absl: add Mutex::ReaderLock benchmark
PiperOrigin-RevId: 566961701
Change-Id: Id04e4c5a598f508a0fe7532ae8f084c583865f2d
diff --git a/absl/synchronization/mutex_benchmark.cc b/absl/synchronization/mutex_benchmark.cc
index b5d2fbc..0af56d9 100644
--- a/absl/synchronization/mutex_benchmark.cc
+++ b/absl/synchronization/mutex_benchmark.cc
@@ -34,6 +34,14 @@
}
BENCHMARK(BM_Mutex)->UseRealTime()->Threads(1)->ThreadPerCpu();
+void BM_ReaderLock(benchmark::State& state) {
+ static absl::Mutex* mu = new absl::Mutex;
+ for (auto _ : state) {
+ absl::ReaderMutexLock lock(mu);
+ }
+}
+BENCHMARK(BM_ReaderLock)->UseRealTime()->Threads(1)->ThreadPerCpu();
+
static void DelayNs(int64_t ns, int* data) {
int64_t end = absl::base_internal::CycleClock::Now() +
ns * absl::base_internal::CycleClock::Frequency() / 1e9;
