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Create a benchmarking target for the shell. (flutter#6420)
Also adds //flutter/benchmarking which, similar to //flutter/testing, allows for the creation of a benchmarking executable. This is also the target that contains benchmarking utilities.
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,26 @@ | ||
| # Copyright 2018 The Flutter Authors. All rights reserved. | ||
| # Use of this source code is governed by a BSD-style license that can be | ||
| # found in the LICENSE file. | ||
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| config("benchmark_config") { | ||
| include_dirs = [ "//third_party/benchmark:benchmark_config" ] | ||
| } | ||
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| source_set("benchmarking") { | ||
| testonly = true | ||
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| sources = [ | ||
| "benchmarking.cc", | ||
| "benchmarking.h", | ||
| ] | ||
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| public_deps = [ | ||
| "$flutter_root/fml", | ||
| "//third_party/benchmark", | ||
| ] | ||
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| public_configs = [ | ||
| "$flutter_root:config", | ||
| ":benchmark_config", | ||
| ] | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| // Copyright 2018 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| #include "benchmarking.h" | ||
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| #include "flutter/fml/icu_util.h" | ||
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| namespace benchmarking { | ||
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| int Main(int argc, char** argv) { | ||
| benchmark::Initialize(&argc, argv); | ||
| fml::icu::InitializeICU("icudtl.dat"); | ||
| ::benchmark::RunSpecifiedBenchmarks(); | ||
| return 0; | ||
| } | ||
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| } // namespace benchmarking | ||
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| int main(int argc, char** argv) { | ||
| return benchmarking::Main(argc, argv); | ||
| } |
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|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| // Copyright 2018 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| #ifndef FLUTTER_BENCHMARKING_BENCHMARKING_H_ | ||
| #define FLUTTER_BENCHMARKING_BENCHMARKING_H_ | ||
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| #include "benchmark/benchmark_api.h" | ||
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| namespace benchmarking { | ||
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| class ScopedPauseTiming { | ||
| public: | ||
| ScopedPauseTiming(::benchmark::State& state, bool enabled = true) | ||
| : state_(state), enabled_(enabled) { | ||
| if (enabled_) { | ||
| state_.PauseTiming(); | ||
| } | ||
| } | ||
| ~ScopedPauseTiming() { | ||
| if (enabled_) { | ||
| state_.ResumeTiming(); | ||
| } | ||
| } | ||
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| private: | ||
| ::benchmark::State& state_; | ||
| const bool enabled_; | ||
| }; | ||
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| } // namespace benchmarking | ||
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| #endif // FLUTTER_BENCHMARKING_BENCHMARKING_H_ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| // Copyright 2018 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| #include "flutter/benchmarking/benchmarking.h" | ||
| #include "flutter/fml/logging.h" | ||
| #include "flutter/shell/common/shell.h" | ||
| #include "flutter/shell/common/thread_host.h" | ||
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| namespace shell { | ||
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| static void StartupAndShutdownShell(benchmark::State& state, | ||
| bool measure_startup, | ||
| bool measure_shutdown) { | ||
| std::unique_ptr<Shell> shell; | ||
| std::unique_ptr<ThreadHost> thread_host; | ||
| { | ||
| benchmarking::ScopedPauseTiming pause(state, !measure_startup); | ||
| blink::Settings settings = {}; | ||
| settings.task_observer_add = [](intptr_t, fml::closure) {}; | ||
| settings.task_observer_remove = [](intptr_t) {}; | ||
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| // Measure the time it takes to setup the threads as well. | ||
| thread_host = std::make_unique<ThreadHost>( | ||
| "io.flutter.bench.", ThreadHost::Type::Platform | | ||
| ThreadHost::Type::GPU | ThreadHost::Type::IO | | ||
| ThreadHost::Type::UI); | ||
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| blink::TaskRunners task_runners( | ||
| "test", thread_host->platform_thread->GetTaskRunner(), | ||
| thread_host->gpu_thread->GetTaskRunner(), | ||
| thread_host->ui_thread->GetTaskRunner(), | ||
| thread_host->io_thread->GetTaskRunner()); | ||
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| shell = Shell::Create( | ||
| std::move(task_runners), settings, | ||
| [](Shell& shell) { | ||
| return std::make_unique<PlatformView>(shell, shell.GetTaskRunners()); | ||
| }, | ||
| [](Shell& shell) { | ||
| return std::make_unique<Rasterizer>(shell.GetTaskRunners()); | ||
| }); | ||
| } | ||
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| FML_CHECK(shell); | ||
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| { | ||
| benchmarking::ScopedPauseTiming pause(state, !measure_shutdown); | ||
| shell.reset(); // Shutdown is synchronous. | ||
| thread_host.reset(); | ||
| } | ||
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| FML_CHECK(!shell); | ||
| } | ||
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| static void BM_ShellInitialization(benchmark::State& state) { | ||
| while (state.KeepRunning()) { | ||
| StartupAndShutdownShell(state, true, false); | ||
| } | ||
| } | ||
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| BENCHMARK(BM_ShellInitialization); | ||
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| static void BM_ShellShutdown(benchmark::State& state) { | ||
| while (state.KeepRunning()) { | ||
| StartupAndShutdownShell(state, false, true); | ||
| } | ||
| } | ||
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| BENCHMARK(BM_ShellShutdown); | ||
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| static void BM_ShellInitializationAndShutdown(benchmark::State& state) { | ||
| while (state.KeepRunning()) { | ||
| StartupAndShutdownShell(state, true, true); | ||
| } | ||
| } | ||
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| BENCHMARK(BM_ShellInitializationAndShutdown); | ||
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| } // namespace shell |