| /* |
| * Copyright 2018 The Android Open Source Project |
| * |
| * 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 |
| * |
| * http://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 <base/bind.h> |
| #include <base/run_loop.h> |
| #include <base/threading/thread.h> |
| #include <benchmark/benchmark.h> |
| #include <future> |
| |
| #include "common/message_loop_thread.h" |
| #include "common/once_timer.h" |
| #include "common/repeating_timer.h" |
| #include "common/time_util.h" |
| #include "osi/include/alarm.h" |
| |
| using ::benchmark::State; |
| using bluetooth::common::MessageLoopThread; |
| using bluetooth::common::OnceTimer; |
| using bluetooth::common::RepeatingTimer; |
| using bluetooth::common::time_get_os_boottime_us; |
| |
| // fake get_main_message_loop implementation for alarm |
| base::MessageLoop* get_main_message_loop() { return nullptr; } |
| |
| namespace { |
| std::unordered_map<int, int> g_map; |
| std::shared_ptr<std::promise<void>> g_promise; |
| uint64_t g_start_time; |
| int g_scheduled_tasks; |
| int g_task_length; |
| int g_task_interval; |
| int g_task_counter; |
| |
| void TimerFire(void*) { g_promise->set_value(); } |
| |
| void AlarmSleepAndCountDelayedTime(void*) { |
| auto end_time_us = time_get_os_boottime_us(); |
| auto time_after_start_ms = (end_time_us - g_start_time) / 1000; |
| g_task_counter++; |
| g_map[time_after_start_ms - g_task_counter * g_task_interval]++; |
| std::this_thread::sleep_for(std::chrono::milliseconds(g_task_length)); |
| if (g_task_counter >= g_scheduled_tasks) { |
| g_promise->set_value(); |
| } |
| } |
| |
| } // namespace |
| |
| class BM_OsiAlarmTimer : public ::benchmark::Fixture { |
| protected: |
| void SetUp(State& st) override { |
| ::benchmark::Fixture::SetUp(st); |
| alarm_ = alarm_new("osi_alarm_timer_test"); |
| g_promise = std::make_shared<std::promise<void>>(); |
| } |
| |
| void TearDown(State& st) override { |
| g_promise = nullptr; |
| alarm_free(alarm_); |
| ::benchmark::Fixture::TearDown(st); |
| } |
| |
| alarm_t* alarm_ = nullptr; |
| }; |
| |
| BENCHMARK_DEFINE_F(BM_OsiAlarmTimer, timer_performance_ms)(State& state) { |
| auto milliseconds = static_cast<int>(state.range(0)); |
| for (auto _ : state) { |
| auto start_time_point = time_get_os_boottime_us(); |
| alarm_set(alarm_, milliseconds, &TimerFire, nullptr); |
| g_promise->get_future().get(); |
| auto end_time_point = time_get_os_boottime_us(); |
| auto duration = end_time_point - start_time_point; |
| state.SetIterationTime(duration * 1e-6); |
| } |
| }; |
| |
| BENCHMARK_REGISTER_F(BM_OsiAlarmTimer, timer_performance_ms) |
| ->Arg(1) |
| ->Arg(5) |
| ->Arg(10) |
| ->Arg(20) |
| ->Arg(100) |
| ->Arg(1000) |
| ->Arg(2000) |
| ->Iterations(1) |
| ->UseManualTime(); |
| |
| class BM_AlarmTaskTimer : public ::benchmark::Fixture { |
| protected: |
| void SetUp(State& st) override { |
| ::benchmark::Fixture::SetUp(st); |
| message_loop_thread_ = new MessageLoopThread("timer_benchmark"); |
| message_loop_thread_->StartUp(); |
| message_loop_thread_->EnableRealTimeScheduling(); |
| once_timer_ = new OnceTimer(); |
| repeating_timer_ = new RepeatingTimer(); |
| g_promise = std::make_shared<std::promise<void>>(); |
| } |
| |
| void TearDown(State& st) override { |
| g_promise = nullptr; |
| delete once_timer_; |
| once_timer_ = nullptr; |
| delete repeating_timer_; |
| repeating_timer_ = nullptr; |
| message_loop_thread_->ShutDown(); |
| delete message_loop_thread_; |
| message_loop_thread_ = nullptr; |
| ::benchmark::Fixture::TearDown(st); |
| } |
| |
| MessageLoopThread* message_loop_thread_; |
| OnceTimer* once_timer_; |
| RepeatingTimer* repeating_timer_; |
| }; |
| |
| BENCHMARK_DEFINE_F(BM_AlarmTaskTimer, timer_performance_ms)(State& state) { |
| auto milliseconds = static_cast<int>(state.range(0)); |
| for (auto _ : state) { |
| auto start_time_point = time_get_os_boottime_us(); |
| once_timer_->Schedule(message_loop_thread_->GetWeakPtr(), FROM_HERE, |
| base::BindOnce(&TimerFire, nullptr), |
| base::TimeDelta::FromMilliseconds(milliseconds)); |
| g_promise->get_future().get(); |
| once_timer_->Cancel(); |
| auto end_time_point = time_get_os_boottime_us(); |
| auto duration = end_time_point - start_time_point; |
| state.SetIterationTime(duration * 1e-6); |
| } |
| }; |
| |
| BENCHMARK_REGISTER_F(BM_AlarmTaskTimer, timer_performance_ms) |
| ->Arg(1) |
| ->Arg(5) |
| ->Arg(10) |
| ->Arg(20) |
| ->Arg(100) |
| ->Arg(1000) |
| ->Arg(2000) |
| ->Iterations(1) |
| ->UseManualTime(); |
| |
| class BM_OsiPeriodicAlarmTimer : public ::benchmark::Fixture { |
| protected: |
| void SetUp(State& st) override { |
| ::benchmark::Fixture::SetUp(st); |
| alarm_ = alarm_new_periodic("osi_alarm_timer_test"); |
| g_map.clear(); |
| g_promise = std::make_shared<std::promise<void>>(); |
| g_scheduled_tasks = 0; |
| g_task_length = 0; |
| g_task_interval = 0; |
| g_task_counter = 0; |
| } |
| |
| void TearDown(State& st) override { |
| g_promise = nullptr; |
| alarm_free(alarm_); |
| ::benchmark::Fixture::TearDown(st); |
| } |
| |
| alarm_t* alarm_ = nullptr; |
| }; |
| |
| BENCHMARK_DEFINE_F(BM_OsiPeriodicAlarmTimer, periodic_accuracy)(State& state) { |
| for (auto _ : state) { |
| g_scheduled_tasks = state.range(0); |
| g_task_length = state.range(1); |
| g_task_interval = state.range(2); |
| g_start_time = time_get_os_boottime_us(); |
| alarm_set(alarm_, g_task_interval, &AlarmSleepAndCountDelayedTime, nullptr); |
| g_promise->get_future().get(); |
| alarm_cancel(alarm_); |
| } |
| for (const auto& delay : g_map) { |
| state.counters[std::to_string(delay.first)] = delay.second; |
| } |
| }; |
| |
| BENCHMARK_REGISTER_F(BM_OsiPeriodicAlarmTimer, periodic_accuracy) |
| ->Args({2000, 1, 5}) |
| ->Args({2000, 3, 5}) |
| ->Args({2000, 1, 7}) |
| ->Args({2000, 3, 7}) |
| ->Args({2000, 1, 20}) |
| ->Args({2000, 5, 20}) |
| ->Args({2000, 10, 20}) |
| ->Args({2000, 15, 20}) |
| ->Iterations(1) |
| ->UseRealTime(); |
| |
| class BM_AlarmTaskPeriodicTimer : public ::benchmark::Fixture { |
| protected: |
| void SetUp(State& st) override { |
| ::benchmark::Fixture::SetUp(st); |
| message_loop_thread_ = new MessageLoopThread("timer_benchmark"); |
| message_loop_thread_->StartUp(); |
| message_loop_thread_->EnableRealTimeScheduling(); |
| once_timer_ = new OnceTimer(); |
| repeating_timer_ = new RepeatingTimer(); |
| g_map.clear(); |
| g_promise = std::make_shared<std::promise<void>>(); |
| g_scheduled_tasks = 0; |
| g_task_length = 0; |
| g_task_interval = 0; |
| g_task_counter = 0; |
| } |
| |
| void TearDown(State& st) override { |
| g_promise = nullptr; |
| delete once_timer_; |
| once_timer_ = nullptr; |
| delete repeating_timer_; |
| repeating_timer_ = nullptr; |
| message_loop_thread_->ShutDown(); |
| delete message_loop_thread_; |
| message_loop_thread_ = nullptr; |
| ::benchmark::Fixture::TearDown(st); |
| } |
| |
| MessageLoopThread* message_loop_thread_; |
| OnceTimer* once_timer_; |
| RepeatingTimer* repeating_timer_; |
| }; |
| |
| BENCHMARK_DEFINE_F(BM_AlarmTaskPeriodicTimer, periodic_accuracy) |
| (State& state) { |
| for (auto _ : state) { |
| g_scheduled_tasks = state.range(0); |
| g_task_length = state.range(1); |
| g_task_interval = state.range(2); |
| g_start_time = time_get_os_boottime_us(); |
| repeating_timer_->SchedulePeriodic( |
| message_loop_thread_->GetWeakPtr(), FROM_HERE, |
| base::BindRepeating(&AlarmSleepAndCountDelayedTime, nullptr), |
| base::TimeDelta::FromMilliseconds(g_task_interval)); |
| g_promise->get_future().get(); |
| repeating_timer_->Cancel(); |
| } |
| for (const auto& delay : g_map) { |
| state.counters[std::to_string(delay.first)] = delay.second; |
| } |
| }; |
| |
| BENCHMARK_REGISTER_F(BM_AlarmTaskPeriodicTimer, periodic_accuracy) |
| ->Args({2000, 1, 5}) |
| ->Args({2000, 3, 5}) |
| ->Args({2000, 1, 7}) |
| ->Args({2000, 3, 7}) |
| ->Args({2000, 1, 20}) |
| ->Args({2000, 5, 20}) |
| ->Args({2000, 10, 20}) |
| ->Args({2000, 15, 20}) |
| ->Iterations(1) |
| ->UseRealTime(); |
| |
| int main(int argc, char** argv) { |
| // Disable LOG() output from libchrome |
| logging::LoggingSettings log_settings; |
| log_settings.logging_dest = logging::LoggingDestination::LOG_NONE; |
| CHECK(logging::InitLogging(log_settings)) << "Failed to set up logging"; |
| ::benchmark::Initialize(&argc, argv); |
| if (::benchmark::ReportUnrecognizedArguments(argc, argv)) { |
| return 1; |
| } |
| ::benchmark::RunSpecifiedBenchmarks(); |
| } |