+            { 
+                ob->Describe(out, std::forward<TArg>(args)...); 
+            } 
+        }; 
+ 
+        template<typename Type, typename ...TArg> 
+        struct TDesc { 
+            TDesc(const Type *ob, TArg&& ...args) 
+                : Ob(ob), Args(std::forward<TArg>(args)...) { } 
+ 
+            inline TOut& Do(TOut &out) const noexcept 
+            { 
+                using Tups = std::tuple_size<std::tuple<TArg...>>; 
+ 
+                return Do(out, typename NHelp::TGenIx<Tups::value>::Type()); 
+            } 
+ 
+        private: 
+            template<size_t ... Index> 
+            inline TOut& Do(TOut &out, NHelp::TIndexes<Index...>) const noexcept 
+            { 
+                if (Ob == nullptr) return out << "{nil}"; 
+ 
+                NFmt::TPut<Type>::Do(out, Ob, std::get<Index>(Args)...); 
+ 
+                return out; 
+            } 
+ 
+            const Type              *Ob = nullptr; 
+            std::tuple<TArg...>     Args; 
+        }; 
+ 
+        template<typename Type, typename ...TArg> 
+        inline TDesc<Type, TArg...> If(const Type *ob, TArg&& ...args) noexcept 
+        { 
+            return { ob, std::forward<TArg>(args)... }; 
+        } 
+ 
+        template<typename Type, typename ...TArg> 
+        inline TDesc<Type, TArg...> Do(const Type &ob, TArg&& ...args) noexcept 
+        { 
+            return { &ob, std::forward<TArg>(args)... }; 
+        } 
+ 
+        template<typename Type, typename ...TArg> 
+        inline TString Ln(const Type &ob, TArg&& ...args) noexcept 
+        { 
+            TStringStream ss; 
+ 
+            TDesc<Type, TArg...>(&ob, std::forward<TArg>(args)...).Do(ss); 
+ 
+            return ss.Str(); 
+        } 
+ 
+        template<typename Type, typename ...TArg> 
+        inline TOut& operator<<(TOut &out, const TDesc<Type, TArg...> &wrap) 
+        { 
+            return wrap.Do(out); 
+        } 
+    } 
+} 
diff --git a/ydb/core/tablet_flat/test/tool/perf/format.h b/ydb/core/tablet_flat/test/tool/perf/format.h
index 0a65fa404f..09d3cd6e76 100644
--- a/ydb/core/tablet_flat/test/tool/perf/format.h
+++ b/ydb/core/tablet_flat/test/tool/perf/format.h
@@ -1,261 +1,261 @@
-#pragma once
-
-#include "desc.h"
-
-#include <util/string/printf.h>
-#include <util/system/types.h>
-#include <util/datetime/base.h>
-
-namespace NKikiSched {
-    namespace NFmt {
-        using TOut  = IOutputStream&;
-
-        struct TSerial {
-            using TVal  = ui64;
-
-            TSerial(TVal val, size_t dig = 8)
-                : Val(val), Dig(Min(dig, TSerial::Lim())) { }
-
-            static constexpr size_t Lim() noexcept
-            {
-                return sizeof(TVal) * 2;
-            }
-
-            TOut& Do(TOut &out) const noexcept
-            {
-                const char _pad_zero[] = "00000000000000000000";
-                const char _pad_ffff[] = "ff..ffffffffffffffff";
-
-                static_assert(TSerial::Lim() + 4 <= sizeof(_pad_ffff), "");
-
-                if (Val != Max<TVal>()) {
-                    char ln_[24];
-
-                    auto got = snprintf(ln_, sizeof(ln_), "%" PRIx64, Val);
-
-                    if (got < ssize_t(Dig)) out.Write(_pad_zero, Dig - got);
-
-                    out.Write(ln_, got);
-
-                } else if (Dig >= TSerial::Lim()) {
-
-                    out.Write(_pad_ffff + 4, TSerial::Lim());
-
-                } else {
-
-                    out.Write(_pad_ffff, Max(size_t(6), Dig));
-                }
-
-                return out;
-            }
-
-            TVal            Val     = 0;
-            size_t          Dig     = 0;
-        };
-
-        struct TLarge {
-            TLarge(ui64 val, bool pad = false): Val(val), Pad(pad) { }
-
-            TOut& Do(TOut &out) const noexcept
-            {
-                const ui64 grid[] = {
-                        0x00000000000003e8, /* K 10 ** 3    */
-                        0x00000000000f4240, /* M 10 ** 6    */
-                        0x000000003b9aca00, /* G 10 ** 9    */
-                        0x000000e8d4a51000, /* T 10 ** 12   */
-                        0x00038d7ea4c68000, /* P 10 ** 15   */
-                        0x0de0b6b3a7640000, /* E 10 ** 18   */
-                };
-
-                if (Val < 10000)   return Small(out);
-                if (Val < grid[1]) return Fixed(out, 'K', grid[0]);
-                if (Val < grid[2]) return Fixed(out, 'M', grid[1]);
-                if (Val < grid[3]) return Fixed(out, 'G', grid[2]);
-                if (Val < grid[4]) return Fixed(out, 'T', grid[3]);
-                if (Val < grid[5]) return Fixed(out, 'P', grid[4]);
-
-                return Fixed(out, 'E', grid[5]);
-            }
-
-        protected:
-            inline TOut& Small(TOut &out) const noexcept
-            {
-                char ln_[8];
-
-                auto got = snprintf(ln_, sizeof(ln_), "   %zu", Val);
-
-                if (got > 7 || got == 0) {
-                    out << "?bug";
-
-                } else if (Pad) {
-                    out.Write(ln_ + (got - 4), 4);
-
-                } else {
-                    out.Write(ln_ + 3, got - 3);
-                }
-
-                return out;
-            }
-
-            TOut& Fixed(TOut &out, char suff, ui64 base) const noexcept
-            {
-                char ln_[8];
-
-                snprintf(ln_, sizeof(ln_), "%.2f", double(Val) / base);
-
-                return ln_[3] = suff, out.Write(ln_, 4), out;
-            }
-
-            ui64            Val     = 0;
-            bool            Pad     = false;
-        };
-
-
-        struct TAverage {
-            TAverage(ui64 over, ui64 val, bool pad = true)
-                : Pad(pad), Ovr(over), Val(val) { }
-
-            TOut& Do(TOut &out) const noexcept
-            {
-                if (Val > 0 && Val < Ovr * 100) {
-                    char ln[8];
-
-                    snprintf(ln, sizeof(ln), "%.3f", double(Val) / Ovr);
-
-                    return ln[4] = '\0', out << ln;
-
-                } else if (Ovr > 0) {
-                    return NFmt::TLarge(Val ? Val / Ovr : 0, Pad).Do(out);
-
-                } else {
-                    return out << "+inf";
-                }
-            }
-
-            bool            Pad     = true;
-            ui64            Ovr     = 0;
-            ui64            Val     = 0;
-        };
-
-
-        struct TStamp {
-            TStamp(TInstant on): On(on) { }
-
-            TOut& Do(TOut &out) const noexcept
-            {
-                char ln_[24];
-
-                if (On == TInstant::Max()) out << "~inf";
-
-                ui64 sec = On.Seconds(), ms = On.MilliSeconds() - sec * 1000;
-
-                size_t sym = snprintf(ln_, sizeof(ln_), "%zu.%03zus", sec, ms);
-
-                return out.Write(ln_, Min(sym, sizeof(ln_))), out;
-            }
-
-        protected:
-            TInstant        On;
-        };
-
-
-        struct TDelay {
-            TDelay(TDuration val): Val(val) { }
-
-            TOut& Do(TOut &out) const noexcept
-            {
-                const ui64 grid[] =  {
-                        60ull,          /* minute                   */
-                        3600ull,        /* hour                     */
-                        86400ull,       /* day                      */
-                        604800ull,      /* week                     */
-                        8553600ull,     /* 99 days                  */
-                        31557600ull,    /* Julian 365.25 days year  */
-                        3155760000ull,  /* Julian 100 years century */
-                };
-
-                if (Val == TDuration::Max()) return out << "undef~";
-
-                const auto secs = Val.Seconds();
-
-                if (secs < grid[0]) return Small(out, secs);
-                if (secs < grid[1]) return Large(out, secs, 'm', grid[0]);
-                if (secs < grid[2]) return Large(out, secs, 'h', grid[1]);
-                if (secs < grid[4]) return Large(out, secs, 'd', grid[2]);
-                if (secs < grid[5]) return Large(out, secs, 'w', grid[3]);
-                if (secs < grid[6]) return Large(out, secs, 'y', grid[5]);
-
-                return Large(out, secs, 'c', grid[6]);
-            }
-
-        protected:
-            inline TOut& Small(TOut &out, ui64 secs) const noexcept
-            {
-                char ln_[8];
-
-                auto ms = Val.MilliSeconds() - secs * 1000;
-
-                snprintf(ln_, sizeof(ln_), "%zu.%.03zu", secs, ms);
-
-                return ln_[5] = 's', out.Write(ln_, 6), out;
-            }
-
-            TOut& Large(TOut &out, double sec, char suff, ui64 base) const
-            {
-                char ln_[16];
-
-                snprintf(ln_, sizeof(ln_), "%.03f", sec / base);
-
-                return ln_[5] = suff, out.Write(ln_, 6), out;
-            }
-
-            TDuration       Val;
-        };
-
-
-        struct TDelta {
-            TDelta(TInstant on, TInstant to): On(on), To(to) { }
-
-            TOut& Do(TOut &out) const noexcept
-            {
-                const auto pfx = (On <= To ? '+' : '-');
-
-                return out <<  pfx, TDelay(Max(On, To) - Min(On, To)).Do(out);
-            }
-
-        protected:
-            TInstant        On;
-            TInstant        To;
-        };
-
-        inline TOut& operator<<(TOut &out, const NFmt::TSerial &print)
-        {
-            return print.Do(out);
-        }
-
-        inline TOut& operator<<(TOut &out, const NFmt::TLarge &print)
-        {
-            return print.Do(out);
-        }
-
-        inline TOut& operator<<(TOut &out, const NFmt::TAverage &print)
-        {
-            return print.Do(out);
-        }
-
-        inline TOut& operator<<(TOut &out, const NFmt::TStamp &print)
-        {
-            return print.Do(out);
-        }
-
-        inline TOut& operator<<(TOut &out, const NFmt::TDelay &print)
-        {
-            return print.Do(out);
-        }
-
-        inline TOut& operator<<(TOut &out, const NFmt::TDelta &print)
-        {
-            return print.Do(out);
-        }
-    }
-}
+#pragma once 
+ 
+#include "desc.h" 
+ 
+#include <util/string/printf.h> 
+#include <util/system/types.h> 
+#include <util/datetime/base.h> 
+ 
+namespace NKikiSched { 
+    namespace NFmt { 
+        using TOut  = IOutputStream&; 
+ 
+        struct TSerial { 
+            using TVal  = ui64; 
+ 
+            TSerial(TVal val, size_t dig = 8) 
+                : Val(val), Dig(Min(dig, TSerial::Lim())) { } 
+ 
+            static constexpr size_t Lim() noexcept 
+            { 
+                return sizeof(TVal) * 2; 
+            } 
+ 
+            TOut& Do(TOut &out) const noexcept 
+            { 
+                const char _pad_zero[] = "00000000000000000000"; 
+                const char _pad_ffff[] = "ff..ffffffffffffffff"; 
+ 
+                static_assert(TSerial::Lim() + 4 <= sizeof(_pad_ffff), ""); 
+ 
+                if (Val != Max<TVal>()) { 
+                    char ln_[24]; 
+ 
+                    auto got = snprintf(ln_, sizeof(ln_), "%" PRIx64, Val); 
+ 
+                    if (got < ssize_t(Dig)) out.Write(_pad_zero, Dig - got); 
+ 
+                    out.Write(ln_, got); 
+ 
+                } else if (Dig >= TSerial::Lim()) { 
+ 
+                    out.Write(_pad_ffff + 4, TSerial::Lim()); 
+ 
+                } else { 
+ 
+                    out.Write(_pad_ffff, Max(size_t(6), Dig)); 
+                } 
+ 
+                return out; 
+            } 
+ 
+            TVal            Val     = 0; 
+            size_t          Dig     = 0; 
+        }; 
+ 
+        struct TLarge { 
+            TLarge(ui64 val, bool pad = false): Val(val), Pad(pad) { } 
+ 
+            TOut& Do(TOut &out) const noexcept 
+            { 
+                const ui64 grid[] = { 
+                        0x00000000000003e8, /* K 10 ** 3    */ 
+                        0x00000000000f4240, /* M 10 ** 6    */ 
+                        0x000000003b9aca00, /* G 10 ** 9    */ 
+                        0x000000e8d4a51000, /* T 10 ** 12   */ 
+                        0x00038d7ea4c68000, /* P 10 ** 15   */ 
+                        0x0de0b6b3a7640000, /* E 10 ** 18   */ 
+                }; 
+ 
+                if (Val < 10000)   return Small(out); 
+                if (Val < grid[1]) return Fixed(out, 'K', grid[0]); 
+                if (Val < grid[2]) return Fixed(out, 'M', grid[1]); 
+                if (Val < grid[3]) return Fixed(out, 'G', grid[2]); 
+                if (Val < grid[4]) return Fixed(out, 'T', grid[3]); 
+                if (Val < grid[5]) return Fixed(out, 'P', grid[4]); 
+ 
+                return Fixed(out, 'E', grid[5]); 
+            } 
+ 
+        protected: 
+            inline TOut& Small(TOut &out) const noexcept 
+            { 
+                char ln_[8]; 
+ 
+                auto got = snprintf(ln_, sizeof(ln_), "   %zu", Val); 
+ 
+                if (got > 7 || got == 0) { 
+                    out << "?bug"; 
+ 
+                } else if (Pad) { 
+                    out.Write(ln_ + (got - 4), 4); 
+ 
+                } else { 
+                    out.Write(ln_ + 3, got - 3); 
+                } 
+ 
+                return out; 
+            } 
+ 
+            TOut& Fixed(TOut &out, char suff, ui64 base) const noexcept 
+            { 
+                char ln_[8]; 
+ 
+                snprintf(ln_, sizeof(ln_), "%.2f", double(Val) / base); 
+ 
+                return ln_[3] = suff, out.Write(ln_, 4), out; 
+            } 
+ 
+            ui64            Val     = 0; 
+            bool            Pad     = false; 
+        }; 
+ 
+ 
+        struct TAverage { 
+            TAverage(ui64 over, ui64 val, bool pad = true) 
+                : Pad(pad), Ovr(over), Val(val) { } 
+ 
+            TOut& Do(TOut &out) const noexcept 
+            { 
+                if (Val > 0 && Val < Ovr * 100) { 
+                    char ln[8]; 
+ 
+                    snprintf(ln, sizeof(ln), "%.3f", double(Val) / Ovr); 
+ 
+                    return ln[4] = '\0', out << ln; 
+ 
+                } else if (Ovr > 0) { 
+                    return NFmt::TLarge(Val ? Val / Ovr : 0, Pad).Do(out); 
+ 
+                } else { 
+                    return out << "+inf"; 
+                } 
+            } 
+ 
+            bool            Pad     = true; 
+            ui64            Ovr     = 0; 
+            ui64            Val     = 0; 
+        }; 
+ 
+ 
+        struct TStamp { 
+            TStamp(TInstant on): On(on) { } 
+ 
+            TOut& Do(TOut &out) const noexcept 
+            { 
+                char ln_[24]; 
+ 
+                if (On == TInstant::Max()) out << "~inf"; 
+ 
+                ui64 sec = On.Seconds(), ms = On.MilliSeconds() - sec * 1000; 
+ 
+                size_t sym = snprintf(ln_, sizeof(ln_), "%zu.%03zus", sec, ms); 
+ 
+                return out.Write(ln_, Min(sym, sizeof(ln_))), out; 
+            } 
+ 
+        protected: 
+            TInstant        On; 
+        }; 
+ 
+ 
+        struct TDelay { 
+            TDelay(TDuration val): Val(val) { } 
+ 
+            TOut& Do(TOut &out) const noexcept 
+            { 
+                const ui64 grid[] =  { 
+                        60ull,          /* minute                   */ 
+                        3600ull,        /* hour                     */ 
+                        86400ull,       /* day                      */ 
+                        604800ull,      /* week                     */ 
+                        8553600ull,     /* 99 days                  */ 
+                        31557600ull,    /* Julian 365.25 days year  */ 
+                        3155760000ull,  /* Julian 100 years century */ 
+                }; 
+ 
+                if (Val == TDuration::Max()) return out << "undef~"; 
+ 
+                const auto secs = Val.Seconds(); 
+ 
+                if (secs < grid[0]) return Small(out, secs); 
+                if (secs < grid[1]) return Large(out, secs, 'm', grid[0]); 
+                if (secs < grid[2]) return Large(out, secs, 'h', grid[1]); 
+                if (secs < grid[4]) return Large(out, secs, 'd', grid[2]); 
+                if (secs < grid[5]) return Large(out, secs, 'w', grid[3]); 
+                if (secs < grid[6]) return Large(out, secs, 'y', grid[5]); 
+ 
+                return Large(out, secs, 'c', grid[6]); 
+            } 
+ 
+        protected: 
+            inline TOut& Small(TOut &out, ui64 secs) const noexcept 
+            { 
+                char ln_[8]; 
+ 
+                auto ms = Val.MilliSeconds() - secs * 1000; 
+ 
+                snprintf(ln_, sizeof(ln_), "%zu.%.03zu", secs, ms); 
+ 
+                return ln_[5] = 's', out.Write(ln_, 6), out; 
+            } 
+ 
+            TOut& Large(TOut &out, double sec, char suff, ui64 base) const 
+            { 
+                char ln_[16]; 
+ 
+                snprintf(ln_, sizeof(ln_), "%.03f", sec / base); 
+ 
+                return ln_[5] = suff, out.Write(ln_, 6), out; 
+            } 
+ 
+            TDuration       Val; 
+        }; 
+ 
+ 
+        struct TDelta { 
+            TDelta(TInstant on, TInstant to): On(on), To(to) { } 
+ 
+            TOut& Do(TOut &out) const noexcept 
+            { 
+                const auto pfx = (On <= To ? '+' : '-'); 
+ 
+                return out <<  pfx, TDelay(Max(On, To) - Min(On, To)).Do(out); 
+            } 
+ 
+        protected: 
+            TInstant        On; 
+            TInstant        To; 
+        }; 
+ 
+        inline TOut& operator<<(TOut &out, const NFmt::TSerial &print) 
+        { 
+            return print.Do(out); 
+        } 
+ 
+        inline TOut& operator<<(TOut &out, const NFmt::TLarge &print) 
+        { 
+            return print.Do(out); 
+        } 
+ 
+        inline TOut& operator<<(TOut &out, const NFmt::TAverage &print) 
+        { 
+            return print.Do(out); 
+        } 
+ 
+        inline TOut& operator<<(TOut &out, const NFmt::TStamp &print) 
+        { 
+            return print.Do(out); 
+        } 
+ 
+        inline TOut& operator<<(TOut &out, const NFmt::TDelay &print) 
+        { 
+            return print.Do(out); 
+        } 
+ 
+        inline TOut& operator<<(TOut &out, const NFmt::TDelta &print) 
+        { 
+            return print.Do(out); 
+        } 
+    } 
+} 
diff --git a/ydb/core/tablet_flat/test/tool/perf/help.h b/ydb/core/tablet_flat/test/tool/perf/help.h
index bcdb173a4a..e9ba94fb45 100644
--- a/ydb/core/tablet_flat/test/tool/perf/help.h
+++ b/ydb/core/tablet_flat/test/tool/perf/help.h
@@ -1,30 +1,30 @@
-#pragma once
-
-#include <tuple>
-#include <cstddef>
-
-namespace NKikiSched {
-
-    namespace NHelp {
-
-        template<size_t ...> struct TIndexes { };
-
+#pragma once 
+ 
+#include <tuple> 
+#include <cstddef> 
+ 
+namespace NKikiSched { 
+ 
+    namespace NHelp { 
+ 
+        template<size_t ...> struct TIndexes { }; 
+ 
         template<size_t N, size_t ...Obtained>
         struct TGenIx : TGenIx<N - 1, N - 1, Obtained...> { };
-
+ 
         template<size_t ...Obtained>
         struct TGenIx<0, Obtained...>
-        {
+        { 
             using Type = TIndexes<Obtained...>;
-        };
-
-        template<typename TAr1, typename TAr2>
-        static inline void IsArrSized(const TAr1&, const TAr2&) noexcept
-        {
-            constexpr auto nums = std::tuple_size<TAr1>::value;
-
-            static_assert(nums == std::tuple_size<TAr1>::value, "");
-        }
-    }
-
-}
+        }; 
+ 
+        template<typename TAr1, typename TAr2> 
+        static inline void IsArrSized(const TAr1&, const TAr2&) noexcept 
+        { 
+            constexpr auto nums = std::tuple_size<TAr1>::value; 
+ 
+            static_assert(nums == std::tuple_size<TAr1>::value, ""); 
+        } 
+    } 
+ 
+} 
diff --git a/ydb/core/tablet_flat/test/tool/perf/iface_logger.h b/ydb/core/tablet_flat/test/tool/perf/iface_logger.h
index ea4d90a2b1..a267632616 100644
--- a/ydb/core/tablet_flat/test/tool/perf/iface_logger.h
+++ b/ydb/core/tablet_flat/test/tool/perf/iface_logger.h
@@ -1,70 +1,70 @@
-#pragma once
-
-#include <util/stream/str.h>
-#include <util/string/printf.h>
-
-namespace NKikiSched {
-
-    enum class ELnLev {
-        None    = 0,
-
-        CRIT    = 1,
-        ERROR   = 2,
-        WARN    = 3,
-
-        INFO    = 4,
-        INF1    = 5,
-        INF2    = 6,
-        INF3    = 7,
-
-        DEBUG   = 8,
-        DBG01   = 9,
-    };
-
-    class ILogged {
-    public:
-        virtual void LogLn(ELnLev, const TString&) const noexcept = 0;
-    };
-
-    class TLogLn : public TStringStream {
-    public:
-        TLogLn(const ILogged *logged, ELnLev level)
-            : Logged(logged)
-            , Level(level)
-        {
-
-        }
-
-        ~TLogLn()
-        {
-            if (!Logged) {
-                /* Just a dummy line    */
-
-            } else if (this->empty()) {
-                /* Nothing was logged   */
-
-            } else {
-                Logged->LogLn(Level, Str());
-            }
-        }
-
-        explicit operator bool() const noexcept
-        {
-            return Logged != nullptr;
-        }
-
-    private:
-        const ILogged * Logged  = nullptr;
-        const ELnLev    Level   = ELnLev::None;
-    };
-
-    class ILogger {
-    public:
-        virtual ~ILogger()
-        {
-
-        }
-
-        virtual TLogLn Log(ELnLev) const noexcept = 0;
-    };
-}
+#pragma once 
+ 
+#include <util/stream/str.h> 
+#include <util/string/printf.h> 
+ 
+namespace NKikiSched { 
+ 
+    enum class ELnLev { 
+        None    = 0, 
+ 
+        CRIT    = 1, 
+        ERROR   = 2, 
+        WARN    = 3, 
+ 
+        INFO    = 4, 
+        INF1    = 5, 
+        INF2    = 6, 
+        INF3    = 7, 
+ 
+        DEBUG   = 8, 
+        DBG01   = 9, 
+    }; 
+ 
+    class ILogged { 
+    public: 
+        virtual void LogLn(ELnLev, const TString&) const noexcept = 0; 
+    }; 
+ 
+    class TLogLn : public TStringStream { 
+    public: 
+        TLogLn(const ILogged *logged, ELnLev level) 
+            : Logged(logged) 
+            , Level(level) 
+        { 
+ 
+        } 
+ 
+        ~TLogLn() 
+        { 
+            if (!Logged) { 
+                /* Just a dummy line    */ 
+ 
+            } else if (this->empty()) { 
+                /* Nothing was logged   */ 
+ 
+            } else { 
+                Logged->LogLn(Level, Str()); 
+            } 
+        } 
+ 
+        explicit operator bool() const noexcept 
+        { 
+            return Logged != nullptr; 
+        } 
+ 
+    private: 
+        const ILogged * Logged  = nullptr; 
+        const ELnLev    Level   = ELnLev::None; 
+    }; 
+ 
+    class ILogger { 
+    public: 
+        virtual ~ILogger() 
+        { 
+ 
+        } 
+ 
+        virtual TLogLn Log(ELnLev) const noexcept = 0; 
+    }; 
+} 
diff --git a/ydb/core/tablet_flat/test/tool/perf/logger.h b/ydb/core/tablet_flat/test/tool/perf/logger.h
index 979b5fead4..1cef7b360a 100644
--- a/ydb/core/tablet_flat/test/tool/perf/logger.h
+++ b/ydb/core/tablet_flat/test/tool/perf/logger.h
@@ -1,7 +1,7 @@
 #pragma once
 
-#include "iface_logger.h"
-#include "format.h"
+#include "iface_logger.h" 
+#include "format.h" 
 
 #include <util/datetime/base.h>
 
diff --git a/ydb/core/tablet_flat/test/tool/perf/meter.h b/ydb/core/tablet_flat/test/tool/perf/meter.h
index cb6a76fd5a..7017ba5f6b 100644
--- a/ydb/core/tablet_flat/test/tool/perf/meter.h
+++ b/ydb/core/tablet_flat/test/tool/perf/meter.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "format.h"
+#include "format.h" 
 
 namespace NKikimr {
 namespace NTable {
diff --git a/ydb/core/tablet_flat/test/tool/perf/ya.make b/ydb/core/tablet_flat/test/tool/perf/ya.make
index dc0e8ca728..f881bba2ed 100644
--- a/ydb/core/tablet_flat/test/tool/perf/ya.make
+++ b/ydb/core/tablet_flat/test/tool/perf/ya.make
@@ -3,13 +3,13 @@ PROGRAM(table-perf)
 OWNER(g:kikimr)
 
 SRCS(
-    colons.cpp
+    colons.cpp 
     main.cpp
 )
 
 PEERDIR(
     ydb/core/tablet_flat/test/libs/table
-    library/cpp/charset
+    library/cpp/charset 
     library/cpp/getopt
     ydb/core/tablet_flat
 )
diff --git a/ydb/core/tablet_flat/ut/flat_test_db_helpers.h b/ydb/core/tablet_flat/ut/flat_test_db_helpers.h
index ffc9a36daa..44d055d819 100644
--- a/ydb/core/tablet_flat/ut/flat_test_db_helpers.h
+++ b/ydb/core/tablet_flat/ut/flat_test_db_helpers.h
@@ -40,9 +40,9 @@ public:
     }
 
     void SetOp(ECellOp op) {
-        Op = op;
-    }
-
+        Op = op; 
+    } 
+ 
     TCell operator*() const
     {
         return TCell((const char*)Val.Data(), Val.Size());
@@ -51,10 +51,10 @@ public:
     const TRawTypeValue& Get() const {
         return Val;
     }
-
+ 
     ECellOp GetOp() const {
-        return Op;
-    }
+        return Op; 
+    } 
 };
 
 // TODO: properly support all types
@@ -77,11 +77,11 @@ inline TFakeTableCell FromVal(NScheme::TTypeId t, i64 val) {
 }
 
 inline TFakeTableCell MakeNull(ECellOp op) {
-    TFakeTableCell c;
-    c.SetOp(op);
-    return c;
-}
-
+    TFakeTableCell c; 
+    c.SetOp(op); 
+    return c; 
+} 
+ 
 inline TFakeTableCell FromVal(NScheme::TTypeId, std::nullptr_t) {
     return MakeNull(ECellOp::Set);
 }
@@ -152,16 +152,16 @@ public:
     }
 
     TDbRowUpdate& Erase(TString tagName) {
-        const TScheme::TTableInfo* tableInfo = Scheme.GetTableInfo(GetRoot());
+        const TScheme::TTableInfo* tableInfo = Scheme.GetTableInfo(GetRoot()); 
         Y_VERIFY(tableInfo, "Unknown table id %u", GetRoot());
-        const ui32* tagId = tableInfo->ColumnNames.FindPtr(tagName);
+        const ui32* tagId = tableInfo->ColumnNames.FindPtr(tagName); 
         Y_VERIFY(tagId, "Unknown column \"%s\" in table %u", tagName.data(), GetRoot());
         const auto * colInfo = Scheme.GetColumnInfo(GetRoot(), *tagId);
         Y_VERIFY(colInfo, "Column info not found for table id %u, column id %u", GetRoot(), *tagId);
         TagOps[*tagId] = MakeNull(ECellOp::Null);
-        return *this;
-    }
-
+        return *this; 
+    } 
+ 
     const TMap<ui32, TFakeTableCell>& GetTagOps() const {
         return TagOps;
     }
@@ -185,12 +185,12 @@ void AppendKeyColumn(ui32 root, const TScheme& scheme, TVector<TFakeTableCell>&
     AppendKeyColumn(root, scheme, tuple, tt...);
 }
 
-template <typename... Tt>
+template <typename... Tt> 
 void AppendKeyColumn(ui32 root, const TScheme& scheme, TVector<TFakeTableCell>& tuple, nullptr_t, Tt... tt) {
     tuple.push_back(MakeNull(ECellOp::Set));
-    AppendKeyColumn(root, scheme, tuple, tt...);
-}
-
+    AppendKeyColumn(root, scheme, tuple, tt...); 
+} 
+ 
 // Helps to simplify test code that deals with ITestDb
 class TDbWrapper {
     ITestDb& Db;
diff --git a/ydb/core/tablet_flat/ut/ya.make b/ydb/core/tablet_flat/ut/ya.make
index fd66d04202..e16c0d8f92 100644
--- a/ydb/core/tablet_flat/ut/ya.make
+++ b/ydb/core/tablet_flat/ut/ya.make
@@ -25,7 +25,7 @@ SRCS(
     flat_range_cache_ut.cpp
     flat_row_versions_ut.cpp
     flat_sausagecache_ut.cpp
-    flat_table_part_ut.cpp
+    flat_table_part_ut.cpp 
     flat_test_db.h
     flat_test_db.cpp
     flat_test_db_helpers.h
diff --git a/ydb/core/testlib/actor_helpers.cpp b/ydb/core/testlib/actor_helpers.cpp
index 7c039615ab..ccf0bb5f1c 100644
--- a/ydb/core/testlib/actor_helpers.cpp
+++ b/ydb/core/testlib/actor_helpers.cpp
@@ -7,7 +7,7 @@ TActorSystemStub::TActorSystemStub() {
     System.Reset(new NActors::TActorSystem(setup));
     Mailbox.Reset(new NActors::TMailboxHeader(NActors::TMailboxType::Simple));
     ExecutorThread.Reset(new NActors::TExecutorThread(0, System.Get(), nullptr, nullptr, "thread"));
-    Ctx.Reset(new NActors::TActorContext(*Mailbox, *ExecutorThread, GetCycleCountFast(), SelfID));
+    Ctx.Reset(new NActors::TActorContext(*Mailbox, *ExecutorThread, GetCycleCountFast(), SelfID)); 
     PrevCtx = NActors::TlsActivationContext;
     NActors::TlsActivationContext = Ctx.Get();
 }
diff --git a/ydb/core/testlib/actors/test_runtime.cpp b/ydb/core/testlib/actors/test_runtime.cpp
index 63f0436bff..34000a4989 100644
--- a/ydb/core/testlib/actors/test_runtime.cpp
+++ b/ydb/core/testlib/actors/test_runtime.cpp
@@ -111,7 +111,7 @@ namespace NActors {
                 node->SchedulerPool.Reset(CreateExecutorPoolStub(this, nodeIndex, node, 0));
                 node->MailboxTable.Reset(new TMailboxTable());
                 node->ActorSystem = MakeActorSystem(nodeIndex, node);
-                node->ExecutorThread.Reset(new TExecutorThread(0, 0, node->ActorSystem.Get(), node->SchedulerPool.Get(), node->MailboxTable.Get(), "TestExecutor"));
+                node->ExecutorThread.Reset(new TExecutorThread(0, 0, node->ActorSystem.Get(), node->SchedulerPool.Get(), node->MailboxTable.Get(), "TestExecutor")); 
             } else {
                 node->AppData0.reset(new NKikimr::TAppData(0, 1, 2, 3, { }, app0->TypeRegistry, app0->FunctionRegistry, app0->FormatFactory, nullptr));
                 node->ActorSystem = MakeActorSystem(nodeIndex, node);
diff --git a/ydb/core/testlib/minikql_compile.h b/ydb/core/testlib/minikql_compile.h
index 4d76ca8d73..4d527012ec 100644
--- a/ydb/core/testlib/minikql_compile.h
+++ b/ydb/core/testlib/minikql_compile.h
@@ -1,19 +1,19 @@
-#pragma once
-
+#pragma once 
+ 
 #include <ydb/core/scheme/scheme_tabledefs.h>
 #include <ydb/core/client/minikql_compile/db_key_resolver.h>
 #include <ydb/core/client/minikql_compile/yql_expr_minikql.h>
 #include <library/cpp/threading/future/future.h>
 #include <util/thread/pool.h>
 #include <library/cpp/testing/unittest/registar.h>
-
+ 
 class TMockDbSchemeResolver : public NYql::IDbSchemeResolver {
-public:
-    TMockDbSchemeResolver()
-    {
-        MtpQueue.Start(2);
-    }
-
+public: 
+    TMockDbSchemeResolver() 
+    { 
+        MtpQueue.Start(2); 
+    } 
+ 
     template <typename Func>
     NThreading::TFuture<NThreading::TFutureType<::TFunctionResult<Func>>> Async(Func&& func, IThreadPool& queue) {
         auto promise = NThreading::NewPromise<NThreading::TFutureType<::TFunctionResult<Func>>>();
@@ -25,68 +25,68 @@ public:
     }
 
     virtual NThreading::TFuture<TTableResults> ResolveTables(const TVector<TTable>& tables) override {
-        TTableResults results;
-        results.reserve(tables.size());
-        for (auto& table : tables) {
-            TTableResult result(TTableResult::Ok);
-            auto data = Tables.FindPtr(table.TableName);
-            if (!data) {
-                result.Status = TTableResult::Error;
-                result.Reason = TStringBuilder() << "Table " << table.TableName << " not found";
-            }
-            else {
-                result.Table = table;
-                result.TableId.Reset(new NKikimr::TTableId(*data->TableId));
-                result.KeyColumnCount = data->KeyColumnCount;
-
-                for (auto& column : table.ColumnNames) {
+        TTableResults results; 
+        results.reserve(tables.size()); 
+        for (auto& table : tables) { 
+            TTableResult result(TTableResult::Ok); 
+            auto data = Tables.FindPtr(table.TableName); 
+            if (!data) { 
+                result.Status = TTableResult::Error; 
+                result.Reason = TStringBuilder() << "Table " << table.TableName << " not found"; 
+            } 
+            else { 
+                result.Table = table; 
+                result.TableId.Reset(new NKikimr::TTableId(*data->TableId)); 
+                result.KeyColumnCount = data->KeyColumnCount; 
+
+                for (auto& column : table.ColumnNames) { 
                     auto columnInfo = data->Columns.FindPtr(column);
                     Y_VERIFY(column);
-
+ 
                     auto insertResult = result.Columns.insert(std::make_pair(column, *columnInfo));
                     Y_VERIFY(insertResult.second);
-                }
-            }
-
-            results.push_back(result);
-        }
-
+                } 
+            } 
+ 
+            results.push_back(result); 
+        } 
+ 
         return Async([results]() {
-            return results;
-        }, MtpQueue);
-    }
-
+            return results; 
+        }, MtpQueue); 
+    } 
+ 
     virtual void ResolveTables(const TVector<TTable>& tables, NActors::TActorId responseTo) override {
         Y_UNUSED(tables);
         Y_UNUSED(responseTo);
-        ythrow yexception() << "Not implemented";
-    }
-
-    void AddTable(const IDbSchemeResolver::TTableResult& table) {
+        ythrow yexception() << "Not implemented"; 
+    } 
+ 
+    void AddTable(const IDbSchemeResolver::TTableResult& table) { 
         Y_ENSURE(!!table.TableId, "TableId must be defined");
-        if (!Tables.insert({ table.Table.TableName, table }).second) {
-            ythrow yexception() << "Table " << table.Table.TableName << " is already registered";
-        }
-    }
-
-private:
+        if (!Tables.insert({ table.Table.TableName, table }).second) { 
+            ythrow yexception() << "Table " << table.Table.TableName << " is already registered"; 
+        } 
+    } 
+ 
+private: 
     TThreadPool MtpQueue;
     THashMap<TString, IDbSchemeResolver::TTableResult> Tables;
-};
-
+}; 
+ 
 namespace NYql {
 
 inline TExprContainer::TPtr ParseText(const TString& programText) {
-    TAstParseResult astRes = ParseAst(programText);
+    TAstParseResult astRes = ParseAst(programText); 
     astRes.Issues.PrintTo(Cerr);
-    UNIT_ASSERT(astRes.IsOk());
-
-    TExprContainer::TPtr expr(new TExprContainer());
+    UNIT_ASSERT(astRes.IsOk()); 
+ 
+    TExprContainer::TPtr expr(new TExprContainer()); 
     bool isOk = CompileExpr(*astRes.Root, expr->Root, expr->Context, nullptr);
     expr->Context.IssueManager.GetIssues().PrintTo(Cerr);
-    UNIT_ASSERT(isOk);
-    return expr;
-}
-
+    UNIT_ASSERT(isOk); 
+    return expr; 
+} 
+ 
 }
 
diff --git a/ydb/core/testlib/ya.make b/ydb/core/testlib/ya.make
index 137fa829f3..fb0d89c9ce 100644
--- a/ydb/core/testlib/ya.make
+++ b/ydb/core/testlib/ya.make
@@ -13,7 +13,7 @@ SRCS(
     fake_coordinator.cpp
     fake_coordinator.h
     fake_scheme_shard.h
-    minikql_compile.h
+    minikql_compile.h 
     mock_pq_metacache.h
     tablet_flat_dummy.cpp
     tablet_helpers.cpp
diff --git a/ydb/core/tx/balance_coverage/balance_coverage_builder.cpp b/ydb/core/tx/balance_coverage/balance_coverage_builder.cpp
index abec7fc8af..fb29446aab 100644
--- a/ydb/core/tx/balance_coverage/balance_coverage_builder.cpp
+++ b/ydb/core/tx/balance_coverage/balance_coverage_builder.cpp
@@ -1,4 +1,4 @@
-#include "balance_coverage_builder.h"
+#include "balance_coverage_builder.h" 
 
 namespace NKikimr {
 
diff --git a/ydb/core/tx/coordinator/coordinator_impl.cpp b/ydb/core/tx/coordinator/coordinator_impl.cpp
index b4eeb184e2..b282058574 100644
--- a/ydb/core/tx/coordinator/coordinator_impl.cpp
+++ b/ydb/core/tx/coordinator/coordinator_impl.cpp
@@ -66,13 +66,13 @@ TTxCoordinator::TTxCoordinator(TTabletStorageInfo *info, const TActorId &tablet)
     Config.RapidSlotFlushSize = 1000; // todo: something meaningful
 
     MonCounters.CurrentTxInFly = 0;
-    TabletCountersPtr.Reset(new TProtobufTabletCounters<
-        ESimpleCounters_descriptor,
-        ECumulativeCounters_descriptor,
-        EPercentileCounters_descriptor,
-        ETxTypes_descriptor
-    >());
-    TabletCounters = TabletCountersPtr.Get();
+    TabletCountersPtr.Reset(new TProtobufTabletCounters< 
+        ESimpleCounters_descriptor, 
+        ECumulativeCounters_descriptor, 
+        EPercentileCounters_descriptor, 
+        ETxTypes_descriptor 
+    >()); 
+    TabletCounters = TabletCountersPtr.Get(); 
 }
 
 void TTxCoordinator::PlanTx(TAutoPtr<TTransactionProposal> &proposal, const TActorContext &ctx) {
@@ -307,7 +307,7 @@ void TTxCoordinator::Handle(TEvents::TEvPoisonPill::TPtr&, const TActorContext&
 
 void TTxCoordinator::OnActivateExecutor(const TActorContext &ctx) {
     TryInitMonCounters(ctx);
-    Executor()->RegisterExternalTabletCounters(TabletCountersPtr);
+    Executor()->RegisterExternalTabletCounters(TabletCountersPtr); 
     Execute(CreateTxSchema(), ctx);
 }
 
diff --git a/ydb/core/tx/coordinator/coordinator_impl.h b/ydb/core/tx/coordinator/coordinator_impl.h
index 39018aff1e..3a9bdb4133 100644
--- a/ydb/core/tx/coordinator/coordinator_impl.h
+++ b/ydb/core/tx/coordinator/coordinator_impl.h
@@ -407,8 +407,8 @@ private:
     TVolatileState VolatileState;
     TConfig Config;
     TCoordinatorMonCounters MonCounters;
-    TTabletCountersBase* TabletCounters;
-    TAutoPtr<TTabletCountersBase> TabletCountersPtr;
+    TTabletCountersBase* TabletCounters; 
+    TAutoPtr<TTabletCountersBase> TabletCountersPtr; 
 
     typedef THashMap<TTabletId, TMediator> TMediatorsIndex;
     TMediatorsIndex Mediators;
diff --git a/ydb/core/tx/datashard/datashard.cpp b/ydb/core/tx/datashard/datashard.cpp
index d86568b4a1..34e8243917 100644
--- a/ydb/core/tx/datashard/datashard.cpp
+++ b/ydb/core/tx/datashard/datashard.cpp
@@ -7,17 +7,17 @@
 #include <ydb/core/tablet/tablet_counters_protobuf.h>
 
 #include <library/cpp/monlib/service/pages/templates.h>
-
+ 
 #include <contrib/libs/apache/arrow/cpp/src/arrow/api.h>
 
-namespace NKikimr {
-
+namespace NKikimr { 
+ 
 IActor* CreateDataShard(const TActorId &tablet, TTabletStorageInfo *info) {
     return new NDataShard::TDataShard(tablet, info);
-}
-
+} 
+ 
 namespace NDataShard {
-
+ 
 using namespace NSchemeShard;
 using namespace NTabletFlatExecutor;
 
@@ -1330,15 +1330,15 @@ void TDataShard::Handle(TEvents::TEvGone::TPtr &ev) {
 }
 
 void TDataShard::Handle(TEvents::TEvPoisonPill::TPtr &ev, const TActorContext &ctx) {
-    LOG_DEBUG(ctx, NKikimrServices::TX_DATASHARD, "Handle TEvents::TEvPoisonPill");
+    LOG_DEBUG(ctx, NKikimrServices::TX_DATASHARD, "Handle TEvents::TEvPoisonPill"); 
     Y_UNUSED(ev);
     BecomeBroken(ctx);
-}
-
+} 
+ 
 void TDataShard::Handle(TEvDataShard::TEvGetShardState::TPtr &ev, const TActorContext &ctx) {
-    Execute(new TTxGetShardState(this, ev), ctx);
-}
-
+    Execute(new TTxGetShardState(this, ev), ctx); 
+} 
+ 
 void TDataShard::Handle(TEvDataShard::TEvSchemaChangedResult::TPtr& ev, const TActorContext& ctx) {
     LOG_DEBUG_S(ctx, NKikimrServices::TX_DATASHARD,
                 "Handle TEvSchemaChangedResult " << ev->Get()->Record.GetTxId()
@@ -1513,35 +1513,35 @@ void TDataShard::Handle(TEvDataShard::TEvProposeTransaction::TPtr &ev, const TAc
         return;
     }
 
-    switch (ev->Get()->GetTxKind()) {
-    case NKikimrTxDataShard::TX_KIND_DATA:
+    switch (ev->Get()->GetTxKind()) { 
+    case NKikimrTxDataShard::TX_KIND_DATA: 
     case NKikimrTxDataShard::TX_KIND_SCAN:
     case NKikimrTxDataShard::TX_KIND_SNAPSHOT:
     case NKikimrTxDataShard::TX_KIND_DISTRIBUTED_ERASE:
     case NKikimrTxDataShard::TX_KIND_COMMIT_WRITES:
         ProposeTransaction(std::move(ev), ctx);
-        return;
-    case NKikimrTxDataShard::TX_KIND_SCHEME:
+        return; 
+    case NKikimrTxDataShard::TX_KIND_SCHEME: 
         ProposeTransaction(std::move(ev), ctx);
-        return;
+        return; 
     default:
         break;
-    }
-
+    } 
+ 
     THolder<TEvDataShard::TEvProposeTransactionResult> result
         = THolder(new TEvDataShard::TEvProposeTransactionResult(ev->Get()->GetTxKind(),
                                                         TabletID(),
                                                         ev->Get()->GetTxId(),
                                                         NKikimrTxDataShard::TEvProposeTransactionResult::ERROR));
-    result->AddError(NKikimrTxDataShard::TError::BAD_TX_KIND, "Unknown kind of transaction");
-    ctx.Send(ev->Get()->GetSource(), result.Release());
+    result->AddError(NKikimrTxDataShard::TError::BAD_TX_KIND, "Unknown kind of transaction"); 
+    ctx.Send(ev->Get()->GetSource(), result.Release()); 
     IncCounter(COUNTER_PREPARE_ERROR);
     IncCounter(COUNTER_PREPARE_COMPLETE);
-
-    // TODO[serxa]: wake up! dont sleep! maybe...
-    //Executor()->WakeUp(ctx);
-}
-
+ 
+    // TODO[serxa]: wake up! dont sleep! maybe... 
+    //Executor()->WakeUp(ctx); 
+} 
+ 
 void TDataShard::Handle(TEvDataShard::TEvProposeTransactionAttach::TPtr &ev, const TActorContext &ctx) {
     const auto &record = ev->Get()->Record;
     const ui64 txId = record.GetTxId();
@@ -1631,21 +1631,21 @@ void TDataShard::Handle(TEvTxProcessing::TEvPlanStep::TPtr &ev, const TActorCont
         return;
     }
 
-    Execute(new TTxPlanStep(this, ev), ctx);
-}
-
+    Execute(new TTxPlanStep(this, ev), ctx); 
+} 
+ 
 void TDataShard::Handle(TEvTxProcessing::TEvReadSet::TPtr &ev, const TActorContext &ctx) {
-    ui64 sender = ev->Get()->Record.GetTabletSource();
-    ui64 dest = ev->Get()->Record.GetTabletDest();
-    ui64 producer = ev->Get()->Record.GetTabletProducer();
+    ui64 sender = ev->Get()->Record.GetTabletSource(); 
+    ui64 dest = ev->Get()->Record.GetTabletDest(); 
+    ui64 producer = ev->Get()->Record.GetTabletProducer(); 
     ui64 txId = ev->Get()->Record.GetTxId();
     LOG_DEBUG(ctx, NKikimrServices::TX_DATASHARD, "Receive RS at %" PRIu64 " source %" PRIu64 " dest %" PRIu64 " producer %" PRIu64 " txId %" PRIu64,
               TabletID(), sender, dest, producer, txId);
     IncCounter(COUNTER_READSET_RECEIVED_COUNT);
     IncCounter(COUNTER_READSET_RECEIVED_SIZE, ev->Get()->Record.GetReadSet().size());
-    Execute(new TTxReadSet(this, ev), ctx);
-}
-
+    Execute(new TTxReadSet(this, ev), ctx); 
+} 
+ 
 void TDataShard::Handle(TEvTxProcessing::TEvReadSetAck::TPtr &ev, const TActorContext &ctx) {
     OutReadSets.SaveAck(ctx, ev->Release());
 
@@ -1657,14 +1657,14 @@ void TDataShard::Handle(TEvTxProcessing::TEvReadSetAck::TPtr &ev, const TActorCo
     }
 
     CheckStateChange(ctx);
-}
-
+} 
+ 
 void TDataShard::Handle(TEvPrivate::TEvProgressTransaction::TPtr &ev, const TActorContext &ctx) {
     Y_UNUSED(ev);
     IncCounter(COUNTER_TX_PROGRESS_EV);
     ExecuteProgressTx(ctx);
-}
-
+} 
+ 
 void TDataShard::Handle(TEvPrivate::TEvDelayedProposeTransaction::TPtr &ev, const TActorContext &ctx) {
     Y_UNUSED(ev);
     IncCounter(COUNTER_PROPOSE_QUEUE_EV);
@@ -1697,10 +1697,10 @@ void TDataShard::Handle(TEvPrivate::TEvDelayedProposeTransaction::TPtr &ev, cons
 }
 
 void TDataShard::Handle(TEvPrivate::TEvProgressResendReadSet::TPtr &ev, const TActorContext &ctx) {
-    ResendReadSetQueue.Reset(ctx);
-    Execute(new TTxProgressResendRS(this, ev->Get()->Seqno), ctx);
-}
-
+    ResendReadSetQueue.Reset(ctx); 
+    Execute(new TTxProgressResendRS(this, ev->Get()->Seqno), ctx); 
+} 
+ 
 void TDataShard::Handle(TEvPrivate::TEvRegisterScanActor::TPtr &ev, const TActorContext &ctx) {
     ui64 txId = ev->Get()->TxId;
     auto op = Pipeline.FindOp(txId);
@@ -1752,7 +1752,7 @@ void TDataShard::Handle(TEvTabletPipe::TEvClientConnected::TPtr &ev, const TActo
         }
         return;
     }
-
+ 
     if (ev->Get()->Status != NKikimrProto::OK) {
         if (ev->Get()->ClientId == StateReportPipe) {
             StateReportPipe = TActorId();
@@ -1803,18 +1803,18 @@ void TDataShard::Handle(TEvTabletPipe::TEvClientConnected::TPtr &ev, const TActo
         }
     }
 
-    if (!PipeClientCache->OnConnect(ev)) {
+    if (!PipeClientCache->OnConnect(ev)) { 
         if (ev->Get()->Dead) {
             AckRSToDeletedTablet(ev->Get()->TabletId, ctx);
         } else {
             LOG_NOTICE(ctx, NKikimrServices::TX_DATASHARD, "Failed to connect to tablet %" PRIu64 " from tablet %" PRIu64, ev->Get()->TabletId, TabletID());
             RestartPipeRS(ev->Get()->TabletId, ctx);
         }
-    } else {
-        LOG_DEBUG(ctx, NKikimrServices::TX_DATASHARD, "Connected to tablet %" PRIu64 " from tablet %" PRIu64, ev->Get()->TabletId, TabletID());
-    }
-}
-
+    } else { 
+        LOG_DEBUG(ctx, NKikimrServices::TX_DATASHARD, "Connected to tablet %" PRIu64 " from tablet %" PRIu64, ev->Get()->TabletId, TabletID()); 
+    } 
+} 
+ 
 void TDataShard::Handle(TEvTabletPipe::TEvClientDestroyed::TPtr &ev, const TActorContext &ctx) {
     if (ev->Get()->ClientId == SchemeShardPipe) {
         if (!TransQueue.HasNotAckedSchemaTx()) {
@@ -1853,20 +1853,20 @@ void TDataShard::Handle(TEvTabletPipe::TEvClientDestroyed::TPtr &ev, const TActo
         ChangeSenderActivator.DoSend(ev->Get()->TabletId, ctx);
     }
 
-    LOG_DEBUG(ctx, NKikimrServices::TX_DATASHARD, "Client pipe to tablet %" PRIu64 " from %" PRIu64 " is reset", ev->Get()->TabletId, TabletID());
-    PipeClientCache->OnDisconnect(ev);
-    RestartPipeRS(ev->Get()->TabletId, ctx);
-}
-
+    LOG_DEBUG(ctx, NKikimrServices::TX_DATASHARD, "Client pipe to tablet %" PRIu64 " from %" PRIu64 " is reset", ev->Get()->TabletId, TabletID()); 
+    PipeClientCache->OnDisconnect(ev); 
+    RestartPipeRS(ev->Get()->TabletId, ctx); 
+} 
+ 
 void TDataShard::RestartPipeRS(ui64 tabletId, const TActorContext& ctx) {
-    for (auto seqno : ResendReadSetPipeTracker.FindTx(tabletId)) {
-        LOG_DEBUG(ctx, NKikimrServices::TX_DATASHARD, "Pipe reset to tablet %" PRIu64 " caused resend of readset %" PRIu64
-            " at tablet %" PRIu64, tabletId, seqno, TabletID());
-
-        ResendReadSetQueue.Progress(seqno, ctx);
-    }
-}
-
+    for (auto seqno : ResendReadSetPipeTracker.FindTx(tabletId)) { 
+        LOG_DEBUG(ctx, NKikimrServices::TX_DATASHARD, "Pipe reset to tablet %" PRIu64 " caused resend of readset %" PRIu64 
+            " at tablet %" PRIu64, tabletId, seqno, TabletID()); 
+ 
+        ResendReadSetQueue.Progress(seqno, ctx); 
+    } 
+} 
+ 
 void TDataShard::AckRSToDeletedTablet(ui64 tabletId, const TActorContext& ctx) {
     for (auto seqno : ResendReadSetPipeTracker.FindTx(tabletId)) {
         LOG_DEBUG(ctx, NKikimrServices::TX_DATASHARD, "Pipe reset to dead tablet %" PRIu64 " caused ack of readset %" PRIu64
@@ -1888,23 +1888,23 @@ void TDataShard::Handle(TEvTabletPipe::TEvServerConnected::TPtr &ev, const TActo
     Y_UNUSED(ev); Y_UNUSED(ctx);
     LOG_DEBUG(ctx, NKikimrServices::TX_DATASHARD, "Server connected at tablet %s %" PRIu64 ,
               Executor()->GetStats().IsFollower ? "follower" : "leader", ev->Get()->TabletId);
-}
-
+} 
+ 
 void TDataShard::Handle(TEvTabletPipe::TEvServerDisconnected::TPtr &ev, const TActorContext &ctx) {
     Y_UNUSED(ev); Y_UNUSED(ctx);
-}
-
+} 
+ 
 void TDataShard::Handle(TEvMediatorTimecast::TEvRegisterTabletResult::TPtr& ev, const TActorContext& ctx) {
     LOG_DEBUG_S(ctx, NKikimrServices::TX_DATASHARD,
                 "Got TEvMediatorTimecast::TEvRegisterTabletResult at " << TabletID()
                 << " time " << ev->Get()->Entry->Get(TabletID()));
     Y_VERIFY(ev->Get()->TabletId == TabletID());
-    MediatorTimeCastEntry = ev->Get()->Entry;
+    MediatorTimeCastEntry = ev->Get()->Entry; 
     Y_VERIFY(MediatorTimeCastEntry);
 
     Pipeline.ActivateWaitingTxOps(ctx);
-}
-
+} 
+ 
 void TDataShard::Handle(TEvMediatorTimecast::TEvNotifyPlanStep::TPtr& ev, const TActorContext& ctx) {
     const auto* msg = ev->Get();
     Y_VERIFY(msg->TabletId == TabletID());
@@ -2012,8 +2012,8 @@ void TDataShard::UpdateLagCounters(const TActorContext &ctx) {
 void TDataShard::FillSplitTrajectory(ui64 origin, NKikimrTx::TBalanceTrackList& tracks) {
     Y_UNUSED(origin);
     Y_UNUSED(tracks);
-}
-
+} 
+ 
 THolder<TEvTxProcessing::TEvReadSet>
 TDataShard::PrepareReadSet(ui64 step, ui64 txId, ui64 source, ui64 target,
                                   const TString& body, ui64 seqno)
@@ -2032,13 +2032,13 @@ void TDataShard::SendReadSet(const TActorContext& ctx, ui64 step,
                 "Send RS at " << TabletID() << " from " << source << " to " << target << " txId " << txId);
 
     auto ev = PrepareReadSet(step, txId, source, target, body, seqno);
-
+ 
     IncCounter(COUNTER_READSET_SENT_COUNT);
     IncCounter(COUNTER_READSET_SENT_SIZE, body.size());
 
     PipeClientCache->Send(ctx, target, ev.Release());
-}
-
+} 
+ 
 void TDataShard::SendReadSets(const TActorContext& ctx,
                                      TVector<THolder<TEvTxProcessing::TEvReadSet>> &&readsets)
 {
diff --git a/ydb/core/tx/datashard/datashard.h b/ydb/core/tx/datashard/datashard.h
index 5a93c03502..62c1ad0527 100644
--- a/ydb/core/tx/datashard/datashard.h
+++ b/ydb/core/tx/datashard/datashard.h
@@ -1,4 +1,4 @@
-#pragma once
+#pragma once 
 
 #include "datashard_s3_upload.h"
 
@@ -13,27 +13,27 @@
 #include <ydb/core/tablet_flat/flat_row_versions.h>
 
 #include <library/cpp/time_provider/time_provider.h>
-
+ 
 namespace arrow {
 
 class RecordBatch;
 
 }
 
-namespace NKikimr {
-
+namespace NKikimr { 
+ 
 namespace NDataShard {
     using TShardState = NKikimrTxDataShard::EDatashardState;
-
-    struct TTxFlags {
+ 
+    struct TTxFlags { 
         enum Flags : ui64 {
             ////////////////////////////
             // Public operation flags //
             ////////////////////////////
-            Default = 0,
-            Dirty = 0x01,
-            DenyOnlineIfSnapshotNotReady = 0x02,
-            ForceOnline = 0x04,
+            Default = 0, 
+            Dirty = 0x01, 
+            DenyOnlineIfSnapshotNotReady = 0x02, 
+            ForceOnline = 0x04, 
             Immediate = 0x08,
 
             PublicFlagsMask = 0x000000000000FFFF,
@@ -123,8 +123,8 @@ namespace NDataShard {
             PreservedPrivateFlagsMask = ReadOnly | ProposeBlocker | NeedDiagnostics | GlobalReader
                 | GlobalWriter | KqpDataTransaction | KqpScanTransaction
                 | BlockingImmediateOps | BlockingImmediateWrites,
-        };
-    };
+        }; 
+    }; 
 
     // Old datashard uses Uint32 column type for flags in local database.
     static_assert(TTxFlags::PreservedPrivateFlagsMask <= Max<ui64>());
@@ -167,22 +167,22 @@ namespace NDataShard {
         }
     };
 
-}
-
+} 
+ 
 // legacy
 namespace NTxDataShard {
     using NDataShard::TShardState;
     using NDataShard::TTxFlags;
 }
 
-struct TEvDataShard {
-    enum EEv {
-        EvProposeTransaction = EventSpaceBegin(TKikimrEvents::ES_TX_DATASHARD),
-        EvCancelTransactionProposal,
+struct TEvDataShard { 
+    enum EEv { 
+        EvProposeTransaction = EventSpaceBegin(TKikimrEvents::ES_TX_DATASHARD), 
+        EvCancelTransactionProposal, 
         EvApplyReplicationChanges,
         EvGetReplicationSourceOffsets,
-
-        EvProposeTransactionResult = EvProposeTransaction + 1 * 512,
+ 
+        EvProposeTransactionResult = EvProposeTransaction + 1 * 512, 
         EvProposeTransactionRestart,
         EvProposeTransactionAttach,
         EvProposeTransactionAttachResult,
@@ -190,25 +190,25 @@ struct TEvDataShard {
         EvReplicationSourceOffsets,
         EvReplicationSourceOffsetsAck,
         EvReplicationSourceOffsetsCancel,
-
-        EvInitDataShard = EvProposeTransaction + 4 * 512,
-        EvGetShardState,
-        EvReadOperationHistogram,
-        EvUpdateConfig,
+ 
+        EvInitDataShard = EvProposeTransaction + 4 * 512, 
+        EvGetShardState, 
+        EvReadOperationHistogram, 
+        EvUpdateConfig, 
         EvSchemaChanged,
         EvStateChanged,
         EvCancelBackup,
         EvMigrateSchemeShardRequest,
         EvMigrateSchemeShardResponse,
         EvCancelRestore,
-
-        EvInitDataShardResult = EvProposeTransaction + 5 * 512,
-        EvGetShardStateResult,
-        EvReadOperationHistogramResult,
-        EvUpdateConfigResult,
+ 
+        EvInitDataShardResult = EvProposeTransaction + 5 * 512, 
+        EvGetShardStateResult, 
+        EvReadOperationHistogramResult, 
+        EvUpdateConfigResult, 
         EvSchemaChangedResult,
         EvStateChangedResult,
-
+ 
         EvReturnBorrowedPart = 6 * 512,
         EvReturnBorrowedPartAck,
 
@@ -298,47 +298,47 @@ struct TEvDataShard {
         EvReadAck,
         EvReadCancel,
 
-        EvEnd
-    };
-
-    static_assert(EvEnd < EventSpaceEnd(TKikimrEvents::ES_TX_DATASHARD), "expect EvEnd < EventSpaceEnd(TKikimrEvents::ES_TX_DATASHARD)");
-    struct TEvGetShardState : public TEventPB<TEvGetShardState, NKikimrTxDataShard::TEvGetShardState,
-        TEvDataShard::EvGetShardState> {
-        TEvGetShardState()
-        {
-        }
-
+        EvEnd 
+    }; 
+ 
+    static_assert(EvEnd < EventSpaceEnd(TKikimrEvents::ES_TX_DATASHARD), "expect EvEnd < EventSpaceEnd(TKikimrEvents::ES_TX_DATASHARD)"); 
+    struct TEvGetShardState : public TEventPB<TEvGetShardState, NKikimrTxDataShard::TEvGetShardState, 
+        TEvDataShard::EvGetShardState> { 
+        TEvGetShardState() 
+        { 
+        } 
+ 
         TEvGetShardState(const TActorId& source)
-        {
+        { 
             ActorIdToProto(source, Record.MutableSource());
-        }
-
+        } 
+ 
         TActorId GetSource() const {
             return ActorIdFromProto(Record.GetSource());
-        }
-    };
-
-    struct TEvGetShardStateResult : public TEventPB<TEvGetShardStateResult, NKikimrTxDataShard::TEvGetShardStateResult,
-        TEvDataShard::EvGetShardStateResult> {
-        TEvGetShardStateResult()
-        {
-        }
-
-        TEvGetShardStateResult(ui64 origin, ui32 state)
-        {
-            Record.SetOrigin(origin);
-            Record.SetState(state);
-        }
-
-        ui64 GetOrigin() const {
-            return Record.GetOrigin();
-        }
-
-        ui32 GetState() const {
-            return Record.GetState();
-        }
-    };
-
+        } 
+    }; 
+ 
+    struct TEvGetShardStateResult : public TEventPB<TEvGetShardStateResult, NKikimrTxDataShard::TEvGetShardStateResult, 
+        TEvDataShard::EvGetShardStateResult> { 
+        TEvGetShardStateResult() 
+        { 
+        } 
+ 
+        TEvGetShardStateResult(ui64 origin, ui32 state) 
+        { 
+            Record.SetOrigin(origin); 
+            Record.SetState(state); 
+        } 
+ 
+        ui64 GetOrigin() const { 
+            return Record.GetOrigin(); 
+        } 
+ 
+        ui32 GetState() const { 
+            return Record.GetState(); 
+        } 
+    }; 
+ 
     struct TEvSchemaChanged : public TEventPB<TEvSchemaChanged, NKikimrTxDataShard::TEvSchemaChanged,
                                         TEvDataShard::EvSchemaChanged> {
         TEvSchemaChanged()
@@ -399,23 +399,23 @@ struct TEvDataShard {
         }
     };
 
-    struct TEvProposeTransaction : public TEventPB<TEvProposeTransaction, NKikimrTxDataShard::TEvProposeTransaction,
-        TEvDataShard::EvProposeTransaction> {
-        TEvProposeTransaction()
-        {
-        }
-
+    struct TEvProposeTransaction : public TEventPB<TEvProposeTransaction, NKikimrTxDataShard::TEvProposeTransaction, 
+        TEvDataShard::EvProposeTransaction> { 
+        TEvProposeTransaction() 
+        { 
+        } 
+ 
         TEvProposeTransaction(NKikimrTxDataShard::ETransactionKind txKind, const TActorId& source, ui64 txId,
             const TStringBuf& txBody, ui32 flags = NDataShard::TTxFlags::Default)
-        {
-            Record.SetTxKind(txKind);
+        { 
+            Record.SetTxKind(txKind); 
             ActorIdToProto(source, Record.MutableSource());
-            Record.SetTxId(txId);
+            Record.SetTxId(txId); 
             Record.SetExecLevel(0);
             Record.SetTxBody(txBody.data(), txBody.size());
-            Record.SetFlags(flags);
-        }
-
+            Record.SetFlags(flags); 
+        } 
+ 
         TEvProposeTransaction(NKikimrTxDataShard::ETransactionKind txKind, const TActorId& source, ui64 txId,
             const TStringBuf& txBody, ui64 snapshotStep, ui64 snapshotTxId, ui32 flags = NDataShard::TTxFlags::Default)
             : TEvProposeTransaction(txKind, source, txId, txBody, flags)
@@ -449,51 +449,51 @@ struct TEvDataShard {
             }
         }
 
-        NKikimrTxDataShard::ETransactionKind GetTxKind() const {
-            return Record.GetTxKind();
-        }
-
+        NKikimrTxDataShard::ETransactionKind GetTxKind() const { 
+            return Record.GetTxKind(); 
+        } 
+ 
         TActorId GetSource() const {
             return ActorIdFromProto(Record.GetSource());
-        }
-
-        ui64 GetTxId() const {
-            return Record.GetTxId();
-        }
-
+        } 
+ 
+        ui64 GetTxId() const { 
+            return Record.GetTxId(); 
+        } 
+ 
         ui32 GetFlags() const {
             return Record.GetFlags();
-        }
-
-        TStringBuf GetTxBody() const {
-            return Record.GetTxBody();
-        }
-    };
-
-    struct TEvCancelTransactionProposal : public TEventPB<TEvCancelTransactionProposal, NKikimrTxDataShard::TEvCancelTransactionProposal, TEvDataShard::EvCancelTransactionProposal> {
-        TEvCancelTransactionProposal()
-        {}
-
-        TEvCancelTransactionProposal(ui64 txId)
-        {
-            Record.SetTxId(txId);
-        }
-    };
-
-    struct TEvProposeTransactionResult : public TEventPB<TEvProposeTransactionResult, NKikimrTxDataShard::TEvProposeTransactionResult,
-        TEvDataShard::EvProposeTransactionResult> {
-
+        } 
+ 
+        TStringBuf GetTxBody() const { 
+            return Record.GetTxBody(); 
+        } 
+    }; 
+ 
+    struct TEvCancelTransactionProposal : public TEventPB<TEvCancelTransactionProposal, NKikimrTxDataShard::TEvCancelTransactionProposal, TEvDataShard::EvCancelTransactionProposal> { 
+        TEvCancelTransactionProposal() 
+        {} 
+ 
+        TEvCancelTransactionProposal(ui64 txId) 
+        { 
+            Record.SetTxId(txId); 
+        } 
+    }; 
+ 
+    struct TEvProposeTransactionResult : public TEventPB<TEvProposeTransactionResult, NKikimrTxDataShard::TEvProposeTransactionResult, 
+        TEvDataShard::EvProposeTransactionResult> { 
+ 
         TEvProposeTransactionResult() = default;
 
-        TEvProposeTransactionResult(NKikimrTxDataShard::ETransactionKind txKind, ui64 origin, ui64 txId,
-            NKikimrTxDataShard::TEvProposeTransactionResult::EStatus status)
-        {
-            Record.SetTxKind(txKind);
-            Record.SetOrigin(origin);
-            Record.SetTxId(txId);
-            Record.SetStatus(status);
-        }
-
+        TEvProposeTransactionResult(NKikimrTxDataShard::ETransactionKind txKind, ui64 origin, ui64 txId, 
+            NKikimrTxDataShard::TEvProposeTransactionResult::EStatus status) 
+        { 
+            Record.SetTxKind(txKind); 
+            Record.SetOrigin(origin); 
+            Record.SetTxId(txId); 
+            Record.SetStatus(status); 
+        } 
+ 
         bool IsPrepared() const { return GetStatus() == NKikimrTxDataShard::TEvProposeTransactionResult::PREPARED; }
         bool IsComplete() const { return GetStatus() == NKikimrTxDataShard::TEvProposeTransactionResult::COMPLETE; }
         bool IsTryLater() const { return GetStatus() == NKikimrTxDataShard::TEvProposeTransactionResult::TRY_LATER; }
@@ -530,10 +530,10 @@ struct TEvDataShard {
             Record.SetPrepareArriveTime(RequestStartTime.MicroSeconds());
         }
 
-        void SetTxResult(const TStringBuf& txResult) {
+        void SetTxResult(const TStringBuf& txResult) { 
             Record.SetTxResult(txResult.data(), txResult.size());
-        }
-
+        } 
+ 
         void SetExecutionError(const NKikimrTxDataShard::TError::EKind& error, const TStringBuf& message) {
             switch (error) {
                 case NKikimrTxDataShard::TError::REPLY_SIZE_EXECEEDED:
@@ -563,11 +563,11 @@ struct TEvDataShard {
             AddError(error, message);
         }
 
-        void SetStepOrderId(const std::pair<ui64, ui64>& stepOrderId) {
-            Record.SetStep(stepOrderId.first);
-            Record.SetOrderId(stepOrderId.second);
-        }
-
+        void SetStepOrderId(const std::pair<ui64, ui64>& stepOrderId) { 
+            Record.SetStep(stepOrderId.first); 
+            Record.SetOrderId(stepOrderId.second); 
+        } 
+ 
         void AddTxLock(ui64 lockId, ui64 shard, ui32 generation, ui64 counter, ui64 ssId, ui64 pathId) {
             auto entry = Record.AddTxLocks();
             entry->SetLockId(lockId);
@@ -578,34 +578,34 @@ struct TEvDataShard {
             entry->SetPathId(pathId);
         }
 
-        NKikimrTxDataShard::ETransactionKind GetTxKind() const {
-            return Record.GetTxKind();
-        }
-
-        ui64 GetOrigin() const {
-            return Record.GetOrigin();
-        }
-
-        ui64 GetTxId() const {
-            return Record.GetTxId();
-        }
-
-        NKikimrTxDataShard::TEvProposeTransactionResult::EStatus GetStatus() const {
-            return Record.GetStatus();
-        }
-
-        bool HasTxResult() const {
-            return Record.HasTxResult();
-        }
-
-        TStringBuf GetTxResult() const {
-            return Record.GetTxResult();
-        }
-
-        std::pair<ui64, ui64> GetStepOrderId() const {
-            return std::make_pair(Record.GetStep(), Record.GetOrderId());
-        }
-
+        NKikimrTxDataShard::ETransactionKind GetTxKind() const { 
+            return Record.GetTxKind(); 
+        } 
+ 
+        ui64 GetOrigin() const { 
+            return Record.GetOrigin(); 
+        } 
+ 
+        ui64 GetTxId() const { 
+            return Record.GetTxId(); 
+        } 
+ 
+        NKikimrTxDataShard::TEvProposeTransactionResult::EStatus GetStatus() const { 
+            return Record.GetStatus(); 
+        } 
+ 
+        bool HasTxResult() const { 
+            return Record.HasTxResult(); 
+        } 
+ 
+        TStringBuf GetTxResult() const { 
+            return Record.GetTxResult(); 
+        } 
+ 
+        std::pair<ui64, ui64> GetStepOrderId() const { 
+            return std::make_pair(Record.GetStep(), Record.GetOrderId()); 
+        } 
+ 
         TString GetError() const {
             if (Record.ErrorSize() > 0) {
                 TString result;
@@ -622,22 +622,22 @@ struct TEvDataShard {
             }
         }
 
-        void AddError(NKikimrTxDataShard::TError::EKind kind, const TStringBuf& reason, const TStringBuf& keyBuffer = TStringBuf()) {
-            auto error = Record.MutableError()->Add();
-            error->SetKind(kind);
-            if (reason) {
+        void AddError(NKikimrTxDataShard::TError::EKind kind, const TStringBuf& reason, const TStringBuf& keyBuffer = TStringBuf()) { 
+            auto error = Record.MutableError()->Add(); 
+            error->SetKind(kind); 
+            if (reason) { 
                 error->SetReason(reason.data(), reason.size());
-            }
-
-            if (keyBuffer) {
+            } 
+ 
+            if (keyBuffer) { 
                 error->SetKey(keyBuffer.data(), keyBuffer.size());
-            }
-        }
+            } 
+        } 
 
     private:
         bool ForceOnline = false;
         bool ForceDirty = false;
-    };
+    }; 
 
     struct TEvProposeTransactionRestart : public TEventPB<TEvProposeTransactionRestart, NKikimrTxDataShard::TEvProposeTransactionRestart, TEvDataShard::EvProposeTransactionRestart> {
         TEvProposeTransactionRestart() = default;
@@ -1539,12 +1539,12 @@ struct TEvDataShard {
         }
     };
 
-};
-
+}; 
+ 
 IActor* CreateDataShard(const TActorId &tablet, TTabletStorageInfo *info);
-
-}
-
+ 
+} 
+ 
 inline TString DatashardStateName(ui32 state) {
     NKikimrTxDataShard::EDatashardState s = (NKikimrTxDataShard::EDatashardState)state;
     return NKikimrTxDataShard::EDatashardState_Name(s);
diff --git a/ydb/core/tx/datashard/datashard__engine_host.cpp b/ydb/core/tx/datashard/datashard__engine_host.cpp
index 876c337093..768075f3fc 100644
--- a/ydb/core/tx/datashard/datashard__engine_host.cpp
+++ b/ydb/core/tx/datashard/datashard__engine_host.cpp
@@ -12,17 +12,17 @@
 #include <ydb/library/yql/minikql/mkql_function_registry.h>
 #include <ydb/library/yql/minikql/mkql_string_util.h>
 #include <ydb/library/yql/minikql/mkql_node_cast.h>
-
+ 
 #include <library/cpp/actors/core/log.h>
 
 #include <util/generic/cast.h>
 
-namespace NKikimr {
+namespace NKikimr { 
 namespace NDataShard {
-
-using namespace NMiniKQL;
-using namespace NTabletFlatExecutor;
-
+ 
+using namespace NMiniKQL; 
+using namespace NTabletFlatExecutor; 
+ 
 namespace {
 
 NUdf::TUnboxedValue CreateRow(const TVector<TCell>& inRow,
@@ -279,19 +279,19 @@ TIntrusivePtr<TThrRefBase> InitDataShardSysTables(TDataShard* self) {
 
 ///
 class TDataShardEngineHost : public TEngineHost {
-public:
+public: 
     TDataShardEngineHost(TDataShard* self, NTable::TDatabase& db, TEngineHostCounters& counters, ui64& lockTxId, TInstant now)
         : TEngineHost(db, counters,
             TEngineHostSettings(self->TabletID(),
                 (self->State == TShardState::Readonly || self->State == TShardState::Frozen),
                 self->ByKeyFilterDisabled(),
                 self->GetKeyAccessSampler()))
-        , Self(self)
+        , Self(self) 
         , DB(db)
         , LockTxId(lockTxId)
         , Now(now)
     {}
-
+ 
     void SetWriteVersion(TRowVersion writeVersion) {
         WriteVersion = writeVersion;
     }
@@ -361,7 +361,7 @@ public:
     NUdf::TUnboxedValue SelectRow(const TTableId& tableId, const TArrayRef<const TCell>& row,
         TStructLiteral* columnIds, TOptionalType* returnType, const TReadTarget& readTarget,
         const THolderFactory& holderFactory) override
-    {
+    { 
         if (TSysTables::IsSystemTable(tableId)) {
             return DataShardSysTable(tableId).SelectRow(row, columnIds, returnType, readTarget, holderFactory);
         }
@@ -370,13 +370,13 @@ public:
 
         Self->SetTableAccessTime(tableId, Now);
         return TEngineHost::SelectRow(tableId, row, columnIds, returnType, readTarget, holderFactory);
-    }
-
+    } 
+ 
     NUdf::TUnboxedValue SelectRange(const TTableId& tableId, const TTableRange& range,
         TStructLiteral* columnIds,  TListLiteral* skipNullKeys, TStructType* returnType,
         const TReadTarget& readTarget, ui64 itemsLimit, ui64 bytesLimit, bool reverse,
         std::pair<const TListLiteral*, const TListLiteral*> forbidNullArgs, const THolderFactory& holderFactory) override
-    {
+    { 
         Y_VERIFY(!TSysTables::IsSystemTable(tableId), "SelectRange no system table is not supported");
 
         Self->SysLocksTable().SetLock(tableId, range, LockTxId);
@@ -384,8 +384,8 @@ public:
         Self->SetTableAccessTime(tableId, Now);
         return TEngineHost::SelectRange(tableId, range, columnIds, skipNullKeys, returnType, readTarget,
             itemsLimit, bytesLimit, reverse, forbidNullArgs, holderFactory);
-    }
-
+    } 
+ 
     void UpdateRow(const TTableId& tableId, const TArrayRef<const TCell>& row, const TArrayRef<const TUpdateCommand>& commands) override {
         if (TSysTables::IsSystemTable(tableId)) {
             DataShardSysTable(tableId).UpdateRow(row, commands);
@@ -436,8 +436,8 @@ public:
         } else {
             TEngineHost::UpdateRow(tableId, row, commands);
         }
-    }
-
+    } 
+ 
     void EraseRow(const TTableId& tableId, const TArrayRef<const TCell>& row) override {
         if (TSysTables::IsSystemTable(tableId)) {
             DataShardSysTable(tableId).EraseRow(row);
@@ -447,10 +447,10 @@ public:
         Self->SysLocksTable().BreakLock(tableId, row);
 
         Self->SetTableUpdateTime(tableId, Now);
-        TEngineHost::EraseRow(tableId, row);
-    }
-
-    // Returns whether row belong this shard.
+        TEngineHost::EraseRow(tableId, row); 
+    } 
+ 
+    // Returns whether row belong this shard. 
     bool IsMyKey(const TTableId& tableId, const TArrayRef<const TCell>& row) const override {
         if (TSysTables::IsSystemTable(tableId))
             return DataShardSysTable(tableId).IsMyKey(row);
@@ -464,17 +464,17 @@ public:
         // Check row against range
         const TUserTable& info = *iter->second;
         return (ComparePointAndRange(row, info.GetTableRange(), info.KeyColumnTypes, info.KeyColumnTypes) == 0);
-    }
-
-    bool IsPathErased(const TTableId& tableId) const override {
+    } 
+ 
+    bool IsPathErased(const TTableId& tableId) const override { 
         if (TSysTables::IsSystemTable(tableId))
             return false;
         return TDataShardEngineHost::LocalTableId(tableId) == 0;
-    }
-
-    ui64 LocalTableId(const TTableId &tableId) const override {
+    } 
+ 
+    ui64 LocalTableId(const TTableId &tableId) const override { 
         return Self->GetLocalTableId(tableId);
-    }
+    } 
 
     ui64 GetTableSchemaVersion(const TTableId& tableId) const override {
         if (TSysTables::IsSystemTable(tableId))
@@ -491,7 +491,7 @@ public:
         }
     }
 
-private:
+private: 
     const TDataShardSysTable& DataShardSysTable(const TTableId& tableId) const {
         return static_cast<const TDataShardSysTables *>(Self->GetDataShardSysTables())->Get(tableId);
     }
@@ -504,8 +504,8 @@ private:
     TRowVersion WriteVersion = TRowVersion::Max();
     TRowVersion ReadVersion = TRowVersion::Min();
     mutable THashMap<TTableId, THolder<IChangeCollector>> ChangeCollectors;
-};
-
+}; 
+ 
 //
 
 TEngineBay::TEngineBay(TDataShard * self, TTransactionContext& txc, const TActorContext& ctx,
diff --git a/ydb/core/tx/datashard/datashard__get_state_tx.cpp b/ydb/core/tx/datashard/datashard__get_state_tx.cpp
index 552d27fd64..13878482d9 100644
--- a/ydb/core/tx/datashard/datashard__get_state_tx.cpp
+++ b/ydb/core/tx/datashard/datashard__get_state_tx.cpp
@@ -1,27 +1,27 @@
 #include "datashard_txs.h"
-
-namespace NKikimr {
+ 
+namespace NKikimr { 
 namespace NDataShard {
-
-using namespace NTabletFlatExecutor;
-
+ 
+using namespace NTabletFlatExecutor; 
+ 
 TDataShard::TTxGetShardState::TTxGetShardState(TDataShard* ds, TEvDataShard::TEvGetShardState::TPtr ev)
-    : TBase(ds)
-    , Ev(ev)
-{}
-
+    : TBase(ds) 
+    , Ev(ev) 
+{} 
+ 
 bool TDataShard::TTxGetShardState::Execute(TTransactionContext& txc, const TActorContext& ctx) {
     Y_UNUSED(txc);
     Y_UNUSED(ctx);
-
+ 
     Result = MakeHolder<TEvDataShard::TEvGetShardStateResult>(Self->TabletID(), Self->State);
     if (Self->Pipeline.HasDrop())
         Result->Record.SetDropTxId(Self->Pipeline.CurrentSchemaTxId());
-    return true;
-}
-
+    return true; 
+} 
+ 
 void TDataShard::TTxGetShardState::Complete(const TActorContext& ctx) {
     ctx.Send(Ev->Get()->GetSource(), Result.Release());
-}
-
-}}
+} 
+ 
+}} 
diff --git a/ydb/core/tx/datashard/datashard__init.cpp b/ydb/core/tx/datashard/datashard__init.cpp
index dc12c49959..ce50054dd4 100644
--- a/ydb/core/tx/datashard/datashard__init.cpp
+++ b/ydb/core/tx/datashard/datashard__init.cpp
@@ -3,21 +3,21 @@
 #include <ydb/core/base/tx_processing.h>
 #include <ydb/core/tablet/tablet_exception.h>
 #include <ydb/core/util/pb.h>
+ 
 
-
-namespace NKikimr {
+namespace NKikimr { 
 namespace NDataShard {
-
-using namespace NTabletFlatExecutor;
-
+ 
+using namespace NTabletFlatExecutor; 
+ 
 TDataShard::TTxInit::TTxInit(TDataShard* ds)
-    : TBase(ds)
-{}
-
+    : TBase(ds) 
+{} 
+ 
 bool TDataShard::TTxInit::Execute(TTransactionContext& txc, const TActorContext& ctx) {
     LOG_DEBUG_S(ctx, NKikimrServices::TX_DATASHARD, "TDataShard::TTxInit::Execute");
-
-    try {
+ 
+    try { 
         Self->State = TShardState::Unknown;
         Self->LastLocalTid = Schema::MinLocalTid;
         Self->LastSeqno = 1;
@@ -41,19 +41,19 @@ bool TDataShard::TTxInit::Execute(TTransactionContext& txc, const TActorContext&
         }
 
         return done;
-    } catch (const TNotReadyTabletException &) {
-        return false;
-    } catch (const TSchemeErrorTabletException &ex) {
+    } catch (const TNotReadyTabletException &) { 
+        return false; 
+    } catch (const TSchemeErrorTabletException &ex) { 
         Y_UNUSED(ex);
         Y_FAIL();
-    } catch (...) {
+    } catch (...) { 
         Y_FAIL("there must be no leaked exceptions");
-    }
-}
-
+    } 
+} 
+ 
 void TDataShard::TTxInit::Complete(const TActorContext &ctx) {
     LOG_DEBUG(ctx, NKikimrServices::TX_DATASHARD, "TDataShard::TTxInit::Complete");
-
+ 
     // Start MakeSnapshot() if we started in SplitSrcMakeSnapshot state
     if (Self->State == TShardState::SplitSrcMakeSnapshot) {
         Self->Execute(Self->CreateTxStartSplit(), ctx);
@@ -69,7 +69,7 @@ void TDataShard::TTxInit::Complete(const TActorContext &ctx) {
         Self->Execute(Self->CreateTxInitSchemaDefaults(), ctx);
     }
 
-    Self->SwitchToWork(ctx);
+    Self->SwitchToWork(ctx); 
     Self->SendRegistrationRequestTimeCast(ctx);
 
     // InReadSets table might have a lot of garbage due to old bug.
@@ -120,18 +120,18 @@ void TDataShard::TTxInit::Complete(const TActorContext &ctx) {
 
     // Switch mvcc state if needed
     Self->CheckMvccStateChangeCanStart(ctx);
-}
-
+} 
+ 
 #define LOAD_SYS_UI64(db, row, value) if (!TDataShard::SysGetUi64(db, row, value)) return false;
 #define LOAD_SYS_BYTES(db, row, value) if (!TDataShard::SysGetBytes(db, row, value)) return false;
 #define LOAD_SYS_BOOL(db, row, value) if (!TDataShard::SysGetBool(db, row, value)) return false;
-
+ 
 bool TDataShard::TTxInit::ReadEverything(TTransactionContext &txc) {
-    // Note that we should not store any data directly into Self until NoMoreReads() is called
-    // But it is ok for initialization, as long as ALL FOLLOWING ACTIONS ARE IDEMPOTENT
-
-    NIceDb::TNiceDb db(txc.DB);
-
+    // Note that we should not store any data directly into Self until NoMoreReads() is called 
+    // But it is ok for initialization, as long as ALL FOLLOWING ACTIONS ARE IDEMPOTENT 
+ 
+    NIceDb::TNiceDb db(txc.DB); 
+ 
     {
         bool ready = true;
 
@@ -171,7 +171,7 @@ bool TDataShard::TTxInit::ReadEverything(TTransactionContext &txc) {
 #undef PRECHARGE_SYS_TABLE
     }
 
-    // Reads from Sys table
+    // Reads from Sys table 
     LOAD_SYS_UI64(db, Schema::Sys_State, Self->State);
     LOAD_SYS_UI64(db, Schema::Sys_LastLocalTid, Self->LastLocalTid);
     LOAD_SYS_UI64(db, Schema::Sys_LastSeqno, Self->LastSeqno);
@@ -207,26 +207,26 @@ bool TDataShard::TTxInit::ReadEverything(TTransactionContext &txc) {
 
     if (!Self->Pipeline.Load(db))
         return false;
-
-    { // Reads user tables metadata
+ 
+    { // Reads user tables metadata 
         Self->TableInfos.clear(); // For idempotency
         auto rowset = db.Table<Schema::UserTables>().GreaterOrEqual(0).Select();  // TODO[serxa]: this should be Range() but it is not working right now
-        if (!rowset.IsReady())
-            return false;
-        while (!rowset.EndOfSet()) {
-            ui64 tableId = rowset.GetValue<Schema::UserTables::Tid>();
-            ui32 localTid = rowset.GetValue<Schema::UserTables::LocalTid>();
+        if (!rowset.IsReady()) 
+            return false; 
+        while (!rowset.EndOfSet()) { 
+            ui64 tableId = rowset.GetValue<Schema::UserTables::Tid>(); 
+            ui32 localTid = rowset.GetValue<Schema::UserTables::LocalTid>(); 
             ui32 shadowTid = rowset.GetValueOrDefault<Schema::UserTables::ShadowTid>();
             TString schema = rowset.GetValue<Schema::UserTables::Schema>();
             NKikimrSchemeOp::TTableDescription descr;
             bool parseOk = ParseFromStringNoSizeLimit(descr, schema);
             Y_VERIFY(parseOk);
             Self->AddUserTable(TPathId(Self->GetPathOwnerId(), tableId), new TUserTable(localTid, descr, shadowTid));
-            if (!rowset.Next())
-                return false;
-        }
-    }
-
+            if (!rowset.Next()) 
+                return false; 
+        } 
+    } 
+ 
     if (Self->State != TShardState::Offline && txc.DB.GetScheme().GetTableInfo(Schema::UserTablesStats::TableId)) {
         // Reads user tables persistent stats
         auto rowset = db.Table<Schema::UserTablesStats>().GreaterOrEqual(0).Select();
@@ -250,7 +250,7 @@ bool TDataShard::TTxInit::ReadEverything(TTransactionContext &txc) {
         auto rowset = db.Table<Schema::SplitSrcSnapshots>().GreaterOrEqual(0).Select();
         if (!rowset.IsReady())
             return false;
-
+ 
         while (!rowset.EndOfSet()) {
             ui64 dstTablet = rowset.GetValue<Schema::SplitSrcSnapshots::DstTabletId>();
             TString snapBody = rowset.GetValue<Schema::SplitSrcSnapshots::SnapshotMeta>();
@@ -365,8 +365,8 @@ bool TDataShard::TTxInit::ReadEverything(TTransactionContext &txc) {
 
     // Load unsent ReadSets
     if (!Self->OutReadSets.LoadReadSets(db))
-        return false;
-
+        return false; 
+ 
     // TODO: properly check shard state
     if (Self->State != TShardState::Offline && txc.DB.GetScheme().GetTableInfo(Schema::TxMain::TableId)) {
         if (!Self->TransQueue.Load(db))
@@ -382,7 +382,7 @@ bool TDataShard::TTxInit::ReadEverything(TTransactionContext &txc) {
             Self->Pipeline.AddCandidateUnit(EExecutionUnitKind::PlanQueue);
         // TODO: add propose blockers to blockers list
     }
-
+ 
     if (Self->State != TShardState::Offline && txc.DB.GetScheme().GetTableInfo(Schema::Snapshots::TableId)) {
         if (!Self->SnapshotManager.Reload(db))
             return false;
@@ -479,9 +479,9 @@ bool TDataShard::TTxInit::ReadEverything(TTransactionContext &txc) {
         }
     }
 
-    return true;
-}
-
+    return true; 
+} 
+ 
 /// Creates and updates schema at tablet boot time
 class TDataShard::TTxInitSchema : public TTransactionBase<TDataShard> {
 public:
@@ -721,4 +721,4 @@ bool TDataShard::SyncSchemeOnFollower(TTransactionContext &txc, const TActorCont
     return true;
 }
 
-}}
+}} 
diff --git a/ydb/core/tx/datashard/datashard__plan_step.cpp b/ydb/core/tx/datashard/datashard__plan_step.cpp
index 6399598865..53702efa2b 100644
--- a/ydb/core/tx/datashard/datashard__plan_step.cpp
+++ b/ydb/core/tx/datashard/datashard__plan_step.cpp
@@ -1,30 +1,30 @@
 #include "datashard_txs.h"
-
+ 
 #include <util/string/vector.h>
 
-namespace NKikimr {
+namespace NKikimr { 
 namespace NDataShard {
-
-using namespace NTabletFlatExecutor;
-
+ 
+using namespace NTabletFlatExecutor; 
+ 
 TDataShard::TTxPlanStep::TTxPlanStep(TDataShard *self, TEvTxProcessing::TEvPlanStep::TPtr ev)
-    : TBase(self)
-    , Ev(ev)
-    , IsAccepted(false)
-    , RequestStartTime(TAppData::TimeProvider->Now())
-{
+    : TBase(self) 
+    , Ev(ev) 
+    , IsAccepted(false) 
+    , RequestStartTime(TAppData::TimeProvider->Now()) 
+{ 
     Y_VERIFY(Ev);
-}
-
+} 
+ 
 bool TDataShard::TTxPlanStep::Execute(TTransactionContext &txc, const TActorContext &ctx) {
     Y_VERIFY(Ev);
-
+ 
     // TEvPlanStep are strictly ordered by mediator so this Tx must not be retried not to break this ordering!
     txc.DB.NoMoreReadsForTx();
-
+ 
     TxByAck.clear();
     IsAccepted = false;
-
+ 
     const ui64 step = Ev->Get()->Record.GetStep();
     Self->LastKnownMediator = Ev->Get()->Record.GetMediatorID();
 
@@ -39,7 +39,7 @@ bool TDataShard::TTxPlanStep::Execute(TTransactionContext &txc, const TActorCont
         TActorId txOwner = ActorIdFromProto(tx.GetAckTo());
         TxByAck[txOwner].push_back(tx.GetTxId());
     }
-
+ 
     if (Self->State != TShardState::Offline && Self->State != TShardState::PreOffline) {
         // The DS is completing Drop, so we just ignore PlanStep assuming that it might only contain
         // transactions that have already been executed.
@@ -56,40 +56,40 @@ bool TDataShard::TTxPlanStep::Execute(TTransactionContext &txc, const TActorCont
         Self->IncCounter(COUNTER_PLAN_STEP_IGNORED);
         return true;
     }
-
+ 
     for (ui64 txId : txIds) {
         LOG_DEBUG_S(ctx, NKikimrServices::TX_DATASHARD,
                     "Planned transaction txId " << txId << " at step " << step
                     << " at tablet " << Self->TabletID() << " " << Ev->Get()->Record);
     }
-
+ 
     Self->PlanQueue.Progress(ctx);
     Self->IncCounter(COUNTER_PLAN_STEP_ACCEPTED);
     return true;
-}
-
+} 
+ 
 void TDataShard::TTxPlanStep::Complete(const TActorContext &ctx) {
     Y_VERIFY(Ev);
     ui64 step = Ev->Get()->Record.GetStep();
-
-    for (auto& kv : TxByAck) {
+ 
+    for (auto& kv : TxByAck) { 
         THolder<TEvTxProcessing::TEvPlanStepAck> ack =
             MakeHolder<TEvTxProcessing::TEvPlanStepAck>(Self->TabletID(), step, kv.second.begin(), kv.second.end());
         LOG_DEBUG_S(ctx, NKikimrServices::TX_DATASHARD, "Sending '" << ack->ToString());
 
         ctx.Send(kv.first, ack.Release()); // Ack to Tx coordinator
-    }
-
+    } 
+ 
     THolder<TEvTxProcessing::TEvPlanStepAccepted> accepted =
         MakeHolder<TEvTxProcessing::TEvPlanStepAccepted>(Self->TabletID(), step);
     LOG_DEBUG_S(ctx, NKikimrServices::TX_DATASHARD, "Sending '" << accepted->ToString());
 
     ctx.Send(Ev->Sender, accepted.Release()); // Reply to the mediator
 
-    if (IsAccepted) {
+    if (IsAccepted) { 
         TDuration duration = TAppData::TimeProvider->Now() - RequestStartTime;
         Self->IncCounter(COUNTER_ACCEPTED_PLAN_STEP_COMPLETE_LATENCY, duration);
-    }
-}
-
-}}
+    } 
+} 
+ 
+}} 
diff --git a/ydb/core/tx/datashard/datashard__progress_resend_rs.cpp b/ydb/core/tx/datashard/datashard__progress_resend_rs.cpp
index 6a96ceee8f..49397c85fb 100644
--- a/ydb/core/tx/datashard/datashard__progress_resend_rs.cpp
+++ b/ydb/core/tx/datashard/datashard__progress_resend_rs.cpp
@@ -1,24 +1,24 @@
 #include "datashard_txs.h"
-
-namespace NKikimr {
-
+ 
+namespace NKikimr { 
+ 
 namespace NDataShard {
-
+ 
     TDataShard::TTxProgressResendRS::TTxProgressResendRS(TDataShard *self, ui64 seqno)
-        : TBase(self)
-        , Seqno(seqno)
-    {
-    }
-
+        : TBase(self) 
+        , Seqno(seqno) 
+    { 
+    } 
+ 
     bool TDataShard::TTxProgressResendRS::Execute(TTransactionContext &txc, const TActorContext &ctx) {
-        LOG_DEBUG(ctx, NKikimrServices::TX_DATASHARD, "Start TTxProgressResendRS at tablet %" PRIu64, Self->TabletID());
+        LOG_DEBUG(ctx, NKikimrServices::TX_DATASHARD, "Start TTxProgressResendRS at tablet %" PRIu64, Self->TabletID()); 
         return Self->OutReadSets.ResendRS(txc, ctx, Seqno);
-    }
-
+    } 
+ 
     void TDataShard::TTxProgressResendRS::Complete(const TActorContext &ctx) {
         Y_UNUSED(ctx);
-        /* no-op */
-    }
-}
-
-}
+        /* no-op */ 
+    } 
+} 
+ 
+} 
diff --git a/ydb/core/tx/datashard/datashard__progress_tx.cpp b/ydb/core/tx/datashard/datashard__progress_tx.cpp
index 3f1fab6b46..fd5afe107d 100644
--- a/ydb/core/tx/datashard/datashard__progress_tx.cpp
+++ b/ydb/core/tx/datashard/datashard__progress_tx.cpp
@@ -1,28 +1,28 @@
 #include "datashard_txs.h"
 #include "datashard_failpoints.h"
-
-namespace NKikimr {
+ 
+namespace NKikimr { 
 namespace NDataShard {
-
+ 
 TDataShard::TTxProgressTransaction::TTxProgressTransaction(TDataShard *self, TOperation::TPtr op)
-    : TBase(self)
+    : TBase(self) 
     , ActiveOp(std::move(op))
 {}
-
+ 
 bool TDataShard::TTxProgressTransaction::Execute(TTransactionContext &txc, const TActorContext &ctx) {
     LOG_DEBUG_S(ctx, NKikimrServices::TX_DATASHARD,
                 "TTxProgressTransaction::Execute at " << Self->TabletID());
 
-    try {
+    try { 
         if (!Self->IsStateActive()) {
             Self->IncCounter(COUNTER_TX_PROGRESS_SHARD_INACTIVE);
             LOG_INFO_S(ctx, NKikimrServices::TX_DATASHARD,
                 "Progress tx at non-ready tablet " << Self->TabletID() << " state " << Self->State);
             Y_VERIFY(!ActiveOp, "Unexpected ActiveOp at inactive shard %" PRIu64, Self->TabletID());
             Self->PlanQueue.Reset(ctx);
-            return true;
-        }
-
+            return true; 
+        } 
+ 
         NIceDb::TNiceDb db(txc.DB);
 
         if (!ActiveOp) {
@@ -38,7 +38,7 @@ bool TDataShard::TTxProgressTransaction::Execute(TTransactionContext &txc, const
             if (needFutureCleanup) {
                 Self->PlanCleanup(ctx);
             }
-
+ 
             // Allow another concurrent progress tx
             Self->PlanQueue.Reset(ctx);
             Self->Pipeline.ActivateWaitingTxOps(ctx);
@@ -56,8 +56,8 @@ bool TDataShard::TTxProgressTransaction::Execute(TTransactionContext &txc, const
                        << ActiveOp->GetKind() << " " << *ActiveOp << " (unit "
                        << ActiveOp->GetCurrentUnit() << ") at " << Self->TabletID());
             ActiveOp->IncrementInProgress();
-        }
-
+        } 
+ 
         Y_VERIFY(ActiveOp && ActiveOp->IsInProgress());
         auto status = Self->Pipeline.RunExecutionPlan(ActiveOp, CompleteList, txc, ctx);
 
@@ -101,11 +101,11 @@ bool TDataShard::TTxProgressTransaction::Execute(TTransactionContext &txc, const
 
         // Commit all side effects
         return true;
-    } catch (...) {
+    } catch (...) { 
         Y_FAIL("there must be no leaked exceptions");
-    }
-}
-
+    } 
+} 
+ 
 void TDataShard::TTxProgressTransaction::Complete(const TActorContext &ctx) {
     LOG_DEBUG_S(ctx, NKikimrServices::TX_DATASHARD,
                 "TTxProgressTransaction::Complete at " << Self->TabletID());
@@ -133,6 +133,6 @@ void TDataShard::TTxProgressTransaction::Complete(const TActorContext &ctx) {
 
     Self->CheckSplitCanStart(ctx);
     Self->CheckMvccStateChangeCanStart(ctx);
-}
-
-}}
+} 
+ 
+}} 
diff --git a/ydb/core/tx/datashard/datashard__propose_tx_base.cpp b/ydb/core/tx/datashard/datashard__propose_tx_base.cpp
index 7dfb1a294e..1e222f7f3f 100644
--- a/ydb/core/tx/datashard/datashard__propose_tx_base.cpp
+++ b/ydb/core/tx/datashard/datashard__propose_tx_base.cpp
@@ -1,12 +1,12 @@
 #include "datashard_txs.h"
 #include "datashard_failpoints.h"
 #include "operation.h"
-
+ 
 #include <ydb/core/util/pb.h>
 
-namespace NKikimr {
+namespace NKikimr { 
 namespace NDataShard {
-
+ 
 TDataShard::TTxProposeTransactionBase::TTxProposeTransactionBase(TDataShard *self,
                                                                         TEvDataShard::TEvProposeTransaction::TPtr &&ev,
                                                                         TInstant receivedAt, ui64 tieBreakerIndex,
@@ -33,7 +33,7 @@ bool TDataShard::TTxProposeTransactionBase::Execute(NTabletFlatExecutor::TTransa
         Acked = true;
     }
 
-    try {
+    try { 
         TOutputOpData::TResultPtr result = nullptr;
         // If tablet is in follower mode then we should sync scheme
         // before we build and check operation.
@@ -137,23 +137,23 @@ bool TDataShard::TTxProposeTransactionBase::Execute(NTabletFlatExecutor::TTransa
         }
 
         // Commit all side effects
-        return true;
-    } catch (const TNotReadyTabletException &) {
+        return true; 
+    } catch (const TNotReadyTabletException &) { 
         LOG_DEBUG_S(ctx, NKikimrServices::TX_DATASHARD,
             "TX [" << 0 << " : " << TxId << "] can't prepare (tablet's not ready) at tablet " << Self->TabletID());
-        return false;
-    } catch (const TSchemeErrorTabletException &ex) {
+        return false; 
+    } catch (const TSchemeErrorTabletException &ex) { 
         Y_UNUSED(ex);
         Y_FAIL();
     } catch (const TMemoryLimitExceededException &ex) {
         Y_FAIL("there must be no leaked exceptions: TMemoryLimitExceededException");
     } catch (const std::exception &e) {
         Y_FAIL("there must be no leaked exceptions: %s", e.what());
-    } catch (...) {
+    } catch (...) { 
         Y_FAIL("there must be no leaked exceptions");
-    }
-}
-
+    } 
+} 
+ 
 void TDataShard::TTxProposeTransactionBase::Complete(const TActorContext &ctx) {
     LOG_DEBUG_S(ctx, NKikimrServices::TX_DATASHARD,
                 "TTxProposeTransactionBase::Complete at " << Self->TabletID());
@@ -181,6 +181,6 @@ void TDataShard::TTxProposeTransactionBase::Complete(const TActorContext &ctx) {
 
     Self->CheckSplitCanStart(ctx);
     Self->CheckMvccStateChangeCanStart(ctx);
-}
-
-}}
+} 
+ 
+}} 
diff --git a/ydb/core/tx/datashard/datashard__readset.cpp b/ydb/core/tx/datashard/datashard__readset.cpp
index c935025b80..423225c32c 100644
--- a/ydb/core/tx/datashard/datashard__readset.cpp
+++ b/ydb/core/tx/datashard/datashard__readset.cpp
@@ -1,14 +1,14 @@
 #include "datashard_txs.h"
-
-namespace NKikimr {
-
+ 
+namespace NKikimr { 
+ 
 namespace NDataShard {
-
+ 
     TDataShard::TTxReadSet::TTxReadSet(TDataShard *self, TEvTxProcessing::TEvReadSet::TPtr ev)
-        : TBase(self)
-        , Ev(ev)
+        : TBase(self) 
+        , Ev(ev) 
     {}
-
+ 
     bool TDataShard::TTxReadSet::Execute(TTransactionContext &txc, const TActorContext &ctx) {
         LOG_DEBUG_S(ctx, NKikimrServices::TX_DATASHARD,
                     "TTxReadSet::Execute at " << Self->TabletID() << " got read set: "
@@ -34,30 +34,30 @@ namespace NDataShard {
         if (!saved) { // delayed. Do not ack
             Y_VERIFY(!Ack);
             Ev.Reset();
-        }
-
-        return true;
-    }
-
+        } 
+ 
+        return true; 
+    } 
+ 
     THolder<IEventHandle> TDataShard::TTxReadSet::MakeAck(const TActorContext& ctx) {
         return THolder(new IEventHandle(Ev->Sender, ctx.SelfID,
                                 new TEvTxProcessing::TEvReadSetAck(*Ev->Get(), Self->TabletID())));
-    }
-
+    } 
+ 
     void TDataShard::TTxReadSet::Complete(const TActorContext &ctx) {
         LOG_DEBUG_S(ctx, NKikimrServices::TX_DATASHARD,
                     "TTxReadSet::Complete at " << Self->TabletID());
 
-        // If it was read set for non-active tx we should send ACK back after successful save in DB
-        // Note that, active tx will send "delayed" ACK after tx complete
+        // If it was read set for non-active tx we should send ACK back after successful save in DB 
+        // Note that, active tx will send "delayed" ACK after tx complete 
         if (Ack) {
             LOG_DEBUG(ctx, NKikimrServices::TX_DATASHARD,
                       "Send RS Ack at %" PRIu64 " %s",
                       Self->TabletID(), Ev->Get()->ToString().data());
             ctx.ExecutorThread.Send(Ack);
             Self->IncCounter(COUNTER_ACK_SENT);
-        }
-    }
-}
-
-}
+        } 
+    } 
+} 
+ 
+} 
diff --git a/ydb/core/tx/datashard/datashard_impl.h b/ydb/core/tx/datashard/datashard_impl.h
index 11313474f8..4429a8fc51 100644
--- a/ydb/core/tx/datashard/datashard_impl.h
+++ b/ydb/core/tx/datashard/datashard_impl.h
@@ -1,5 +1,5 @@
-#pragma once
-
+#pragma once 
+ 
 #include "datashard.h"
 #include "datashard_locks.h"
 #include "datashard_trans_queue.h"
@@ -16,9 +16,9 @@
 #include "datashard_repl_offsets_server.h"
 #include "change_exchange.h"
 #include "change_record.h"
-#include "progress_queue.h"
+#include "progress_queue.h" 
 #include "read_iterator.h"
-
+ 
 #include <ydb/core/tx/time_cast/time_cast.h>
 #include <ydb/core/tx/tx_processing.h>
 #include <ydb/core/tx/schemeshard/schemeshard.h>
@@ -40,16 +40,16 @@
 #include <ydb/core/protos/tx_datashard.pb.h>
 #include <ydb/core/protos/subdomains.pb.h>
 #include <ydb/core/protos/counters_datashard.pb.h>
-
+ 
 #include <ydb/public/api/protos/ydb_status_codes.pb.h>
 
 #include <library/cpp/actors/interconnect/interconnect.h>
 
 #include <util/string/join.h>
 
-namespace NKikimr {
+namespace NKikimr { 
 namespace NDataShard {
-
+ 
 extern TStringBuf SnapshotTransferReadSetMagic;
 
 using NTabletFlatExecutor::ITransaction;
@@ -139,19 +139,19 @@ class TDataShard
     , public NTabletFlatExecutor::TTabletExecutedFlat
 {
     class TTxStopGuard;
-    class TTxGetShardState;
-    class TTxInit;
+    class TTxGetShardState; 
+    class TTxInit; 
     class TTxInitSchema;
     class TTxInitSchemaDefaults;
-    class TTxPlanStep;
-    class TTxProgressResendRS;
-    class TTxProgressTransaction;
+    class TTxPlanStep; 
+    class TTxProgressResendRS; 
+    class TTxProgressTransaction; 
     class TTxCleanupTransaction;
-    class TTxProposeDataTransaction;
+    class TTxProposeDataTransaction; 
     class TTxProposeSchemeTransaction;
     class TTxCancelTransactionProposal;
-    class TTxProposeTransactionBase;
-    class TTxReadSet;
+    class TTxProposeTransactionBase; 
+    class TTxReadSet; 
     class TTxSchemaChanged;
     class TTxInitiateBorrowedPartsReturn;
     class TTxReturnBorrowedPart;
@@ -199,7 +199,7 @@ class TDataShard
     class TTxCompactBorrowed;
     class TTxCompactTable;
     class TTxPersistFullCompactionTs;
-
+ 
     template <typename T> friend class TTxDirectBase;
     class TTxUploadRows;
     class TTxEraseRows;
@@ -222,7 +222,7 @@ class TDataShard
             NMon::TEvRemoteHttpInfo::TPtr ev);
 
     friend class TDataShardMiniKQLFactory;
-    friend class TDataTransactionProcessor;
+    friend class TDataTransactionProcessor; 
     friend class TSchemeTransactionProcessor;
     friend class TScanTransactionProcessor;
     friend class TDataShardEngineHost;
@@ -230,7 +230,7 @@ class TDataShard
     friend class TExecuteKqpScanTxUnit;
     friend class TTableScan;
     friend class TKqpScan;
-
+ 
     friend class TTransQueue;
     friend class TOutReadSets;
     friend class TPipeline;
@@ -274,15 +274,15 @@ class TDataShard
 
     class TTxApplyReplicationChanges;
 
-    struct TEvPrivate {
-        enum EEv {
+    struct TEvPrivate { 
+        enum EEv { 
             EvProgressTransaction = EventSpaceBegin(TKikimrEvents::ES_PRIVATE), // WARNING: tests use ES_PRIVATE + 0
             EvCleanupTransaction,
             EvDelayedProposeTransaction, // WARNING: tests use ES_PRIVATE + 2
-            EvProgressResendReadSet,
-            EvFlushOperationCounters,
-            EvDelayedFlushOperationCounters,
-            EvProgressOperationHistogramScan,
+            EvProgressResendReadSet, 
+            EvFlushOperationCounters, 
+            EvDelayedFlushOperationCounters, 
+            EvProgressOperationHistogramScan, 
             EvPeriodicWakeup,
             EvAsyncTableStats,
             EvRemoveOldInReadSets, // WARNING: tests use ES_PRIVATE + 9
@@ -297,27 +297,27 @@ class TDataShard
             EvRequestChangeRecords,
             EvRemoveChangeRecords,
             EvReplicationSourceOffsets,
-            EvEnd
-        };
-
-        static_assert(EvEnd < EventSpaceEnd(TKikimrEvents::ES_PRIVATE), "expect EvEnd < EventSpaceEnd(TKikimrEvents::ES_PRIVATE)");
-
-        struct TEvProgressTransaction : public TEventLocal<TEvProgressTransaction, EvProgressTransaction> {};
+            EvEnd 
+        }; 
+ 
+        static_assert(EvEnd < EventSpaceEnd(TKikimrEvents::ES_PRIVATE), "expect EvEnd < EventSpaceEnd(TKikimrEvents::ES_PRIVATE)"); 
+ 
+        struct TEvProgressTransaction : public TEventLocal<TEvProgressTransaction, EvProgressTransaction> {}; 
         struct TEvCleanupTransaction : public TEventLocal<TEvCleanupTransaction, EvCleanupTransaction> {};
         struct TEvDelayedProposeTransaction : public TEventLocal<TEvDelayedProposeTransaction, EvDelayedProposeTransaction> {};
-
-        struct TEvProgressResendReadSet : public TEventLocal<TEvProgressResendReadSet, EvProgressResendReadSet> {
-            TEvProgressResendReadSet(ui64 seqno)
-                : Seqno(seqno)
-            {}
-
-            const ui64 Seqno;
-        };
-
-        struct TEvFlushOperationCounters : public TEventLocal<TEvFlushOperationCounters, EvFlushOperationCounters> {};
-        struct TEvDelayedFlushOperationCounters : public TEventLocal<TEvDelayedFlushOperationCounters, EvDelayedFlushOperationCounters> {};
-
-        struct TEvProgressOperationHistogramScan : public TEventLocal<TEvProgressOperationHistogramScan, EvProgressOperationHistogramScan> {};
+ 
+        struct TEvProgressResendReadSet : public TEventLocal<TEvProgressResendReadSet, EvProgressResendReadSet> { 
+            TEvProgressResendReadSet(ui64 seqno) 
+                : Seqno(seqno) 
+            {} 
+ 
+            const ui64 Seqno; 
+        }; 
+ 
+        struct TEvFlushOperationCounters : public TEventLocal<TEvFlushOperationCounters, EvFlushOperationCounters> {}; 
+        struct TEvDelayedFlushOperationCounters : public TEventLocal<TEvDelayedFlushOperationCounters, EvDelayedFlushOperationCounters> {}; 
+ 
+        struct TEvProgressOperationHistogramScan : public TEventLocal<TEvProgressOperationHistogramScan, EvProgressOperationHistogramScan> {}; 
 
         struct TEvPeriodicWakeup : public TEventLocal<TEvPeriodicWakeup, EvPeriodicWakeup> {};
 
@@ -436,32 +436,32 @@ class TDataShard
             // Note that keys are NOT sorted in any way
             THashMap<TString, TVector<TSplitKey>> SourceOffsets;
         };
-    };
-
+    }; 
+ 
     struct Schema : NIceDb::Schema {
-        struct Sys : Table<1> {
+        struct Sys : Table<1> { 
             struct Id :             Column<1, NScheme::NTypeIds::Uint64> {};
             struct Bytes :          Column<2, NScheme::NTypeIds::String> {};
             struct Uint64 :         Column<3, NScheme::NTypeIds::Uint64> {};
-
+ 
             using TKey = TableKey<Id>;
             using TColumns = TableColumns<Id, Bytes, Uint64>;
-        };
-
+        }; 
+ 
         // Note that table UserTablesStats must be always updated with this one
-        struct UserTables : Table<2> {
+        struct UserTables : Table<2> { 
             struct Tid :            Column<1, NScheme::NTypeIds::Uint64> {};
             struct LocalTid :       Column<2, NScheme::NTypeIds::Uint32> {};
             struct Path :           Column<3, NScheme::NTypeIds::String> {};
             struct Name :           Column<4, NScheme::NTypeIds::String> {};
             struct Schema :         Column<5, NScheme::NTypeIds::String> { using Type = TString; };
             struct ShadowTid :      Column<6, NScheme::NTypeIds::Uint32> { static constexpr ui32 Default = 0; };
-
+ 
             using TKey = TableKey<Tid>;
             using TColumns = TableColumns<Tid, LocalTid, Path, Name, Schema, ShadowTid>;
-        };
-
-        struct TxMain : Table<3> {
+        }; 
+ 
+        struct TxMain : Table<3> { 
             struct TxId :           Column<1, NScheme::NTypeIds::Uint64> {};
             struct Kind :           Column<2, NScheme::NTypeIds::Uint32> { using Type = EOperationKind; };
             struct Flags :          Column<3, NScheme::NTypeIds::Uint32> {};
@@ -472,35 +472,35 @@ class TDataShard
             struct Flags64 :        Column<8, NScheme::NTypeIds::Uint64> {};
             struct Source :         Column<9, NScheme::NTypeIds::ActorId> {};
             struct Cookie :         Column<10, NScheme::NTypeIds::Uint64> {};
-
+ 
             using TKey = TableKey<TxId>;
             using TColumns = TableColumns<TxId, Kind, Flags, State, InRSRemain, MaxStep, ReceivedAt, Flags64, Source, Cookie>;
-        };
-
-        struct TxDetails : Table<4> {
+        }; 
+ 
+        struct TxDetails : Table<4> { 
             struct TxId :           Column<1, NScheme::NTypeIds::Uint64> {};
             struct Origin :         Column<2, NScheme::NTypeIds::Uint64> {};
             struct InReadSetState : Column<3, NScheme::NTypeIds::Uint64> {}; // Not used
             struct Body :           Column<4, NScheme::NTypeIds::String> { using Type = TString; };
             struct Source :         Column<5, NScheme::NTypeIds::ActorId> {};
-
+ 
             using TKey = TableKey<TxId, Origin>;
             using TColumns = TableColumns<TxId, Origin, InReadSetState, Body, Source>;
-        };
-
-        struct InReadSets : Table<5> {
+        }; 
+ 
+        struct InReadSets : Table<5> { 
             struct TxId :           Column<1, NScheme::NTypeIds::Uint64> {};
             struct Origin :         Column<2, NScheme::NTypeIds::Uint64> {};
             struct From :           Column<3, NScheme::NTypeIds::Uint64> {};
             struct To :             Column<4, NScheme::NTypeIds::Uint64> {};
             struct Body :           Column<5, NScheme::NTypeIds::String> { using Type = TString; };
             struct BalanceTrackList :      Column<6, NScheme::NTypeIds::String> { using Type = TString; };
-
+ 
             using TKey = TableKey<TxId, Origin, From, To>;
             using TColumns = TableColumns<TxId, Origin, From, To, Body, BalanceTrackList>;
-        };
-
-        struct OutReadSets : Table<6> {
+        }; 
+ 
+        struct OutReadSets : Table<6> { 
             struct Seqno :          Column<1, NScheme::NTypeIds::Uint64> {};
             struct Step :           Column<2, NScheme::NTypeIds::Uint64> {};
             struct TxId :           Column<3, NScheme::NTypeIds::Uint64> {};
@@ -509,27 +509,27 @@ class TDataShard
             struct To :             Column<6, NScheme::NTypeIds::Uint64> {};
             struct Body :           Column<7, NScheme::NTypeIds::String> { using Type = TString; };
             struct SplitTraj :      Column<8, NScheme::NTypeIds::String> { using Type = TString; };
-
+ 
             using TKey = TableKey<Seqno>;
             using TColumns = TableColumns<Seqno, Step, TxId, Origin, From, To, Body, SplitTraj>;
-        };
-
-        struct PlanQueue : Table<7> {
+        }; 
+ 
+        struct PlanQueue : Table<7> { 
             struct Step :           Column<1, NScheme::NTypeIds::Uint64> {};
             struct TxId :           Column<2, NScheme::NTypeIds::Uint64> {};
-
+ 
             using TKey = TableKey<Step, TxId>;
             using TColumns = TableColumns<Step, TxId>;
-        };
-
-        struct DeadlineQueue : Table<8> {
+        }; 
+ 
+        struct DeadlineQueue : Table<8> { 
             struct MaxStep :        Column<1, NScheme::NTypeIds::Uint64> {};
             struct TxId :           Column<2, NScheme::NTypeIds::Uint64> {};
-
+ 
             using TKey = TableKey<MaxStep, TxId>;
             using TColumns = TableColumns<MaxStep, TxId>;
-        };
-
+        }; 
+ 
         struct SchemaOperations : Table<9> {
             struct TxId :           Column<1, NScheme::NTypeIds::Uint64> {};
             struct Operation :      Column<2, NScheme::NTypeIds::Uint32> {};
@@ -539,7 +539,7 @@ class TDataShard
             struct MaxStep :        Column<6, NScheme::NTypeIds::Uint64> {};
             struct PlanStep :       Column<7, NScheme::NTypeIds::Uint64> {};
             struct ReadOnly :       Column<8, NScheme::NTypeIds::Bool> {};
-
+ 
             struct Success :        Column<9, NScheme::NTypeIds::Bool> {};
             struct Error :          Column<10, NScheme::NTypeIds::String> { using Type = TString; };
             struct DataSize :       Column<11, NScheme::NTypeIds::Uint64> {}; // Bytes
@@ -816,11 +816,11 @@ class TDataShard
         static_assert(ESysTableKeys::Sys_SubDomainOutOfSpace == 35, "Sys_SubDomainOutOfSpace changed its value");
 
         static constexpr ui64 MinLocalTid = TSysTables::SysTableMAX + 1; // 1000
-
+ 
         static constexpr const char* UserTablePrefix = "__user__";
         static constexpr const char* ShadowTablePrefix = "__shadow__";
-    };
-
+    }; 
+ 
     inline static bool SysGetUi64(NIceDb::TNiceDb& db, ui64 row, ui64& value) {
         auto rowset = db.Table<Schema::Sys>().Key(row).Select<Schema::Sys::Uint64>();
         if (!rowset.IsReady())
@@ -880,30 +880,30 @@ class TDataShard
     }
 
     void Handle(TEvents::TEvGone::TPtr &ev);
-    void Handle(TEvents::TEvPoisonPill::TPtr &ev, const TActorContext &ctx);
-    void Handle(TEvDataShard::TEvGetShardState::TPtr &ev, const TActorContext &ctx);
+    void Handle(TEvents::TEvPoisonPill::TPtr &ev, const TActorContext &ctx); 
+    void Handle(TEvDataShard::TEvGetShardState::TPtr &ev, const TActorContext &ctx); 
     void Handle(TEvDataShard::TEvSchemaChangedResult::TPtr &ev, const TActorContext &ctx);
     void Handle(TEvDataShard::TEvStateChangedResult::TPtr &ev, const TActorContext &ctx);
-    void Handle(TEvDataShard::TEvProposeTransaction::TPtr &ev, const TActorContext &ctx);
+    void Handle(TEvDataShard::TEvProposeTransaction::TPtr &ev, const TActorContext &ctx); 
     void Handle(TEvDataShard::TEvProposeTransactionAttach::TPtr &ev, const TActorContext &ctx);
     void HandleAsFollower(TEvDataShard::TEvProposeTransaction::TPtr &ev, const TActorContext &ctx);
     void ProposeTransaction(TEvDataShard::TEvProposeTransaction::TPtr &&ev, const TActorContext &ctx);
-    void Handle(TEvTxProcessing::TEvPlanStep::TPtr &ev, const TActorContext &ctx);
-    void Handle(TEvTxProcessing::TEvReadSet::TPtr &ev, const TActorContext &ctx);
-    void Handle(TEvTxProcessing::TEvReadSetAck::TPtr &ev, const TActorContext &ctx);
-    void Handle(TEvPrivate::TEvProgressTransaction::TPtr &ev, const TActorContext &ctx);
+    void Handle(TEvTxProcessing::TEvPlanStep::TPtr &ev, const TActorContext &ctx); 
+    void Handle(TEvTxProcessing::TEvReadSet::TPtr &ev, const TActorContext &ctx); 
+    void Handle(TEvTxProcessing::TEvReadSetAck::TPtr &ev, const TActorContext &ctx); 
+    void Handle(TEvPrivate::TEvProgressTransaction::TPtr &ev, const TActorContext &ctx); 
     void Handle(TEvPrivate::TEvCleanupTransaction::TPtr &ev, const TActorContext &ctx);
     void Handle(TEvPrivate::TEvDelayedProposeTransaction::TPtr &ev, const TActorContext &ctx);
-    void Handle(TEvPrivate::TEvProgressResendReadSet::TPtr &ev, const TActorContext &ctx);
+    void Handle(TEvPrivate::TEvProgressResendReadSet::TPtr &ev, const TActorContext &ctx); 
     void Handle(TEvPrivate::TEvRemoveOldInReadSets::TPtr &ev, const TActorContext &ctx);
     void Handle(TEvPrivate::TEvRegisterScanActor::TPtr &ev, const TActorContext &ctx);
     void Handle(TEvPrivate::TEvScanStats::TPtr &ev, const TActorContext &ctx);
     void Handle(TEvPrivate::TEvPersistScanState::TPtr &ev, const TActorContext &ctx);
-    void Handle(TEvTabletPipe::TEvClientConnected::TPtr &ev, const TActorContext &ctx);
-    void Handle(TEvTabletPipe::TEvClientDestroyed::TPtr &ev, const TActorContext &ctx);
-    void Handle(TEvTabletPipe::TEvServerConnected::TPtr &ev, const TActorContext &ctx);
-    void Handle(TEvTabletPipe::TEvServerDisconnected::TPtr &ev, const TActorContext &ctx);
-    void Handle(TEvMediatorTimecast::TEvRegisterTabletResult::TPtr& ev, const TActorContext& ctx);
+    void Handle(TEvTabletPipe::TEvClientConnected::TPtr &ev, const TActorContext &ctx); 
+    void Handle(TEvTabletPipe::TEvClientDestroyed::TPtr &ev, const TActorContext &ctx); 
+    void Handle(TEvTabletPipe::TEvServerConnected::TPtr &ev, const TActorContext &ctx); 
+    void Handle(TEvTabletPipe::TEvServerDisconnected::TPtr &ev, const TActorContext &ctx); 
+    void Handle(TEvMediatorTimecast::TEvRegisterTabletResult::TPtr& ev, const TActorContext& ctx); 
     void Handle(TEvMediatorTimecast::TEvNotifyPlanStep::TPtr& ev, const TActorContext& ctx);
     void Handle(TEvDataShard::TEvCancelTransactionProposal::TPtr &ev, const TActorContext &ctx);
     void Handle(TEvDataShard::TEvReturnBorrowedPart::TPtr& ev, const TActorContext& ctx);
@@ -947,7 +947,7 @@ class TDataShard
     void Handle(TEvDataShard::TEvUnsafeUploadRowsRequest::TPtr& ev, const TActorContext& ctx);
     void Handle(TEvDataShard::TEvBuildIndexCreateRequest::TPtr& ev, const TActorContext& ctx);
     void Handle(TEvPrivate::TEvAsyncJobComplete::TPtr& ev, const TActorContext& ctx);
-
+ 
     void Handle(TEvDataShard::TEvCancelBackup::TPtr &ev, const TActorContext &ctx);
     void Handle(TEvDataShard::TEvCancelRestore::TPtr &ev, const TActorContext &ctx);
 
@@ -1010,27 +1010,27 @@ class TDataShard
     void UpdateLagCounters(const TActorContext &ctx);
     static NTabletPipe::TClientConfig GetPipeClientConfig();
 
-    void OnDetach(const TActorContext &ctx) override;
+    void OnDetach(const TActorContext &ctx) override; 
     void OnTabletStop(TEvTablet::TEvTabletStop::TPtr &ev, const TActorContext &ctx) override;
     void OnStopGuardStarting(const TActorContext &ctx);
     void OnStopGuardComplete(const TActorContext &ctx);
-    void OnTabletDead(TEvTablet::TEvTabletDead::TPtr &ev, const TActorContext &ctx) override;
-    void OnActivateExecutor(const TActorContext &ctx) override;
+    void OnTabletDead(TEvTablet::TEvTabletDead::TPtr &ev, const TActorContext &ctx) override; 
+    void OnActivateExecutor(const TActorContext &ctx) override; 
 
     void Cleanup(const TActorContext &ctx);
-    void SwitchToWork(const TActorContext &ctx);
-    void SyncConfig();
-
-    TMaybe<TInstant> GetTxPlanStartTimeAndCleanup(ui64 step);
-
-    void RestartPipeRS(ui64 tabletId, const TActorContext& ctx);
+    void SwitchToWork(const TActorContext &ctx); 
+    void SyncConfig(); 
+ 
+    TMaybe<TInstant> GetTxPlanStartTimeAndCleanup(ui64 step); 
+ 
+    void RestartPipeRS(ui64 tabletId, const TActorContext& ctx); 
     void AckRSToDeletedTablet(ui64 tabletId, const TActorContext& ctx);
-
-    void DefaultSignalTabletActive(const TActorContext &ctx) override {
+ 
+    void DefaultSignalTabletActive(const TActorContext &ctx) override { 
         // This overriden in order to pospone SignalTabletActive until TxInit completes
         Y_UNUSED(ctx);
-    }
-
+    } 
+ 
     void PersistSys(NIceDb::TNiceDb& db, ui64 key, const TString& value) const;
     void PersistSys(NIceDb::TNiceDb& db, ui64 key, ui64 value) const;
     void PersistSys(NIceDb::TNiceDb& db, ui64 key, ui32 value) const;
@@ -1057,13 +1057,13 @@ class TDataShard
 
     TReadWriteVersions GetLocalReadWriteVersions() const;
 
-public:
+public: 
     static constexpr NKikimrServices::TActivity::EType ActorActivityType() {
         return NKikimrServices::TActivity::TX_DATASHARD_ACTOR;
     }
 
     TDataShard(const TActorId &tablet, TTabletStorageInfo *info);
-
+ 
 
     void PrepareAndSaveOutReadSets(ui64 step,
                                    ui64 txId,
@@ -1083,8 +1083,8 @@ public:
                     const TActorId &target,
                     ui64 step,
                     ui64 txId);
-    void FillSplitTrajectory(ui64 origin, NKikimrTx::TBalanceTrackList& tracks);
-
+    void FillSplitTrajectory(ui64 origin, NKikimrTx::TBalanceTrackList& tracks); 
+ 
     void SetCounter(NDataShard::ESimpleCounters counter, ui64 num) const {
         TabletCounters->Simple()[counter].Set(num);
     }
@@ -1443,7 +1443,7 @@ public:
 
     bool CheckChangesQueueOverflow() const;
 
-private:
+private: 
     ///
     class TLoanReturnTracker {
         struct TLoanReturnInfo {
@@ -1937,16 +1937,16 @@ private:
         };
     THashSet<ui64> SysTablesPartOnwers;
 
-    // Sys table contents
+    // Sys table contents 
     ui32 State;
-    ui32 LastLocalTid;
-    ui64 LastSeqno;
+    ui32 LastLocalTid; 
+    ui64 LastSeqno; 
     ui64 NextChangeRecordOrder;
     ui64 LastChangeRecordGroup;
     ui64 TxReadSizeLimit;
     ui64 StatisticsDisabled;
     bool Stopping = false;
-
+ 
     NMiniKQL::IKeyAccessSampler::TPtr DisabledKeySampler;
     NMiniKQL::IKeyAccessSampler::TPtr EnabledKeySampler;
     NMiniKQL::IKeyAccessSampler::TPtr CurrentKeySampler; // Points to enbaled or disabled
@@ -1969,9 +1969,9 @@ private:
     TS3UploadsManager S3Uploads;
     TS3DownloadsManager S3Downloads;
 
-    TIntrusivePtr<TMediatorTimecastEntry> MediatorTimeCastEntry;
+    TIntrusivePtr<TMediatorTimecastEntry> MediatorTimeCastEntry; 
     TSet<ui64> MediatorTimeCastWaitingSteps;
-
+ 
     TControlWrapper DisableByKeyFilter;
     TControlWrapper MaxTxInFly;
     TControlWrapper MaxTxLagMilliseconds;
@@ -2095,41 +2095,41 @@ private:
 
     TReadIteratorsMap ReadIterators;
 
-protected:
-    // Redundant init state required by flat executor implementation
-    void StateInit(TAutoPtr<NActors::IEventHandle> &ev, const NActors::TActorContext &ctx) {
+protected: 
+    // Redundant init state required by flat executor implementation 
+    void StateInit(TAutoPtr<NActors::IEventHandle> &ev, const NActors::TActorContext &ctx) { 
         TRACE_EVENT(NKikimrServices::TX_DATASHARD);
         switch (ev->GetTypeRewrite()) {
             HFuncTraced(TEvents::TEvPoisonPill, Handle);
         default:
             StateInitImpl(ev, ctx);
         }
-    }
-
+    } 
+ 
     void Enqueue(STFUNC_SIG) override {
         LOG_WARN_S(ctx, NKikimrServices::TX_DATASHARD, "TDataShard::StateInit unhandled event type: " << ev->GetTypeRewrite()
                            << " event: " << (ev->HasEvent() ? ev->GetBase()->ToString().data() : "serialized?"));
     }
 
-    // In this state we are not handling external pipes to datashard tablet (it's just another init phase)
-    void StateInactive(TAutoPtr<NActors::IEventHandle> &ev, const NActors::TActorContext &ctx) {
+    // In this state we are not handling external pipes to datashard tablet (it's just another init phase) 
+    void StateInactive(TAutoPtr<NActors::IEventHandle> &ev, const NActors::TActorContext &ctx) { 
         TRACE_EVENT(NKikimrServices::TX_DATASHARD);
-        switch (ev->GetTypeRewrite()) {
+        switch (ev->GetTypeRewrite()) { 
             HFuncTraced(TEvMediatorTimecast::TEvRegisterTabletResult, Handle);
             HFuncTraced(TEvents::TEvPoisonPill, Handle);
-        default:
+        default: 
             if (!HandleDefaultEvents(ev, ctx)) {
                 LOG_WARN_S(ctx, NKikimrServices::TX_DATASHARD, "TDataShard::StateInactive unhandled event type: " << ev->GetTypeRewrite()
                            << " event: " << (ev->HasEvent() ? ev->GetBase()->ToString().data() : "serialized?"));
             }
-            break;
-        }
-    }
-
-    // This is the main state
-    void StateWork(TAutoPtr<NActors::IEventHandle> &ev, const NActors::TActorContext &ctx) {
+            break; 
+        } 
+    } 
+ 
+    // This is the main state 
+    void StateWork(TAutoPtr<NActors::IEventHandle> &ev, const NActors::TActorContext &ctx) { 
         TRACE_EVENT(NKikimrServices::TX_DATASHARD);
-        switch (ev->GetTypeRewrite()) {
+        switch (ev->GetTypeRewrite()) { 
             hFunc(TEvents::TEvGone, Handle);
             HFuncTraced(TEvents::TEvPoisonPill, Handle);
             HFuncTraced(TEvDataShard::TEvGetShardState, Handle);
@@ -2227,16 +2227,16 @@ protected:
             fFunc(TEvDataShard::EvGetReplicationSourceOffsets, HandleByReplicationSourceOffsetsServer);
             fFunc(TEvDataShard::EvReplicationSourceOffsetsAck, HandleByReplicationSourceOffsetsServer);
             fFunc(TEvDataShard::EvReplicationSourceOffsetsCancel, HandleByReplicationSourceOffsetsServer);
-        default:
+        default: 
             if (!HandleDefaultEvents(ev, ctx)) {
                 LOG_WARN_S(ctx, NKikimrServices::TX_DATASHARD,
                            "TDataShard::StateWork unhandled event type: "<< ev->GetTypeRewrite()
                            << " event: " << (ev->HasEvent() ? ev->GetBase()->ToString().data() : "serialized?"));
             }
-            break;
-        }
-    }
-
+            break; 
+        } 
+    } 
+ 
     // This is the main state
     void StateWorkAsFollower(TAutoPtr<NActors::IEventHandle> &ev, const NActors::TActorContext &ctx) {
         TRACE_EVENT(NKikimrServices::TX_DATASHARD);
@@ -2257,20 +2257,20 @@ protected:
         }
     }
 
-    // State after tablet takes poison pill
-    void StateBroken(TAutoPtr<NActors::IEventHandle> &ev, const NActors::TActorContext &ctx) {
+    // State after tablet takes poison pill 
+    void StateBroken(TAutoPtr<NActors::IEventHandle> &ev, const NActors::TActorContext &ctx) { 
         TRACE_EVENT(NKikimrServices::TX_DATASHARD);
-        switch (ev->GetTypeRewrite()) {
+        switch (ev->GetTypeRewrite()) { 
             hFunc(TEvents::TEvGone, Handle);
             HFuncTraced(TEvTablet::TEvTabletDead, HandleTabletDead);
-        default:
+        default: 
             LOG_WARN_S(ctx, NKikimrServices::TX_DATASHARD, "TDataShard::BrokenState at tablet " << TabletID()
                        << " unhandled event type: " << ev->GetTypeRewrite()
                        << " event: " << (ev->HasEvent() ? ev->GetBase()->ToString().data() : "serialized?"));
             ctx.Send(ev->ForwardOnNondelivery(TEvents::TEvUndelivered::ReasonActorUnknown));
-            break;
-        }
-    }
+            break; 
+        } 
+    } 
 
     void Die(const TActorContext &ctx) override {
         NTabletPipe::CloseAndForgetClient(SelfId(), SchemeShardPipe);
@@ -2421,8 +2421,8 @@ protected:
     bool AllowCancelROwithReadsets() const;
 
     void ResolveTablePath(const TActorContext &ctx);
-};
-
+}; 
+ 
 NKikimrTxDataShard::TError::EKind ConvertErrCode(NMiniKQL::IEngineFlat::EResult code);
 
 Ydb::StatusIds::StatusCode ConvertToYdbStatusCode(NKikimrTxDataShard::TError::EKind);
@@ -2439,4 +2439,4 @@ void SetStatusError(T &rec,
     issue->set_message(msg);
 }
 
-}}
+}} 
diff --git a/ydb/core/tx/datashard/datashard_txs.h b/ydb/core/tx/datashard/datashard_txs.h
index 4a9ab00878..eefa6eb064 100644
--- a/ydb/core/tx/datashard/datashard_txs.h
+++ b/ydb/core/tx/datashard/datashard_txs.h
@@ -1,12 +1,12 @@
-#pragma once
-
+#pragma once 
+ 
 #include "datashard_common_upload.h"
 #include "datashard_impl.h"
 #include "execution_unit_kind.h"
-
-namespace NKikimr {
+ 
+namespace NKikimr { 
 namespace NDataShard {
-
+ 
 using NTabletFlatExecutor::TTransactionContext;
 
 class TDataShard::TTxStopGuard : public NTabletFlatExecutor::TTransactionBase<TDataShard> {
@@ -27,75 +27,75 @@ public:
 };
 
 class TDataShard::TTxGetShardState : public NTabletFlatExecutor::TTransactionBase<TDataShard> {
-public:
+public: 
     TTxGetShardState(TDataShard* ds, TEvDataShard::TEvGetShardState::TPtr ev);
-    bool Execute(TTransactionContext& txc, const TActorContext& ctx) override;
-    void Complete(const TActorContext &ctx) override;
+    bool Execute(TTransactionContext& txc, const TActorContext& ctx) override; 
+    void Complete(const TActorContext &ctx) override; 
     TTxType GetTxType() const override { return TXTYPE_GET_STARD_STATE; }
-private:
-    TEvDataShard::TEvGetShardState::TPtr Ev;
+private: 
+    TEvDataShard::TEvGetShardState::TPtr Ev; 
     THolder<TEvDataShard::TEvGetShardStateResult> Result;
-};
-
+}; 
+ 
 class TDataShard::TTxInit : public NTabletFlatExecutor::TTransactionBase<TDataShard> {
-public:
+public: 
     TTxInit(TDataShard* ds);
-    bool Execute(TTransactionContext& txc, const TActorContext& ctx) override;
-    void Complete(const TActorContext &ctx) override;
+    bool Execute(TTransactionContext& txc, const TActorContext& ctx) override; 
+    void Complete(const TActorContext &ctx) override; 
     TTxType GetTxType() const override { return TXTYPE_INIT; }
-private:
-    bool CreateScheme(TTransactionContext &txc);
-    bool ReadEverything(TTransactionContext &txc);
+private: 
+    bool CreateScheme(TTransactionContext &txc); 
+    bool ReadEverything(TTransactionContext &txc); 
 private:
     TVector<TEvChangeExchange::TEvEnqueueRecords::TRecordInfo> ChangeRecords;
-};
-
+}; 
+ 
 class TDataShard::TTxPlanStep : public NTabletFlatExecutor::TTransactionBase<TDataShard> {
-public:
+public: 
     TTxPlanStep(TDataShard *self, TEvTxProcessing::TEvPlanStep::TPtr ev);
-    bool Execute(TTransactionContext &txc, const TActorContext &ctx) override;
-    void Complete(const TActorContext &ctx) override;
+    bool Execute(TTransactionContext &txc, const TActorContext &ctx) override; 
+    void Complete(const TActorContext &ctx) override; 
     TTxType GetTxType() const override { return TXTYPE_PLAN_STEP; }
-
-private:
-    TEvTxProcessing::TEvPlanStep::TPtr Ev;
-    bool IsAccepted;
-    TInstant RequestStartTime;
+ 
+private: 
+    TEvTxProcessing::TEvPlanStep::TPtr Ev; 
+    bool IsAccepted; 
+    TInstant RequestStartTime; 
     TMap<TActorId, TVector<ui64>> TxByAck;
-};
-
+}; 
+ 
 class TDataShard::TTxProgressTransaction : public NTabletFlatExecutor::TTransactionBase<TDataShard> {
-public:
+public: 
     explicit TTxProgressTransaction(TDataShard *self, TOperation::TPtr op = nullptr);
-    bool Execute(TTransactionContext &txc, const TActorContext &ctx) override;
-    void Complete(const TActorContext &ctx) override;
+    bool Execute(TTransactionContext &txc, const TActorContext &ctx) override; 
+    void Complete(const TActorContext &ctx) override; 
     TTxType GetTxType() const override { return TXTYPE_PROGRESS_START; }
-
-private:
+ 
+private: 
     TOperation::TPtr ActiveOp;
     TVector<EExecutionUnitKind> CompleteList;
     TInstant CommitStart;
     bool Rescheduled = false;
-};
-
+}; 
+ 
 class TDataShard::TTxProposeTransactionBase : public NTabletFlatExecutor::TTransactionBase<TDataShard> {
 public:
     TTxProposeTransactionBase(TDataShard *self,
                               TEvDataShard::TEvProposeTransaction::TPtr &&ev,
                               TInstant receivedAt, ui64 tieBreakerIndex,
                               bool delayed);
-
+ 
     bool Execute(NTabletFlatExecutor::TTransactionContext &txc,
                  const TActorContext &ctx) override;
-    void Complete(const TActorContext &ctx) override;
+    void Complete(const TActorContext &ctx) override; 
     TTxType GetTxType() const override { return TXTYPE_PROPOSE; }
-
-private:
+ 
+private: 
     bool SyncSchemeOnFollower(TOutputOpData::TResultPtr &result,
                            TTransactionContext &txc,
                            const TActorContext &ctx);
-
-protected:
+ 
+protected: 
     TOperation::TPtr Op;
     TEvDataShard::TEvProposeTransaction::TPtr Ev;
     const TInstant ReceivedAt;
@@ -106,32 +106,32 @@ protected:
     TInstant CommitStart;
     bool Acked;
     bool Rescheduled = false;
-};
-
+}; 
+ 
 class TDataShard::TTxReadSet : public NTabletFlatExecutor::TTransactionBase<TDataShard> {
-public:
+public: 
     TTxReadSet(TDataShard *self, TEvTxProcessing::TEvReadSet::TPtr ev);
-    bool Execute(TTransactionContext &txc, const TActorContext &ctx) override;
-    void Complete(const TActorContext &ctx) override;
+    bool Execute(TTransactionContext &txc, const TActorContext &ctx) override; 
+    void Complete(const TActorContext &ctx) override; 
     TTxType GetTxType() const override { return TXTYPE_READSET; }
-
-private:
+ 
+private: 
     TEvTxProcessing::TEvReadSet::TPtr Ev;
     THolder<IEventHandle> Ack;
 
     THolder<IEventHandle> MakeAck(const TActorContext &ctx);
-};
-
+}; 
+ 
 class TDataShard::TTxProgressResendRS : public NTabletFlatExecutor::TTransactionBase<TDataShard> {
-public:
+public: 
     TTxProgressResendRS(TDataShard *self, ui64 seqno);
-    bool Execute(TTransactionContext &txc, const TActorContext &ctx) override;
-    void Complete(const TActorContext &ctx) override;
+    bool Execute(TTransactionContext &txc, const TActorContext &ctx) override; 
+    void Complete(const TActorContext &ctx) override; 
     TTxType GetTxType() const override { return TXTYPE_PROGRESS_RESEND_RS; }
-private:
-    const ui64 Seqno;
-};
-
+private: 
+    const ui64 Seqno; 
+}; 
+ 
 class TDataShard::TTxCancelTransactionProposal : public NTabletFlatExecutor::TTransactionBase<TDataShard> {
 public:
     TTxCancelTransactionProposal(TDataShard *self, ui64 txId);
@@ -294,4 +294,4 @@ private:
     bool ActivateWaitingOps = false;
 };
 
-}}
+}} 
diff --git a/ydb/core/tx/datashard/datashard_user_table.cpp b/ydb/core/tx/datashard/datashard_user_table.cpp
index 70bc940073..3061290bbe 100644
--- a/ydb/core/tx/datashard/datashard_user_table.cpp
+++ b/ydb/core/tx/datashard/datashard_user_table.cpp
@@ -1,16 +1,16 @@
 #include "datashard_user_table.h"
-
+ 
 #include <ydb/core/base/path.h>
 #include <ydb/core/tablet_flat/flat_cxx_database.h>
 #include <ydb/core/tablet_flat/tablet_flat_executed.h>
 #include <ydb/core/tablet_flat/tablet_flat_executor.h>
 
-namespace NKikimr {
+namespace NKikimr { 
 
 using NTabletFlatExecutor::TTransactionContext;
 
 namespace NDataShard {
-
+ 
 TUserTable::TUserTable(ui32 localTid, const NKikimrSchemeOp::TTableDescription& descr, ui32 shadowTid)
     : LocalTid(localTid)
     , ShadowTid(shadowTid)
@@ -596,4 +596,4 @@ void TUserTable::ApplyDefaults(TTransactionContext& txc) const
     }
 }
 
-}}
+}} 
diff --git a/ydb/core/tx/datashard/datashard_user_table.h b/ydb/core/tx/datashard/datashard_user_table.h
index 0dab30cb84..19dd4bf865 100644
--- a/ydb/core/tx/datashard/datashard_user_table.h
+++ b/ydb/core/tx/datashard/datashard_user_table.h
@@ -1,22 +1,22 @@
-#pragma once
-
+#pragma once 
+ 
 #include "datashard.h"
-
+ 
 #include <ydb/core/base/storage_pools.h>
 #include <ydb/core/scheme/scheme_tabledefs.h>
 #include <ydb/core/tablet_flat/flat_stat_table.h>
-
+ 
 #include <util/generic/ptr.h>
 #include <util/generic/hash.h>
 
-namespace NKikimr {
+namespace NKikimr { 
 
 namespace NTabletFlatExecutor {
 class TTransactionContext;
 }
 
 namespace NDataShard {
-
+ 
 //
 struct TUserTable : public TThrRefBase {
     using TPtr = TIntrusivePtr<TUserTable>;
@@ -357,7 +357,7 @@ struct TUserTable : public TThrRefBase {
     TMap<TPathId, TTableIndex> Indexes;
     TMap<TPathId, TCdcStream> CdcStreams;
     ui32 AsyncIndexCount = 0;
-
+ 
     // Tablet thread access only, updated in-place
     mutable TStats Stats;
     mutable bool StatsUpdateInProgress = false;
@@ -368,7 +368,7 @@ struct TUserTable : public TThrRefBase {
     ui32 SpecialColUpdateNo = Max<ui32>();
 
     TUserTable() { }
-
+ 
     TUserTable(ui32 localTid, const NKikimrSchemeOp::TTableDescription& descr, ui32 shadowTid); // for create
     TUserTable(const TUserTable& table, const NKikimrSchemeOp::TTableDescription& descr); // for alter
 
@@ -419,6 +419,6 @@ private:
     void CheckSpecialColumns();
     void AlterSchema();
     void ParseProto(const NKikimrSchemeOp::TTableDescription& descr);
-};
-
-}}
+}; 
+ 
+}} 
diff --git a/ydb/core/tx/datashard/datashard_ut_common.cpp b/ydb/core/tx/datashard/datashard_ut_common.cpp
index d754f7ad0e..fe581002b1 100644
--- a/ydb/core/tx/datashard/datashard_ut_common.cpp
+++ b/ydb/core/tx/datashard/datashard_ut_common.cpp
@@ -16,24 +16,24 @@
 
 #include <library/cpp/testing/unittest/registar.h>
 #include <google/protobuf/text_format.h>
-
+ 
 #include <util/system/valgrind.h>
 
-namespace NKikimr {
-
-using namespace NMiniKQL;
+namespace NKikimr { 
+ 
+using namespace NMiniKQL; 
 using namespace NSchemeShard;
 using namespace Tests;
-
+ 
 const bool ENABLE_DATASHARD_LOG = true;
 const bool DUMP_RESULT = false;
-
+ 
 void TTester::Setup(TTestActorRuntime& runtime, const TOptions& opts) {
-    if (ENABLE_DATASHARD_LOG) {
+    if (ENABLE_DATASHARD_LOG) { 
         runtime.SetLogPriority(NKikimrServices::TX_DATASHARD, NActors::NLog::PRI_TRACE);
-    }
-    runtime.SetLogPriority(NKikimrServices::MINIKQL_ENGINE, NActors::NLog::PRI_DEBUG);
-
+    } 
+    runtime.SetLogPriority(NKikimrServices::MINIKQL_ENGINE, NActors::NLog::PRI_DEBUG); 
+ 
     ui32 domainId = 0;
     ui32 planResolution = 500;
 
@@ -56,46 +56,46 @@ void TTester::Setup(TTestActorRuntime& runtime, const TOptions& opts) {
 
     app.AddDomain(domain.Release());
     SetupTabletServices(runtime, &app);
-}
-
+} 
+ 
 TTester::TTester(ESchema schema, const TOptions& opts)
     : Schema(schema)
     , LastTxId(0)
     , LastStep(opts.FirstStep)
-{
+{ 
     Setup(Runtime, opts);
-    Sender = Runtime.AllocateEdgeActor();
+    Sender = Runtime.AllocateEdgeActor(); 
 
     // Schemeshard is only used to receive notifications
     CreateTestBootstrapper(Runtime, CreateTestTabletInfo(FAKE_SCHEMESHARD_TABLET_ID, TTabletTypes::FLAT_SCHEMESHARD), &CreateFlatTxSchemeShard);
     CreateTestBootstrapper(Runtime, CreateTestTabletInfo(FAKE_TX_ALLOCATOR_TABLET_ID, TTabletTypes::TX_ALLOCATOR), &CreateTxAllocator);
     CreateSchema(schema, opts);
-}
-
+} 
+ 
 TTester::TTester(ESchema schema, const TString& dispatchName, std::function<void (TTestActorRuntime&)> setup,
                  bool& activeZone, const TOptions& opts)
     : Schema(schema)
     , LastTxId(0)
     , LastStep(1)
-{
+{ 
     Setup(Runtime, opts);
-    setup(Runtime);
-    Sender = Runtime.AllocateEdgeActor();
-    AllowIncompleteResult = (dispatchName != INITIAL_TEST_DISPATCH_NAME);
-    ActiveZone = &activeZone;
-    DispatchName = dispatchName;
+    setup(Runtime); 
+    Sender = Runtime.AllocateEdgeActor(); 
+    AllowIncompleteResult = (dispatchName != INITIAL_TEST_DISPATCH_NAME); 
+    ActiveZone = &activeZone; 
+    DispatchName = dispatchName; 
 
     // Schemeshard is only used to receive notifications
     CreateTestBootstrapper(Runtime, CreateTestTabletInfo(FAKE_SCHEMESHARD_TABLET_ID, TTabletTypes::FLAT_SCHEMESHARD), &CreateFlatTxSchemeShard);
     CreateTestBootstrapper(Runtime, CreateTestTabletInfo(FAKE_TX_ALLOCATOR_TABLET_ID, TTabletTypes::TX_ALLOCATOR), &CreateTxAllocator);
     CreateSchema(schema, opts);
-}
-
+} 
+ 
 void TTester::EmptyShardKeyResolver(TKeyDesc& key) {
     Y_UNUSED(key);
     Y_FAIL();
-}
-
+} 
+ 
 void TTester::SingleShardKeyResolver(TKeyDesc& key) {
     key.Status = TKeyDesc::EStatus::Ok;
     key.Partitions.push_back(TKeyDesc::TPartitionInfo((ui64)TTestTxConfig::TxTablet0));
@@ -151,17 +151,17 @@ void TTester::CreateDataShard(TFakeMiniKQLProxy& proxy, ui64 tabletId, const TSt
     TActorId actorId = CreateTestBootstrapper(Runtime, CreateTestTabletInfo(tabletId, TTabletTypes::FLAT_DATASHARD),
         &::NKikimr::CreateDataShard);
     Y_UNUSED(actorId);
-
-    TDispatchOptions options;
-    options.FinalEvents.push_back(TDispatchOptions::TFinalEventCondition(TEvTablet::EvBoot));
-    Runtime.DispatchEvents(options);
-
+ 
+    TDispatchOptions options; 
+    options.FinalEvents.push_back(TDispatchOptions::TFinalEventCondition(TEvTablet::EvBoot)); 
+    Runtime.DispatchEvents(options); 
+ 
     UNIT_ASSERT_EQUAL(proxy.ExecSchemeCreateTable(schemeText, {tabletId}), IEngineFlat::EStatus::Complete);
-
+ 
     RebootTablet(Runtime, tabletId, Sender);
-
-    //Runtime.EnableScheduleForActor(actorId, true);
-
+ 
+    //Runtime.EnableScheduleForActor(actorId, true); 
+ 
     if (withRegister) {
         RegisterTableInResolver(schemeText);
     }
@@ -190,36 +190,36 @@ void TTester::RegisterTableInResolver(const TString& schemeText)
         for (size_t ki = 0; ki < tdesc.KeyColumnIdsSize(); ki++) {
             if (tdesc.GetKeyColumnIds(ki) == c.GetId()) {
                 keyIdx = ki;
-            }
-        }
+            } 
+        } 
         table.Columns.insert(std::make_pair(c.GetName(), TColumn{c.GetId(), keyIdx, c.GetTypeId(), 0}));
-    }
+    } 
     DbSchemeResolver.AddTable(table);
-}
-
+} 
+ 
 
 void TTester::CreateSchema(ESchema schema, const TOptions& opts) {
     TString keyValueSchemeText =
-        "Name: \"table1\"\n"
+        "Name: \"table1\"\n" 
         "Id_Deprecated: 13\n"
         "Path: \"/Root/table1\"\n"
         "Columns { Id: 34 Name: \"key\" TypeId: " + ToString<int>(NScheme::NTypeIds::Uint32) + " }\n"
         "Columns { Id: 56 Name: \"value\" TypeId: " + ToString<int>(NScheme::NTypeIds::Utf8) + " }\n"
         "Columns { Id: 57 Name: \"uint\" TypeId: " + ToString<int>(NScheme::NTypeIds::Uint32) + " }\n"
-        "KeyColumnIds: [ 34 ]\n"
-        ;
-
+        "KeyColumnIds: [ 34 ]\n" 
+        ; 
+ 
     TString doubleKeyValueSchemeText =
-        "Name: \"table2\"\n"
+        "Name: \"table2\"\n" 
         "PathId { OwnerId: " + ToString(FAKE_SCHEMESHARD_TABLET_ID) + " LocalId: 14 }\n"
 
         "Path: \"/Root/table2\"\n"
         "Columns { Id: 34 Name: \"key1\" TypeId: " + ToString<int>(NScheme::NTypeIds::Uint32) + " }\n"
         "Columns { Id: 35 Name: \"key2\" TypeId: " + ToString<int>(NScheme::NTypeIds::Utf8) + " }\n"
         "Columns { Id: 56 Name: \"value\" TypeId: " + ToString<int>(NScheme::NTypeIds::Utf8) + " }\n"
-        "KeyColumnIds: [ 34, 35 ]\n"
-        ;
-
+        "KeyColumnIds: [ 34, 35 ]\n" 
+        ; 
+ 
     TString doubleKeyValueExternalSchemeText =
         "Name: \"table2\"\n"
         "PathId { OwnerId: " + ToString(FAKE_SCHEMESHARD_TABLET_ID) + " LocalId: 14 }\n"
@@ -271,10 +271,10 @@ void TTester::CreateSchema(ESchema schema, const TOptions& opts) {
         CreateDataShard(proxy, TTestTxConfig::TxTablet2, keyValueSchemeText);
         break;
     }
-}
-
+} 
+ 
 //
-
+ 
 TRuntimeNode TEngineHolder::ProgramText2Bin(TTester& tester, const TString& programText) {
     auto expr = NYql::ParseText(programText);
 
@@ -344,7 +344,7 @@ ui32 TFakeProxyTx::SetProgram(TTester& tester, const TString& programText) {
     UNIT_ASSERT_VALUES_EQUAL(ShardsCount_, resolvedShards.size());
     return ShardsCount_;
 }
-
+ 
 ui32 TFakeProxyTx::GetShardProgram(ui32 idx, TString& outTxBody) {
     IEngineFlat::TShardData shardData;
     auto result = Engine->GetAffectedShard(idx, shardData);
@@ -525,12 +525,12 @@ IEngineFlat::EStatus TFakeMiniKQLProxy::Execute(const TString& programText,
         ui64 stepId = ++LastStep_;
         Plan(stepId, txs, waitForResult);
         status = tx.GetStatus(false);
-    }
+    } 
     if (waitForResult)
         out = tx.GetResult();
-    return status;
-}
-
+    return status; 
+} 
+ 
 IEngineFlat::EStatus TFakeMiniKQLProxy::ExecSchemeCreateTable(const TString& tableDesc, const TVector<ui64>& shards) {
     ui64 txId = ++LastTxId_;
     ui64 stepId = ++LastStep_;
@@ -546,19 +546,19 @@ IEngineFlat::EStatus TFakeMiniKQLProxy::ExecSchemeCreateTable(const TString& tab
     UNIT_ASSERT(tx.MaxStep == Max<ui64>());
     LastStep_ = Plan(stepId, txs);
     return IEngineFlat::EStatus::Complete;
-}
-
+} 
+ 
 #if 0
-void TFakeMiniKQLProxy::Cancel(ui64 txId) {
+void TFakeMiniKQLProxy::Cancel(ui64 txId) { 
     for (auto shard : proxyTx.Shards) {
-        auto cancel = new TEvDataShard::TEvCancelTransactionProposal(txId);
-        Tester.Runtime.SendToPipe(shard, Tester.Sender, cancel);
-    }
-
-    Tester.Runtime.DispatchEvents();
-}
+        auto cancel = new TEvDataShard::TEvCancelTransactionProposal(txId); 
+        Tester.Runtime.SendToPipe(shard, Tester.Sender, cancel); 
+    } 
+ 
+    Tester.Runtime.DispatchEvents(); 
+} 
 #endif
-
+ 
 void TFakeMiniKQLProxy::ProposeSchemeCreateTable(TFakeProxyTx& tx, const TVector<ui64>& shards) {
     const TString& schemaText = tx.TxBody();
     NKikimrSchemeOp::TTableDescription tableDesc;
@@ -582,70 +582,70 @@ void TFakeMiniKQLProxy::ProposeScheme(TFakeProxyTx& tx, const TVector<ui64>& sha
     NKikimrTxDataShard::ETransactionKind kind = NKikimrTxDataShard::TX_KIND_SCHEME;
 
     ui64 txId = tx.TxId();
-    bool hasErrors = false;
+    bool hasErrors = false; 
     for (ui32 i = 0; i < shards.size(); ++i) {
-        ui64 shardId = shards[i];
+        ui64 shardId = shards[i]; 
         auto txBody = txBodyForShard(shards[i]).SerializeAsString();
         ui32 txFlags = NDataShard::TTxFlags::Default;
-
-        for (;;) {
+ 
+        for (;;) { 
             auto proposal = new TEvDataShard::TEvProposeTransaction(kind, FAKE_SCHEMESHARD_TABLET_ID,
                 Tester.Sender, txId, txBody, NKikimrSubDomains::TProcessingParams(), txFlags);
-            Tester.Runtime.SendToPipe(shardId, Tester.Sender, proposal);
-            TAutoPtr<IEventHandle> handle;
-            auto event = Tester.Runtime.GrabEdgeEventIf<TEvDataShard::TEvProposeTransactionResult>(handle,
-                [=](const TEvDataShard::TEvProposeTransactionResult& event) {
-                return event.GetTxId() == txId && event.GetOrigin() == shardId;
-            });
-
-            UNIT_ASSERT(event);
+            Tester.Runtime.SendToPipe(shardId, Tester.Sender, proposal); 
+            TAutoPtr<IEventHandle> handle; 
+            auto event = Tester.Runtime.GrabEdgeEventIf<TEvDataShard::TEvProposeTransactionResult>(handle, 
+                [=](const TEvDataShard::TEvProposeTransactionResult& event) { 
+                return event.GetTxId() == txId && event.GetOrigin() == shardId; 
+            }); 
+ 
+            UNIT_ASSERT(event); 
             UNIT_ASSERT_EQUAL(event->GetTxKind(), kind);
             if (event->IsTryLater())
-                continue;
-
+                continue; 
+ 
             if (event->IsError()) {
-                hasErrors = true;
-                for (auto err : event->Record.GetError()) {
-                    Cerr << "DataShard error: " << shardId << ", kind: " <<
-                        NKikimrTxDataShard::TError::EKind_Name(err.GetKind()) << ", reason: " << err.GetReason() << Endl;
-                }
-
-                break;
-            }
-
+                hasErrors = true; 
+                for (auto err : event->Record.GetError()) { 
+                    Cerr << "DataShard error: " << shardId << ", kind: " << 
+                        NKikimrTxDataShard::TError::EKind_Name(err.GetKind()) << ", reason: " << err.GetReason() << Endl; 
+                } 
+ 
+                break; 
+            } 
+ 
             if (event->IsComplete())
-                break;
-
+                break; 
+ 
             UNIT_ASSERT(event->IsPrepared());
             tx.Shards.push_back(shardId);
             tx.MinStep = Max(tx.MinStep, event->Record.GetMinStep());
             tx.MaxStep = Min(tx.MaxStep, event->Record.GetMaxStep());
-            break;
-        }
-    }
-
+            break; 
+        } 
+    } 
+ 
     UNIT_ASSERT(!hasErrors);
     UNIT_ASSERT(!tx.Shards.empty());
-}
-
+} 
+ 
 void TFakeMiniKQLProxy::Propose(TFakeProxyTx& tx, bool holdImmediate) {
     ui64 txId = tx.TxId();
-
+ 
     ui32 shardsCount = tx.SetProgram(Tester);
     if (holdImmediate && tx.Immediate())
         return;
-
+ 
     TSet<ui64> shards;
-    for (ui32 i = 0; i < shardsCount; ++i) {
+    for (ui32 i = 0; i < shardsCount; ++i) { 
         TString txBody;
         ui32 shard = tx.GetShardProgram(i, txBody);
         shards.insert(shard);
-
+ 
         auto proposal = new TEvDataShard::TEvProposeTransaction(
             tx.TxKind(), Tester.Sender, txId, txBody, tx.TxFlags());
         Tester.Runtime.SendToPipe(shard, Tester.Sender, proposal);
     }
-
+ 
     ResolveShards(shards);
 
     while (shards) {
@@ -657,14 +657,14 @@ void TFakeMiniKQLProxy::Propose(TFakeProxyTx& tx, bool holdImmediate) {
 
         UNIT_ASSERT(!event->IsTryLater()); // need resend otherwise
         UNIT_ASSERT_EQUAL(event->GetTxKind(), tx.TxKind());
-
+ 
         ui64 shard = event->GetOrigin();
 
         tx.AddProposeShardResult(shard, event);
         shards.erase(shard);
-    }
-}
-
+    } 
+} 
+ 
 void TFakeMiniKQLProxy::ResolveShards(const TSet<ui64>& shards) {
     for (ui64 shard : shards) {
         auto event = new TEvDataShard::TEvGetShardState(Tester.Sender);
@@ -692,7 +692,7 @@ ui64 TFakeMiniKQLProxy::Plan(ui64 stepId, const TMap<ui64, TFakeProxyTx::TPtr>&
     using TEvStreamQuotaRequest = TEvTxProcessing::TEvStreamQuotaRequest;
     using TEvStreamQuotaResponse = TEvTxProcessing::TEvStreamQuotaResponse;
     using TEvStreamDataAck = TEvTxProcessing::TEvStreamDataAck;
-
+ 
     TSet<ui64> immediateTxs;
     THashMap<ui64, TVector<ui64>> plans;
     THashMap<ui64, TVector<ui64>> imm2onlineTxs;
@@ -718,7 +718,7 @@ ui64 TFakeMiniKQLProxy::Plan(ui64 stepId, const TMap<ui64, TFakeProxyTx::TPtr>&
             }
         }
     }
-
+ 
     // send plan step
     for (const auto& pair : plans) {
         ui64 shard = pair.first;
@@ -730,10 +730,10 @@ ui64 TFakeMiniKQLProxy::Plan(ui64 stepId, const TMap<ui64, TFakeProxyTx::TPtr>&
                 plannedTx->SetTxId(txId);
                 ActorIdToProto(Tester.Sender, plannedTx->MutableAckTo());
             }
-        }
+        } 
         Tester.Runtime.SendToPipe(shard, Tester.Sender, planStep);
-    }
-
+    } 
+ 
     // prepare immediate
     TDeque<std::pair<ui64, THolder<TEvDataShard::TEvProposeTransaction>>> immEvents;
     for (ui64 txId : immediateTxs) {
@@ -814,10 +814,10 @@ ui64 TFakeMiniKQLProxy::Plan(ui64 stepId, const TMap<ui64, TFakeProxyTx::TPtr>&
 #if 0
         Cerr << "acks: " << acks.size() << " plans: " << plans.size() << " results: " << results.size() << Endl;
 #endif
-        TAutoPtr<IEventHandle> handle;
+        TAutoPtr<IEventHandle> handle; 
         auto eventTuple = Tester.Runtime.GrabEdgeEvents<TEvPlanStepAck, TEvPlanStepAccepted, TEvProposeTransactionResult,
                                                         TEvStreamClearanceRequest>(handle);
-
+ 
         switch (handle->Type) {
             case TEvPlanStepAck::EventType: {
                 auto event = std::get<TEvPlanStepAck*>(eventTuple);
@@ -839,7 +839,7 @@ ui64 TFakeMiniKQLProxy::Plan(ui64 stepId, const TMap<ui64, TFakeProxyTx::TPtr>&
                 auto event = std::get<TEvProposeTransactionResult*>(eventTuple);
                 ui64 txId = event->GetTxId();
                 ui64 shard = event->GetOrigin();
-
+ 
                 if (event->IsPrepared()) {
                     Cerr << "immediate -> online tx " << txId << Endl;
                     results.erase(std::make_pair(shard, txId));
@@ -852,7 +852,7 @@ ui64 TFakeMiniKQLProxy::Plan(ui64 stepId, const TMap<ui64, TFakeProxyTx::TPtr>&
                     results.erase(std::make_pair(shard, txId));
                     break;
                 }
-
+ 
                 auto it = txs.find(txId);
                 if (it == txs.end())
                     continue;
@@ -896,9 +896,9 @@ ui64 TFakeMiniKQLProxy::Plan(ui64 stepId, const TMap<ui64, TFakeProxyTx::TPtr>&
                     if (builder->IsComplete()) {
                         results.erase(std::make_pair(shard, txId));
                     }
-                }
+                } 
                 break;
-            }
+            } 
             case TEvStreamClearanceRequest::EventType: {
                 auto event = std::get<TEvStreamClearanceRequest*>(eventTuple);
                 ui64 txId = event->Record.GetTxId();
@@ -906,8 +906,8 @@ ui64 TFakeMiniKQLProxy::Plan(ui64 stepId, const TMap<ui64, TFakeProxyTx::TPtr>&
                 streams.erase(std::make_pair(shard, txId));
                 Tester.Runtime.SendToPipe(shard, Tester.Sender, new TEvStreamClearancePending(txId));
             }
-        }
-    }
+        } 
+    } 
 
     // exec imm2online
 
@@ -983,8 +983,8 @@ ui64 TFakeMiniKQLProxy::Plan(ui64 stepId, const TMap<ui64, TFakeProxyTx::TPtr>&
     }
 
     return stepId;
-}
-
+} 
+ 
 //
 
 TKeyExtractor::TKeyExtractor(TTester& tester, TString programText) {
@@ -1004,30 +1004,30 @@ TKeyExtractor::TKeyExtractor(TTester& tester, TString programText) {
 //
 
 TDatashardInitialEventsFilter::TDatashardInitialEventsFilter(const TVector<ui64>& tabletIds)
-    : TabletIds(tabletIds)
-{
-}
-
-TTestActorRuntime::TEventFilter TDatashardInitialEventsFilter::Prepare() {
-    RemainTablets = TabletIds;
+    : TabletIds(tabletIds) 
+{ 
+} 
+ 
+TTestActorRuntime::TEventFilter TDatashardInitialEventsFilter::Prepare() { 
+    RemainTablets = TabletIds; 
     return [&](TTestActorRuntimeBase& runtime, TAutoPtr<IEventHandle>& event) {
-        return (*this)(runtime, event);
-    };
-}
-
+        return (*this)(runtime, event); 
+    }; 
+} 
+ 
 bool TDatashardInitialEventsFilter::operator()(TTestActorRuntimeBase& runtime, TAutoPtr<IEventHandle>& event) {
     Y_UNUSED(runtime);
-    if (event->GetTypeRewrite() == TEvTxProcessing::EvPlanStepAck) {
-        ui64 tabletId = reinterpret_cast<TEvTxProcessing::TEvPlanStepAck::TPtr&>(event)->Get()->Record.GetTabletId();
-        auto it = Find(RemainTablets.begin(), RemainTablets.end(), tabletId);
-        if (it != RemainTablets.end())
-            RemainTablets.erase(it);
-        return true;
-    }
-
-    return !RemainTablets.empty();
-}
-
+    if (event->GetTypeRewrite() == TEvTxProcessing::EvPlanStepAck) { 
+        ui64 tabletId = reinterpret_cast<TEvTxProcessing::TEvPlanStepAck::TPtr&>(event)->Get()->Record.GetTabletId(); 
+        auto it = Find(RemainTablets.begin(), RemainTablets.end(), tabletId); 
+        if (it != RemainTablets.end()) 
+            RemainTablets.erase(it); 
+        return true; 
+    } 
+ 
+    return !RemainTablets.empty(); 
+} 
+ 
 THolder<NKqp::TEvKqp::TEvQueryRequest> MakeSQLRequest(const TString &sql,
                                                       bool dml)
 {
@@ -1040,7 +1040,7 @@ THolder<NKqp::TEvKqp::TEvQueryRequest> MakeSQLRequest(const TString &sql,
                                               : NKikimrKqp::QUERY_TYPE_SQL_DDL);
     request->Record.MutableRequest()->SetQuery(sql);
     return request;
-}
+} 
 
 void InitRoot(Tests::TServer::TPtr server,
               TActorId sender)
diff --git a/ydb/core/tx/datashard/datashard_ut_common.h b/ydb/core/tx/datashard/datashard_ut_common.h
index 4b5d7fe4ea..f7245a8ebe 100644
--- a/ydb/core/tx/datashard/datashard_ut_common.h
+++ b/ydb/core/tx/datashard/datashard_ut_common.h
@@ -1,4 +1,4 @@
-#pragma once
+#pragma once 
 
 #include "datashard.h"
 #include "datashard_impl.h"
@@ -9,17 +9,17 @@
 #include <ydb/core/testlib/minikql_compile.h>
 #include <ydb/core/testlib/tablet_helpers.h>
 #include <ydb/core/testlib/test_client.h>
-
+ 
 #include <library/cpp/testing/unittest/registar.h>
 
 
-namespace NKikimr {
-
+namespace NKikimr { 
+ 
 class TBalanceCoverageBuilder;
 class TEngineHolder;
 class TFakeMiniKQLProxy;
 class TFakeProxyTx;
-
+ 
 constexpr ui64 FAKE_SCHEMESHARD_TABLET_ID = 4200;
 constexpr ui64 FAKE_TX_ALLOCATOR_TABLET_ID = 4201;
 
@@ -30,7 +30,7 @@ public:
     friend class TFakeMiniKQLProxy;
     friend class TFakeProxyTx;
     friend class TFakeScanTx;
-
+ 
     using TKeyResolver = std::function<void(TKeyDesc&)>;
 
     enum ESchema {
@@ -107,20 +107,20 @@ private:
     ui64 LastStep;
     TMockDbSchemeResolver DbSchemeResolver;
     TString DispatchName = "NONE";
-    bool AllowIncompleteResult = false;
-    bool* ActiveZone = nullptr;
-    TDuration Timeout = TDuration::Minutes(10);
-
+    bool AllowIncompleteResult = false; 
+    bool* ActiveZone = nullptr; 
+    TDuration Timeout = TDuration::Minutes(10); 
+ 
     TKeyResolver GetKeyResolver() const;
     void CreateSchema(ESchema schema, const TOptions& opts);
     void CreateDataShard(TFakeMiniKQLProxy& proxy, ui64 tabletId, const TString& schemeText, bool withRegister = false);
     void RegisterTableInResolver(const TString& schemeText);
-
+ 
     static void EmptyShardKeyResolver(TKeyDesc& key);
     static void SingleShardKeyResolver(TKeyDesc& key); // uses TTestTxConfig::TxTablet0
     static void ThreeShardPointKeyResolver(TKeyDesc& key); // uses TTestTxConfig::TxTablet0,1,2
-};
-
+}; 
+ 
 ///
 struct TExpectedReadSet {
     struct TWaitFor {
@@ -250,8 +250,8 @@ private:
 };
 
 ///
-class TFakeMiniKQLProxy {
-public:
+class TFakeMiniKQLProxy { 
+public: 
     using IEngineFlat = NMiniKQL::IEngineFlat;
     //using TEvProgressTransaction = NDataShard::TDataShard::TEvPrivate::TEvProgressTransaction;
 
@@ -261,7 +261,7 @@ public:
         , LastStep_(tester.LastStep)
         , RebootOnDelay(false)
     {}
-
+ 
     // Propose + Plan (if needed) in own step
     IEngineFlat::EStatus ExecSchemeCreateTable(const TString& schemaText, const TVector<ui64>& shards);
     IEngineFlat::EStatus Execute(const TString& programText, NKikimrMiniKQL::TResult& out,
@@ -286,7 +286,7 @@ public:
     void EnqueueScan(const TString& programText, std::function<bool(TFakeProxyTx&)> check = DoNothing,
                  ui32 flags = NDataShard::TTxFlags::ForceOnline);
     void ExecQueue();
-
+ 
     static bool DoNothing(TFakeProxyTx&) {
         return true;
     }
@@ -302,8 +302,8 @@ public:
         DelayedData.emplace_back(shardTx);
     }
 
-private:
-    TTester& Tester;
+private: 
+    TTester& Tester; 
     ui64& LastTxId_;
     ui64& LastStep_;
     TVector<TFakeProxyTx::TPtr> TxQueue;
@@ -319,15 +319,15 @@ private:
         const std::function<NKikimrTxDataShard::TFlatSchemeTransaction(ui64)>& txBodyForShard);
     ui64 Plan(ui64 stepId, const TMap<ui64, TFakeProxyTx::TPtr>& txs, bool waitForResult = true);
     void ResolveShards(const TSet<ui64>& shards);
-};
-
+}; 
+ 
 ///
 class TDatashardInitialEventsFilter {
-public:
+public: 
     TDatashardInitialEventsFilter(const TVector<ui64>& tabletIds);
-    TTestActorRuntime::TEventFilter Prepare();
+    TTestActorRuntime::TEventFilter Prepare(); 
     bool operator()(TTestActorRuntimeBase& runtime, TAutoPtr<IEventHandle>& event);
-
+ 
     TDatashardInitialEventsFilter(const TDatashardInitialEventsFilter&) = delete;
     TDatashardInitialEventsFilter(TDatashardInitialEventsFilter&&) = default;
 
@@ -341,11 +341,11 @@ public:
 
     const TVector<ui64> Tablets() const { return TabletIds; }
 
-private:
+private: 
     const TVector<ui64> TabletIds;
     TVector<ui64> RemainTablets;
-};
-
+}; 
+ 
 ///
 class TKeyExtractor : public TEngineHolder {
 public:
@@ -625,4 +625,4 @@ struct IsTxResultComplete {
 
 void WaitTabletBecomesOffline(Tests::TServer::TPtr server, ui64 tabletId);
 
-}
+} 
diff --git a/ydb/core/tx/datashard/datashard_ut_init.cpp b/ydb/core/tx/datashard/datashard_ut_init.cpp
index 818e30ab0c..fbf89acdef 100644
--- a/ydb/core/tx/datashard/datashard_ut_init.cpp
+++ b/ydb/core/tx/datashard/datashard_ut_init.cpp
@@ -6,11 +6,11 @@
 #include <ydb/core/tx/schemeshard/schemeshard.h>
 #include <ydb/core/util/pb.h>
 #include <ydb/public/lib/deprecated/kicli/kicli.h>
-
+ 
 #include <util/string/printf.h>
 
-namespace NKikimr {
-
+namespace NKikimr { 
+ 
 using namespace NSchemeShard;
 using namespace Tests;
 using NClient::TValue;
@@ -97,22 +97,22 @@ Y_UNIT_TEST_SUITE(TTxDataShardTestInit) {
     Y_UNIT_TEST(TestGetShardStateAfterInitialization) {
         TTestBasicRuntime runtime;
         TTester::Setup(runtime);
-
+ 
         TActorId sender = runtime.AllocateEdgeActor();
         CreateTestBootstrapper(runtime, CreateTestTabletInfo(TTestTxConfig::TxTablet0, TTabletTypes::FLAT_DATASHARD), &CreateDataShard);
-
-        TDispatchOptions options;
-        options.FinalEvents.push_back(TDispatchOptions::TFinalEventCondition(TEvTablet::EvBoot));
-        runtime.DispatchEvents(options);
-
+ 
+        TDispatchOptions options; 
+        options.FinalEvents.push_back(TDispatchOptions::TFinalEventCondition(TEvTablet::EvBoot)); 
+        runtime.DispatchEvents(options); 
+ 
         Y_UNUSED(sender);
         ForwardToTablet(runtime, TTestTxConfig::TxTablet0, sender, new TEvDataShard::TEvGetShardState(sender));
-        TAutoPtr<IEventHandle> handle;
-        auto event = runtime.GrabEdgeEvent<TEvDataShard::TEvGetShardStateResult>(handle);
-        UNIT_ASSERT(event);
+        TAutoPtr<IEventHandle> handle; 
+        auto event = runtime.GrabEdgeEvent<TEvDataShard::TEvGetShardStateResult>(handle); 
+        UNIT_ASSERT(event); 
         UNIT_ASSERT_EQUAL(event->GetOrigin(), TTestTxConfig::TxTablet0);
         UNIT_ASSERT_EQUAL(event->GetState(), NDataShard::TShardState::WaitScheme);
-    }
+    } 
 
     void TestTablePath(bool oldCreate, bool restart)
     {
@@ -198,6 +198,6 @@ Y_UNIT_TEST_SUITE(TTxDataShardTestInit) {
     Y_UNIT_TEST(TestResolvePathAfterRestart) {
         TestTablePath(true, true);
     }
-}
-
-}
+} 
+ 
+} 
diff --git a/ydb/core/tx/datashard/datashard_ut_minikql.cpp b/ydb/core/tx/datashard/datashard_ut_minikql.cpp
index 7974e47486..88a3be9df8 100644
--- a/ydb/core/tx/datashard/datashard_ut_minikql.cpp
+++ b/ydb/core/tx/datashard/datashard_ut_minikql.cpp
@@ -2,32 +2,32 @@
 
 #include <ydb/public/lib/deprecated/kicli/kicli.h>
 
-
-namespace NKikimr {
-
+ 
+namespace NKikimr { 
+ 
 using NClient::TValue;
 using IEngineFlat = NMiniKQL::IEngineFlat;
-
+ 
 
 Y_UNIT_TEST_SUITE(TTxDataShardMiniKQL) {
-
+ 
 Y_UNIT_TEST(ReadConstant) {
     TTester t(TTester::ESchema_KV);
     TFakeMiniKQLProxy proxy(t);
-
+ 
     auto programText = R"___((
         (return (AsList (SetResult 'res1 (Int32 '2016))))
     ))___";
-
+ 
     UNIT_ASSERT_EQUAL(proxy.Execute(programText), IEngineFlat::EStatus::Complete);
 }
-
+ 
 //
-
+ 
 Y_UNIT_TEST(Write) {
     TTester t(TTester::ESchema_KV);
     TFakeMiniKQLProxy proxy(t);
-
+ 
     auto programText = R"___((
         (let row '('('key (Uint32 '42))))
         (let myUpd '(
@@ -37,16 +37,16 @@ Y_UNIT_TEST(Write) {
         ))
         (return pgmReturn)
     ))___";
-
+ 
     UNIT_ASSERT_EQUAL(proxy.Execute(programText), IEngineFlat::EStatus::Complete);
 }
-
+ 
 //
-
+ 
 Y_UNIT_TEST(ReadAfterWrite) {
     TTester t(TTester::ESchema_KV);
     TFakeMiniKQLProxy proxy(t);
-
+ 
     {
         auto programText = R"___((
             (let row '('('key (Uint32 '42))))
@@ -57,10 +57,10 @@ Y_UNIT_TEST(ReadAfterWrite) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         UNIT_ASSERT_EQUAL(proxy.Execute(programText), IEngineFlat::EStatus::Complete);
     }
-
+ 
     {
         auto programText = R"___((
             (let row '('('key (Uint32 '42))))
@@ -70,7 +70,7 @@ Y_UNIT_TEST(ReadAfterWrite) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -78,9 +78,9 @@ Y_UNIT_TEST(ReadAfterWrite) {
         TValue row = value["myRes"];
         TString data = row["value"];
         UNIT_ASSERT_EQUAL(data, "Robert");
-    }
+    } 
 }
-
+ 
 Y_UNIT_TEST(ReadSpecialColumns) {
     TTester t(TTester::ESchema_SpecialKV);
     TFakeMiniKQLProxy proxy(t);
@@ -157,7 +157,7 @@ Y_UNIT_TEST(ReadSpecialColumns) {
 }
 
 //
-
+ 
 Y_UNIT_TEST(ReadNonExisting) {
     TTester t(TTester::ESchema_KV);
     TFakeMiniKQLProxy proxy(t);
@@ -184,7 +184,7 @@ Y_UNIT_TEST(ReadNonExisting) {
 Y_UNIT_TEST(WriteEraseRead) {
     TTester t(TTester::ESchema_KV);
     TFakeMiniKQLProxy proxy(t);
-
+ 
     {
         auto programText = R"___((
             (let row '('('key (Uint32 '42))))
@@ -195,10 +195,10 @@ Y_UNIT_TEST(WriteEraseRead) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         UNIT_ASSERT_EQUAL(proxy.Execute(programText), IEngineFlat::EStatus::Complete);
     }
-
+ 
     {
         auto programText = R"___((
             (let row '('('key (Uint32 '42))))
@@ -207,10 +207,10 @@ Y_UNIT_TEST(WriteEraseRead) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         UNIT_ASSERT_EQUAL(proxy.Execute(programText), IEngineFlat::EStatus::Complete);
     }
-
+ 
     {
         auto programText = R"___((
             (let row '('('key (Uint32 '42))))
@@ -220,22 +220,22 @@ Y_UNIT_TEST(WriteEraseRead) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
         TValue value = TValue::Create(res.GetValue(), res.GetType());
         TValue row = value["myRes"];
         UNIT_ASSERT(!row.HaveValue());
-    }
+    } 
 }
-
+ 
 //
-
+ 
 Y_UNIT_TEST(SelectRange) {
     TTester t(TTester::ESchema_KV);
     TFakeMiniKQLProxy proxy(t);
-
+ 
     {
         auto programText = R"___((
             (let row1 '('('key (Uint32 '345))))
@@ -254,10 +254,10 @@ Y_UNIT_TEST(SelectRange) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         UNIT_ASSERT_EQUAL(proxy.Execute(programText), IEngineFlat::EStatus::Complete);
     }
-
+ 
     { // Erase one row
         auto programText = R"___((
             (let row '('('key (Uint32 '346))))
@@ -280,7 +280,7 @@ Y_UNIT_TEST(SelectRange) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -296,7 +296,7 @@ Y_UNIT_TEST(SelectRange) {
         UNIT_ASSERT_EQUAL(TString(row1["value"]), "Robert");
         UNIT_ASSERT_EQUAL(TString(row2["value"]), "Paulson");
     }
-
+ 
     {
         auto programText = R"___((
             (let range '('ExcFrom '('key (Uint32 '345) (Void))))
@@ -307,7 +307,7 @@ Y_UNIT_TEST(SelectRange) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -320,7 +320,7 @@ Y_UNIT_TEST(SelectRange) {
         UNIT_ASSERT_EQUAL(ui32(row2["key"]), 347);
         UNIT_ASSERT_EQUAL(TString(row2["value"]), "Paulson");
     }
-
+ 
     {
         auto programText = R"___((
             (let range '('IncFrom '('key (Uint32 '345) (Void))))
@@ -331,7 +331,7 @@ Y_UNIT_TEST(SelectRange) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -347,7 +347,7 @@ Y_UNIT_TEST(SelectRange) {
         UNIT_ASSERT_EQUAL(TString(row1["value"]), "Robert");
         UNIT_ASSERT_EQUAL(TString(row2["value"]), "Paulson");
     }
-
+ 
     {
         auto programText = R"___((
             (let range '('IncFrom 'IncTo '('key (Uint32 '345) (Uint32 '347))))
@@ -358,7 +358,7 @@ Y_UNIT_TEST(SelectRange) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -374,7 +374,7 @@ Y_UNIT_TEST(SelectRange) {
         UNIT_ASSERT_EQUAL(TString(row1["value"]), "Robert");
         UNIT_ASSERT_EQUAL(TString(row2["value"]), "Paulson");
     }
-
+ 
     {
         auto programText = R"___((
             (let range '('ExcFrom 'IncTo '('key (Uint32 '345) (Uint32 '347))))
@@ -385,7 +385,7 @@ Y_UNIT_TEST(SelectRange) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -398,7 +398,7 @@ Y_UNIT_TEST(SelectRange) {
         UNIT_ASSERT_EQUAL(ui32(row2["key"]), 347);
         UNIT_ASSERT_EQUAL(TString(row2["value"]), "Paulson");
     }
-
+ 
     {
         auto programText = R"___((
             (let range '('IncFrom 'ExcTo '('key (Uint32 '345) (Uint32 '347))))
@@ -409,7 +409,7 @@ Y_UNIT_TEST(SelectRange) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -422,7 +422,7 @@ Y_UNIT_TEST(SelectRange) {
         UNIT_ASSERT_EQUAL(ui32(row1["key"]), 345);
         UNIT_ASSERT_EQUAL(TString(row1["value"]), "Robert");
     }
-
+ 
     {
         auto programText = R"___((
             (let range '('ExcFrom 'ExcTo '('key (Uint32 '345) (Uint32 '347))))
@@ -433,7 +433,7 @@ Y_UNIT_TEST(SelectRange) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -442,15 +442,15 @@ Y_UNIT_TEST(SelectRange) {
         UNIT_ASSERT_EQUAL(bool(rs0["Truncated"]), false);
         TValue rsl = rs0["List"];
         UNIT_ASSERT_EQUAL(rsl.Size(), 0);
-    }
+    } 
 }
-
+ 
 //
-
+ 
 Y_UNIT_TEST(SelectRangeWithNotFullKey) {
     TTester t(TTester::ESchema_DoubleKV);
     TFakeMiniKQLProxy proxy(t);
-
+ 
     {
         auto programText = R"___((
             (let row1 '('('key1 (Uint32 '345)) '('key2 (Utf8 'id123))))
@@ -473,10 +473,10 @@ Y_UNIT_TEST(SelectRangeWithNotFullKey) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         UNIT_ASSERT_EQUAL(proxy.Execute(programText), IEngineFlat::EStatus::Complete);
     }
-
+ 
     { // range end < range begin
         auto programText = R"___((
             (let $4 (Uint32 '"346"))
@@ -515,7 +515,7 @@ Y_UNIT_TEST(SelectRangeWithNotFullKey) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -533,7 +533,7 @@ Y_UNIT_TEST(SelectRangeWithNotFullKey) {
         UNIT_ASSERT_EQUAL(TString(row1["value"]), "Tables");
         UNIT_ASSERT_EQUAL(TString(row2["value"]), "Paulson");
     }
-
+ 
     {
         auto programText = R"___((
             (let r1 '('key1 (Uint32 '345) (Uint32 '347)))
@@ -546,7 +546,7 @@ Y_UNIT_TEST(SelectRangeWithNotFullKey) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -564,7 +564,7 @@ Y_UNIT_TEST(SelectRangeWithNotFullKey) {
         UNIT_ASSERT_EQUAL(TString(row1["value"]), "Tables");
         UNIT_ASSERT_EQUAL(TString(row2["value"]), "Paulson");
     }
-
+ 
     {
         auto programText = R"___((
             (let r1 '('key1 (Uint32 '345) (Uint32 '347)))
@@ -577,7 +577,7 @@ Y_UNIT_TEST(SelectRangeWithNotFullKey) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -595,7 +595,7 @@ Y_UNIT_TEST(SelectRangeWithNotFullKey) {
         UNIT_ASSERT_EQUAL(TString(row1["value"]), "Tables");
         UNIT_ASSERT_EQUAL(TString(row2["value"]), "Paulson");
     }
-
+ 
     {
         auto programText = R"___((
             (let r1 '('key1 (Uint32 '345) (Uint32 '347)))
@@ -608,7 +608,7 @@ Y_UNIT_TEST(SelectRangeWithNotFullKey) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -656,15 +656,15 @@ Y_UNIT_TEST(SelectRangeWithNotFullKey) {
         UNIT_ASSERT_EQUAL(TString(row2["key2"]), "idXYZ");
         UNIT_ASSERT_EQUAL(TString(row1["value"]), "Tables");
         UNIT_ASSERT_EQUAL(TString(row2["value"]), "Paulson");
-    }
+    } 
 }
-
+ 
 //
-
+ 
 Y_UNIT_TEST(WriteAndReadMultipleShards) {
     TTester t(TTester::ESchema_MultiShardKV);
     TFakeMiniKQLProxy proxy(t);
-
+ 
     {
         auto programText = R"___((
             (let row1 '('('key (Uint32 '100))))
@@ -683,10 +683,10 @@ Y_UNIT_TEST(WriteAndReadMultipleShards) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         UNIT_ASSERT_EQUAL(proxy.Execute(programText), IEngineFlat::EStatus::Complete);
     }
-
+ 
     {
         auto programText = R"___((
             (let row1 '('('key (Uint32 '100))))
@@ -702,7 +702,7 @@ Y_UNIT_TEST(WriteAndReadMultipleShards) {
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -714,11 +714,11 @@ Y_UNIT_TEST(WriteAndReadMultipleShards) {
         UNIT_ASSERT_EQUAL(TString(row1["value"]), "ImInShard1");
         UNIT_ASSERT_EQUAL(TString(row2["value"]), "ImInShard2");
         UNIT_ASSERT_EQUAL(TString(row3["value"]), "ImInShard3");
-    }
+    } 
 }
-
+ 
 //
-
+ 
 void GetTableStats(TTestActorRuntime &runtime, ui64 tabletId, ui64 tableId, NKikimrTableStats::TTableStats& stats) {
     TAutoPtr<TEvDataShard::TEvGetTableStats> ev(new TEvDataShard::TEvGetTableStats(tableId));
 
@@ -849,7 +849,7 @@ Y_UNIT_TEST(TableStatsHistograms) {
 }
 
 //
-
+ 
 void InitCrossShard(TFakeMiniKQLProxy& proxy) {
     auto programText = R"___((
         (let row1 '('('key (Uint32 '100))))
@@ -875,11 +875,11 @@ void InitCrossShard(TFakeMiniKQLProxy& proxy) {
 void CrossShard_1_Cycle_Impl(const TString& dispatchName, std::function<void (TTestActorRuntime&)> setup, bool& activeZone) {
     TTester t(TTester::ESchema_MultiShardKV, dispatchName, setup, activeZone);
     TFakeMiniKQLProxy proxy(t);
-
+ 
     InitCrossShard(proxy);
 
     {
-        TTester::TActiveZone az(t);
+        TTester::TActiveZone az(t); 
         auto programText = R"___((
             (let row1 '('('key (Uint32 '100))))
             (let row2 '('('key (Uint32 '1100))))
@@ -898,10 +898,10 @@ void CrossShard_1_Cycle_Impl(const TString& dispatchName, std::function<void (TT
             ))
             (return pgmReturn)
         ))___";
-
+ 
         proxy.Execute(programText, false);
     }
-
+ 
     {
         auto programText = R"___((
             (let row1 '('('key (Uint32 '100))))
@@ -917,7 +917,7 @@ void CrossShard_1_Cycle_Impl(const TString& dispatchName, std::function<void (TT
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -929,9 +929,9 @@ void CrossShard_1_Cycle_Impl(const TString& dispatchName, std::function<void (TT
         UNIT_ASSERT_EQUAL(TString(row1["value"]), "ImInShard3");
         UNIT_ASSERT_EQUAL(TString(row2["value"]), "ImInShard1");
         UNIT_ASSERT_EQUAL(TString(row3["value"]), "ImInShard2");
-    }
+    } 
 }
-
+ 
 Y_UNIT_TEST(CrossShard_1_Cycle) {
     TVector<ui64> tabletIds;
     tabletIds.push_back((ui64)TTestTxConfig::TxTablet0);
@@ -942,17 +942,17 @@ Y_UNIT_TEST(CrossShard_1_Cycle) {
         return initialEventsFilter.Prepare();
     }, &CrossShard_1_Cycle_Impl);
 }
-
+ 
 //
-
+ 
 void CrossShard_2_SwapAndCopy_Impl(const TString& dispatchName, std::function<void (TTestActorRuntime&)> setup, bool& activeZone) {
     TTester t(TTester::ESchema_MultiShardKV, dispatchName, setup, activeZone);
     TFakeMiniKQLProxy proxy(t);
-
+ 
     InitCrossShard(proxy);
-
+ 
     {
-        TTester::TActiveZone az(t);
+        TTester::TActiveZone az(t); 
         auto programText = R"___((
             (let row1 '('('key (Uint32 '100))))
             (let row2 '('('key (Uint32 '1100))))
@@ -972,10 +972,10 @@ void CrossShard_2_SwapAndCopy_Impl(const TString& dispatchName, std::function<vo
             ))
             (return pgmReturn)
         ))___";
-
+ 
         proxy.Execute(programText, false);
     }
-
+ 
     {
         auto programText = R"___((
             (let row1 '('('key (Uint32 '100))))
@@ -993,7 +993,7 @@ void CrossShard_2_SwapAndCopy_Impl(const TString& dispatchName, std::function<vo
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
         TValue value = TValue::Create(res.GetValue(), res.GetType());
@@ -1006,9 +1006,9 @@ void CrossShard_2_SwapAndCopy_Impl(const TString& dispatchName, std::function<vo
         UNIT_ASSERT_EQUAL(TString(row2["value"]), "ImInShard1");
         UNIT_ASSERT_EQUAL(TString(row3["value"]), "ImInShard3");
         UNIT_ASSERT_EQUAL(TString(row3new["value"]), "ImInShard3");
-    }
+    } 
 }
-
+ 
 Y_UNIT_TEST(CrossShard_2_SwapAndCopy) {
     TVector<ui64> tabletIds;
     tabletIds.push_back((ui64)TTestTxConfig::TxTablet0);
@@ -1019,17 +1019,17 @@ Y_UNIT_TEST(CrossShard_2_SwapAndCopy) {
         return initialEventsFilter.Prepare();
     }, &CrossShard_2_SwapAndCopy_Impl);
 }
-
+ 
 //
-
+ 
 void CrossShard_3_AllToOne_Impl(const TString& dispatchName, std::function<void (TTestActorRuntime&)> setup, bool& activeZone) {
     TTester t(TTester::ESchema_MultiShardKV, dispatchName, setup, activeZone);
     TFakeMiniKQLProxy proxy(t);
-
+ 
     InitCrossShard(proxy);
-
+ 
     {
-        TTester::TActiveZone az(t);
+        TTester::TActiveZone az(t); 
         auto programText = R"___((
             (let row1 '('('key (Uint32 '100))))
             (let row2 '('('key (Uint32 '1100))))
@@ -1051,10 +1051,10 @@ void CrossShard_3_AllToOne_Impl(const TString& dispatchName, std::function<void
             ))
             (return pgmReturn)
         ))___";
-
+ 
         proxy.Execute(programText, false);
     }
-
+ 
     {
         auto programText = R"___((
             (let row1 '('('key (Uint32 '100))))
@@ -1072,7 +1072,7 @@ void CrossShard_3_AllToOne_Impl(const TString& dispatchName, std::function<void
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -1084,9 +1084,9 @@ void CrossShard_3_AllToOne_Impl(const TString& dispatchName, std::function<void
         UNIT_ASSERT_EQUAL(TString(row31["value"]), "ImInShard1");
         UNIT_ASSERT_EQUAL(TString(row32["value"]), "ImInShard2");
         UNIT_ASSERT_EQUAL(TString(row33["value"]), "ImInShard3");
-    }
+    } 
 }
-
+ 
 Y_UNIT_TEST(CrossShard_3_AllToOne) {
     TVector<ui64> tabletIds;
     tabletIds.push_back((ui64)TTestTxConfig::TxTablet0);
@@ -1097,17 +1097,17 @@ Y_UNIT_TEST(CrossShard_3_AllToOne) {
         return initialEventsFilter.Prepare();
     }, &CrossShard_3_AllToOne_Impl);
 }
-
+ 
 //
-
+ 
 void CrossShard_4_OneToAll_Impl(const TString& dispatchName, std::function<void (TTestActorRuntime&)> setup, bool& activeZone) {
     TTester t(TTester::ESchema_MultiShardKV, dispatchName, setup, activeZone);
     TFakeMiniKQLProxy proxy(t);
-
+ 
     InitCrossShard(proxy);
 
     {
-        TTester::TActiveZone az(t);
+        TTester::TActiveZone az(t); 
         auto programText = R"___((
             (let row1 '('('key (Uint32 '100))))
             (let row2 '('('key (Uint32 '1100))))
@@ -1129,10 +1129,10 @@ void CrossShard_4_OneToAll_Impl(const TString& dispatchName, std::function<void
             ))
             (return pgmReturn)
         ))___";
-
+ 
         proxy.Execute(programText, false);
     }
-
+ 
     {
         auto programText = R"___((
             (let row13 '('('key (Uint32 '203))))
@@ -1148,7 +1148,7 @@ void CrossShard_4_OneToAll_Impl(const TString& dispatchName, std::function<void
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -1160,9 +1160,9 @@ void CrossShard_4_OneToAll_Impl(const TString& dispatchName, std::function<void
         UNIT_ASSERT_EQUAL(TString(row13["value"]), "ImInShard3");
         UNIT_ASSERT_EQUAL(TString(row23["value"]), "ImInShard3");
         UNIT_ASSERT_EQUAL(TString(row33["value"]), "ImInShard3");
-    }
+    } 
 }
-
+ 
 Y_UNIT_TEST(CrossShard_4_OneToAll) {
     TVector<ui64> tabletIds;
     tabletIds.push_back((ui64)TTestTxConfig::TxTablet0);
@@ -1173,17 +1173,17 @@ Y_UNIT_TEST(CrossShard_4_OneToAll) {
         return initialEventsFilter.Prepare();
     }, &CrossShard_4_OneToAll_Impl);
 }
-
+ 
 //
-
+ 
 void CrossShard_5_AllToAll_Impl(const TString& dispatchName, std::function<void (TTestActorRuntime&)> setup, bool& activeZone) {
     TTester t(TTester::ESchema_MultiShardKV, dispatchName, setup, activeZone);
     TFakeMiniKQLProxy proxy(t);
-
+ 
     InitCrossShard(proxy);
-
+ 
     {
-        TTester::TActiveZone az(t);
+        TTester::TActiveZone az(t); 
         auto programText = R"___((
             (let row1 '('('key (Uint32 '100))))
             (let row2 '('('key (Uint32 '1100))))
@@ -1217,10 +1217,10 @@ void CrossShard_5_AllToAll_Impl(const TString& dispatchName, std::function<void
             ))
             (return pgmReturn)
         ))___";
-
+ 
         proxy.Execute(programText, false);
     }
-
+ 
     {
         auto programText = R"___((
             (let row11 '('('key (Uint32 '201))))
@@ -1248,7 +1248,7 @@ void CrossShard_5_AllToAll_Impl(const TString& dispatchName, std::function<void
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -1272,9 +1272,9 @@ void CrossShard_5_AllToAll_Impl(const TString& dispatchName, std::function<void
         UNIT_ASSERT_EQUAL(TString(row31["value"]), "ImInShard1");
         UNIT_ASSERT_EQUAL(TString(row32["value"]), "ImInShard2");
         UNIT_ASSERT_EQUAL(TString(row33["value"]), "ImInShard3");
-    }
+    } 
 }
-
+ 
 Y_UNIT_TEST(CrossShard_5_AllToAll) {
     TVector<ui64> tabletIds;
     tabletIds.push_back((ui64)TTestTxConfig::TxTablet0);
@@ -1285,17 +1285,17 @@ Y_UNIT_TEST(CrossShard_5_AllToAll) {
         return initialEventsFilter.Prepare();
     }, &CrossShard_5_AllToAll_Impl);
 }
-
+ 
 //
-
+ 
 void CrossShard_6_Local_Impl(const TString& dispatchName, std::function<void (TTestActorRuntime&)> setup, bool& activeZone) {
     TTester t(TTester::ESchema_MultiShardKV, dispatchName, setup, activeZone);
     TFakeMiniKQLProxy proxy(t);
-
+ 
     InitCrossShard(proxy);
-
+ 
     {
-        TTester::TActiveZone az(t);
+        TTester::TActiveZone az(t); 
         auto programText = R"___((
             (let row1 '('('key (Uint32 '100))))
             (let row2 '('('key (Uint32 '1100))))
@@ -1317,10 +1317,10 @@ void CrossShard_6_Local_Impl(const TString& dispatchName, std::function<void (TT
             ))
             (return pgmReturn)
         ))___";
-
+ 
         proxy.Execute(programText, false);
     }
-
+ 
     {
         auto programText = R"___((
             (let row11 '('('key (Uint32 '201))))
@@ -1336,7 +1336,7 @@ void CrossShard_6_Local_Impl(const TString& dispatchName, std::function<void (TT
             ))
             (return pgmReturn)
         ))___";
-
+ 
         NKikimrMiniKQL::TResult res;
         UNIT_ASSERT_EQUAL(proxy.Execute(programText, res), IEngineFlat::EStatus::Complete);
 
@@ -1348,9 +1348,9 @@ void CrossShard_6_Local_Impl(const TString& dispatchName, std::function<void (TT
         UNIT_ASSERT_EQUAL(TString(row11["value"]), "ImInShard1");
         UNIT_ASSERT_EQUAL(TString(row22["value"]), "ImInShard2");
         UNIT_ASSERT_EQUAL(TString(row33["value"]), "ImInShard3");
-    }
+    } 
 }
-
+ 
 Y_UNIT_TEST(CrossShard_6_Local) {
     TVector<ui64> tabletIds;
     tabletIds.push_back((ui64)TTestTxConfig::TxTablet0);
@@ -1361,7 +1361,7 @@ Y_UNIT_TEST(CrossShard_6_Local) {
         return initialEventsFilter.Prepare();
     }, &CrossShard_6_Local_Impl);
 }
-
+ 
 Y_UNIT_TEST(WriteAndReadMany) {
     TTester t(TTester::ESchema_DoubleKV);
     TFakeMiniKQLProxy proxy(t);
@@ -1710,5 +1710,5 @@ Y_UNIT_TEST(MemoryUsageMultiShard) {
 }
 
 } // Y_UNIT_TEST_SUITE(TTxDataShardMiniKQL)
-
-} // namespace NKikimr
+ 
+} // namespace NKikimr 
diff --git a/ydb/core/tx/schemeshard/schemeshard__serverless_storage_billing.cpp b/ydb/core/tx/schemeshard/schemeshard__serverless_storage_billing.cpp
index fdb4593a73..39d84e883f 100644
--- a/ydb/core/tx/schemeshard/schemeshard__serverless_storage_billing.cpp
+++ b/ydb/core/tx/schemeshard/schemeshard__serverless_storage_billing.cpp
@@ -98,7 +98,7 @@ struct TSchemeShard::TTxServerlessStorageBilling : public TTransactionBase<TSche
         auto last = Self->ServerlessStorageLastBillTime;
 
         if (now < last) {
-            LOG_DEBUG_S(ctx, NKikimrServices::FLAT_TX_SCHEMESHARD, "TTxServerlessStorageBilling: unable do anything from the past"
+            LOG_DEBUG_S(ctx, NKikimrServices::FLAT_TX_SCHEMESHARD, "TTxServerlessStorageBilling: unable do anything from the past" 
                         << ", schemeshardId: " << Self->SelfTabletId()
                         << ", domainId: " << Self->ParentDomainId
                         << ", now: " << now
diff --git a/ydb/core/tx/schemeshard/schemeshard_impl.cpp b/ydb/core/tx/schemeshard/schemeshard_impl.cpp
index 0715543a22..15e08a9628 100644
--- a/ydb/core/tx/schemeshard/schemeshard_impl.cpp
+++ b/ydb/core/tx/schemeshard/schemeshard_impl.cpp
@@ -3644,13 +3644,13 @@ TSchemeShard::TSchemeShard(const TActorId &tablet, TTabletStorageInfo *info)
     , EnableAsyncIndexes(0, 0, 1)
     , EnableSchemeTransactionsAtSchemeShard(0, 0, 1)
 {
-    TabletCountersPtr.Reset(new TProtobufTabletCounters<
+    TabletCountersPtr.Reset(new TProtobufTabletCounters< 
                             ESimpleCounters_descriptor,
                             ECumulativeCounters_descriptor,
                             EPercentileCounters_descriptor,
                             ETxTypes_descriptor
                             >());
-    TabletCounters = TabletCountersPtr.Get();
+    TabletCounters = TabletCountersPtr.Get(); 
 
     SelfPinger = new TSelfPinger(SelfTabletId(), TabletCounters);
 }
@@ -3777,7 +3777,7 @@ void TSchemeShard::OnActivateExecutor(const TActorContext &ctx) {
 
     SplitSettings.Register(appData->Icb);
 
-    Executor()->RegisterExternalTabletCounters(TabletCountersPtr);
+    Executor()->RegisterExternalTabletCounters(TabletCountersPtr); 
     Execute(CreateTxInitSchema(), ctx);
 
     SubscribeConsoleConfigs(ctx);
diff --git a/ydb/core/tx/schemeshard/schemeshard_impl.h b/ydb/core/tx/schemeshard/schemeshard_impl.h
index e1a1d08b9a..a291b43230 100644
--- a/ydb/core/tx/schemeshard/schemeshard_impl.h
+++ b/ydb/core/tx/schemeshard/schemeshard_impl.h
@@ -203,9 +203,9 @@ public:
 
     TShardDeleter ShardDeleter;
 
-    // Counter-strike stuff
+    // Counter-strike stuff 
     TTabletCountersBase* TabletCounters = nullptr;
-    TAutoPtr<TTabletCountersBase> TabletCountersPtr;
+    TAutoPtr<TTabletCountersBase> TabletCountersPtr; 
 
     TAutoPtr<TSelfPinger> SelfPinger;
 
diff --git a/ydb/core/tx/tx_processing.h b/ydb/core/tx/tx_processing.h
index 72276c1af3..879f1a7ab0 100644
--- a/ydb/core/tx/tx_processing.h
+++ b/ydb/core/tx/tx_processing.h
@@ -117,7 +117,7 @@ struct TEvTxProcessing {
             Record.SetTabletDest(tabletDest);
             Record.SetTabletProducer(tabletProducer);
             Record.SetReadSet(readSet);
-            Record.SetSeqno(seqno);
+            Record.SetSeqno(seqno); 
         }
 
         TString ToString() const {
@@ -128,18 +128,18 @@ struct TEvTxProcessing {
             str << " TabletDest# " << Record.GetTabletDest();
             str << " SetTabletProducer# " << Record.GetTabletProducer();
             str << " ReadSet.Size()# " << Record.GetReadSet().size();
-            str << " Seqno# " << Record.GetSeqno();
+            str << " Seqno# " << Record.GetSeqno(); 
             // BalanceTrackList
             str << "}";
             return str.Str();
         }
     };
 
-    struct TEvReadSetAck : public TThrRefBase, public TEventPB<TEvReadSetAck, NKikimrTx::TEvReadSetAck, EvReadSetAck> {
+    struct TEvReadSetAck : public TThrRefBase, public TEventPB<TEvReadSetAck, NKikimrTx::TEvReadSetAck, EvReadSetAck> { 
         TEvReadSetAck()
         {}
 
-        TEvReadSetAck(ui64 step, ui64 orderId, ui64 tabletSource, ui64 tabletDest, ui64 tabletConsumer, ui32 flags, ui64 seqno = 0)
+        TEvReadSetAck(ui64 step, ui64 orderId, ui64 tabletSource, ui64 tabletDest, ui64 tabletConsumer, ui32 flags, ui64 seqno = 0) 
         {
             Record.SetStep(step);
             Record.SetTxId(orderId);
@@ -147,7 +147,7 @@ struct TEvTxProcessing {
             Record.SetTabletDest(tabletDest);
             Record.SetTabletConsumer(tabletConsumer);
             Record.SetFlags(flags);
-            Record.SetSeqno(seqno);
+            Record.SetSeqno(seqno); 
         }
 
         TEvReadSetAck(const TEvReadSet& evReadSet, ui64 tabletConsumer)
@@ -169,7 +169,7 @@ struct TEvTxProcessing {
             str << " TabletDest# " << Record.GetTabletDest();
             str << " SetTabletConsumer# " << Record.GetTabletConsumer();
             str << " Flags# " << Record.GetFlags();
-            str << " Seqno# " << Record.GetSeqno();
+            str << " Seqno# " << Record.GetSeqno(); 
             str << "}";
             return str.Str();
         }
diff --git a/ydb/core/tx/tx_proxy/proxy_impl.cpp b/ydb/core/tx/tx_proxy/proxy_impl.cpp
index 20dc8cce17..df82100d70 100644
--- a/ydb/core/tx/tx_proxy/proxy_impl.cpp
+++ b/ydb/core/tx/tx_proxy/proxy_impl.cpp
@@ -45,7 +45,7 @@ struct TDelayedQueue {
 
 class TTxProxy : public TActorBootstrapped<TTxProxy> {
     TTxProxyServices Services;
-
+ 
     THolder<NTabletPipe::IClientCache> PipeClientCache;
     TTxAllocatorClient TxAllocatorClient;
 
diff --git a/ydb/core/util/failure_injection.cpp b/ydb/core/util/failure_injection.cpp
index 9eeaaa968b..00c4dd6fa1 100644
--- a/ydb/core/util/failure_injection.cpp
+++ b/ydb/core/util/failure_injection.cpp
@@ -54,34 +54,34 @@ namespace NKikimr {
             }
 
             void DumpQueue(IOutputStream& str) {
-                HTML(str) {
-                    TABLE() {
-                        TABLEHEAD() {
-                            TABLER() {
-                                TABLEH() {
+                HTML(str) { 
+                    TABLE() { 
+                        TABLEHEAD() { 
+                            TABLER() { 
+                                TABLEH() { 
                                     str << "Probe name";
-                                }
-                                TABLEH() {
+                                } 
+                                TABLEH() { 
                                     str << "Remaining hit count";
-                                }
-                            }
-                        }
-                        TABLEBODY() {
+                                } 
+                            } 
+                        } 
+                        TABLEBODY() { 
                             with_lock (Mutex) {
                                 for (const TFailureQueueItem& item : FailureQ) {
-                                    TABLER() {
-                                        TABLED() {
+                                    TABLER() { 
+                                        TABLED() { 
                                             str << item.Name;
-                                        }
-                                        TABLED() {
+                                        } 
+                                        TABLED() { 
                                             str << item.HitCount;
-                                        }
-                                    }
+                                        } 
+                                    } 
                                 }
                             }
-                        }
-                    }
-                }
+                        } 
+                    } 
+                } 
             }
 
         private:
@@ -106,14 +106,14 @@ namespace NKikimr {
             {}
 
         private:
-            bool DoExecute(TOrbit&, const TParams& params) override {
+            bool DoExecute(TOrbit&, const TParams& params) override { 
                 Manager->Inject(Name, params);
                 return true;
             }
         };
 
         class TFailureInjectionActor : public TActorBootstrapped<TFailureInjectionActor> {
-            TManager TraceManager;
+            TManager TraceManager; 
             TVector<TString> Probes;
             TFailureInjectionManager Manager;
             bool Enabled = false;
@@ -162,7 +162,7 @@ namespace NKikimr {
                         auto& custom = *action.MutableCustomAction();
                         custom.SetName(actionName);
 
-                        auto factory = [=](TProbe *probe, const TCustomAction& /*action*/, TSession* /*trace*/) {
+                        auto factory = [=](TProbe *probe, const TCustomAction& /*action*/, TSession* /*trace*/) { 
                             return new TTraceActionExecutor(probe, &Manager, name);
                         };
                         TraceManager.RegisterCustomAction(actionName, factory);
@@ -197,11 +197,11 @@ namespace NKikimr {
                             ui32 hitCount = hc ? FromString<ui32>(hc) : 1;
                             Manager.EnqueueFailureItem(probe, {}, hitCount);
                         } catch (const yexception& ex) {
-                            HTML(str) {
-                                DIV() {
+                            HTML(str) { 
+                                DIV() { 
                                     str << "<h1><font color=red>" << ex.what() << "</font></h1>";
-                                }
-                            }
+                                } 
+                            } 
                         }
                     }
                 }
@@ -209,52 +209,52 @@ namespace NKikimr {
                     Enable();
                 }
 
-                HTML(str) {
-                    DIV() {
+                HTML(str) { 
+                    DIV() { 
                         Manager.DumpQueue(str);
-                    }
+                    } 
 
-                    FORM_CLASS("form-horizontal") {
-                        DIV_CLASS("control-group") {
-                            LABEL_CLASS_FOR("control-label", "probe") {
+                    FORM_CLASS("form-horizontal") { 
+                        DIV_CLASS("control-group") { 
+                            LABEL_CLASS_FOR("control-label", "probe") { 
                                 str << "Probe";
-                            }
-                            DIV_CLASS("controls") {
+                            } 
+                            DIV_CLASS("controls") { 
                                 str << "<select id=\"probe\" name=\"probe\">";
                                 for (const TString& probe : Probes) {
                                     str << "<option value=\"" << probe << "\">" << probe << "</option>";
                                 }
                                 str << "</select>";
-                            }
+                            } 
 
-                            LABEL_CLASS_FOR("control-label", "hitcount") {
+                            LABEL_CLASS_FOR("control-label", "hitcount") { 
                                 str << "Hit count";
-                            }
-                            DIV_CLASS("controls") {
+                            } 
+                            DIV_CLASS("controls") { 
                                 str << "<input type=\"number\" id=\"hitcount\" name=\"hitcount\">";
-                            }
+                            } 
 
-                            LABEL_CLASS_FOR("control-label", "queue") {
+                            LABEL_CLASS_FOR("control-label", "queue") { 
                                 str << "Queue definition string";
-                            }
-                            DIV_CLASS("controls") {
+                            } 
+                            DIV_CLASS("controls") { 
                                 str << "<input id=\"queue\" name=\"queue\">";
-                            }
-                        }
-                        DIV_CLASS("control-group") {
-                            DIV_CLASS("controls") {
+                            } 
+                        } 
+                        DIV_CLASS("control-group") { 
+                            DIV_CLASS("controls") { 
                                 str << "<button type=\"submit\" name=\"submit\" class=\"btn btn-default\">Add to queue</button>";
-                            }
-                        }
-                    }
-                }
+                            } 
+                        } 
+                    } 
+                } 
                 ctx.Send(ev->Sender, new NMon::TEvHttpInfoRes(str.Str(), ev->Get()->SubRequestId));
             }
 
             void ProcessQueue(IOutputStream& str, const TString& queue) {
                 TVector<std::tuple<TString, TMaybe<TParams>, ui32>> items;
 
-                HTML(str) {
+                HTML(str) { 
                     size_t pos = 0;
                     for (;;) {
                         TString probe;
@@ -262,9 +262,9 @@ namespace NKikimr {
                             probe.append(queue[pos]);
                         }
                         if (std::find(Probes.begin(), Probes.end(), probe) == Probes.end()) {
-                            DIV() {
+                            DIV() { 
                                 str << "<h1><font color=red>Probe " << probe << " does not exist</font></h1>";
-                            }
+                            } 
                             return;
                         }
                         ui32 hitCount = 1;
@@ -274,9 +274,9 @@ namespace NKikimr {
                             }
                         }
                         if (pos < queue.size() && queue[pos] != ';') {
-                            DIV() {
+                            DIV() { 
                                 str << "<h1><font color=red>Missing semicolon</font></h1>";
-                            }
+                            } 
                             return;
                         }
                         items.emplace_back(std::move(probe), Nothing(), hitCount);
@@ -286,7 +286,7 @@ namespace NKikimr {
                             break;
                         }
                     }
-                }
+                } 
 
                 for (const auto& item : items) {
                     Manager.EnqueueFailureItem(std::get<0>(item), std::get<1>(item), std::get<2>(item));
diff --git a/ydb/core/util/fragmented_buffer.cpp b/ydb/core/util/fragmented_buffer.cpp
index 6da04399b6..6a4525bca1 100644
--- a/ydb/core/util/fragmented_buffer.cpp
+++ b/ydb/core/util/fragmented_buffer.cpp
@@ -7,7 +7,7 @@ namespace NKikimr {
 TFragmentedBuffer::TFragmentedBuffer() {
 }
 
-void TFragmentedBuffer::Insert(i32 begin, const char* source, i32 bytesToCopy) {
+void TFragmentedBuffer::Insert(i32 begin, const char* source, i32 bytesToCopy) { 
     Y_VERIFY(bytesToCopy);
     BufferForOffset[begin].AssignNoAlias(source, bytesToCopy);
 }
@@ -28,7 +28,7 @@ void TFragmentedBuffer::SetMonolith(TString &data) {
     BufferForOffset.emplace(0, data);
 }
 
-void TFragmentedBuffer::Write(i32 begin, const char* buffer, i32 size) {
+void TFragmentedBuffer::Write(i32 begin, const char* buffer, i32 size) { 
     Y_VERIFY(size);
     if (BufferForOffset.empty()) {
         Insert(begin, buffer, size);
@@ -38,7 +38,7 @@ void TFragmentedBuffer::Write(i32 begin, const char* buffer, i32 size) {
     if (it != BufferForOffset.begin()) {
         it--;
     }
-    if (it != BufferForOffset.end() && it->first < begin && it->first + i32(it->second.size()) <= begin) {
+    if (it != BufferForOffset.end() && it->first < begin && it->first + i32(it->second.size()) <= begin) { 
         // b....e
         //         X....Y
         // skip
@@ -46,24 +46,24 @@ void TFragmentedBuffer::Write(i32 begin, const char* buffer, i32 size) {
     }
 
     const char* source = buffer;
-    i32 bytesToCopy = size;
-    i32 offset = begin;
+    i32 bytesToCopy = size; 
+    i32 offset = begin; 
     while (bytesToCopy) {
         if (it == BufferForOffset.end()) {
             Insert(offset, source, bytesToCopy);
             break;
         } else if (it->first > offset) {
-            i32 bytesToNext = it->first - offset;
-            i32 bytesToInsert = Min(bytesToCopy, bytesToNext);
+            i32 bytesToNext = it->first - offset; 
+            i32 bytesToInsert = Min(bytesToCopy, bytesToNext); 
             Insert(offset, source, bytesToInsert);
             source += bytesToInsert;
             offset += bytesToInsert;
             bytesToCopy -= bytesToInsert;
         } else if (it->first <= offset) {
             Y_VERIFY(it->second.size());
-            Y_VERIFY(it->first + i32(it->second.size()) > offset);
-            i32 bytesToNext = it->first + it->second.size() - offset;
-            i32 bytesToInsert = Min(bytesToCopy, bytesToNext);
+            Y_VERIFY(it->first + i32(it->second.size()) > offset); 
+            i32 bytesToNext = it->first + it->second.size() - offset; 
+            i32 bytesToInsert = Min(bytesToCopy, bytesToNext); 
             char *destination = const_cast<char*>(it->second.data()) + offset - it->first;
             memcpy(destination, source, bytesToInsert);
             source += bytesToInsert;
@@ -75,28 +75,28 @@ void TFragmentedBuffer::Write(i32 begin, const char* buffer, i32 size) {
 
 }
 
-void TFragmentedBuffer::Read(i32 begin, char* buffer, i32 size) const {
+void TFragmentedBuffer::Read(i32 begin, char* buffer, i32 size) const { 
     Y_VERIFY(size);
     Y_VERIFY(!BufferForOffset.empty());
     auto it = BufferForOffset.upper_bound(begin);
     if (it != BufferForOffset.begin()) {
         it--;
     }
-    if (it != BufferForOffset.end() && it->first < begin && it->first + i32(it->second.size()) <= begin) {
+    if (it != BufferForOffset.end() && it->first < begin && it->first + i32(it->second.size()) <= begin) { 
         Y_VERIFY(false);
         // b....e
         //         X....Y
     }
 
     char* destination = buffer;
-    i32 bytesToCopy = size;
-    i32 offset = begin;
+    i32 bytesToCopy = size; 
+    i32 offset = begin; 
     while (bytesToCopy) {
-        Y_VERIFY(it != BufferForOffset.end(), "offset# %" PRIi32 " Print# %s", (i32)offset, Print().c_str());
-        Y_VERIFY(it->first <= offset, "offset# %" PRIi32 " Print# %s", (i32)offset, Print().c_str());
-        Y_VERIFY(it->first + i32(it->second.size()) > offset);
-        i32 bytesToNext = it->first + it->second.size() - offset;
-        i32 bytesToInsert = Min(bytesToCopy, bytesToNext);
+        Y_VERIFY(it != BufferForOffset.end(), "offset# %" PRIi32 " Print# %s", (i32)offset, Print().c_str()); 
+        Y_VERIFY(it->first <= offset, "offset# %" PRIi32 " Print# %s", (i32)offset, Print().c_str()); 
+        Y_VERIFY(it->first + i32(it->second.size()) > offset); 
+        i32 bytesToNext = it->first + it->second.size() - offset; 
+        i32 bytesToInsert = Min(bytesToCopy, bytesToNext); 
         const char *source = it->second.data() + offset - it->first;
         memcpy(destination, source, bytesToInsert);
         destination += bytesToInsert;
@@ -119,23 +119,23 @@ TString TFragmentedBuffer::Print() const {
     return str.Str();
 }
 
-std::pair<const char*, i32> TFragmentedBuffer::Get(i32 begin) const {
+std::pair<const char*, i32> TFragmentedBuffer::Get(i32 begin) const { 
     auto it = BufferForOffset.upper_bound(begin);
     Y_VERIFY(it != BufferForOffset.begin());
     --it;
-    const i32 offset = begin - it->first;
+    const i32 offset = begin - it->first; 
     Y_VERIFY(offset >= 0 && (size_t)offset < it->second.size());
     return std::make_pair(it->second.data() + offset, it->second.size() - offset);
 }
 
-void TFragmentedBuffer::CopyFrom(const TFragmentedBuffer& from, const TIntervalSet<i32>& range) {
+void TFragmentedBuffer::CopyFrom(const TFragmentedBuffer& from, const TIntervalSet<i32>& range) { 
     Y_VERIFY(range);
-    for (auto it = range.begin(); it != range.end(); ++it) {
-        auto [begin, end] = *it;
-        i32 offset = begin;
+    for (auto it = range.begin(); it != range.end(); ++it) { 
+        auto [begin, end] = *it; 
+        i32 offset = begin; 
         while (offset < end) {
             const auto& [data, maxLen] = from.Get(offset);
-            i32 len = Min(maxLen, end - offset);
+            i32 len = Min(maxLen, end - offset); 
             Write(offset, data, len);
             offset += len;
         }
diff --git a/ydb/core/util/fragmented_buffer.h b/ydb/core/util/fragmented_buffer.h
index 0e7ce9f842..94dea29185 100644
--- a/ydb/core/util/fragmented_buffer.h
+++ b/ydb/core/util/fragmented_buffer.h
@@ -7,8 +7,8 @@
 namespace NKikimr {
 
 class TFragmentedBuffer {
-    TMap<i32, TString> BufferForOffset;
-    void Insert(i32 begin, const char* source, i32 bytesToCopy);
+    TMap<i32, TString> BufferForOffset; 
+    void Insert(i32 begin, const char* source, i32 bytesToCopy); 
 
 public:
     TFragmentedBuffer();
@@ -17,12 +17,12 @@ public:
     TString GetMonolith();
     void SetMonolith(TString &data);
 
-    void Write(i32 begin, const char* buffer, i32 size);
-    void Read(i32 begin, char* buffer, i32 size) const;
+    void Write(i32 begin, const char* buffer, i32 size); 
+    void Read(i32 begin, char* buffer, i32 size) const; 
     TString Print() const;
 
-    std::pair<const char*, i32> Get(i32 begin) const;
-    void CopyFrom(const TFragmentedBuffer& from, const TIntervalSet<i32>& range);
+    std::pair<const char*, i32> Get(i32 begin) const; 
+    void CopyFrom(const TFragmentedBuffer& from, const TIntervalSet<i32>& range); 
 
     explicit operator bool() const {
         return !BufferForOffset.empty();
diff --git a/ydb/core/util/interval_set.h b/ydb/core/util/interval_set.h
index 68f6ea6658..6243a59a83 100644
--- a/ydb/core/util/interval_set.h
+++ b/ydb/core/util/interval_set.h
@@ -1,970 +1,970 @@
 #pragma once
 #include "defs.h"
 
-#include <variant>
-#include <utility>
+#include <variant> 
+#include <utility> 
 #include <util/generic/map.h>
-#include <util/stream/str.h>
-#include <util/system/yassert.h>
+#include <util/stream/str.h> 
+#include <util/system/yassert.h> 
 #include <ydb/core/util/yverify_stream.h>
-#include <library/cpp/containers/stack_vector/stack_vec.h>
+#include <library/cpp/containers/stack_vector/stack_vec.h> 
 
 namespace NKikimr {
 
 //
 // A set of non-intersecting non-adjoint non-empty intervals in form [begin, end) (end > begin)
 //
-template <class T> struct TIntervalMap; // implemented as TMap
-template <class T> struct TIntervalVec; // implemented as sorted TStackVec
-template <class T, size_t ThresholdSize = 8> struct TIntervalSet; // implement as either of the above
-
-template <class T>
-struct TIntervalMap {
-    TMap<T, T> EndForBegin;
-
-    using iterator = typename decltype(EndForBegin)::iterator;
-    using const_iterator = typename decltype(EndForBegin)::const_iterator;
-
-    TIntervalMap() = default;
-    TIntervalMap(const TIntervalMap<T>&) = default;
-    TIntervalMap(TIntervalMap<T>&&) = default;
-
-    TIntervalMap(T begin, T end) {
-        Y_VERIFY_DEBUG_S(begin < end, "begin# " << begin << " end# " << end);
-        EndForBegin[begin] = end;
-    }
-
-    TIntervalMap& operator=(const TIntervalMap<T>&) = default;
-    TIntervalMap& operator=(TIntervalMap<T>&&) = default;
-
-    void Add(const TIntervalMap<T>& b) {
-       *this |= b;
-    }
-
-    void Add(T begin, T end) {
-        *this |= TIntervalMap<T>(begin, end);
-    }
-
-    void Clear() {
-        EndForBegin.clear();
-    }
-
-    void Assign(T begin, T end) {
-        Y_VERIFY_DEBUG_S(begin < end, "begin# " << begin << " end# " << end);
-        EndForBegin.clear();
-        EndForBegin[begin] = end;
-    }
-
-    bool IsEmpty() const {
-        return EndForBegin.empty();
-    }
-
-    auto UpperBound(const T& key) const {
-        return EndForBegin.upper_bound(key);
-    }
-
-    bool IsSubsetOf(const TIntervalSet<T>& b) const {
+template <class T> struct TIntervalMap; // implemented as TMap 
+template <class T> struct TIntervalVec; // implemented as sorted TStackVec 
+template <class T, size_t ThresholdSize = 8> struct TIntervalSet; // implement as either of the above 
+
+template <class T> 
+struct TIntervalMap { 
+    TMap<T, T> EndForBegin; 
+
+    using iterator = typename decltype(EndForBegin)::iterator; 
+    using const_iterator = typename decltype(EndForBegin)::const_iterator; 
+
+    TIntervalMap() = default; 
+    TIntervalMap(const TIntervalMap<T>&) = default; 
+    TIntervalMap(TIntervalMap<T>&&) = default; 
+ 
+    TIntervalMap(T begin, T end) { 
+        Y_VERIFY_DEBUG_S(begin < end, "begin# " << begin << " end# " << end); 
+        EndForBegin[begin] = end; 
+    } 
+
+    TIntervalMap& operator=(const TIntervalMap<T>&) = default; 
+    TIntervalMap& operator=(TIntervalMap<T>&&) = default; 
+
+    void Add(const TIntervalMap<T>& b) { 
+       *this |= b; 
+    } 
+ 
+    void Add(T begin, T end) { 
+        *this |= TIntervalMap<T>(begin, end); 
+    } 
+ 
+    void Clear() { 
+        EndForBegin.clear(); 
+    } 
+ 
+    void Assign(T begin, T end) { 
+        Y_VERIFY_DEBUG_S(begin < end, "begin# " << begin << " end# " << end); 
+        EndForBegin.clear(); 
+        EndForBegin[begin] = end; 
+    } 
+ 
+    bool IsEmpty() const { 
+        return EndForBegin.empty(); 
+    } 
+ 
+    auto UpperBound(const T& key) const { 
+        return EndForBegin.upper_bound(key); 
+    } 
+ 
+    bool IsSubsetOf(const TIntervalSet<T>& b) const { 
         return std::visit([this](auto& var) -> bool { return this->IsSubsetOf(var); }, b.Var);
-    }
-
-    template <class B>
-    bool IsSubsetOf(const B& b) const {
-        auto aIt = EndForBegin.begin();
-        if (aIt == EndForBegin.end()) {
-            return true;
-        }
-        auto bIt = b.UpperBound(aIt->first);
-        if (bIt != b.EndForBegin.begin()) {
-            --bIt;
-        }
-        if (bIt == b.EndForBegin.end()) {
-            return false;
-        }
-        while (true) {
-            //     a---a
-            // b---b 1
-            //  b---b 2
-            //     b---b 3
-            //       b---b 4
-            //         b---b 5
-            //           b-b 6
-            if (bIt->second <= aIt->first) {
-                // 1
-                ++bIt;
-                if (bIt == b.EndForBegin.end()) {
-                    return false;
-                }
-            } else if (bIt->first <= aIt->first) {
-                // 2,3
-                if (bIt->second < aIt->second) {
-                    // 2
-                    return false;
-                }
-                // 3
-                ++aIt;
-                if (aIt == EndForBegin.end()) {
-                    return true;
-                }
-            } else {
-                // 4, 5, 6
-                return false;
-            }
-        }
-    }
-
-    void Subtract(const TIntervalMap<T>& b) {
-        *this -= b;
-    }
-
-    void Subtract(T begin, T end) {
-        *this -= TIntervalMap<T>(begin, end);
-    }
-
-    TString ToString() const {
-        TStringStream str;
-        str << "{";
-        for (auto it = EndForBegin.begin(); it != EndForBegin.end(); ++it) {
-            if (it != EndForBegin.begin()) {
-                str << " U ";
-            }
-            str << "[" << it->first << ", " << it->second << ")";
-        }
-        str << "}";
-        return str.Str();
-    }
-
-    void Verify() const {
-        T lastEnd = Min<T>();
-        for (auto it = EndForBegin.begin(); it != EndForBegin.end(); ++it) {
-            Y_VERIFY_S(it->first < it->second, "begin# " << it->first << " end# " << it->second);
-            if (it != EndForBegin.begin()) {
-                Y_VERIFY_S(it->first > lastEnd, "[" << it->first << ", " << it->second << ") vs " << lastEnd);
-            }
-            lastEnd = it->second;
-        }
-    }
-
+    } 
+ 
+    template <class B> 
+    bool IsSubsetOf(const B& b) const { 
+        auto aIt = EndForBegin.begin(); 
+        if (aIt == EndForBegin.end()) { 
+            return true; 
+        } 
+        auto bIt = b.UpperBound(aIt->first); 
+        if (bIt != b.EndForBegin.begin()) { 
+            --bIt; 
+        } 
+        if (bIt == b.EndForBegin.end()) { 
+            return false; 
+        } 
+        while (true) { 
+            //     a---a 
+            // b---b 1 
+            //  b---b 2 
+            //     b---b 3 
+            //       b---b 4 
+            //         b---b 5 
+            //           b-b 6 
+            if (bIt->second <= aIt->first) { 
+                // 1 
+                ++bIt; 
+                if (bIt == b.EndForBegin.end()) { 
+                    return false; 
+                } 
+            } else if (bIt->first <= aIt->first) { 
+                // 2,3 
+                if (bIt->second < aIt->second) { 
+                    // 2 
+                    return false; 
+                } 
+                // 3 
+                ++aIt; 
+                if (aIt == EndForBegin.end()) { 
+                    return true; 
+                } 
+            } else { 
+                // 4, 5, 6 
+                return false; 
+            } 
+        } 
+    } 
+ 
+    void Subtract(const TIntervalMap<T>& b) { 
+        *this -= b; 
+    } 
+ 
+    void Subtract(T begin, T end) { 
+        *this -= TIntervalMap<T>(begin, end); 
+    } 
+ 
+    TString ToString() const { 
+        TStringStream str; 
+        str << "{"; 
+        for (auto it = EndForBegin.begin(); it != EndForBegin.end(); ++it) { 
+            if (it != EndForBegin.begin()) { 
+                str << " U "; 
+            } 
+            str << "[" << it->first << ", " << it->second << ")"; 
+        } 
+        str << "}"; 
+        return str.Str(); 
+    } 
+ 
+    void Verify() const { 
+        T lastEnd = Min<T>(); 
+        for (auto it = EndForBegin.begin(); it != EndForBegin.end(); ++it) { 
+            Y_VERIFY_S(it->first < it->second, "begin# " << it->first << " end# " << it->second); 
+            if (it != EndForBegin.begin()) { 
+                Y_VERIFY_S(it->first > lastEnd, "[" << it->first << ", " << it->second << ") vs " << lastEnd); 
+            } 
+            lastEnd = it->second; 
+        } 
+    } 
+ 
     size_t Size() const {
         return EndForBegin.size();
     }
 
-    template <class Y>
-    friend bool operator ==(const TIntervalMap<T>& x, const Y& y) {
-        if (x.EndForBegin.size() != y.EndForBegin.size()) {
-            return false;
-        }
-        auto xi = x.EndForBegin.begin(), xe = x.EndForBegin.end();
-        auto yi = y.EndForBegin.begin();
-        for (; xi != xe; ++xi, ++yi) {
-            if (xi->first != yi->first || xi->second != yi->second) {
-                return false;
-            }
-        }
-        return true;
+    template <class Y> 
+    friend bool operator ==(const TIntervalMap<T>& x, const Y& y) { 
+        if (x.EndForBegin.size() != y.EndForBegin.size()) { 
+            return false; 
+        } 
+        auto xi = x.EndForBegin.begin(), xe = x.EndForBegin.end(); 
+        auto yi = y.EndForBegin.begin(); 
+        for (; xi != xe; ++xi, ++yi) { 
+            if (xi->first != yi->first || xi->second != yi->second) { 
+                return false; 
+            } 
+        } 
+        return true; 
     }
 
     explicit operator bool() const {
         return !IsEmpty();
     }
 
-    template <class Y>
-    TIntervalMap<T> operator |(const Y& y) const {
-        TIntervalMap<T> res;
-        auto xIt = EndForBegin.begin();
-        auto yIt = y.EndForBegin.begin();
-        while (xIt != EndForBegin.end() || yIt != y.EndForBegin.end()) {
-            if (yIt == y.EndForBegin.end() || (xIt != EndForBegin.end() && xIt->second < yIt->first)) {
-                res.EndForBegin.insert(res.EndForBegin.end(), *xIt++);
-            } else if (xIt == EndForBegin.end() || yIt->second < xIt->first) {
-                res.EndForBegin.insert(res.EndForBegin.end(), *yIt++);
-            } else { // intervals do intersect
-                T begin = Min(xIt->first, yIt->first), end = Max(xIt->second, yIt->second);
-                ++xIt, ++yIt;
-                for (;;) { // consume any other intervals intersecting with [begin, end)
-                    if (xIt != EndForBegin.end() && xIt->first <= end) {
-                        end = Max(end, xIt->second);
-                        ++xIt;
-                    } else if (yIt != y.EndForBegin.end() && yIt->first <= end) {
-                        end = Max(end, yIt->second);
-                        ++yIt;
-                    } else {
-                        break;
-                    }
-                }
-                res.EndForBegin.emplace_hint(res.EndForBegin.end(), begin, end);
-            }
-        }
-        return res;
-    }
-
-    template <class Y>
-    TIntervalMap<T>& operator |=(const Y& y) {
-        auto yIt = y.EndForBegin.begin();
-        auto ye = y.EndForBegin.end();
-        if (yIt == ye) {
-            return *this;
-        }
-        auto xIt = EndForBegin.upper_bound(yIt->first);
-        if (xIt != EndForBegin.begin()) {
-            --xIt;
-        }
-        while (xIt != EndForBegin.end() && yIt != ye) {
-            if (xIt->second < yIt->first) {
-                ++xIt;
-            } else if (yIt->second < xIt->first) {
-                EndForBegin.insert(xIt, *yIt++);
-            } else { // intervals do intersect
-                T begin = Min(xIt->first, yIt->first), end = Max(xIt->second, yIt->second);
-                auto baseIt = xIt++;
-                ++yIt;
-                for (;;) { // consume any other intervals intersecting with [begin, end)
-                    if (xIt != EndForBegin.end() && xIt->first <= end) {
-                        end = Max(end, xIt->second);
-                        ++xIt;
-                    } else if (yIt != ye && yIt->first <= end) {
-                        end = Max(end, yIt->second);
-                        ++yIt;
-                    } else {
-                        break;
-                    }
-                }
-                if (baseIt->first != begin) {
-                    EndForBegin.emplace_hint(EndForBegin.erase(baseIt, xIt), begin, end);
-                } else {
-                    baseIt->second = end;
-                    EndForBegin.erase(++baseIt, xIt);
-                }
-            }
-        }
-        EndForBegin.insert(yIt, ye);
-        return *this;
-    }
-
-    template <class Y>
-    TIntervalMap<T> operator &(const Y& y) const {
-        TIntervalMap<T> res;
-        auto xIt = EndForBegin.begin();
-        auto yIt = y.EndForBegin.begin();
-        while (xIt != EndForBegin.end() && yIt != y.EndForBegin.end()) {
-            const auto [xf, xs] = *xIt;
-            const auto [yf, ys] = *yIt;
-            if (xs <= yf) {
-                ++xIt;
-            } else if (ys <= xf) {
-                ++yIt;
-            } else { // intervals do intersect
-                const T begin = Max(xf, yf), end = Min(xs, ys);
-                if (xs <= ys) {
-                    ++xIt;
-                }
-                if (ys <= xs) {
-                    ++yIt;
-                }
-                res.EndForBegin.emplace_hint(res.EndForBegin.end(), begin, end);
-            }
-        }
-        return res;
-    }
-
-    template <class Y>
-    TIntervalMap<T>& operator &=(const Y& y) {
-        auto xIt = EndForBegin.begin();
-        auto yIt = y.EndForBegin.begin();
-        std::optional<typename TMap<T, T>::value_type> carry;
-        auto dropFront = [&] {
-            if (carry) {
-                carry.reset();
-            } else {
-                xIt = EndForBegin.erase(xIt);
-            }
-            return xIt;
-        };
-        while ((carry || xIt != EndForBegin.end()) && yIt != y.EndForBegin.end()) {
-            const auto [xf, xs] = carry ? *carry : *xIt;
-            const auto [yf, ys] = *yIt;
-            if (xs <= yf) {
-                dropFront();
-            } else if (ys <= xf) {
-                ++yIt;
-            } else { // intervals do intersect
-                const T begin = Max(xf, yf), end = Min(xs, ys);
-                if (!carry && xs <= ys && xf == begin) { // just replace interval's end
-                    xIt->second = end;
-                } else { // or replace the whole entry
-                    xIt = EndForBegin.emplace_hint(dropFront(), begin, end);
-                }
-                ++xIt;
-                if (ys <= xs) {
-                    ++yIt;
-                }
-                if (end != xs) { // there is remaining part of the interval -- keep it
-                    carry.emplace(end, xs);
-                }
-            }
-        }
-        EndForBegin.erase(xIt, EndForBegin.end());
-        return *this;
-    }
-
-    template <class Y>
-    TIntervalMap<T> operator -(const Y& y) const {
-        return TIntervalMap<T>(*this) -= y;
-    }
-
-    template <class Y>
-    TIntervalMap<T>& operator -=(const Y& y) {
-        if constexpr (std::is_same_v<TIntervalMap<T>, Y>) {
-            if (this == &y) {
-                EndForBegin.clear();
-                return *this;
-            }
-        }
-
-        TIntervalMap<T> res;
-        auto xIt = EndForBegin.begin();
-        if (y.EndForBegin.size() == 1) {
-            xIt = EndForBegin.upper_bound(y.EndForBegin.begin()->first);
-            if (xIt != EndForBegin.begin()) {
-                --xIt;
-            }
-        }
-        auto yIt = y.EndForBegin.begin();
-        while (xIt != EndForBegin.end() && yIt != y.EndForBegin.end()) {
-            const auto [xf, xs] = *xIt;
-            const auto [yf, ys] = *yIt;
-            if (xs <= yf) {
-                ++xIt;
-            } else if (ys <= xf) {
-                ++yIt;
-            } else {
-                xIt = EndForBegin.erase(xIt);
-                if (xf < yf) {
-                    xIt = EndForBegin.emplace_hint(xIt, xf, yf);
-                }
-                if (ys < xs) {
-                    xIt = EndForBegin.emplace_hint(xf < yf ? std::next(xIt) : xIt, ys, xs);
-                }
-            }
-        }
-        return *this;
-    }
+    template <class Y> 
+    TIntervalMap<T> operator |(const Y& y) const { 
+        TIntervalMap<T> res; 
+        auto xIt = EndForBegin.begin(); 
+        auto yIt = y.EndForBegin.begin(); 
+        while (xIt != EndForBegin.end() || yIt != y.EndForBegin.end()) { 
+            if (yIt == y.EndForBegin.end() || (xIt != EndForBegin.end() && xIt->second < yIt->first)) { 
+                res.EndForBegin.insert(res.EndForBegin.end(), *xIt++); 
+            } else if (xIt == EndForBegin.end() || yIt->second < xIt->first) { 
+                res.EndForBegin.insert(res.EndForBegin.end(), *yIt++); 
+            } else { // intervals do intersect 
+                T begin = Min(xIt->first, yIt->first), end = Max(xIt->second, yIt->second); 
+                ++xIt, ++yIt; 
+                for (;;) { // consume any other intervals intersecting with [begin, end) 
+                    if (xIt != EndForBegin.end() && xIt->first <= end) { 
+                        end = Max(end, xIt->second); 
+                        ++xIt; 
+                    } else if (yIt != y.EndForBegin.end() && yIt->first <= end) { 
+                        end = Max(end, yIt->second); 
+                        ++yIt; 
+                    } else { 
+                        break; 
+                    } 
+                } 
+                res.EndForBegin.emplace_hint(res.EndForBegin.end(), begin, end); 
+            } 
+        } 
+        return res; 
+    } 
+ 
+    template <class Y> 
+    TIntervalMap<T>& operator |=(const Y& y) { 
+        auto yIt = y.EndForBegin.begin(); 
+        auto ye = y.EndForBegin.end(); 
+        if (yIt == ye) { 
+            return *this; 
+        } 
+        auto xIt = EndForBegin.upper_bound(yIt->first); 
+        if (xIt != EndForBegin.begin()) { 
+            --xIt; 
+        } 
+        while (xIt != EndForBegin.end() && yIt != ye) { 
+            if (xIt->second < yIt->first) { 
+                ++xIt; 
+            } else if (yIt->second < xIt->first) { 
+                EndForBegin.insert(xIt, *yIt++); 
+            } else { // intervals do intersect 
+                T begin = Min(xIt->first, yIt->first), end = Max(xIt->second, yIt->second); 
+                auto baseIt = xIt++; 
+                ++yIt; 
+                for (;;) { // consume any other intervals intersecting with [begin, end) 
+                    if (xIt != EndForBegin.end() && xIt->first <= end) { 
+                        end = Max(end, xIt->second); 
+                        ++xIt; 
+                    } else if (yIt != ye && yIt->first <= end) { 
+                        end = Max(end, yIt->second); 
+                        ++yIt; 
+                    } else { 
+                        break; 
+                    } 
+                } 
+                if (baseIt->first != begin) { 
+                    EndForBegin.emplace_hint(EndForBegin.erase(baseIt, xIt), begin, end); 
+                } else { 
+                    baseIt->second = end; 
+                    EndForBegin.erase(++baseIt, xIt); 
+                } 
+            } 
+        } 
+        EndForBegin.insert(yIt, ye); 
+        return *this; 
+    } 
+ 
+    template <class Y> 
+    TIntervalMap<T> operator &(const Y& y) const { 
+        TIntervalMap<T> res; 
+        auto xIt = EndForBegin.begin(); 
+        auto yIt = y.EndForBegin.begin(); 
+        while (xIt != EndForBegin.end() && yIt != y.EndForBegin.end()) { 
+            const auto [xf, xs] = *xIt; 
+            const auto [yf, ys] = *yIt; 
+            if (xs <= yf) { 
+                ++xIt; 
+            } else if (ys <= xf) { 
+                ++yIt; 
+            } else { // intervals do intersect 
+                const T begin = Max(xf, yf), end = Min(xs, ys); 
+                if (xs <= ys) { 
+                    ++xIt; 
+                } 
+                if (ys <= xs) { 
+                    ++yIt; 
+                } 
+                res.EndForBegin.emplace_hint(res.EndForBegin.end(), begin, end); 
+            } 
+        } 
+        return res; 
+    } 
+ 
+    template <class Y> 
+    TIntervalMap<T>& operator &=(const Y& y) { 
+        auto xIt = EndForBegin.begin(); 
+        auto yIt = y.EndForBegin.begin(); 
+        std::optional<typename TMap<T, T>::value_type> carry; 
+        auto dropFront = [&] { 
+            if (carry) { 
+                carry.reset(); 
+            } else { 
+                xIt = EndForBegin.erase(xIt); 
+            } 
+            return xIt; 
+        }; 
+        while ((carry || xIt != EndForBegin.end()) && yIt != y.EndForBegin.end()) { 
+            const auto [xf, xs] = carry ? *carry : *xIt; 
+            const auto [yf, ys] = *yIt; 
+            if (xs <= yf) { 
+                dropFront(); 
+            } else if (ys <= xf) { 
+                ++yIt; 
+            } else { // intervals do intersect 
+                const T begin = Max(xf, yf), end = Min(xs, ys); 
+                if (!carry && xs <= ys && xf == begin) { // just replace interval's end 
+                    xIt->second = end; 
+                } else { // or replace the whole entry 
+                    xIt = EndForBegin.emplace_hint(dropFront(), begin, end); 
+                } 
+                ++xIt; 
+                if (ys <= xs) { 
+                    ++yIt; 
+                } 
+                if (end != xs) { // there is remaining part of the interval -- keep it 
+                    carry.emplace(end, xs); 
+                } 
+            } 
+        } 
+        EndForBegin.erase(xIt, EndForBegin.end()); 
+        return *this; 
+    } 
+ 
+    template <class Y> 
+    TIntervalMap<T> operator -(const Y& y) const { 
+        return TIntervalMap<T>(*this) -= y; 
+    } 
+ 
+    template <class Y> 
+    TIntervalMap<T>& operator -=(const Y& y) { 
+        if constexpr (std::is_same_v<TIntervalMap<T>, Y>) { 
+            if (this == &y) { 
+                EndForBegin.clear(); 
+                return *this; 
+            } 
+        } 
+ 
+        TIntervalMap<T> res; 
+        auto xIt = EndForBegin.begin(); 
+        if (y.EndForBegin.size() == 1) { 
+            xIt = EndForBegin.upper_bound(y.EndForBegin.begin()->first); 
+            if (xIt != EndForBegin.begin()) { 
+                --xIt; 
+            } 
+        } 
+        auto yIt = y.EndForBegin.begin(); 
+        while (xIt != EndForBegin.end() && yIt != y.EndForBegin.end()) { 
+            const auto [xf, xs] = *xIt; 
+            const auto [yf, ys] = *yIt; 
+            if (xs <= yf) { 
+                ++xIt; 
+            } else if (ys <= xf) { 
+                ++yIt; 
+            } else { 
+                xIt = EndForBegin.erase(xIt); 
+                if (xf < yf) { 
+                    xIt = EndForBegin.emplace_hint(xIt, xf, yf); 
+                } 
+                if (ys < xs) { 
+                    xIt = EndForBegin.emplace_hint(xf < yf ? std::next(xIt) : xIt, ys, xs); 
+                } 
+            } 
+        } 
+        return *this; 
+    } 
 };
 
-template <class T>
-struct TIntervalVec {
-    static constexpr size_t StackSize = 1;
-
-    TStackVec<std::pair<T, T>, StackSize> EndForBegin; // <begin, end>
-
-    using iterator = typename decltype(EndForBegin)::iterator;
-    using const_iterator = typename decltype(EndForBegin)::const_iterator;
-
-    TIntervalVec() = default;
-    TIntervalVec(const TIntervalVec<T>&) = default;
-    TIntervalVec(TIntervalVec<T>&&) = default;
-
-    TIntervalVec(T begin, T end) {
-        Y_VERIFY_DEBUG_S(begin < end, "begin# " << begin << " end# " << end);
-        EndForBegin.emplace_back(begin, end);
-    }
-
-    TIntervalVec& operator=(const TIntervalVec<T>&) = default;
-    TIntervalVec& operator=(TIntervalVec<T>&&) = default;
-
-    void Add(const TIntervalVec<T>& b) {
-       *this |= b;
-    }
-
-    void Add(T begin, T end) {
-        *this |= TIntervalVec<T>(begin, end);
-    }
-
-    void Clear() {
-        EndForBegin.clear();
-    }
-
-    void Assign(T begin, T end) {
-        Y_VERIFY_DEBUG_S(begin < end, "begin# " << begin << " end# " << end);
-        EndForBegin.assign(1, {begin, end});
-    }
-
-    bool IsEmpty() const {
-        return EndForBegin.empty();
-    }
-
-    auto UpperBound(const T& key) const {
-        // Do not use binary search to optimize for small vectors
-        for (auto i = EndForBegin.begin(), e = EndForBegin.end(); i != e; ++i) {
-            if (key < i->first) {
-                return i;
-            }
-        }
-        return EndForBegin.end();
-    }
-
-    bool IsSubsetOf(const TIntervalSet<T>& b) const {
+template <class T> 
+struct TIntervalVec { 
+    static constexpr size_t StackSize = 1; 
+ 
+    TStackVec<std::pair<T, T>, StackSize> EndForBegin; // <begin, end> 
+ 
+    using iterator = typename decltype(EndForBegin)::iterator; 
+    using const_iterator = typename decltype(EndForBegin)::const_iterator; 
+ 
+    TIntervalVec() = default; 
+    TIntervalVec(const TIntervalVec<T>&) = default; 
+    TIntervalVec(TIntervalVec<T>&&) = default; 
+ 
+    TIntervalVec(T begin, T end) { 
+        Y_VERIFY_DEBUG_S(begin < end, "begin# " << begin << " end# " << end); 
+        EndForBegin.emplace_back(begin, end); 
+    } 
+ 
+    TIntervalVec& operator=(const TIntervalVec<T>&) = default; 
+    TIntervalVec& operator=(TIntervalVec<T>&&) = default; 
+ 
+    void Add(const TIntervalVec<T>& b) { 
+       *this |= b; 
+    } 
+ 
+    void Add(T begin, T end) { 
+        *this |= TIntervalVec<T>(begin, end); 
+    } 
+ 
+    void Clear() { 
+        EndForBegin.clear(); 
+    } 
+ 
+    void Assign(T begin, T end) { 
+        Y_VERIFY_DEBUG_S(begin < end, "begin# " << begin << " end# " << end); 
+        EndForBegin.assign(1, {begin, end}); 
+    } 
+ 
+    bool IsEmpty() const { 
+        return EndForBegin.empty(); 
+    } 
+ 
+    auto UpperBound(const T& key) const { 
+        // Do not use binary search to optimize for small vectors 
+        for (auto i = EndForBegin.begin(), e = EndForBegin.end(); i != e; ++i) { 
+            if (key < i->first) { 
+                return i; 
+            } 
+        } 
+        return EndForBegin.end(); 
+    } 
+ 
+    bool IsSubsetOf(const TIntervalSet<T>& b) const { 
         return std::visit([this](auto& var) -> bool { return this->IsSubsetOf(var); }, b.Var);
-    }
-
-    template <class B>
-    bool IsSubsetOf(const B& b) const {
-        auto aIt = EndForBegin.begin();
-        if (aIt == EndForBegin.end()) {
-            return true;
-        }
-        // Do not use binary search, optimized for small interval vecs, anyway worst-case is O(n) + O(m)
-        auto bIt = b.EndForBegin.begin();
-        if (bIt == b.EndForBegin.end()) {
-            return false;
-        }
-        while (true) {
-            //     a---a
-            // b---b 1
-            //  b---b 2
-            //     b---b 3
-            //       b---b 4
-            //         b---b 5
-            //            b-b 6
-            if (bIt->second <= aIt->first) {
-                // 1
-                ++bIt;
-                if (bIt == b.EndForBegin.end()) {
-                    return false;
-                }
-            } else if (bIt->first <= aIt->first) {
-                // 2,3
-                if (bIt->second < aIt->second) {
-                    // 2
-                    return false;
-                }
-                // 3
-                ++aIt;
-                if (aIt == EndForBegin.end()) {
-                    return true;
-                }
-            } else {
-                // 4, 5, 6
-                return false;
-            }
-        }
-    }
-
-    void Subtract(const TIntervalVec<T>& b) {
-        *this -= b;
-    }
-
-    void Subtract(T begin, T end) {
-        *this -= TIntervalVec<T>(begin, end);
-    }
-
-    TString ToString() const {
-        TStringStream str;
-        str << "{";
-        for (auto it = EndForBegin.begin(); it != EndForBegin.end(); ++it) {
-            if (it != EndForBegin.begin()) {
-                str << " U ";
-            }
-            str << "[" << it->first << ", " << it->second << ")";
-        }
-        str << "}";
-        return str.Str();
-    }
-
-    void Verify() const {
-        T lastEnd = Min<T>();
-        for (auto it = EndForBegin.begin(); it != EndForBegin.end(); ++it) {
-            Y_VERIFY_S(it->first < it->second, "begin# " << it->first << " end# " << it->second);
-            if (it != EndForBegin.begin()) {
-                Y_VERIFY_S(it->first > lastEnd, "[" << it->first << ", " << it->second << ") vs " << lastEnd);
-            }
-            lastEnd = it->second;
-        }
-    }
-
-    size_t Size() const {
-        return EndForBegin.size();
-    }
-
-    template <class Y>
-    friend bool operator ==(const TIntervalVec<T>& x, const Y& y) {
-        if (x.EndForBegin.size() != y.EndForBegin.size()) {
-            return false;
-        }
-        auto xi = x.EndForBegin.begin(), xe = x.EndForBegin.end();
-        auto yi = y.EndForBegin.begin();
-        for (; xi != xe; ++xi, ++yi) {
-            if (xi->first != yi->first || xi->second != yi->second) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    explicit operator bool() const {
-        return !IsEmpty();
-    }
-
-    template <class Y>
-    TIntervalVec<T> operator |(const Y& y) const {
-        TIntervalVec<T> res;
-        auto xIt = EndForBegin.begin();
-        auto yIt = y.EndForBegin.begin();
-        while (xIt != EndForBegin.end() || yIt != y.EndForBegin.end()) {
-            if (yIt == y.EndForBegin.end() || (xIt != EndForBegin.end() && xIt->second < yIt->first)) {
-                res.EndForBegin.emplace_back(*xIt++);
-            } else if (xIt == EndForBegin.end() || yIt->second < xIt->first) {
-                res.EndForBegin.emplace_back(*yIt++);
-            } else { // intervals do intersect
-                T begin = Min(xIt->first, yIt->first), end = Max(xIt->second, yIt->second);
-                ++xIt, ++yIt;
-                for (;;) { // consume any other intervals intersecting with [begin, end)
-                    if (xIt != EndForBegin.end() && xIt->first <= end) {
-                        end = Max(end, xIt->second);
-                        ++xIt;
-                    } else if (yIt != y.EndForBegin.end() && yIt->first <= end) {
-                        end = Max(end, yIt->second);
-                        ++yIt;
-                    } else {
-                        break;
-                    }
-                }
-                res.EndForBegin.emplace_back(begin, end);
-            }
-        }
-        return res;
-    }
-
-    template <class Y>
-    TIntervalVec<T>& operator |=(const Y& y) {
-        size_t xi = 0;
-        size_t xo = 0;
-        auto yi = y.EndForBegin.begin();
-        auto ye = y.EndForBegin.end();
-        while (yi != ye && xi != EndForBegin.size()) {
-            if (EndForBegin[xi].second < yi->first) {
-                if (xi != xo) {
-                    EndForBegin[xo] = EndForBegin[xi];
-                }
-                ++xi;
-                ++xo;
-            } else if (yi->second < EndForBegin[xi].first) {
-                if (xo == xi) {
-                    EndForBegin.insert(EndForBegin.begin() + xo, *yi++);
-                    ++xi;
-                    ++xo;
-                } else {
-                    EndForBegin[xo++] = *yi++;
-                }
-            } else { // intervals do intersect
-                T begin = Min(EndForBegin[xi].first, yi->first);
-                T end = Max(EndForBegin[xi].second, yi->second);
-                ++xi;
-                ++yi;
-                for (;;) { // consume any other intervals intersecting with [begin, end)
-                    if (xi != EndForBegin.size() && EndForBegin[xi].first <= end) {
-                        end = Max(end, EndForBegin[xi].second);
-                        ++xi;
-                    } else if (yi != ye && yi->first <= end) {
-                        end = Max(end, yi->second);
-                        ++yi;
-                    } else {
-                        break;
-                    }
-                }
-                EndForBegin[xo++] = {begin, end};
-            }
-        }
-        EndForBegin.erase(EndForBegin.begin() + xo, EndForBegin.begin() + xi);
-        EndForBegin.insert(EndForBegin.end(), yi, ye);
-        return *this;
-    }
-
-    template <class Y>
-    TIntervalVec<T> operator &(const Y& y) const {
-        TIntervalVec<T> res;
-        auto xIt = EndForBegin.begin();
-        auto yIt = y.EndForBegin.begin();
-        while (xIt != EndForBegin.end() && yIt != y.EndForBegin.end()) {
-            const auto [xf, xs] = *xIt;
-            const auto [yf, ys] = *yIt;
-            if (xs <= yf) {
-                ++xIt;
-            } else if (ys <= xf) {
-                ++yIt;
-            } else { // intervals do intersect
-                const T begin = Max(xf, yf), end = Min(xs, ys);
-                if (xs <= ys) {
-                    ++xIt;
-                }
-                if (ys <= xs) {
-                    ++yIt;
-                }
-                res.EndForBegin.emplace_back(begin, end);
-            }
-        }
-        return res;
-    }
-
-    template <class Y>
-    TIntervalVec<T>& operator &=(const Y& y) {
-        size_t xi = 0;
-        auto yIt = y.EndForBegin.begin();
-        std::optional<std::pair<T, T>> carry;
-        while ((carry || xi != EndForBegin.size()) && yIt != y.EndForBegin.end()) {
-            const auto [xf, xs] = carry ? *carry : EndForBegin[xi];
-            const auto [yf, ys] = *yIt;
-            if (xs <= yf) {
-                if (carry) {
-                    carry.reset();
-                } else {
-                    EndForBegin.erase(EndForBegin.begin() + xi);
-                }
-            } else if (ys <= xf) {
-                ++yIt;
-            } else { // intervals do intersect
-                const T begin = Max(xf, yf), end = Min(xs, ys);
-                if (!carry) {
-                    EndForBegin[xi] = {begin, end};
-                } else {
-                    carry.reset();
-                    EndForBegin.emplace(EndForBegin.begin() + xi, begin, end);
-                }
-                ++xi;
-                if (ys <= xs) {
-                    ++yIt;
-                }
-                if (end != xs) { // there is remaining part of the interval -- keep it
-                    carry.emplace(end, xs);
-                }
-            }
-        }
-        EndForBegin.resize(xi);
-        return *this;
-    }
-
-    template <class Y>
-    TIntervalVec<T> operator -(const Y& y) const {
-        return TIntervalVec<T>(*this) -= y;
-    }
-
-    template <class Y>
-    TIntervalVec<T>& operator -=(const Y& y) {
-        if constexpr (std::is_same_v<TIntervalVec<T>, Y>) {
-            if (this == &y) {
-                EndForBegin.clear();
-                return *this;
-            }
-        }
-
-        TIntervalVec<T> res;
-        size_t xi = 0;
-        auto yIt = y.EndForBegin.begin();
-        while (xi != EndForBegin.size() && yIt != y.EndForBegin.end()) {
-            const auto [xf, xs] = EndForBegin[xi];
-            const auto [yf, ys] = *yIt;
-            if (xs <= yf) {
-                ++xi;
-            } else if (ys <= xf) {
-                ++yIt;
-            } else {
-                if (xf < yf) {
-                    EndForBegin[xi++].second = yf;
-                    if (ys < xs) {
-                        EndForBegin.emplace(EndForBegin.begin() + xi, ys, xs);
-                    }
-                } else if (ys < xs) {
-                    EndForBegin[xi].first = ys;
-                } else {
-                    EndForBegin.erase(EndForBegin.begin() + xi);
-                }
-            }
-        }
-        return *this;
-    }
-};
-
-// helper type for the visitor
-template<class... Ts> struct overloaded : Ts... { using Ts::operator()...; };
-// explicit deduction guide (not needed as of C++20)
-template<class... Ts> overloaded(Ts...) -> overloaded<Ts...>;
-
-template <class T, size_t ThresholdSize>
-struct TIntervalSet {
-    // Vec is used for small size, up to ThresholdSize intervals
-    // If vector become larger, then data is moved into Map
-    using TVec = TIntervalVec<T>;
-    using TMap = TIntervalMap<T>;
-    using TVar = std::variant<TVec, TMap>;
-    TVar Var;
-
-    class TConstIterator {
-        using TVecIter = typename TIntervalVec<T>::const_iterator;
-        using TMapIter = typename TIntervalMap<T>::const_iterator;
-        using TValue = std::pair<T, T>;
-
-        std::variant<TVecIter, TMapIter> Iter;
-
-    public:
-        TConstIterator() {}
-
-        explicit TConstIterator(TVecIter vecIter)
-            : Iter(vecIter)
-        {}
-
-        explicit TConstIterator(TMapIter mapIter)
-            : Iter(mapIter)
-        {}
-
-        TConstIterator(const TConstIterator&) = default;
-        TConstIterator& operator=(const TConstIterator& other) = default;
-
-        TValue operator*() const {
-            return std::visit([](auto& iter) -> TValue { return *iter; }, Iter);
-        }
-
-        TConstIterator& operator++() {
-            std::visit([](auto& iter) { iter++; }, Iter);
-            return *this;
-        }
-
-        friend bool operator==(const TConstIterator& x, const TConstIterator& y) {
-            return x.Iter == y.Iter;
-        }
-
-        friend bool operator!=(const TConstIterator& x, const TConstIterator& y) {
-            return !(x == y);
-        }
-    };
-
-    using const_iterator = TConstIterator;
-
-    TIntervalSet() = default;
-    TIntervalSet(const TIntervalSet&) = default;
-    TIntervalSet(TIntervalSet&&) = default;
-
-    TIntervalSet(T begin, T end)
-        : Var(std::in_place_type<TVec>, begin, end)
-    {}
-
-    TIntervalSet(const TIntervalVec<T>& vec) : Var(vec) {}
-    TIntervalSet(TIntervalVec<T>&& vec) : Var(std::move(vec)) {}
-    TIntervalSet(const TIntervalMap<T>& map) : Var(map) {}
-    TIntervalSet(TIntervalMap<T>&& map) : Var(std::move(map)) {}
-
-    TIntervalSet& operator=(const TIntervalSet&) = default;
-    TIntervalSet& operator=(TIntervalSet&&) = default;
-
-    TIntervalSet& operator=(const TIntervalVec<T>& vec) {
-        Var = vec;
-        return *this;
-    }
-
-    TIntervalSet& operator=(TIntervalVec<T>&& vec) {
-        Var = std::move(vec);
-        return *this;
-    }
-
-    TIntervalSet& operator=(const TIntervalMap<T>& map) {
-        Var = map;
-        return *this;
-    }
-
-    TIntervalSet& operator=(TIntervalMap<T>&& map) {
-        Var = std::move(map);
-        return *this;
-    }
-
-    TConstIterator begin() const {
-        return std::visit([](auto& var) -> TConstIterator { return TConstIterator(var.EndForBegin.begin()); }, Var);
-    }
-
-    TConstIterator end() const {
-        return std::visit([](auto& var) -> TConstIterator { return TConstIterator(var.EndForBegin.end()); }, Var);
-    }
-
-    bool IsVec() const {
-        return Var.index() == 0;
-    }
-
-    template <class Y>
-    void Add(const Y& y) {
-       *this |= y;
-    }
-
-    void Add(T begin, T end) {
-        *this |= TIntervalVec<T>(begin, end);
-    }
-
-    void Clear() {
-        std::visit([this](auto&& var) {
-            if constexpr (std::is_same_v<std::decay_t<decltype(var)>, TVec>) {
-                var.Clear(); // just clear vector (do not reset storage)
-            } else {
-                Var = TVec(); // use empty vector instead of map
-            }
-        }, Var);
-    }
-
-    void Assign(T begin, T end) {
-        std::visit(overloaded {
-            [=](TVec& vec) {
-                vec.Assign(begin, end); // just clear vector (do not reset storage)
-            },
-            [=](TMap&) {
-                Var = TVec(begin, end); // use vector instead of map
-            }
-        }, Var);
-    }
-
-    bool IsEmpty() const {
-        return std::visit([](auto& var) -> bool { return var.IsEmpty(); }, Var);
-    }
-
-    template <class Y>
-    bool IsSubsetOf(const Y& y) const {
-        return std::visit([&y](auto& var) -> bool { return var.IsSubsetOf(y); }, Var);
-    }
-
-    bool IsSubsetOf(const TIntervalSet& y) const {
+    } 
+ 
+    template <class B> 
+    bool IsSubsetOf(const B& b) const { 
+        auto aIt = EndForBegin.begin(); 
+        if (aIt == EndForBegin.end()) { 
+            return true; 
+        } 
+        // Do not use binary search, optimized for small interval vecs, anyway worst-case is O(n) + O(m) 
+        auto bIt = b.EndForBegin.begin(); 
+        if (bIt == b.EndForBegin.end()) { 
+            return false; 
+        } 
+        while (true) { 
+            //     a---a 
+            // b---b 1 
+            //  b---b 2 
+            //     b---b 3 
+            //       b---b 4 
+            //         b---b 5 
+            //            b-b 6 
+            if (bIt->second <= aIt->first) { 
+                // 1 
+                ++bIt; 
+                if (bIt == b.EndForBegin.end()) { 
+                    return false; 
+                } 
+            } else if (bIt->first <= aIt->first) { 
+                // 2,3 
+                if (bIt->second < aIt->second) { 
+                    // 2 
+                    return false; 
+                } 
+                // 3 
+                ++aIt; 
+                if (aIt == EndForBegin.end()) { 
+                    return true; 
+                } 
+            } else { 
+                // 4, 5, 6 
+                return false; 
+            } 
+        } 
+    } 
+ 
+    void Subtract(const TIntervalVec<T>& b) { 
+        *this -= b; 
+    } 
+ 
+    void Subtract(T begin, T end) { 
+        *this -= TIntervalVec<T>(begin, end); 
+    } 
+ 
+    TString ToString() const { 
+        TStringStream str; 
+        str << "{"; 
+        for (auto it = EndForBegin.begin(); it != EndForBegin.end(); ++it) { 
+            if (it != EndForBegin.begin()) { 
+                str << " U "; 
+            } 
+            str << "[" << it->first << ", " << it->second << ")"; 
+        } 
+        str << "}"; 
+        return str.Str(); 
+    } 
+ 
+    void Verify() const { 
+        T lastEnd = Min<T>(); 
+        for (auto it = EndForBegin.begin(); it != EndForBegin.end(); ++it) { 
+            Y_VERIFY_S(it->first < it->second, "begin# " << it->first << " end# " << it->second); 
+            if (it != EndForBegin.begin()) { 
+                Y_VERIFY_S(it->first > lastEnd, "[" << it->first << ", " << it->second << ") vs " << lastEnd); 
+            } 
+            lastEnd = it->second; 
+        } 
+    } 
+ 
+    size_t Size() const { 
+        return EndForBegin.size(); 
+    } 
+ 
+    template <class Y> 
+    friend bool operator ==(const TIntervalVec<T>& x, const Y& y) { 
+        if (x.EndForBegin.size() != y.EndForBegin.size()) { 
+            return false; 
+        } 
+        auto xi = x.EndForBegin.begin(), xe = x.EndForBegin.end(); 
+        auto yi = y.EndForBegin.begin(); 
+        for (; xi != xe; ++xi, ++yi) { 
+            if (xi->first != yi->first || xi->second != yi->second) { 
+                return false; 
+            } 
+        } 
+        return true; 
+    } 
+ 
+    explicit operator bool() const { 
+        return !IsEmpty(); 
+    } 
+ 
+    template <class Y> 
+    TIntervalVec<T> operator |(const Y& y) const { 
+        TIntervalVec<T> res; 
+        auto xIt = EndForBegin.begin(); 
+        auto yIt = y.EndForBegin.begin(); 
+        while (xIt != EndForBegin.end() || yIt != y.EndForBegin.end()) { 
+            if (yIt == y.EndForBegin.end() || (xIt != EndForBegin.end() && xIt->second < yIt->first)) { 
+                res.EndForBegin.emplace_back(*xIt++); 
+            } else if (xIt == EndForBegin.end() || yIt->second < xIt->first) { 
+                res.EndForBegin.emplace_back(*yIt++); 
+            } else { // intervals do intersect 
+                T begin = Min(xIt->first, yIt->first), end = Max(xIt->second, yIt->second); 
+                ++xIt, ++yIt; 
+                for (;;) { // consume any other intervals intersecting with [begin, end) 
+                    if (xIt != EndForBegin.end() && xIt->first <= end) { 
+                        end = Max(end, xIt->second); 
+                        ++xIt; 
+                    } else if (yIt != y.EndForBegin.end() && yIt->first <= end) { 
+                        end = Max(end, yIt->second); 
+                        ++yIt; 
+                    } else { 
+                        break; 
+                    } 
+                } 
+                res.EndForBegin.emplace_back(begin, end); 
+            } 
+        } 
+        return res; 
+    } 
+ 
+    template <class Y> 
+    TIntervalVec<T>& operator |=(const Y& y) { 
+        size_t xi = 0; 
+        size_t xo = 0; 
+        auto yi = y.EndForBegin.begin(); 
+        auto ye = y.EndForBegin.end(); 
+        while (yi != ye && xi != EndForBegin.size()) { 
+            if (EndForBegin[xi].second < yi->first) { 
+                if (xi != xo) { 
+                    EndForBegin[xo] = EndForBegin[xi]; 
+                } 
+                ++xi; 
+                ++xo; 
+            } else if (yi->second < EndForBegin[xi].first) { 
+                if (xo == xi) { 
+                    EndForBegin.insert(EndForBegin.begin() + xo, *yi++); 
+                    ++xi; 
+                    ++xo; 
+                } else { 
+                    EndForBegin[xo++] = *yi++; 
+                } 
+            } else { // intervals do intersect 
+                T begin = Min(EndForBegin[xi].first, yi->first); 
+                T end = Max(EndForBegin[xi].second, yi->second); 
+                ++xi; 
+                ++yi; 
+                for (;;) { // consume any other intervals intersecting with [begin, end) 
+                    if (xi != EndForBegin.size() && EndForBegin[xi].first <= end) { 
+                        end = Max(end, EndForBegin[xi].second); 
+                        ++xi; 
+                    } else if (yi != ye && yi->first <= end) { 
+                        end = Max(end, yi->second); 
+                        ++yi; 
+                    } else { 
+                        break; 
+                    } 
+                } 
+                EndForBegin[xo++] = {begin, end}; 
+            } 
+        } 
+        EndForBegin.erase(EndForBegin.begin() + xo, EndForBegin.begin() + xi); 
+        EndForBegin.insert(EndForBegin.end(), yi, ye); 
+        return *this; 
+    } 
+ 
+    template <class Y> 
+    TIntervalVec<T> operator &(const Y& y) const { 
+        TIntervalVec<T> res; 
+        auto xIt = EndForBegin.begin(); 
+        auto yIt = y.EndForBegin.begin(); 
+        while (xIt != EndForBegin.end() && yIt != y.EndForBegin.end()) { 
+            const auto [xf, xs] = *xIt; 
+            const auto [yf, ys] = *yIt; 
+            if (xs <= yf) { 
+                ++xIt; 
+            } else if (ys <= xf) { 
+                ++yIt; 
+            } else { // intervals do intersect 
+                const T begin = Max(xf, yf), end = Min(xs, ys); 
+                if (xs <= ys) { 
+                    ++xIt; 
+                } 
+                if (ys <= xs) { 
+                    ++yIt; 
+                } 
+                res.EndForBegin.emplace_back(begin, end); 
+            } 
+        } 
+        return res; 
+    } 
+ 
+    template <class Y> 
+    TIntervalVec<T>& operator &=(const Y& y) { 
+        size_t xi = 0; 
+        auto yIt = y.EndForBegin.begin(); 
+        std::optional<std::pair<T, T>> carry; 
+        while ((carry || xi != EndForBegin.size()) && yIt != y.EndForBegin.end()) { 
+            const auto [xf, xs] = carry ? *carry : EndForBegin[xi]; 
+            const auto [yf, ys] = *yIt; 
+            if (xs <= yf) { 
+                if (carry) { 
+                    carry.reset(); 
+                } else { 
+                    EndForBegin.erase(EndForBegin.begin() + xi); 
+                } 
+            } else if (ys <= xf) { 
+                ++yIt; 
+            } else { // intervals do intersect 
+                const T begin = Max(xf, yf), end = Min(xs, ys); 
+                if (!carry) { 
+                    EndForBegin[xi] = {begin, end}; 
+                } else { 
+                    carry.reset(); 
+                    EndForBegin.emplace(EndForBegin.begin() + xi, begin, end); 
+                } 
+                ++xi; 
+                if (ys <= xs) { 
+                    ++yIt; 
+                } 
+                if (end != xs) { // there is remaining part of the interval -- keep it 
+                    carry.emplace(end, xs); 
+                } 
+            } 
+        } 
+        EndForBegin.resize(xi); 
+        return *this; 
+    } 
+ 
+    template <class Y> 
+    TIntervalVec<T> operator -(const Y& y) const { 
+        return TIntervalVec<T>(*this) -= y; 
+    } 
+ 
+    template <class Y> 
+    TIntervalVec<T>& operator -=(const Y& y) { 
+        if constexpr (std::is_same_v<TIntervalVec<T>, Y>) { 
+            if (this == &y) { 
+                EndForBegin.clear(); 
+                return *this; 
+            } 
+        } 
+ 
+        TIntervalVec<T> res; 
+        size_t xi = 0; 
+        auto yIt = y.EndForBegin.begin(); 
+        while (xi != EndForBegin.size() && yIt != y.EndForBegin.end()) { 
+            const auto [xf, xs] = EndForBegin[xi]; 
+            const auto [yf, ys] = *yIt; 
+            if (xs <= yf) { 
+                ++xi; 
+            } else if (ys <= xf) { 
+                ++yIt; 
+            } else { 
+                if (xf < yf) { 
+                    EndForBegin[xi++].second = yf; 
+                    if (ys < xs) { 
+                        EndForBegin.emplace(EndForBegin.begin() + xi, ys, xs); 
+                    } 
+                } else if (ys < xs) { 
+                    EndForBegin[xi].first = ys; 
+                } else { 
+                    EndForBegin.erase(EndForBegin.begin() + xi); 
+                } 
+            } 
+        } 
+        return *this; 
+    } 
+}; 
+ 
+// helper type for the visitor 
+template<class... Ts> struct overloaded : Ts... { using Ts::operator()...; }; 
+// explicit deduction guide (not needed as of C++20) 
+template<class... Ts> overloaded(Ts...) -> overloaded<Ts...>; 
+ 
+template <class T, size_t ThresholdSize> 
+struct TIntervalSet { 
+    // Vec is used for small size, up to ThresholdSize intervals 
+    // If vector become larger, then data is moved into Map 
+    using TVec = TIntervalVec<T>; 
+    using TMap = TIntervalMap<T>; 
+    using TVar = std::variant<TVec, TMap>; 
+    TVar Var; 
+ 
+    class TConstIterator { 
+        using TVecIter = typename TIntervalVec<T>::const_iterator; 
+        using TMapIter = typename TIntervalMap<T>::const_iterator; 
+        using TValue = std::pair<T, T>; 
+ 
+        std::variant<TVecIter, TMapIter> Iter; 
+ 
+    public: 
+        TConstIterator() {} 
+ 
+        explicit TConstIterator(TVecIter vecIter) 
+            : Iter(vecIter) 
+        {} 
+ 
+        explicit TConstIterator(TMapIter mapIter) 
+            : Iter(mapIter) 
+        {} 
+ 
+        TConstIterator(const TConstIterator&) = default; 
+        TConstIterator& operator=(const TConstIterator& other) = default; 
+ 
+        TValue operator*() const { 
+            return std::visit([](auto& iter) -> TValue { return *iter; }, Iter); 
+        } 
+ 
+        TConstIterator& operator++() { 
+            std::visit([](auto& iter) { iter++; }, Iter); 
+            return *this; 
+        } 
+ 
+        friend bool operator==(const TConstIterator& x, const TConstIterator& y) { 
+            return x.Iter == y.Iter; 
+        } 
+ 
+        friend bool operator!=(const TConstIterator& x, const TConstIterator& y) { 
+            return !(x == y); 
+        } 
+    }; 
+ 
+    using const_iterator = TConstIterator; 
+ 
+    TIntervalSet() = default; 
+    TIntervalSet(const TIntervalSet&) = default; 
+    TIntervalSet(TIntervalSet&&) = default; 
+ 
+    TIntervalSet(T begin, T end) 
+        : Var(std::in_place_type<TVec>, begin, end) 
+    {} 
+ 
+    TIntervalSet(const TIntervalVec<T>& vec) : Var(vec) {} 
+    TIntervalSet(TIntervalVec<T>&& vec) : Var(std::move(vec)) {} 
+    TIntervalSet(const TIntervalMap<T>& map) : Var(map) {} 
+    TIntervalSet(TIntervalMap<T>&& map) : Var(std::move(map)) {} 
+ 
+    TIntervalSet& operator=(const TIntervalSet&) = default; 
+    TIntervalSet& operator=(TIntervalSet&&) = default; 
+ 
+    TIntervalSet& operator=(const TIntervalVec<T>& vec) { 
+        Var = vec; 
+        return *this; 
+    } 
+ 
+    TIntervalSet& operator=(TIntervalVec<T>&& vec) { 
+        Var = std::move(vec); 
+        return *this; 
+    } 
+ 
+    TIntervalSet& operator=(const TIntervalMap<T>& map) { 
+        Var = map; 
+        return *this; 
+    } 
+ 
+    TIntervalSet& operator=(TIntervalMap<T>&& map) { 
+        Var = std::move(map); 
+        return *this; 
+    } 
+ 
+    TConstIterator begin() const { 
+        return std::visit([](auto& var) -> TConstIterator { return TConstIterator(var.EndForBegin.begin()); }, Var); 
+    } 
+ 
+    TConstIterator end() const { 
+        return std::visit([](auto& var) -> TConstIterator { return TConstIterator(var.EndForBegin.end()); }, Var); 
+    } 
+ 
+    bool IsVec() const { 
+        return Var.index() == 0; 
+    } 
+ 
+    template <class Y> 
+    void Add(const Y& y) { 
+       *this |= y; 
+    } 
+ 
+    void Add(T begin, T end) { 
+        *this |= TIntervalVec<T>(begin, end); 
+    } 
+ 
+    void Clear() { 
+        std::visit([this](auto&& var) { 
+            if constexpr (std::is_same_v<std::decay_t<decltype(var)>, TVec>) { 
+                var.Clear(); // just clear vector (do not reset storage) 
+            } else { 
+                Var = TVec(); // use empty vector instead of map 
+            } 
+        }, Var); 
+    } 
+ 
+    void Assign(T begin, T end) { 
+        std::visit(overloaded { 
+            [=](TVec& vec) { 
+                vec.Assign(begin, end); // just clear vector (do not reset storage) 
+            }, 
+            [=](TMap&) { 
+                Var = TVec(begin, end); // use vector instead of map 
+            } 
+        }, Var); 
+    } 
+ 
+    bool IsEmpty() const { 
+        return std::visit([](auto& var) -> bool { return var.IsEmpty(); }, Var); 
+    } 
+ 
+    template <class Y> 
+    bool IsSubsetOf(const Y& y) const { 
+        return std::visit([&y](auto& var) -> bool { return var.IsSubsetOf(y); }, Var); 
+    } 
+ 
+    bool IsSubsetOf(const TIntervalSet& y) const { 
         return std::visit([this](auto& var) -> bool { return this->IsSubsetOf(var); }, y.Var);
-    }
-
-    template <class Y>
-    void Subtract(const Y& y) {
-        *this -= y;
-    }
-
-    void Subtract(T begin, T end) {
-        *this -= TIntervalVec<T>(begin, end);
-    }
-
-    TString ToString() const {
-        return std::visit([](auto& var) -> TString { return var.ToString(); }, Var);
-    }
-
-    void Verify() const {
-        std::visit([](auto& var) { var.Verify(); }, Var);
-    }
-
-    size_t Size() const {
-        return std::visit([](auto& var) -> size_t { return var.Size(); }, Var);
-    }
-
-    template <class Y>
-    friend bool operator ==(const TIntervalSet& x, const Y& y) {
-        return std::visit([&y](auto& var) -> bool { return var == y; }, x.Var);
-    }
-
-    template <class X>
-    friend bool operator ==(const X& x, const TIntervalSet& y) {
-        return std::visit([&x](auto& var) -> bool { return x == var; }, y.Var);
-    }
-
-    friend bool operator ==(const TIntervalSet& x, const TIntervalSet& y) {
-        return std::visit([&x](auto& var) -> bool { return x == var; }, y.Var);
-    }
-
-    explicit operator bool() const {
-        return !IsEmpty();
-    }
-
-    template <class Y>
-    TIntervalSet operator |(const Y& y) const {
-        return std::visit([&y](auto& var) { return TIntervalSet(var | y); } , Var);
-    }
-
-    TIntervalSet operator |(const TIntervalSet& y) const {
-        return std::visit([this](auto&& var) { return TIntervalSet(*this | var); }, y.Var);
-    }
-
-    template <class Y>
-    TIntervalSet& operator |=(const Y& y) {
-        std::visit(overloaded {
-            [this, &y](TVec& vec) {
-                vec |= y;
-                if (vec.Size() > ThresholdSize) {
-                    Mapify(vec);
-                }
-            },
-            [&y](TMap& map) {
-                map |= y;
-            }
-        }, Var);
-        return *this;
-    }
-
-    TIntervalSet& operator |=(const TIntervalSet& y) {
-        return std::visit([this](auto& var) -> TIntervalSet& { return *this |= var; }, y.Var);
-    }
-
-    template <class Y>
-    TIntervalSet operator &(const Y& y) const {
-        return std::visit([&y](auto& var) { return TIntervalSet(var & y); }, Var);
-    }
-
-    TIntervalSet operator &(const TIntervalSet& y) const {
-        return std::visit([this](auto& var) -> TIntervalSet { return *this & var; }, y.Var);
-    }
-
-    template <class Y>
-    TIntervalSet& operator &=(const Y& y) {
-        std::visit(overloaded {
-            [this, &y](TVec& vec) {
-                vec &= y;
-                if (vec.Size() > ThresholdSize) {
-                    Mapify(vec);
-                }
-            },
-            [&y](TMap& map) {
-                map &= y;
-            }
-        }, Var);
-        return *this;
-    }
-
-    TIntervalSet& operator &=(const TIntervalSet& y) {
-        return std::visit([this](auto& var) -> TIntervalSet& { return *this &= var; }, y.Var);
-    }
-
-    template <class Y>
-    TIntervalSet operator -(const Y& y) const {
-        return std::visit([&y](auto& var) { return TIntervalSet(var - y); }, Var);
-    }
-
-    TIntervalSet operator -(const TIntervalSet& y) const {
-        return std::visit([this](auto& var) -> TIntervalSet { return *this - var; }, y.Var);
-    }
-
-    template <class Y>
-    TIntervalSet& operator -=(const Y& y) {
-        std::visit(overloaded {
-            [this, &y](TVec& vec) {
-                vec -= y;
-                if (vec.Size() > ThresholdSize) {
-                    Mapify(vec);
-                }
-            },
-            [&y](TMap& map) {
-                map -= y;
-            }
-        }, Var);
-        return *this;
-    }
-
-    TIntervalSet& operator -=(const TIntervalSet& y) {
-        return std::visit([this](auto& var) -> TIntervalSet& { return *this -= var; }, y.Var);
-    }
-
-private:
-    void Mapify(TVec& vec) {
-        TMap map;
-        // move data from vec into map
-        for (auto [l, r] : vec.EndForBegin) {
-            map.EndForBegin.emplace_hint(map.EndForBegin.end(), l, r);
-        }
-        Var = std::move(map);
-    }
-
-};
-
+    } 
+ 
+    template <class Y> 
+    void Subtract(const Y& y) { 
+        *this -= y; 
+    } 
+ 
+    void Subtract(T begin, T end) { 
+        *this -= TIntervalVec<T>(begin, end); 
+    } 
+ 
+    TString ToString() const { 
+        return std::visit([](auto& var) -> TString { return var.ToString(); }, Var); 
+    } 
+ 
+    void Verify() const { 
+        std::visit([](auto& var) { var.Verify(); }, Var); 
+    } 
+ 
+    size_t Size() const { 
+        return std::visit([](auto& var) -> size_t { return var.Size(); }, Var); 
+    } 
+ 
+    template <class Y> 
+    friend bool operator ==(const TIntervalSet& x, const Y& y) { 
+        return std::visit([&y](auto& var) -> bool { return var == y; }, x.Var); 
+    } 
+ 
+    template <class X> 
+    friend bool operator ==(const X& x, const TIntervalSet& y) { 
+        return std::visit([&x](auto& var) -> bool { return x == var; }, y.Var); 
+    } 
+ 
+    friend bool operator ==(const TIntervalSet& x, const TIntervalSet& y) { 
+        return std::visit([&x](auto& var) -> bool { return x == var; }, y.Var); 
+    } 
+ 
+    explicit operator bool() const { 
+        return !IsEmpty(); 
+    } 
+ 
+    template <class Y> 
+    TIntervalSet operator |(const Y& y) const { 
+        return std::visit([&y](auto& var) { return TIntervalSet(var | y); } , Var); 
+    } 
+ 
+    TIntervalSet operator |(const TIntervalSet& y) const { 
+        return std::visit([this](auto&& var) { return TIntervalSet(*this | var); }, y.Var); 
+    } 
+ 
+    template <class Y> 
+    TIntervalSet& operator |=(const Y& y) { 
+        std::visit(overloaded { 
+            [this, &y](TVec& vec) { 
+                vec |= y; 
+                if (vec.Size() > ThresholdSize) { 
+                    Mapify(vec); 
+                } 
+            }, 
+            [&y](TMap& map) { 
+                map |= y; 
+            } 
+        }, Var); 
+        return *this; 
+    } 
+ 
+    TIntervalSet& operator |=(const TIntervalSet& y) { 
+        return std::visit([this](auto& var) -> TIntervalSet& { return *this |= var; }, y.Var); 
+    } 
+ 
+    template <class Y> 
+    TIntervalSet operator &(const Y& y) const { 
+        return std::visit([&y](auto& var) { return TIntervalSet(var & y); }, Var); 
+    } 
+ 
+    TIntervalSet operator &(const TIntervalSet& y) const { 
+        return std::visit([this](auto& var) -> TIntervalSet { return *this & var; }, y.Var); 
+    } 
+ 
+    template <class Y> 
+    TIntervalSet& operator &=(const Y& y) { 
+        std::visit(overloaded { 
+            [this, &y](TVec& vec) { 
+                vec &= y; 
+                if (vec.Size() > ThresholdSize) { 
+                    Mapify(vec); 
+                } 
+            }, 
+            [&y](TMap& map) { 
+                map &= y; 
+            } 
+        }, Var); 
+        return *this; 
+    } 
+ 
+    TIntervalSet& operator &=(const TIntervalSet& y) { 
+        return std::visit([this](auto& var) -> TIntervalSet& { return *this &= var; }, y.Var); 
+    } 
+ 
+    template <class Y> 
+    TIntervalSet operator -(const Y& y) const { 
+        return std::visit([&y](auto& var) { return TIntervalSet(var - y); }, Var); 
+    } 
+ 
+    TIntervalSet operator -(const TIntervalSet& y) const { 
+        return std::visit([this](auto& var) -> TIntervalSet { return *this - var; }, y.Var); 
+    } 
+ 
+    template <class Y> 
+    TIntervalSet& operator -=(const Y& y) { 
+        std::visit(overloaded { 
+            [this, &y](TVec& vec) { 
+                vec -= y; 
+                if (vec.Size() > ThresholdSize) { 
+                    Mapify(vec); 
+                } 
+            }, 
+            [&y](TMap& map) { 
+                map -= y; 
+            } 
+        }, Var); 
+        return *this; 
+    } 
+ 
+    TIntervalSet& operator -=(const TIntervalSet& y) { 
+        return std::visit([this](auto& var) -> TIntervalSet& { return *this -= var; }, y.Var); 
+    } 
+ 
+private: 
+    void Mapify(TVec& vec) { 
+        TMap map; 
+        // move data from vec into map 
+        for (auto [l, r] : vec.EndForBegin) { 
+            map.EndForBegin.emplace_hint(map.EndForBegin.end(), l, r); 
+        } 
+        Var = std::move(map); 
+    } 
+ 
+}; 
+ 
 } // NKikimr
diff --git a/ydb/core/util/interval_set_ut.cpp b/ydb/core/util/interval_set_ut.cpp
index c1df7015fd..535ab61ee0 100644
--- a/ydb/core/util/interval_set_ut.cpp
+++ b/ydb/core/util/interval_set_ut.cpp
@@ -62,9 +62,9 @@ public:
         }
     }
 
-    template <class TIntervals>
-    TIntervals ToIntervalSet() const {
-        TIntervals set;
+    template <class TIntervals> 
+    TIntervals ToIntervalSet() const { 
+        TIntervals set; 
         i64 prev = Max<i64>();
         for (i64 i = 0; i <= 8; ++i) {
             if (Bits & (1 << i)) {
@@ -133,9 +133,9 @@ public:
 
 };
 
-template <class TIntervals>
-TIntervals MakeIntervalSet(ui64 n, ui32 len) {
-    TIntervals res;
+template <class TIntervals> 
+TIntervals MakeIntervalSet(ui64 n, ui32 len) { 
+    TIntervals res; 
     for (ui32 i = 0; i < len; ) {
         if (n >> i & 1) {
             const ui32 begin = i;
@@ -150,35 +150,35 @@ TIntervals MakeIntervalSet(ui64 n, ui32 len) {
     return res;
 }
 
-#define MY_UNIT_TEST(N)      \
-    template <class TIntervals, const char* TestName>       \
-    struct TTestCase##N : public TCurrentTestCase {         \
-        TTestCase##N() {                                    \
-            Name_ = TestName;                               \
-            ForceFork_ = false;                             \
-        }                                                   \
-        static THolder<NUnitTest::TBaseTestCase> Create() { \
-            return ::MakeHolder<TTestCase##N>();            \
-        }                                                   \
-        void Execute_(NUnitTest::TTestContext&) override;   \
-    };                                                      \
-    struct TTestRegistration##N {                           \
-        TTestRegistration##N() {                            \
-            static const char NameMap[] = "IntervalMap" #N; \
-            static const char NameVec[] = "IntervalVec" #N; \
-            static const char NameSet[] = "IntervalSet" #N; \
-            TCurrentTest::AddTest(TTestCase##N<TIntervalMap<i32>, NameMap>::Create); \
-            TCurrentTest::AddTest(TTestCase##N<TIntervalVec<i32>, NameVec>::Create); \
-            TCurrentTest::AddTest(TTestCase##N<TIntervalSet<i32, 2>, NameSet>::Create); \
-        }                                                   \
-    };                                                      \
-    static TTestRegistration##N testRegistration##N;        \
-    template <class TIntervals, const char* type_name>      \
-    void TTestCase##N<TIntervals, type_name>::Execute_(NUnitTest::TTestContext& ut_context Y_DECLARE_UNUSED)
-
+#define MY_UNIT_TEST(N)      \ 
+    template <class TIntervals, const char* TestName>       \ 
+    struct TTestCase##N : public TCurrentTestCase {         \ 
+        TTestCase##N() {                                    \ 
+            Name_ = TestName;                               \ 
+            ForceFork_ = false;                             \ 
+        }                                                   \ 
+        static THolder<NUnitTest::TBaseTestCase> Create() { \ 
+            return ::MakeHolder<TTestCase##N>();            \ 
+        }                                                   \ 
+        void Execute_(NUnitTest::TTestContext&) override;   \ 
+    };                                                      \ 
+    struct TTestRegistration##N {                           \ 
+        TTestRegistration##N() {                            \ 
+            static const char NameMap[] = "IntervalMap" #N; \ 
+            static const char NameVec[] = "IntervalVec" #N; \ 
+            static const char NameSet[] = "IntervalSet" #N; \ 
+            TCurrentTest::AddTest(TTestCase##N<TIntervalMap<i32>, NameMap>::Create); \ 
+            TCurrentTest::AddTest(TTestCase##N<TIntervalVec<i32>, NameVec>::Create); \ 
+            TCurrentTest::AddTest(TTestCase##N<TIntervalSet<i32, 2>, NameSet>::Create); \ 
+        }                                                   \ 
+    };                                                      \ 
+    static TTestRegistration##N testRegistration##N;        \ 
+    template <class TIntervals, const char* type_name>      \ 
+    void TTestCase##N<TIntervals, type_name>::Execute_(NUnitTest::TTestContext& ut_context Y_DECLARE_UNUSED) 
+ 
 Y_UNIT_TEST_SUITE(TIntervalSetTest) {
-    MY_UNIT_TEST(TestEmpty) {
-        TIntervals a;
+    MY_UNIT_TEST(TestEmpty) { 
+        TIntervals a; 
         UNIT_ASSERT_EQUAL(a.IsEmpty(), true);
         a.Add(0, 1);
         UNIT_ASSERT_EQUAL(a.IsEmpty(), false);
@@ -186,23 +186,23 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         UNIT_ASSERT_EQUAL(a.IsEmpty(), true);
     }
 
-    MY_UNIT_TEST(TestSpecificAdd) {
-        TIntervals a;
+    MY_UNIT_TEST(TestSpecificAdd) { 
+        TIntervals a; 
         a.Add(55, 56);
         a.Add(50, 80);
-        TIntervals b(50, 80);
+        TIntervals b(50, 80); 
         UNIT_ASSERT_EQUAL_C(b.IsSubsetOf(a), true, "a# " << a.ToString() << " b# " << b.ToString());
         UNIT_ASSERT_EQUAL_C(a.IsSubsetOf(b), true, "a# " << a.ToString() << " b# " << b.ToString());
         b.Subtract(a);
         UNIT_ASSERT_EQUAL_C(b.IsEmpty(), true, "a# " << a.ToString() << " b# " << b.ToString());
     }
 
-    MY_UNIT_TEST(TestAdd) {
-        TIntervals a(0, 10);
+    MY_UNIT_TEST(TestAdd) { 
+        TIntervals a(0, 10); 
         a.Add(20, 22);
         a.Add(44, 80);
         a.Add(90, 100);
-        TVector<TIntervals> sets;
+        TVector<TIntervals> sets; 
         sets.emplace_back(0, 10);
         sets.emplace_back(20, 22);
         sets.emplace_back(44, 50);
@@ -221,7 +221,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         while (counters.back() < sets.size()) {
             ui64 added = 0;
             //Cerr << "set" << Endl;
-            TIntervals b;
+            TIntervals b; 
             for (ui32 i = 0; i < counters.size(); ++i) {
                 added |= (1ull << counters[i]);
                 b.Add(sets[counters[i]]);
@@ -253,11 +253,11 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
     }
 
-    MY_UNIT_TEST(TestAddSubtract) {
-        TIntervals a;
+    MY_UNIT_TEST(TestAddSubtract) { 
+        TIntervals a; 
         a.Add(4, 5);   // [4, 5)
         {
-            TIntervals b(4, 5);
+            TIntervals b(4, 5); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), true);
             b.Subtract(a);
@@ -265,14 +265,14 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Add(1, 2);   // [1, 2) U [4, 5)
         {
-            TIntervals b(1, 2);
+            TIntervals b(1, 2); 
             UNIT_ASSERT_EQUAL_C(b.IsSubsetOf(a), true, "a# " << a.ToString() << " b# " << b.ToString());
             UNIT_ASSERT_EQUAL_C(a.IsSubsetOf(b), false, "a# " << a.ToString() << " b# " << b.ToString());
             b.Subtract(a);
             UNIT_ASSERT_EQUAL(b.IsEmpty(), true);
         }
         {
-            TIntervals b(4, 5);
+            TIntervals b(4, 5); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), false);
             b.Subtract(a);
@@ -280,7 +280,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Add(2, 4);   // [1, 5)
         {
-            TIntervals b(1, 5);
+            TIntervals b(1, 5); 
             UNIT_ASSERT_EQUAL_C(b.IsSubsetOf(a), true, "a# " << a.ToString() << " b# " << b.ToString());
             UNIT_ASSERT_EQUAL_C(a.IsSubsetOf(b), true, "a# " << a.ToString() << " b# " << b.ToString());
             b.Subtract(a);
@@ -288,7 +288,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Add(0, 1);   // [0, 5)
         {
-            TIntervals b(0, 5);
+            TIntervals b(0, 5); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), true);
             b.Subtract(a);
@@ -296,7 +296,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Add(5, 6);   // [0, 6)
         {
-            TIntervals b(0, 6);
+            TIntervals b(0, 6); 
             UNIT_ASSERT_EQUAL_C(b.IsSubsetOf(a), true, "a# " << a.ToString() << " b# " << b.ToString());
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), true);
             b.Subtract(a);
@@ -304,7 +304,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Add(-1, 1);  // [-1, 6)
         {
-            TIntervals b(-1, 6);
+            TIntervals b(-1, 6); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), true);
             b.Subtract(a);
@@ -312,7 +312,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Add(5, 7);   // [-1, 7)
         {
-            TIntervals b(-1, 7);
+            TIntervals b(-1, 7); 
             UNIT_ASSERT_EQUAL_C(b.IsSubsetOf(a), true, "a# " << a.ToString() << " b# " << b.ToString());
             UNIT_ASSERT_EQUAL_C(a.IsSubsetOf(b), true, "a# " << a.ToString() << " b# " << b.ToString());
             b.Subtract(a);
@@ -320,7 +320,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Add(-1, 7);  // [-1, 7)
         {
-            TIntervals b(-1, 7);
+            TIntervals b(-1, 7); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), true);
             b.Subtract(a);
@@ -328,7 +328,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Add(-1, 1);  // [-1, 7)
         {
-            TIntervals b(-1, 7);
+            TIntervals b(-1, 7); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), true);
             b.Subtract(a);
@@ -336,7 +336,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Add(1, 7);   // [-1, 7)
         {
-            TIntervals b(-1, 7);
+            TIntervals b(-1, 7); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), true);
             b.Subtract(a);
@@ -344,7 +344,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(-3, -2); // [-1, 7)
         {
-            TIntervals b(-1, 7);
+            TIntervals b(-1, 7); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), true);
             b.Subtract(a);
@@ -352,7 +352,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(-3, -1); // [-1, 7)
         {
-            TIntervals b(-1, 7);
+            TIntervals b(-1, 7); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), true);
             b.Subtract(a);
@@ -360,7 +360,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(-3, 0);  // [0, 7)
         {
-            TIntervals b(0, 7);
+            TIntervals b(0, 7); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), true);
             b.Subtract(a);
@@ -368,7 +368,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(8, 9);   // [0, 7)
         {
-            TIntervals b(0, 7);
+            TIntervals b(0, 7); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), true);
             b.Subtract(a);
@@ -376,7 +376,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(7, 9);   // [0, 7)
         {
-            TIntervals b(0, 7);
+            TIntervals b(0, 7); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), true);
             b.Subtract(a);
@@ -384,7 +384,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(6, 9);   // [0, 6)
         {
-            TIntervals b(0, 6);
+            TIntervals b(0, 6); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), true);
             b.Subtract(a);
@@ -392,7 +392,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(0, 1);   // [1, 6)
         {
-            TIntervals b(1, 6);
+            TIntervals b(1, 6); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), true);
             b.Subtract(a);
@@ -400,7 +400,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(5, 6);   // [1, 5)
         {
-            TIntervals b(1, 5);
+            TIntervals b(1, 5); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), true);
             b.Subtract(a);
@@ -408,14 +408,14 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(2, 3);   // [1, 2) U [3, 5)
         {
-            TIntervals b(1, 2);
+            TIntervals b(1, 2); 
             UNIT_ASSERT_EQUAL(b.IsSubsetOf(a), true);
             UNIT_ASSERT_EQUAL(a.IsSubsetOf(b), false);
             b.Subtract(a);
             UNIT_ASSERT_EQUAL(b.IsEmpty(), true);
         }
         {
-            TIntervals b(3, 5);
+            TIntervals b(3, 5); 
             UNIT_ASSERT_EQUAL_C(b.IsSubsetOf(a), true, "a# " << a.ToString() << " b# " << b.ToString());
             UNIT_ASSERT_EQUAL_C(a.IsSubsetOf(b), false, "a# " << a.ToString() << " b# " << b.ToString());
             b.Subtract(a);
@@ -425,18 +425,18 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         UNIT_ASSERT_EQUAL(a.IsEmpty(), true);
     }
 
-    MY_UNIT_TEST(TestSubtract) {
-        TIntervals a(0, 100);  // [0, 100)
+    MY_UNIT_TEST(TestSubtract) { 
+        TIntervals a(0, 100);  // [0, 100) 
         a.Subtract(10, 20);      // [0, 10) U [20, 100)
         {
-            TIntervals b(0, 10);
+            TIntervals b(0, 10); 
             b.Add(20, 100);
             UNIT_ASSERT_EQUAL_C(b.IsSubsetOf(a), true, "a# " << a.ToString() << " b# " << b.ToString());
             UNIT_ASSERT_EQUAL_C(a.IsSubsetOf(b), true, "a# " << a.ToString() << " b# " << b.ToString());
         }
         a.Subtract(80, 90);      // [0, 10) U [20, 80) U [90, 100)
         {
-            TIntervals b(0, 10);
+            TIntervals b(0, 10); 
             b.Add(20, 80);
             b.Add(90, 100);
             UNIT_ASSERT_EQUAL_C(b.IsSubsetOf(a), true, "a# " << a.ToString() << " b# " << b.ToString());
@@ -444,7 +444,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(30, 40);      // [0, 10) U [20, 30) U [40, 80) U [90, 100)
         {
-            TIntervals b(0, 10);
+            TIntervals b(0, 10); 
             b.Add(20, 30);
             b.Add(40, 80);
             b.Add(90, 100);
@@ -453,7 +453,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(29, 41);      // [0, 10) U [20, 29) U [41, 80) U [90, 100)
         {
-            TIntervals b(0, 10);
+            TIntervals b(0, 10); 
             b.Add(20, 29);
             b.Add(41, 80);
             b.Add(90, 100);
@@ -462,7 +462,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(28, 41);      // [0, 10) U [20, 28) U [41, 80) U [90, 100)
         {
-            TIntervals b(0, 10);
+            TIntervals b(0, 10); 
             b.Add(20, 28);
             b.Add(41, 80);
             b.Add(90, 100);
@@ -471,7 +471,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(27, 40);      // [0, 10) U [20, 27) U [41, 80) U [90, 100)
         {
-            TIntervals b(0, 10);
+            TIntervals b(0, 10); 
             b.Add(20, 27);
             b.Add(41, 80);
             b.Add(90, 100);
@@ -480,7 +480,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(27, 42);      // [0, 10) U [20, 27) U [42, 80) U [90, 100)
         {
-            TIntervals b(0, 10);
+            TIntervals b(0, 10); 
             b.Add(20, 27);
             b.Add(42, 80);
             b.Add(90, 100);
@@ -489,7 +489,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(28, 43);      // [0, 10) U [20, 27) U [43, 80) U [90, 100)
         {
-            TIntervals b(0, 10);
+            TIntervals b(0, 10); 
             b.Add(20, 27);
             b.Add(43, 80);
             b.Add(90, 100);
@@ -498,7 +498,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(23, 24);      // [0, 10) U [20, 23] U [24, 27) U [43, 80) U [90, 100)
         {
-            TIntervals b(0, 10);
+            TIntervals b(0, 10); 
             b.Add(20, 23);
             b.Add(24, 27);
             b.Add(43, 80);
@@ -508,7 +508,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(22, 44);      // [0, 10) U [20, 22] U [44, 80) U [90, 100)
         {
-            TIntervals b(0, 10);
+            TIntervals b(0, 10); 
             b.Add(20, 22);
             b.Add(44, 80);
             b.Add(90, 100);
@@ -517,7 +517,7 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
         a.Subtract(22, 44);      // [0, 10) U [20, 22] U [44, 80) U [90, 100)
         {
-            TIntervals b(0, 10);
+            TIntervals b(0, 10); 
             b.Add(20, 22);
             b.Add(44, 80);
             b.Add(90, 100);
@@ -527,16 +527,16 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
 
     }
 
-    MY_UNIT_TEST(TestSubtractAgainstReference) {
+    MY_UNIT_TEST(TestSubtractAgainstReference) { 
         for (ui64 aBits = 0; aBits < 128; ++aBits) {
             for (ui64 bBits = 0; bBits < 128; ++bBits) {
                 TReferenceSet aRef(aBits);
                 TReferenceSet bRef(bBits);
-                TIntervals a = aRef.ToIntervalSet<TIntervals>();
-                TIntervals b = bRef.ToIntervalSet<TIntervals>();
+                TIntervals a = aRef.ToIntervalSet<TIntervals>(); 
+                TIntervals b = bRef.ToIntervalSet<TIntervals>(); 
                 aRef.Subtract(bRef);
                 a.Subtract(b);
-                TIntervals aa = aRef.ToIntervalSet<TIntervals>();
+                TIntervals aa = aRef.ToIntervalSet<TIntervals>(); 
                 if (!(a == aa)) {
                     TReferenceSet ia(aBits);
                     TReferenceSet ib(bBits);
@@ -548,16 +548,16 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
     }
 
-    MY_UNIT_TEST(TestAddAgainstReference) {
+    MY_UNIT_TEST(TestAddAgainstReference) { 
         for (ui64 aBits = 0; aBits < 128; ++aBits) {
             for (ui64 bBits = 0; bBits < 128; ++bBits) {
                 TReferenceSet aRef(aBits);
                 TReferenceSet bRef(bBits);
-                TIntervals a = aRef.ToIntervalSet<TIntervals>();
-                TIntervals b = bRef.ToIntervalSet<TIntervals>();
+                TIntervals a = aRef.ToIntervalSet<TIntervals>(); 
+                TIntervals b = bRef.ToIntervalSet<TIntervals>(); 
                 aRef.Add(bRef);
                 a.Add(b);
-                TIntervals aa = aRef.ToIntervalSet<TIntervals>();
+                TIntervals aa = aRef.ToIntervalSet<TIntervals>(); 
                 if (!(a == aa)) {
                     TReferenceSet ia(aBits);
                     TReferenceSet ib(bBits);
@@ -569,13 +569,13 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
     }
 
-    MY_UNIT_TEST(TestIsSubsetOfAgainstReference) {
+    MY_UNIT_TEST(TestIsSubsetOfAgainstReference) { 
         for (ui64 aBits = 0; aBits < 128; ++aBits) {
             for (ui64 bBits = 0; bBits < 128; ++bBits) {
                 TReferenceSet aRef(aBits);
                 TReferenceSet bRef(bBits);
-                TIntervals a = aRef.ToIntervalSet<TIntervals>();
-                TIntervals b = bRef.ToIntervalSet<TIntervals>();
+                TIntervals a = aRef.ToIntervalSet<TIntervals>(); 
+                TIntervals b = bRef.ToIntervalSet<TIntervals>(); 
                 bool isSubsetRef = aRef.IsSubsetOf(bRef);
                 bool isSubset = a.IsSubsetOf(b);
                 if (isSubset == isSubsetRef) {
@@ -587,10 +587,10 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
     }
 
-    MY_UNIT_TEST(TestToStringAgainstReference) {
+    MY_UNIT_TEST(TestToStringAgainstReference) { 
         for (ui64 aBits = 0; aBits < 128; ++aBits) {
             TReferenceSet aRef(aBits);
-            TIntervals a = aRef.ToIntervalSet<TIntervals>();
+            TIntervals a = aRef.ToIntervalSet<TIntervals>(); 
             TString strRef = aRef.ToString();
             TString str = a.ToString();
             if (strRef == str) {
@@ -600,142 +600,142 @@ Y_UNIT_TEST_SUITE(TIntervalSetTest) {
         }
     }
 
-    MY_UNIT_TEST(Union) {
+    MY_UNIT_TEST(Union) { 
         ui32 len = 8;
         ui64 n = 1 << len;
         for (ui64 i = 0; i < n; ++i) {
             for (ui64 j = 0; j < n; ++j) {
-                const TIntervals a = MakeIntervalSet<TIntervals>(i, len);
-                const TIntervals b = MakeIntervalSet<TIntervals>(j, len);
-                const TIntervals res = a | b;
-                const TIntervals reference = MakeIntervalSet<TIntervals>(i | j, len);
+                const TIntervals a = MakeIntervalSet<TIntervals>(i, len); 
+                const TIntervals b = MakeIntervalSet<TIntervals>(j, len); 
+                const TIntervals res = a | b; 
+                const TIntervals reference = MakeIntervalSet<TIntervals>(i | j, len); 
                 UNIT_ASSERT_EQUAL_C(res, reference, "a# " << a.ToString() << " b# " << b.ToString() << " res# "
                     << res.ToString() << " reference# " << reference.ToString());
             }
         }
     }
 
-    MY_UNIT_TEST(UnionInplace) {
+    MY_UNIT_TEST(UnionInplace) { 
         ui32 len = 8;
         ui64 n = 1 << len;
         for (ui64 i = 0; i < n; ++i) {
             for (ui64 j = 0; j < n; ++j) {
-                const TIntervals a = MakeIntervalSet<TIntervals>(i, len);
-                const TIntervals b = MakeIntervalSet<TIntervals>(j, len);
-                TIntervals res = a;
+                const TIntervals a = MakeIntervalSet<TIntervals>(i, len); 
+                const TIntervals b = MakeIntervalSet<TIntervals>(j, len); 
+                TIntervals res = a; 
                 res |= b;
-                const TIntervals reference = MakeIntervalSet<TIntervals>(i | j, len);
+                const TIntervals reference = MakeIntervalSet<TIntervals>(i | j, len); 
                 UNIT_ASSERT_EQUAL_C(res, reference, "a# " << a.ToString() << " b# " << b.ToString() << " res# "
                     << res.ToString() << " reference# " << reference.ToString());
             }
         }
     }
 
-    MY_UNIT_TEST(UnionInplaceSelf) {
+    MY_UNIT_TEST(UnionInplaceSelf) { 
         ui32 len = 8;
         ui64 n = 1 << len;
         for (ui64 i = 0; i < n; ++i) {
-            TIntervals res = MakeIntervalSet<TIntervals>(i, len);
-            TIntervals *other = &res;
+            TIntervals res = MakeIntervalSet<TIntervals>(i, len); 
+            TIntervals *other = &res; 
             res |= *other;
-            const TIntervals reference = MakeIntervalSet<TIntervals>(i, len);
+            const TIntervals reference = MakeIntervalSet<TIntervals>(i, len); 
             UNIT_ASSERT_EQUAL(res, reference);
         }
     }
 
-    MY_UNIT_TEST(Intersection) {
+    MY_UNIT_TEST(Intersection) { 
         ui32 len = 8;
         ui64 n = 1 << len;
         for (ui64 i = 0; i < n; ++i) {
             for (ui64 j = 0; j < n; ++j) {
-                const TIntervals a = MakeIntervalSet<TIntervals>(i, len);
-                const TIntervals b = MakeIntervalSet<TIntervals>(j, len);
-                const TIntervals res = a & b;
-                const TIntervals reference = MakeIntervalSet<TIntervals>(i & j, len);
+                const TIntervals a = MakeIntervalSet<TIntervals>(i, len); 
+                const TIntervals b = MakeIntervalSet<TIntervals>(j, len); 
+                const TIntervals res = a & b; 
+                const TIntervals reference = MakeIntervalSet<TIntervals>(i & j, len); 
                 UNIT_ASSERT_EQUAL_C(res, reference, "a# " << a.ToString() << " b# " << b.ToString() << " res# "
                     << res.ToString() << " reference# " << reference.ToString());
             }
         }
     }
 
-    MY_UNIT_TEST(IntersectionInplace) {
+    MY_UNIT_TEST(IntersectionInplace) { 
         ui32 len = 8;
         ui64 n = 1 << len;
         for (ui64 i = 0; i < n; ++i) {
             for (ui64 j = 0; j < n; ++j) {
-                const TIntervals a = MakeIntervalSet<TIntervals>(i, len);
-                const TIntervals b = MakeIntervalSet<TIntervals>(j, len);
-                TIntervals res = a;
+                const TIntervals a = MakeIntervalSet<TIntervals>(i, len); 
+                const TIntervals b = MakeIntervalSet<TIntervals>(j, len); 
+                TIntervals res = a; 
                 res &= b;
-                const TIntervals reference = MakeIntervalSet<TIntervals>(i & j, len);
+                const TIntervals reference = MakeIntervalSet<TIntervals>(i & j, len); 
                 UNIT_ASSERT_EQUAL_C(res, reference, "a# " << a.ToString() << " b# " << b.ToString() << " res# "
                     << res.ToString() << " reference# " << reference.ToString());
             }
         }
     }
 
-    MY_UNIT_TEST(IntersectionInplaceSelf) {
+    MY_UNIT_TEST(IntersectionInplaceSelf) { 
         ui32 len = 8;
         ui64 n = 1 << len;
         for (ui64 i = 0; i < n; ++i) {
-            TIntervals res = MakeIntervalSet<TIntervals>(i, len);
-            TIntervals *other = &res;
+            TIntervals res = MakeIntervalSet<TIntervals>(i, len); 
+            TIntervals *other = &res; 
             res &= *other;
-            const TIntervals reference = MakeIntervalSet<TIntervals>(i, len);
+            const TIntervals reference = MakeIntervalSet<TIntervals>(i, len); 
             UNIT_ASSERT_EQUAL(res, reference);
         }
     }
 
-    MY_UNIT_TEST(Difference) {
+    MY_UNIT_TEST(Difference) { 
         ui32 len = 8;
         ui64 n = 1 << len;
         for (ui64 i = 0; i < n; ++i) {
             for (ui64 j = 0; j < n; ++j) {
-                const TIntervals a = MakeIntervalSet<TIntervals>(i, len);
-                const TIntervals b = MakeIntervalSet<TIntervals>(j, len);
-                const TIntervals res = a - b;
-                const TIntervals reference = MakeIntervalSet<TIntervals>(i & ~j, len);
+                const TIntervals a = MakeIntervalSet<TIntervals>(i, len); 
+                const TIntervals b = MakeIntervalSet<TIntervals>(j, len); 
+                const TIntervals res = a - b; 
+                const TIntervals reference = MakeIntervalSet<TIntervals>(i & ~j, len); 
                 UNIT_ASSERT_EQUAL_C(res, reference, "a# " << a.ToString() << " b# " << b.ToString() << " res# "
                     << res.ToString() << " reference# " << reference.ToString());
             }
         }
     }
 
-    MY_UNIT_TEST(DifferenceInplaceSelf) {
+    MY_UNIT_TEST(DifferenceInplaceSelf) { 
         ui32 len = 8;
         ui64 n = 1 << len;
         for (ui64 i = 0; i < n; ++i) {
-            TIntervals res = MakeIntervalSet<TIntervals>(i, len);
-            TIntervals *other = &res;
+            TIntervals res = MakeIntervalSet<TIntervals>(i, len); 
+            TIntervals *other = &res; 
             res -= *other;
             UNIT_ASSERT(!res);
         }
     }
 
-    Y_UNIT_TEST(IntervalSetTestIterator) {
-        using TIntervals = TIntervalSet<i32>;
-        for (ui64 aBits = 0; aBits < 128; ++aBits) {
-            TReferenceSet aRef(aBits);
-            TIntervals a = aRef.ToIntervalSet<TIntervals>();
-            TString strRef = aRef.ToString();
-
-            TStringStream str;
-            str << "{";
-            for (auto it = a.begin(); it != a.end(); ++it) {
-                if (it != a.begin()) {
-                    str << " U ";
-                }
-                auto [begin, end] = *it;
-                str << "[" << begin << ", " << end << ")";
-            }
-            str << "}";
-
-            if (strRef == str.Str()) {
-                UNIT_ASSERT_EQUAL_C(strRef == str.Str(), true, "str# " << str.Str() << " strRef# " << strRef
-                        << " aBits# " << aBits);
-            }
-        }
-    }
+    Y_UNIT_TEST(IntervalSetTestIterator) { 
+        using TIntervals = TIntervalSet<i32>; 
+        for (ui64 aBits = 0; aBits < 128; ++aBits) { 
+            TReferenceSet aRef(aBits); 
+            TIntervals a = aRef.ToIntervalSet<TIntervals>(); 
+            TString strRef = aRef.ToString(); 
+ 
+            TStringStream str; 
+            str << "{"; 
+            for (auto it = a.begin(); it != a.end(); ++it) { 
+                if (it != a.begin()) { 
+                    str << " U "; 
+                } 
+                auto [begin, end] = *it; 
+                str << "[" << begin << ", " << end << ")"; 
+            } 
+            str << "}"; 
+ 
+            if (strRef == str.Str()) { 
+                UNIT_ASSERT_EQUAL_C(strRef == str.Str(), true, "str# " << str.Str() << " strRef# " << strRef 
+                        << " aBits# " << aBits); 
+            } 
+        } 
+    } 
 }
 
 } // NKikimr
diff --git a/ydb/core/util/testactorsys.cpp b/ydb/core/util/testactorsys.cpp
index 73d27bc9d9..8e709f65ea 100644
--- a/ydb/core/util/testactorsys.cpp
+++ b/ydb/core/util/testactorsys.cpp
@@ -19,23 +19,23 @@ public:
         , NodeId(nodeId)
     {}
 
-    ui32 GetReadyActivation(TWorkerContext& /*wctx*/, ui64 /*revolvingCounter*/) override {
+    ui32 GetReadyActivation(TWorkerContext& /*wctx*/, ui64 /*revolvingCounter*/) override { 
         Y_FAIL();
     }
 
-    void ReclaimMailbox(TMailboxType::EType /*mailboxType*/, ui32 /*hint*/, NActors::TWorkerId /*workerId*/, ui64 /*revolvingCounter*/) override {
+    void ReclaimMailbox(TMailboxType::EType /*mailboxType*/, ui32 /*hint*/, NActors::TWorkerId /*workerId*/, ui64 /*revolvingCounter*/) override { 
         Y_FAIL();
     }
 
-    void Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, NActors::TWorkerId /*workerId*/) override {
+    void Schedule(TInstant deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, NActors::TWorkerId /*workerId*/) override { 
         Context->Schedule(deadline, ev, cookie, NodeId);
     }
 
-    void Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, NActors::TWorkerId /*workerId*/) override {
+    void Schedule(TMonotonic deadline, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, NActors::TWorkerId /*workerId*/) override { 
         Context->Schedule(TInstant::FromValue(deadline.GetValue()), ev, cookie, NodeId);
     }
 
-    void Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, NActors::TWorkerId /*workerId*/) override {
+    void Schedule(TDuration delta, TAutoPtr<IEventHandle> ev, ISchedulerCookie* cookie, NActors::TWorkerId /*workerId*/) override { 
         Context->Schedule(delta, ev, cookie, NodeId);
     }
 
@@ -67,7 +67,7 @@ public:
         return Context->Register(actor, parentId, PoolId, hint, NodeId);
     }
 
-    void Prepare(TActorSystem* /*actorSystem*/, NSchedulerQueue::TReader** /*scheduleReaders*/, ui32* /*scheduleSz*/) override {
+    void Prepare(TActorSystem* /*actorSystem*/, NSchedulerQueue::TReader** /*scheduleReaders*/, ui32* /*scheduleSz*/) override { 
     }
 
     void Start() override {
diff --git a/ydb/core/util/testactorsys.h b/ydb/core/util/testactorsys.h
index ce6ad7be10..fcf448e548 100644
--- a/ydb/core/util/testactorsys.h
+++ b/ydb/core/util/testactorsys.h
@@ -36,7 +36,7 @@ class TTestActorSystem {
             CurrentMonotonicPtr = currentMonotonic;
         }
 
-        void PrepareSchedules(NSchedulerQueue::TReader **readers, ui32 scheduleReadersCount) override {
+        void PrepareSchedules(NSchedulerQueue::TReader **readers, ui32 scheduleReadersCount) override { 
             Readers = {readers, readers + scheduleReadersCount};
         }
 
diff --git a/ydb/core/util/time_series_vec.h b/ydb/core/util/time_series_vec.h
index e0753e06ee..588035990d 100644
--- a/ydb/core/util/time_series_vec.h
+++ b/ydb/core/util/time_series_vec.h
@@ -1,217 +1,217 @@
-#pragma once
-
-#include <util/datetime/base.h>
-#include <util/generic/vector.h>
-#include <util/generic/hash.h>
-#include <util/system/types.h>
-
-namespace NKikimr {
-
-template <class T, ui64 IntervalUs = 10'000> class TTimeSeriesMap;
-template <class T, ui64 IntervalUs = 10'000> class TTimeSeriesVec;
-
-// Unbounded and sparse variant of TTimeSeriesVec.
-template <class T, ui64 IntervalUs>
-class TTimeSeriesMap {
-    THashMap<ui64, double> Values; // id -> value; unsorted
-public:
-    void Clear() {
-        Values.clear();
-    }
-
-    TInstant Align(TInstant instant) const {
-        return TInstant::MicroSeconds(instant.MicroSeconds() / IntervalUs * IntervalUs);
-    }
-
-    // Amount of stored intervals
-    size_t Size() const {
-        return Values.size();
-    }
-
-    static constexpr TDuration Interval() noexcept {
-        return TDuration::MicroSeconds(IntervalUs);
-    }
-
-    void Add(TInstant instant, T value) {
-        Values[instant.MicroSeconds() / IntervalUs] += value;
-    }
-
-    friend class TTimeSeriesVec<T>;
-};
-
-// Time series storage and aggregator with compile-time defined discretization
-// Values added up and aligned according to grid with `IntervalUs` steps
-// Fixed-size circular buffer is used as storage
-// Only last consecutive `Size()` intervals are stored
-template <class T, ui64 IntervalUs>
-class TTimeSeriesVec {
-    TVector<T> Values; // circular buffer of intervals
+#pragma once 
+ 
+#include <util/datetime/base.h> 
+#include <util/generic/vector.h> 
+#include <util/generic/hash.h> 
+#include <util/system/types.h> 
+ 
+namespace NKikimr { 
+ 
+template <class T, ui64 IntervalUs = 10'000> class TTimeSeriesMap; 
+template <class T, ui64 IntervalUs = 10'000> class TTimeSeriesVec; 
+ 
+// Unbounded and sparse variant of TTimeSeriesVec. 
+template <class T, ui64 IntervalUs> 
+class TTimeSeriesMap { 
+    THashMap<ui64, double> Values; // id -> value; unsorted 
+public: 
+    void Clear() { 
+        Values.clear(); 
+    } 
+ 
+    TInstant Align(TInstant instant) const { 
+        return TInstant::MicroSeconds(instant.MicroSeconds() / IntervalUs * IntervalUs); 
+    } 
+ 
+    // Amount of stored intervals 
+    size_t Size() const { 
+        return Values.size(); 
+    } 
+ 
+    static constexpr TDuration Interval() noexcept { 
+        return TDuration::MicroSeconds(IntervalUs); 
+    } 
+ 
+    void Add(TInstant instant, T value) { 
+        Values[instant.MicroSeconds() / IntervalUs] += value; 
+    } 
+ 
+    friend class TTimeSeriesVec<T>; 
+}; 
+ 
+// Time series storage and aggregator with compile-time defined discretization 
+// Values added up and aligned according to grid with `IntervalUs` steps 
+// Fixed-size circular buffer is used as storage 
+// Only last consecutive `Size()` intervals are stored 
+template <class T, ui64 IntervalUs> 
+class TTimeSeriesVec { 
+    TVector<T> Values; // circular buffer of intervals 
     ui64 Id = 0; // id (instant/interval) of the last value in buffer
-public:
-    // Make empty time series
-    explicit TTimeSeriesVec(size_t size) {
-        Values.resize(size, T());
+public: 
+    // Make empty time series 
+    explicit TTimeSeriesVec(size_t size) { 
+        Values.resize(size, T()); 
         Id = size - 1;
-    }
-
-    // Make a subseries holding values within given time range [begin; end)
-    TTimeSeriesVec(const TTimeSeriesVec& source, TInstant begin, TInstant end) {
+    } 
+ 
+    // Make a subseries holding values within given time range [begin; end) 
+    TTimeSeriesVec(const TTimeSeriesVec& source, TInstant begin, TInstant end) { 
         ui64 beginId = Max(source.BeginId(), begin.MicroSeconds() / IntervalUs);
         ui64 endId = Min(source.EndId(), end.MicroSeconds() / IntervalUs);
-        if (beginId < endId) {
-            Values.reserve(endId - beginId);
-            for (ui64 id = beginId; id != endId; id++) {
-                Values.emplace_back(source.Values[id % source.Size()]);
-            }
-            Id = endId - 1;
-        } else {
-            Values.resize(1, T());
-            Id = 0;
-        }
-    }
-
-    void Clear() {
-        for (T& value : Values) {
-            value = T();
-        }
-    }
-
-    TInstant Align(TInstant instant) const {
-        return TInstant::MicroSeconds(instant.MicroSeconds() / IntervalUs * IntervalUs);
-    }
-
-    // Max amount of intervals
-    size_t Size() const {
-        return Values.size();
-    }
-
-    static constexpr TDuration Interval() noexcept {
-        return TDuration::MicroSeconds(IntervalUs);
-    }
-
-    // Instant of start of the first available interval (the oldest one)
-    TInstant Begin() const {
-        return TInstant::MicroSeconds(BeginId() * IntervalUs);
-    }
-
-    // Instant of interval after the last available one (the newest one)
-    TInstant End() const {
-        return TInstant::MicroSeconds(EndId() * IntervalUs);
-    }
-
-    // Instant of the next interval
-    TInstant Next(TInstant instant) const {
-        return TInstant::MicroSeconds(instant.MicroSeconds() + IntervalUs);
-    }
-
-    // Get value of interval containing instant
-    T Get(TInstant instant) const {
+        if (beginId < endId) { 
+            Values.reserve(endId - beginId); 
+            for (ui64 id = beginId; id != endId; id++) { 
+                Values.emplace_back(source.Values[id % source.Size()]); 
+            } 
+            Id = endId - 1; 
+        } else { 
+            Values.resize(1, T()); 
+            Id = 0; 
+        } 
+    } 
+ 
+    void Clear() { 
+        for (T& value : Values) { 
+            value = T(); 
+        } 
+    } 
+ 
+    TInstant Align(TInstant instant) const { 
+        return TInstant::MicroSeconds(instant.MicroSeconds() / IntervalUs * IntervalUs); 
+    } 
+ 
+    // Max amount of intervals 
+    size_t Size() const { 
+        return Values.size(); 
+    } 
+ 
+    static constexpr TDuration Interval() noexcept { 
+        return TDuration::MicroSeconds(IntervalUs); 
+    } 
+ 
+    // Instant of start of the first available interval (the oldest one) 
+    TInstant Begin() const { 
+        return TInstant::MicroSeconds(BeginId() * IntervalUs); 
+    } 
+ 
+    // Instant of interval after the last available one (the newest one) 
+    TInstant End() const { 
+        return TInstant::MicroSeconds(EndId() * IntervalUs); 
+    } 
+ 
+    // Instant of the next interval 
+    TInstant Next(TInstant instant) const { 
+        return TInstant::MicroSeconds(instant.MicroSeconds() + IntervalUs); 
+    } 
+ 
+    // Get value of interval containing instant 
+    T Get(TInstant instant) const { 
         ui64 id = instant.MicroSeconds() / IntervalUs;
-        return Values[id % Size()];
-    }
-
-    size_t Add(const TTimeSeriesVec& o, TInstant beginLimit = TInstant::Max()) {
-        ui64 idx = o.BeginId() % o.Size();
-        size_t result = Add(o.Begin(), &o.Values[0] + idx, o.Size() - idx, beginLimit);
-        if (idx > 0) {
-            result += Add(o.Begin() + o.Interval() * (o.Size() - idx), &o.Values[0], idx, beginLimit);
-        }
-        return result;
-    }
-
-    // Add values from array `values` of size `size` with custom `interval` (optimized for IntervalUs)
-    // History overwrite is allowed up to `beginLimit` (excluded)
-    // Returns number of added (or skipped) values
-    size_t Add(TDuration interval, TInstant start, const T* values, size_t size, TInstant beginLimit = TInstant::Max()) {
-        if (interval.MicroSeconds() == IntervalUs) {
-            return Add(start, values, size, beginLimit);
-        } else {
-            size_t result = 0;
-            while (size-- && Add(start, *values++, beginLimit)) {
-                result++;
-                start += interval;
-            }
-            return result;
+        return Values[id % Size()]; 
+    } 
+ 
+    size_t Add(const TTimeSeriesVec& o, TInstant beginLimit = TInstant::Max()) { 
+        ui64 idx = o.BeginId() % o.Size(); 
+        size_t result = Add(o.Begin(), &o.Values[0] + idx, o.Size() - idx, beginLimit); 
+        if (idx > 0) { 
+            result += Add(o.Begin() + o.Interval() * (o.Size() - idx), &o.Values[0], idx, beginLimit); 
         }
-    }
-
-    // Add single value at given instant
-    // History overwrite is allowed up to `beginLimit` (excluded)
-    // Returns true iff addition was successful or skipped (too old)
-    bool Add(TInstant instant, T value, TInstant beginLimit = TInstant::Max()) {
+        return result; 
+    } 
+ 
+    // Add values from array `values` of size `size` with custom `interval` (optimized for IntervalUs) 
+    // History overwrite is allowed up to `beginLimit` (excluded) 
+    // Returns number of added (or skipped) values 
+    size_t Add(TDuration interval, TInstant start, const T* values, size_t size, TInstant beginLimit = TInstant::Max()) { 
+        if (interval.MicroSeconds() == IntervalUs) { 
+            return Add(start, values, size, beginLimit); 
+        } else { 
+            size_t result = 0; 
+            while (size-- && Add(start, *values++, beginLimit)) { 
+                result++; 
+                start += interval; 
+            } 
+            return result; 
+        } 
+    } 
+ 
+    // Add single value at given instant 
+    // History overwrite is allowed up to `beginLimit` (excluded) 
+    // Returns true iff addition was successful or skipped (too old) 
+    bool Add(TInstant instant, T value, TInstant beginLimit = TInstant::Max()) { 
         ui64 id = instant.MicroSeconds() / IntervalUs;
-        return Add(id, value, beginLimit);
-    }
-
-    size_t Add(const TTimeSeriesMap<T>& tsm, TInstant beginLimit = TInstant::Max()) {
-        size_t result = 0;
-        for (auto [id, value] : tsm.Values) {
-            if (Add(id, value, beginLimit)) {
-                result++;
-            }
-        }
-        return result;
-    }
-
-private:
+        return Add(id, value, beginLimit); 
+    } 
+ 
+    size_t Add(const TTimeSeriesMap<T>& tsm, TInstant beginLimit = TInstant::Max()) { 
+        size_t result = 0; 
+        for (auto [id, value] : tsm.Values) { 
+            if (Add(id, value, beginLimit)) { 
+                result++; 
+            } 
+        } 
+        return result; 
+    } 
+ 
+private: 
     ui64 BeginId() const {
-        return Id + 1 - Size();
-    }
-
+        return Id + 1 - Size(); 
+    } 
+ 
     ui64 EndId() const {
-        return Id + 1;
-    }
-
-    // Optimized Add() for values with interval equal to IntervalUs
-    size_t Add(TInstant start, const T* values, size_t size, TInstant beginLimit = TInstant::Max()) {
-        ui64 id1 = start.MicroSeconds() / IntervalUs;
-        ui64 id2 = id1 + size;
-        if (beginLimit != TInstant::Max()) { // enforce limit
-            id2 = Min(id2, beginLimit.MicroSeconds() / IntervalUs + Size() - 1);
-        }
-        Propagate(id2 - 1);
-        ui64 skip = 0;
-        if (BeginId() > id1) {
-            skip = BeginId() - id1;
-        }
-        values += skip;
-        size -= skip;
-        size_t added = 0;
-        for (ui64 id = id1 + skip; id < id2; id++, added++) {
-            Values[id % Size()] += *values++;
-        }
-        return added;
-    }
-
-    bool Add(ui64 id, T value, TInstant beginLimit = TInstant::Max()) {
-        if (beginLimit != TInstant::Max()) {
-            ui64 limitId = beginLimit.MicroSeconds() / IntervalUs + Size() - 1;
-            if (id > limitId) {
-                Propagate(limitId); // actually do propagation even on failure to be consistent
-                return false; // limit exceeded
-            }
-        }
-        Propagate(id);
-        if (id < BeginId()) {
-            return true; // skip value from past, successfully
-        }
-        Values[id % Size()] += value;
-        return true; // added successfully
-    }
-
+        return Id + 1; 
+    } 
+ 
+    // Optimized Add() for values with interval equal to IntervalUs 
+    size_t Add(TInstant start, const T* values, size_t size, TInstant beginLimit = TInstant::Max()) { 
+        ui64 id1 = start.MicroSeconds() / IntervalUs; 
+        ui64 id2 = id1 + size; 
+        if (beginLimit != TInstant::Max()) { // enforce limit 
+            id2 = Min(id2, beginLimit.MicroSeconds() / IntervalUs + Size() - 1); 
+        } 
+        Propagate(id2 - 1); 
+        ui64 skip = 0; 
+        if (BeginId() > id1) { 
+            skip = BeginId() - id1; 
+        } 
+        values += skip; 
+        size -= skip; 
+        size_t added = 0; 
+        for (ui64 id = id1 + skip; id < id2; id++, added++) { 
+            Values[id % Size()] += *values++; 
+        } 
+        return added; 
+    } 
+ 
+    bool Add(ui64 id, T value, TInstant beginLimit = TInstant::Max()) { 
+        if (beginLimit != TInstant::Max()) { 
+            ui64 limitId = beginLimit.MicroSeconds() / IntervalUs + Size() - 1; 
+            if (id > limitId) { 
+                Propagate(limitId); // actually do propagation even on failure to be consistent 
+                return false; // limit exceeded 
+            } 
+        } 
+        Propagate(id); 
+        if (id < BeginId()) { 
+            return true; // skip value from past, successfully 
+        } 
+        Values[id % Size()] += value; 
+        return true; // added successfully 
+    } 
+ 
     void Propagate(ui64 id) {
         if (id <= Id) {
-            return;
-        }
+            return; 
+        } 
         if (id - Id >= Size()) {
-            Clear();
-            Id = id;
-        } else {
-            while (Id < id) {
-                Values[++Id % Size()] = T();
-            }
-        }
-    }
-};
-
-}
+            Clear(); 
+            Id = id; 
+        } else { 
+            while (Id < id) { 
+                Values[++Id % Size()] = T(); 
+            } 
+        } 
+    } 
+}; 
+ 
+} 
diff --git a/ydb/core/util/time_series_vec_ut.cpp b/ydb/core/util/time_series_vec_ut.cpp
index ca5aa41d88..e117b5df49 100644
--- a/ydb/core/util/time_series_vec_ut.cpp
+++ b/ydb/core/util/time_series_vec_ut.cpp
@@ -1,28 +1,28 @@
-#include <library/cpp/testing/unittest/registar.h>
-#include "time_series_vec.h"
-
-namespace NKikimr {
-
-Y_UNIT_TEST_SUITE(TTimeSeriesVecTest) {
-    Y_UNIT_TEST(Smoke) {
-        constexpr TDuration Interval = TDuration::MilliSeconds(1);
-        constexpr size_t Size = 3;
-        TTimeSeriesVec<int, Interval.MicroSeconds()> tsv(Size);
-        UNIT_ASSERT(tsv.Size() == Size);
-        TInstant now = TInstant::Now();
-        tsv.Add(now, 10);
-        tsv.Add(now, 20);
-        UNIT_ASSERT(tsv.Get(now) == 30);
-        tsv.Add(now + Interval, 40);
-        UNIT_ASSERT(tsv.Get(now) == 30);
-        UNIT_ASSERT(tsv.Get(now + Interval) == 40);
-
-        int total = 0;
-        for (TInstant i = tsv.Begin(), e = tsv.End(); i != e; i = tsv.Next(i)) {
-            total += tsv.Get(i);
-        }
-        UNIT_ASSERT(total == 70);
-    }
+#include <library/cpp/testing/unittest/registar.h> 
+#include "time_series_vec.h" 
+ 
+namespace NKikimr { 
+ 
+Y_UNIT_TEST_SUITE(TTimeSeriesVecTest) { 
+    Y_UNIT_TEST(Smoke) { 
+        constexpr TDuration Interval = TDuration::MilliSeconds(1); 
+        constexpr size_t Size = 3; 
+        TTimeSeriesVec<int, Interval.MicroSeconds()> tsv(Size); 
+        UNIT_ASSERT(tsv.Size() == Size); 
+        TInstant now = TInstant::Now(); 
+        tsv.Add(now, 10); 
+        tsv.Add(now, 20); 
+        UNIT_ASSERT(tsv.Get(now) == 30); 
+        tsv.Add(now + Interval, 40); 
+        UNIT_ASSERT(tsv.Get(now) == 30); 
+        UNIT_ASSERT(tsv.Get(now + Interval) == 40); 
+ 
+        int total = 0; 
+        for (TInstant i = tsv.Begin(), e = tsv.End(); i != e; i = tsv.Next(i)) { 
+            total += tsv.Get(i); 
+        } 
+        UNIT_ASSERT(total == 70); 
+    } 
 
     Y_UNIT_TEST(IndexesArePositive) {
         constexpr TDuration Interval = TDuration::MilliSeconds(1);
@@ -80,12 +80,12 @@ Y_UNIT_TEST_SUITE(TTimeSeriesVecTest) {
         }
 
         int data[3] = {5, 6, 7};
-        tsv.Add(tsv.Interval(), tsv.End(), data, 3);
+        tsv.Add(tsv.Interval(), tsv.End(), data, 3); 
 
         UNIT_ASSERT(tsv.Get(tsv.Begin()) == 3);
         UNIT_ASSERT(tsv.Get(tsv.End() - Interval) == 7);
 
-        tsv.Add(tsv.Interval(), tsv.Begin(), data, 3);
+        tsv.Add(tsv.Interval(), tsv.Begin(), data, 3); 
 
         UNIT_ASSERT(tsv.Get(tsv.Begin()) == 8); // 3 + 5
         UNIT_ASSERT(tsv.Get(tsv.Begin() + Interval) == 10); // 4 + 6
@@ -95,7 +95,7 @@ Y_UNIT_TEST_SUITE(TTimeSeriesVecTest) {
 
         int data2[7] = {8, 9, 10, 11, 12, 13, 14};
 
-        tsv.Add(tsv.Interval(), tsv.End() - Interval, data2, 7);
+        tsv.Add(tsv.Interval(), tsv.End() - Interval, data2, 7); 
 
         UNIT_ASSERT(tsv.Get(tsv.Begin()) == 10);
         UNIT_ASSERT(tsv.Get(tsv.End() - Interval) == 14);
@@ -119,6 +119,6 @@ Y_UNIT_TEST_SUITE(TTimeSeriesVecTest) {
         UNIT_ASSERT(tsv.Get(tsv.Begin() + Interval * 3) == 3); // 3
         UNIT_ASSERT(tsv.Get(tsv.Begin() + Interval * 4) == 11); // 4 + 7
     }
-}
-
-} // NKikimr
+} 
+ 
+} // NKikimr 
diff --git a/ydb/core/util/token_bucket.h b/ydb/core/util/token_bucket.h
index 060f8c75a6..3d1be1b39e 100644
--- a/ydb/core/util/token_bucket.h
+++ b/ydb/core/util/token_bucket.h
@@ -1,74 +1,74 @@
-#pragma once
-
-#include <util/datetime/base.h>
-
+#pragma once 
+ 
+#include <util/datetime/base.h> 
+ 
 #include <cmath>
 
-namespace NKikimr {
-
-class TTokenBucket {
-    double Tokens = 0.0; // tokens currenty in bucket
-    double Rate = 0.0; // tokens filling rate [tokens/sec]
-    double Capacity = 0.0; // maximum amount of tokens allowed in bucket
-    TInstant LastFill = TInstant::Zero();
-
-public:
-    // Create unlimited bucket
-    // NOTE: any bucket is created fully filled
-    TTokenBucket() {
-        SetUnlimited();
-    }
-
-    // Reset bucket into unlimited mode
-    void SetUnlimited() {
-        Tokens = std::numeric_limits<double>::infinity(); // tokens currenty in bucket
-        Rate = 0.0; // tokens fillig rate [tokens/sec]
-        Capacity = std::numeric_limits<double>::infinity(); // maximum amount of tokens allowed in bucket
-    }
-
+namespace NKikimr { 
+ 
+class TTokenBucket { 
+    double Tokens = 0.0; // tokens currenty in bucket 
+    double Rate = 0.0; // tokens filling rate [tokens/sec] 
+    double Capacity = 0.0; // maximum amount of tokens allowed in bucket 
+    TInstant LastFill = TInstant::Zero(); 
+ 
+public: 
+    // Create unlimited bucket 
+    // NOTE: any bucket is created fully filled 
+    TTokenBucket() { 
+        SetUnlimited(); 
+    } 
+ 
+    // Reset bucket into unlimited mode 
+    void SetUnlimited() { 
+        Tokens = std::numeric_limits<double>::infinity(); // tokens currenty in bucket 
+        Rate = 0.0; // tokens fillig rate [tokens/sec] 
+        Capacity = std::numeric_limits<double>::infinity(); // maximum amount of tokens allowed in bucket 
+    } 
+ 
     bool IsUnlimited() const {
         return Tokens == std::numeric_limits<double>::infinity() &&
             Rate == 0.0 &&
             Capacity == std::numeric_limits<double>::infinity();
     }
 
-    // Reset rate
-    void SetRate(double rate) {
-        Rate = rate;
-    }
-
-    // Reset capacity
-    void SetCapacity(double capacity) {
-        Capacity = capacity;
-        if (Tokens > Capacity) {
-            Tokens = Capacity;
-        }
-    }
-
-    // Fill bucket with tokens, should be done just before Take()
-    void Fill(TInstant now) {
-        // NOTE: LastFill is allowed to be zero, the following code will work OK
-        TDuration elapsed = now - LastFill;
-        Tokens += elapsed.SecondsFloat() * Rate;
-        if (Tokens > Capacity) {
-            Tokens = Capacity;
-        }
-        LastFill = now;
-    }
-
-    // Use accumulated tokens
-    void Take(double amount) {
-        Tokens -= amount;
-    }
-
-    // Fill and take if available, returns taken amount
-    double FillAndTryTake(TInstant now, double amount) {
-        Fill(now);
-        amount = Min(amount, Tokens);
-        Take(amount);
-        return amount;
-    }
-
+    // Reset rate 
+    void SetRate(double rate) { 
+        Rate = rate; 
+    } 
+ 
+    // Reset capacity 
+    void SetCapacity(double capacity) { 
+        Capacity = capacity; 
+        if (Tokens > Capacity) { 
+            Tokens = Capacity; 
+        } 
+    } 
+ 
+    // Fill bucket with tokens, should be done just before Take() 
+    void Fill(TInstant now) { 
+        // NOTE: LastFill is allowed to be zero, the following code will work OK 
+        TDuration elapsed = now - LastFill; 
+        Tokens += elapsed.SecondsFloat() * Rate; 
+        if (Tokens > Capacity) { 
+            Tokens = Capacity; 
+        } 
+        LastFill = now; 
+    } 
+ 
+    // Use accumulated tokens 
+    void Take(double amount) { 
+        Tokens -= amount; 
+    } 
+ 
+    // Fill and take if available, returns taken amount 
+    double FillAndTryTake(TInstant now, double amount) { 
+        Fill(now); 
+        amount = Min(amount, Tokens); 
+        Take(amount); 
+        return amount; 
+    } 
+ 
     // don't forget to Fill or use FillAndNextAvailableDelay() instead
     TDuration NextAvailableDelay() const {
         if (IsUnlimited() || Available() >= 0) {
@@ -83,22 +83,22 @@ public:
         return NextAvailableDelay();
     }
 
-    // Amount of accumulated tokens
-    double Available() const {
-        return Tokens;
-    }
-
-    double GetRate() const {
-        return Rate;
-    }
-
-    double GetCapacity() const {
-        return Capacity;
-    }
-
-    TInstant GetLastFill() const {
-        return LastFill;
-    }
-};
-
-}   // namespace NKikimr
+    // Amount of accumulated tokens 
+    double Available() const { 
+        return Tokens; 
+    } 
+ 
+    double GetRate() const { 
+        return Rate; 
+    } 
+ 
+    double GetCapacity() const { 
+        return Capacity; 
+    } 
+ 
+    TInstant GetLastFill() const { 
+        return LastFill; 
+    } 
+}; 
+ 
+}   // namespace NKikimr 
diff --git a/ydb/core/util/token_bucket_ut.cpp b/ydb/core/util/token_bucket_ut.cpp
index ef35e78ccd..f974248e12 100644
--- a/ydb/core/util/token_bucket_ut.cpp
+++ b/ydb/core/util/token_bucket_ut.cpp
@@ -1,72 +1,72 @@
-#include <library/cpp/testing/unittest/registar.h>
-#include "token_bucket.h"
-
-namespace NKikimr {
-
-Y_UNIT_TEST_SUITE(TTokenBucketTest) {
-
-    static constexpr double Eps = 1e-9;
-
-    Y_UNIT_TEST(Unlimited) {
-        TTokenBucket tb;
-        UNIT_ASSERT(tb.Available() == std::numeric_limits<double>::infinity());
-        tb.Take(100500);
-        UNIT_ASSERT(tb.Available() == std::numeric_limits<double>::infinity());
-        TInstant now = TInstant::Now();
-        tb.Fill(now);
-        now += TDuration::Seconds(1);
-        UNIT_ASSERT(tb.Available() == std::numeric_limits<double>::infinity());
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.FillAndTryTake(now, 42), 42, Eps);
-    }
-
-    Y_UNIT_TEST(Limited) {
-        TTokenBucket tb;
-        tb.SetRate(100);
-        tb.SetCapacity(1000);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 1000, Eps);
-        TInstant now = TInstant::Now();
-        tb.Fill(now);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 1000, Eps);
-        tb.Take(500);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 500, Eps);
-        now += TDuration::Seconds(1);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.FillAndTryTake(now, 100500), 600, Eps);
-        now += TDuration::Days(1);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.FillAndTryTake(now, 100500), 1000, Eps);
-        now += TDuration::Seconds(1);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.FillAndTryTake(now, 100500), 100, Eps);
-        now += TDuration::Seconds(2);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.FillAndTryTake(now, 100), 100, Eps);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.FillAndTryTake(now, 50), 50, Eps);
-        now += TDuration::Seconds(1);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.FillAndTryTake(now, 200), 150, Eps);
-        tb.Take(100);
-        now += TDuration::Seconds(3);
-        tb.Fill(now);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 200, Eps);
-
-        tb.SetRate(200);
-        now += TDuration::Seconds(1);
-        tb.Fill(now);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 400, Eps);
-        now += TDuration::Seconds(1);
-        tb.Fill(now);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 600, Eps);
-        now += TDuration::Days(365);
-        tb.Fill(now);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 1000, Eps);
-
-        tb.SetCapacity(500);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 500, Eps);
-        tb.SetCapacity(2000);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 500, Eps);
-        now += TDuration::Days(365);
-        tb.Fill(now);
-        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 2000, Eps);
-
-        tb.SetUnlimited();
-        UNIT_ASSERT(tb.Available() == std::numeric_limits<double>::infinity());
-    }
+#include <library/cpp/testing/unittest/registar.h> 
+#include "token_bucket.h" 
+ 
+namespace NKikimr { 
+ 
+Y_UNIT_TEST_SUITE(TTokenBucketTest) { 
+ 
+    static constexpr double Eps = 1e-9; 
+ 
+    Y_UNIT_TEST(Unlimited) { 
+        TTokenBucket tb; 
+        UNIT_ASSERT(tb.Available() == std::numeric_limits<double>::infinity()); 
+        tb.Take(100500); 
+        UNIT_ASSERT(tb.Available() == std::numeric_limits<double>::infinity()); 
+        TInstant now = TInstant::Now(); 
+        tb.Fill(now); 
+        now += TDuration::Seconds(1); 
+        UNIT_ASSERT(tb.Available() == std::numeric_limits<double>::infinity()); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.FillAndTryTake(now, 42), 42, Eps); 
+    } 
+ 
+    Y_UNIT_TEST(Limited) { 
+        TTokenBucket tb; 
+        tb.SetRate(100); 
+        tb.SetCapacity(1000); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 1000, Eps); 
+        TInstant now = TInstant::Now(); 
+        tb.Fill(now); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 1000, Eps); 
+        tb.Take(500); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 500, Eps); 
+        now += TDuration::Seconds(1); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.FillAndTryTake(now, 100500), 600, Eps); 
+        now += TDuration::Days(1); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.FillAndTryTake(now, 100500), 1000, Eps); 
+        now += TDuration::Seconds(1); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.FillAndTryTake(now, 100500), 100, Eps); 
+        now += TDuration::Seconds(2); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.FillAndTryTake(now, 100), 100, Eps); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.FillAndTryTake(now, 50), 50, Eps); 
+        now += TDuration::Seconds(1); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.FillAndTryTake(now, 200), 150, Eps); 
+        tb.Take(100); 
+        now += TDuration::Seconds(3); 
+        tb.Fill(now); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 200, Eps); 
+ 
+        tb.SetRate(200); 
+        now += TDuration::Seconds(1); 
+        tb.Fill(now); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 400, Eps); 
+        now += TDuration::Seconds(1); 
+        tb.Fill(now); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 600, Eps); 
+        now += TDuration::Days(365); 
+        tb.Fill(now); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 1000, Eps); 
+ 
+        tb.SetCapacity(500); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 500, Eps); 
+        tb.SetCapacity(2000); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 500, Eps); 
+        now += TDuration::Days(365); 
+        tb.Fill(now); 
+        UNIT_ASSERT_DOUBLES_EQUAL(tb.Available(), 2000, Eps); 
+ 
+        tb.SetUnlimited(); 
+        UNIT_ASSERT(tb.Available() == std::numeric_limits<double>::infinity()); 
+    } 
 
     Y_UNIT_TEST(DelayCalculation) {
         TTokenBucket tb;
@@ -85,6 +85,6 @@ Y_UNIT_TEST_SUITE(TTokenBucketTest) {
         tb.Fill(now);
         UNIT_ASSERT_VALUES_EQUAL(tb.NextAvailableDelay(), TDuration::Zero());
     }
-}
-
-} // NKikimr
+} 
+ 
+} // NKikimr 
diff --git a/ydb/core/util/ut/ya.make b/ydb/core/util/ut/ya.make
index 315713cad8..8826a4035f 100644
--- a/ydb/core/util/ut/ya.make
+++ b/ydb/core/util/ut/ya.make
@@ -44,8 +44,8 @@ SRCS(
     queue_inplace_ut.cpp
     queue_oneone_inplace_ut.cpp
     simple_cache_ut.cpp
-    time_series_vec_ut.cpp
-    token_bucket_ut.cpp
+    time_series_vec_ut.cpp 
+    token_bucket_ut.cpp 
     ulid_ut.cpp
     wildcard_ut.cpp
 )
diff --git a/ydb/core/util/ya.make b/ydb/core/util/ya.make
index 4f325d8fcb..27d9fe30bd 100644
--- a/ydb/core/util/ya.make
+++ b/ydb/core/util/ya.make
@@ -50,8 +50,8 @@ SRCS(
     testactorsys.h
     text.cpp
     text.h
-    time_series_vec.h
-    token_bucket.h
+    time_series_vec.h 
+    token_bucket.h 
     throughput_meter.h
     tuples.h
     type_alias.h
diff --git a/ydb/core/viewer/protos/viewer.proto b/ydb/core/viewer/protos/viewer.proto
index 9f6c822a89..b47263ae8b 100644
--- a/ydb/core/viewer/protos/viewer.proto
+++ b/ydb/core/viewer/protos/viewer.proto
@@ -182,10 +182,10 @@ message TMetaRtmrOperationInfo {
             string Options = 1;
             // Force pause between operation executions on one key; seconds
             uint32 PostponeTimeout = 2;
-            // Pacing period for postponed keys (maximum error added to PostponeTimeout); seconds
-            uint32 PostponePacePeriod = 13;
-            // Force pause before first operation execution on one key; seconds
-            uint32 BatchTimeout = 11;
+            // Pacing period for postponed keys (maximum error added to PostponeTimeout); seconds 
+            uint32 PostponePacePeriod = 13; 
+            // Force pause before first operation execution on one key; seconds 
+            uint32 BatchTimeout = 11; 
             // Max age of data being read for operation execution; seconds
             uint32 MaxTimeBack = 3;
             // Operation instance recreation period; seconds
@@ -202,8 +202,8 @@ message TMetaRtmrOperationInfo {
             string WorkingDirectory = 9;
             // Dynamic library name
             string LibraryName = 10;
-            // Tolerance to failures during operation execution
-            uint32 SuspendThreshold = 12;
+            // Tolerance to failures during operation execution 
+            uint32 SuspendThreshold = 12; 
     };
 
     message TStats {
diff --git a/ydb/library/aclib/aclib.cpp b/ydb/library/aclib/aclib.cpp
index 946497ea30..1ad4e9648c 100644
--- a/ydb/library/aclib/aclib.cpp
+++ b/ydb/library/aclib/aclib.cpp
@@ -171,7 +171,7 @@ bool TSecurityObject::CheckAccess(ui32 access, const TUserToken& user) const {
                     switch(static_cast<EAccessType>(ace.GetAccessType())) {
                     case EAccessType::Deny:
                         if (access && ace.GetAccessRight() != 0)
-                            return false; // deny entries have precedence over allow entries
+                            return false; // deny entries have precedence over allow entries 
                         break;
                     case EAccessType::Allow:
                         accessRightsLeft &= ~(accessRightsLeft & ace.GetAccessRight()); // some rights allowed
@@ -263,26 +263,26 @@ TInstant TSecurityObject::GetExpireTime() const {
     return TInstant::MilliSeconds(static_cast<const NACLibProto::TSecurityObject&>(*this).GetExpireTime());
 }
 
-TString TSecurityObject::ToString() const Y_NO_SANITIZE("undefined") {
-    return static_cast<const TACL&>(GetACL()).ToString();
-}
-
-void TSecurityObject::FromString(const TString& string) Y_NO_SANITIZE("undefined") {
-    static_cast<TACL*>(MutableACL())->FromString(string);
-}
-
+TString TSecurityObject::ToString() const Y_NO_SANITIZE("undefined") { 
+    return static_cast<const TACL&>(GetACL()).ToString(); 
+} 
+ 
+void TSecurityObject::FromString(const TString& string) Y_NO_SANITIZE("undefined") { 
+    static_cast<TACL*>(MutableACL())->FromString(string); 
+} 
+ 
 void TSecurityObject::ApplyDiff(const NACLibProto::TDiffACL& diffACL) Y_NO_SANITIZE("undefined") {
     static_cast<TACL*>(MutableACL())->ApplyDiff(diffACL);
 }
 
-bool TSecurityObject::operator ==(const NACLib::TSecurityObject& rhs) const {
-    return IsContainer == rhs.IsContainer && NProtoBuf::IsEqual(*this, rhs);
-}
-
-bool TSecurityObject::operator !=(const NACLib::TSecurityObject& rhs) const {
-    return !(*this == rhs);
-}
-
+bool TSecurityObject::operator ==(const NACLib::TSecurityObject& rhs) const { 
+    return IsContainer == rhs.IsContainer && NProtoBuf::IsEqual(*this, rhs); 
+} 
+ 
+bool TSecurityObject::operator !=(const NACLib::TSecurityObject& rhs) const { 
+    return !(*this == rhs); 
+} 
+ 
 std::pair<ui32, ui32> TACL::AddAccess(NACLib::EAccessType type, ui32 access, const NACLib::TSID& sid, ui32 inheritance) Y_NO_SANITIZE("undefined") {
     for (int i = 0; i < static_cast<int>(ACESize()); ++i) {
         const NACLibProto::TACE& ace(GetACE(i));
@@ -646,7 +646,7 @@ void TACL::FromString(const TString& string) {
         FromString(ace, string.substr(start_pos, end_pos == TString::npos ? end_pos : end_pos - start_pos));
         if (end_pos == TString::npos)
             break;
-        it = string.begin() + end_pos;
+        it = string.begin() + end_pos; 
     }
 }
 
diff --git a/ydb/library/aclib/aclib.h b/ydb/library/aclib/aclib.h
index 655ca4b669..9d8ee84450 100644
--- a/ydb/library/aclib/aclib.h
+++ b/ydb/library/aclib/aclib.h
@@ -142,10 +142,10 @@ public:
     void ApplyDiff(const NACLibProto::TDiffACL& diffACL);
     void ClearAccess();
     TInstant GetExpireTime() const;
-    TString ToString() const; // simple text format
-    void FromString(const TString& string); // simple text format
-    bool operator == (const TSecurityObject& rhs) const;
-    bool operator != (const TSecurityObject& rhs) const;
+    TString ToString() const; // simple text format 
+    void FromString(const TString& string); // simple text format 
+    bool operator == (const TSecurityObject& rhs) const; 
+    bool operator != (const TSecurityObject& rhs) const; 
 
 protected:
     bool IsContainer;
diff --git a/ydb/library/schlab/mon/mon.cpp b/ydb/library/schlab/mon/mon.cpp
index fc06b412ae..ad36e869d2 100644
--- a/ydb/library/schlab/mon/mon.cpp
+++ b/ydb/library/schlab/mon/mon.cpp
@@ -1,35 +1,35 @@
-#include "mon.h"
-
+#include "mon.h" 
+ 
 #include <ydb/library/schlab/schemu/schemu.h>
 #include <library/cpp/monlib/service/pages/mon_page.h>
 #include <library/cpp/monlib/service/pages/resource_mon_page.h>
 #include <library/cpp/monlib/service/pages/templates.h>
 #include <library/cpp/resource/resource.h>
 #include <library/cpp/html/pcdata/pcdata.h>
-#include <util/stream/str.h>
-
-namespace NKikimr {
-
-using namespace NMonitoring;
-
-class TSchArmMonPage : public IMonPage {
-private:
-    TString SchVizUrl;
+#include <util/stream/str.h> 
+ 
+namespace NKikimr { 
+ 
+using namespace NMonitoring; 
+ 
+class TSchArmMonPage : public IMonPage { 
+private: 
+    TString SchVizUrl; 
     TString JsonConfig;
     bool IsRunning = false;
     TMutex EmuMutex;
     THolder<NSchLab::TSchEmu> SchEmu;
-public:
-    TSchArmMonPage(const TString& path, const TString& schVizUrl)
-        : IMonPage(path, "SchArm")
-        , SchVizUrl(schVizUrl)
-    {}
-
+public: 
+    TSchArmMonPage(const TString& path, const TString& schVizUrl) 
+        : IMonPage(path, "SchArm") 
+        , SchVizUrl(schVizUrl) 
+    {} 
+ 
     virtual void Output(IMonHttpRequest& request) {
         TGuard<TMutex> guard(EmuMutex);
-
-        TStringStream out;
-        try {
+ 
+        TStringStream out; 
+        try { 
             if (request.GetMethod() == HTTP_METHOD_GET) {
                 if (request.GetParams().Get("mode") == "") {
                     OutputIndex(request, out);
@@ -44,31 +44,31 @@ public:
                 } else {
                     ythrow yexception() << "Bad request, expected mode=setconfig";
                 }
-            } else {
+            } else { 
                 ythrow yexception() << "Unexpected request method# " << (i32)request.GetMethod();
-            }
-        } catch (...) {
-            out.Clear();
-            out << HTTPOKTEXT;
-            out << "exception: " << CurrentExceptionMessage();
-        }
-
+            } 
+        } catch (...) { 
+            out.Clear(); 
+            out << HTTPOKTEXT; 
+            out << "exception: " << CurrentExceptionMessage(); 
+        } 
+ 
         request.Output() << out.Str();
-    }
-
-private:
+    } 
+ 
+private: 
     void OutputIndex(const IMonHttpRequest& request, IOutputStream& out) {
         TGuard<TMutex> guard(EmuMutex);
-        Y_UNUSED(request);
-        out << HTTPOKHTML;
-        HTML(out) {
-            out << NResource::Find("schlab/scharm.html")
-                << "<script type=\"text/javascript\">\n"
+        Y_UNUSED(request); 
+        out << HTTPOKHTML; 
+        HTML(out) { 
+            out << NResource::Find("schlab/scharm.html") 
+                << "<script type=\"text/javascript\">\n" 
                 << "  $('#btnArm').click(function(){scharm.sendCfg(function(){window.open('"
                 << SchVizUrl << "','_blank');});});\n"
-                << "</script>\n";
-        }
-    }
+                << "</script>\n"; 
+        } 
+    } 
 
     void InputConfig(const IMonHttpRequest& request, IOutputStream& out) {
         TGuard<TMutex> guard(EmuMutex);
@@ -90,109 +90,109 @@ private:
             SchEmu->OutputLogJson(out);
         }
     }
-};
-
-class TSchVizMonPage : public IMonPage {
-private:
-    TString DataUrl;
-public:
-    TSchVizMonPage(const TString& path, const TString& dataUrl)
-        : IMonPage(path, "SchViz")
-        , DataUrl(dataUrl)
-    {}
-
+}; 
+ 
+class TSchVizMonPage : public IMonPage { 
+private: 
+    TString DataUrl; 
+public: 
+    TSchVizMonPage(const TString& path, const TString& dataUrl) 
+        : IMonPage(path, "SchViz") 
+        , DataUrl(dataUrl) 
+    {} 
+ 
     virtual void Output(IMonHttpRequest& request) {
-        TStringStream out;
-        try {
-            if (request.GetParams().Get("mode") == "") {
-                OutputIndex(request, out);
-            } else if (request.GetParams().Get("mode") == "js") {
-                OutputJavaScript(request, out);
-            } else {
-                ythrow yexception() << "Bad request";
-            }
-        } catch (...) {
-            out.Clear();
-            out << HTTPOKTEXT;
-            out << "exception: " << CurrentExceptionMessage();
-        }
-
+        TStringStream out; 
+        try { 
+            if (request.GetParams().Get("mode") == "") { 
+                OutputIndex(request, out); 
+            } else if (request.GetParams().Get("mode") == "js") { 
+                OutputJavaScript(request, out); 
+            } else { 
+                ythrow yexception() << "Bad request"; 
+            } 
+        } catch (...) { 
+            out.Clear(); 
+            out << HTTPOKTEXT; 
+            out << "exception: " << CurrentExceptionMessage(); 
+        } 
+ 
         request.Output() << out.Str();
-    }
-
-private:
+    } 
+ 
+private: 
     void OutputIndex(const IMonHttpRequest& request, IOutputStream& out)
-    {
-        Y_UNUSED(request);
-        out << HTTPOKHTML;
-        HTML(out) {
-            out << R"__EOF__(<!DOCTYPE html>
-<html>
-<head>
-    <title>SchViz</title>
-    <link type="text/css" href="css/schviz.css" rel="stylesheet" />
-</head>
-<body></body>
-</html>
-
-<script type="text/javascript" src="js/d3.v4.min.js"></script>
-<script type="text/javascript" src="js/d3-tip-0.8.0-alpha.1.js"></script>
-<script type="text/javascript" src="js/schviz.js"></script>
-<script type="text/javascript" src="?mode=js"></script>
-)__EOF__";
-        }
-    }
-
+    { 
+        Y_UNUSED(request); 
+        out << HTTPOKHTML; 
+        HTML(out) { 
+            out << R"__EOF__(<!DOCTYPE html> 
+<html> 
+<head> 
+    <title>SchViz</title> 
+    <link type="text/css" href="css/schviz.css" rel="stylesheet" /> 
+</head> 
+<body></body> 
+</html> 
+ 
+<script type="text/javascript" src="js/d3.v4.min.js"></script> 
+<script type="text/javascript" src="js/d3-tip-0.8.0-alpha.1.js"></script> 
+<script type="text/javascript" src="js/schviz.js"></script> 
+<script type="text/javascript" src="?mode=js"></script> 
+)__EOF__"; 
+        } 
+    } 
+ 
     void OutputJavaScript(const IMonHttpRequest& request, IOutputStream& out)
-    {
-        Y_UNUSED(request);
-        out << HTTPOKJAVASCRIPT;
-        out << "d3.json(\"" << DataUrl << "\", function(data) {";
-        out << R"__EOF__(
-   var schviz = d3.schviz();
-   schviz.timeDomain([0, 1000]);
-   schviz(data);
-});
-)__EOF__";
-    }
-};
-
-#define SCHLAB_STATIC_FILE(file, type) \
-    mon->Register(new TResourceMonPage(file, file, TResourceMonPage::type)); \
-    /**/
-
-void CreateSchLabCommonPages(TMonService2* mon) {
-    // used external components
-    SCHLAB_STATIC_FILE("schlab/js/d3.v4.min.js", JAVASCRIPT);
-}
-
-void CreateSchArmPages(TMonService2* mon, const TString& path, const TString& schVizUrl) {
-    // used external components
-    SCHLAB_STATIC_FILE("schlab/css/bootstrap.min.css", CSS);
-    SCHLAB_STATIC_FILE("schlab/js/jquery.min.js", JAVASCRIPT);
-    SCHLAB_STATIC_FILE("schlab/js/bootstrap.min.js", JAVASCRIPT);
-
-    // scharm static files
-    SCHLAB_STATIC_FILE("schlab/css/scharm.css", CSS);
-    SCHLAB_STATIC_FILE("schlab/js/scharm.js", JAVASCRIPT);
+    { 
+        Y_UNUSED(request); 
+        out << HTTPOKJAVASCRIPT; 
+        out << "d3.json(\"" << DataUrl << "\", function(data) {"; 
+        out << R"__EOF__( 
+   var schviz = d3.schviz(); 
+   schviz.timeDomain([0, 1000]); 
+   schviz(data); 
+}); 
+)__EOF__"; 
+    } 
+}; 
+ 
+#define SCHLAB_STATIC_FILE(file, type) \ 
+    mon->Register(new TResourceMonPage(file, file, TResourceMonPage::type)); \ 
+    /**/ 
+ 
+void CreateSchLabCommonPages(TMonService2* mon) { 
+    // used external components 
+    SCHLAB_STATIC_FILE("schlab/js/d3.v4.min.js", JAVASCRIPT); 
+} 
+ 
+void CreateSchArmPages(TMonService2* mon, const TString& path, const TString& schVizUrl) { 
+    // used external components 
+    SCHLAB_STATIC_FILE("schlab/css/bootstrap.min.css", CSS); 
+    SCHLAB_STATIC_FILE("schlab/js/jquery.min.js", JAVASCRIPT); 
+    SCHLAB_STATIC_FILE("schlab/js/bootstrap.min.js", JAVASCRIPT); 
+ 
+    // scharm static files 
+    SCHLAB_STATIC_FILE("schlab/css/scharm.css", CSS); 
+    SCHLAB_STATIC_FILE("schlab/js/scharm.js", JAVASCRIPT); 
     SCHLAB_STATIC_FILE("schlab/js/scharm-test0.js", JAVASCRIPT);
-
-    // scharm page itself
-    mon->Register(new TSchArmMonPage(path, schVizUrl));
-}
-
-void CreateSchVizPages(TMonService2* mon, const TString& path, const TString& dataUrl) {
-    // used external components
-    SCHLAB_STATIC_FILE("schlab/js/d3-tip-0.8.0-alpha.1.js", JAVASCRIPT);
-
-    // schviz static files
-    SCHLAB_STATIC_FILE("schlab/css/schviz.css", CSS);
-    SCHLAB_STATIC_FILE("schlab/js/schviz.js", JAVASCRIPT);
-
-    // schviz page itself
-    mon->Register(new TSchVizMonPage(path, dataUrl));
-}
-
-#undef SCHLAB_STATIC_FILE
-
-}
+ 
+    // scharm page itself 
+    mon->Register(new TSchArmMonPage(path, schVizUrl)); 
+} 
+ 
+void CreateSchVizPages(TMonService2* mon, const TString& path, const TString& dataUrl) { 
+    // used external components 
+    SCHLAB_STATIC_FILE("schlab/js/d3-tip-0.8.0-alpha.1.js", JAVASCRIPT); 
+ 
+    // schviz static files 
+    SCHLAB_STATIC_FILE("schlab/css/schviz.css", CSS); 
+    SCHLAB_STATIC_FILE("schlab/js/schviz.js", JAVASCRIPT); 
+ 
+    // schviz page itself 
+    mon->Register(new TSchVizMonPage(path, dataUrl)); 
+} 
+ 
+#undef SCHLAB_STATIC_FILE 
+ 
+} 
diff --git a/ydb/library/schlab/mon/mon.h b/ydb/library/schlab/mon/mon.h
index 82d17d334c..fe2b4185b8 100644
--- a/ydb/library/schlab/mon/mon.h
+++ b/ydb/library/schlab/mon/mon.h
@@ -1,11 +1,11 @@
-#pragma once
-
+#pragma once 
+ 
 #include <library/cpp/monlib/service/monservice.h>
-
-namespace NKikimr {
-
-void CreateSchLabCommonPages(NMonitoring::TMonService2* mon);
-void CreateSchArmPages(NMonitoring::TMonService2* mon, const TString& path, const TString& schVizUrl);
-void CreateSchVizPages(NMonitoring::TMonService2* mon, const TString& path, const TString& dataUrl);
-
-} // namespace NKikimr
+ 
+namespace NKikimr { 
+ 
+void CreateSchLabCommonPages(NMonitoring::TMonService2* mon); 
+void CreateSchArmPages(NMonitoring::TMonService2* mon, const TString& path, const TString& schVizUrl); 
+void CreateSchVizPages(NMonitoring::TMonService2* mon, const TString& path, const TString& dataUrl); 
+ 
+} // namespace NKikimr 
diff --git a/ydb/library/schlab/mon/static/css/bootstrap.min.css b/ydb/library/schlab/mon/static/css/bootstrap.min.css
index f602cacbf8..361830c990 100644
--- a/ydb/library/schlab/mon/static/css/bootstrap.min.css
+++ b/ydb/library/schlab/mon/static/css/bootstrap.min.css
@@ -1,9 +1,9 @@
-/*!
- * Bootstrap v3.0.2 by @fat and @mdo
- * Copyright 2013 Twitter, Inc.
- * Licensed under http://www.apache.org/licenses/LICENSE-2.0
- *
- * Designed and built with all the love in the world by @mdo and @fat.
- */
-
-/*! normalize.css v2.1.3 | MIT License | git.io/normalize */article,aside,details,figcaption,figure,footer,header,hgroup,main,nav,section,summary{display:block}audio,canvas,video{display:inline-block}audio:not([controls]){display:none;height:0}[hidden],template{display:none}html{font-family:sans-serif;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%}body{margin:0}a{background:transparent}a:focus{outline:thin dotted}a:active,a:hover{outline:0}h1{margin:.67em 0;font-size:2em}abbr[title]{border-bottom:1px dotted}b,strong{font-weight:bold}dfn{font-style:italic}hr{height:0;-moz-box-sizing:content-box;box-sizing:content-box}mark{color:#000;background:#ff0}code,kbd,pre,samp{font-family:monospace,serif;font-size:1em}pre{white-space:pre-wrap}q{quotes:"\201C" "\201D" "\2018" "\2019"}small{font-size:80%}sub,sup{position:relative;font-size:75%;line-height:0;vertical-align:baseline}sup{top:-0.5em}sub{bottom:-0.25em}img{border:0}svg:not(:root){overflow:hidden}figure{margin:0}fieldset{padding:.35em .625em .75em;margin:0 2px;border:1px solid #c0c0c0}legend{padding:0;border:0}button,input,select,textarea{margin:0;font-family:inherit;font-size:100%}button,input{line-height:normal}button,select{text-transform:none}button,html input[type="button"],input[type="reset"],input[type="submit"]{cursor:pointer;-webkit-appearance:button}button[disabled],html 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diff --git a/ydb/library/schlab/mon/static/css/scharm.css b/ydb/library/schlab/mon/static/css/scharm.css
index defca84424..84432079f7 100644
--- a/ydb/library/schlab/mon/static/css/scharm.css
+++ b/ydb/library/schlab/mon/static/css/scharm.css
@@ -1,35 +1,35 @@
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diff --git a/ydb/library/schlab/mon/static/css/schviz.css b/ydb/library/schlab/mon/static/css/schviz.css
index eab7192656..926b232f7d 100644
--- a/ydb/library/schlab/mon/static/css/schviz.css
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-    color: steelblue;
-    text-decoration: none;
-}
-
-a:hover {
-    text-decoration: underline;
-}
-
-
+html,body,#wrapper { 
+    width: 100%; 
+    height: 100%; 
+    margin: 0px; 
+} 
+ 
+body { 
+    font: 14px Helvetica Neue; 
+    text-rendering: optimizeLegibility; 
+    margin-top: 1em; 
+    overflow-y: scroll; 
+} 
+ 
+.chart { 
+    font-family: Arial, sans-serif; 
+    font-size: 12px; 
+} 
+ 
+rect.zoom-panel { 
+    /*cursor: ew-resize;*/ 
+    fill: none; 
+    pointer-events: all; 
+} 
+ 
+.axis path,.axis line { 
+    fill: none; 
+    stroke: #000; 
+    shape-rendering: crispEdges; 
+} 
+ 
+.axis.y { 
+    font-size: 16px; 
+    cursor: ns-resize; 
+} 
+ 
+.axis.x { 
+    font-size: 16px; 
+} 
+ 
+#ruler { 
+    text-anchor: middle; 
+    alignment-baseline: before-edge; 
+    font-size: 16px; 
+    font-family: sans-serif; 
+    pointer-events: none; 
+} 
+ 
+.d3-tip { 
+    line-height: 1; 
+    font-weight: bold; 
+    padding: 12px; 
+    background: rgba(0, 0, 0, 0.8); 
+    color: #fff; 
+    border-radius: 2px; 
+} 
+ 
+/* Creates a small triangle extender for the tooltip */ 
+.d3-tip:after { 
+    box-sizing: border-box; 
+    display: inline; 
+    font-size: 10px; 
+    width: 100%; 
+    line-height: 1; 
+    color: rgba(0, 0, 0, 0.8); 
+    content: "\25BC"; 
+    position: absolute; 
+    text-align: center; 
+} 
+ 
+/* Style northward tooltips differently */ 
+.d3-tip.n:after { 
+    margin: -1px 0 0 0; 
+    top: 100%; 
+    left: 0; 
+} 
+ 
+.d3-tip table { 
+    border: 0px; 
+} 
+ 
+td.tip-heading { 
+    text-align: center; 
+} 
+ 
+td.tip-key { 
+    text-align: right; 
+} 
+ 
+td.tip-value { 
+    text-align: left; 
+} 
+ 
+.cbs-idle { 
+    fill: #eaeaea; 
+} 
+ 
+.cbs-active { 
+    fill: #c4ffc4; 
+} 
+ 
+.cbs-running { 
+    fill: #6aff6a; 
+} 
+ 
+.cbs-depleted { 
+    fill: #f9dccb; 
+} 
+ 
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+    fill: #ffffff; 
+} 
+ 
+.req-real { 
+    fill: #77a7ff; 
+} 
+ 
+.req-real-hover { 
+    fill: #90c0ff; 
+} 
+ 
+.req-est { 
+    fill: #5178bd; 
+    pointer-events: none; 
+} 
+ 
+.req-est-hover { 
+    fill: #80b0ee; 
+    pointer-events: none; 
+} 
+ 
+.req-kind { 
+    fill: #ce3a3a; 
+    pointer-events: none; 
+} 
+ 
+.arrow-arrival { 
+    stroke-width:1; 
+    stroke:#000; 
+} 
+ 
+.arrow-arrival-hover { 
+    stroke-width:3; 
+    stroke:#333; 
+} 
+ 
+.arrow-deadline { 
+    stroke-width:1; 
+    stroke:#000; 
+} 
+ 
+/* for arrowhead marker */ 
+#arrow { 
+    stroke-width:1; 
+    stroke-dasharray:0; 
+} 
+ 
+a { 
+    color: steelblue; 
+    text-decoration: none; 
+} 
+ 
+a:hover { 
+    text-decoration: underline; 
+} 
+ 
+ 
diff --git a/ydb/library/schlab/mon/static/js/bootstrap.min.js b/ydb/library/schlab/mon/static/js/bootstrap.min.js
index 80e40418f2..175d50353d 100644
--- a/ydb/library/schlab/mon/static/js/bootstrap.min.js
+++ b/ydb/library/schlab/mon/static/js/bootstrap.min.js
@@ -1,9 +1,9 @@
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- * Copyright 2013 Twitter, Inc.
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- *
- * Designed and built with all the love in the world by @mdo and @fat.
- */
-
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+ * Bootstrap v3.0.2 by @fat and @mdo 
+ * Copyright 2013 Twitter, Inc. 
+ * Licensed under http://www.apache.org/licenses/LICENSE-2.0 
+ * 
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+ */ 
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diff --git a/ydb/library/schlab/mon/static/js/d3-tip-0.8.0-alpha.1.js b/ydb/library/schlab/mon/static/js/d3-tip-0.8.0-alpha.1.js
index ad3a6c0d19..2b2e61ad4c 100644
--- a/ydb/library/schlab/mon/static/js/d3-tip-0.8.0-alpha.1.js
+++ b/ydb/library/schlab/mon/static/js/d3-tip-0.8.0-alpha.1.js
@@ -1,352 +1,352 @@
-/**
- * d3.tip
- * Copyright (c) 2013 Justin Palmer
- *
- * Tooltips for d3.js SVG visualizations
- */
-// eslint-disable-next-line no-extra-semi
-;(function(root, factory) {
-  if (typeof define === 'function' && define.amd) {
-    // AMD. Register as an anonymous module with d3 as a dependency.
-    define([
-      'd3-collection',
-      'd3-selection'
-    ], factory)
-  } else if (typeof module === 'object' && module.exports) {
-    /* eslint-disable global-require */
-    // CommonJS
-    var d3Collection = require('d3-collection'),
-        d3Selection = require('d3-selection')
-    module.exports = factory(d3Collection, d3Selection)
-    /* eslint-enable global-require */
-  } else {
-    // Browser global.
-    var d3 = root.d3
-    // eslint-disable-next-line no-param-reassign
-    root.d3.tip = factory(d3, d3)
-  }
-}(this, function(d3Collection, d3Selection) {
-  // Public - contructs a new tooltip
-  //
-  // Returns a tip
-  return function() {
-    var direction   = d3TipDirection,
-        offset      = d3TipOffset,
-        html        = d3TipHTML,
-        rootElement = document.body,
-        node        = initNode(),
-        svg         = null,
-        point       = null,
-        target      = null
-
-    function tip(vis) {
-      svg = getSVGNode(vis)
-      if (!svg) return
-      point = svg.createSVGPoint()
-      rootElement.appendChild(node)
-    }
-
-    // Public - show the tooltip on the screen
-    //
-    // Returns a tip
-    tip.show = function() {
-      var args = Array.prototype.slice.call(arguments)
-      if (args[args.length - 1] instanceof SVGElement) target = args.pop()
-
-      var content = html.apply(this, args),
-          poffset = offset.apply(this, args),
-          dir     = direction.apply(this, args),
-          nodel   = getNodeEl(),
-          i       = directions.length,
-          coords,
-          scrollTop  = document.documentElement.scrollTop ||
-            rootElement.scrollTop,
-          scrollLeft = document.documentElement.scrollLeft ||
-            rootElement.scrollLeft
-
-      nodel.html(content)
-        .style('opacity', 1).style('pointer-events', 'all')
-
-      while (i--) nodel.classed(directions[i], false)
-      coords = directionCallbacks.get(dir).apply(this)
-      nodel.classed(dir, true)
-        .style('top', (coords.top + poffset[0]) + scrollTop + 'px')
-        .style('left', (coords.left + poffset[1]) + scrollLeft + 'px')
-
-      return tip
-    }
-
-    // Public - hide the tooltip
-    //
-    // Returns a tip
-    tip.hide = function() {
-      var nodel = getNodeEl()
-      nodel.style('opacity', 0).style('pointer-events', 'none')
-      return tip
-    }
-
-    // Public: Proxy attr calls to the d3 tip container.
-    // Sets or gets attribute value.
-    //
-    // n - name of the attribute
-    // v - value of the attribute
-    //
-    // Returns tip or attribute value
-    // eslint-disable-next-line no-unused-vars
-    tip.attr = function(n, v) {
-      if (arguments.length < 2 && typeof n === 'string') {
-        return getNodeEl().attr(n)
-      }
-
-      var args =  Array.prototype.slice.call(arguments)
-      d3Selection.selection.prototype.attr.apply(getNodeEl(), args)
-      return tip
-    }
-
-    // Public: Proxy style calls to the d3 tip container.
-    // Sets or gets a style value.
-    //
-    // n - name of the property
-    // v - value of the property
-    //
-    // Returns tip or style property value
-    // eslint-disable-next-line no-unused-vars
-    tip.style = function(n, v) {
-      if (arguments.length < 2 && typeof n === 'string') {
-        return getNodeEl().style(n)
-      }
-
-      var args = Array.prototype.slice.call(arguments)
-      d3Selection.selection.prototype.style.apply(getNodeEl(), args)
-      return tip
-    }
-
-    // Public: Set or get the direction of the tooltip
-    //
-    // v - One of n(north), s(south), e(east), or w(west), nw(northwest),
-    //     sw(southwest), ne(northeast) or se(southeast)
-    //
-    // Returns tip or direction
-    tip.direction = function(v) {
-      if (!arguments.length) return direction
-      direction = v == null ? v : functor(v)
-
-      return tip
-    }
-
-    // Public: Sets or gets the offset of the tip
-    //
-    // v - Array of [x, y] offset
-    //
-    // Returns offset or
-    tip.offset = function(v) {
-      if (!arguments.length) return offset
-      offset = v == null ? v : functor(v)
-
-      return tip
-    }
-
-    // Public: sets or gets the html value of the tooltip
-    //
-    // v - String value of the tip
-    //
-    // Returns html value or tip
-    tip.html = function(v) {
-      if (!arguments.length) return html
-      html = v == null ? v : functor(v)
-
-      return tip
-    }
-
-    // Public: sets or gets the root element anchor of the tooltip
-    //
-    // v - root element of the tooltip
-    //
-    // Returns root node of tip
-    tip.rootElement = function(v) {
-      if (!arguments.length) return rootElement
-      rootElement = v == null ? v : functor(v)
-
-      return tip
-    }
-
-    // Public: destroys the tooltip and removes it from the DOM
-    //
-    // Returns a tip
-    tip.destroy = function() {
-      if (node) {
-        getNodeEl().remove()
-        node = null
-      }
-      return tip
-    }
-
-    function d3TipDirection() { return 'n' }
-    function d3TipOffset() { return [0, 0] }
-    function d3TipHTML() { return ' ' }
-
-    var directionCallbacks = d3Collection.map({
-          n:  directionNorth,
-          s:  directionSouth,
-          e:  directionEast,
-          w:  directionWest,
-          nw: directionNorthWest,
-          ne: directionNorthEast,
-          sw: directionSouthWest,
-          se: directionSouthEast
-        }),
-        directions = directionCallbacks.keys()
-
-    function directionNorth() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.n.y - node.offsetHeight,
-        left: bbox.n.x - node.offsetWidth / 2
-      }
-    }
-
-    function directionSouth() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.s.y,
-        left: bbox.s.x - node.offsetWidth / 2
-      }
-    }
-
-    function directionEast() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.e.y - node.offsetHeight / 2,
-        left: bbox.e.x
-      }
-    }
-
-    function directionWest() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.w.y - node.offsetHeight / 2,
-        left: bbox.w.x - node.offsetWidth
-      }
-    }
-
-    function directionNorthWest() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.nw.y - node.offsetHeight,
-        left: bbox.nw.x - node.offsetWidth
-      }
-    }
-
-    function directionNorthEast() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.ne.y - node.offsetHeight,
-        left: bbox.ne.x
-      }
-    }
-
-    function directionSouthWest() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.sw.y,
-        left: bbox.sw.x - node.offsetWidth
-      }
-    }
-
-    function directionSouthEast() {
-      var bbox = getScreenBBox()
-      return {
-        top:  bbox.se.y,
-        left: bbox.se.x
-      }
-    }
-
-    function initNode() {
-      var div = d3Selection.select(document.createElement('div'))
-      div
-        .style('position', 'absolute')
-        .style('top', 0)
-        .style('opacity', 0)
-        .style('pointer-events', 'none')
-        .style('box-sizing', 'border-box')
-
-      return div.node()
-    }
-
-    function getSVGNode(element) {
-      var svgNode = element.node()
-      if (!svgNode) return null
-      if (svgNode.tagName.toLowerCase() === 'svg') return svgNode
-      return svgNode.ownerSVGElement
-    }
-
-    function getNodeEl() {
-      if (node == null) {
-        node = initNode()
-        // re-add node to DOM
-        rootElement.appendChild(node)
-      }
-      return d3Selection.select(node)
-    }
-
-    // Private - gets the screen coordinates of a shape
-    //
-    // Given a shape on the screen, will return an SVGPoint for the directions
-    // n(north), s(south), e(east), w(west), ne(northeast), se(southeast),
-    // nw(northwest), sw(southwest).
-    //
-    //    +-+-+
-    //    |   |
-    //    +   +
-    //    |   |
-    //    +-+-+
-    //
-    // Returns an Object {n, s, e, w, nw, sw, ne, se}
-    function getScreenBBox() {
-      var targetel   = target || d3Selection.event.target
-
-      while (targetel.getScreenCTM == null && targetel.parentNode == null) {
-        targetel = targetel.parentNode
-      }
-
-      var bbox       = {},
-          matrix     = targetel.getScreenCTM(),
-          tbbox      = targetel.getBBox(),
-          width      = tbbox.width,
-          height     = tbbox.height,
-          x          = tbbox.x,
-          y          = tbbox.y
-
-      point.x = x
-      point.y = y
-      bbox.nw = point.matrixTransform(matrix)
-      point.x += width
-      bbox.ne = point.matrixTransform(matrix)
-      point.y += height
-      bbox.se = point.matrixTransform(matrix)
-      point.x -= width
-      bbox.sw = point.matrixTransform(matrix)
-      point.y -= height / 2
-      bbox.w = point.matrixTransform(matrix)
-      point.x += width
-      bbox.e = point.matrixTransform(matrix)
-      point.x -= width / 2
-      point.y -= height / 2
-      bbox.n = point.matrixTransform(matrix)
-      point.y += height
-      bbox.s = point.matrixTransform(matrix)
-
-      return bbox
-    }
-
-    // Private - replace D3JS 3.X d3.functor() function
-    function functor(v) {
-      return typeof v === 'function' ? v : function() {
-        return v
-      }
-    }
-
-    return tip
-  }
-// eslint-disable-next-line semi
-}));
+/** 
+ * d3.tip 
+ * Copyright (c) 2013 Justin Palmer 
+ * 
+ * Tooltips for d3.js SVG visualizations 
+ */ 
+// eslint-disable-next-line no-extra-semi 
+;(function(root, factory) { 
+  if (typeof define === 'function' && define.amd) { 
+    // AMD. Register as an anonymous module with d3 as a dependency. 
+    define([ 
+      'd3-collection', 
+      'd3-selection' 
+    ], factory) 
+  } else if (typeof module === 'object' && module.exports) { 
+    /* eslint-disable global-require */ 
+    // CommonJS 
+    var d3Collection = require('d3-collection'), 
+        d3Selection = require('d3-selection') 
+    module.exports = factory(d3Collection, d3Selection) 
+    /* eslint-enable global-require */ 
+  } else { 
+    // Browser global. 
+    var d3 = root.d3 
+    // eslint-disable-next-line no-param-reassign 
+    root.d3.tip = factory(d3, d3) 
+  } 
+}(this, function(d3Collection, d3Selection) { 
+  // Public - contructs a new tooltip 
+  // 
+  // Returns a tip 
+  return function() { 
+    var direction   = d3TipDirection, 
+        offset      = d3TipOffset, 
+        html        = d3TipHTML, 
+        rootElement = document.body, 
+        node        = initNode(), 
+        svg         = null, 
+        point       = null, 
+        target      = null 
+ 
+    function tip(vis) { 
+      svg = getSVGNode(vis) 
+      if (!svg) return 
+      point = svg.createSVGPoint() 
+      rootElement.appendChild(node) 
+    } 
+ 
+    // Public - show the tooltip on the screen 
+    // 
+    // Returns a tip 
+    tip.show = function() { 
+      var args = Array.prototype.slice.call(arguments) 
+      if (args[args.length - 1] instanceof SVGElement) target = args.pop() 
+ 
+      var content = html.apply(this, args), 
+          poffset = offset.apply(this, args), 
+          dir     = direction.apply(this, args), 
+          nodel   = getNodeEl(), 
+          i       = directions.length, 
+          coords, 
+          scrollTop  = document.documentElement.scrollTop || 
+            rootElement.scrollTop, 
+          scrollLeft = document.documentElement.scrollLeft || 
+            rootElement.scrollLeft 
+ 
+      nodel.html(content) 
+        .style('opacity', 1).style('pointer-events', 'all') 
+ 
+      while (i--) nodel.classed(directions[i], false) 
+      coords = directionCallbacks.get(dir).apply(this) 
+      nodel.classed(dir, true) 
+        .style('top', (coords.top + poffset[0]) + scrollTop + 'px') 
+        .style('left', (coords.left + poffset[1]) + scrollLeft + 'px') 
+ 
+      return tip 
+    } 
+ 
+    // Public - hide the tooltip 
+    // 
+    // Returns a tip 
+    tip.hide = function() { 
+      var nodel = getNodeEl() 
+      nodel.style('opacity', 0).style('pointer-events', 'none') 
+      return tip 
+    } 
+ 
+    // Public: Proxy attr calls to the d3 tip container. 
+    // Sets or gets attribute value. 
+    // 
+    // n - name of the attribute 
+    // v - value of the attribute 
+    // 
+    // Returns tip or attribute value 
+    // eslint-disable-next-line no-unused-vars 
+    tip.attr = function(n, v) { 
+      if (arguments.length < 2 && typeof n === 'string') { 
+        return getNodeEl().attr(n) 
+      } 
+ 
+      var args =  Array.prototype.slice.call(arguments) 
+      d3Selection.selection.prototype.attr.apply(getNodeEl(), args) 
+      return tip 
+    } 
+ 
+    // Public: Proxy style calls to the d3 tip container. 
+    // Sets or gets a style value. 
+    // 
+    // n - name of the property 
+    // v - value of the property 
+    // 
+    // Returns tip or style property value 
+    // eslint-disable-next-line no-unused-vars 
+    tip.style = function(n, v) { 
+      if (arguments.length < 2 && typeof n === 'string') { 
+        return getNodeEl().style(n) 
+      } 
+ 
+      var args = Array.prototype.slice.call(arguments) 
+      d3Selection.selection.prototype.style.apply(getNodeEl(), args) 
+      return tip 
+    } 
+ 
+    // Public: Set or get the direction of the tooltip 
+    // 
+    // v - One of n(north), s(south), e(east), or w(west), nw(northwest), 
+    //     sw(southwest), ne(northeast) or se(southeast) 
+    // 
+    // Returns tip or direction 
+    tip.direction = function(v) { 
+      if (!arguments.length) return direction 
+      direction = v == null ? v : functor(v) 
+ 
+      return tip 
+    } 
+ 
+    // Public: Sets or gets the offset of the tip 
+    // 
+    // v - Array of [x, y] offset 
+    // 
+    // Returns offset or 
+    tip.offset = function(v) { 
+      if (!arguments.length) return offset 
+      offset = v == null ? v : functor(v) 
+ 
+      return tip 
+    } 
+ 
+    // Public: sets or gets the html value of the tooltip 
+    // 
+    // v - String value of the tip 
+    // 
+    // Returns html value or tip 
+    tip.html = function(v) { 
+      if (!arguments.length) return html 
+      html = v == null ? v : functor(v) 
+ 
+      return tip 
+    } 
+ 
+    // Public: sets or gets the root element anchor of the tooltip 
+    // 
+    // v - root element of the tooltip 
+    // 
+    // Returns root node of tip 
+    tip.rootElement = function(v) { 
+      if (!arguments.length) return rootElement 
+      rootElement = v == null ? v : functor(v) 
+ 
+      return tip 
+    } 
+ 
+    // Public: destroys the tooltip and removes it from the DOM 
+    // 
+    // Returns a tip 
+    tip.destroy = function() { 
+      if (node) { 
+        getNodeEl().remove() 
+        node = null 
+      } 
+      return tip 
+    } 
+ 
+    function d3TipDirection() { return 'n' } 
+    function d3TipOffset() { return [0, 0] } 
+    function d3TipHTML() { return ' ' } 
+ 
+    var directionCallbacks = d3Collection.map({ 
+          n:  directionNorth, 
+          s:  directionSouth, 
+          e:  directionEast, 
+          w:  directionWest, 
+          nw: directionNorthWest, 
+          ne: directionNorthEast, 
+          sw: directionSouthWest, 
+          se: directionSouthEast 
+        }), 
+        directions = directionCallbacks.keys() 
+ 
+    function directionNorth() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.n.y - node.offsetHeight, 
+        left: bbox.n.x - node.offsetWidth / 2 
+      } 
+    } 
+ 
+    function directionSouth() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.s.y, 
+        left: bbox.s.x - node.offsetWidth / 2 
+      } 
+    } 
+ 
+    function directionEast() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.e.y - node.offsetHeight / 2, 
+        left: bbox.e.x 
+      } 
+    } 
+ 
+    function directionWest() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.w.y - node.offsetHeight / 2, 
+        left: bbox.w.x - node.offsetWidth 
+      } 
+    } 
+ 
+    function directionNorthWest() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.nw.y - node.offsetHeight, 
+        left: bbox.nw.x - node.offsetWidth 
+      } 
+    } 
+ 
+    function directionNorthEast() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.ne.y - node.offsetHeight, 
+        left: bbox.ne.x 
+      } 
+    } 
+ 
+    function directionSouthWest() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.sw.y, 
+        left: bbox.sw.x - node.offsetWidth 
+      } 
+    } 
+ 
+    function directionSouthEast() { 
+      var bbox = getScreenBBox() 
+      return { 
+        top:  bbox.se.y, 
+        left: bbox.se.x 
+      } 
+    } 
+ 
+    function initNode() { 
+      var div = d3Selection.select(document.createElement('div')) 
+      div 
+        .style('position', 'absolute') 
+        .style('top', 0) 
+        .style('opacity', 0) 
+        .style('pointer-events', 'none') 
+        .style('box-sizing', 'border-box') 
+ 
+      return div.node() 
+    } 
+ 
+    function getSVGNode(element) { 
+      var svgNode = element.node() 
+      if (!svgNode) return null 
+      if (svgNode.tagName.toLowerCase() === 'svg') return svgNode 
+      return svgNode.ownerSVGElement 
+    } 
+ 
+    function getNodeEl() { 
+      if (node == null) { 
+        node = initNode() 
+        // re-add node to DOM 
+        rootElement.appendChild(node) 
+      } 
+      return d3Selection.select(node) 
+    } 
+ 
+    // Private - gets the screen coordinates of a shape 
+    // 
+    // Given a shape on the screen, will return an SVGPoint for the directions 
+    // n(north), s(south), e(east), w(west), ne(northeast), se(southeast), 
+    // nw(northwest), sw(southwest). 
+    // 
+    //    +-+-+ 
+    //    |   | 
+    //    +   + 
+    //    |   | 
+    //    +-+-+ 
+    // 
+    // Returns an Object {n, s, e, w, nw, sw, ne, se} 
+    function getScreenBBox() { 
+      var targetel   = target || d3Selection.event.target 
+ 
+      while (targetel.getScreenCTM == null && targetel.parentNode == null) { 
+        targetel = targetel.parentNode 
+      } 
+ 
+      var bbox       = {}, 
+          matrix     = targetel.getScreenCTM(), 
+          tbbox      = targetel.getBBox(), 
+          width      = tbbox.width, 
+          height     = tbbox.height, 
+          x          = tbbox.x, 
+          y          = tbbox.y 
+ 
+      point.x = x 
+      point.y = y 
+      bbox.nw = point.matrixTransform(matrix) 
+      point.x += width 
+      bbox.ne = point.matrixTransform(matrix) 
+      point.y += height 
+      bbox.se = point.matrixTransform(matrix) 
+      point.x -= width 
+      bbox.sw = point.matrixTransform(matrix) 
+      point.y -= height / 2 
+      bbox.w = point.matrixTransform(matrix) 
+      point.x += width 
+      bbox.e = point.matrixTransform(matrix) 
+      point.x -= width / 2 
+      point.y -= height / 2 
+      bbox.n = point.matrixTransform(matrix) 
+      point.y += height 
+      bbox.s = point.matrixTransform(matrix) 
+ 
+      return bbox 
+    } 
+ 
+    // Private - replace D3JS 3.X d3.functor() function 
+    function functor(v) { 
+      return typeof v === 'function' ? v : function() { 
+        return v 
+      } 
+    } 
+ 
+    return tip 
+  } 
+// eslint-disable-next-line semi 
+})); 
diff --git a/ydb/library/schlab/mon/static/js/d3.v4.min.js b/ydb/library/schlab/mon/static/js/d3.v4.min.js
index 6a2705865c..544c4eb8cd 100644
--- a/ydb/library/schlab/mon/static/js/d3.v4.min.js
+++ b/ydb/library/schlab/mon/static/js/d3.v4.min.js
@@ -1,2 +1,2 @@
-// https://d3js.org Version 4.10.0. Copyright 2017 Mike Bostock.
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3:this.point(this._x2,this._y2),this.point(this._x3,this._y3),this.point(this._x4,this._y4)}},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._x2=t,this._y2=n;break;case 1:this._point=2,this._x3=t,this._y3=n;break;case 2:this._point=3,this._x4=t,this._y4=n,this._context.moveTo((this._x0+4*this._x1+t)/6,(this._y0+4*this._y1+n)/6);break;default:Ga(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}};Ka.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=NaN,this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3;var e=(this._x0+4*this._x1+t)/6,r=(this._y0+4*this._y1+n)/6;this._line?this._context.lineTo(e,r):this._context.moveTo(e,r);break;case 3:this._point=4;default:Ga(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}};tc.prototype={lineStart:function(){this._x=[],this._y=[],this._basis.lineStart()},lineEnd:function(){var t=this._x,n=this._y,e=t.length-1;if(e>0)for(var r,i=t[0],o=n[0],u=t[e]-i,a=n[e]-o,c=-1;++c<=e;)r=c/e,this._basis.point(this._beta*t[c]+(1-this._beta)*(i+r*u),this._beta*n[c]+(1-this._beta)*(o+r*a));this._x=this._y=null,this._basis.lineEnd()},point:function(t,n){this._x.push(+t),this._y.push(+n)}};var Xg=function t(n){function e(t){return 1===n?new Ja(t):new tc(t,n)}return e.beta=function(n){return t(+n)},e}(.85);ec.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x2,this._y2);break;case 3:nc(this,this._x1,this._y1)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2,this._x1=t,this._y1=n;break;case 2:this._point=3;default:nc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var $g=function t(n){function e(t){return new ec(t,n)}return e.tension=function(n){return t(+n)},e}(0);rc.prototype={areaStart:Hg,areaEnd:Hg,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._x5=this._y0=this._y1=this._y2=this._y3=this._y4=this._y5=NaN,this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x3,this._y3),this._context.closePath();break;case 2:this._context.lineTo(this._x3,this._y3),this._context.closePath();break;case 3:this.point(this._x3,this._y3),this.point(this._x4,this._y4),this.point(this._x5,this._y5)}},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._x3=t,this._y3=n;break;case 1:this._point=2,this._context.moveTo(this._x4=t,this._y4=n);break;case 2:this._point=3,this._x5=t,this._y5=n;break;default:nc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Vg=function t(n){function e(t){return new rc(t,n)}return e.tension=function(n){return t(+n)},e}(0);ic.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3,this._line?this._context.lineTo(this._x2,this._y2):this._context.moveTo(this._x2,this._y2);break;case 3:this._point=4;default:nc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Wg=function t(n){function e(t){return new ic(t,n)}return e.tension=function(n){return t(+n)},e}(0);uc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x2,this._y2);break;case 3:this.point(this._x2,this._y2)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){if(t=+t,n=+n,this._point){var e=this._x2-t,r=this._y2-n;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(e*e+r*r,this._alpha))}switch(this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3;default:oc(this,t,n)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Zg=function t(n){function e(t){return n?new uc(t,n):new ec(t,0)}return e.alpha=function(n){return t(+n)},e}(.5);ac.prototype={areaStart:Hg,areaEnd:Hg,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._x5=this._y0=this._y1=this._y2=this._y3=this._y4=this._y5=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x3,this._y3),this._context.closePath();break;case 2:this._context.lineTo(this._x3,this._y3),this._context.closePath();break;case 3:this.point(this._x3,this._y3),this.point(this._x4,this._y4),this.point(this._x5,this._y5)}},point:function(t,n){if(t=+t,n=+n,this._point){var e=this._x2-t,r=this._y2-n;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(e*e+r*r,this._alpha))}switch(this._point){case 0:this._point=1,this._x3=t,this._y3=n;break;case 1:this._point=2,this._context.moveTo(this._x4=t,this._y4=n);break;case 2:this._point=3,this._x5=t,this._y5=n;break;default:oc(this,t,n)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Gg=function t(n){function e(t){return n?new ac(t,n):new rc(t,0)}return e.alpha=function(n){return t(+n)},e}(.5);cc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){if(t=+t,n=+n,this._point){var e=this._x2-t,r=this._y2-n;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(e*e+r*r,this._alpha))}switch(this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3,this._line?this._context.lineTo(this._x2,this._y2):this._context.moveTo(this._x2,this._y2);break;case 3:this._point=4;default:oc(this,t,n)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Jg=function t(n){function e(t){return n?new cc(t,n):new ic(t,0)}return e.alpha=function(n){return t(+n)},e}(.5);sc.prototype={areaStart:Hg,areaEnd:Hg,lineStart:function(){this._point=0},lineEnd:function(){this._point&&this._context.closePath()},point:function(t,n){t=+t,n=+n,this._point?this._context.lineTo(t,n):(this._point=1,this._context.moveTo(t,n))}};dc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=this._t0=NaN,this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x1,this._y1);break;case 3:pc(this,this._t0,hc(this,this._t0))}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){var e=NaN;if(t=+t,n=+n,t!==this._x1||n!==this._y1){switch(this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3,pc(this,hc(this,e=lc(this,t,n)),e);break;default:pc(this,this._t0,e=lc(this,t,n))}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n,this._t0=e}}},(vc.prototype=Object.create(dc.prototype)).point=function(t,n){dc.prototype.point.call(this,n,t)},_c.prototype={moveTo:function(t,n){this._context.moveTo(n,t)},closePath:function(){this._context.closePath()},lineTo:function(t,n){this._context.lineTo(n,t)},bezierCurveTo:function(t,n,e,r,i,o){this._context.bezierCurveTo(n,t,r,e,o,i)}},yc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x=[],this._y=[]},lineEnd:function(){var t=this._x,n=this._y,e=t.length;if(e)if(this._line?this._context.lineTo(t[0],n[0]):this._context.moveTo(t[0],n[0]),2===e)this._context.lineTo(t[1],n[1]);else for(var r=gc(t),i=gc(n),o=0,u=1;u<e;++o,++u)this._context.bezierCurveTo(r[0][o],i[0][o],r[1][o],i[1][o],t[u],n[u]);(this._line||0!==this._line&&1===e)&&this._context.closePath(),this._line=1-this._line,this._x=this._y=null},point:function(t,n){this._x.push(+t),this._y.push(+n)}};mc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x=this._y=NaN,this._point=0},lineEnd:function(){0<this._t&&this._t<1&&2===this._point&&this._context.lineTo(this._x,this._y),(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line>=0&&(this._t=1-this._t,this._line=1-this._line)},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;default:if(this._t<=0)this._context.lineTo(this._x,n),this._context.lineTo(t,n);else{var e=this._x*(1-this._t)+t*this._t;this._context.lineTo(e,this._y),this._context.lineTo(e,n)}}this._x=t,this._y=n}};var Qg=function(t,n){if((i=t.length)>1)for(var e,r,i,o=1,u=t[n[0]],a=u.length;o<i;++o)for(r=u,u=t[n[o]],e=0;e<a;++e)u[e][1]+=u[e][0]=isNaN(r[e][1])?r[e][0]:r[e][1]},Kg=function(t){for(var n=t.length,e=new Array(n);--n>=0;)e[n]=n;return e},tm=function(t){var n=t.map(bc);return Kg(t).sort(function(t,e){return n[t]-n[e]})},nm=function(t){return function(){return t}};Tc.prototype={constructor:Tc,insert:function(t,n){var e,r,i;if(t){if(n.P=t,n.N=t.N,t.N&&(t.N.P=n),t.N=n,t.R){for(t=t.R;t.L;)t=t.L;t.L=n}else t.R=n;e=t}else this._?(t=Ec(this._),n.P=null,n.N=t,t.P=t.L=n,e=t):(n.P=n.N=null,this._=n,e=null);for(n.L=n.R=null,n.U=e,n.C=!0,t=n;e&&e.C;)e===(r=e.U).L?(i=r.R)&&i.C?(e.C=i.C=!1,r.C=!0,t=r):(t===e.R&&(Nc(this,e),e=(t=e).U),e.C=!1,r.C=!0,Sc(this,r)):(i=r.L)&&i.C?(e.C=i.C=!1,r.C=!0,t=r):(t===e.L&&(Sc(this,e),e=(t=e).U),e.C=!1,r.C=!0,Nc(this,r)),e=t.U;this._.C=!1},remove:function(t){t.N&&(t.N.P=t.P),t.P&&(t.P.N=t.N),t.N=t.P=null;var n,e,r,i=t.U,o=t.L,u=t.R;if(e=o?u?Ec(u):o:u,i?i.L===t?i.L=e:i.R=e:this._=e,o&&u?(r=e.C,e.C=t.C,e.L=o,o.U=e,e!==u?(i=e.U,e.U=t.U,t=e.R,i.L=t,e.R=u,u.U=e):(e.U=i,i=e,t=e.R)):(r=t.C,t=e),t&&(t.U=i),!r)if(t&&t.C)t.C=!1;else{do{if(t===this._)break;if(t===i.L){if((n=i.R).C&&(n.C=!1,i.C=!0,Nc(this,i),n=i.R),n.L&&n.L.C||n.R&&n.R.C){n.R&&n.R.C||(n.L.C=!1,n.C=!0,Sc(this,n),n=i.R),n.C=i.C,i.C=n.R.C=!1,Nc(this,i),t=this._;break}}else if((n=i.L).C&&(n.C=!1,i.C=!0,Sc(this,i),n=i.L),n.L&&n.L.C||n.R&&n.R.C){n.L&&n.L.C||(n.R.C=!1,n.C=!0,Nc(this,n),n=i.L),n.C=i.C,i.C=n.L.C=!1,Sc(this,i),t=this._;break}n.C=!0,t=i,i=i.U}while(!t.C);t&&(t.C=!1)}}};var em,rm,im,om,um,am=[],cm=[],sm=1e-6,fm=1e-12;Kc.prototype={constructor:Kc,polygons:function(){var t=this.edges;return this.cells.map(function(n){var e=n.halfedges.map(function(e){return Dc(n,t[e])});return e.data=n.site.data,e})},triangles:function(){var t=[],n=this.edges;return this.cells.forEach(function(e,r){if(o=(i=e.halfedges).length)for(var i,o,u,a=e.site,c=-1,s=n[i[o-1]],f=s.left===a?s.right:s.left;++c<o;)u=f,f=(s=n[i[c]]).left===a?s.right:s.left,u&&f&&r<u.index&&r<f.index&&Jc(a,u,f)<0&&t.push([a.data,u.data,f.data])}),t},links:function(){return this.edges.filter(function(t){return t.right}).map(function(t){return{source:t.left.data,target:t.right.data}})},find:function(t,n,e){for(var r,i,o=this,u=o._found||0,a=o.cells.length;!(i=o.cells[u]);)if(++u>=a)return null;var 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3:this._point=4;default:Ga(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}};tc.prototype={lineStart:function(){this._x=[],this._y=[],this._basis.lineStart()},lineEnd:function(){var t=this._x,n=this._y,e=t.length-1;if(e>0)for(var r,i=t[0],o=n[0],u=t[e]-i,a=n[e]-o,c=-1;++c<=e;)r=c/e,this._basis.point(this._beta*t[c]+(1-this._beta)*(i+r*u),this._beta*n[c]+(1-this._beta)*(o+r*a));this._x=this._y=null,this._basis.lineEnd()},point:function(t,n){this._x.push(+t),this._y.push(+n)}};var Xg=function t(n){function e(t){return 1===n?new Ja(t):new tc(t,n)}return e.beta=function(n){return t(+n)},e}(.85);ec.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x2,this._y2);break;case 3:nc(this,this._x1,this._y1)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2,this._x1=t,this._y1=n;break;case 2:this._point=3;default:nc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var $g=function t(n){function e(t){return new ec(t,n)}return e.tension=function(n){return t(+n)},e}(0);rc.prototype={areaStart:Hg,areaEnd:Hg,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._x5=this._y0=this._y1=this._y2=this._y3=this._y4=this._y5=NaN,this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x3,this._y3),this._context.closePath();break;case 2:this._context.lineTo(this._x3,this._y3),this._context.closePath();break;case 3:this.point(this._x3,this._y3),this.point(this._x4,this._y4),this.point(this._x5,this._y5)}},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._x3=t,this._y3=n;break;case 1:this._point=2,this._context.moveTo(this._x4=t,this._y4=n);break;case 2:this._point=3,this._x5=t,this._y5=n;break;default:nc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Vg=function t(n){function e(t){return new rc(t,n)}return e.tension=function(n){return t(+n)},e}(0);ic.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3,this._line?this._context.lineTo(this._x2,this._y2):this._context.moveTo(this._x2,this._y2);break;case 3:this._point=4;default:nc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Wg=function t(n){function e(t){return new ic(t,n)}return e.tension=function(n){return t(+n)},e}(0);uc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x2,this._y2);break;case 3:this.point(this._x2,this._y2)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){if(t=+t,n=+n,this._point){var e=this._x2-t,r=this._y2-n;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(e*e+r*r,this._alpha))}switch(this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3;default:oc(this,t,n)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Zg=function t(n){function e(t){return n?new uc(t,n):new ec(t,0)}return e.alpha=function(n){return t(+n)},e}(.5);ac.prototype={areaStart:Hg,areaEnd:Hg,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._x5=this._y0=this._y1=this._y2=this._y3=this._y4=this._y5=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x3,this._y3),this._context.closePath();break;case 2:this._context.lineTo(this._x3,this._y3),this._context.closePath();break;case 3:this.point(this._x3,this._y3),this.point(this._x4,this._y4),this.point(this._x5,this._y5)}},point:function(t,n){if(t=+t,n=+n,this._point){var e=this._x2-t,r=this._y2-n;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(e*e+r*r,this._alpha))}switch(this._point){case 0:this._point=1,this._x3=t,this._y3=n;break;case 1:this._point=2,this._context.moveTo(this._x4=t,this._y4=n);break;case 2:this._point=3,this._x5=t,this._y5=n;break;default:oc(this,t,n)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var Gg=function t(n){function e(t){return n?new ac(t,n):new rc(t,0)}return e.alpha=function(n){return 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n?new cc(t,n):new ic(t,0)}return e.alpha=function(n){return t(+n)},e}(.5);sc.prototype={areaStart:Hg,areaEnd:Hg,lineStart:function(){this._point=0},lineEnd:function(){this._point&&this._context.closePath()},point:function(t,n){t=+t,n=+n,this._point?this._context.lineTo(t,n):(this._point=1,this._context.moveTo(t,n))}};dc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=this._t0=NaN,this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x1,this._y1);break;case 3:pc(this,this._t0,hc(this,this._t0))}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){var e=NaN;if(t=+t,n=+n,t!==this._x1||n!==this._y1){switch(this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3,pc(this,hc(this,e=lc(this,t,n)),e);break;default:pc(this,this._t0,e=lc(this,t,n))}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n,this._t0=e}}},(vc.prototype=Object.create(dc.prototype)).point=function(t,n){dc.prototype.point.call(this,n,t)},_c.prototype={moveTo:function(t,n){this._context.moveTo(n,t)},closePath:function(){this._context.closePath()},lineTo:function(t,n){this._context.lineTo(n,t)},bezierCurveTo:function(t,n,e,r,i,o){this._context.bezierCurveTo(n,t,r,e,o,i)}},yc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x=[],this._y=[]},lineEnd:function(){var t=this._x,n=this._y,e=t.length;if(e)if(this._line?this._context.lineTo(t[0],n[0]):this._context.moveTo(t[0],n[0]),2===e)this._context.lineTo(t[1],n[1]);else for(var r=gc(t),i=gc(n),o=0,u=1;u<e;++o,++u)this._context.bezierCurveTo(r[0][o],i[0][o],r[1][o],i[1][o],t[u],n[u]);(this._line||0!==this._line&&1===e)&&this._context.closePath(),this._line=1-this._line,this._x=this._y=null},point:function(t,n){this._x.push(+t),this._y.push(+n)}};mc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x=this._y=NaN,this._point=0},lineEnd:function(){0<this._t&&this._t<1&&2===this._point&&this._context.lineTo(this._x,this._y),(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line>=0&&(this._t=1-this._t,this._line=1-this._line)},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;default:if(this._t<=0)this._context.lineTo(this._x,n),this._context.lineTo(t,n);else{var e=this._x*(1-this._t)+t*this._t;this._context.lineTo(e,this._y),this._context.lineTo(e,n)}}this._x=t,this._y=n}};var Qg=function(t,n){if((i=t.length)>1)for(var e,r,i,o=1,u=t[n[0]],a=u.length;o<i;++o)for(r=u,u=t[n[o]],e=0;e<a;++e)u[e][1]+=u[e][0]=isNaN(r[e][1])?r[e][0]:r[e][1]},Kg=function(t){for(var n=t.length,e=new Array(n);--n>=0;)e[n]=n;return e},tm=function(t){var n=t.map(bc);return Kg(t).sort(function(t,e){return n[t]-n[e]})},nm=function(t){return function(){return t}};Tc.prototype={constructor:Tc,insert:function(t,n){var e,r,i;if(t){if(n.P=t,n.N=t.N,t.N&&(t.N.P=n),t.N=n,t.R){for(t=t.R;t.L;)t=t.L;t.L=n}else t.R=n;e=t}else this._?(t=Ec(this._),n.P=null,n.N=t,t.P=t.L=n,e=t):(n.P=n.N=null,this._=n,e=null);for(n.L=n.R=null,n.U=e,n.C=!0,t=n;e&&e.C;)e===(r=e.U).L?(i=r.R)&&i.C?(e.C=i.C=!1,r.C=!0,t=r):(t===e.R&&(Nc(this,e),e=(t=e).U),e.C=!1,r.C=!0,Sc(this,r)):(i=r.L)&&i.C?(e.C=i.C=!1,r.C=!0,t=r):(t===e.L&&(Sc(this,e),e=(t=e).U),e.C=!1,r.C=!0,Nc(this,r)),e=t.U;this._.C=!1},remove:function(t){t.N&&(t.N.P=t.P),t.P&&(t.P.N=t.N),t.N=t.P=null;var n,e,r,i=t.U,o=t.L,u=t.R;if(e=o?u?Ec(u):o:u,i?i.L===t?i.L=e:i.R=e:this._=e,o&&u?(r=e.C,e.C=t.C,e.L=o,o.U=e,e!==u?(i=e.U,e.U=t.U,t=e.R,i.L=t,e.R=u,u.U=e):(e.U=i,i=e,t=e.R)):(r=t.C,t=e),t&&(t.U=i),!r)if(t&&t.C)t.C=!1;else{do{if(t===this._)break;if(t===i.L){if((n=i.R).C&&(n.C=!1,i.C=!0,Nc(this,i),n=i.R),n.L&&n.L.C||n.R&&n.R.C){n.R&&n.R.C||(n.L.C=!1,n.C=!0,Sc(this,n),n=i.R),n.C=i.C,i.C=n.R.C=!1,Nc(this,i),t=this._;break}}else if((n=i.L).C&&(n.C=!1,i.C=!0,Sc(this,i),n=i.L),n.L&&n.L.C||n.R&&n.R.C){n.L&&n.L.C||(n.R.C=!1,n.C=!0,Nc(this,n),n=i.L),n.C=i.C,i.C=n.L.C=!1,Sc(this,i),t=this._;break}n.C=!0,t=i,i=i.U}while(!t.C);t&&(t.C=!1)}}};var em,rm,im,om,um,am=[],cm=[],sm=1e-6,fm=1e-12;Kc.prototype={constructor:Kc,polygons:function(){var t=this.edges;return this.cells.map(function(n){var e=n.halfedges.map(function(e){return Dc(n,t[e])});return e.data=n.site.data,e})},triangles:function(){var t=[],n=this.edges;return this.cells.forEach(function(e,r){if(o=(i=e.halfedges).length)for(var i,o,u,a=e.site,c=-1,s=n[i[o-1]],f=s.left===a?s.right:s.left;++c<o;)u=f,f=(s=n[i[c]]).left===a?s.right:s.left,u&&f&&r<u.index&&r<f.index&&Jc(a,u,f)<0&&t.push([a.data,u.data,f.data])}),t},links:function(){return this.edges.filter(function(t){return t.right}).map(function(t){return{source:t.left.data,target:t.right.data}})},find:function(t,n,e){for(var r,i,o=this,u=o._found||0,a=o.cells.length;!(i=o.cells[u]);)if(++u>=a)return null;var c=t-i.site[0],s=n-i.site[1],f=c*c+s*s;do{i=o.cells[r=u],u=null,i.halfedges.forEach(function(e){var r=o.edges[e],a=r.left;if(a!==i.site&&a||(a=r.right)){var c=t-a[0],s=n-a[1],l=c*c+s*s;l<f&&(f=l,u=a.index)}})}while(null!==u);return o._found=r,null==e||f<=e*e?i.site:null}};var lm=function(t){return function(){return t}};ns.prototype={constructor:ns,scale:function(t){return 1===t?this:new ns(this.k*t,this.x,this.y)},translate:function(t,n){return 0===t&0===n?this:new ns(this.k,this.x+this.k*t,this.y+this.k*n)},apply:function(t){return[t[0]*this.k+this.x,t[1]*this.k+this.y]},applyX:function(t){return t*this.k+this.x},applyY:function(t){return t*this.k+this.y},invert:function(t){return[(t[0]-this.x)/this.k,(t[1]-this.y)/this.k]},invertX:function(t){return(t-this.x)/this.k},invertY:function(t){return(t-this.y)/this.k},rescaleX:function(t){return t.copy().domain(t.range().map(this.invertX,this).map(t.invert,t))},rescaleY:function(t){return 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false}finally{div=null}},assertTagNameNoComments=assert(function(div){div.appendChild(document.createComment(""));return!div.getElementsByTagName("*").length}),assertHrefNotNormalized=assert(function(div){div.innerHTML="<a href='#'></a>";return div.firstChild&&typeof div.firstChild.getAttribute!==strundefined&&div.firstChild.getAttribute("href")==="#"}),assertAttributes=assert(function(div){div.innerHTML="<select></select>";var type=typeof div.lastChild.getAttribute("multiple");return type!=="boolean"&&type!=="string"}),assertUsableClassName=assert(function(div){div.innerHTML="<div class='hidden e'></div><div class='hidden'></div>";if(!div.getElementsByClassName||!div.getElementsByClassName("e").length){return false}div.lastChild.className="e";return div.getElementsByClassName("e").length===2}),assertUsableName=assert(function(div){div.id=expando+0;div.innerHTML="<a name='"+expando+"'></a><div name='"+expando+"'></div>";docElem.insertBefore(div,docElem.firstChild);var pass=document.getElementsByName&&document.getElementsByName(expando).length===2+document.getElementsByName(expando+0).length;assertGetIdNotName=!document.getElementById(expando);docElem.removeChild(div);return pass});try{slice.call(docElem.childNodes,0)[0].nodeType}catch(e){slice=function(i){var elem,results=[];for(;elem=this[i];i++){results.push(elem)}return results}}function Sizzle(selector,context,results,seed){results=results||[];context=context||document;var match,elem,xml,m,nodeType=context.nodeType;if(!selector||typeof selector!=="string"){return results}if(nodeType!==1&&nodeType!==9){return[]}xml=isXML(context);if(!xml&&!seed){if(match=rquickExpr.exec(selector)){if(m=match[1]){if(nodeType===9){elem=context.getElementById(m);if(elem&&elem.parentNode){if(elem.id===m){results.push(elem);return results}}else{return results}}else{if(context.ownerDocument&&(elem=context.ownerDocument.getElementById(m))&&contains(context,elem)&&elem.id===m){results.push(elem);return results}}}else if(match[2]){push.apply(results,slice.call(context.getElementsByTagName(selector),0));return results}else if((m=match[3])&&assertUsableClassName&&context.getElementsByClassName){push.apply(results,slice.call(context.getElementsByClassName(m),0));return results}}}return select(selector.replace(rtrim,"$1"),context,results,seed,xml)}Sizzle.matches=function(expr,elements){return Sizzle(expr,null,null,elements)};Sizzle.matchesSelector=function(elem,expr){return Sizzle(expr,null,null,[elem]).length>0};function createInputPseudo(type){return function(elem){var name=elem.nodeName.toLowerCase();return name==="input"&&elem.type===type}}function createButtonPseudo(type){return function(elem){var name=elem.nodeName.toLowerCase();return(name==="input"||name==="button")&&elem.type===type}}function createPositionalPseudo(fn){return markFunction(function(argument){argument=+argument;return markFunction(function(seed,matches){var j,matchIndexes=fn([],seed.length,argument),i=matchIndexes.length;while(i--){if(seed[j=matchIndexes[i]]){seed[j]=!(matches[j]=seed[j])}}})})}getText=Sizzle.getText=function(elem){var node,ret="",i=0,nodeType=elem.nodeType;if(nodeType){if(nodeType===1||nodeType===9||nodeType===11){if(typeof elem.textContent==="string"){return elem.textContent}else{for(elem=elem.firstChild;elem;elem=elem.nextSibling){ret+=getText(elem)}}}else if(nodeType===3||nodeType===4){return elem.nodeValue}}else{for(;node=elem[i];i++){ret+=getText(node)}}return ret};isXML=Sizzle.isXML=function(elem){var documentElement=elem&&(elem.ownerDocument||elem).documentElement;return documentElement?documentElement.nodeName!=="HTML":false};contains=Sizzle.contains=docElem.contains?function(a,b){var adown=a.nodeType===9?a.documentElement:a,bup=b&&b.parentNode;return a===bup||!!(bup&&bup.nodeType===1&&adown.contains&&adown.contains(bup))}:docElem.compareDocumentPosition?function(a,b){return b&&!!(a.compareDocumentPosition(b)&16)}:function(a,b){while(b=b.parentNode){if(b===a){return true}}return false};Sizzle.attr=function(elem,name){var val,xml=isXML(elem);if(!xml){name=name.toLowerCase()}if(val=Expr.attrHandle[name]){return val(elem)}if(xml||assertAttributes){return elem.getAttribute(name)}val=elem.getAttributeNode(name);return val?typeof elem[name]==="boolean"?elem[name]?name:null:val.specified?val.value:null:null};Expr=Sizzle.selectors={cacheLength:50,createPseudo:markFunction,match:matchExpr,attrHandle:assertHrefNotNormalized?{}:{href:function(elem){return elem.getAttribute("href",2)},type:function(elem){return elem.getAttribute("type")}},find:{ID:assertGetIdNotName?function(id,context,xml){if(typeof context.getElementById!==strundefined&&!xml){var m=context.getElementById(id);return m&&m.parentNode?[m]:[]}}:function(id,context,xml){if(typeof context.getElementById!==strundefined&&!xml){var m=context.getElementById(id);return m?m.id===id||typeof m.getAttributeNode!==strundefined&&m.getAttributeNode("id").value===id?[m]:undefined:[]}},TAG:assertTagNameNoComments?function(tag,context){if(typeof context.getElementsByTagName!==strundefined){return context.getElementsByTagName(tag)}}:function(tag,context){var results=context.getElementsByTagName(tag);if(tag==="*"){var elem,tmp=[],i=0;for(;elem=results[i];i++){if(elem.nodeType===1){tmp.push(elem)}}return tmp}return results},NAME:assertUsableName&&function(tag,context){if(typeof context.getElementsByName!==strundefined){return context.getElementsByName(name)}},CLASS:assertUsableClassName&&function(className,context,xml){if(typeof context.getElementsByClassName!==strundefined&&!xml){return context.getElementsByClassName(className)}}},relative:{">":{dir:"parentNode",first:true}," ":{dir:"parentNode"},"+":{dir:"previousSibling",first:true},"~":{dir:"previousSibling"}},preFilter:{ATTR:function(match){match[1]=match[1].replace(rbackslash,"");match[3]=(match[4]||match[5]||"").replace(rbackslash,"");if(match[2]==="~="){match[3]=" "+match[3]+" "}return match.slice(0,4)},CHILD:function(match){match[1]=match[1].toLowerCase();if(match[1]==="nth"){if(!match[2]){Sizzle.error(match[0])}match[3]=+(match[3]?match[4]+(match[5]||1):2*(match[2]==="even"||match[2]==="odd"));match[4]=+(match[6]+match[7]||match[2]==="odd")}else if(match[2]){Sizzle.error(match[0])}return match},PSEUDO:function(match){var unquoted,excess;if(matchExpr["CHILD"].test(match[0])){return null}if(match[3]){match[2]=match[3]}else if(unquoted=match[4]){if(rpseudo.test(unquoted)&&(excess=tokenize(unquoted,true))&&(excess=unquoted.indexOf(")",unquoted.length-excess)-unquoted.length)){unquoted=unquoted.slice(0,excess);match[0]=match[0].slice(0,excess)}match[2]=unquoted}return match.slice(0,3)}},filter:{ID:assertGetIdNotName?function(id){id=id.replace(rbackslash,"");return function(elem){return elem.getAttribute("id")===id}}:function(id){id=id.replace(rbackslash,"");return function(elem){var node=typeof elem.getAttributeNode!==strundefined&&elem.getAttributeNode("id");return node&&node.value===id}},TAG:function(nodeName){if(nodeName==="*"){return function(){return true}}nodeName=nodeName.replace(rbackslash,"").toLowerCase();return function(elem){return elem.nodeName&&elem.nodeName.toLowerCase()===nodeName}},CLASS:function(className){var pattern=classCache[expando][className+" "];return pattern||(pattern=new RegExp("(^|"+whitespace+")"+className+"("+whitespace+"|$)"))&&classCache(className,function(elem){return pattern.test(elem.className||typeof elem.getAttribute!==strundefined&&elem.getAttribute("class")||"")})},ATTR:function(name,operator,check){return function(elem,context){var result=Sizzle.attr(elem,name);if(result==null){return operator==="!="}if(!operator){return true}result+="";return operator==="="?result===check:operator==="!="?result!==check:operator==="^="?check&&result.indexOf(check)===0:operator==="*="?check&&result.indexOf(check)>-1:operator==="$="?check&&result.substr(result.length-check.length)===check:operator==="~="?(" "+result+" ").indexOf(check)>-1:operator==="|="?result===check||result.substr(0,check.length+1)===check+"-":false}},CHILD:function(type,argument,first,last){if(type==="nth"){return function(elem){var node,diff,parent=elem.parentNode;if(first===1&&last===0){return true}if(parent){diff=0;for(node=parent.firstChild;node;node=node.nextSibling){if(node.nodeType===1){diff++;
-if(elem===node){break}}}}diff-=last;return diff===first||diff%first===0&&diff/first>=0}}return function(elem){var node=elem;switch(type){case"only":case"first":while(node=node.previousSibling){if(node.nodeType===1){return false}}if(type==="first"){return true}node=elem;case"last":while(node=node.nextSibling){if(node.nodeType===1){return false}}return true}}},PSEUDO:function(pseudo,argument){var args,fn=Expr.pseudos[pseudo]||Expr.setFilters[pseudo.toLowerCase()]||Sizzle.error("unsupported pseudo: "+pseudo);if(fn[expando]){return fn(argument)}if(fn.length>1){args=[pseudo,pseudo,"",argument];return Expr.setFilters.hasOwnProperty(pseudo.toLowerCase())?markFunction(function(seed,matches){var idx,matched=fn(seed,argument),i=matched.length;while(i--){idx=indexOf.call(seed,matched[i]);seed[idx]=!(matches[idx]=matched[i])}}):function(elem){return fn(elem,0,args)}}return fn}},pseudos:{not:markFunction(function(selector){var input=[],results=[],matcher=compile(selector.replace(rtrim,"$1"));return matcher[expando]?markFunction(function(seed,matches,context,xml){var elem,unmatched=matcher(seed,null,xml,[]),i=seed.length;while(i--){if(elem=unmatched[i]){seed[i]=!(matches[i]=elem)}}}):function(elem,context,xml){input[0]=elem;matcher(input,null,xml,results);return!results.pop()}}),has:markFunction(function(selector){return function(elem){return Sizzle(selector,elem).length>0}}),contains:markFunction(function(text){return function(elem){return(elem.textContent||elem.innerText||getText(elem)).indexOf(text)>-1}}),enabled:function(elem){return elem.disabled===false},disabled:function(elem){return elem.disabled===true},checked:function(elem){var nodeName=elem.nodeName.toLowerCase();return nodeName==="input"&&!!elem.checked||nodeName==="option"&&!!elem.selected},selected:function(elem){if(elem.parentNode){elem.parentNode.selectedIndex}return elem.selected===true},parent:function(elem){return!Expr.pseudos["empty"](elem)},empty:function(elem){var nodeType;elem=elem.firstChild;while(elem){if(elem.nodeName>"@"||(nodeType=elem.nodeType)===3||nodeType===4){return false}elem=elem.nextSibling}return true},header:function(elem){return rheader.test(elem.nodeName)},text:function(elem){var type,attr;return elem.nodeName.toLowerCase()==="input"&&(type=elem.type)==="text"&&((attr=elem.getAttribute("type"))==null||attr.toLowerCase()===type)},radio:createInputPseudo("radio"),checkbox:createInputPseudo("checkbox"),file:createInputPseudo("file"),password:createInputPseudo("password"),image:createInputPseudo("image"),submit:createButtonPseudo("submit"),reset:createButtonPseudo("reset"),button:function(elem){var name=elem.nodeName.toLowerCase();return name==="input"&&elem.type==="button"||name==="button"},input:function(elem){return rinputs.test(elem.nodeName)},focus:function(elem){var doc=elem.ownerDocument;return elem===doc.activeElement&&(!doc.hasFocus||doc.hasFocus())&&!!(elem.type||elem.href||~elem.tabIndex)},active:function(elem){return elem===elem.ownerDocument.activeElement},first:createPositionalPseudo(function(){return[0]}),last:createPositionalPseudo(function(matchIndexes,length){return[length-1]}),eq:createPositionalPseudo(function(matchIndexes,length,argument){return[argument<0?argument+length:argument]}),even:createPositionalPseudo(function(matchIndexes,length){for(var i=0;i<length;i+=2){matchIndexes.push(i)}return matchIndexes}),odd:createPositionalPseudo(function(matchIndexes,length){for(var i=1;i<length;i+=2){matchIndexes.push(i)}return matchIndexes}),lt:createPositionalPseudo(function(matchIndexes,length,argument){for(var i=argument<0?argument+length:argument;--i>=0;){matchIndexes.push(i)}return matchIndexes}),gt:createPositionalPseudo(function(matchIndexes,length,argument){for(var i=argument<0?argument+length:argument;++i<length;){matchIndexes.push(i)}return matchIndexes})}};function siblingCheck(a,b,ret){if(a===b){return ret}var cur=a.nextSibling;while(cur){if(cur===b){return-1}cur=cur.nextSibling}return 1}sortOrder=docElem.compareDocumentPosition?function(a,b){if(a===b){hasDuplicate=true;return 0}return(!a.compareDocumentPosition||!b.compareDocumentPosition?a.compareDocumentPosition:a.compareDocumentPosition(b)&4)?-1:1}:function(a,b){if(a===b){hasDuplicate=true;return 0}else if(a.sourceIndex&&b.sourceIndex){return a.sourceIndex-b.sourceIndex}var al,bl,ap=[],bp=[],aup=a.parentNode,bup=b.parentNode,cur=aup;if(aup===bup){return siblingCheck(a,b)}else if(!aup){return-1}else if(!bup){return 1}while(cur){ap.unshift(cur);cur=cur.parentNode}cur=bup;while(cur){bp.unshift(cur);cur=cur.parentNode}al=ap.length;bl=bp.length;for(var i=0;i<al&&i<bl;i++){if(ap[i]!==bp[i]){return siblingCheck(ap[i],bp[i])}}return i===al?siblingCheck(a,bp[i],-1):siblingCheck(ap[i],b,1)};[0,0].sort(sortOrder);baseHasDuplicate=!hasDuplicate;Sizzle.uniqueSort=function(results){var elem,duplicates=[],i=1,j=0;hasDuplicate=baseHasDuplicate;results.sort(sortOrder);if(hasDuplicate){for(;elem=results[i];i++){if(elem===results[i-1]){j=duplicates.push(i)}}while(j--){results.splice(duplicates[j],1)}}return results};Sizzle.error=function(msg){throw new Error("Syntax error, unrecognized expression: "+msg)};function tokenize(selector,parseOnly){var matched,match,tokens,type,soFar,groups,preFilters,cached=tokenCache[expando][selector+" "];if(cached){return parseOnly?0:cached.slice(0)}soFar=selector;groups=[];preFilters=Expr.preFilter;while(soFar){if(!matched||(match=rcomma.exec(soFar))){if(match){soFar=soFar.slice(match[0].length)||soFar}groups.push(tokens=[])}matched=false;if(match=rcombinators.exec(soFar)){tokens.push(matched=new Token(match.shift()));soFar=soFar.slice(matched.length);matched.type=match[0].replace(rtrim," ")}for(type in Expr.filter){if((match=matchExpr[type].exec(soFar))&&(!preFilters[type]||(match=preFilters[type](match)))){tokens.push(matched=new Token(match.shift()));soFar=soFar.slice(matched.length);matched.type=type;matched.matches=match}}if(!matched){break}}return parseOnly?soFar.length:soFar?Sizzle.error(selector):tokenCache(selector,groups).slice(0)}function addCombinator(matcher,combinator,base){var dir=combinator.dir,checkNonElements=base&&combinator.dir==="parentNode",doneName=done++;return combinator.first?function(elem,context,xml){while(elem=elem[dir]){if(checkNonElements||elem.nodeType===1){return matcher(elem,context,xml)}}}:function(elem,context,xml){if(!xml){var cache,dirkey=dirruns+" "+doneName+" ",cachedkey=dirkey+cachedruns;while(elem=elem[dir]){if(checkNonElements||elem.nodeType===1){if((cache=elem[expando])===cachedkey){return elem.sizset}else if(typeof cache==="string"&&cache.indexOf(dirkey)===0){if(elem.sizset){return elem}}else{elem[expando]=cachedkey;if(matcher(elem,context,xml)){elem.sizset=true;return elem}elem.sizset=false}}}}else{while(elem=elem[dir]){if(checkNonElements||elem.nodeType===1){if(matcher(elem,context,xml)){return elem}}}}}}function elementMatcher(matchers){return matchers.length>1?function(elem,context,xml){var i=matchers.length;while(i--){if(!matchers[i](elem,context,xml)){return false}}return true}:matchers[0]}function condense(unmatched,map,filter,context,xml){var elem,newUnmatched=[],i=0,len=unmatched.length,mapped=map!=null;for(;i<len;i++){if(elem=unmatched[i]){if(!filter||filter(elem,context,xml)){newUnmatched.push(elem);if(mapped){map.push(i)}}}}return newUnmatched}function setMatcher(preFilter,selector,matcher,postFilter,postFinder,postSelector){if(postFilter&&!postFilter[expando]){postFilter=setMatcher(postFilter)}if(postFinder&&!postFinder[expando]){postFinder=setMatcher(postFinder,postSelector)}return markFunction(function(seed,results,context,xml){var temp,i,elem,preMap=[],postMap=[],preexisting=results.length,elems=seed||multipleContexts(selector||"*",context.nodeType?[context]:context,[]),matcherIn=preFilter&&(seed||!selector)?condense(elems,preMap,preFilter,context,xml):elems,matcherOut=matcher?postFinder||(seed?preFilter:preexisting||postFilter)?[]:results:matcherIn;if(matcher){matcher(matcherIn,matcherOut,context,xml)}if(postFilter){temp=condense(matcherOut,postMap);postFilter(temp,[],context,xml);i=temp.length;while(i--){if(elem=temp[i]){matcherOut[postMap[i]]=!(matcherIn[postMap[i]]=elem)}}}if(seed){if(postFinder||preFilter){if(postFinder){temp=[];i=matcherOut.length;while(i--){if(elem=matcherOut[i]){temp.push(matcherIn[i]=elem)}}postFinder(null,matcherOut=[],temp,xml)}i=matcherOut.length;while(i--){if((elem=matcherOut[i])&&(temp=postFinder?indexOf.call(seed,elem):preMap[i])>-1){seed[temp]=!(results[temp]=elem)}}}}else{matcherOut=condense(matcherOut===results?matcherOut.splice(preexisting,matcherOut.length):matcherOut);if(postFinder){postFinder(null,results,matcherOut,xml)}else{push.apply(results,matcherOut)}}})}function matcherFromTokens(tokens){var checkContext,matcher,j,len=tokens.length,leadingRelative=Expr.relative[tokens[0].type],implicitRelative=leadingRelative||Expr.relative[" "],i=leadingRelative?1:0,matchContext=addCombinator(function(elem){return elem===checkContext},implicitRelative,true),matchAnyContext=addCombinator(function(elem){return indexOf.call(checkContext,elem)>-1},implicitRelative,true),matchers=[function(elem,context,xml){return!leadingRelative&&(xml||context!==outermostContext)||((checkContext=context).nodeType?matchContext(elem,context,xml):matchAnyContext(elem,context,xml))}];for(;i<len;i++){if(matcher=Expr.relative[tokens[i].type]){matchers=[addCombinator(elementMatcher(matchers),matcher)]}else{matcher=Expr.filter[tokens[i].type].apply(null,tokens[i].matches);if(matcher[expando]){j=++i;for(;j<len;j++){if(Expr.relative[tokens[j].type]){break}}return setMatcher(i>1&&elementMatcher(matchers),i>1&&tokens.slice(0,i-1).join("").replace(rtrim,"$1"),matcher,i<j&&matcherFromTokens(tokens.slice(i,j)),j<len&&matcherFromTokens(tokens=tokens.slice(j)),j<len&&tokens.join(""))}matchers.push(matcher)}}return elementMatcher(matchers)}function matcherFromGroupMatchers(elementMatchers,setMatchers){var bySet=setMatchers.length>0,byElement=elementMatchers.length>0,superMatcher=function(seed,context,xml,results,expandContext){var elem,j,matcher,setMatched=[],matchedCount=0,i="0",unmatched=seed&&[],outermost=expandContext!=null,contextBackup=outermostContext,elems=seed||byElement&&Expr.find["TAG"]("*",expandContext&&context.parentNode||context),dirrunsUnique=dirruns+=contextBackup==null?1:Math.E;if(outermost){outermostContext=context!==document&&context;cachedruns=superMatcher.el}for(;(elem=elems[i])!=null;i++){if(byElement&&elem){for(j=0;matcher=elementMatchers[j];j++){if(matcher(elem,context,xml)){results.push(elem);break}}if(outermost){dirruns=dirrunsUnique;cachedruns=++superMatcher.el}}if(bySet){if(elem=!matcher&&elem){matchedCount--}if(seed){unmatched.push(elem)}}}matchedCount+=i;if(bySet&&i!==matchedCount){for(j=0;matcher=setMatchers[j];j++){matcher(unmatched,setMatched,context,xml)}if(seed){if(matchedCount>0){while(i--){if(!(unmatched[i]||setMatched[i])){setMatched[i]=pop.call(results)}}}setMatched=condense(setMatched)}push.apply(results,setMatched);if(outermost&&!seed&&setMatched.length>0&&matchedCount+setMatchers.length>1){Sizzle.uniqueSort(results)}}if(outermost){dirruns=dirrunsUnique;outermostContext=contextBackup}return unmatched};superMatcher.el=0;return bySet?markFunction(superMatcher):superMatcher}compile=Sizzle.compile=function(selector,group){var i,setMatchers=[],elementMatchers=[],cached=compilerCache[expando][selector+" "];if(!cached){if(!group){group=tokenize(selector)}i=group.length;while(i--){cached=matcherFromTokens(group[i]);if(cached[expando]){setMatchers.push(cached)}else{elementMatchers.push(cached)}}cached=compilerCache(selector,matcherFromGroupMatchers(elementMatchers,setMatchers))}return cached};function multipleContexts(selector,contexts,results){var i=0,len=contexts.length;for(;i<len;i++){Sizzle(selector,contexts[i],results)}return results}function select(selector,context,results,seed,xml){var i,tokens,token,type,find,match=tokenize(selector),j=match.length;if(!seed){if(match.length===1){tokens=match[0]=match[0].slice(0);if(tokens.length>2&&(token=tokens[0]).type==="ID"&&context.nodeType===9&&!xml&&Expr.relative[tokens[1].type]){context=Expr.find["ID"](token.matches[0].replace(rbackslash,""),context,xml)[0];if(!context){return results}selector=selector.slice(tokens.shift().length)}for(i=matchExpr["POS"].test(selector)?-1:tokens.length-1;i>=0;i--){token=tokens[i];if(Expr.relative[type=token.type]){break}if(find=Expr.find[type]){if(seed=find(token.matches[0].replace(rbackslash,""),rsibling.test(tokens[0].type)&&context.parentNode||context,xml)){tokens.splice(i,1);selector=seed.length&&tokens.join("");if(!selector){push.apply(results,slice.call(seed,0));return results}break}}}}}compile(selector,match)(seed,context,xml,results,rsibling.test(selector));return results}if(document.querySelectorAll){(function(){var disconnectedMatch,oldSelect=select,rescape=/'|\\/g,rattributeQuotes=/\=[\x20\t\r\n\f]*([^'"\]]*)[\x20\t\r\n\f]*\]/g,rbuggyQSA=[":focus"],rbuggyMatches=[":active"],matches=docElem.matchesSelector||docElem.mozMatchesSelector||docElem.webkitMatchesSelector||docElem.oMatchesSelector||docElem.msMatchesSelector;assert(function(div){div.innerHTML="<select><option selected=''></option></select>";if(!div.querySelectorAll("[selected]").length){rbuggyQSA.push("\\["+whitespace+"*(?:checked|disabled|ismap|multiple|readonly|selected|value)")}if(!div.querySelectorAll(":checked").length){rbuggyQSA.push(":checked")}});assert(function(div){div.innerHTML="<p test=''></p>";if(div.querySelectorAll("[test^='']").length){rbuggyQSA.push("[*^$]="+whitespace+"*(?:\"\"|'')")}div.innerHTML="<input type='hidden'/>";if(!div.querySelectorAll(":enabled").length){rbuggyQSA.push(":enabled",":disabled")}});rbuggyQSA=new 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i===al?siblingCheck(a,bp[i],-1):siblingCheck(ap[i],b,1)};[0,0].sort(sortOrder);baseHasDuplicate=!hasDuplicate;Sizzle.uniqueSort=function(results){var elem,duplicates=[],i=1,j=0;hasDuplicate=baseHasDuplicate;results.sort(sortOrder);if(hasDuplicate){for(;elem=results[i];i++){if(elem===results[i-1]){j=duplicates.push(i)}}while(j--){results.splice(duplicates[j],1)}}return results};Sizzle.error=function(msg){throw new Error("Syntax error, unrecognized expression: "+msg)};function tokenize(selector,parseOnly){var matched,match,tokens,type,soFar,groups,preFilters,cached=tokenCache[expando][selector+" "];if(cached){return parseOnly?0:cached.slice(0)}soFar=selector;groups=[];preFilters=Expr.preFilter;while(soFar){if(!matched||(match=rcomma.exec(soFar))){if(match){soFar=soFar.slice(match[0].length)||soFar}groups.push(tokens=[])}matched=false;if(match=rcombinators.exec(soFar)){tokens.push(matched=new Token(match.shift()));soFar=soFar.slice(matched.length);matched.type=match[0].replace(rtrim," ")}for(type in Expr.filter){if((match=matchExpr[type].exec(soFar))&&(!preFilters[type]||(match=preFilters[type](match)))){tokens.push(matched=new Token(match.shift()));soFar=soFar.slice(matched.length);matched.type=type;matched.matches=match}}if(!matched){break}}return parseOnly?soFar.length:soFar?Sizzle.error(selector):tokenCache(selector,groups).slice(0)}function addCombinator(matcher,combinator,base){var dir=combinator.dir,checkNonElements=base&&combinator.dir==="parentNode",doneName=done++;return combinator.first?function(elem,context,xml){while(elem=elem[dir]){if(checkNonElements||elem.nodeType===1){return matcher(elem,context,xml)}}}:function(elem,context,xml){if(!xml){var cache,dirkey=dirruns+" "+doneName+" ",cachedkey=dirkey+cachedruns;while(elem=elem[dir]){if(checkNonElements||elem.nodeType===1){if((cache=elem[expando])===cachedkey){return elem.sizset}else if(typeof cache==="string"&&cache.indexOf(dirkey)===0){if(elem.sizset){return elem}}else{elem[expando]=cachedkey;if(matcher(elem,context,xml)){elem.sizset=true;return elem}elem.sizset=false}}}}else{while(elem=elem[dir]){if(checkNonElements||elem.nodeType===1){if(matcher(elem,context,xml)){return elem}}}}}}function elementMatcher(matchers){return matchers.length>1?function(elem,context,xml){var i=matchers.length;while(i--){if(!matchers[i](elem,context,xml)){return false}}return true}:matchers[0]}function condense(unmatched,map,filter,context,xml){var elem,newUnmatched=[],i=0,len=unmatched.length,mapped=map!=null;for(;i<len;i++){if(elem=unmatched[i]){if(!filter||filter(elem,context,xml)){newUnmatched.push(elem);if(mapped){map.push(i)}}}}return newUnmatched}function setMatcher(preFilter,selector,matcher,postFilter,postFinder,postSelector){if(postFilter&&!postFilter[expando]){postFilter=setMatcher(postFilter)}if(postFinder&&!postFinder[expando]){postFinder=setMatcher(postFinder,postSelector)}return markFunction(function(seed,results,context,xml){var temp,i,elem,preMap=[],postMap=[],preexisting=results.length,elems=seed||multipleContexts(selector||"*",context.nodeType?[context]:context,[]),matcherIn=preFilter&&(seed||!selector)?condense(elems,preMap,preFilter,context,xml):elems,matcherOut=matcher?postFinder||(seed?preFilter:preexisting||postFilter)?[]:results:matcherIn;if(matcher){matcher(matcherIn,matcherOut,context,xml)}if(postFilter){temp=condense(matcherOut,postMap);postFilter(temp,[],context,xml);i=temp.length;while(i--){if(elem=temp[i]){matcherOut[postMap[i]]=!(matcherIn[postMap[i]]=elem)}}}if(seed){if(postFinder||preFilter){if(postFinder){temp=[];i=matcherOut.length;while(i--){if(elem=matcherOut[i]){temp.push(matcherIn[i]=elem)}}postFinder(null,matcherOut=[],temp,xml)}i=matcherOut.length;while(i--){if((elem=matcherOut[i])&&(temp=postFinder?indexOf.call(seed,elem):preMap[i])>-1){seed[temp]=!(results[temp]=elem)}}}}else{matcherOut=condense(matcherOut===results?matcherOut.splice(preexisting,matcherOut.length):matcherOut);if(postFinder){postFinder(null,results,matcherOut,xml)}else{push.apply(results,matcherOut)}}})}function matcherFromTokens(tokens){var checkContext,matcher,j,len=tokens.length,leadingRelative=Expr.relative[tokens[0].type],implicitRelative=leadingRelative||Expr.relative[" "],i=leadingRelative?1:0,matchContext=addCombinator(function(elem){return elem===checkContext},implicitRelative,true),matchAnyContext=addCombinator(function(elem){return indexOf.call(checkContext,elem)>-1},implicitRelative,true),matchers=[function(elem,context,xml){return!leadingRelative&&(xml||context!==outermostContext)||((checkContext=context).nodeType?matchContext(elem,context,xml):matchAnyContext(elem,context,xml))}];for(;i<len;i++){if(matcher=Expr.relative[tokens[i].type]){matchers=[addCombinator(elementMatcher(matchers),matcher)]}else{matcher=Expr.filter[tokens[i].type].apply(null,tokens[i].matches);if(matcher[expando]){j=++i;for(;j<len;j++){if(Expr.relative[tokens[j].type]){break}}return setMatcher(i>1&&elementMatcher(matchers),i>1&&tokens.slice(0,i-1).join("").replace(rtrim,"$1"),matcher,i<j&&matcherFromTokens(tokens.slice(i,j)),j<len&&matcherFromTokens(tokens=tokens.slice(j)),j<len&&tokens.join(""))}matchers.push(matcher)}}return elementMatcher(matchers)}function matcherFromGroupMatchers(elementMatchers,setMatchers){var bySet=setMatchers.length>0,byElement=elementMatchers.length>0,superMatcher=function(seed,context,xml,results,expandContext){var elem,j,matcher,setMatched=[],matchedCount=0,i="0",unmatched=seed&&[],outermost=expandContext!=null,contextBackup=outermostContext,elems=seed||byElement&&Expr.find["TAG"]("*",expandContext&&context.parentNode||context),dirrunsUnique=dirruns+=contextBackup==null?1:Math.E;if(outermost){outermostContext=context!==document&&context;cachedruns=superMatcher.el}for(;(elem=elems[i])!=null;i++){if(byElement&&elem){for(j=0;matcher=elementMatchers[j];j++){if(matcher(elem,context,xml)){results.push(elem);break}}if(outermost){dirruns=dirrunsUnique;cachedruns=++superMatcher.el}}if(bySet){if(elem=!matcher&&elem){matchedCount--}if(seed){unmatched.push(elem)}}}matchedCount+=i;if(bySet&&i!==matchedCount){for(j=0;matcher=setMatchers[j];j++){matcher(unmatched,setMatched,context,xml)}if(seed){if(matchedCount>0){while(i--){if(!(unmatched[i]||setMatched[i])){setMatched[i]=pop.call(results)}}}setMatched=condense(setMatched)}push.apply(results,setMatched);if(outermost&&!seed&&setMatched.length>0&&matchedCount+setMatchers.length>1){Sizzle.uniqueSort(results)}}if(outermost){dirruns=dirrunsUnique;outermostContext=contextBackup}return unmatched};superMatcher.el=0;return bySet?markFunction(superMatcher):superMatcher}compile=Sizzle.compile=function(selector,group){var i,setMatchers=[],elementMatchers=[],cached=compilerCache[expando][selector+" "];if(!cached){if(!group){group=tokenize(selector)}i=group.length;while(i--){cached=matcherFromTokens(group[i]);if(cached[expando]){setMatchers.push(cached)}else{elementMatchers.push(cached)}}cached=compilerCache(selector,matcherFromGroupMatchers(elementMatchers,setMatchers))}return cached};function multipleContexts(selector,contexts,results){var i=0,len=contexts.length;for(;i<len;i++){Sizzle(selector,contexts[i],results)}return results}function select(selector,context,results,seed,xml){var i,tokens,token,type,find,match=tokenize(selector),j=match.length;if(!seed){if(match.length===1){tokens=match[0]=match[0].slice(0);if(tokens.length>2&&(token=tokens[0]).type==="ID"&&context.nodeType===9&&!xml&&Expr.relative[tokens[1].type]){context=Expr.find["ID"](token.matches[0].replace(rbackslash,""),context,xml)[0];if(!context){return results}selector=selector.slice(tokens.shift().length)}for(i=matchExpr["POS"].test(selector)?-1:tokens.length-1;i>=0;i--){token=tokens[i];if(Expr.relative[type=token.type]){break}if(find=Expr.find[type]){if(seed=find(token.matches[0].replace(rbackslash,""),rsibling.test(tokens[0].type)&&context.parentNode||context,xml)){tokens.splice(i,1);selector=seed.length&&tokens.join("");if(!selector){push.apply(results,slice.call(seed,0));return results}break}}}}}compile(selector,match)(seed,context,xml,results,rsibling.test(selector));return results}if(document.querySelectorAll){(function(){var disconnectedMatch,oldSelect=select,rescape=/'|\\/g,rattributeQuotes=/\=[\x20\t\r\n\f]*([^'"\]]*)[\x20\t\r\n\f]*\]/g,rbuggyQSA=[":focus"],rbuggyMatches=[":active"],matches=docElem.matchesSelector||docElem.mozMatchesSelector||docElem.webkitMatchesSelector||docElem.oMatchesSelector||docElem.msMatchesSelector;assert(function(div){div.innerHTML="<select><option selected=''></option></select>";if(!div.querySelectorAll("[selected]").length){rbuggyQSA.push("\\["+whitespace+"*(?:checked|disabled|ismap|multiple|readonly|selected|value)")}if(!div.querySelectorAll(":checked").length){rbuggyQSA.push(":checked")}});assert(function(div){div.innerHTML="<p test=''></p>";if(div.querySelectorAll("[test^='']").length){rbuggyQSA.push("[*^$]="+whitespace+"*(?:\"\"|'')")}div.innerHTML="<input type='hidden'/>";if(!div.querySelectorAll(":enabled").length){rbuggyQSA.push(":enabled",":disabled")}});rbuggyQSA=new RegExp(rbuggyQSA.join("|"));select=function(selector,context,results,seed,xml){if(!seed&&!xml&&!rbuggyQSA.test(selector)){var groups,i,old=true,nid=expando,newContext=context,newSelector=context.nodeType===9&&selector;if(context.nodeType===1&&context.nodeName.toLowerCase()!=="object"){groups=tokenize(selector);if(old=context.getAttribute("id")){nid=old.replace(rescape,"\\$&")}else{context.setAttribute("id",nid)}nid="[id='"+nid+"'] ";i=groups.length;while(i--){groups[i]=nid+groups[i].join("")}newContext=rsibling.test(selector)&&context.parentNode||context;newSelector=groups.join(",")}if(newSelector){try{push.apply(results,slice.call(newContext.querySelectorAll(newSelector),0));return results}catch(qsaError){}finally{if(!old){context.removeAttribute("id")}}}}return oldSelect(selector,context,results,seed,xml)};if(matches){assert(function(div){disconnectedMatch=matches.call(div,"div");try{matches.call(div,"[test!='']:sizzle");rbuggyMatches.push("!=",pseudos)}catch(e){}});rbuggyMatches=new 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value===undefined?jQuery.text(this):this.empty().append((this[0]&&this[0].ownerDocument||document).createTextNode(value))},null,value,arguments.length)},wrapAll:function(html){if(jQuery.isFunction(html)){return this.each(function(i){jQuery(this).wrapAll(html.call(this,i))})}if(this[0]){var wrap=jQuery(html,this[0].ownerDocument).eq(0).clone(true);if(this[0].parentNode){wrap.insertBefore(this[0])}wrap.map(function(){var elem=this;while(elem.firstChild&&elem.firstChild.nodeType===1){elem=elem.firstChild}return elem}).append(this)}return this},wrapInner:function(html){if(jQuery.isFunction(html)){return this.each(function(i){jQuery(this).wrapInner(html.call(this,i))})}return this.each(function(){var self=jQuery(this),contents=self.contents();if(contents.length){contents.wrapAll(html)}else{self.append(html)}})},wrap:function(html){var isFunction=jQuery.isFunction(html);return this.each(function(i){jQuery(this).wrapAll(isFunction?html.call(this,i):html)})},unwrap:function(){return 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tween}]};function createFxNow(){setTimeout(function(){fxNow=undefined},0);return fxNow=jQuery.now()}function createTweens(animation,props){jQuery.each(props,function(prop,value){var collection=(tweeners[prop]||[]).concat(tweeners["*"]),index=0,length=collection.length;for(;index<length;index++){if(collection[index].call(animation,prop,value)){return}}})}function Animation(elem,properties,options){var result,index=0,tweenerIndex=0,length=animationPrefilters.length,deferred=jQuery.Deferred().always(function(){delete tick.elem}),tick=function(){var currentTime=fxNow||createFxNow(),remaining=Math.max(0,animation.startTime+animation.duration-currentTime),temp=remaining/animation.duration||0,percent=1-temp,index=0,length=animation.tweens.length; 
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props)){props[index]=value[index];specialEasing[index]=easing}}}else{specialEasing[name]=easing}}}jQuery.Animation=jQuery.extend(Animation,{tweener:function(props,callback){if(jQuery.isFunction(props)){callback=props;props=["*"]}else{props=props.split(" ")}var prop,index=0,length=props.length;for(;index<length;index++){prop=props[index];tweeners[prop]=tweeners[prop]||[];tweeners[prop].unshift(callback)}},prefilter:function(callback,prepend){if(prepend){animationPrefilters.unshift(callback)}else{animationPrefilters.push(callback)}}});function defaultPrefilter(elem,props,opts){var 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props)){opts.overflow=[style.overflow,style.overflowX,style.overflowY];if(jQuery.css(elem,"display")==="inline"&&jQuery.css(elem,"float")==="none"){if(!jQuery.support.inlineBlockNeedsLayout||css_defaultDisplay(elem.nodeName)==="inline"){style.display="inline-block"}else{style.zoom=1}}}if(opts.overflow){style.overflow="hidden";if(!jQuery.support.shrinkWrapBlocks){anim.done(function(){style.overflow=opts.overflow[0];style.overflowX=opts.overflow[1];style.overflowY=opts.overflow[2]})}}for(index in props){value=props[index];if(rfxtypes.exec(value)){delete props[index];toggle=toggle||value==="toggle";if(value===(hidden?"hide":"show")){continue}handled.push(index)}}length=handled.length;if(length){dataShow=jQuery._data(elem,"fxshow")||jQuery._data(elem,"fxshow",{});if("hidden"in dataShow){hidden=dataShow.hidden}if(toggle){dataShow.hidden=!hidden}if(hidden){jQuery(elem).show()}else{anim.done(function(){jQuery(elem).hide()})}anim.done(function(){var 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if(tween.elem.style&&(tween.elem.style[jQuery.cssProps[tween.prop]]!=null||jQuery.cssHooks[tween.prop])){jQuery.style(tween.elem,tween.prop,tween.now+tween.unit)}else{tween.elem[tween.prop]=tween.now}}}};Tween.propHooks.scrollTop=Tween.propHooks.scrollLeft={set:function(tween){if(tween.elem.nodeType&&tween.elem.parentNode){tween.elem[tween.prop]=tween.now}}};jQuery.each(["toggle","show","hide"],function(i,name){var cssFn=jQuery.fn[name];jQuery.fn[name]=function(speed,easing,callback){return speed==null||typeof speed==="boolean"||!i&&jQuery.isFunction(speed)&&jQuery.isFunction(easing)?cssFn.apply(this,arguments):this.animate(genFx(name,true),speed,easing,callback)}});jQuery.fn.extend({fadeTo:function(speed,to,easing,callback){return this.filter(isHidden).css("opacity",0).show().end().animate({opacity:to},speed,easing,callback)},animate:function(prop,speed,easing,callback){var empty=jQuery.isEmptyObject(prop),optall=jQuery.speed(speed,easing,callback),doAnimation=function(){var anim=Animation(this,jQuery.extend({},prop),optall);if(empty){anim.stop(true)}};return empty||optall.queue===false?this.each(doAnimation):this.queue(optall.queue,doAnimation)},stop:function(type,clearQueue,gotoEnd){var stopQueue=function(hooks){var stop=hooks.stop;delete hooks.stop;stop(gotoEnd)};if(typeof type!=="string"){gotoEnd=clearQueue;clearQueue=type;type=undefined}if(clearQueue&&type!==false){this.queue(type||"fx",[])}return this.each(function(){var dequeue=true,index=type!=null&&type+"queueHooks",timers=jQuery.timers,data=jQuery._data(this);if(index){if(data[index]&&data[index].stop){stopQueue(data[index])}}else{for(index in data){if(data[index]&&data[index].stop&&rrun.test(index)){stopQueue(data[index])}}}for(index=timers.length;index--;){if(timers[index].elem===this&&(type==null||timers[index].queue===type)){timers[index].anim.stop(gotoEnd);dequeue=false;timers.splice(index,1)}}if(dequeue||!gotoEnd){jQuery.dequeue(this,type)}})}});function genFx(type,includeWidth){var which,attrs={height:type},i=0;includeWidth=includeWidth?1:0;for(;i<4;i+=2-includeWidth){which=cssExpand[i];attrs["margin"+which]=attrs["padding"+which]=type}if(includeWidth){attrs.opacity=attrs.width=type}return attrs}jQuery.each({slideDown:genFx("show"),slideUp:genFx("hide"),slideToggle:genFx("toggle"),fadeIn:{opacity:"show"},fadeOut:{opacity:"hide"},fadeToggle:{opacity:"toggle"}},function(name,props){jQuery.fn[name]=function(speed,easing,callback){return this.animate(props,speed,easing,callback)}});jQuery.speed=function(speed,easing,fn){var opt=speed&&typeof speed==="object"?jQuery.extend({},speed):{complete:fn||!fn&&easing||jQuery.isFunction(speed)&&speed,duration:speed,easing:fn&&easing||easing&&!jQuery.isFunction(easing)&&easing};opt.duration=jQuery.fx.off?0:typeof opt.duration==="number"?opt.duration:opt.duration in jQuery.fx.speeds?jQuery.fx.speeds[opt.duration]:jQuery.fx.speeds._default;if(opt.queue==null||opt.queue===true){opt.queue="fx"}opt.old=opt.complete;opt.complete=function(){if(jQuery.isFunction(opt.old)){opt.old.call(this)}if(opt.queue){jQuery.dequeue(this,opt.queue)}};return opt};jQuery.easing={linear:function(p){return p},swing:function(p){return.5-Math.cos(p*Math.PI)/2}};jQuery.timers=[];jQuery.fx=Tween.prototype.init;jQuery.fx.tick=function(){var 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win=getWindow(elem);if(val===undefined){return win?prop in win?win[prop]:win.document.documentElement[method]:elem[method]}if(win){win.scrollTo(!top?val:jQuery(win).scrollLeft(),top?val:jQuery(win).scrollTop())}else{elem[method]=val}},method,val,arguments.length,null)}});function getWindow(elem){return jQuery.isWindow(elem)?elem:elem.nodeType===9?elem.defaultView||elem.parentWindow:false}jQuery.each({Height:"height",Width:"width"},function(name,type){jQuery.each({padding:"inner"+name,content:type,"":"outer"+name},function(defaultExtra,funcName){jQuery.fn[funcName]=function(margin,value){var chainable=arguments.length&&(defaultExtra||typeof margin!=="boolean"),extra=defaultExtra||(margin===true||value===true?"margin":"border");return jQuery.access(this,function(elem,type,value){var doc;if(jQuery.isWindow(elem)){return elem.document.documentElement["client"+name]}if(elem.nodeType===9){doc=elem.documentElement;return Math.max(elem.body["scroll"+name],doc["scroll"+name],elem.body["offset"+name],doc["offset"+name],doc["client"+name])}return value===undefined?jQuery.css(elem,type,value,extra):jQuery.style(elem,type,value,extra)},type,chainable?margin:undefined,chainable,null)}})});window.jQuery=window.$=jQuery;if(typeof define==="function"&&define.amd&&define.amd.jQuery){define("jquery",[],function(){return jQuery})}})(window); 
\ No newline at end of file
diff --git a/ydb/library/schlab/mon/static/js/scharm-test0.js b/ydb/library/schlab/mon/static/js/scharm-test0.js
index 7d543b63c1..ad41a4c446 100644
--- a/ydb/library/schlab/mon/static/js/scharm-test0.js
+++ b/ydb/library/schlab/mon/static/js/scharm-test0.js
@@ -1,29 +1,29 @@
-var cfg = [{
-    "label": "mygen1",
-    "startTime": 0,
+var cfg = [{ 
+    "label": "mygen1", 
+    "startTime": 0, 
     "period": 50,
-    "periodCount": 0,
+    "periodCount": 0, 
     "reqSizeBytes": 1000000,
     "reqCount": 1,
     "reqInterval": 1,
-    "user": "vdisk0",
-    "desc": "write-log"
-},{
-    "label": "mygen2",
+    "user": "vdisk0", 
+    "desc": "write-log" 
+},{ 
+    "label": "mygen2", 
     "startTime": 0,
     "period": 50,
     "periodCount": 0,
     "reqSizeBytes": 1000000,
-    "reqCount": 5,
+    "reqCount": 5, 
     "reqInterval": 1,
-    "user": "vdisk1",
-    "desc": "write-chunk"
-}];
-
-var scharm = d3.scharm().height(350).width(800);
-
-scharm.tableSelector('#cfg-table');
-scharm.chartSelector('#cfg-chart');
-scharm.applyUrl('?mode=setconfig');
-scharm.timeDomain([0, 1000]);
-scharm(cfg);
+    "user": "vdisk1", 
+    "desc": "write-chunk" 
+}]; 
+ 
+var scharm = d3.scharm().height(350).width(800); 
+ 
+scharm.tableSelector('#cfg-table'); 
+scharm.chartSelector('#cfg-chart'); 
+scharm.applyUrl('?mode=setconfig'); 
+scharm.timeDomain([0, 1000]); 
+scharm(cfg); 
diff --git a/ydb/library/schlab/mon/static/js/scharm.js b/ydb/library/schlab/mon/static/js/scharm.js
index ae5911a1c6..b15be1bd2e 100644
--- a/ydb/library/schlab/mon/static/js/scharm.js
+++ b/ydb/library/schlab/mon/static/js/scharm.js
@@ -1,497 +1,497 @@
-d3.scharm = function() {
-    // main scharm object
-    function scharm(newCfg) {
-        createAll();
-
-        // configure stuff using given config
-        cfg = newCfg;
-
-        var data = [];
-        for (var i = 0; i < cfg.length; i++) {
-            var row = [];
-            for (var a = 0; a < attributes.length; a++) {
-                if (attributes[a].type) {
-                    row.push(cfg[i][attributes[a].name]);
-                } else {
-                    row.push(i); // save row index for remove operation
-                }
-            }
-            data.push(row);
-        }
-
-        var tr = table.select("tbody").selectAll("tr.scharm-table-row")
-          .data(data)
-        ;
-        tr.exit().remove();
-        var trEnterUpd = tr.enter().append("tr")
-            .attr("class", "scharm-table-row")
-          .merge(tr) // enter + update
-        ;
-
-        var td = trEnterUpd.selectAll("td")
-          .data(function(d) { return d; })
-        ;
-        td.enter().append("td")
-          .merge(td) // enter + update
-            .attr("contenteditable", function(d, i) { return attributes[i].type? "true": null; })
-            .text(function(d, i) { return attributes[i].type? d: null; })
-            .on('keypress', onKeyPress)
-            .attr("class", function(d, i) {
-                return "scharm-cell scharm-cell-" +
-                    (attributes[i].type? attributes[i].type: attributes[i].class)
-                ;
-            })
-        ;
-
-        table.select("tbody").selectAll("td.scharm-cell-btn-remove")
-            .each(function(d, i) {
-                d3.select(this)
-                    .html("") // clear
-                  .append("button")
-                    .html("&times;")
-                    .attr("type", "button")
-                    .attr("class", "btn btn-default btn-xs")
-                    .on("click", function() {
-                        scharm.removeRow(d);
-                    })
-                ;
-                //d3.select(this).html('<button class="btn btn-default btn-xs">&times;</button>');
-            })
-        ;
-
-        drawSeries();
-
-        return scharm;
-    }
-
-    // private:
-
-    var dataToCfg = function() {
-        var curCfg = [];
-        table.select("tbody").selectAll("tr.scharm-table-row")
-            .each(function() {
-                var row = {};
-                d3.select(this).selectAll("td")
-                    .each(function(d, i) {
-                        if (attributes[i].type) {
-                            if (isNumberType(attributes[i].type)) {
-                                row[attributes[i].name] = +this.textContent;
-                            } else {
-                                row[attributes[i].name] = this.textContent;
-                            }
-                        }
-                    })
-                ;
-                curCfg.push(row);
-            })
-        ;
-        return curCfg;
-    }
-
-    var createAll = function() {
-        if (table) {
-            return; // ensure to create once
-        }
-
-        // create empty generators table
-        table = d3.select(tableSelector).append("table")
-            .attr("class", "table scharm-table")
-        ;
-
-        table.append("thead").append("tr").attr("class", "scharm-table-head")
-          .selectAll("td")
-          .data(attributes)
-          .enter().append("th")
-            .text(function(d) { return d.name; })
-        ;
-
-        table.append("tbody");
-
-        // initialize modal dialog for raw editing
-        $('#RawModal').on('shown.bs.modal', function (e) {
-            scharm(dataToCfg());
-            $('#cfg-text').val(JSON.stringify(cfg, null, " "));
-        });
-        $('#cfg-save').on('click', function (e) {
-            $('#RawModal').modal('hide');
-            var newCfg = JSON.parse($('#cfg-text').val());
-            scharm(newCfg);
-        });
-
-        // initialize throughput editor
-        d3.select("input#throughput").on('keypress', onKeyPress);
-
-        // init axis
-        x = d3.scaleLinear()
-            .domain([timeDomainStartMs, timeDomainEndMs])
-            .range([0, width]);
-            //.clamp(true); // dosn't work with zoom/pan
-        xZoomed = x;
-        y = d3.scaleLinear()
-            .domain([bytesDomainMax, 0])
-            .range([0, height - margin.top - margin.bottom]);
-        xAxis = d3.axisBottom()
-            .scale(x)
-            //.tickSubdivide(true)
-            .tickSize(8)
-            .tickPadding(8);
-        yAxis = d3.axisLeft()
-            .scale(y)
-            .tickSize(8)
-            .tickPadding(8);
-
-        // create svg element
-        svg = d3.select(chartSelector)
-          .append("svg")
-            .attr("class", "chart")
-            .attr("width", width + margin.left + margin.right)
-            .attr("height",height + margin.top + margin.bottom)
-        ;
-
-        // disable default page scrolling with mouse wheel
-        // because wheel is used for zooming
-        //window.onwheel = function(){ return false; }
-
-        zoom = d3.zoom()
-            .scaleExtent([1/10, 100])
-            //.translateExtent([0, 0], [1000,0])
-            .on("zoom", function() {
-                var tr = d3.event.transform;
-                xZoomed = tr.rescaleX(x);
-                svg.select("g.x.axis").call(xAxis.scale(xZoomed));
-
-                zoomContainer1.attr("transform", "translate(" + tr.x + ",0) scale(" + tr.k + ",1)");
-                zoomContainer2.attr("transform", "translate(" + tr.x + ",0) scale(" + tr.k + ",1)");
-
-                drawSeries();
-
-                //tr(x);
-            })
-        ;
-
-        svgChartContainer = svg.append('g')
-            .attr("transform", "translate(" + margin.left + ", " + margin.top + ")")
-        ;
-        svgChart = svgChartContainer.append("svg")
-            .attr("top", 0)
-            .attr("left", 0)
-            .attr("width", width)
-            .attr("height", height)
-            .attr("viewBox", "0 0 " + width + " " + height)
-        ;
-
-        zoomContainer1 = svgChart.append("g")
-            .attr("width", width)
-            .attr("height", height)
-        ;
-
-        zoomPanel = svgChart.append("rect")
-            .attr("class", "zoom-panel")
-            .attr("width", width)
-            .attr("height", height)
-            .call(zoom)
-        ;
-
-        zoomContainer2 = svgChart.append("g")
-            .attr("width", width)
-            .attr("height", height)
-        ;
-
-        // draw chart
-        seriesSvg = zoomContainer1.append("g")
-            .attr("class", "gantt-chart")
-            .attr("width", width + margin.left + margin.right)
-            .attr("height", height + margin.top + margin.bottom)
-        ;
-        seriesSvg.append("path");
-
-        // container for non-zoomable elements
-        fixedContainer = svg.append("g")
-            .attr("width", width + margin.left + margin.right)
-            .attr("height", height + margin.top + margin.bottom)
-            .attr("transform", "translate(" + margin.left + ", " + margin.top + ")")
-        ;
-
-        // create x axis
-        fixedContainer.append("g")
-            .attr("class", "x axis")
-            .attr("transform", "translate(0, " + (height - margin.top - margin.bottom) + ")")
-            .call(xAxis)
-          .append("text")
-            .attr("fill", "#000")
-            .attr("transform", "translate(0,10)")
-            .attr("x", width / 2)
-            .attr("y", 32)
-            .attr("dy", "0.71em")
-            .attr("text-anchor", "middle")
-            .text("time (ms)");
-        ;
-
-        // create y axis
-        fixedContainer.append("g")
-            .attr("class", "y axis")
-            .call(yAxis)
-          .append("text")
-            .attr("fill", "#000")
-            .attr("y", -14)
-            .attr("x", 10)
-            .attr("dy", "0.71em")
-            .attr("text-anchor", "end")
-            .text("queue size (bytes)");
-        ;
-
-        // right margin
-        var rmargin = fixedContainer.append("g")
-            .attr("id", "right-margin")
-            .attr("transform", "translate(" + width + ", 0)")
-        ;
-        rmargin.append("rect")
-            .attr("x", 0)
-            .attr("y", 0)
-            .attr("width", 1)
-            .attr("height", height - margin.top - margin.bottom)
-        ;
-
-        // top margin
-        var tmargin = fixedContainer.append("g")
-            .attr("id", "top-margin")
-            .attr("transform", "translate(0, 0)")
-        ;
-        tmargin.append("rect")
-            .attr("x", 0)
-            .attr("y", 0)
-            .attr("width", width)
-            .attr("height", 1)
-        ;
-
-    }
-
-    var drawSeries = function() {
-        // generate series data
-        var seriesEvents = [];
-        var tLeft = xZoomed.invert(0);
-        var tRight = xZoomed.invert(width);
-        for (var i = 0; i < cfg.length; i++) {
-            var gen = cfg[i];
-            var period2 = Math.ceil((tRight - gen.startTime * timeUnit) / (gen.period * timeUnit)) + 1;
-            var pe = Math.min(period2,
-                gen.periodCount? gen.periodCount: period2);
-            for (var p = 0; p < pe; p++) {
-                for (var j = 0; j < gen.reqCount; j++) {
-                    var t = gen.startTime * timeUnit
-                        + p * gen.period * timeUnit
-                        + j * gen.reqInterval * timeUnit;
-                    var item = [t, gen];
-                    seriesEvents.push(item);
-                }
-            }
-        }
-        seriesEvents.sort(function(a, b) {
-            return a[0] - b[0];
-        });
-
-        var seriesData = [];
-        var throughput = $("input#throughput").val() * 1024 * 1024 / 1000;
-        var t = 0;
-        var queueBytes = 0;
-        var queueBytesMax = 0;
-
-        var lastPoint = null;
-        function addPoint(x, y) {
-            if (x >= tLeft) {
-                if (seriesData.length == 0 && lastPoint != null) {
-                    seriesData.push(lastPoint);
-                }
-                seriesData.push([x, y]);
-            } else {
-                lastPoint = [x, y];
-            }
-        }
-
-        for (var i = 0; i < seriesEvents.length; i++) {
-            var e = seriesEvents[i];
-
-            var t0 = t + queueBytes / throughput;
-            var t1 = e[0];
-            if (t0 < t1) {
-                queueBytes = 0;
-                t = t0;
-                addPoint(t, queueBytes);
-            }
-
-            var dt = t1 - t;
-            queueBytes = Math.max(0, queueBytes - throughput * dt);
-            t = t1;
-            addPoint(t, queueBytes);
-
-            queueBytes += e[1].reqSizeBytes;
-            addPoint(t, queueBytes);
-
-            if (t > tLeft && queueBytesMax < queueBytes) {
-                queueBytesMax = queueBytes;
-            }
-        }
-
-        // add final point with zero bytes queued
-        if (queueBytes > 0) {
-            var t0 = t + queueBytes / throughput;
-            queueBytes = 0;
-            t = t0;
-            addPoint(t, queueBytes);
-        }
-
-        // update y scale
-        y.domain([queueBytesMax? queueBytesMax: bytesDomainMax,  0]);
-        svg.select("g.y.axis").call(yAxis);
-
-        var area = d3.area()
-            .x(function(d) { return x(d[0]); })
-            .y1(function(d) { return y(d[1]); })
-            .y0(y(0));
-
-        seriesSvg.select("path")
-            .datum(seriesData)
-            .attr("fill", "steelblue")
-            .attr("d", area);
-    }
-
-    var onKeyPress = function() {
-        if (d3.event.keyCode == 13) {
-            d3.event.preventDefault();
-            scharm(dataToCfg());
-        }
-    }
-
-    // public:
-
-    scharm.margin = function(value) {
-        if (!arguments.length)
-            return margin;
-        margin = value;
-        return scharm;
-    }
-
-    scharm.timeDomain = function(value) {
-        if (!arguments.length)
-            return [timeDomainStartMs, timeDomainEndMs];
-        timeDomainStartMs = value[0];
-        timeDomainEndMs = value[1];
-        return scharm;
-    }
-
-    scharm.width = function(value) {
-        if (!arguments.length)
-            return width;
-        width = +value;
-        return scharm;
-    }
-
-    scharm.height = function(value) {
-        if (!arguments.length)
-            return height;
-        height = +value;
-        return scharm;
-    }
-
-    scharm.tableSelector = function(value) {
-        if (!arguments.length)
-            return tableSelector;
-        tableSelector = value;
-        return scharm;
-    }
-
-    scharm.chartSelector = function(value) {
-        if (!arguments.length)
-            return chartSelector;
-        chartSelector = value;
-        return scharm;
-    }
-
-    scharm.applyUrl = function(value) {
-        if (!arguments.length)
-            return applyUrl;
-        applyUrl = value;
-        return scharm;
-    }
-
-    scharm.addRow = function() {
-        var newCfg = dataToCfg();
-        var row = new Object(emptyRow);
-        row.label = "gen" + newCfg.length;
-        newCfg.push(row);
-        scharm(newCfg);
-    }
-
-    scharm.removeRow = function(i) {
-        var newCfg = dataToCfg();
-        newCfg.splice(i, 1);
-        scharm(newCfg);
-    }
-
-    // should be called to regenerate chart on buttons clicks/etc
-    scharm.draw = function() {
-        scharm(dataToCfg());
-    }
-
-    // should be called to POST current config
-    scharm.sendCfg = function(callback) {
-        scharm(dataToCfg());
-        d3.json(applyUrl, callback).post(JSON.stringify(cfg));
-    }
+d3.scharm = function() { 
+    // main scharm object 
+    function scharm(newCfg) { 
+        createAll(); 
+ 
+        // configure stuff using given config 
+        cfg = newCfg; 
+ 
+        var data = []; 
+        for (var i = 0; i < cfg.length; i++) { 
+            var row = []; 
+            for (var a = 0; a < attributes.length; a++) { 
+                if (attributes[a].type) { 
+                    row.push(cfg[i][attributes[a].name]); 
+                } else { 
+                    row.push(i); // save row index for remove operation 
+                } 
+            } 
+            data.push(row); 
+        } 
+ 
+        var tr = table.select("tbody").selectAll("tr.scharm-table-row") 
+          .data(data) 
+        ; 
+        tr.exit().remove(); 
+        var trEnterUpd = tr.enter().append("tr") 
+            .attr("class", "scharm-table-row") 
+          .merge(tr) // enter + update 
+        ; 
+ 
+        var td = trEnterUpd.selectAll("td") 
+          .data(function(d) { return d; }) 
+        ; 
+        td.enter().append("td") 
+          .merge(td) // enter + update 
+            .attr("contenteditable", function(d, i) { return attributes[i].type? "true": null; }) 
+            .text(function(d, i) { return attributes[i].type? d: null; }) 
+            .on('keypress', onKeyPress) 
+            .attr("class", function(d, i) { 
+                return "scharm-cell scharm-cell-" + 
+                    (attributes[i].type? attributes[i].type: attributes[i].class) 
+                ; 
+            }) 
+        ; 
+ 
+        table.select("tbody").selectAll("td.scharm-cell-btn-remove") 
+            .each(function(d, i) { 
+                d3.select(this) 
+                    .html("") // clear 
+                  .append("button") 
+                    .html("&times;") 
+                    .attr("type", "button") 
+                    .attr("class", "btn btn-default btn-xs") 
+                    .on("click", function() { 
+                        scharm.removeRow(d); 
+                    }) 
+                ; 
+                //d3.select(this).html('<button class="btn btn-default btn-xs">&times;</button>'); 
+            }) 
+        ; 
+ 
+        drawSeries(); 
+ 
+        return scharm; 
+    } 
+ 
+    // private: 
+ 
+    var dataToCfg = function() { 
+        var curCfg = []; 
+        table.select("tbody").selectAll("tr.scharm-table-row") 
+            .each(function() { 
+                var row = {}; 
+                d3.select(this).selectAll("td") 
+                    .each(function(d, i) { 
+                        if (attributes[i].type) { 
+                            if (isNumberType(attributes[i].type)) { 
+                                row[attributes[i].name] = +this.textContent; 
+                            } else { 
+                                row[attributes[i].name] = this.textContent; 
+                            } 
+                        } 
+                    }) 
+                ; 
+                curCfg.push(row); 
+            }) 
+        ; 
+        return curCfg; 
+    } 
+ 
+    var createAll = function() { 
+        if (table) { 
+            return; // ensure to create once 
+        } 
+ 
+        // create empty generators table 
+        table = d3.select(tableSelector).append("table") 
+            .attr("class", "table scharm-table") 
+        ; 
+ 
+        table.append("thead").append("tr").attr("class", "scharm-table-head") 
+          .selectAll("td") 
+          .data(attributes) 
+          .enter().append("th") 
+            .text(function(d) { return d.name; }) 
+        ; 
+ 
+        table.append("tbody"); 
+ 
+        // initialize modal dialog for raw editing 
+        $('#RawModal').on('shown.bs.modal', function (e) { 
+            scharm(dataToCfg()); 
+            $('#cfg-text').val(JSON.stringify(cfg, null, " ")); 
+        }); 
+        $('#cfg-save').on('click', function (e) { 
+            $('#RawModal').modal('hide'); 
+            var newCfg = JSON.parse($('#cfg-text').val()); 
+            scharm(newCfg); 
+        }); 
+ 
+        // initialize throughput editor 
+        d3.select("input#throughput").on('keypress', onKeyPress); 
+ 
+        // init axis 
+        x = d3.scaleLinear() 
+            .domain([timeDomainStartMs, timeDomainEndMs]) 
+            .range([0, width]); 
+            //.clamp(true); // dosn't work with zoom/pan 
+        xZoomed = x; 
+        y = d3.scaleLinear() 
+            .domain([bytesDomainMax, 0]) 
+            .range([0, height - margin.top - margin.bottom]); 
+        xAxis = d3.axisBottom() 
+            .scale(x) 
+            //.tickSubdivide(true) 
+            .tickSize(8) 
+            .tickPadding(8); 
+        yAxis = d3.axisLeft() 
+            .scale(y) 
+            .tickSize(8) 
+            .tickPadding(8); 
+ 
+        // create svg element 
+        svg = d3.select(chartSelector) 
+          .append("svg") 
+            .attr("class", "chart") 
+            .attr("width", width + margin.left + margin.right) 
+            .attr("height",height + margin.top + margin.bottom) 
+        ; 
+ 
+        // disable default page scrolling with mouse wheel 
+        // because wheel is used for zooming 
+        //window.onwheel = function(){ return false; } 
+ 
+        zoom = d3.zoom() 
+            .scaleExtent([1/10, 100]) 
+            //.translateExtent([0, 0], [1000,0]) 
+            .on("zoom", function() { 
+                var tr = d3.event.transform; 
+                xZoomed = tr.rescaleX(x); 
+                svg.select("g.x.axis").call(xAxis.scale(xZoomed)); 
+ 
+                zoomContainer1.attr("transform", "translate(" + tr.x + ",0) scale(" + tr.k + ",1)"); 
+                zoomContainer2.attr("transform", "translate(" + tr.x + ",0) scale(" + tr.k + ",1)"); 
+ 
+                drawSeries(); 
+ 
+                //tr(x); 
+            }) 
+        ; 
+ 
+        svgChartContainer = svg.append('g') 
+            .attr("transform", "translate(" + margin.left + ", " + margin.top + ")") 
+        ; 
+        svgChart = svgChartContainer.append("svg") 
+            .attr("top", 0) 
+            .attr("left", 0) 
+            .attr("width", width) 
+            .attr("height", height) 
+            .attr("viewBox", "0 0 " + width + " " + height) 
+        ; 
+ 
+        zoomContainer1 = svgChart.append("g") 
+            .attr("width", width) 
+            .attr("height", height) 
+        ; 
+ 
+        zoomPanel = svgChart.append("rect") 
+            .attr("class", "zoom-panel") 
+            .attr("width", width) 
+            .attr("height", height) 
+            .call(zoom) 
+        ; 
+ 
+        zoomContainer2 = svgChart.append("g") 
+            .attr("width", width) 
+            .attr("height", height) 
+        ; 
+ 
+        // draw chart 
+        seriesSvg = zoomContainer1.append("g") 
+            .attr("class", "gantt-chart") 
+            .attr("width", width + margin.left + margin.right) 
+            .attr("height", height + margin.top + margin.bottom) 
+        ; 
+        seriesSvg.append("path"); 
+ 
+        // container for non-zoomable elements 
+        fixedContainer = svg.append("g") 
+            .attr("width", width + margin.left + margin.right) 
+            .attr("height", height + margin.top + margin.bottom) 
+            .attr("transform", "translate(" + margin.left + ", " + margin.top + ")") 
+        ; 
+ 
+        // create x axis 
+        fixedContainer.append("g") 
+            .attr("class", "x axis") 
+            .attr("transform", "translate(0, " + (height - margin.top - margin.bottom) + ")") 
+            .call(xAxis) 
+          .append("text") 
+            .attr("fill", "#000") 
+            .attr("transform", "translate(0,10)") 
+            .attr("x", width / 2) 
+            .attr("y", 32) 
+            .attr("dy", "0.71em") 
+            .attr("text-anchor", "middle") 
+            .text("time (ms)"); 
+        ; 
+ 
+        // create y axis 
+        fixedContainer.append("g") 
+            .attr("class", "y axis") 
+            .call(yAxis) 
+          .append("text") 
+            .attr("fill", "#000") 
+            .attr("y", -14) 
+            .attr("x", 10) 
+            .attr("dy", "0.71em") 
+            .attr("text-anchor", "end") 
+            .text("queue size (bytes)"); 
+        ; 
+ 
+        // right margin 
+        var rmargin = fixedContainer.append("g") 
+            .attr("id", "right-margin") 
+            .attr("transform", "translate(" + width + ", 0)") 
+        ; 
+        rmargin.append("rect") 
+            .attr("x", 0) 
+            .attr("y", 0) 
+            .attr("width", 1) 
+            .attr("height", height - margin.top - margin.bottom) 
+        ; 
+ 
+        // top margin 
+        var tmargin = fixedContainer.append("g") 
+            .attr("id", "top-margin") 
+            .attr("transform", "translate(0, 0)") 
+        ; 
+        tmargin.append("rect") 
+            .attr("x", 0) 
+            .attr("y", 0) 
+            .attr("width", width) 
+            .attr("height", 1) 
+        ; 
+ 
+    } 
+ 
+    var drawSeries = function() { 
+        // generate series data 
+        var seriesEvents = []; 
+        var tLeft = xZoomed.invert(0); 
+        var tRight = xZoomed.invert(width); 
+        for (var i = 0; i < cfg.length; i++) { 
+            var gen = cfg[i]; 
+            var period2 = Math.ceil((tRight - gen.startTime * timeUnit) / (gen.period * timeUnit)) + 1; 
+            var pe = Math.min(period2, 
+                gen.periodCount? gen.periodCount: period2); 
+            for (var p = 0; p < pe; p++) { 
+                for (var j = 0; j < gen.reqCount; j++) { 
+                    var t = gen.startTime * timeUnit 
+                        + p * gen.period * timeUnit 
+                        + j * gen.reqInterval * timeUnit; 
+                    var item = [t, gen]; 
+                    seriesEvents.push(item); 
+                } 
+            } 
+        } 
+        seriesEvents.sort(function(a, b) { 
+            return a[0] - b[0]; 
+        }); 
+ 
+        var seriesData = []; 
+        var throughput = $("input#throughput").val() * 1024 * 1024 / 1000; 
+        var t = 0; 
+        var queueBytes = 0; 
+        var queueBytesMax = 0; 
+ 
+        var lastPoint = null; 
+        function addPoint(x, y) { 
+            if (x >= tLeft) { 
+                if (seriesData.length == 0 && lastPoint != null) { 
+                    seriesData.push(lastPoint); 
+                } 
+                seriesData.push([x, y]); 
+            } else { 
+                lastPoint = [x, y]; 
+            } 
+        } 
+ 
+        for (var i = 0; i < seriesEvents.length; i++) { 
+            var e = seriesEvents[i]; 
+ 
+            var t0 = t + queueBytes / throughput; 
+            var t1 = e[0]; 
+            if (t0 < t1) { 
+                queueBytes = 0; 
+                t = t0; 
+                addPoint(t, queueBytes); 
+            } 
+ 
+            var dt = t1 - t; 
+            queueBytes = Math.max(0, queueBytes - throughput * dt); 
+            t = t1; 
+            addPoint(t, queueBytes); 
+ 
+            queueBytes += e[1].reqSizeBytes; 
+            addPoint(t, queueBytes); 
+ 
+            if (t > tLeft && queueBytesMax < queueBytes) { 
+                queueBytesMax = queueBytes; 
+            } 
+        } 
+ 
+        // add final point with zero bytes queued 
+        if (queueBytes > 0) { 
+            var t0 = t + queueBytes / throughput; 
+            queueBytes = 0; 
+            t = t0; 
+            addPoint(t, queueBytes); 
+        } 
+ 
+        // update y scale 
+        y.domain([queueBytesMax? queueBytesMax: bytesDomainMax,  0]); 
+        svg.select("g.y.axis").call(yAxis); 
+ 
+        var area = d3.area() 
+            .x(function(d) { return x(d[0]); }) 
+            .y1(function(d) { return y(d[1]); }) 
+            .y0(y(0)); 
+ 
+        seriesSvg.select("path") 
+            .datum(seriesData) 
+            .attr("fill", "steelblue") 
+            .attr("d", area); 
+    } 
+ 
+    var onKeyPress = function() { 
+        if (d3.event.keyCode == 13) { 
+            d3.event.preventDefault(); 
+            scharm(dataToCfg()); 
+        } 
+    } 
+ 
+    // public: 
+ 
+    scharm.margin = function(value) { 
+        if (!arguments.length) 
+            return margin; 
+        margin = value; 
+        return scharm; 
+    } 
+ 
+    scharm.timeDomain = function(value) { 
+        if (!arguments.length) 
+            return [timeDomainStartMs, timeDomainEndMs]; 
+        timeDomainStartMs = value[0]; 
+        timeDomainEndMs = value[1]; 
+        return scharm; 
+    } 
+ 
+    scharm.width = function(value) { 
+        if (!arguments.length) 
+            return width; 
+        width = +value; 
+        return scharm; 
+    } 
+ 
+    scharm.height = function(value) { 
+        if (!arguments.length) 
+            return height; 
+        height = +value; 
+        return scharm; 
+    } 
+ 
+    scharm.tableSelector = function(value) { 
+        if (!arguments.length) 
+            return tableSelector; 
+        tableSelector = value; 
+        return scharm; 
+    } 
+ 
+    scharm.chartSelector = function(value) { 
+        if (!arguments.length) 
+            return chartSelector; 
+        chartSelector = value; 
+        return scharm; 
+    } 
+ 
+    scharm.applyUrl = function(value) { 
+        if (!arguments.length) 
+            return applyUrl; 
+        applyUrl = value; 
+        return scharm; 
+    } 
+ 
+    scharm.addRow = function() { 
+        var newCfg = dataToCfg(); 
+        var row = new Object(emptyRow); 
+        row.label = "gen" + newCfg.length; 
+        newCfg.push(row); 
+        scharm(newCfg); 
+    } 
+ 
+    scharm.removeRow = function(i) { 
+        var newCfg = dataToCfg(); 
+        newCfg.splice(i, 1); 
+        scharm(newCfg); 
+    } 
+ 
+    // should be called to regenerate chart on buttons clicks/etc 
+    scharm.draw = function() { 
+        scharm(dataToCfg()); 
+    } 
+ 
+    // should be called to POST current config 
+    scharm.sendCfg = function(callback) { 
+        scharm(dataToCfg()); 
+        d3.json(applyUrl, callback).post(JSON.stringify(cfg)); 
+    } 
     // should be called to apply the current config
     scharm.applyCfg = function() {
         scharm(dataToCfg());
     }
-
-    // constructor
-    var attributes = [
-        { name: "label",        type: "string" },
-        { name: "startTime",    type: "time" },
-        { name: "period",       type: "time" },
-        { name: "periodCount",  type: "integer" },
-        { name: "reqSizeBytes", type: "bytes" },
-        { name: "reqCount",     type: "integer" },
-        { name: "reqInterval",  type: "time" },
-        { name: "user",         type: "string" },
-        { name: "desc",         type: "string" },
-
-        // Remove button
-        { name: "",             class: "btn-remove" }
-    ];
-
-    var isNumberType = function(t) {
-        return t === 'time' || t === 'integer' || t === 'bytes';
-    }
-
-    var margin = {
-        top: 20,
-        right: 40,
-        bottom: 20,
-        left: 80,
-        footer: 100,
-    };
-    var emptyRow = {
-        label: "label",
-        startTime: 0,
-        period: 100,
-        periodCount: 0, // infinite generation
-        reqSizeBytes: 1024,
-        reqCount: 1,
-        reqInterval: 10,
-        user: "vdisk0",
-        desc: "write"
-    };
-    var tableSelector = 'body', chartSelector = 'body', applyUrl = '?mode=setconfig',
-        height = document.body.clientHeight - margin.top - margin.bottom - 5,
-        width = document.body.clientWidth - margin.right - margin.left - 5,
-        timeDomainStartMs = 0, timeDomainEndMs = 1000, timeUnit = 1,
-        bytesDomainMax = 10e6,
-        cfg,
-        table,
-        x, y, xAxis, yAxis, xZoomed,
-        svg, svgChartContainer, svgChart, seriesSvg,
-        zoom, zoomContainer1, zoomPanel, zoomContainer2, fixedContainer
-    ;
-
-    return scharm;
-}
+ 
+    // constructor 
+    var attributes = [ 
+        { name: "label",        type: "string" }, 
+        { name: "startTime",    type: "time" }, 
+        { name: "period",       type: "time" }, 
+        { name: "periodCount",  type: "integer" }, 
+        { name: "reqSizeBytes", type: "bytes" }, 
+        { name: "reqCount",     type: "integer" }, 
+        { name: "reqInterval",  type: "time" }, 
+        { name: "user",         type: "string" }, 
+        { name: "desc",         type: "string" }, 
+ 
+        // Remove button 
+        { name: "",             class: "btn-remove" } 
+    ]; 
+ 
+    var isNumberType = function(t) { 
+        return t === 'time' || t === 'integer' || t === 'bytes'; 
+    } 
+ 
+    var margin = { 
+        top: 20, 
+        right: 40, 
+        bottom: 20, 
+        left: 80, 
+        footer: 100, 
+    }; 
+    var emptyRow = { 
+        label: "label", 
+        startTime: 0, 
+        period: 100, 
+        periodCount: 0, // infinite generation 
+        reqSizeBytes: 1024, 
+        reqCount: 1, 
+        reqInterval: 10, 
+        user: "vdisk0", 
+        desc: "write" 
+    }; 
+    var tableSelector = 'body', chartSelector = 'body', applyUrl = '?mode=setconfig', 
+        height = document.body.clientHeight - margin.top - margin.bottom - 5, 
+        width = document.body.clientWidth - margin.right - margin.left - 5, 
+        timeDomainStartMs = 0, timeDomainEndMs = 1000, timeUnit = 1, 
+        bytesDomainMax = 10e6, 
+        cfg, 
+        table, 
+        x, y, xAxis, yAxis, xZoomed, 
+        svg, svgChartContainer, svgChart, seriesSvg, 
+        zoom, zoomContainer1, zoomPanel, zoomContainer2, fixedContainer 
+    ; 
+ 
+    return scharm; 
+} 
diff --git a/ydb/library/schlab/mon/static/js/schviz-test0.js b/ydb/library/schlab/mon/static/js/schviz-test0.js
index 43ebb738f6..bc88ae05c1 100644
--- a/ydb/library/schlab/mon/static/js/schviz-test0.js
+++ b/ydb/library/schlab/mon/static/js/schviz-test0.js
@@ -1,26 +1,26 @@
-d3.json("schviz-test0.json", function(hist) {
-    var linesCount = 100;
-    var lineHeight = 50;
-    for (var i = 4; i < linesCount; i++) {
-        hist[0].cbs.push({
-            "idx": i,
-            "name": "vdisk" + i,
-            "max_budget": 250000000,
-            "period": 1000000000,
-            "cur_budget": 250000000,
-            "deadline": Math.random()*1000000000,
-            "state": "ACTIVE",
-            "req": [{
-                "id": 1,
-                "cost": 125000000,
-                "state": "RUNNING",
-                "seqno": 1
-            }]
-        });
-    }
-
-    var schviz = d3.schviz().height(lineHeight*linesCount).width(800);
-
-    schviz.timeDomain([0, 1000]);
-    schviz(hist);
-});
+d3.json("schviz-test0.json", function(hist) { 
+    var linesCount = 100; 
+    var lineHeight = 50; 
+    for (var i = 4; i < linesCount; i++) { 
+        hist[0].cbs.push({ 
+            "idx": i, 
+            "name": "vdisk" + i, 
+            "max_budget": 250000000, 
+            "period": 1000000000, 
+            "cur_budget": 250000000, 
+            "deadline": Math.random()*1000000000, 
+            "state": "ACTIVE", 
+            "req": [{ 
+                "id": 1, 
+                "cost": 125000000, 
+                "state": "RUNNING", 
+                "seqno": 1 
+            }] 
+        }); 
+    } 
+ 
+    var schviz = d3.schviz().height(lineHeight*linesCount).width(800); 
+ 
+    schviz.timeDomain([0, 1000]); 
+    schviz(hist); 
+}); 
diff --git a/ydb/library/schlab/mon/static/js/schviz.js b/ydb/library/schlab/mon/static/js/schviz.js
index 17f870d023..1f0165bb83 100644
--- a/ydb/library/schlab/mon/static/js/schviz.js
+++ b/ydb/library/schlab/mon/static/js/schviz.js
@@ -1,951 +1,951 @@
-d3.schviz = function() {
-    // main schviz object
-    function schviz(hist) {
-        data = parseHistory(hist);
-
-        initAxis();
-
-        // create svg element
-        svg = d3.select(selector)
-          .append("svg")
-            .attr("class", "chart")
-            .attr("width", width + margin.left + margin.right)
-            .attr("height",height + margin.top + margin.bottom)
-        ;
-
-        // create arrowhead marker
-        defs = svg.append("defs");
-        defs.append("marker")
-            .attr("id", "arrow")
-            .attr("viewBox", "0 -5 10 10")
-            .attr("refX", 5)
-            .attr("refY", 0)
-            .attr("markerWidth", 4)
-            .attr("markerHeight", 4)
-            .attr("orient", "auto")
-          .append("path")
-            .attr("d", "M0,-5L10,0L0,5")
-            .attr("class","arrowHead")
-        ;
-
-        // disable default page scrolling with mouse wheel
-        // because wheel is used for zooming
-        window.onwheel = function(){ return false; }
-
-        zoom = d3.zoom()
+d3.schviz = function() { 
+    // main schviz object 
+    function schviz(hist) { 
+        data = parseHistory(hist); 
+ 
+        initAxis(); 
+ 
+        // create svg element 
+        svg = d3.select(selector) 
+          .append("svg") 
+            .attr("class", "chart") 
+            .attr("width", width + margin.left + margin.right) 
+            .attr("height",height + margin.top + margin.bottom) 
+        ; 
+ 
+        // create arrowhead marker 
+        defs = svg.append("defs"); 
+        defs.append("marker") 
+            .attr("id", "arrow") 
+            .attr("viewBox", "0 -5 10 10") 
+            .attr("refX", 5) 
+            .attr("refY", 0) 
+            .attr("markerWidth", 4) 
+            .attr("markerHeight", 4) 
+            .attr("orient", "auto") 
+          .append("path") 
+            .attr("d", "M0,-5L10,0L0,5") 
+            .attr("class","arrowHead") 
+        ; 
+ 
+        // disable default page scrolling with mouse wheel 
+        // because wheel is used for zooming 
+        window.onwheel = function(){ return false; } 
+ 
+        zoom = d3.zoom() 
             .scaleExtent([0.1, 1000])
-            //.translateExtent([0, 0], [1000,0])
-            .on("zoom", function() {
-                var tr = d3.event.transform;
-                xZoomed = tr.rescaleX(x);
-                svg.select("g.x.axis").call(xAxis.scale(xZoomed));
-
-                var dy = d3.event.sourceEvent.screenY - zoom.startScreenY;
-                var newScrollTop = documentBodyScrollTop() - dy;
-                window.scrollTo(documentBodyScrollLeft(), newScrollTop);
-                documentBodyScrollTop(newScrollTop);
-                zoom.startScreenY = d3.event.sourceEvent.screenY;
-
-                zoomContainer1.attr("transform", "translate(" + tr.x + ",0) scale(" + tr.k + ",1)");
-                zoomContainer2.attr("transform", "translate(" + tr.x + ",0) scale(" + tr.k + ",1)");
-
-                drawCbsStates();
-                drawReqBands();
-                drawReqArrivals();
-
-                //tr(x);
-            })
-            .on("start", function() {
-                zoom.startScreenY = d3.event.sourceEvent.screenY;
-            })
-            .on("end", function() {
-            })
-        ;
-
-        svgChartContainer = svg.append('g')
-            .attr("transform", "translate(" + margin.left + ", " + margin.top + ")")
-        ;
-        svgChart = svgChartContainer.append("svg")
-            .attr("top", 0)
-            .attr("left", 0)
-            .attr("width", width)
-            .attr("height", height)
-            .attr("viewBox", "0 0 " + width + " " + height)
-        ;
-
-        zoomContainer1 = svgChart.append("g")
-            .attr("width", width)
-            .attr("height", height)
-        ;
-
-        zoomPanel = svgChart.append("rect")
-            .attr("class", "zoom-panel")
-            .attr("width", width)
-            .attr("height", height)
-            .call(zoom)
-        ;
-
-        zoomContainer2 = svgChart.append("g")
-            .attr("width", width)
-            .attr("height", height)
-        ;
-
-        cbsSvg = zoomContainer1.append("g")
-            .attr("width", width + margin.left + margin.right)
-            .attr("height", height + margin.top + margin.bottom)
-        ;
-
-        reqSvg = zoomContainer2.append("g")
-            .attr("width", width + margin.left + margin.right)
-            .attr("height", height + margin.top + margin.bottom)
-        ;
-
-        // tooltips for requests
-        var maxTipHeight = 130;
-        function tipDirection(d) {
-            var y0 = y(d[0].get('cbsName'));
-            return (y0 - maxTipHeight < documentBodyScrollTop()? 's': 'n');
-        }
-        tip = d3.tip()
-            .attr("class", "d3-tip")
-            .offset(function(d) {
-                // compute x to return tip in chart region
-                var t0 = (d[0].get('ts') + d[1].get('ts')) / 2;
-                var t1 = Math.min(Math.max(t0, xZoomed.invert(0)), xZoomed.invert(width));
-                var dir = tipDirection(d);
-                return [dir === 'n'? -10 : 10, xZoomed(t1) - xZoomed(t0)];
-            })
-            .direction(tipDirection)
-            .html(function(d) {
-                return "<table><tr><td class='tip-heading' colspan='2'>"
-                    + "<u>" + d[0].get('kind') + " #" + d[0].get('id') + ":</u></td></tr>"
-                        + "<tr><td class='tip-key'>part:</td><td class='tip-value'>"
-                        + getPartNo(d) + "/" + getPartCount(d)
-                        + "</td></tr>"
-                        + "<tr><td class='tip-key'>est. cost:</td><td class='tip-value'>"
-                        + costFmt(getEstCost(d)) + "/" + costFmt(getEstTotalCost(d))
-                        + "</td></tr>"
-                        + "<tr><td class='tip-key'>real cost:</td><td class='tip-value'>"
-                        + costFmt(getRealCost(d)) + "/" + costFmt(getRealTotalCost(d))
-                        + "</td></tr>"
-                        + "<tr><td class='tip-key'>arrive:</td><td class='tip-value'>"
-                        + timeFmt(d[0].get('arrived')) + "&nbsp;ms"
-                        + "</td></tr>"
-                        + "<tr><td class='tip-key'>begin:</td><td class='tip-value'>"
-                        + timeFmt(d[0].get('ts')) + "&nbsp;ms"
-                        + "</td></tr>"
-                        + "<tr><td class='tip-key'>end:</td><td class='tip-value'>"
-                        + timeFmt(d[1].get('ts')) + "&nbsp;ms"
-                        + "</td></tr>"
-                        + "<tr><td class='tip-key'>seqno:</td><td class='tip-value'>"
-                        + d[0].get('seqno')
-                        + "</td></tr>"
-                    + "</table>"
-                ;
-            })
-        ;
-
-        reqSvg.call(tip);
-
-        // create rectangles for cbs bands
-        cbsbands = cbsSvg.selectAll(".chart")
-          .data(data.cbsband, cbsKeyFunction)
-          .enter()
-          .append("rect")
-            .attr("class", function(d) {
-                return cbsStateClass[d[0].get('state')] || "bar";
-            })
-            .attr("y", 0)
-            .attr("transform", cbsRectTransform)
-            .attr("height", y.bandwidth())
-            .attr("width", function(d) {
-                return Math.max(1*xPixel(), (x(d[1].get('ts')) - x(d[0].get('ts'))));
-            })
-        ;
-
-        cbsstates = zoomContainer1.append("g");
-        drawCbsStates(0);
-
-        drawReqBands();
-
-        drawReqArrivals();
-
-        // container for non-zoomable elements
-        fixedContainer = svg.append("g")
-            .attr("width", width + margin.left + margin.right)
-            .attr("height", height + margin.top + margin.bottom)
-            .attr("transform", "translate(" + margin.left + ", " + margin.top + ")")
-        ;
-
-        // create x axis
-        fixedContainer.append("g")
-            .attr("class", "x axis")
-            .attr("transform", "translate(0, " + (height - margin.top - margin.bottom) + ")")
-          .transition()
-            .call(xAxis)
-        ;
-
-        // create y axis
-        fixedContainer.append("g")
-            .attr("class", "y axis")
-          .transition()
-            .call(yAxis)
-        ;
-
-        // make y axis ticks draggable
-        var ytickdrag = d3.drag()
-            .on("drag", function(d) {
-                var ypos = d3.event.y - margin.top;
-                var index = Math.floor((ypos / y.step()));
-                index = Math.min(Math.max(index, 0), this.initDomain.length - 1);
-                if (index != this.curIndex) {
-                    var newDomain = [];
-                    for (var i = 0; i < this.initDomain.length; ++i) {
-                        newDomain.push(this.initDomain[i]);
-                    }
-                    newDomain.splice(this.initIndex, 1);
-                    newDomain.splice(index, 0, this.initDomain[this.initIndex]);
-
-                    this.curIndex = index;
-                    this.curDomain = newDomain;
-                    y.domain(newDomain);
-
-                    // rearange y scale and axis
-                    svg.select("g.y.axis").transition().call(yAxis);
-
-                    // rearange other stuff
-                    cbsbands.transition().attr("transform", cbsRectTransform);
-                    drawReqBands();
-                    drawReqArrivals(true);
-                    drawCbsStates(-1, true);
-                }
-            })
-            .on("start", function(d) {
-                var ypos = d3.event.y - margin.top;
-                this.initIndex = Math.floor((ypos / y.step()));
-                this.initDomain = y.domain();
-            })
-            .on("end", function(d) {
-                svg.select("g.y.axis").call(yAxis);
-            })
-        ;
-        svg.selectAll("g.y.axis .tick")
-            .call(ytickdrag)
-        ;
-
-        // right margin
-        var rmargin = fixedContainer.append("g")
-            .attr("id", "right-margin")
-            .attr("transform", "translate(" + width + ", 0)")
-        ;
-        rmargin.append("rect")
-            .attr("x", 0)
-            .attr("y", 0)
-            .attr("width", 1)
-            .attr("height", height - margin.top - margin.bottom)
-        ;
-
-        // top margin
-        var tmargin = fixedContainer.append("g")
-            .attr("id", "top-margin")
-            .attr("transform", "translate(0, 0)")
-        ;
-        tmargin.append("rect")
-            .attr("x", 0)
-            .attr("y", 0)
-            .attr("width", width)
-            .attr("height", 1)
-        ;
-
-        // ruler
-        ruler = fixedContainer.append("g")
-            .attr("id", "ruler")
-            .attr("transform", "translate(0, 0)")
-        ;
-        ruler.append("rect")
-            .attr("id", "ruler-line")
-            .attr("x", 0)
-            .attr("y", 0)
-            .attr("width", "1")
-            .attr("height", height - margin.top - margin.bottom + 8)
-        ;
-        ruler.append("rect")
-            .attr("id", "bgrect")
-            .attr("x", 0)
-            .attr("y", 0)
-            .attr("width", 0)
-            .attr("height", 0)
-            .style("fill", "white")
-        ;
-        ruler.append("text")
-            .attr("x", 0)
-            .attr("y", height - margin.top - margin.bottom + 16)
-            .attr("dy", "0.71em")
-            .text("0")
-        ;
-
-        svg.on('mousemove', function() {
-            positionRuler(d3.event.pageX);
-        });
-
-        // scroll handling
-        window.onscroll = function myFunction() {
-            documentBodyScrollLeft(document.body.scrollLeft);
-            documentBodyScrollTop(document.body.scrollTop);
-            var scroll = scrollParams();
-
-            svgChartContainer
-                .attr("transform", "translate(" + margin.left
-                                         + ", " + (margin.top + scroll.y1) + ")");
-            svgChart
-                .attr("viewBox", "0 " + scroll.y1 + " " + width + " " + scroll.h)
-                .attr("height", scroll.h);
-            tmargin
-                .attr("transform", "translate(0," + scroll.y1 + ")");
-            fixedContainer.select(".x.axis")
-                .attr("transform", "translate(0," + scroll.y2 + ")");
-            rmargin.select("rect")
-                .attr("y", scroll.y1)
-                .attr("height", scroll.h);
-            ruler.select("#ruler-line")
-                .attr("y", scroll.y1)
-                .attr("height", scroll.h);
-
-            positionRuler();
-        }
-
-        // draw chart
-        schviz.draw();
-
-       // update to initiale state
-        window.onscroll(0);
-
-        return schviz;
-    }
-
-// private:
-
-    var cbsKeyFunction = function(d) {
-        return "cbs:" +
-                d[0].get('ts').toString() +
-                d[0].get('idx').toString() +
-                d[1].get('ts').toString();
-    }
-
-    var cbsStateKeyFunction = function(d) {
-        return "cbsState:" + d.get('idx').toString();
-    }
-
-    var reqKeyFunction = function(d) {
-        return "req:" +
-                d[0].get('ts').toString() +
-                d[0].get('id').toString() +
-                d[1].get('ts').toString();
-    }
-
-    var reqStateKeyFunction = function(d) {
-        return "reqState:" + d[0].get('id').toString();
-    }
-
-    var cbsRectTransform = function(d) {
-        return "translate(" + x(d[0].get('ts')) + "," + y(d[0].get('name')) + ")";
-    }
-
-    var xPixel = function(d) {
-        return xZoomed.invert(1) - xZoomed.invert(0);
-    }
-
-    var getEstCost = function(d) {
-        return (d[1].get('state') == "DONE"?
-            d[0].get('cost') :
-            d[0].get('cost') - d[1].get('cost'));
-    }
-
-    var getRealCost = function(d) {
-        return d[1].get('ts') - d[0].get('ts');
-    }
-
-    var getEstTotalCost = function(d) {
-        return d[0].get('initCost');
-    }
-
-    var getRealTotalCost = function(d) {
-        var realtotalcost = 0;
-        var id = d[0].get('id');
-        data.reqband.filter(function(dd) {
-            return dd[0].get('id') == id && dd[0].get('state') == "RUNNING";
-        }).forEach(function(dd) {
-            realtotalcost += getRealCost(dd);
-        });
-        return realtotalcost;
-    }
-
-    var getPartNo = function(d) {
-        return d[0].get('partNo');
-    }
-
-    var getPartCount = function(d) {
-        var partCount = 0;
-        var id = d[0].get('id');
-        data.reqband.filter(function(dd) {
-            return dd[0].get('id') == id && dd[0].get('state') == "RUNNING";
-        }).forEach(function(dd) {
-            partCount++;
-        });
-        return partCount;
-    }
-
-    var initAxis = function() {
-        x = d3.scaleLinear()
-            .domain([timeDomainStartMs, timeDomainEndMs])
-            .range([0, width])
-            //.clamp(true); // dosn't work with zoom/pan
-        xZoomed = x;
-        y = d3.scaleBand()
-            .domain(Object.values(data.cbs).map(x => x.name).sort())
-            .rangeRound([0, height - margin.top - margin.bottom])
-            .padding(0.5);
-        xAxis = d3.axisBottom()
-            .scale(x)
-            //.tickSubdivide(true)
-            .tickSize(8)
-            .tickPadding(8);
-        yAxis = d3.axisLeft()
-            .scale(y)
-            .tickSize(0);
-    }
-
-    var drawCbsStates = function(t0, smoothIn) {
-        // Save/restore last t0 value
-        if (!arguments.length || t0 == -1) {
-            t0 = drawCbsStates.t0;
-        }
-        drawCbsStates.t0 = t0;
-
-        var smooth = (arguments.length > 1? smoothIn: false);
-
-        var pxl = xPixel();
-
-        // find cbsbands containing given instant t0 and return left state
-        function findCbsState(data) {
-            return data.cbsband.filter(function(d) {
-                return d[0].get('ts') <= t0 && t0 < d[1].get('ts');
-            }).map(function(d) {
-                return d[0];
-            });
-        }
-        var cbsStateData = findCbsState(data);
-
-        // create/update/remove bands for cbs max_budget
-        var updCurBudget = cbsstates.selectAll("rect.cbs-active")
-          .data(cbsStateData, cbsStateKeyFunction);
-        updCurBudget.exit().remove();
-        updCurBudget.enter().append("rect")
-            .attr("class", "cbs-active")
-          .merge(updCurBudget) // enter + update
-          .transition().duration(smooth ? transDuration : 0)
-            .attr("transform", function(d) {
-                return "translate(" + x(t0) + "," + y(d.get('name')) + ")";
-            })
-            .attr("y", y.bandwidth() * (1+1/8) + 4)
-            .attr("height", y.bandwidth() / 8)
-            .attr("width", function(d) {
-                var budget = d.get('max_budget');
-                return Math.max(0, x(budget) - x(0));
-            })
-        ;
-
-        // create/update/remove bands for cbs cur_budget
-        var updCurBudget = cbsstates.selectAll("rect.cbs-running")
-          .data(cbsStateData, cbsStateKeyFunction);
-        updCurBudget.exit().remove();
-        updCurBudget.enter().append("rect")
-            .attr("class", "cbs-running")
-          .merge(updCurBudget) // enter + update
-          .transition().duration(smooth ? transDuration : 0)
-            .attr("transform", function(d) {
-                return "translate(" + x(t0) + "," + y(d.get('name')) + ")";
-            })
-            .attr("y", y.bandwidth() * (1+1/8) + 4)
-            .attr("height", y.bandwidth() / 8)
-            .attr("width", function(d) {
-                var budget = d.get('cur_budget');
-                if (d.get('state') == "RUNNING") {
-                    budget -= t0 - d.get('ts');
-                }
-                return Math.max(0, x(budget) - x(0));
-            })
-        ;
-
-        // create/update/remove bars for cbs deadline
-        var updDeadline = cbsstates.selectAll("line")
-          .data(cbsStateData, cbsStateKeyFunction);
-        updDeadline.exit().remove();
-        updDeadline.enter().append("line")
-            .attr("class", "arrow-deadline")
-            //.attr("marker-end", "url(#arrow)")
-            .attr("transform", function(d) {
-                return "translate("
-                    + x(d.get('deadline')) + ","
-                    + y(d.get('name')) + ")scale(" + pxl + ",1)";
-            })
-          .merge(updDeadline) // enter + update
-          .transition().duration(smooth ? transDuration : 0)
-            .attr("x1", 0)
-            .attr("x2", 0)
-            .attr("y1", 0)
+            //.translateExtent([0, 0], [1000,0]) 
+            .on("zoom", function() { 
+                var tr = d3.event.transform; 
+                xZoomed = tr.rescaleX(x); 
+                svg.select("g.x.axis").call(xAxis.scale(xZoomed)); 
+ 
+                var dy = d3.event.sourceEvent.screenY - zoom.startScreenY; 
+                var newScrollTop = documentBodyScrollTop() - dy; 
+                window.scrollTo(documentBodyScrollLeft(), newScrollTop); 
+                documentBodyScrollTop(newScrollTop); 
+                zoom.startScreenY = d3.event.sourceEvent.screenY; 
+ 
+                zoomContainer1.attr("transform", "translate(" + tr.x + ",0) scale(" + tr.k + ",1)"); 
+                zoomContainer2.attr("transform", "translate(" + tr.x + ",0) scale(" + tr.k + ",1)"); 
+ 
+                drawCbsStates(); 
+                drawReqBands(); 
+                drawReqArrivals(); 
+ 
+                //tr(x); 
+            }) 
+            .on("start", function() { 
+                zoom.startScreenY = d3.event.sourceEvent.screenY; 
+            }) 
+            .on("end", function() { 
+            }) 
+        ; 
+ 
+        svgChartContainer = svg.append('g') 
+            .attr("transform", "translate(" + margin.left + ", " + margin.top + ")") 
+        ; 
+        svgChart = svgChartContainer.append("svg") 
+            .attr("top", 0) 
+            .attr("left", 0) 
+            .attr("width", width) 
+            .attr("height", height) 
+            .attr("viewBox", "0 0 " + width + " " + height) 
+        ; 
+ 
+        zoomContainer1 = svgChart.append("g") 
+            .attr("width", width) 
+            .attr("height", height) 
+        ; 
+ 
+        zoomPanel = svgChart.append("rect") 
+            .attr("class", "zoom-panel") 
+            .attr("width", width) 
+            .attr("height", height) 
+            .call(zoom) 
+        ; 
+ 
+        zoomContainer2 = svgChart.append("g") 
+            .attr("width", width) 
+            .attr("height", height) 
+        ; 
+ 
+        cbsSvg = zoomContainer1.append("g") 
+            .attr("width", width + margin.left + margin.right) 
+            .attr("height", height + margin.top + margin.bottom) 
+        ; 
+ 
+        reqSvg = zoomContainer2.append("g") 
+            .attr("width", width + margin.left + margin.right) 
+            .attr("height", height + margin.top + margin.bottom) 
+        ; 
+ 
+        // tooltips for requests 
+        var maxTipHeight = 130; 
+        function tipDirection(d) { 
+            var y0 = y(d[0].get('cbsName')); 
+            return (y0 - maxTipHeight < documentBodyScrollTop()? 's': 'n'); 
+        } 
+        tip = d3.tip() 
+            .attr("class", "d3-tip") 
+            .offset(function(d) { 
+                // compute x to return tip in chart region 
+                var t0 = (d[0].get('ts') + d[1].get('ts')) / 2; 
+                var t1 = Math.min(Math.max(t0, xZoomed.invert(0)), xZoomed.invert(width)); 
+                var dir = tipDirection(d); 
+                return [dir === 'n'? -10 : 10, xZoomed(t1) - xZoomed(t0)]; 
+            }) 
+            .direction(tipDirection) 
+            .html(function(d) { 
+                return "<table><tr><td class='tip-heading' colspan='2'>" 
+                    + "<u>" + d[0].get('kind') + " #" + d[0].get('id') + ":</u></td></tr>" 
+                        + "<tr><td class='tip-key'>part:</td><td class='tip-value'>" 
+                        + getPartNo(d) + "/" + getPartCount(d) 
+                        + "</td></tr>" 
+                        + "<tr><td class='tip-key'>est. cost:</td><td class='tip-value'>" 
+                        + costFmt(getEstCost(d)) + "/" + costFmt(getEstTotalCost(d)) 
+                        + "</td></tr>" 
+                        + "<tr><td class='tip-key'>real cost:</td><td class='tip-value'>" 
+                        + costFmt(getRealCost(d)) + "/" + costFmt(getRealTotalCost(d)) 
+                        + "</td></tr>" 
+                        + "<tr><td class='tip-key'>arrive:</td><td class='tip-value'>" 
+                        + timeFmt(d[0].get('arrived')) + "&nbsp;ms" 
+                        + "</td></tr>" 
+                        + "<tr><td class='tip-key'>begin:</td><td class='tip-value'>" 
+                        + timeFmt(d[0].get('ts')) + "&nbsp;ms" 
+                        + "</td></tr>" 
+                        + "<tr><td class='tip-key'>end:</td><td class='tip-value'>" 
+                        + timeFmt(d[1].get('ts')) + "&nbsp;ms" 
+                        + "</td></tr>" 
+                        + "<tr><td class='tip-key'>seqno:</td><td class='tip-value'>" 
+                        + d[0].get('seqno') 
+                        + "</td></tr>" 
+                    + "</table>" 
+                ; 
+            }) 
+        ; 
+ 
+        reqSvg.call(tip); 
+ 
+        // create rectangles for cbs bands 
+        cbsbands = cbsSvg.selectAll(".chart") 
+          .data(data.cbsband, cbsKeyFunction) 
+          .enter() 
+          .append("rect") 
+            .attr("class", function(d) { 
+                return cbsStateClass[d[0].get('state')] || "bar"; 
+            }) 
+            .attr("y", 0) 
+            .attr("transform", cbsRectTransform) 
+            .attr("height", y.bandwidth()) 
+            .attr("width", function(d) { 
+                return Math.max(1*xPixel(), (x(d[1].get('ts')) - x(d[0].get('ts')))); 
+            }) 
+        ; 
+ 
+        cbsstates = zoomContainer1.append("g"); 
+        drawCbsStates(0); 
+ 
+        drawReqBands(); 
+ 
+        drawReqArrivals(); 
+ 
+        // container for non-zoomable elements 
+        fixedContainer = svg.append("g") 
+            .attr("width", width + margin.left + margin.right) 
+            .attr("height", height + margin.top + margin.bottom) 
+            .attr("transform", "translate(" + margin.left + ", " + margin.top + ")") 
+        ; 
+ 
+        // create x axis 
+        fixedContainer.append("g") 
+            .attr("class", "x axis") 
+            .attr("transform", "translate(0, " + (height - margin.top - margin.bottom) + ")") 
+          .transition() 
+            .call(xAxis) 
+        ; 
+ 
+        // create y axis 
+        fixedContainer.append("g") 
+            .attr("class", "y axis") 
+          .transition() 
+            .call(yAxis) 
+        ; 
+ 
+        // make y axis ticks draggable 
+        var ytickdrag = d3.drag() 
+            .on("drag", function(d) { 
+                var ypos = d3.event.y - margin.top; 
+                var index = Math.floor((ypos / y.step())); 
+                index = Math.min(Math.max(index, 0), this.initDomain.length - 1); 
+                if (index != this.curIndex) { 
+                    var newDomain = []; 
+                    for (var i = 0; i < this.initDomain.length; ++i) { 
+                        newDomain.push(this.initDomain[i]); 
+                    } 
+                    newDomain.splice(this.initIndex, 1); 
+                    newDomain.splice(index, 0, this.initDomain[this.initIndex]); 
+ 
+                    this.curIndex = index; 
+                    this.curDomain = newDomain; 
+                    y.domain(newDomain); 
+ 
+                    // rearange y scale and axis 
+                    svg.select("g.y.axis").transition().call(yAxis); 
+ 
+                    // rearange other stuff 
+                    cbsbands.transition().attr("transform", cbsRectTransform); 
+                    drawReqBands(); 
+                    drawReqArrivals(true); 
+                    drawCbsStates(-1, true); 
+                } 
+            }) 
+            .on("start", function(d) { 
+                var ypos = d3.event.y - margin.top; 
+                this.initIndex = Math.floor((ypos / y.step())); 
+                this.initDomain = y.domain(); 
+            }) 
+            .on("end", function(d) { 
+                svg.select("g.y.axis").call(yAxis); 
+            }) 
+        ; 
+        svg.selectAll("g.y.axis .tick") 
+            .call(ytickdrag) 
+        ; 
+ 
+        // right margin 
+        var rmargin = fixedContainer.append("g") 
+            .attr("id", "right-margin") 
+            .attr("transform", "translate(" + width + ", 0)") 
+        ; 
+        rmargin.append("rect") 
+            .attr("x", 0) 
+            .attr("y", 0) 
+            .attr("width", 1) 
+            .attr("height", height - margin.top - margin.bottom) 
+        ; 
+ 
+        // top margin 
+        var tmargin = fixedContainer.append("g") 
+            .attr("id", "top-margin") 
+            .attr("transform", "translate(0, 0)") 
+        ; 
+        tmargin.append("rect") 
+            .attr("x", 0) 
+            .attr("y", 0) 
+            .attr("width", width) 
+            .attr("height", 1) 
+        ; 
+ 
+        // ruler 
+        ruler = fixedContainer.append("g") 
+            .attr("id", "ruler") 
+            .attr("transform", "translate(0, 0)") 
+        ; 
+        ruler.append("rect") 
+            .attr("id", "ruler-line") 
+            .attr("x", 0) 
+            .attr("y", 0) 
+            .attr("width", "1") 
+            .attr("height", height - margin.top - margin.bottom + 8) 
+        ; 
+        ruler.append("rect") 
+            .attr("id", "bgrect") 
+            .attr("x", 0) 
+            .attr("y", 0) 
+            .attr("width", 0) 
+            .attr("height", 0) 
+            .style("fill", "white") 
+        ; 
+        ruler.append("text") 
+            .attr("x", 0) 
+            .attr("y", height - margin.top - margin.bottom + 16) 
+            .attr("dy", "0.71em") 
+            .text("0") 
+        ; 
+ 
+        svg.on('mousemove', function() { 
+            positionRuler(d3.event.pageX); 
+        }); 
+ 
+        // scroll handling 
+        window.onscroll = function myFunction() { 
+            documentBodyScrollLeft(document.body.scrollLeft); 
+            documentBodyScrollTop(document.body.scrollTop); 
+            var scroll = scrollParams(); 
+ 
+            svgChartContainer 
+                .attr("transform", "translate(" + margin.left 
+                                         + ", " + (margin.top + scroll.y1) + ")"); 
+            svgChart 
+                .attr("viewBox", "0 " + scroll.y1 + " " + width + " " + scroll.h) 
+                .attr("height", scroll.h); 
+            tmargin 
+                .attr("transform", "translate(0," + scroll.y1 + ")"); 
+            fixedContainer.select(".x.axis") 
+                .attr("transform", "translate(0," + scroll.y2 + ")"); 
+            rmargin.select("rect") 
+                .attr("y", scroll.y1) 
+                .attr("height", scroll.h); 
+            ruler.select("#ruler-line") 
+                .attr("y", scroll.y1) 
+                .attr("height", scroll.h); 
+ 
+            positionRuler(); 
+        } 
+ 
+        // draw chart 
+        schviz.draw(); 
+ 
+       // update to initiale state 
+        window.onscroll(0); 
+ 
+        return schviz; 
+    } 
+ 
+// private: 
+ 
+    var cbsKeyFunction = function(d) { 
+        return "cbs:" + 
+                d[0].get('ts').toString() + 
+                d[0].get('idx').toString() + 
+                d[1].get('ts').toString(); 
+    } 
+ 
+    var cbsStateKeyFunction = function(d) { 
+        return "cbsState:" + d.get('idx').toString(); 
+    } 
+ 
+    var reqKeyFunction = function(d) { 
+        return "req:" + 
+                d[0].get('ts').toString() + 
+                d[0].get('id').toString() + 
+                d[1].get('ts').toString(); 
+    } 
+ 
+    var reqStateKeyFunction = function(d) { 
+        return "reqState:" + d[0].get('id').toString(); 
+    } 
+ 
+    var cbsRectTransform = function(d) { 
+        return "translate(" + x(d[0].get('ts')) + "," + y(d[0].get('name')) + ")"; 
+    } 
+ 
+    var xPixel = function(d) { 
+        return xZoomed.invert(1) - xZoomed.invert(0); 
+    } 
+ 
+    var getEstCost = function(d) { 
+        return (d[1].get('state') == "DONE"? 
+            d[0].get('cost') : 
+            d[0].get('cost') - d[1].get('cost')); 
+    } 
+ 
+    var getRealCost = function(d) { 
+        return d[1].get('ts') - d[0].get('ts'); 
+    } 
+ 
+    var getEstTotalCost = function(d) { 
+        return d[0].get('initCost'); 
+    } 
+ 
+    var getRealTotalCost = function(d) { 
+        var realtotalcost = 0; 
+        var id = d[0].get('id'); 
+        data.reqband.filter(function(dd) { 
+            return dd[0].get('id') == id && dd[0].get('state') == "RUNNING"; 
+        }).forEach(function(dd) { 
+            realtotalcost += getRealCost(dd); 
+        }); 
+        return realtotalcost; 
+    } 
+ 
+    var getPartNo = function(d) { 
+        return d[0].get('partNo'); 
+    } 
+ 
+    var getPartCount = function(d) { 
+        var partCount = 0; 
+        var id = d[0].get('id'); 
+        data.reqband.filter(function(dd) { 
+            return dd[0].get('id') == id && dd[0].get('state') == "RUNNING"; 
+        }).forEach(function(dd) { 
+            partCount++; 
+        }); 
+        return partCount; 
+    } 
+ 
+    var initAxis = function() { 
+        x = d3.scaleLinear() 
+            .domain([timeDomainStartMs, timeDomainEndMs]) 
+            .range([0, width]) 
+            //.clamp(true); // dosn't work with zoom/pan 
+        xZoomed = x; 
+        y = d3.scaleBand() 
+            .domain(Object.values(data.cbs).map(x => x.name).sort()) 
+            .rangeRound([0, height - margin.top - margin.bottom]) 
+            .padding(0.5); 
+        xAxis = d3.axisBottom() 
+            .scale(x) 
+            //.tickSubdivide(true) 
+            .tickSize(8) 
+            .tickPadding(8); 
+        yAxis = d3.axisLeft() 
+            .scale(y) 
+            .tickSize(0); 
+    } 
+ 
+    var drawCbsStates = function(t0, smoothIn) { 
+        // Save/restore last t0 value 
+        if (!arguments.length || t0 == -1) { 
+            t0 = drawCbsStates.t0; 
+        } 
+        drawCbsStates.t0 = t0; 
+ 
+        var smooth = (arguments.length > 1? smoothIn: false); 
+ 
+        var pxl = xPixel(); 
+ 
+        // find cbsbands containing given instant t0 and return left state 
+        function findCbsState(data) { 
+            return data.cbsband.filter(function(d) { 
+                return d[0].get('ts') <= t0 && t0 < d[1].get('ts'); 
+            }).map(function(d) { 
+                return d[0]; 
+            }); 
+        } 
+        var cbsStateData = findCbsState(data); 
+ 
+        // create/update/remove bands for cbs max_budget 
+        var updCurBudget = cbsstates.selectAll("rect.cbs-active") 
+          .data(cbsStateData, cbsStateKeyFunction); 
+        updCurBudget.exit().remove(); 
+        updCurBudget.enter().append("rect") 
+            .attr("class", "cbs-active") 
+          .merge(updCurBudget) // enter + update 
+          .transition().duration(smooth ? transDuration : 0) 
+            .attr("transform", function(d) { 
+                return "translate(" + x(t0) + "," + y(d.get('name')) + ")"; 
+            }) 
+            .attr("y", y.bandwidth() * (1+1/8) + 4) 
+            .attr("height", y.bandwidth() / 8) 
+            .attr("width", function(d) { 
+                var budget = d.get('max_budget'); 
+                return Math.max(0, x(budget) - x(0)); 
+            }) 
+        ; 
+ 
+        // create/update/remove bands for cbs cur_budget 
+        var updCurBudget = cbsstates.selectAll("rect.cbs-running") 
+          .data(cbsStateData, cbsStateKeyFunction); 
+        updCurBudget.exit().remove(); 
+        updCurBudget.enter().append("rect") 
+            .attr("class", "cbs-running") 
+          .merge(updCurBudget) // enter + update 
+          .transition().duration(smooth ? transDuration : 0) 
+            .attr("transform", function(d) { 
+                return "translate(" + x(t0) + "," + y(d.get('name')) + ")"; 
+            }) 
+            .attr("y", y.bandwidth() * (1+1/8) + 4) 
+            .attr("height", y.bandwidth() / 8) 
+            .attr("width", function(d) { 
+                var budget = d.get('cur_budget'); 
+                if (d.get('state') == "RUNNING") { 
+                    budget -= t0 - d.get('ts'); 
+                } 
+                return Math.max(0, x(budget) - x(0)); 
+            }) 
+        ; 
+ 
+        // create/update/remove bars for cbs deadline 
+        var updDeadline = cbsstates.selectAll("line") 
+          .data(cbsStateData, cbsStateKeyFunction); 
+        updDeadline.exit().remove(); 
+        updDeadline.enter().append("line") 
+            .attr("class", "arrow-deadline") 
+            //.attr("marker-end", "url(#arrow)") 
+            .attr("transform", function(d) { 
+                return "translate(" 
+                    + x(d.get('deadline')) + "," 
+                    + y(d.get('name')) + ")scale(" + pxl + ",1)"; 
+            }) 
+          .merge(updDeadline) // enter + update 
+          .transition().duration(smooth ? transDuration : 0) 
+            .attr("x1", 0) 
+            .attr("x2", 0) 
+            .attr("y1", 0) 
             .attr("y2", y.bandwidth() * 1.4)
-            .attr("transform", function(d) {
-                return "translate("
-                    + x(d.get('deadline')) + ","
-                    + y(d.get('name')) + ")scale(" + pxl + ",1)";
-            })
-        ;
-
-        // find reqbands containing given instant t0 and return left state
-        function findReqState(data) {
-            // find cbsbands containing given instant t0 and return left state
-            return data.reqband.filter(function(d) {
-                return d[0].get('ts') <= t0 && t0 < d[1].get('ts');
-            }).map(function(d) {
-                var cbsIdx = d[0].get('cbsIdx');
-                var curCbsState = cbsStateData.find(function(x) {return x.get('idx') == cbsIdx;});
-                var realcost = curCbsState.get('band')[0].get('ts') - curCbsState.get('band')[1].get('ts');
-                var estcost = curCbsState.get('band')[0].get('costOut') - curCbsState.get('band')[1].get('costOut');
-                var estToRealCoef = estcost / realcost;
-                return [d[0], curCbsState, estToRealCoef];
-            });
-        }
-        var reqStateData = findReqState(data);
-
-        // create/update/remove bands for req cost
-        var updReqCost = cbsstates.selectAll("rect.req-real")
-          .data(reqStateData, reqStateKeyFunction);
-        updReqCost.exit().remove();
-        updReqCost.enter().append("rect")
-            .attr("class", "req-real")
-          .merge(updReqCost) // enter + update
-          .transition().duration(smooth ? transDuration : 0)
-            .attr("transform", function(d) {
-                var c = d[1];
-                var costOut = c.get('costOut');
-                if (c.get('hasRunningRequest')) {
-                    costOut += d[2] * (t0 - c.get('ts'));
-                }
-                return "translate(" + x(t0 + d[0].get('queuePos') - costOut)
-                              + "," + y(c.get('name')) + ")";
-            })
-            .attr("x", pxl)
-            .attr("y", y.bandwidth() * (1) + 2)
-            .attr("height", y.bandwidth() * (1/8))
-            .attr("width", function(d) {
-                var initCost = d[0].get('initCost');
-                return Math.max(1*pxl, x(initCost) - x(0) - 2*pxl);
-            })
-        ;
-    }
-
-    var drawReqBands = function() {
-        var pxl = xPixel();
-
-        function reqbandTransform(d) {
-            return "translate(" + x(d[0].get('ts')) + "," + y(d[0].get('cbsName')) + ")";
-        }
-
-        function cutPoints(x, dx, y, dy) {
-            return      (x     ) + "," + (y + 0.20 * dy)
-                + " " + (x - dx) + "," + (y + 0.35 * dy)
-                + " " + (x + dx) + "," + (y + 0.65 * dy)
-                + " " + (x     ) + "," + (y + 0.80 * dy)
-            ;
-        }
-
-        function cutHalfPoints(x, dx, y, dy) {
-            return      (x + dx) + "," + (y + 0.30 * dy)
-                + " " + (x     ) + "," + (y + 0.60 * dy)
-            ;
-        }
-
-        var h = y.bandwidth() * 0.6;
-        var y0 = y.bandwidth() * 0.2;
-        var dx = 5*pxl;
-        function reqbandPoints(d) {
-            var w = Math.max(1*pxl, (x(d[1].get('ts')) - x(d[0].get('ts'))) - 2*pxl);
-            var x1 = pxl;
-            var x2 = x1 + w;
-            var y1 = y0;
-            var y2 = y1 + h;
-            var leftCut = (d[0].get('cost') != d[0].get('initCost'));
-            var rightCut = (d[1].get('state') != "DONE");
-
-            return      x1 + "," + y1
-                + " " + (leftCut? cutPoints(x1, dx, y1, y2-y1) : "")
-                + " " + x1 + "," + y2
-                + " " + x2 + "," + y2
-                + " " + (rightCut? cutPoints(x2, -dx, y2, y1-y2) : "")
-                + " " + x2 + "," + y1
-                ;
-        }
-
-        function reqband2Points(d) {
-            var w = Math.max(1*pxl, (x(d[1].get('ts')) - x(d[0].get('ts'))) - 2*pxl);
-            var x1 = pxl;
-            var x2 = x1 + w;
-            var y1 = y0;
-            var y2 = y1 + h;
-            var leftCut = (d[0].get('cost') != d[0].get('initCost'));
-            var rightCut = (d[1].get('state') != "DONE");
-
-            var estcost = getEstCost(d);
-            var realcost = getRealCost(d);
-
-            var cutFunc = cutPoints;
-            var delta = estcost - realcost;
-            if (delta === 0) {
-                return ""; // do not draw anything
-            } else if (delta > 0) { // overestimation
-                x2 = x1 + delta / estcost * w;
-                y1 += h / 2;
-                rightCut = false;
-                cutFunc = cutHalfPoints;
-            } else { // overrun
-                x1 = x2 + delta / realcost * w;
-                leftCut = false;
-            }
-
-            return      x1 + "," + y1
-                + " " + (leftCut? cutFunc(x1, dx, y1, y2-y1) : "")
-                + " " + x1 + "," + y2
-                + " " + x2 + "," + y2
-                + " " + (rightCut? cutFunc(x2, -dx, y2, y1-y2) : "")
-                + " " + x2 + "," + y1
-                ;
-        }
-
-        function reqbandKindPoints(d) {
-            var w = Math.max(1*pxl, Math.min(x(d[1].get('ts')) - x(d[0].get('ts')), 10*pxl));
-            var x1 = pxl;
-            var x2 = x1 + w;
-            var y1 = y0;
-            var y2 = y1 + h;
-
-            if (d[0].get('kind') == "WRITE") {
-                var cx = (x1 + x2) / 2;
-                var cy = (y1 * 3/4 + y2 * 1/4);
-                var dx = (cx - x1) * 0.8;
-                var dy = (cy - y1) * 0.8;
-                return      (cx - dx) + "," + (cy     )
-                    + " " + (cx     ) + "," + (cy - dy)
-                    + " " + (cx + dx) + "," + (cy     )
-                    + " " + (cx     ) + "," + (cy + dy)
-                    ;
-            } else {
-                return "";
-            }
-        }
-
-        // create polygons for req bands (real part)
-        var reqbandsData = data.reqband.filter(function(d) {
-            return d[0].get('state') == "RUNNING";}
-        );
-        var reqbandsUpd = reqSvg.selectAll("polygon.req-real")
-          .data(reqbandsData, reqKeyFunction);
-        reqbandsUpd.exit().remove();
-        reqbandsUpd.enter().append("polygon")
-            .attr("class", function(d) {
-                return "req-real reqband-" + d[0].get('id');
-            })
-            .on('mouseover', function(d) {
-                tip.show(d);
-                reqSvg.selectAll(".reqband-" + d[0].get('id'))
-                    .classed("req-real-hover", true);
-                reqSvg.selectAll(".reqband2-" + d[0].get('id'))
-                    .classed("req-est-hover", true);
-                reqSvg.selectAll(".reqarrival-" + d[0].get('id'))
-                    .classed("arrow-arrival-hover", true)
-                    .raise();
-            })
-            .on('mouseout', function(d) {
-                tip.hide(d);
-                reqSvg.selectAll(".reqband-" + d[0].get('id'))
-                    .classed("req-real-hover", false);
-                reqSvg.selectAll(".reqband2-" + d[0].get('id'))
-                    .classed("req-est-hover", false);
-                reqSvg.selectAll(".reqarrival-" + d[0].get('id'))
-                    .classed("arrow-arrival-hover", false);
-            })
-            .attr("transform", reqbandTransform)
-          .merge(reqbandsUpd) // enter + update
-            .attr("points", reqbandPoints)
-          .transition()
-            .attr("transform", reqbandTransform)
-        ;
-
-        // create polygons for req bands (real/est diff)
-        var reqbands2Upd = reqSvg.selectAll("polygon.req-est")
-          .data(reqbandsData, reqKeyFunction);
-        reqbands2Upd.exit().remove();
-        reqbands2Upd.enter().append("polygon")
-            .attr("class", function(d) {
-                return "req-est reqband2-" + d[0].get('id');
-            })
-            .attr("transform", reqbandTransform)
-          .merge(reqbands2Upd) // enter + update
-            .attr("points", reqband2Points)
-          .transition()
-            .attr("transform", reqbandTransform)
-        ;
-
-        // create polygons for req kind
-        var reqbandsKindUpd = reqSvg.selectAll("polygon.req-kind")
-          .data(reqbandsData, reqKeyFunction);
-        reqbandsKindUpd.exit().remove();
-        reqbandsKindUpd.enter().append("polygon")
-            .attr("class", function(d) {
-                return "req-kind reqbandkind-" + d[0].get('id');
-            })
-            .attr("transform", reqbandTransform)
-          .merge(reqbandsKindUpd) // enter + update
-            .attr("points", reqbandKindPoints)
-          .transition()
-            .attr("transform", reqbandTransform)
-        ;
-    }
-
-    var drawReqArrivals = function(smoothIn) {
-        var smooth = (arguments.length > 0? smoothIn: false);
-
-        // create/update/remove bars for req arrivals
-        var updArrivals = reqSvg.selectAll("line.arrow-arrival")
-          .data(data.reqband.filter(function(d) {
-              return d[0].get('arrived') === d[0].get('ts');
-          }), reqKeyFunction);
-        updArrivals.exit().remove();
-        updArrivals.enter().append("line")
-            .attr("class", function(d) {
-                return "arrow-arrival reqarrival-" + d[0].get('id');
-            })
-            //.attr("marker-end", "url(#arrow)")
-            .attr("x1", 0)
-            .attr("x2", 0)
-            .attr("y1", y.bandwidth() * 0.5)
+            .attr("transform", function(d) { 
+                return "translate(" 
+                    + x(d.get('deadline')) + "," 
+                    + y(d.get('name')) + ")scale(" + pxl + ",1)"; 
+            }) 
+        ; 
+ 
+        // find reqbands containing given instant t0 and return left state 
+        function findReqState(data) { 
+            // find cbsbands containing given instant t0 and return left state 
+            return data.reqband.filter(function(d) { 
+                return d[0].get('ts') <= t0 && t0 < d[1].get('ts'); 
+            }).map(function(d) { 
+                var cbsIdx = d[0].get('cbsIdx'); 
+                var curCbsState = cbsStateData.find(function(x) {return x.get('idx') == cbsIdx;}); 
+                var realcost = curCbsState.get('band')[0].get('ts') - curCbsState.get('band')[1].get('ts'); 
+                var estcost = curCbsState.get('band')[0].get('costOut') - curCbsState.get('band')[1].get('costOut'); 
+                var estToRealCoef = estcost / realcost; 
+                return [d[0], curCbsState, estToRealCoef]; 
+            }); 
+        } 
+        var reqStateData = findReqState(data); 
+ 
+        // create/update/remove bands for req cost 
+        var updReqCost = cbsstates.selectAll("rect.req-real") 
+          .data(reqStateData, reqStateKeyFunction); 
+        updReqCost.exit().remove(); 
+        updReqCost.enter().append("rect") 
+            .attr("class", "req-real") 
+          .merge(updReqCost) // enter + update 
+          .transition().duration(smooth ? transDuration : 0) 
+            .attr("transform", function(d) { 
+                var c = d[1]; 
+                var costOut = c.get('costOut'); 
+                if (c.get('hasRunningRequest')) { 
+                    costOut += d[2] * (t0 - c.get('ts')); 
+                } 
+                return "translate(" + x(t0 + d[0].get('queuePos') - costOut) 
+                              + "," + y(c.get('name')) + ")"; 
+            }) 
+            .attr("x", pxl) 
+            .attr("y", y.bandwidth() * (1) + 2) 
+            .attr("height", y.bandwidth() * (1/8)) 
+            .attr("width", function(d) { 
+                var initCost = d[0].get('initCost'); 
+                return Math.max(1*pxl, x(initCost) - x(0) - 2*pxl); 
+            }) 
+        ; 
+    } 
+ 
+    var drawReqBands = function() { 
+        var pxl = xPixel(); 
+ 
+        function reqbandTransform(d) { 
+            return "translate(" + x(d[0].get('ts')) + "," + y(d[0].get('cbsName')) + ")"; 
+        } 
+ 
+        function cutPoints(x, dx, y, dy) { 
+            return      (x     ) + "," + (y + 0.20 * dy) 
+                + " " + (x - dx) + "," + (y + 0.35 * dy) 
+                + " " + (x + dx) + "," + (y + 0.65 * dy) 
+                + " " + (x     ) + "," + (y + 0.80 * dy) 
+            ; 
+        } 
+ 
+        function cutHalfPoints(x, dx, y, dy) { 
+            return      (x + dx) + "," + (y + 0.30 * dy) 
+                + " " + (x     ) + "," + (y + 0.60 * dy) 
+            ; 
+        } 
+ 
+        var h = y.bandwidth() * 0.6; 
+        var y0 = y.bandwidth() * 0.2; 
+        var dx = 5*pxl; 
+        function reqbandPoints(d) { 
+            var w = Math.max(1*pxl, (x(d[1].get('ts')) - x(d[0].get('ts'))) - 2*pxl); 
+            var x1 = pxl; 
+            var x2 = x1 + w; 
+            var y1 = y0; 
+            var y2 = y1 + h; 
+            var leftCut = (d[0].get('cost') != d[0].get('initCost')); 
+            var rightCut = (d[1].get('state') != "DONE"); 
+ 
+            return      x1 + "," + y1 
+                + " " + (leftCut? cutPoints(x1, dx, y1, y2-y1) : "") 
+                + " " + x1 + "," + y2 
+                + " " + x2 + "," + y2 
+                + " " + (rightCut? cutPoints(x2, -dx, y2, y1-y2) : "") 
+                + " " + x2 + "," + y1 
+                ; 
+        } 
+ 
+        function reqband2Points(d) { 
+            var w = Math.max(1*pxl, (x(d[1].get('ts')) - x(d[0].get('ts'))) - 2*pxl); 
+            var x1 = pxl; 
+            var x2 = x1 + w; 
+            var y1 = y0; 
+            var y2 = y1 + h; 
+            var leftCut = (d[0].get('cost') != d[0].get('initCost')); 
+            var rightCut = (d[1].get('state') != "DONE"); 
+ 
+            var estcost = getEstCost(d); 
+            var realcost = getRealCost(d); 
+ 
+            var cutFunc = cutPoints; 
+            var delta = estcost - realcost; 
+            if (delta === 0) { 
+                return ""; // do not draw anything 
+            } else if (delta > 0) { // overestimation 
+                x2 = x1 + delta / estcost * w; 
+                y1 += h / 2; 
+                rightCut = false; 
+                cutFunc = cutHalfPoints; 
+            } else { // overrun 
+                x1 = x2 + delta / realcost * w; 
+                leftCut = false; 
+            } 
+ 
+            return      x1 + "," + y1 
+                + " " + (leftCut? cutFunc(x1, dx, y1, y2-y1) : "") 
+                + " " + x1 + "," + y2 
+                + " " + x2 + "," + y2 
+                + " " + (rightCut? cutFunc(x2, -dx, y2, y1-y2) : "") 
+                + " " + x2 + "," + y1 
+                ; 
+        } 
+ 
+        function reqbandKindPoints(d) { 
+            var w = Math.max(1*pxl, Math.min(x(d[1].get('ts')) - x(d[0].get('ts')), 10*pxl)); 
+            var x1 = pxl; 
+            var x2 = x1 + w; 
+            var y1 = y0; 
+            var y2 = y1 + h; 
+ 
+            if (d[0].get('kind') == "WRITE") { 
+                var cx = (x1 + x2) / 2; 
+                var cy = (y1 * 3/4 + y2 * 1/4); 
+                var dx = (cx - x1) * 0.8; 
+                var dy = (cy - y1) * 0.8; 
+                return      (cx - dx) + "," + (cy     ) 
+                    + " " + (cx     ) + "," + (cy - dy) 
+                    + " " + (cx + dx) + "," + (cy     ) 
+                    + " " + (cx     ) + "," + (cy + dy) 
+                    ; 
+            } else { 
+                return ""; 
+            } 
+        } 
+ 
+        // create polygons for req bands (real part) 
+        var reqbandsData = data.reqband.filter(function(d) { 
+            return d[0].get('state') == "RUNNING";} 
+        ); 
+        var reqbandsUpd = reqSvg.selectAll("polygon.req-real") 
+          .data(reqbandsData, reqKeyFunction); 
+        reqbandsUpd.exit().remove(); 
+        reqbandsUpd.enter().append("polygon") 
+            .attr("class", function(d) { 
+                return "req-real reqband-" + d[0].get('id'); 
+            }) 
+            .on('mouseover', function(d) { 
+                tip.show(d); 
+                reqSvg.selectAll(".reqband-" + d[0].get('id')) 
+                    .classed("req-real-hover", true); 
+                reqSvg.selectAll(".reqband2-" + d[0].get('id')) 
+                    .classed("req-est-hover", true); 
+                reqSvg.selectAll(".reqarrival-" + d[0].get('id')) 
+                    .classed("arrow-arrival-hover", true) 
+                    .raise(); 
+            }) 
+            .on('mouseout', function(d) { 
+                tip.hide(d); 
+                reqSvg.selectAll(".reqband-" + d[0].get('id')) 
+                    .classed("req-real-hover", false); 
+                reqSvg.selectAll(".reqband2-" + d[0].get('id')) 
+                    .classed("req-est-hover", false); 
+                reqSvg.selectAll(".reqarrival-" + d[0].get('id')) 
+                    .classed("arrow-arrival-hover", false); 
+            }) 
+            .attr("transform", reqbandTransform) 
+          .merge(reqbandsUpd) // enter + update 
+            .attr("points", reqbandPoints) 
+          .transition() 
+            .attr("transform", reqbandTransform) 
+        ; 
+ 
+        // create polygons for req bands (real/est diff) 
+        var reqbands2Upd = reqSvg.selectAll("polygon.req-est") 
+          .data(reqbandsData, reqKeyFunction); 
+        reqbands2Upd.exit().remove(); 
+        reqbands2Upd.enter().append("polygon") 
+            .attr("class", function(d) { 
+                return "req-est reqband2-" + d[0].get('id'); 
+            }) 
+            .attr("transform", reqbandTransform) 
+          .merge(reqbands2Upd) // enter + update 
+            .attr("points", reqband2Points) 
+          .transition() 
+            .attr("transform", reqbandTransform) 
+        ; 
+ 
+        // create polygons for req kind 
+        var reqbandsKindUpd = reqSvg.selectAll("polygon.req-kind") 
+          .data(reqbandsData, reqKeyFunction); 
+        reqbandsKindUpd.exit().remove(); 
+        reqbandsKindUpd.enter().append("polygon") 
+            .attr("class", function(d) { 
+                return "req-kind reqbandkind-" + d[0].get('id'); 
+            }) 
+            .attr("transform", reqbandTransform) 
+          .merge(reqbandsKindUpd) // enter + update 
+            .attr("points", reqbandKindPoints) 
+          .transition() 
+            .attr("transform", reqbandTransform) 
+        ; 
+    } 
+ 
+    var drawReqArrivals = function(smoothIn) { 
+        var smooth = (arguments.length > 0? smoothIn: false); 
+ 
+        // create/update/remove bars for req arrivals 
+        var updArrivals = reqSvg.selectAll("line.arrow-arrival") 
+          .data(data.reqband.filter(function(d) { 
+              return d[0].get('arrived') === d[0].get('ts'); 
+          }), reqKeyFunction); 
+        updArrivals.exit().remove(); 
+        updArrivals.enter().append("line") 
+            .attr("class", function(d) { 
+                return "arrow-arrival reqarrival-" + d[0].get('id'); 
+            }) 
+            //.attr("marker-end", "url(#arrow)") 
+            .attr("x1", 0) 
+            .attr("x2", 0) 
+            .attr("y1", y.bandwidth() * 0.5) 
             .attr("y2", -y.bandwidth() * 0.4)
-            .attr("transform", function(d) {
-                return "translate("
-                    + x(d[0].get('arrived')) + ","
-                    + y(d[0].get('cbsName')) + ")scale(" + xPixel() + ",1)";
-            })
-          .merge(updArrivals) // enter + update
-          .transition().duration(smooth ? transDuration : 0)
-            .attr("transform", function(d) {
-                return "translate("
-                    + x(d[0].get('arrived')) + ","
-                    + y(d[0].get('cbsName')) + ")scale(" + xPixel() + ",1)";
-            })
-        ;
-    }
-
-    // slow function wrapper
-    var documentBodyScrollLeft = function(value) {
-        // return document.body.scrollLeft;
-        if (!arguments.length) {
-            if (documentBodyScrollLeft.value === undefined) {
-                documentBodyScrollLeft.value = document.body.scrollLeft;
-            }
-            return documentBodyScrollLeft.value;
-        } else {
-            documentBodyScrollLeft.value = value;
-        }
-    }
-
-    // slow function wrapper
-    var documentBodyScrollTop = function(value) {
-        // return document.body.scrollTop;
-        if (!arguments.length) {
-            if (!documentBodyScrollTop.value === undefined) {
-                documentBodyScrollTop.value = document.body.scrollTop;
-            }
-            return documentBodyScrollTop.value;
-        } else {
-            documentBodyScrollTop.value = value;
-        }
-    }
-
-    var scrollParams = function() {
-        var y1 = documentBodyScrollTop();
-        var y2 = y1 + window.innerHeight - margin.footer;
-        y2 = Math.min(y2, height - margin.top - margin.bottom);
-        var h = y2 - y1;
-        return {
-            y1: y1,
-            y2: y2,
-            h: h
-        };
-    }
-
-    var posTextFormat = d3.format(".1f");
-
-    var positionRuler = function(pageX) {
-        if (!arguments.length) {
-            pageX = positionRuler.pageX || 0;
-        } else {
-            positionRuler.pageX = pageX;
-        }
-
-        // x-coordinate
-        var xpos = pageX - margin.left + 1;
-        var tpos = xZoomed.invert(xpos);
-        tpos = Math.min(Math.max(tpos, xZoomed.invert(0)), xZoomed.invert(width));
-        ruler.attr("transform", "translate(" + xZoomed(tpos) + ", 0)");
-        var posText = posTextFormat(tpos);
-
-        // scroll-related
-        var scroll = scrollParams();
-
-        var text = ruler.select("text")
-            .attr("y", scroll.y2 + 16)
-        ;
+            .attr("transform", function(d) { 
+                return "translate(" 
+                    + x(d[0].get('arrived')) + "," 
+                    + y(d[0].get('cbsName')) + ")scale(" + xPixel() + ",1)"; 
+            }) 
+          .merge(updArrivals) // enter + update 
+          .transition().duration(smooth ? transDuration : 0) 
+            .attr("transform", function(d) { 
+                return "translate(" 
+                    + x(d[0].get('arrived')) + "," 
+                    + y(d[0].get('cbsName')) + ")scale(" + xPixel() + ",1)"; 
+            }) 
+        ; 
+    } 
+ 
+    // slow function wrapper 
+    var documentBodyScrollLeft = function(value) { 
+        // return document.body.scrollLeft; 
+        if (!arguments.length) { 
+            if (documentBodyScrollLeft.value === undefined) { 
+                documentBodyScrollLeft.value = document.body.scrollLeft; 
+            } 
+            return documentBodyScrollLeft.value; 
+        } else { 
+            documentBodyScrollLeft.value = value; 
+        } 
+    } 
+ 
+    // slow function wrapper 
+    var documentBodyScrollTop = function(value) { 
+        // return document.body.scrollTop; 
+        if (!arguments.length) { 
+            if (!documentBodyScrollTop.value === undefined) { 
+                documentBodyScrollTop.value = document.body.scrollTop; 
+            } 
+            return documentBodyScrollTop.value; 
+        } else { 
+            documentBodyScrollTop.value = value; 
+        } 
+    } 
+ 
+    var scrollParams = function() { 
+        var y1 = documentBodyScrollTop(); 
+        var y2 = y1 + window.innerHeight - margin.footer; 
+        y2 = Math.min(y2, height - margin.top - margin.bottom); 
+        var h = y2 - y1; 
+        return { 
+            y1: y1, 
+            y2: y2, 
+            h: h 
+        }; 
+    } 
+ 
+    var posTextFormat = d3.format(".1f"); 
+
+    var positionRuler = function(pageX) { 
+        if (!arguments.length) { 
+            pageX = positionRuler.pageX || 0; 
+        } else { 
+            positionRuler.pageX = pageX; 
+        } 
+ 
+        // x-coordinate 
+        var xpos = pageX - margin.left + 1; 
+        var tpos = xZoomed.invert(xpos); 
+        tpos = Math.min(Math.max(tpos, xZoomed.invert(0)), xZoomed.invert(width)); 
+        ruler.attr("transform", "translate(" + xZoomed(tpos) + ", 0)"); 
+        var posText = posTextFormat(tpos); 
+ 
+        // scroll-related 
+        var scroll = scrollParams(); 
+ 
+        var text = ruler.select("text") 
+            .attr("y", scroll.y2 + 16) 
+        ; 
 
         // getBBox() is very slow, so compute symbol width once
-        var xpadding = 5;
-        var ypadding = 5;
-        if (!positionRuler.bbox) {
-            positionRuler.bbox = text.node().getBBox();
-        }
-
-        text.text(posText);
-        var textWidth = 10 * posText.length;
-        ruler.select("#bgrect")
-            .attr("x", -textWidth/2 - xpadding)
-            .attr("y", positionRuler.bbox.y - ypadding)
-            .attr("width", textWidth + (xpadding*2))
-            .attr("height", positionRuler.bbox.height + (ypadding*2))
-        ;
-
-        drawCbsStates(tpos);
-    }
-
-    var beginParseCbs = function(data, frame, cbs) {
-        if (cbs.idx === undefined) {
-            alert("'idx' is not set for cbs in frame:\n" + JSON.stringify(frame));
-        }
-
-        // create cbs if required
-        var idx = +cbs.idx;
-        if (!data.cbs.hasOwnProperty(idx)) {
-            var c = {};
-
-            // initialize new cbs info
-            c.idx = idx;
-            c.band = null;
-            c.ts = +frame.ts * timeUnit;
-            c.name = cbs.name || ("cbs" + frame.idx);
-            c.max_budget = (+cbs.max_budget || 0) * timeUnit;
-            c.period = (+cbs.period || 0) * timeUnit;
-            c.cur_budget = (+cbs.cur_budget || 0) * timeUnit;
-            c.deadline = (+cbs.deadline || 0) * timeUnit;
-            c.state = cbs.state || "IDLE";
-            c.reqIn = 0;
-            c.reqOut = 0;
-            c.costIn = 0;
-            c.costOut = 0;
-            c.runningTime = 0;
-            c.idleTime = 0;
-            c.activeTime = 0;
-            c.depletedTime = 0;
-            c.hasRunningRequest = false;
-
-            data.cbs[idx] = c;
-        } else {
-            // update current req info
-            var c = data.cbs[idx];
-
-            // deep copy current request state as the first band's element
-            c.band = [];
-            c.band.push(d3.map(c));
-
-            // update current req info
-            c.ts = +frame.ts * timeUnit;
-            c.hasRunningRequest = false;
-            if (cbs.hasOwnProperty('name')) { c.name = cbs.name; }
-            if (cbs.hasOwnProperty('max_budget')) { c.max_budget = +cbs.max_budget * timeUnit; }
-            if (cbs.hasOwnProperty('period')) { c.period = +cbs.period * timeUnit; }
-            if (cbs.hasOwnProperty('cur_budget')) { c.cur_budget = +cbs.cur_budget * timeUnit; }
-            if (cbs.hasOwnProperty('deadline')) { c.deadline = +cbs.deadline * timeUnit; }
-            if (cbs.hasOwnProperty('state')) { c.state = cbs.state; }
-        }
-    }
-
-    var endParseCbs = function(data, frame, cbs) {
-        // create cbs if required
-        var idx = +cbs.idx;
-        var c = data.cbs[idx];
-        if (c.band !== null) {
-            // deep copy new request state as the second band's element
-            c.band.push(d3.map(c));
-            if (c.band[0].get('ts') < c.band[1].get('ts')) {
-                data.cbsband.push(c.band);
-            }
-        }
-    }
-
-    var beginParseCbsReq = function(data, frame, cbs, req) {
-        if (req.id === undefined) {
-            alert("'id' is not set for req in frame's cbs:\n" + JSON.stringify(cbs));
-        }
-
-        var idx = +cbs.idx;
-        var c = data.cbs[idx];
-
-        var id = +req.id;
-        if (!data.req.hasOwnProperty(id)) {
-            var r = {};
-
-            // initialize new req info
-            r.id = id;
-            r.band = null;
-            r.cbsIdx = idx;
-            r.cbsName = c.name;
-            r.ts = +frame.ts * timeUnit;
-            r.cost = (+req.cost || 0) * timeUnit;
-            r.initCost = r.cost;
-            r.seqno = +req.seqno || 0;
-            r.state = req.state || "PENDING";
-            r.kind = req.kind || "REQUEST";
-            r.queuePos = c.costIn;
-            r.arrived = r.ts;
-            r.partNo = 0;
-
-            // update cbs statistics
-            c.reqIn++;
-            c.costIn += r.cost;
-            if (r.state == "RUNNING") {
-                c.hasRunningRequest = true;
-            }
-
-            data.req[id] = r;
-        } else {
-            // update current req info
-            var r = data.req[id];
+        var xpadding = 5; 
+        var ypadding = 5; 
+        if (!positionRuler.bbox) { 
+            positionRuler.bbox = text.node().getBBox(); 
+        } 
+
+        text.text(posText); 
+        var textWidth = 10 * posText.length; 
+        ruler.select("#bgrect") 
+            .attr("x", -textWidth/2 - xpadding) 
+            .attr("y", positionRuler.bbox.y - ypadding) 
+            .attr("width", textWidth + (xpadding*2)) 
+            .attr("height", positionRuler.bbox.height + (ypadding*2)) 
+        ; 
+ 
+        drawCbsStates(tpos); 
+    } 
+ 
+    var beginParseCbs = function(data, frame, cbs) { 
+        if (cbs.idx === undefined) { 
+            alert("'idx' is not set for cbs in frame:\n" + JSON.stringify(frame)); 
+        } 
+ 
+        // create cbs if required 
+        var idx = +cbs.idx; 
+        if (!data.cbs.hasOwnProperty(idx)) { 
+            var c = {}; 
+ 
+            // initialize new cbs info 
+            c.idx = idx; 
+            c.band = null; 
+            c.ts = +frame.ts * timeUnit; 
+            c.name = cbs.name || ("cbs" + frame.idx); 
+            c.max_budget = (+cbs.max_budget || 0) * timeUnit; 
+            c.period = (+cbs.period || 0) * timeUnit; 
+            c.cur_budget = (+cbs.cur_budget || 0) * timeUnit; 
+            c.deadline = (+cbs.deadline || 0) * timeUnit; 
+            c.state = cbs.state || "IDLE"; 
+            c.reqIn = 0; 
+            c.reqOut = 0; 
+            c.costIn = 0; 
+            c.costOut = 0; 
+            c.runningTime = 0; 
+            c.idleTime = 0; 
+            c.activeTime = 0; 
+            c.depletedTime = 0; 
+            c.hasRunningRequest = false; 
+ 
+            data.cbs[idx] = c; 
+        } else { 
+            // update current req info 
+            var c = data.cbs[idx]; 
+ 
+            // deep copy current request state as the first band's element 
+            c.band = []; 
+            c.band.push(d3.map(c)); 
+ 
+            // update current req info 
+            c.ts = +frame.ts * timeUnit; 
+            c.hasRunningRequest = false; 
+            if (cbs.hasOwnProperty('name')) { c.name = cbs.name; } 
+            if (cbs.hasOwnProperty('max_budget')) { c.max_budget = +cbs.max_budget * timeUnit; } 
+            if (cbs.hasOwnProperty('period')) { c.period = +cbs.period * timeUnit; } 
+            if (cbs.hasOwnProperty('cur_budget')) { c.cur_budget = +cbs.cur_budget * timeUnit; } 
+            if (cbs.hasOwnProperty('deadline')) { c.deadline = +cbs.deadline * timeUnit; } 
+            if (cbs.hasOwnProperty('state')) { c.state = cbs.state; } 
+        } 
+    } 
+ 
+    var endParseCbs = function(data, frame, cbs) { 
+        // create cbs if required 
+        var idx = +cbs.idx; 
+        var c = data.cbs[idx]; 
+        if (c.band !== null) { 
+            // deep copy new request state as the second band's element 
+            c.band.push(d3.map(c)); 
+            if (c.band[0].get('ts') < c.band[1].get('ts')) { 
+                data.cbsband.push(c.band); 
+            } 
+        } 
+    } 
+ 
+    var beginParseCbsReq = function(data, frame, cbs, req) { 
+        if (req.id === undefined) { 
+            alert("'id' is not set for req in frame's cbs:\n" + JSON.stringify(cbs)); 
+        } 
+ 
+        var idx = +cbs.idx; 
+        var c = data.cbs[idx]; 
+ 
+        var id = +req.id; 
+        if (!data.req.hasOwnProperty(id)) { 
+            var r = {}; 
+ 
+            // initialize new req info 
+            r.id = id; 
+            r.band = null; 
+            r.cbsIdx = idx; 
+            r.cbsName = c.name; 
+            r.ts = +frame.ts * timeUnit; 
+            r.cost = (+req.cost || 0) * timeUnit; 
+            r.initCost = r.cost; 
+            r.seqno = +req.seqno || 0; 
+            r.state = req.state || "PENDING"; 
+            r.kind = req.kind || "REQUEST"; 
+            r.queuePos = c.costIn; 
+            r.arrived = r.ts; 
+            r.partNo = 0; 
+ 
+            // update cbs statistics 
+            c.reqIn++; 
+            c.costIn += r.cost; 
+            if (r.state == "RUNNING") { 
+                c.hasRunningRequest = true; 
+            } 
+ 
+            data.req[id] = r; 
+        } else { 
+            // update current req info 
+            var r = data.req[id]; 
             if (r.state == "PENDING" && (
                 (req.hasOwnProperty('state') && req.state == "PENDING") || !req.hasOwnProperty('state'))) {
                 // process the cost update ONLY while still in PENDING state and the update is stateless or still PENDING
                 if (req.hasOwnProperty('cost')) {
-                    c.costIn -= r.cost;
+                    c.costIn -= r.cost; 
                     r.cost = +req.cost * timeUnit;
                     r.initCost = r.cost;
                     c.costIn += r.cost;
                  }
             } else {
                 r.band = [];
-
+ 
                 // deep copy current request state as the first band's element
                 r.band.push(d3.map(r));
-
+ 
                 // update current req info
                 r.ts = +frame.ts * timeUnit;
-
-
+ 
+ 
                 if (req.hasOwnProperty('cost')) { r.cost = +req.cost * timeUnit; }
                 if (req.hasOwnProperty('seqno')) { r.seqno = +req.seqno; }
                 if (req.hasOwnProperty('state')) { r.state = req.state; }
@@ -963,277 +963,277 @@ d3.schviz = function() {
                 if (r.state == "RUNNING") {
                     c.hasRunningRequest = true;
                 }
-            }
-        }
-    }
-
-    var endParseCbsReq = function(data, frame, cbs, req) {
-        var idx = +cbs.idx;
-        var c = data.cbs[idx];
-
-        var id = +req.id;
-        var r = data.req[id];
-
-        if (r.band !== null) {
-            // deep copy new request state as the second band's element
-            r.band.push(d3.map(r));
-            if (r.band[0].get('ts') < r.band[1].get('ts')) {
-                data.reqband.push(r.band);
-            }
-        }
-    }
-
-    var finalizeCbs = function(data, ts, c) {
-        var band = [];
-
-        // deep copy current request state as the first band's element
-        band.push(d3.map(c));
-
-        // update current req info
-        c.ts = ts * timeUnit;
-
-        // deep copy new request state as the second band's element
-        band.push(d3.map(c));
-        if (band[0].get('ts') < band[1].get('ts')) {
-            data.cbsband.push(band);
-        }
-    }
-
-    var finalizeCbsReq = function(data, ts, r) {
-        var band = [];
-
-        // deep copy current request state as the first band's element
-        band.push(d3.map(r));
-
-        // update current req info
-        r.ts = ts * timeUnit;
-
-        // deep copy new request state as the second band's element
-        band.push(d3.map(r));
-        if (band[0].get('ts') < band[1].get('ts')) {
-            data.reqband.push(band);
-        }
-    }
-
-    var finalize = function(data, ts) {
-        for (var idx in data.cbs) {
-            finalizeCbs(data, ts, data.cbs[idx]);
-        }
-        for (var id in data.req) {
-            finalizeCbsReq(data, ts, data.req[id]);
-        }
-    }
-
-    var parseFrame = function(data, frame) {
-        var i, j;
-        for (i = 0; i < frame.cbs.length; ++i) {
-            var cbs = frame.cbs[i];
-            beginParseCbs(data, frame, cbs);
-            if (cbs.hasOwnProperty('req')) {
-                for (j = 0; j < cbs.req.length; ++j) {
-                    var req = cbs.req[j];
-                    beginParseCbsReq(data, frame, cbs, req);
-                }
-                for (j = 0; j < cbs.req.length; ++j) {
-                    var req = cbs.req[j];
-                    endParseCbsReq(data, frame, cbs, req);
-                }
-            }
-            endParseCbs(data, frame, cbs);
-        }
-    }
-
-    var parseKeyframe = function(data, frame) {
-        // current state
-        data.cbs = {};
-        data.req = {};
-
-        // data for vizualization
-        data.cbsband = [];
-        data.reqband = [];
-
-        // regular frame parse
-        parseFrame(data, frame);
-    }
-
-    var parseHistory = function(hist) {
-        var i, data = {},
-            keyframeFound = false;
-        for (i = 0; i < hist.length; ++i) {
-            var frame = hist[i];
-            if (!keyframeFound) {
-                if (frame.keyframe) {
-                    keyframeFound = true;
-                    parseKeyframe(data, frame);
-                } else {
-                    // skip frames before keyframe
-                }
-            } else {
-                if (!frame.keyframe) {
-                    parseFrame(data, frame);
-                } else {
-                    // skip non-first keyframes
-                }
-            }
-        }
-        if (hist.length > 1) {
-            finalize(data, hist[hist.length-1].ts);
-        }
-
-        // Erase every cbs that has no request
-        data.cbsband = data.cbsband.filter(x => data.cbs[x[0].get('idx')].band !== null);
-        Object.keys(data.cbs).forEach(function(key) {
-            if (data.cbs[key].band === null) {
-                delete data.cbs[key];
-            }
-        });
-        console.log(data);
-        return data;
-    }
-
-// public:
-
-    schviz.draw = function(cbs) {
-        svg.select("g.x.axis").call(xAxis);
-        svg.select("g.y.axis").call(yAxis);
-        return schviz;
-    }
-
-    schviz.update = function(cbs) {
-
-        var svg = d3.select(".chart");
-        var schvizChartGroup = svg.select(".gantt-chart");
-
-        // update task data attached to rect elements
-        var rect = schvizChartGroup.selectAll("rect")
-            .data(cbs, cbsKeyFunction);
-
-        // attach new cbs state
-        rect.enter()
-            .insert("rect", ":first-child")
-            .attr("rx", 5)
-            .attr("ry", 5)
-            .attr("class", function(d) {
-                if (taskStatus[d.status] == null) {
-                    return "bar";
-                }
-                return taskStatus[d.status];
-            })
-          .transition()
-            .attr("y", 0)
-            .attr("transform", rectTransform)
-            .attr("height", function(d) {
-                return y.bandwidth();
-            })
-            .attr("width", function(d) {
-                return Math.max(1*xPixel, (x(d.endDate) - x(d.startDate)));
-            });
-
-        // rearrange current cbs states
-        rect.transition()
-            .attr("transform", rectTransform)
-            .attr("height", function(d) {
-                return y.bandwidth();
-            })
-            .attr("width", function(d) {
-                return Math.max(1*xPixel(), (x(d.endDate) - x(d.startDate)));
-            });
-
-        // remove deleted cbs states
-        rect.exit().remove();
-
-        // update axes
-        svg.select(".x").transition().call(xAxis);
-        svg.select(".y").transition().call(yAxis);
-
-        return schviz;
-    }
-
-    schviz.margin = function(value) {
-        if (!arguments.length)
-            return margin;
-        margin = value;
-        return schviz;
-    }
-
-    schviz.timeDomain = function(value) {
-        if (!arguments.length)
-            return [timeDomainStartMs, timeDomainEndMs];
-        timeDomainStartMs = value[0];
-        timeDomainEndMs = value[1];
-        return schviz;
-    }
-
-    schviz.width = function(value) {
-        if (!arguments.length)
-            return width;
-        width = +value;
-        return schviz;
-    }
-
-    schviz.height = function(value) {
-        if (!arguments.length)
-            return height;
-        height = +value;
-        return schviz;
-    }
-
-    schviz.selector = function(value) {
-        if (!arguments.length)
-            return selector;
-        selector = value;
-        return schviz;
-    }
-
-// constructor
-
-    var margin = {
-        top: 20,
-        right: 40,
-        bottom: 20,
-        left: 200,
-        footer: 100,
-    };
-    var height = document.body.clientHeight - margin.top - margin.bottom - 5;
-    var width = document.body.clientWidth - margin.right - margin.left - 5;
-
-    var selector = 'body';
-    var timeDomainStartMs = 0;
-    var timeDomainEndMs = 1000;
-    var timeUnit = 1e-6;
-    var costFmt = d3.format('.4s');
-    var timeFmt = d3.format(',.6r');
-    var cbsStateClass = {
-        "IDLE": "cbs-idle",
-        "ACTIVE": "cbs-active",
-        "RUNNING": "cbs-running",
-        "DEPLETED": "cbs-depleted",
-        "DEAD": "cbs-dead"
-    };
-
-    var x = null,
-        xZoomed = null,
-        y = null,
-        xAxis = null,
-        yAxis = null,
-        svg = null,
-        defs = null,
-        svgChartContainer = null,
-        svgChart = null,
-        zoomPanel = null,
-        zoomContainer1 = null,
-        zoomContainer2 = null,
-        fixedContainer = null,
-        zoom = null,
-        cbsSvg = null,
-        reqSvg = null,
-        cbsbands = null,
-        cbsstates = null,
-        tip = null,
-        ruler = null,
-        data = { "bands": d3.map(), "states": d3.map() },
-        transDuration = 250
-    ;
-
-    return schviz;
-}
+            } 
+        } 
+    } 
+ 
+    var endParseCbsReq = function(data, frame, cbs, req) { 
+        var idx = +cbs.idx; 
+        var c = data.cbs[idx]; 
+ 
+        var id = +req.id; 
+        var r = data.req[id]; 
+ 
+        if (r.band !== null) { 
+            // deep copy new request state as the second band's element 
+            r.band.push(d3.map(r)); 
+            if (r.band[0].get('ts') < r.band[1].get('ts')) { 
+                data.reqband.push(r.band); 
+            } 
+        } 
+    } 
+ 
+    var finalizeCbs = function(data, ts, c) { 
+        var band = []; 
+ 
+        // deep copy current request state as the first band's element 
+        band.push(d3.map(c)); 
+ 
+        // update current req info 
+        c.ts = ts * timeUnit; 
+ 
+        // deep copy new request state as the second band's element 
+        band.push(d3.map(c)); 
+        if (band[0].get('ts') < band[1].get('ts')) { 
+            data.cbsband.push(band); 
+        } 
+    } 
+ 
+    var finalizeCbsReq = function(data, ts, r) { 
+        var band = []; 
+ 
+        // deep copy current request state as the first band's element 
+        band.push(d3.map(r)); 
+ 
+        // update current req info 
+        r.ts = ts * timeUnit; 
+ 
+        // deep copy new request state as the second band's element 
+        band.push(d3.map(r)); 
+        if (band[0].get('ts') < band[1].get('ts')) { 
+            data.reqband.push(band); 
+        } 
+    } 
+ 
+    var finalize = function(data, ts) { 
+        for (var idx in data.cbs) { 
+            finalizeCbs(data, ts, data.cbs[idx]); 
+        } 
+        for (var id in data.req) { 
+            finalizeCbsReq(data, ts, data.req[id]); 
+        } 
+    } 
+ 
+    var parseFrame = function(data, frame) { 
+        var i, j; 
+        for (i = 0; i < frame.cbs.length; ++i) { 
+            var cbs = frame.cbs[i]; 
+            beginParseCbs(data, frame, cbs); 
+            if (cbs.hasOwnProperty('req')) { 
+                for (j = 0; j < cbs.req.length; ++j) { 
+                    var req = cbs.req[j]; 
+                    beginParseCbsReq(data, frame, cbs, req); 
+                } 
+                for (j = 0; j < cbs.req.length; ++j) { 
+                    var req = cbs.req[j]; 
+                    endParseCbsReq(data, frame, cbs, req); 
+                } 
+            } 
+            endParseCbs(data, frame, cbs); 
+        } 
+    } 
+ 
+    var parseKeyframe = function(data, frame) { 
+        // current state 
+        data.cbs = {}; 
+        data.req = {}; 
+ 
+        // data for vizualization 
+        data.cbsband = []; 
+        data.reqband = []; 
+ 
+        // regular frame parse 
+        parseFrame(data, frame); 
+    } 
+ 
+    var parseHistory = function(hist) { 
+        var i, data = {}, 
+            keyframeFound = false; 
+        for (i = 0; i < hist.length; ++i) { 
+            var frame = hist[i]; 
+            if (!keyframeFound) { 
+                if (frame.keyframe) { 
+                    keyframeFound = true; 
+                    parseKeyframe(data, frame); 
+                } else { 
+                    // skip frames before keyframe 
+                } 
+            } else { 
+                if (!frame.keyframe) { 
+                    parseFrame(data, frame); 
+                } else { 
+                    // skip non-first keyframes 
+                } 
+            } 
+        } 
+        if (hist.length > 1) { 
+            finalize(data, hist[hist.length-1].ts); 
+        } 
+ 
+        // Erase every cbs that has no request 
+        data.cbsband = data.cbsband.filter(x => data.cbs[x[0].get('idx')].band !== null); 
+        Object.keys(data.cbs).forEach(function(key) { 
+            if (data.cbs[key].band === null) { 
+                delete data.cbs[key]; 
+            } 
+        }); 
+        console.log(data); 
+        return data; 
+    } 
+ 
+// public: 
+ 
+    schviz.draw = function(cbs) { 
+        svg.select("g.x.axis").call(xAxis); 
+        svg.select("g.y.axis").call(yAxis); 
+        return schviz; 
+    } 
+ 
+    schviz.update = function(cbs) { 
+ 
+        var svg = d3.select(".chart"); 
+        var schvizChartGroup = svg.select(".gantt-chart"); 
+ 
+        // update task data attached to rect elements 
+        var rect = schvizChartGroup.selectAll("rect") 
+            .data(cbs, cbsKeyFunction); 
+ 
+        // attach new cbs state 
+        rect.enter() 
+            .insert("rect", ":first-child") 
+            .attr("rx", 5) 
+            .attr("ry", 5) 
+            .attr("class", function(d) { 
+                if (taskStatus[d.status] == null) { 
+                    return "bar"; 
+                } 
+                return taskStatus[d.status]; 
+            }) 
+          .transition() 
+            .attr("y", 0) 
+            .attr("transform", rectTransform) 
+            .attr("height", function(d) { 
+                return y.bandwidth(); 
+            }) 
+            .attr("width", function(d) { 
+                return Math.max(1*xPixel, (x(d.endDate) - x(d.startDate))); 
+            }); 
+ 
+        // rearrange current cbs states 
+        rect.transition() 
+            .attr("transform", rectTransform) 
+            .attr("height", function(d) { 
+                return y.bandwidth(); 
+            }) 
+            .attr("width", function(d) { 
+                return Math.max(1*xPixel(), (x(d.endDate) - x(d.startDate))); 
+            }); 
+ 
+        // remove deleted cbs states 
+        rect.exit().remove(); 
+ 
+        // update axes 
+        svg.select(".x").transition().call(xAxis); 
+        svg.select(".y").transition().call(yAxis); 
+ 
+        return schviz; 
+    } 
+ 
+    schviz.margin = function(value) { 
+        if (!arguments.length) 
+            return margin; 
+        margin = value; 
+        return schviz; 
+    } 
+ 
+    schviz.timeDomain = function(value) { 
+        if (!arguments.length) 
+            return [timeDomainStartMs, timeDomainEndMs]; 
+        timeDomainStartMs = value[0]; 
+        timeDomainEndMs = value[1]; 
+        return schviz; 
+    } 
+ 
+    schviz.width = function(value) { 
+        if (!arguments.length) 
+            return width; 
+        width = +value; 
+        return schviz; 
+    } 
+ 
+    schviz.height = function(value) { 
+        if (!arguments.length) 
+            return height; 
+        height = +value; 
+        return schviz; 
+    } 
+ 
+    schviz.selector = function(value) { 
+        if (!arguments.length) 
+            return selector; 
+        selector = value; 
+        return schviz; 
+    } 
+ 
+// constructor 
+ 
+    var margin = { 
+        top: 20, 
+        right: 40, 
+        bottom: 20, 
+        left: 200, 
+        footer: 100, 
+    }; 
+    var height = document.body.clientHeight - margin.top - margin.bottom - 5; 
+    var width = document.body.clientWidth - margin.right - margin.left - 5; 
+ 
+    var selector = 'body'; 
+    var timeDomainStartMs = 0; 
+    var timeDomainEndMs = 1000; 
+    var timeUnit = 1e-6; 
+    var costFmt = d3.format('.4s'); 
+    var timeFmt = d3.format(',.6r'); 
+    var cbsStateClass = { 
+        "IDLE": "cbs-idle", 
+        "ACTIVE": "cbs-active", 
+        "RUNNING": "cbs-running", 
+        "DEPLETED": "cbs-depleted", 
+        "DEAD": "cbs-dead" 
+    }; 
+ 
+    var x = null, 
+        xZoomed = null, 
+        y = null, 
+        xAxis = null, 
+        yAxis = null, 
+        svg = null, 
+        defs = null, 
+        svgChartContainer = null, 
+        svgChart = null, 
+        zoomPanel = null, 
+        zoomContainer1 = null, 
+        zoomContainer2 = null, 
+        fixedContainer = null, 
+        zoom = null, 
+        cbsSvg = null, 
+        reqSvg = null, 
+        cbsbands = null, 
+        cbsstates = null, 
+        tip = null, 
+        ruler = null, 
+        data = { "bands": d3.map(), "states": d3.map() }, 
+        transDuration = 250 
+    ; 
+ 
+    return schviz; 
+} 
diff --git a/ydb/library/schlab/mon/static/scharm.html b/ydb/library/schlab/mon/static/scharm.html
index 469c22adff..279f5b7be9 100644
--- a/ydb/library/schlab/mon/static/scharm.html
+++ b/ydb/library/schlab/mon/static/scharm.html
@@ -1,89 +1,89 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <title>SchArm</title>
-  <link type="text/css" href="css/bootstrap.min.css" rel="stylesheet" />
-  <link type="text/css" href="css/scharm.css" rel="stylesheet" />
-</head>
-<body>
-
-<div class="container">
-  <h1>SchArm</h1>
-  <h3>Request generators</h3>
-  <div class="row">
-    <div class="col-md-12">
-      <div id="cfg-table"></div>
-    </div>
-  </div>
-  <div class="row">
-    <div class="col-md-12">
-      <button class="btn btn-default btn-block" type="button" onclick="scharm.addRow()">Add Generator</button>
-    </div>
-  </div>
-  <div class="row-fluid">
-    <div class="form-group">
-      <div class="pull-left">
-        <div class="btn-group">
+<!DOCTYPE html> 
+<html> 
+<head> 
+  <title>SchArm</title> 
+  <link type="text/css" href="css/bootstrap.min.css" rel="stylesheet" /> 
+  <link type="text/css" href="css/scharm.css" rel="stylesheet" /> 
+</head> 
+<body> 
+ 
+<div class="container"> 
+  <h1>SchArm</h1> 
+  <h3>Request generators</h3> 
+  <div class="row"> 
+    <div class="col-md-12"> 
+      <div id="cfg-table"></div> 
+    </div> 
+  </div> 
+  <div class="row"> 
+    <div class="col-md-12"> 
+      <button class="btn btn-default btn-block" type="button" onclick="scharm.addRow()">Add Generator</button> 
+    </div> 
+  </div> 
+  <div class="row-fluid"> 
+    <div class="form-group"> 
+      <div class="pull-left"> 
+        <div class="btn-group"> 
           <button class="btn btn-primary" type="button" onclick="scharm.applyCfg()">Apply</button>
-        </div>
+        </div> 
         <div class="btn-group">
-          <button id="btnArm" class="btn btn-primary" type="button" onclick="scharm.sendCfg()">Arm</button>
+          <button id="btnArm" class="btn btn-primary" type="button" onclick="scharm.sendCfg()">Arm</button> 
         </div>
-      </div>
-      <div class="pull-right">
-        <button class="btn btn-primary" type="button" data-toggle="modal" data-target="#RawModal">Raw</button>
-      </div>
-    </div>
-  </div>
-  <br/><br/>
-  <h3>Schedule</h3>
-  <div class="row">
-      <div class="col-md-4">
-        <div class="form-group">
-          <label class="sr-only" for="throughput">Device throughput (in MBps)</label>
-          <div class="input-group">
-            <div class="input-group-addon">Throughput</div>
+      </div> 
+      <div class="pull-right"> 
+        <button class="btn btn-primary" type="button" data-toggle="modal" data-target="#RawModal">Raw</button> 
+      </div> 
+    </div> 
+  </div> 
+  <br/><br/> 
+  <h3>Schedule</h3> 
+  <div class="row"> 
+      <div class="col-md-4"> 
+        <div class="form-group"> 
+          <label class="sr-only" for="throughput">Device throughput (in MBps)</label> 
+          <div class="input-group"> 
+            <div class="input-group-addon">Throughput</div> 
             <input type="text" class="form-control" id="throughput" style="text-align:right;" value="100">
-            <div class="input-group-addon">MBps</div>
-          </div>
-        </div>
-      </div>
-  </div>
-  <div class="row">
-    <div class="col-md-12">
-      <div id="cfg-chart"></div>
-    </div>
-  </div>
-</div>
-
-<div class="modal fade" id="RawModal" tabindex="-1" role="dialog" aria-labelledby="gridSystemModalLabel">
-  <div class="modal-dialog" role="document">
-    <div class="modal-content">
-      <div class="modal-header">
-        <button type="button" class="close"
-                data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
-        <h4 class="modal-title" id="gridSystemModalLabel">Generators Raw Config</h4>
-      </div>
-      <div class="modal-body">
-        <div class="form-group">
-          <label for="message-text" class="control-label">Raw Config:</label>
-          <textarea class="form-control" id="cfg-text" rows="25"></textarea>
-        </div>
-      </div>
-      <div class="modal-footer">
-        <button type="button" class="btn btn-default" data-dismiss="modal">Dismiss</button>
-        <button type="button" class="btn btn-primary" id="cfg-save">Save</button>
-      </div>
-    </div>
-  </div>
-</div>
-
-</body>
-</html>
-
-<script type="text/javascript" src="js/jquery.min.js"></script>
-<script type="text/javascript" src="js/bootstrap.min.js"></script>
-<script type="text/javascript" src="js/d3.v4.min.js"></script>
-<script type="text/javascript" src="js/d3-tip-0.8.0-alpha.1.js"></script>
-<script type="text/javascript" src="js/scharm.js"></script>
-<script type="text/javascript" src="js/scharm-test0.js"></script>
+            <div class="input-group-addon">MBps</div> 
+          </div> 
+        </div> 
+      </div> 
+  </div> 
+  <div class="row"> 
+    <div class="col-md-12"> 
+      <div id="cfg-chart"></div> 
+    </div> 
+  </div> 
+</div> 
+ 
+<div class="modal fade" id="RawModal" tabindex="-1" role="dialog" aria-labelledby="gridSystemModalLabel"> 
+  <div class="modal-dialog" role="document"> 
+    <div class="modal-content"> 
+      <div class="modal-header"> 
+        <button type="button" class="close" 
+                data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button> 
+        <h4 class="modal-title" id="gridSystemModalLabel">Generators Raw Config</h4> 
+      </div> 
+      <div class="modal-body"> 
+        <div class="form-group"> 
+          <label for="message-text" class="control-label">Raw Config:</label> 
+          <textarea class="form-control" id="cfg-text" rows="25"></textarea> 
+        </div> 
+      </div> 
+      <div class="modal-footer"> 
+        <button type="button" class="btn btn-default" data-dismiss="modal">Dismiss</button> 
+        <button type="button" class="btn btn-primary" id="cfg-save">Save</button> 
+      </div> 
+    </div> 
+  </div> 
+</div> 
+ 
+</body> 
+</html> 
+ 
+<script type="text/javascript" src="js/jquery.min.js"></script> 
+<script type="text/javascript" src="js/bootstrap.min.js"></script> 
+<script type="text/javascript" src="js/d3.v4.min.js"></script> 
+<script type="text/javascript" src="js/d3-tip-0.8.0-alpha.1.js"></script> 
+<script type="text/javascript" src="js/scharm.js"></script> 
+<script type="text/javascript" src="js/scharm-test0.js"></script> 
diff --git a/ydb/library/schlab/mon/static/schviz-test0.json b/ydb/library/schlab/mon/static/schviz-test0.json
index b687a508b7..8a682edebb 100644
--- a/ydb/library/schlab/mon/static/schviz-test0.json
+++ b/ydb/library/schlab/mon/static/schviz-test0.json
@@ -1,219 +1,219 @@
-[{
-    "ts": 0,
-    "keyframe": true,
-    "epochtime": 1500390747,
-    "cbs": [{
-        "idx": 0,
-        "name": "vdisk0",
-        "max_budget": 250000000,
-        "period": 1000000000,
-        "cur_budget": 250000000,
-        "deadline": 1000000000,
-        "state": "RUNNING",
-        "req": [{
-            "id": 1,
-            "cost": 125000000,
-            "state": "RUNNING",
-            "seqno": 1
-        }]
-    },{
-        "idx": 1,
-        "name": "vdisk1",
-        "max_budget": 250000000,
-        "period": 1000000000,
-        "cur_budget": 250000000,
-        "deadline": 1000000000,
-        "state": "ACTIVE",
-        "req": [{
-            "id": 2,
-            "cost": 150000000,
-            "state": "PENDING",
-            "kind": "WRITE",
-            "seqno": 1
-        },{
-            "id": 3,
-            "cost": 200000000,
-            "state": "PENDING",
-            "kind": "WRITE",
-            "seqno": 2
-        },{
-            "id": 4,
-            "cost": 300000000,
-            "state": "PENDING",
-            "kind": "WRITE",
-            "seqno": 3
-        }]
-    },{
-        "idx": 2,
-        "name": "vdisk2",
-        "max_budget": 250000000,
-        "period": 1000000000,
-        "cur_budget": 250000000,
-        "deadline": 1000000000,
-        "state": "ACTIVE",
-        "req": [{
-            "id": 5,
-            "cost": 100000000,
-            "state": "PENDING",
-            "kind": "READ",
-            "seqno": 1
-        },{
-            "id": 6,
-            "cost": 100000000,
-            "state": "PENDING",
-            "kind": "READ",
-            "seqno": 2
-        },{
-            "id": 7,
-            "cost": 80000000,
-            "state": "PENDING",
-            "kind": "READ",
-            "seqno": 3
-        }]
-    },{
-        "idx": 3,
-        "name": "vdisk3",
-        "max_budget": 250000000,
-        "period": 1000000000,
-        "cur_budget": 250000000,
-        "deadline": 1000000000,
-        "state": "ACTIVE",
-        "req": [{
-            "id": 8,
-            "cost": 20000000,
-            "state": "PENDING",
-            "kind": "READ",
-            "seqno": 1
-        },{
-            "id": 9,
-            "cost": 20000000,
-            "state": "PENDING",
-            "kind": "READ",
-            "seqno": 2
-        },{
-            "id": 10,
-            "cost": 20000000,
-            "state": "PENDING",
-            "kind": "READ",
-            "seqno": 3
-        }]
-    }],
-    "hgrub": {
-        "uact": 1.0
-    }
-},{
-    "ts": 150000000,
-    "cbs": [{
-        "idx": 0,
-        "cur_budget": 0,
-        "state": "IDLE",
-        "req": [ { "id": 1, "state": "DONE" } ]
-    }]
-},{
-     "ts": 250000000,
-     "cbs": [{
-         "idx": 1,
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diff --git a/ydb/library/schlab/mon/static/schviz0.html b/ydb/library/schlab/mon/static/schviz0.html
index 656b57f57e..05e8741977 100644
--- a/ydb/library/schlab/mon/static/schviz0.html
+++ b/ydb/library/schlab/mon/static/schviz0.html
@@ -1,258 +1,258 @@
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-
-    var schviz = d3.schviz().height(600).width(800);
-
-    schviz.timeDomain([0, 1000]);
-    schviz(hist);
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+<!DOCTYPE html> 
+<html> 
+<head> 
+    <title>SchViz</title> 
+    <link type="text/css" href="css/schviz.css" rel="stylesheet" /> 
+</head> 
+<body> 
+</body> 
+</html> 
+ 
+<script type="text/javascript" src="js/d3.v4.min.js"></script> 
+<script type="text/javascript" src="js/d3-tip-0.8.0-alpha.1.js"></script> 
+<script type="text/javascript" src="js/schviz.js"></script> 
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+            "idx": 2, 
+            "cur_budget": 50000000, 
+            "req": [ { "id": 6, "state": "DONE" }, { "id": 7, "state": "RUNNING"} ] 
+        }] 
+    },{ 
+        "ts": 750000000, 
+        "cbs": [{ 
+            "idx": 2, 
+            "cur_budget": 0, 
+            "state": "DEPLETED", 
+            "req": [ { "id": 7, "cost": 60000000, "state": "PENDING" } ] 
+        },{ 
+            "idx": 3, 
+            "state": "RUNNING", 
+            "req": [ { "id": 8, "state": "RUNNING" } ] 
+        }] 
+    },{ 
+        "ts": 770000000, 
+        "cbs": [{ 
+            "idx": 3, 
+            "cur_budget": 230000000, 
+            "req": [ { "id": 8, "state": "DONE" }, { "id": 9, "state": "RUNNING"} ] 
+        }] 
+    },{ 
+        "ts": 790000000, 
+        "cbs": [{ 
+            "idx": 3, 
+            "cur_budget": 210000000, 
+            "req": [ { "id": 9, "state": "DONE" }, { "id": 10, "state": "RUNNING"} ] 
+        }] 
+    },{ 
+        "ts": 810000000, 
+        "cbs": [{ 
+            "idx": 1, 
+            "req": [ { "id": 4, "state": "RUNNING" } ] 
+        },{ 
+            "idx": 3, 
+            "cur_budget": 190000000, 
+            "req": [ { "id": 10, "state": "DONE" } ] 
+        }] 
+    },{ 
+        "ts": 860000000, 
+        "cbs": [{ 
+            "idx": 1, 
+            "state": "IDLE", 
+            "req": [ { "id": 4, "state": "DONE" } ] 
+        },{ 
+            "idx": 2, 
+            "req": [ { "id": 7, "state": "RUNNING" } ] 
+        },{ 
+            "idx": 3, 
+            "cur_budget": 140000000 
+        }] 
+    },{ 
+        "ts": 910000000, 
+        "cbs": [{ 
+            "idx": 2, 
+            "state": "IDLE", 
+            "req": [ { "id": 7, "state": "DONE" } ] 
+        },{ 
+            "idx": 3, 
+            "cur_budget": 90000000, 
+            "state": "IDLE" 
+        }] 
+    }]; 
+ 
+    var linesCount = 15; 
+    for (var i = 4; i < linesCount; i++) { 
+        hist[0].cbs.push({ 
+            "idx": i, 
+            "name": "vdisk" + i, 
+            "max_budget": 250000000, 
+            "period": 1000000000, 
+            "cur_budget": 250000000, 
+            "deadline": Math.random()*1000000000, 
+            "state": "ACTIVE", 
+            "req": [{ 
+                "id": 1, 
+                "cost": 125000000, 
+                "state": "RUNNING", 
+                "seqno": 1 
+            }] 
+        }); 
+    } 
+ 
+    var schviz = d3.schviz().height(600).width(800); 
+ 
+    schviz.timeDomain([0, 1000]); 
+    schviz(hist); 
+</script> 
diff --git a/ydb/library/schlab/mon/static/schviz1.html b/ydb/library/schlab/mon/static/schviz1.html
index 3d7d6c8d96..766395700c 100644
--- a/ydb/library/schlab/mon/static/schviz1.html
+++ b/ydb/library/schlab/mon/static/schviz1.html
@@ -1,21 +1,21 @@
-<!DOCTYPE html>
-<html>
-<head>
-    <title>SchViz</title>
-    <link type="text/css" href="css/schviz.css" rel="stylesheet" />
-</head>
-<body>
-</body>
-</html>
-
-<script type="text/javascript" src="js/d3.v4.min.js"></script>
-<script type="text/javascript" src="js/d3-tip-0.8.0-alpha.1.js"></script>
-<script type="text/javascript" src="js/schviz.js"></script>
-<script type="text/javascript">
-    var dataUrl = "http://kikimr0031.search.yandex.net:8765/actors/pdisks/pdisk000000001?mode=getschedule";
-    d3.json(dataUrl, function(data) {
-        var schviz = d3.schviz();
-        schviz.timeDomain([0, 1000]);
-        schviz(data);
-    });
-</script>
+<!DOCTYPE html> 
+<html> 
+<head> 
+    <title>SchViz</title> 
+    <link type="text/css" href="css/schviz.css" rel="stylesheet" /> 
+</head> 
+<body> 
+</body> 
+</html> 
+ 
+<script type="text/javascript" src="js/d3.v4.min.js"></script> 
+<script type="text/javascript" src="js/d3-tip-0.8.0-alpha.1.js"></script> 
+<script type="text/javascript" src="js/schviz.js"></script> 
+<script type="text/javascript"> 
+    var dataUrl = "http://kikimr0031.search.yandex.net:8765/actors/pdisks/pdisk000000001?mode=getschedule"; 
+    d3.json(dataUrl, function(data) { 
+        var schviz = d3.schviz(); 
+        schviz.timeDomain([0, 1000]); 
+        schviz(data); 
+    }); 
+</script> 
diff --git a/ydb/library/schlab/mon/test/test.cpp b/ydb/library/schlab/mon/test/test.cpp
index 64bf719d9a..9133da1f28 100644
--- a/ydb/library/schlab/mon/test/test.cpp
+++ b/ydb/library/schlab/mon/test/test.cpp
@@ -3,63 +3,63 @@
 #include <library/cpp/monlib/service/monservice.h>
 #include <library/cpp/monlib/service/pages/resource_mon_page.h>
 #include <library/cpp/resource/resource.h>
-
-namespace {
-
-// Config
-int g_MonPort              = 8080;
-
-}
-
-#define SCHLAB_STATIC_FILE(mon, file, type) \
-    mon->Register(new TResourceMonPage(file, file, NMonitoring::TResourceMonPage::type)); \
-    /**/
-
-int main(int argc, char** argv)
-{
-    using namespace NMonitoring;
-
-    try {
-#if defined(_unix_) || defined(_darwin_)
-        signal(SIGPIPE, SIG_IGN);
-#endif
-
-#ifdef _win32_
-        WSADATA dummy;
-        WSAStartup(MAKEWORD(2,2), &dummy);
-#endif
-
-        // Configure
-        using TMonSrvc = NMonitoring::TMonService2;
-        THolder<TMonSrvc> MonSrvc;
-        NLastGetopt::TOpts opts = NLastGetopt::TOpts::Default();
-        opts.AddLongOption(0, "mon-port", "port of monitoring service")
-                .RequiredArgument("port")
-                .StoreResult(&g_MonPort, g_MonPort);
-        NLastGetopt::TOptsParseResult res(&opts, argc, argv);
-
-        // Init monservice
+ 
+namespace { 
+ 
+// Config 
+int g_MonPort              = 8080; 
+ 
+} 
+ 
+#define SCHLAB_STATIC_FILE(mon, file, type) \ 
+    mon->Register(new TResourceMonPage(file, file, NMonitoring::TResourceMonPage::type)); \ 
+    /**/ 
+ 
+int main(int argc, char** argv) 
+{ 
+    using namespace NMonitoring; 
+ 
+    try { 
+#if defined(_unix_) || defined(_darwin_) 
+        signal(SIGPIPE, SIG_IGN); 
+#endif 
+ 
+#ifdef _win32_ 
+        WSADATA dummy; 
+        WSAStartup(MAKEWORD(2,2), &dummy); 
+#endif 
+ 
+        // Configure 
+        using TMonSrvc = NMonitoring::TMonService2; 
+        THolder<TMonSrvc> MonSrvc; 
+        NLastGetopt::TOpts opts = NLastGetopt::TOpts::Default(); 
+        opts.AddLongOption(0, "mon-port", "port of monitoring service") 
+                .RequiredArgument("port") 
+                .StoreResult(&g_MonPort, g_MonPort); 
+        NLastGetopt::TOptsParseResult res(&opts, argc, argv); 
+ 
+        // Init monservice 
         TString schArmJson;
 
-        MonSrvc.Reset(new TMonSrvc(g_MonPort));
-        SCHLAB_STATIC_FILE(MonSrvc.Get(), "schlab/schviz-test0.json", JSON);
-        NKikimr::CreateSchLabCommonPages(MonSrvc.Get());
-        NKikimr::CreateSchArmPages(MonSrvc.Get(), "schlab/scharm", "/schlab/schviz");
+        MonSrvc.Reset(new TMonSrvc(g_MonPort)); 
+        SCHLAB_STATIC_FILE(MonSrvc.Get(), "schlab/schviz-test0.json", JSON); 
+        NKikimr::CreateSchLabCommonPages(MonSrvc.Get()); 
+        NKikimr::CreateSchArmPages(MonSrvc.Get(), "schlab/scharm", "/schlab/schviz"); 
         NKikimr::CreateSchVizPages(MonSrvc.Get(), "schlab/schviz", "/schlab/scharm?mode=getschedule");
-
-        // Start monservice
-        MonSrvc->Start();
-
-        // Infinite loop
-        while (true) {
-            Sleep(TDuration::Seconds(1));
-        }
-
-        // Finish
-        Cout << "bye" << Endl;
-        return 0;
-    } catch (...) {
-        Cerr << "failure: " << CurrentExceptionMessage() << Endl;
-        return 1;
-    }
-}
+ 
+        // Start monservice 
+        MonSrvc->Start(); 
+ 
+        // Infinite loop 
+        while (true) { 
+            Sleep(TDuration::Seconds(1)); 
+        } 
+ 
+        // Finish 
+        Cout << "bye" << Endl; 
+        return 0; 
+    } catch (...) { 
+        Cerr << "failure: " << CurrentExceptionMessage() << Endl; 
+        return 1; 
+    } 
+} 
diff --git a/ydb/library/schlab/mon/test/ya.make b/ydb/library/schlab/mon/test/ya.make
index bc282bfcf4..1dde888361 100644
--- a/ydb/library/schlab/mon/test/ya.make
+++ b/ydb/library/schlab/mon/test/ya.make
@@ -1,22 +1,22 @@
-PROGRAM()
-
+PROGRAM() 
+ 
 OWNER(
     serxa
     g:kikimr
 )
-
-RESOURCE(
-    ../static/schviz-test0.json schlab/schviz-test0.json
-)
-
-SRCS(
-    test.cpp
-)
-
-PEERDIR(
+ 
+RESOURCE( 
+    ../static/schviz-test0.json schlab/schviz-test0.json 
+) 
+ 
+SRCS( 
+    test.cpp 
+) 
+ 
+PEERDIR( 
     library/cpp/getopt
     library/cpp/monlib/dynamic_counters
     ydb/library/schlab/mon
-)
-
-END()
+) 
+ 
+END() 
diff --git a/ydb/library/schlab/mon/ya.make b/ydb/library/schlab/mon/ya.make
index ca05b8cdc3..ad89be6c5e 100644
--- a/ydb/library/schlab/mon/ya.make
+++ b/ydb/library/schlab/mon/ya.make
@@ -1,40 +1,40 @@
-LIBRARY()
-
+LIBRARY() 
+ 
 OWNER(
     serxa
     g:kikimr
 )
-
-RESOURCE(
-    static/css/bootstrap.min.css schlab/css/bootstrap.min.css
-    static/css/scharm.css schlab/css/scharm.css
-    static/css/schviz.css schlab/css/schviz.css
-    static/js/jquery.min.js schlab/js/jquery.min.js
-    static/js/bootstrap.min.js schlab/js/bootstrap.min.js
-    static/js/d3-tip-0.8.0-alpha.1.js schlab/js/d3-tip-0.8.0-alpha.1.js
-    static/js/d3.v4.min.js schlab/js/d3.v4.min.js
-    static/js/scharm.js schlab/js/scharm.js
-    static/js/schviz.js schlab/js/schviz.js
+ 
+RESOURCE( 
+    static/css/bootstrap.min.css schlab/css/bootstrap.min.css 
+    static/css/scharm.css schlab/css/scharm.css 
+    static/css/schviz.css schlab/css/schviz.css 
+    static/js/jquery.min.js schlab/js/jquery.min.js 
+    static/js/bootstrap.min.js schlab/js/bootstrap.min.js 
+    static/js/d3-tip-0.8.0-alpha.1.js schlab/js/d3-tip-0.8.0-alpha.1.js 
+    static/js/d3.v4.min.js schlab/js/d3.v4.min.js 
+    static/js/scharm.js schlab/js/scharm.js 
+    static/js/schviz.js schlab/js/schviz.js 
     static/js/scharm-test0.js schlab/js/scharm-test0.js
-    static/scharm.html schlab/scharm.html
-)
-
-SRCS(
-    mon.cpp
-)
-
-PEERDIR(
+    static/scharm.html schlab/scharm.html 
+) 
+ 
+SRCS( 
+    mon.cpp 
+) 
+ 
+PEERDIR( 
     library/cpp/html/pcdata
     library/cpp/monlib/dynamic_counters
     library/cpp/resource
     ydb/library/schlab/schemu
-)
-
-END()
-
-RECURSE(
-    test
+) 
+ 
+END() 
+ 
+RECURSE( 
+    test 
     static
     static/css
     static/js
-)
+) 
diff --git a/ydb/library/schlab/probes/ya.make b/ydb/library/schlab/probes/ya.make
index c3b87eb5df..38c2eaf60c 100644
--- a/ydb/library/schlab/probes/ya.make
+++ b/ydb/library/schlab/probes/ya.make
@@ -1,17 +1,17 @@
-LIBRARY()
-
+LIBRARY() 
+ 
 OWNER(
     cthulhu
     g:kikimr
 )
-
-PEERDIR(
+ 
+PEERDIR( 
     library/cpp/lwtrace
-)
-
-SRCS(
-    probes.cpp
-    probes.h
-)
-
-END()
+) 
+ 
+SRCS( 
+    probes.cpp 
+    probes.h 
+) 
+ 
+END() 
diff --git a/ydb/library/schlab/schine/bin_log.h b/ydb/library/schlab/schine/bin_log.h
index 8abe61ccd8..78d896bf13 100644
--- a/ydb/library/schlab/schine/bin_log.h
+++ b/ydb/library/schlab/schine/bin_log.h
@@ -75,5 +75,5 @@ public:
 };
 
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/cbs.cpp b/ydb/library/schlab/schine/cbs.cpp
index b0dcbae11f..71f646a7e3 100644
--- a/ydb/library/schlab/schine/cbs.cpp
+++ b/ydb/library/schlab/schine/cbs.cpp
@@ -82,5 +82,5 @@ void TCbs::DeleteJobs() {
     JobsSize = 0;
 }
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/cbs.h b/ydb/library/schlab/schine/cbs.h
index c71073200b..59adc7a9a3 100644
--- a/ydb/library/schlab/schine/cbs.h
+++ b/ydb/library/schlab/schine/cbs.h
@@ -51,5 +51,5 @@ protected:
     void DeleteJobs();
 };
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/cbs_bin.cpp b/ydb/library/schlab/schine/cbs_bin.cpp
index 37f5bafdb3..ed9d7b49d6 100644
--- a/ydb/library/schlab/schine/cbs_bin.cpp
+++ b/ydb/library/schlab/schine/cbs_bin.cpp
@@ -75,5 +75,5 @@ bool TCbsBin::AppendKeyframe(const TCbs &cur) {
     return false;
 }
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/cbs_bin.h b/ydb/library/schlab/schine/cbs_bin.h
index 176649dca0..0e20fb717f 100644
--- a/ydb/library/schlab/schine/cbs_bin.h
+++ b/ydb/library/schlab/schine/cbs_bin.h
@@ -61,5 +61,5 @@ struct TCbsBin {
     };
 };
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/cbs_state.cpp b/ydb/library/schlab/schine/cbs_state.cpp
index 32f4fbd16f..c0a6d8912b 100644
--- a/ydb/library/schlab/schine/cbs_state.cpp
+++ b/ydb/library/schlab/schine/cbs_state.cpp
@@ -20,5 +20,5 @@ const char* CbsStateName(ECbsState state) {
     }
 }
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/cbs_state.h b/ydb/library/schlab/schine/cbs_state.h
index 19b6288a88..8f126268a2 100644
--- a/ydb/library/schlab/schine/cbs_state.h
+++ b/ydb/library/schlab/schine/cbs_state.h
@@ -14,5 +14,5 @@ enum ECbsState {
 
 const char* CbsStateName(ECbsState state);
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/job.cpp b/ydb/library/schlab/schine/job.cpp
index 241bd5579e..c1ab6424f2 100644
--- a/ydb/library/schlab/schine/job.cpp
+++ b/ydb/library/schlab/schine/job.cpp
@@ -3,5 +3,5 @@
 namespace NKikimr {
 namespace NSchLab {
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/job.h b/ydb/library/schlab/schine/job.h
index 5f53be107a..586746e551 100644
--- a/ydb/library/schlab/schine/job.h
+++ b/ydb/library/schlab/schine/job.h
@@ -24,5 +24,5 @@ struct TJob : TSimpleRefCount<TJob> {
     bool IsNew = true;
 };
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/job_kind.cpp b/ydb/library/schlab/schine/job_kind.cpp
index b6285303e6..afbc7c0e19 100644
--- a/ydb/library/schlab/schine/job_kind.cpp
+++ b/ydb/library/schlab/schine/job_kind.cpp
@@ -14,5 +14,5 @@ const char* JobKindName(EJobKind kind) {
     }
 }
 
-}  // NSchLab
-}  // NKikimr
+}  // NSchLab 
+}  // NKikimr 
diff --git a/ydb/library/schlab/schine/job_kind.h b/ydb/library/schlab/schine/job_kind.h
index 6077f37468..b404e17cf9 100644
--- a/ydb/library/schlab/schine/job_kind.h
+++ b/ydb/library/schlab/schine/job_kind.h
@@ -12,5 +12,5 @@ enum EJobKind {
 
 const char* JobKindName(EJobKind kind);
 
-}  // NSchLab
-}  // NKikimr
+}  // NSchLab 
+}  // NKikimr 
diff --git a/ydb/library/schlab/schine/job_state.cpp b/ydb/library/schlab/schine/job_state.cpp
index 513a839d3f..f9b1d8b401 100644
--- a/ydb/library/schlab/schine/job_state.cpp
+++ b/ydb/library/schlab/schine/job_state.cpp
@@ -16,5 +16,5 @@ const char* JobStateName(EJobState state) {
     }
 }
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/job_state.h b/ydb/library/schlab/schine/job_state.h
index cbe8aac0ca..4397b1961e 100644
--- a/ydb/library/schlab/schine/job_state.h
+++ b/ydb/library/schlab/schine/job_state.h
@@ -12,5 +12,5 @@ enum EJobState {
 
 const char* JobStateName(EJobState state);
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/name_table.h b/ydb/library/schlab/schine/name_table.h
index 3653c0702d..3b35cc5374 100644
--- a/ydb/library/schlab/schine/name_table.h
+++ b/ydb/library/schlab/schine/name_table.h
@@ -33,5 +33,5 @@ public:
 };
 
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/scheduler.cpp b/ydb/library/schlab/schine/scheduler.cpp
index dfd012a41c..ec75b6868b 100644
--- a/ydb/library/schlab/schine/scheduler.cpp
+++ b/ydb/library/schlab/schine/scheduler.cpp
@@ -1,7 +1,7 @@
 #include "scheduler.h"
 
 #include <library/cpp/lwtrace/all.h>
-
+ 
 #include <library/cpp/lwtrace/mon/mon_lwtrace.h>
 #include <ydb/library/schlab/probes/probes.h>
 
@@ -555,5 +555,5 @@ bool TScheduler::IsEmpty() {
     return true;
 }
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/scheduler.h b/ydb/library/schlab/schine/scheduler.h
index 684b9110ed..cbd7ce5b50 100644
--- a/ydb/library/schlab/schine/scheduler.h
+++ b/ydb/library/schlab/schine/scheduler.h
@@ -82,5 +82,5 @@ protected:
     ui32 NewCbs();
 };
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/schlog.cpp b/ydb/library/schlab/schine/schlog.cpp
index 14b303603f..e7a75151fd 100644
--- a/ydb/library/schlab/schine/schlog.cpp
+++ b/ydb/library/schlab/schine/schlog.cpp
@@ -339,5 +339,5 @@ void TSchLog::Output(IOutputStream &out, const TNameTable &nameTable) {
     out << "]";
 }
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/schlog.h b/ydb/library/schlab/schine/schlog.h
index e127690ad0..1f4e40faa0 100644
--- a/ydb/library/schlab/schine/schlog.h
+++ b/ydb/library/schlab/schine/schlog.h
@@ -107,5 +107,5 @@ struct TSchLog {
     void Output(IOutputStream &out, const TNameTable &nameTable);
 };
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/schine/schlog_frame.h b/ydb/library/schlab/schine/schlog_frame.h
index cee85531eb..2fe5c14835 100644
--- a/ydb/library/schlab/schine/schlog_frame.h
+++ b/ydb/library/schlab/schine/schlog_frame.h
@@ -13,5 +13,5 @@ enum EFrameType {
   FrameTypeRemoveJob
 };
 
-} // NSchLab
-} // NKikimr
+} // NSchLab 
+} // NKikimr 
diff --git a/ydb/library/schlab/ya.make b/ydb/library/schlab/ya.make
index 2a3a11b5f8..f2910cfc4d 100644
--- a/ydb/library/schlab/ya.make
+++ b/ydb/library/schlab/ya.make
@@ -16,10 +16,10 @@ SRCS(
 )
 
 END()
-
-RECURSE(
-    mon
-    probes
+ 
+RECURSE( 
+    mon 
+    probes 
     protos
     schemu
     schine
@@ -28,4 +28,4 @@ RECURSE(
 
 RECURSE_FOR_TESTS(
     ut
-)
+) 
diff --git a/ydb/library/yql/utils/actor_log/ya.make b/ydb/library/yql/utils/actor_log/ya.make
index cae3dcc827..e1c665db7b 100644
--- a/ydb/library/yql/utils/actor_log/ya.make
+++ b/ydb/library/yql/utils/actor_log/ya.make
@@ -7,7 +7,7 @@ SRCS(
 )
 
 PEERDIR(
-    library/cpp/actors/core
+    library/cpp/actors/core 
     library/cpp/actors/protos
     ydb/core/protos
 )
diff --git a/ydb/public/api/protos/ydb_clickhouse_internal.proto b/ydb/public/api/protos/ydb_clickhouse_internal.proto
index 0f9e685ed3..17ecc9d1a1 100644
--- a/ydb/public/api/protos/ydb_clickhouse_internal.proto
+++ b/ydb/public/api/protos/ydb_clickhouse_internal.proto
@@ -23,11 +23,11 @@ message ScanRequest {
     uint64 max_bytes = 9;
 
     string snapshot_id = 10;
-}
+} 
 
 message ScanResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message ScanResult {
     repeated bytes blocks = 1;
@@ -35,18 +35,18 @@ message ScanResult {
     bool eos = 2; // no more rows
     bytes last_key = 3;
     bool last_key_inclusive = 4;
-}
+} 
 
 
 message GetShardLocationsRequest {
     Ydb.Operations.OperationParams operation_params = 1;
 
     repeated uint64 tablet_ids = 2;
-}
+} 
 
 message GetShardLocationsResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message TabletInfo {
     uint64 tablet_id = 1;
@@ -56,7 +56,7 @@ message TabletInfo {
 
 message GetShardLocationsResult {
     repeated TabletInfo tablets = 1;
-}
+} 
 
 message DescribeTableRequest {
     Ydb.Operations.OperationParams operation_params = 1;
diff --git a/ydb/public/api/protos/ydb_cms.proto b/ydb/public/api/protos/ydb_cms.proto
index 1a569c7081..2778ed08f0 100644
--- a/ydb/public/api/protos/ydb_cms.proto
+++ b/ydb/public/api/protos/ydb_cms.proto
@@ -133,12 +133,12 @@ message GetDatabaseStatusRequest {
     string path = 1;
     // Operation parameters
     Ydb.Operations.OperationParams operation_params = 2;
-}
+} 
 
 message GetDatabaseStatusResponse {
     // operation.result holds GetDatabaseStatusResult
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message GetDatabaseStatusResult {
     enum State {
@@ -171,7 +171,7 @@ message GetDatabaseStatusResult {
     SchemaOperationQuotas schema_operation_quotas = 9;
     // Current quotas for the database
     DatabaseQuotas database_quotas = 10;
-}
+} 
 
 // Change resources allocated for database.
 message AlterDatabaseRequest {
diff --git a/ydb/public/api/protos/ydb_common.proto b/ydb/public/api/protos/ydb_common.proto
index a63e202f82..e12686040c 100644
--- a/ydb/public/api/protos/ydb_common.proto
+++ b/ydb/public/api/protos/ydb_common.proto
@@ -11,7 +11,7 @@ message FeatureFlag {
         ENABLED = 1;
         DISABLED = 2;
     }
-}
+} 
 
 message CostInfo {
     // Total amount of request units (RU), consumed by the operation.
diff --git a/ydb/public/api/protos/ydb_coordination.proto b/ydb/public/api/protos/ydb_coordination.proto
index 378045e78e..57cbeaa8ff 100644
--- a/ydb/public/api/protos/ydb_coordination.proto
+++ b/ydb/public/api/protos/ydb_coordination.proto
@@ -460,7 +460,7 @@ message CreateNodeRequest {
 
 message CreateNodeResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message AlterNodeRequest {
     string path = 1;
@@ -470,7 +470,7 @@ message AlterNodeRequest {
 
 message AlterNodeResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message DropNodeRequest {
     string path = 1;
@@ -479,7 +479,7 @@ message DropNodeRequest {
 
 message DropNodeResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message DescribeNodeRequest {
     string path = 1;
diff --git a/ydb/public/api/protos/ydb_discovery.proto b/ydb/public/api/protos/ydb_discovery.proto
index 5577dafe36..db4ecd49d8 100644
--- a/ydb/public/api/protos/ydb_discovery.proto
+++ b/ydb/public/api/protos/ydb_discovery.proto
@@ -12,7 +12,7 @@ message ListEndpointsRequest {
     repeated string service = 2;
 
 // todo: feature flags
-}
+} 
 
 message EndpointInfo {
     // This is an address (usually fqdn) and port of this node's grpc endpoint
@@ -34,16 +34,16 @@ message EndpointInfo {
     // endpoint is using certificate chain valid for a balancer hostname, and
     // not this specific node hostname.
     string ssl_target_name_override = 10;
-}
+} 
 
 message ListEndpointsResult {
     repeated EndpointInfo endpoints = 1;
     string self_location = 2;
-}
+} 
 
 message ListEndpointsResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message WhoAmIRequest {
     // Include user groups in response
diff --git a/ydb/public/api/protos/ydb_experimental.proto b/ydb/public/api/protos/ydb_experimental.proto
index 94eed9671b..d204597bd6 100644
--- a/ydb/public/api/protos/ydb_experimental.proto
+++ b/ydb/public/api/protos/ydb_experimental.proto
@@ -23,13 +23,13 @@ message ExecuteStreamQueryRequest {
 
     ProfileMode profile_mode = 3;
     bool explain = 4;
-}
+} 
 
 message ExecuteStreamQueryResponse {
     StatusIds.StatusCode status = 1;
     repeated Ydb.Issue.IssueMessage issues = 2;
     ExecuteStreamQueryResult result = 3;
-}
+} 
 
 message StreamQueryProgress {
 }
@@ -41,4 +41,4 @@ message ExecuteStreamQueryResult {
         StreamQueryProgress progress = 3;
         string query_plan = 4;
     }
-}
+} 
diff --git a/ydb/public/api/protos/ydb_rate_limiter.proto b/ydb/public/api/protos/ydb_rate_limiter.proto
index c18430c32b..c192805580 100644
--- a/ydb/public/api/protos/ydb_rate_limiter.proto
+++ b/ydb/public/api/protos/ydb_rate_limiter.proto
@@ -32,17 +32,17 @@ message HierarchicalDrrSettings {
     // 0 is equivalent to not set.
     // Must be nonnegative.
     double max_burst_size_coefficient = 2;
-
-    // Prefetch in local bucket up to prefetch_coefficient*max_units_per_second units (full size).
-    // Default value is inherited from parent or 0.2 for root.
-    // Disables prefetching if any negative value is set
-    // (It is useful to avoid bursts in case of large number of local buckets).
-    double prefetch_coefficient = 3;
-
-    // Prefetching starts if there is less than prefetch_watermark fraction of full local bucket left.
-    // Default value is inherited from parent or 0.75 for root.
-    // Must be nonnegative and less than or equal to 1.
-    double prefetch_watermark = 4;
+ 
+    // Prefetch in local bucket up to prefetch_coefficient*max_units_per_second units (full size). 
+    // Default value is inherited from parent or 0.2 for root. 
+    // Disables prefetching if any negative value is set 
+    // (It is useful to avoid bursts in case of large number of local buckets). 
+    double prefetch_coefficient = 3; 
+ 
+    // Prefetching starts if there is less than prefetch_watermark fraction of full local bucket left. 
+    // Default value is inherited from parent or 0.75 for root. 
+    // Must be nonnegative and less than or equal to 1. 
+    double prefetch_watermark = 4; 
 }
 
 // Rate limiter resource description.
diff --git a/ydb/public/api/protos/ydb_s3_internal.proto b/ydb/public/api/protos/ydb_s3_internal.proto
index 0f12fe6302..ff3626bf7e 100644
--- a/ydb/public/api/protos/ydb_s3_internal.proto
+++ b/ydb/public/api/protos/ydb_s3_internal.proto
@@ -18,14 +18,14 @@ message S3ListingRequest {
     repeated string columns_to_return = 7;
 
     Ydb.Operations.OperationParams operation_params = 8;
-}
+} 
 
 message S3ListingResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message S3ListingResult {
     Ydb.ResultSet common_prefixes = 1;    // Every Contents row starts with key suffix with KeySuffixSize columns
     Ydb.ResultSet contents = 2;           // Every Contents row starts with key suffix with KeySuffixSize columns
     uint32 key_suffix_size = 3;           // Number of key columns starting from path and up to the end
-}
+} 
diff --git a/ydb/public/api/protos/ydb_scheme.proto b/ydb/public/api/protos/ydb_scheme.proto
index d66b765725..4f71e4c8a4 100644
--- a/ydb/public/api/protos/ydb_scheme.proto
+++ b/ydb/public/api/protos/ydb_scheme.proto
@@ -12,38 +12,38 @@ import "ydb/public/api/protos/ydb_operation.proto";
 message MakeDirectoryRequest {
     Ydb.Operations.OperationParams operation_params = 1;
     string path = 2;
-}
+} 
 
 message MakeDirectoryResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 // Remove directory
 message RemoveDirectoryRequest {
     Ydb.Operations.OperationParams operation_params = 1;
     string path = 2;
-}
+} 
 
 message RemoveDirectoryResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 // List directory
 message ListDirectoryRequest {
     Ydb.Operations.OperationParams operation_params = 1;
     string path = 2;
-}
+} 
 
 message ListDirectoryResponse {
     // Holds ListDirectoryResult in case of successful call
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message Permissions {
     // SID (Security ID) of user or group
     string subject = 1;
     repeated string permission_names = 2;
-}
+} 
 
 message Entry {
     enum Type {
@@ -57,7 +57,7 @@ message Entry {
         COORDINATION_NODE = 7;
         SEQUENCE = 15;
         REPLICATION = 16;
-    }
+    } 
     
     // Name of scheme entry (dir2 of /dir1/dir2)
     string name = 1;
@@ -72,27 +72,27 @@ message Entry {
     // - DATABASE.
     // Empty (zero) in other cases.
     uint64 size_bytes = 8;
-}
+} 
 
 message ListDirectoryResult {
     Entry self = 1;
     repeated Entry children = 2;
-}
+} 
 
 // Returns information about object with given path
 message DescribePathRequest {
     Ydb.Operations.OperationParams operation_params = 1;
     string path = 2;
-}
+} 
 
 message DescribePathResponse {
     // Holds DescribePathResult in case of DescribePathResult
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message DescribePathResult {
     Entry self = 1;
-}
+} 
 
 message PermissionsAction {
     oneof action {
@@ -105,7 +105,7 @@ message PermissionsAction {
         // New owner for object
         string change_owner = 4;
     }
-}
+} 
 
 // Modify permissions of given object
 message ModifyPermissionsRequest {
@@ -114,8 +114,8 @@ message ModifyPermissionsRequest {
     repeated PermissionsAction actions = 3;
     // Clear all permissions on the object for all subjects
     bool clear_permissions = 4;
-}
+} 
 
 message ModifyPermissionsResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
diff --git a/ydb/public/api/protos/ydb_scripting.proto b/ydb/public/api/protos/ydb_scripting.proto
index 4c1a295418..4a87d9e5af 100644
--- a/ydb/public/api/protos/ydb_scripting.proto
+++ b/ydb/public/api/protos/ydb_scripting.proto
@@ -19,16 +19,16 @@ message ExecuteYqlRequest {
     string script = 2;
     map<string, TypedValue> parameters = 3;
     Ydb.Table.QueryStatsCollection.Mode collect_stats = 4;
-}
+} 
 
 message ExecuteYqlResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message ExecuteYqlResult {
     repeated Ydb.ResultSet result_sets = 1;
     Ydb.TableStats.QueryStats query_stats = 2;
-}
+} 
 
 // Response for StreamExecuteYql is a stream of ExecuteYqlPartialResponse messages.
 // These responses can contain ExecuteYqlPartialResult messages with
diff --git a/ydb/public/api/protos/ydb_table.proto b/ydb/public/api/protos/ydb_table.proto
index c8063d9475..7a48ea8cce 100644
--- a/ydb/public/api/protos/ydb_table.proto
+++ b/ydb/public/api/protos/ydb_table.proto
@@ -20,32 +20,32 @@ option java_package = "com.yandex.ydb.table";
 // Create new session
 message CreateSessionRequest {
     Ydb.Operations.OperationParams operation_params = 1;
-}
+} 
 
 // Create new session
 message CreateSessionResponse {
     // Holds CreateSessionResult in case of CreateSessionResult
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message CreateSessionResult {
     // Session identifier
     string session_id = 1;
-}
+} 
 
 // Delete session with given id string
 message DeleteSessionRequest {
     // Session identifier
     string session_id = 1;
     Ydb.Operations.OperationParams operation_params = 2;
-}
+} 
 
 message DeleteSessionResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message GlobalIndex {
-}
+} 
 
 message GlobalAsyncIndex {
 }
@@ -63,7 +63,7 @@ message TableIndex {
     }
     // list of columns content to be copied in to index table
     repeated string data_columns = 5;
-}
+} 
 
 // Represent secondary index with index state
 message TableIndexDescription {
@@ -119,7 +119,7 @@ message IndexBuildMetadata {
 
 message StoragePool {
     string media = 1;
-}
+} 
 
 message StoragePolicy {
     string preset_name = 1;
@@ -129,7 +129,7 @@ message StoragePolicy {
     StoragePool external = 5;
     Ydb.FeatureFlag.Status keep_in_memory = 6;
     repeated ColumnFamilyPolicy column_families = 7;
-}
+} 
 
 message ColumnFamilyPolicy {
     enum Compression {
@@ -156,7 +156,7 @@ message ColumnFamilyPolicy {
 
 message CompactionPolicy {
     string preset_name = 1;
-}
+} 
 
 message ExplicitPartitions {
     // Specify key values used to split table into partitions.
@@ -165,7 +165,7 @@ message ExplicitPartitions {
     // Total number of created partitions is number of specified
     // keys + 1.
     repeated TypedValue split_points = 1;
-}
+} 
 
 message PartitionStats {
     // Approximate number of rows in shard
@@ -207,11 +207,11 @@ message PartitioningPolicy {
         // created partitions.
         ExplicitPartitions explicit_partitions = 4;
     }
-}
+} 
 
 message ExecutionPolicy {
     string preset_name = 1;
-}
+} 
 
 message ReplicationPolicy {
     string preset_name = 1;
@@ -225,11 +225,11 @@ message ReplicationPolicy {
     // If this feature in enabled then read-only replicas can be promoted
     // to leader.
     Ydb.FeatureFlag.Status allow_promotion = 4;
-}
+} 
 
 message CachingPolicy {
     string preset_name = 1;
-}
+} 
 
 message TableProfile {
     string preset_name = 1;
@@ -239,7 +239,7 @@ message TableProfile {
     ExecutionPolicy execution_policy = 5;
     ReplicationPolicy replication_policy = 6;
     CachingPolicy caching_policy = 7;
-}
+} 
 
 message ColumnMeta {
     // Name of column
@@ -248,7 +248,7 @@ message ColumnMeta {
     Type type = 2;
     // Column family name of the column
     string family = 3;
-}
+} 
 
 message DateTypeColumnModeSettings {
     // The row will be considered as expired at the moment of time, when the value
@@ -431,11 +431,11 @@ message CreateTableRequest {
     Ydb.FeatureFlag.Status key_bloom_filter = 16;
     // Read replicas settings for table
     ReadReplicasSettings read_replicas_settings = 17;
-}
+} 
 
 message CreateTableResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 // Drop table with given path
 message DropTableRequest {
@@ -445,11 +445,11 @@ message DropTableRequest {
     string path = 2;
     reserved 3;
     Ydb.Operations.OperationParams operation_params = 4;
-}
+} 
 
 message DropTableResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 // Alter table with given path
 message AlterTableRequest {
@@ -490,11 +490,11 @@ message AlterTableRequest {
     Ydb.FeatureFlag.Status set_key_bloom_filter = 17;
     // Set read replicas settings for table
     ReadReplicasSettings set_read_replicas_settings = 18;
-}
+} 
 
 message AlterTableResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 // Copy table with given path
 message CopyTableRequest {
@@ -505,11 +505,11 @@ message CopyTableRequest {
     // Copy to path
     string destination_path = 3;
     Ydb.Operations.OperationParams operation_params = 4;
-}
+} 
 
 message CopyTableResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message CopyTableItem {
     // Copy from path
@@ -518,7 +518,7 @@ message CopyTableItem {
     string destination_path = 2;
     // Copy options
     bool omit_indexes = 3;
-}
+} 
 
 // Creates consistent copy of given tables.
 message CopyTablesRequest {
@@ -527,11 +527,11 @@ message CopyTablesRequest {
     string session_id = 2;
     // Source and destination paths which describe copies
     repeated CopyTableItem tables = 3;
-}
+} 
 
 message CopyTablesResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message RenameTableItem {
     // Full path
@@ -568,12 +568,12 @@ message DescribeTableRequest {
     bool include_table_stats = 6;
     // Includes partition statistics (required include_table_statistics)
     bool include_partition_stats = 7;
-}
+} 
 
 message DescribeTableResponse {
     // Holds DescribeTableResult in case of successful call
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message DescribeTableResult {
     // Description of scheme object
@@ -604,7 +604,7 @@ message DescribeTableResult {
     Ydb.FeatureFlag.Status key_bloom_filter = 13;
     // Read replicas settings for table
     ReadReplicasSettings read_replicas_settings = 14;
-}
+} 
 
 message Query {
     // Text of query or id prepared query
@@ -617,11 +617,11 @@ message Query {
 }
 
 message SerializableModeSettings {
-}
+} 
 
 message OnlineModeSettings {
     bool allow_inconsistent_reads = 1;
-}
+} 
 
 message StaleModeSettings {
 }
@@ -645,7 +645,7 @@ message TransactionControl {
 
 message QueryCachePolicy {
     bool keep_in_cache = 1;
-}
+} 
 
 // Collect and return query execution stats
 message QueryStatsCollection {
@@ -667,11 +667,11 @@ message ExecuteDataQueryRequest {
     QueryCachePolicy query_cache_policy = 5;
     Ydb.Operations.OperationParams operation_params = 6;
     QueryStatsCollection.Mode collect_stats = 7;
-}
+} 
 
 message ExecuteDataQueryResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message ExecuteSchemeQueryRequest {
     // Session identifier
@@ -679,11 +679,11 @@ message ExecuteSchemeQueryRequest {
     // SQL text
     string yql_text = 2;
     Ydb.Operations.OperationParams operation_params = 3;
-}
+} 
 
 message ExecuteSchemeQueryResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 // Holds transaction id
 message TransactionMeta {
@@ -709,7 +709,7 @@ message ExecuteQueryResult {
     QueryMeta query_meta = 3;
     // Query execution statistics
     Ydb.TableStats.QueryStats query_stats = 4;
-}
+} 
 
 // Explain data query
 message ExplainDataQueryRequest {
@@ -718,17 +718,17 @@ message ExplainDataQueryRequest {
     // SQL text to explain
     string yql_text = 2;
     Ydb.Operations.OperationParams operation_params = 3;
-}
+} 
 
 message ExplainDataQueryResponse {
     // Holds ExplainQueryResult in case of successful call
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message ExplainQueryResult {
     string query_ast = 1;
     string query_plan = 2;
-}
+} 
 
 // Prepare given program to execute
 message PrepareDataQueryRequest {
@@ -737,30 +737,30 @@ message PrepareDataQueryRequest {
     // SQL text
     string yql_text = 2;
     Ydb.Operations.OperationParams operation_params = 3;
-}
+} 
 
 message PrepareDataQueryResponse {
     // Holds PrepareQueryResult in case of successful call
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message PrepareQueryResult {
     // Query id, used to perform ExecuteDataQuery
     string query_id = 1;
     // Parameters type, used to fill in parameter values
     map<string, Type> parameters_types = 2;
-}
+} 
 
 // Keep session alive
 message KeepAliveRequest {
     // Session identifier
     string session_id = 1;
     Ydb.Operations.OperationParams operation_params = 2;
-}
+} 
 
 message KeepAliveResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message KeepAliveResult {
     enum SessionStatus {
@@ -770,7 +770,7 @@ message KeepAliveResult {
     }
 
     SessionStatus session_status = 1;
-}
+} 
 
 // Begin transaction on given session with given settings
 message BeginTransactionRequest {
@@ -778,16 +778,16 @@ message BeginTransactionRequest {
     string session_id = 1;
     TransactionSettings tx_settings = 2;
     Ydb.Operations.OperationParams operation_params = 3;
-}
+} 
 
 message BeginTransactionResponse {
     // Holds BeginTransactionResult in case of successful call
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message BeginTransactionResult {
     TransactionMeta tx_meta = 1;
-}
+} 
 
 // Commit transaction with given session and tx id
 message CommitTransactionRequest {
@@ -797,11 +797,11 @@ message CommitTransactionRequest {
     string tx_id = 2;
     Ydb.Operations.OperationParams operation_params = 3;
     QueryStatsCollection.Mode collect_stats = 4;
-}
+} 
 
 message CommitTransactionResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message CommitTransactionResult {
     Ydb.TableStats.QueryStats query_stats = 1;
@@ -814,11 +814,11 @@ message RollbackTransactionRequest {
     // Transaction identifier
     string tx_id = 2;
     Ydb.Operations.OperationParams operation_params = 3;
-}
+} 
 
 message RollbackTransactionResponse {
     Ydb.Operations.Operation operation = 1;
-}
+} 
 
 message StoragePolicyDescription {
     string name = 1;
@@ -904,7 +904,7 @@ message KeyRange {
         // Specify if we want to include given key
         TypedValue less_or_equal = 4;
     }
-}
+} 
 
 // Request to read table (without SQL)
 message ReadTableRequest {
@@ -922,7 +922,7 @@ message ReadTableRequest {
     uint64 row_limit = 6;
     // Use a server-side snapshot
     Ydb.FeatureFlag.Status use_snapshot = 7;
-}
+} 
 
 // ReadTable doesn't use Operation, returns result directly
 message ReadTableResponse {
@@ -932,13 +932,13 @@ message ReadTableResponse {
     repeated Ydb.Issue.IssueMessage issues = 2;
     // Read table result
     ReadTableResult result = 3;
-}
+} 
 
 // Result of read table request
 message ReadTableResult {
     // Result set (same as result of sql request)
     Ydb.ResultSet result_set = 1;
-}
+} 
 
 message BulkUpsertRequest {
     string table = 1;
diff --git a/ydb/public/api/protos/ydb_value.proto b/ydb/public/api/protos/ydb_value.proto
index d885d73f8e..149014eeaa 100644
--- a/ydb/public/api/protos/ydb_value.proto
+++ b/ydb/public/api/protos/ydb_value.proto
@@ -148,14 +148,14 @@ message Value {
 message TypedValue {
     Type type = 1;
     Value value = 2;
-}
+} 
 
 message Column {
     // Name of column
     string name = 1;
     // Type of column
     Type type = 2;
-}
+} 
 
 // Represents table-like structure with ordered set of rows and columns
 message ResultSet {
@@ -165,4 +165,4 @@ message ResultSet {
     repeated Value rows = 2;
     // Flag indicates the result was truncated
     bool truncated = 3;
-}
+} 
diff --git a/ydb/public/sdk/cpp/client/ydb_rate_limiter/rate_limiter.cpp b/ydb/public/sdk/cpp/client/ydb_rate_limiter/rate_limiter.cpp
index bea557812c..61cdeb27bc 100644
--- a/ydb/public/sdk/cpp/client/ydb_rate_limiter/rate_limiter.cpp
+++ b/ydb/public/sdk/cpp/client/ydb_rate_limiter/rate_limiter.cpp
@@ -30,14 +30,14 @@ TDescribeResourceResult::THierarchicalDrrProps::THierarchicalDrrProps(const Ydb:
     if (settings.max_burst_size_coefficient()) {
         MaxBurstSizeCoefficient_ = settings.max_burst_size_coefficient();
     }
-
-    if (settings.prefetch_coefficient()) {
-        PrefetchCoefficient_ = settings.prefetch_coefficient();
-    }
-
-    if (settings.prefetch_watermark()) {
-        PrefetchWatermark_ = settings.prefetch_watermark();
-    }
+ 
+    if (settings.prefetch_coefficient()) { 
+        PrefetchCoefficient_ = settings.prefetch_coefficient(); 
+    } 
+ 
+    if (settings.prefetch_watermark()) { 
+        PrefetchWatermark_ = settings.prefetch_watermark(); 
+    } 
 }
 
 class TRateLimiterClient::TImpl : public TClientImplCommon<TRateLimiterClient::TImpl> {
@@ -62,12 +62,12 @@ public:
         if (settings.MaxBurstSizeCoefficient_) {
             hdrr.set_max_burst_size_coefficient(*settings.MaxBurstSizeCoefficient_);
         }
-        if (settings.PrefetchCoefficient_) {
-            hdrr.set_prefetch_coefficient(*settings.PrefetchCoefficient_);
-        }
-        if (settings.PrefetchWatermark_) {
-            hdrr.set_prefetch_watermark(*settings.PrefetchWatermark_);
-        }
+        if (settings.PrefetchCoefficient_) { 
+            hdrr.set_prefetch_coefficient(*settings.PrefetchCoefficient_); 
+        } 
+        if (settings.PrefetchWatermark_) { 
+            hdrr.set_prefetch_watermark(*settings.PrefetchWatermark_); 
+        } 
 
         return request;
     }
diff --git a/ydb/public/sdk/cpp/client/ydb_rate_limiter/rate_limiter.h b/ydb/public/sdk/cpp/client/ydb_rate_limiter/rate_limiter.h
index dca90fbe63..fe14a27834 100644
--- a/ydb/public/sdk/cpp/client/ydb_rate_limiter/rate_limiter.h
+++ b/ydb/public/sdk/cpp/client/ydb_rate_limiter/rate_limiter.h
@@ -27,21 +27,21 @@ struct THierarchicalDrrSettings : public TOperationRequestSettings<TDerived> {
     // This means that maximum burst size might be equal to max_units_per_second.
     // Must be nonnegative.
     FLUENT_SETTING_OPTIONAL(double, MaxBurstSizeCoefficient);
-
-    // Prefetch in local bucket up to PrefetchCoefficient*MaxUnitsPerSecond units (full size).
-    // Default value is inherited from parent or 0.2 for root.
-    // Disables prefetching if any negative value is set
-    // (It is useful to avoid bursts in case of large number of local buckets).
-    FLUENT_SETTING_OPTIONAL(double, PrefetchCoefficient);
-
-    void DisablePrefetching() {
-        PrefetchCoefficient_ = -1.0;
-    }
-
-    // Prefetching starts if there is less than PrefetchWatermark fraction of full local bucket left.
-    // Default value is inherited from parent or 0.75 for root.
-    // Must be nonnegative and less than or equal to 1.
-    FLUENT_SETTING_OPTIONAL(double, PrefetchWatermark);
+ 
+    // Prefetch in local bucket up to PrefetchCoefficient*MaxUnitsPerSecond units (full size). 
+    // Default value is inherited from parent or 0.2 for root. 
+    // Disables prefetching if any negative value is set 
+    // (It is useful to avoid bursts in case of large number of local buckets). 
+    FLUENT_SETTING_OPTIONAL(double, PrefetchCoefficient); 
+ 
+    void DisablePrefetching() { 
+        PrefetchCoefficient_ = -1.0; 
+    } 
+ 
+    // Prefetching starts if there is less than PrefetchWatermark fraction of full local bucket left. 
+    // Default value is inherited from parent or 0.75 for root. 
+    // Must be nonnegative and less than or equal to 1. 
+    FLUENT_SETTING_OPTIONAL(double, PrefetchWatermark); 
 };
 
 // Settings for create resource request.
@@ -105,21 +105,21 @@ struct TDescribeResourceResult : public TStatus {
             return MaxBurstSizeCoefficient_;
         }
 
-        // Prefetch in local bucket up to PrefetchCoefficient*MaxUnitsPerSecond units (full size).
-        TMaybe<double> GetPrefetchCoefficient() const {
-            return PrefetchCoefficient_;
-        }
-
-        // Prefetching starts if there is less than PrefetchWatermark fraction of full local bucket left.
-        TMaybe<double> GetPrefetchWatermark() const {
-            return PrefetchWatermark_;
-        }
-
+        // Prefetch in local bucket up to PrefetchCoefficient*MaxUnitsPerSecond units (full size). 
+        TMaybe<double> GetPrefetchCoefficient() const { 
+            return PrefetchCoefficient_; 
+        } 
+ 
+        // Prefetching starts if there is less than PrefetchWatermark fraction of full local bucket left. 
+        TMaybe<double> GetPrefetchWatermark() const { 
+            return PrefetchWatermark_; 
+        } 
+ 
     private:
         TMaybe<double> MaxUnitsPerSecond_;
         TMaybe<double> MaxBurstSizeCoefficient_;
-        TMaybe<double> PrefetchCoefficient_;
-        TMaybe<double> PrefetchWatermark_;
+        TMaybe<double> PrefetchCoefficient_; 
+        TMaybe<double> PrefetchWatermark_; 
     };
 
     TDescribeResourceResult(TStatus status, const Ydb::RateLimiter::DescribeResourceResult& result);