Optimize TSpan methods to prevent unneeded object construction KIKIMR-15449 (#575)

4 files changed, 29 insertions, 14 deletions

diff --git a/ydb/core/blobstorage/backpressure/queue.cpp b/ydb/core/blobstorage/backpressure/queue.cpp
index fc83187df6a..b2402a32c67 100644
--- a/ydb/core/blobstorage/backpressure/queue.cpp
+++ b/ydb/core/blobstorage/backpressure/queue.cpp
@@ -203,9 +203,9 @@ void TBlobStorageQueue::SendToVDisk(const TActorContext& ctx, const TActorId& re
         ++*QueueItemsSent;
 
         // send item
-        item.Span.Event("SendToVDisk", {{
+        item.Span && item.Span.Event("SendToVDisk", {
             {"VDiskOrderNumber", vdiskOrderNumber}
-        }});
+        });
         item.Event.SendToVDisk(ctx, remoteVDisk, item.QueueCookie, item.MsgId, item.SequenceId, sendMeCostSettings,
             item.Span.GetTraceId(), ClientId, item.ProcessingTimer);
 
diff --git a/ydb/core/blobstorage/vdisk/huge/blobstorage_hullhuge.cpp b/ydb/core/blobstorage/vdisk/huge/blobstorage_hullhuge.cpp
index bf75aeaf74a..79acac7304e 100644
--- a/ydb/core/blobstorage/vdisk/huge/blobstorage_hullhuge.cpp
+++ b/ydb/core/blobstorage/vdisk/huge/blobstorage_hullhuge.cpp
@@ -193,7 +193,7 @@ LWTRACE_USING(BLOBSTORAGE_PROVIDER);
                             "Writer: bootstrap: id# %s chunkId# %u offset# %u storedBlobSize# %u "
                             "writtenSize# %u", HugeSlot.ToString().data(), chunkId, offset,
                             storedBlobSize, writtenSize));
-            Span.Event("Send_TEvChunkWrite", NWilson::TKeyValueList{{{"ChunkId", chunkId}, {"Offset", offset}, {"WrittenSize", writtenSize}}});
+            Span && Span.Event("Send_TEvChunkWrite", {{"ChunkId", chunkId}, {"Offset", offset}, {"WrittenSize", writtenSize}});
             auto ev = std::make_unique<NPDisk::TEvChunkWrite>(HugeKeeperCtx->PDiskCtx->Dsk->Owner,
                         HugeKeeperCtx->PDiskCtx->Dsk->OwnerRound, chunkId, offset,
                         partsPtr, Cookie, true, GetWritePriority(), false);
diff --git a/ydb/core/tablet_flat/flat_executor_txloglogic.cpp b/ydb/core/tablet_flat/flat_executor_txloglogic.cpp
index d3aa1160d59..24ad5c0a9d2 100644
--- a/ydb/core/tablet_flat/flat_executor_txloglogic.cpp
+++ b/ydb/core/tablet_flat/flat_executor_txloglogic.cpp
@@ -188,8 +188,9 @@ TLogicRedo::TCommitRWTransactionResult TLogicRedo::CommitRWTransaction(
 
             Batch->Commit->FirstTx->TxSpan.Attribute("BatchSize", batchSize);
 
-            seat->TxSpan.Attribute("Batched", true);
-            seat->TxSpan.Link(Batch->Commit->FirstTx->GetTxTraceId(), {});
+            seat->TxSpan
+                .Attribute("Batched", true)
+                .Link(Batch->Commit->FirstTx->GetTxTraceId());
         }
         
         Batch->Commit->PushTx(seat.Get());
diff --git a/ydb/library/actors/wilson/wilson_span.h b/ydb/library/actors/wilson/wilson_span.h
index 9cbf0f8c2d5..3db7786a0bf 100644
--- a/ydb/library/actors/wilson/wilson_span.h
+++ b/ydb/library/actors/wilson/wilson_span.h
@@ -159,29 +159,32 @@ namespace NWilson {
             return *this;
         }
 
-        TSpan& Name(TString name) {
+        template<typename T>
+        TSpan& Name(T&& name) {
             if (Y_UNLIKELY(*this)) {
-                Data->Span.set_name(std::move(name));
+                Data->Span.set_name(std::forward<T>(name));
             } else {
                 VerifyNotSent();
             }
             return *this;
         }
 
-        TSpan& Attribute(TString name, TAttributeValue value) {
+        template<typename T, typename T1>
+        TSpan& Attribute(T&& name, T1&& value) {
             if (Y_UNLIKELY(*this)) {
-                SerializeKeyValue(std::move(name), std::move(value), Data->Span.add_attributes());
+                SerializeKeyValue(std::forward<T>(name), std::forward<T1>(value), Data->Span.add_attributes());
             } else {
                 VerifyNotSent();
             }
             return *this;
         }
 
-        TSpan& Event(TString name, TKeyValueList attributes) {
+        template<typename T, typename T1 = std::initializer_list<std::pair<TString, TAttributeValue>>>
+        TSpan& Event(T&& name, T1&& attributes) {
             if (Y_UNLIKELY(*this)) {
                 auto *event = Data->Span.add_events();
                 event->set_time_unix_nano(TimeUnixNano());
-                event->set_name(std::move(name));
+                event->set_name(std::forward<T>(name));
                 for (auto&& [key, value] : attributes) {
                     SerializeKeyValue(std::move(key), std::move(value), event->add_attributes());
                 }
@@ -191,7 +194,13 @@ namespace NWilson {
             return *this;
         }
 
-        TSpan& Link(const TTraceId& traceId, TKeyValueList attributes) {
+        template<typename T>
+        TSpan& Event(T&& name) {
+            return Event(std::forward<T>(name), {});
+        }
+
+        template<typename T = std::initializer_list<std::pair<TString, TAttributeValue>>>
+        TSpan& Link(const TTraceId& traceId, T&& attributes) {
             if (Y_UNLIKELY(*this)) {
                 auto *link = Data->Span.add_links();
                 link->set_trace_id(traceId.GetTraceIdPtr(), traceId.GetTraceIdSize());
@@ -205,6 +214,10 @@ namespace NWilson {
             return *this;
         }
 
+        TSpan& Link(const TTraceId& traceId) {
+            return Link(traceId, {});
+        }
+
         void EndOk() {
             if (Y_UNLIKELY(*this)) {
                 auto *status = Data->Span.mutable_status();
@@ -215,11 +228,12 @@ namespace NWilson {
             }
         }
 
-        void EndError(TString error) {
+        template<typename T>
+        void EndError(T&& error) {
             if (Y_UNLIKELY(*this)) {
                 auto *status = Data->Span.mutable_status();
                 status->set_code(NTraceProto::Status::STATUS_CODE_ERROR);
-                status->set_message(std::move(error));
+                status->set_message(std::forward<T>(error));
                 End();
             } else {
                 VerifyNotSent();