| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "cc/metrics/compositor_timing_history.h" |
| |
| #include "base/logging.h" |
| #include "base/memory/raw_ptr.h" |
| #include "base/test/scoped_feature_list.h" |
| #include "base/time/time.h" |
| #include "cc/base/features.h" |
| #include "cc/debug/rendering_stats_instrumentation.h" |
| #include "cc/metrics/dropped_frame_counter.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace cc { |
| namespace { |
| |
| class CompositorTimingHistoryTest; |
| |
| class TestCompositorTimingHistory : public CompositorTimingHistory { |
| public: |
| TestCompositorTimingHistory(CompositorTimingHistoryTest* test, |
| RenderingStatsInstrumentation* rendering_stats) |
| : CompositorTimingHistory(false, RENDERER_UMA, rendering_stats), |
| test_(test) {} |
| |
| TestCompositorTimingHistory(const TestCompositorTimingHistory&) = delete; |
| TestCompositorTimingHistory& operator=(const TestCompositorTimingHistory&) = |
| delete; |
| |
| const RollingTimeDeltaHistory& bmf_start_to_ready_to_commit_critical_history() |
| const { |
| return bmf_start_to_ready_to_commit_critical_history_; |
| } |
| const RollingTimeDeltaHistory& |
| bmf_start_to_ready_to_commit_not_critical_history() const { |
| return bmf_start_to_ready_to_commit_not_critical_history_; |
| } |
| const RollingTimeDeltaHistory& bmf_queue_to_activate_critical_history() |
| const { |
| return bmf_queue_to_activate_critical_history_; |
| } |
| |
| protected: |
| base::TimeTicks Now() const override; |
| |
| raw_ptr<CompositorTimingHistoryTest> test_; |
| }; |
| |
| class CompositorTimingHistoryTest : public testing::Test { |
| public: |
| CompositorTimingHistoryTest() |
| : feature_list(features::kDurationEstimatesInCompositorTimingHistory), |
| rendering_stats_(RenderingStatsInstrumentation::Create()), |
| timing_history_(this, rendering_stats_.get()) { |
| AdvanceNowBy(base::Milliseconds(1)); |
| timing_history_.SetRecordingEnabled(true); |
| } |
| |
| void AdvanceNowBy(base::TimeDelta delta) { now_ += delta; } |
| |
| base::TimeTicks Now() { return now_; } |
| |
| protected: |
| base::test::ScopedFeatureList feature_list; |
| std::unique_ptr<RenderingStatsInstrumentation> rendering_stats_; |
| TestCompositorTimingHistory timing_history_; |
| base::TimeTicks now_; |
| uint64_t sequence_number = 0; |
| DroppedFrameCounter dropped_counter; |
| |
| viz::BeginFrameArgs GetFakeBeginFrameArg(bool on_critical_path = true) { |
| viz::BeginFrameArgs args = viz::BeginFrameArgs(); |
| const uint64_t kSourceId = 1; |
| args.frame_id = {kSourceId, ++sequence_number}; |
| args.frame_time = Now(); |
| args.on_critical_path = on_critical_path; |
| return args; |
| } |
| }; |
| |
| base::TimeTicks TestCompositorTimingHistory::Now() const { |
| return test_->Now(); |
| } |
| |
| TEST_F(CompositorTimingHistoryTest, AllSequential_Commit) { |
| base::TimeDelta one_second = base::Seconds(1); |
| |
| // Critical BeginMainFrames are faster than non critical ones, |
| // as expected. |
| base::TimeDelta begin_main_frame_queue_duration = base::Milliseconds(1); |
| base::TimeDelta begin_main_frame_start_to_ready_to_commit_duration = |
| base::Milliseconds(1); |
| base::TimeDelta prepare_tiles_duration = base::Milliseconds(2); |
| base::TimeDelta prepare_tiles_end_to_ready_to_activate_duration = |
| base::Milliseconds(1); |
| base::TimeDelta commit_to_ready_to_activate_duration = base::Milliseconds(3); |
| base::TimeDelta commit_duration = base::Milliseconds(1); |
| base::TimeDelta activate_duration = base::Milliseconds(4); |
| base::TimeDelta draw_duration = base::Milliseconds(5); |
| |
| timing_history_.WillBeginMainFrame(GetFakeBeginFrameArg()); |
| AdvanceNowBy(begin_main_frame_queue_duration); |
| timing_history_.BeginMainFrameStarted(Now()); |
| AdvanceNowBy(begin_main_frame_start_to_ready_to_commit_duration); |
| timing_history_.NotifyReadyToCommit(); |
| timing_history_.WillCommit(); |
| AdvanceNowBy(commit_duration); |
| timing_history_.DidCommit(); |
| timing_history_.WillPrepareTiles(); |
| AdvanceNowBy(prepare_tiles_duration); |
| timing_history_.DidPrepareTiles(); |
| AdvanceNowBy(prepare_tiles_end_to_ready_to_activate_duration); |
| timing_history_.ReadyToActivate(); |
| // Do not count idle time between notification and actual activation. |
| AdvanceNowBy(one_second); |
| timing_history_.WillActivate(); |
| AdvanceNowBy(activate_duration); |
| timing_history_.DidActivate(); |
| // Do not count idle time between activate and draw. |
| AdvanceNowBy(one_second); |
| timing_history_.WillDraw(); |
| AdvanceNowBy(draw_duration); |
| timing_history_.DidDraw(true, false); |
| |
| EXPECT_EQ(begin_main_frame_queue_duration, |
| timing_history_.BeginMainFrameQueueDurationCriticalEstimate()); |
| EXPECT_EQ(begin_main_frame_queue_duration, |
| timing_history_.BeginMainFrameQueueDurationNotCriticalEstimate()); |
| |
| EXPECT_EQ( |
| begin_main_frame_start_to_ready_to_commit_duration, |
| timing_history_.BeginMainFrameStartToReadyToCommitDurationEstimate()); |
| EXPECT_EQ(commit_duration, timing_history_.CommitDurationEstimate()); |
| EXPECT_EQ(commit_to_ready_to_activate_duration, |
| timing_history_.CommitToReadyToActivateDurationEstimate()); |
| EXPECT_EQ(prepare_tiles_duration, |
| timing_history_.PrepareTilesDurationEstimate()); |
| EXPECT_EQ(activate_duration, timing_history_.ActivateDurationEstimate()); |
| EXPECT_EQ(draw_duration, timing_history_.DrawDurationEstimate()); |
| } |
| |
| TEST_F(CompositorTimingHistoryTest, AllSequential_BeginMainFrameAborted) { |
| base::TimeDelta one_second = base::Seconds(1); |
| |
| base::TimeDelta begin_main_frame_queue_duration = base::Milliseconds(1); |
| base::TimeDelta begin_main_frame_start_to_ready_to_commit_duration = |
| base::Milliseconds(1); |
| base::TimeDelta prepare_tiles_duration = base::Milliseconds(2); |
| base::TimeDelta prepare_tiles_end_to_ready_to_activate_duration = |
| base::Milliseconds(1); |
| base::TimeDelta activate_duration = base::Milliseconds(4); |
| base::TimeDelta draw_duration = base::Milliseconds(5); |
| |
| viz::BeginFrameArgs args_ = GetFakeBeginFrameArg(false); |
| timing_history_.WillBeginMainFrame(args_); |
| AdvanceNowBy(begin_main_frame_queue_duration); |
| timing_history_.BeginMainFrameStarted(Now()); |
| AdvanceNowBy(begin_main_frame_start_to_ready_to_commit_duration); |
| // BeginMainFrameAborted counts as a commit complete. |
| timing_history_.BeginMainFrameAborted(); |
| timing_history_.WillPrepareTiles(); |
| AdvanceNowBy(prepare_tiles_duration); |
| timing_history_.DidPrepareTiles(); |
| AdvanceNowBy(prepare_tiles_end_to_ready_to_activate_duration); |
| // Do not count idle time between notification and actual activation. |
| AdvanceNowBy(one_second); |
| timing_history_.WillActivate(); |
| AdvanceNowBy(activate_duration); |
| timing_history_.DidActivate(); |
| // Do not count idle time between activate and draw. |
| AdvanceNowBy(one_second); |
| timing_history_.WillDraw(); |
| AdvanceNowBy(draw_duration); |
| timing_history_.DidDraw(false, false); |
| |
| EXPECT_EQ(base::TimeDelta(), |
| timing_history_.BeginMainFrameQueueDurationCriticalEstimate()); |
| EXPECT_EQ(begin_main_frame_queue_duration, |
| timing_history_.BeginMainFrameQueueDurationNotCriticalEstimate()); |
| |
| EXPECT_EQ(prepare_tiles_duration, |
| timing_history_.PrepareTilesDurationEstimate()); |
| EXPECT_EQ(activate_duration, timing_history_.ActivateDurationEstimate()); |
| EXPECT_EQ(draw_duration, timing_history_.DrawDurationEstimate()); |
| } |
| |
| TEST_F(CompositorTimingHistoryTest, BeginMainFrame_CriticalFaster) { |
| // Critical BeginMainFrames are faster than non critical ones. |
| base::TimeDelta begin_main_frame_queue_duration_critical = |
| base::Milliseconds(1); |
| base::TimeDelta begin_main_frame_queue_duration_not_critical = |
| base::Milliseconds(2); |
| base::TimeDelta begin_main_frame_start_to_ready_to_commit_duration = |
| base::Milliseconds(1); |
| |
| viz::BeginFrameArgs args_ = GetFakeBeginFrameArg(); |
| timing_history_.WillBeginMainFrame(args_); |
| AdvanceNowBy(begin_main_frame_queue_duration_critical); |
| timing_history_.BeginMainFrameStarted(Now()); |
| AdvanceNowBy(begin_main_frame_start_to_ready_to_commit_duration); |
| timing_history_.BeginMainFrameAborted(); |
| |
| args_ = GetFakeBeginFrameArg(false); |
| timing_history_.WillBeginMainFrame(args_); |
| AdvanceNowBy(begin_main_frame_queue_duration_not_critical); |
| timing_history_.BeginMainFrameStarted(Now()); |
| AdvanceNowBy(begin_main_frame_start_to_ready_to_commit_duration); |
| timing_history_.BeginMainFrameAborted(); |
| |
| // Since the critical BeginMainFrames are faster than non critical ones, |
| // the expectations are straightforward. |
| EXPECT_EQ(begin_main_frame_queue_duration_critical, |
| timing_history_.BeginMainFrameQueueDurationCriticalEstimate()); |
| EXPECT_EQ(begin_main_frame_queue_duration_not_critical, |
| timing_history_.BeginMainFrameQueueDurationNotCriticalEstimate()); |
| } |
| |
| TEST_F(CompositorTimingHistoryTest, BeginMainFrames_OldCriticalSlower) { |
| // Critical BeginMainFrames are slower than non critical ones, |
| // which is unexpected, but could occur if one type of frame |
| // hasn't been sent for a significant amount of time. |
| base::TimeDelta begin_main_frame_queue_duration_critical = |
| base::Milliseconds(2); |
| base::TimeDelta begin_main_frame_queue_duration_not_critical = |
| base::Milliseconds(1); |
| base::TimeDelta begin_main_frame_start_to_ready_to_commit_duration = |
| base::Milliseconds(1); |
| |
| // A single critical frame that is slow. |
| viz::BeginFrameArgs args_ = GetFakeBeginFrameArg(); |
| timing_history_.WillBeginMainFrame(args_); |
| AdvanceNowBy(begin_main_frame_queue_duration_critical); |
| timing_history_.BeginMainFrameStarted(Now()); |
| AdvanceNowBy(begin_main_frame_start_to_ready_to_commit_duration); |
| // BeginMainFrameAborted counts as a commit complete. |
| timing_history_.BeginMainFrameAborted(); |
| |
| // A bunch of faster non critical frames that are newer. |
| for (int i = 0; i < 100; i++) { |
| args_ = GetFakeBeginFrameArg(false); |
| timing_history_.WillBeginMainFrame(args_); |
| AdvanceNowBy(begin_main_frame_queue_duration_not_critical); |
| timing_history_.BeginMainFrameStarted(Now()); |
| AdvanceNowBy(begin_main_frame_start_to_ready_to_commit_duration); |
| // BeginMainFrameAborted counts as a commit complete. |
| timing_history_.BeginMainFrameAborted(); |
| } |
| |
| // Recent fast non critical BeginMainFrames should result in the |
| // critical estimate also being fast. |
| EXPECT_EQ(begin_main_frame_queue_duration_not_critical, |
| timing_history_.BeginMainFrameQueueDurationCriticalEstimate()); |
| EXPECT_EQ(begin_main_frame_queue_duration_not_critical, |
| timing_history_.BeginMainFrameQueueDurationNotCriticalEstimate()); |
| } |
| |
| TEST_F(CompositorTimingHistoryTest, BeginMainFrames_NewCriticalSlower) { |
| // Critical BeginMainFrames are slower than non critical ones, |
| // which is unexpected, but could occur if one type of frame |
| // hasn't been sent for a significant amount of time. |
| base::TimeDelta begin_main_frame_queue_duration_critical = |
| base::Milliseconds(2); |
| base::TimeDelta begin_main_frame_queue_duration_not_critical = |
| base::Milliseconds(1); |
| base::TimeDelta begin_main_frame_start_to_ready_to_commit_duration = |
| base::Milliseconds(1); |
| |
| // A single non critical frame that is fast. |
| viz::BeginFrameArgs args_ = GetFakeBeginFrameArg(false); |
| timing_history_.WillBeginMainFrame(args_); |
| AdvanceNowBy(begin_main_frame_queue_duration_not_critical); |
| timing_history_.BeginMainFrameStarted(Now()); |
| AdvanceNowBy(begin_main_frame_start_to_ready_to_commit_duration); |
| timing_history_.BeginMainFrameAborted(); |
| |
| // A bunch of slower critical frames that are newer. |
| for (int i = 0; i < 100; i++) { |
| args_ = GetFakeBeginFrameArg(); |
| timing_history_.WillBeginMainFrame(args_); |
| AdvanceNowBy(begin_main_frame_queue_duration_critical); |
| timing_history_.BeginMainFrameStarted(Now()); |
| AdvanceNowBy(begin_main_frame_start_to_ready_to_commit_duration); |
| timing_history_.BeginMainFrameAborted(); |
| } |
| |
| // Recent slow critical BeginMainFrames should result in the |
| // not critical estimate also being slow. |
| EXPECT_EQ(begin_main_frame_queue_duration_critical, |
| timing_history_.BeginMainFrameQueueDurationCriticalEstimate()); |
| EXPECT_EQ(begin_main_frame_queue_duration_critical, |
| timing_history_.BeginMainFrameQueueDurationNotCriticalEstimate()); |
| } |
| |
| TEST_F(CompositorTimingHistoryTest, BeginMainFrameToActivateDuration) { |
| viz::BeginFrameArgs args_ = GetFakeBeginFrameArg(true); |
| timing_history_.WillBeginMainFrame(args_); |
| AdvanceNowBy(base::Milliseconds(1)); |
| timing_history_.BeginMainFrameStarted(Now()); |
| AdvanceNowBy(base::Milliseconds(2)); |
| timing_history_.NotifyReadyToCommit(); |
| AdvanceNowBy(base::Milliseconds(3)); |
| timing_history_.WillCommit(); |
| AdvanceNowBy(base::Milliseconds(4)); |
| timing_history_.DidCommit(); |
| AdvanceNowBy(base::Milliseconds(5)); |
| timing_history_.ReadyToActivate(); |
| AdvanceNowBy(base::Milliseconds(6)); |
| timing_history_.WillActivate(); |
| AdvanceNowBy(base::Milliseconds(7)); |
| timing_history_.DidActivate(); |
| EXPECT_EQ( |
| 1u, |
| timing_history_.bmf_queue_to_activate_critical_history().sample_count()); |
| EXPECT_EQ( |
| base::Milliseconds(1 + 2 + 3 + 4 + 5 + 6 + 7), |
| timing_history_.bmf_queue_to_activate_critical_history().Percentile(0.)); |
| } |
| |
| TEST_F(CompositorTimingHistoryTest, OnCriticalPath) { |
| viz::BeginFrameArgs bmf_args = GetFakeBeginFrameArg(true); |
| timing_history_.WillBeginMainFrame(bmf_args); |
| AdvanceNowBy(base::Milliseconds(1)); |
| timing_history_.BeginMainFrameStarted(Now()); |
| AdvanceNowBy(base::Milliseconds(1)); |
| timing_history_.NotifyReadyToCommit(); |
| AdvanceNowBy(base::Milliseconds(1)); |
| timing_history_.WillCommit(); |
| AdvanceNowBy(base::Milliseconds(1)); |
| timing_history_.DidCommit(); |
| AdvanceNowBy(base::Milliseconds(1)); |
| timing_history_.ReadyToActivate(); |
| AdvanceNowBy(base::Milliseconds(1)); |
| |
| // The previous frame should still be treated as on_critical_path |
| bmf_args = GetFakeBeginFrameArg(false); |
| timing_history_.WillBeginMainFrame(bmf_args); |
| |
| timing_history_.WillActivate(); |
| AdvanceNowBy(base::Milliseconds(1)); |
| timing_history_.DidActivate(); |
| |
| EXPECT_EQ(1u, timing_history_.bmf_start_to_ready_to_commit_critical_history() |
| .sample_count()); |
| EXPECT_EQ(base::Milliseconds(2), |
| timing_history_.bmf_start_to_ready_to_commit_critical_history() |
| .Percentile(0.)); |
| EXPECT_EQ(0u, |
| timing_history_.bmf_start_to_ready_to_commit_not_critical_history() |
| .sample_count()); |
| EXPECT_EQ( |
| 1u, |
| timing_history_.bmf_queue_to_activate_critical_history().sample_count()); |
| EXPECT_EQ( |
| base::Milliseconds(7), |
| timing_history_.bmf_queue_to_activate_critical_history().Percentile(0.)); |
| |
| timing_history_.BeginMainFrameStarted(Now()); |
| AdvanceNowBy(base::Milliseconds(1)); |
| timing_history_.NotifyReadyToCommit(); |
| AdvanceNowBy(base::Milliseconds(1)); |
| timing_history_.WillCommit(); |
| AdvanceNowBy(base::Milliseconds(1)); |
| timing_history_.DidCommit(); |
| AdvanceNowBy(base::Milliseconds(1)); |
| timing_history_.ReadyToActivate(); |
| AdvanceNowBy(base::Milliseconds(1)); |
| timing_history_.WillActivate(); |
| AdvanceNowBy(base::Milliseconds(1)); |
| |
| // The previous frame should still be treated as not on_critical_path |
| bmf_args = GetFakeBeginFrameArg(true); |
| timing_history_.WillBeginMainFrame(bmf_args); |
| timing_history_.DidActivate(); |
| |
| EXPECT_EQ(1u, timing_history_.bmf_start_to_ready_to_commit_critical_history() |
| .sample_count()); |
| EXPECT_EQ(1u, |
| timing_history_.bmf_start_to_ready_to_commit_not_critical_history() |
| .sample_count()); |
| EXPECT_EQ( |
| 1u, |
| timing_history_.bmf_queue_to_activate_critical_history().sample_count()); |
| } |
| |
| TEST_F(CompositorTimingHistoryTest, BeginMainFrameQueueDuration) { |
| viz::BeginFrameArgs args_ = GetFakeBeginFrameArg(true); |
| timing_history_.WillBeginMainFrame(args_); |
| AdvanceNowBy(base::Milliseconds(1)); |
| timing_history_.BeginMainFrameStarted(Now()); |
| AdvanceNowBy(base::Milliseconds(2)); |
| timing_history_.NotifyReadyToCommit(); |
| AdvanceNowBy(base::Milliseconds(3)); |
| timing_history_.WillCommit(); |
| AdvanceNowBy(base::Milliseconds(4)); |
| timing_history_.DidCommit(); |
| AdvanceNowBy(base::Milliseconds(5)); |
| timing_history_.ReadyToActivate(); |
| AdvanceNowBy(base::Milliseconds(6)); |
| timing_history_.WillBeginMainFrame(args_); |
| AdvanceNowBy(base::Milliseconds(7)); |
| timing_history_.BeginMainFrameStarted(Now()); |
| AdvanceNowBy(base::Milliseconds(8)); |
| timing_history_.BeginMainFrameAborted(); |
| AdvanceNowBy(base::Milliseconds(9)); |
| timing_history_.WillActivate(); |
| AdvanceNowBy(base::Milliseconds(10)); |
| timing_history_.DidActivate(); |
| EXPECT_EQ( |
| 1u, |
| timing_history_.bmf_queue_to_activate_critical_history().sample_count()); |
| // The bmf queueing duration should be 1ms, not the 7ms for the aborted frame. |
| EXPECT_EQ( |
| base::Milliseconds(1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10), |
| timing_history_.bmf_queue_to_activate_critical_history().Percentile(0.)); |
| } |
| |
| } // namespace |
| } // namespace cc |