aboutsummaryrefslogtreecommitdiffstats
path: root/util
diff options
context:
space:
mode:
authorrobot-piglet <robot-piglet@yandex-team.com>2024-03-22 18:57:39 +0300
committerrobot-piglet <robot-piglet@yandex-team.com>2024-03-22 19:07:02 +0300
commit3440878efbe2d889da7070f8f8c1f09c7d162a68 (patch)
tree78d4a3e0677bf6c35ec3997d176502f00b7ef862 /util
parente20d8d7107fe83f612b832be904fac0257138f30 (diff)
downloadydb-3440878efbe2d889da7070f8f8c1f09c7d162a68.tar.gz
Intermediate changes
Diffstat (limited to 'util')
-rw-r--r--util/datetime/benchmark/format/main.cpp59
-rw-r--r--util/datetime/benchmark/format/ya.make12
-rw-r--r--util/datetime/benchmark/gmtime_r/main.cpp35
-rw-r--r--util/datetime/benchmark/gmtime_r/ya.make2
-rw-r--r--util/datetime/benchmark/ya.make1
5 files changed, 102 insertions, 7 deletions
diff --git a/util/datetime/benchmark/format/main.cpp b/util/datetime/benchmark/format/main.cpp
new file mode 100644
index 0000000000..9c930d4714
--- /dev/null
+++ b/util/datetime/benchmark/format/main.cpp
@@ -0,0 +1,59 @@
+#include <library/cpp/testing/gbenchmark/benchmark.h>
+
+#include <util/datetime/base.h>
+#include <util/stream/str.h>
+
+class TTimestampGenerator {
+public:
+ TInstant operator()() {
+ TInstant result = TInstant::MicroSeconds(Base_ + Current_);
+ Current_ = (Current_ + Step_) % Range_;
+ return result;
+ }
+
+private:
+ static constexpr ui64 Step_ = TDuration::MicroSeconds(1234567891011).MicroSeconds();
+ static constexpr ui64 Range_ = 1ull << 45; // ~ year
+ static constexpr ui64 Base_ = TInstant::Seconds(1605320321).MicroSeconds();
+ ui64 Current_ = 0;
+};
+
+Y_FORCE_INLINE static void BenchFormatStream(auto&& formatFn, benchmark::State& state) {
+ TTimestampGenerator gen;
+ TStringStream ss;
+ for (auto _ : state) {
+ ss << formatFn(gen());
+ Y_DO_NOT_OPTIMIZE_AWAY(ss.Str());
+ ss.clear();
+ }
+}
+
+Y_FORCE_INLINE static void BenchToString(auto&& toStringFn, benchmark::State& state) {
+ TTimestampGenerator gen;
+ TString s;
+ for (auto _ : state) {
+ s = toStringFn(gen());
+ Y_DO_NOT_OPTIMIZE_AWAY(s);
+ }
+}
+
+void BM_FormatIsoLocal(benchmark::State& state) {
+ BenchFormatStream(FormatIsoLocal, state);
+}
+
+void BM_FormatLocal(benchmark::State& state) {
+ BenchFormatStream(FormatLocal, state);
+}
+
+void BM_ToStringIsoLocal(benchmark::State& state) {
+ BenchToString(std::mem_fn(&TInstant::ToIsoStringLocal), state);
+}
+
+void BM_ToStringLocal(benchmark::State& state) {
+ BenchToString(std::mem_fn(&TInstant::ToIsoStringLocal), state);
+}
+
+BENCHMARK(BM_FormatIsoLocal);
+BENCHMARK(BM_FormatLocal);
+BENCHMARK(BM_ToStringIsoLocal);
+BENCHMARK(BM_ToStringLocal);
diff --git a/util/datetime/benchmark/format/ya.make b/util/datetime/benchmark/format/ya.make
new file mode 100644
index 0000000000..ef5e7b0c93
--- /dev/null
+++ b/util/datetime/benchmark/format/ya.make
@@ -0,0 +1,12 @@
+SUBSCRIBER(g:util-subscribers)
+
+G_BENCHMARK()
+
+PEERDIR(
+)
+
+SRCS(
+ main.cpp
+)
+
+END()
diff --git a/util/datetime/benchmark/gmtime_r/main.cpp b/util/datetime/benchmark/gmtime_r/main.cpp
index a649ab3ccf..a3356d780c 100644
--- a/util/datetime/benchmark/gmtime_r/main.cpp
+++ b/util/datetime/benchmark/gmtime_r/main.cpp
@@ -1,21 +1,44 @@
-#include <library/cpp/testing/benchmark/bench.h>
+#include <library/cpp/testing/gbenchmark/benchmark.h>
-#include <util/draft/datetime.h>
+#include <util/datetime/base.h>
+#include <util/random/fast.h>
-Y_CPU_BENCHMARK(GmTimeR, iface) {
+void BM_GmTimeR(benchmark::State& state) {
time_t now = TInstant::Now().TimeT();
struct tm buf {};
- for (size_t i = 0; i < iface.Iterations(); ++i) {
+ for (auto _ : state) {
Y_DO_NOT_OPTIMIZE_AWAY(GmTimeR(&now, &buf));
}
}
-Y_CPU_BENCHMARK(gmtime_r, iface) {
+void BM_gmtime_r(benchmark::State& state) {
time_t now = TInstant::Now().TimeT();
struct tm buf {};
- for (size_t i = 0; i < iface.Iterations(); ++i) {
+ for (auto _ : state) {
Y_DO_NOT_OPTIMIZE_AWAY(gmtime_r(&now, &buf));
}
}
+
+void BM_GmTimeRRandom(benchmark::State& state, TDuration window) {
+ time_t now = TInstant::Now().TimeT();
+ struct tm buf {};
+
+ TFastRng<ui32> rng(2);
+ const size_t range = window.Seconds();
+ for (auto _ : state) {
+ size_t offset = rng.GenRand() % range;
+ time_t v = now - offset;
+ Y_DO_NOT_OPTIMIZE_AWAY(GmTimeR(&v, &buf));
+ }
+}
+
+BENCHMARK(BM_GmTimeR);
+BENCHMARK(BM_gmtime_r);
+BENCHMARK_CAPTURE(BM_GmTimeRRandom, last_hour, TDuration::Hours(1));
+BENCHMARK_CAPTURE(BM_GmTimeRRandom, last_day, TDuration::Days(1));
+BENCHMARK_CAPTURE(BM_GmTimeRRandom, last_mount, TDuration::Days(31));
+BENCHMARK_CAPTURE(BM_GmTimeRRandom, last_year, TDuration::Days(365));
+BENCHMARK_CAPTURE(BM_GmTimeRRandom, last_decade, TDuration::Days(3653));
+BENCHMARK_CAPTURE(BM_GmTimeRRandom, last_half_centry, TDuration::Days(18262));
diff --git a/util/datetime/benchmark/gmtime_r/ya.make b/util/datetime/benchmark/gmtime_r/ya.make
index 32acd7c1c0..5c86c85db0 100644
--- a/util/datetime/benchmark/gmtime_r/ya.make
+++ b/util/datetime/benchmark/gmtime_r/ya.make
@@ -1,6 +1,6 @@
SUBSCRIBER(g:util-subscribers)
-Y_BENCHMARK()
+G_BENCHMARK()
PEERDIR(
util/draft
diff --git a/util/datetime/benchmark/ya.make b/util/datetime/benchmark/ya.make
index 6c9ed6cfd4..a94bc6f0b6 100644
--- a/util/datetime/benchmark/ya.make
+++ b/util/datetime/benchmark/ya.make
@@ -1,5 +1,6 @@
SUBSCRIBER(g:util-subscribers)
RECURSE(
+ format
gmtime_r
)