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+// Copyright 2019 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "benchmark/benchmark.h"
+#include "absl/base/internal/periodic_sampler.h"
+
+namespace absl {
+namespace base_internal {
+namespace {
+
+template <typename Sampler>
+void BM_Sample(Sampler* sampler, benchmark::State& state) {
+ for (auto _ : state) {
+ benchmark::DoNotOptimize(sampler);
+ benchmark::DoNotOptimize(sampler->Sample());
+ }
+}
+
+template <typename Sampler>
+void BM_SampleMinunumInlined(Sampler* sampler, benchmark::State& state) {
+ for (auto _ : state) {
+ benchmark::DoNotOptimize(sampler);
+ if (ABSL_PREDICT_FALSE(sampler->SubtleMaybeSample())) {
+ benchmark::DoNotOptimize(sampler->SubtleConfirmSample());
+ }
+ }
+}
+
+void BM_PeriodicSampler_ShortSample(benchmark::State& state) {
+ struct Tag {};
+ PeriodicSampler<Tag, 1024> sampler;
+ BM_Sample(&sampler, state);
+}
+BENCHMARK(BM_PeriodicSampler_ShortSample);
+
+void BM_PeriodicSampler_LongSample(benchmark::State& state) {
+ struct Tag {};
+ PeriodicSampler<Tag, 1024 * 1024> sampler;
+ BM_Sample(&sampler, state);
+}
+BENCHMARK(BM_PeriodicSampler_LongSample);
+
+void BM_PeriodicSampler_LongSampleMinunumInlined(benchmark::State& state) {
+ struct Tag {};
+ PeriodicSampler<Tag, 1024 * 1024> sampler;
+ BM_SampleMinunumInlined(&sampler, state);
+}
+BENCHMARK(BM_PeriodicSampler_LongSampleMinunumInlined);
+
+void BM_PeriodicSampler_Disabled(benchmark::State& state) {
+ struct Tag {};
+ PeriodicSampler<Tag, 0> sampler;
+ BM_Sample(&sampler, state);
+}
+BENCHMARK(BM_PeriodicSampler_Disabled);
+
+} // namespace
+} // namespace base_internal
+} // namespace absl