Intermediate changes

commit_hash:21bc37ea2a290cb645c95fe2c94882484c7001a4

1 files changed, 20 insertions, 1 deletions

diff --git a/util/datetime/benchmark/gmtime_r/main.cpp b/util/datetime/benchmark/gmtime_r/main.cpp
index a3356d780c3..705f81006dd 100644
--- a/util/datetime/benchmark/gmtime_r/main.cpp
+++ b/util/datetime/benchmark/gmtime_r/main.cpp
@@ -34,11 +34,30 @@ void BM_GmTimeRRandom(benchmark::State& state, TDuration window) {
     }
 }
 
+void BM_gmtime_r_Random(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(gmtime_r(&v, &buf));
+    }
+}
+
 BENCHMARK(BM_GmTimeR);
 BENCHMARK(BM_gmtime_r);
 BENCHMARK_CAPTURE(BM_GmTimeRRandom, last_hour, TDuration::Hours(1));
+BENCHMARK_CAPTURE(BM_gmtime_r_Random, 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_gmtime_r_Random, last_day, TDuration::Days(1));
+BENCHMARK_CAPTURE(BM_GmTimeRRandom, last_month, TDuration::Days(31));
+BENCHMARK_CAPTURE(BM_gmtime_r_Random, last_month, TDuration::Days(31));
 BENCHMARK_CAPTURE(BM_GmTimeRRandom, last_year, TDuration::Days(365));
+BENCHMARK_CAPTURE(BM_gmtime_r_Random, last_year, TDuration::Days(365));
 BENCHMARK_CAPTURE(BM_GmTimeRRandom, last_decade, TDuration::Days(3653));
+BENCHMARK_CAPTURE(BM_gmtime_r_Random, last_decade, TDuration::Days(3653));
 BENCHMARK_CAPTURE(BM_GmTimeRRandom, last_half_centry, TDuration::Days(18262));
+BENCHMARK_CAPTURE(BM_gmtime_r_Random, last_half_century, TDuration::Days(18262));