chromium/base/synchronization/waitable_event_perftest.cc

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/memory/raw_ptr.h"
#include "base/synchronization/waitable_event.h"

#include <string>

#include "base/threading/simple_thread.h"
#include "base/time/time.h"
#include "base/timer/elapsed_timer.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/perf/perf_result_reporter.h"

namespace base {

namespace {

constexpr char kMetricPrefixWaitableEvent[] = …;
constexpr char kMetricWaitTime[] = …;
constexpr char kMetricSignalTime[] = …;
constexpr char kMetricElapsedCycles[] = …;
constexpr char kStorySingleThread[] = …;
constexpr char kStoryMultiThreadWaiter[] = …;
constexpr char kStoryMultiThreadSignaler[] = …;
constexpr char kStoryTimedThroughput[] = …;

perf_test::PerfResultReporter SetUpReporter(const std::string& story_name) { … }

class TraceWaitableEvent { … };

class SignalerThread : public SimpleThread { … };

void PrintPerfWaitableEvent(const TraceWaitableEvent* event,
                            const std::string& story_name,
                            size_t* elapsed_cycles = nullptr) { … }

}  // namespace

TEST(WaitableEventPerfTest, SingleThread) { … }

TEST(WaitableEventPerfTest, MultipleThreads) { … }

TEST(WaitableEventPerfTest, Throughput) { … }

}  // namespace base