1 files changed, 55 insertions, 0 deletions
diff --git a/library/cpp/yt/system/benchmarks/thread.cpp b/library/cpp/yt/system/benchmarks/thread.cpp
new file mode 100644
index 00000000000..5aa5f7dc2d9
--- /dev/null
+++ b/library/cpp/yt/system/benchmarks/thread.cpp
@@ -0,0 +1,55 @@
+#include <benchmark/benchmark.h>
+
+#include <library/cpp/yt/system/thread_id.h>
+#include <library/cpp/yt/system/thread_name.h>
+
+#include <util/system/thread.h>
+
+namespace NYT {
+namespace {
+
+////////////////////////////////////////////////////////////////////////////////
+
+void BM_GetSystemThreadId(benchmark::State& state)
+{
+    // Cached gettid: only the first call per thread hits the kernel.
+    for (auto _ : state) {
+        benchmark::DoNotOptimize(GetSystemThreadId());
+    }
+}
+
+BENCHMARK(BM_GetSystemThreadId);
+
+void BM_GetSequentialThreadId(benchmark::State& state)
+{
+    for (auto _ : state) {
+        benchmark::DoNotOptimize(GetSequentialThreadId());
+    }
+}
+
+BENCHMARK(BM_GetSequentialThreadId);
+
+void BM_RawGetTid(benchmark::State& state)
+{
+    // Uncached gettid syscall, for comparison.
+    for (auto _ : state) {
+        benchmark::DoNotOptimize(::TThread::CurrentThreadNumericId());
+    }
+}
+
+BENCHMARK(BM_RawGetTid);
+
+void BM_GetCurrentThreadName(benchmark::State& state)
+{
+    // TLS-cached thread name (also read by TOriginAttributes::Capture).
+    for (auto _ : state) {
+        benchmark::DoNotOptimize(GetCurrentThreadName());
+    }
+}
+
+BENCHMARK(BM_GetCurrentThreadName);
+
+////////////////////////////////////////////////////////////////////////////////
+
+} // namespace
+} // namespace NYT