blob: 353c3379e9ba19509fe9646c135a4a230e466a37 [file] [log] [blame]
// Copyright 2019 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/frame_sequence_tracker.h"
#include "base/macros.h"
#include "base/test/metrics/histogram_tester.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cc {
TEST(FrameSequenceMetricsTest, SlowerThread) {
base::HistogramTester histogram_tester;
FrameSequenceMetrics first(FrameSequenceTrackerType::kTouchScroll, nullptr);
first.impl_throughput().frames_expected = 200;
first.impl_throughput().frames_produced = 190;
first.main_throughput().frames_expected = 100;
first.main_throughput().frames_produced = 50;
// slower thread throughput is computed at ReportMetrics().
first.ReportMetrics();
std::string metric =
"Graphics.Smoothness.PercentDroppedFrames.SlowerThread.TouchScroll";
EXPECT_EQ(histogram_tester.GetBucketCount(metric, 50), 1);
}
TEST(FrameSequenceMetricsTest, MergeMetrics) {
// Create a metric with only a small number of frames. It shouldn't report any
// metrics.
FrameSequenceMetrics first(FrameSequenceTrackerType::kTouchScroll, nullptr);
first.impl_throughput().frames_expected = 20;
first.impl_throughput().frames_produced = 10;
EXPECT_FALSE(first.HasEnoughDataForReporting());
// Create a second metric with too few frames to report any metrics.
auto second = std::make_unique<FrameSequenceMetrics>(
FrameSequenceTrackerType::kTouchScroll, nullptr);
second->impl_throughput().frames_expected = 90;
second->impl_throughput().frames_produced = 60;
EXPECT_FALSE(second->HasEnoughDataForReporting());
// Merge the two metrics. The result should have enough frames to report
// metrics.
first.Merge(std::move(second));
EXPECT_TRUE(first.HasEnoughDataForReporting());
}
TEST(FrameSequenceMetricsTest, AllMetricsReported) {
base::HistogramTester histograms;
// Create a metric with enough frames on impl to be reported, but not enough
// on main.
FrameSequenceMetrics first(FrameSequenceTrackerType::kTouchScroll, nullptr);
first.impl_throughput().frames_expected = 120;
first.impl_throughput().frames_produced = 80;
first.main_throughput().frames_expected = 20;
first.main_throughput().frames_produced = 10;
EXPECT_TRUE(first.HasEnoughDataForReporting());
first.ReportMetrics();
// The compositor-thread metric should be reported, but not the main-thread
// metric.
histograms.ExpectTotalCount(
"Graphics.Smoothness.PercentDroppedFrames.CompositorThread.TouchScroll",
1u);
histograms.ExpectTotalCount(
"Graphics.Smoothness.PercentDroppedFrames.MainThread.TouchScroll", 0u);
histograms.ExpectTotalCount(
"Graphics.Smoothness.PercentDroppedFrames.SlowerThread.TouchScroll", 1u);
// There should still be data left over for the main-thread.
EXPECT_TRUE(first.HasDataLeftForReporting());
auto second = std::make_unique<FrameSequenceMetrics>(
FrameSequenceTrackerType::kTouchScroll, nullptr);
second->impl_throughput().frames_expected = 110;
second->impl_throughput().frames_produced = 100;
second->main_throughput().frames_expected = 90;
first.Merge(std::move(second));
EXPECT_TRUE(first.HasEnoughDataForReporting());
first.ReportMetrics();
histograms.ExpectTotalCount(
"Graphics.Smoothness.PercentDroppedFrames.CompositorThread.TouchScroll",
2u);
histograms.ExpectTotalCount(
"Graphics.Smoothness.PercentDroppedFrames.MainThread.TouchScroll", 1u);
histograms.ExpectTotalCount(
"Graphics.Smoothness.PercentDroppedFrames.SlowerThread.TouchScroll", 2u);
// All the metrics have now been reported. No data should be left over.
EXPECT_FALSE(first.HasDataLeftForReporting());
FrameSequenceMetrics third(FrameSequenceTrackerType::kUniversal, nullptr);
third.impl_throughput().frames_expected = 120;
third.impl_throughput().frames_produced = 80;
third.main_throughput().frames_expected = 120;
third.main_throughput().frames_produced = 80;
EXPECT_TRUE(third.HasEnoughDataForReporting());
third.ReportMetrics();
histograms.ExpectTotalCount(
"Graphics.Smoothness.PercentDroppedFrames.CompositorThread.Universal",
1u);
histograms.ExpectTotalCount(
"Graphics.Smoothness.PercentDroppedFrames.MainThread.Universal", 1u);
histograms.ExpectTotalCount(
"Graphics.Smoothness.PercentDroppedFrames.SlowerThread.Universal", 1u);
}
TEST(FrameSequenceMetricsTest, IrrelevantMetricsNotReported) {
base::HistogramTester histograms;
// Create a metric with enough frames on impl to be reported, but not enough
// on main.
FrameSequenceMetrics first(FrameSequenceTrackerType::kCompositorAnimation,
nullptr);
first.impl_throughput().frames_expected = 120;
first.impl_throughput().frames_produced = 80;
first.main_throughput().frames_expected = 120;
first.main_throughput().frames_produced = 80;
EXPECT_TRUE(first.HasEnoughDataForReporting());
first.ReportMetrics();
// The compositor-thread metric should be reported, but not the main-thread
// or slower-thread metric.
histograms.ExpectTotalCount(
"Graphics.Smoothness.PercentDroppedFrames.CompositorThread."
"CompositorAnimation",
1u);
histograms.ExpectTotalCount(
"Graphics.Smoothness.PercentDroppedFrames.MainThread.CompositorAnimation",
0u);
histograms.ExpectTotalCount(
"Graphics.Smoothness.PercentDroppedFrames.SlowerThread."
"CompositorAnimation",
0u);
// Not reported, but the data should be reset.
EXPECT_EQ(first.impl_throughput().frames_expected, 0u);
EXPECT_EQ(first.impl_throughput().frames_produced, 0u);
EXPECT_EQ(first.main_throughput().frames_expected, 0u);
EXPECT_EQ(first.main_throughput().frames_produced, 0u);
FrameSequenceMetrics second(FrameSequenceTrackerType::kRAF, nullptr);
second.impl_throughput().frames_expected = 120;
second.impl_throughput().frames_produced = 80;
second.main_throughput().frames_expected = 120;
second.main_throughput().frames_produced = 80;
EXPECT_TRUE(second.HasEnoughDataForReporting());
second.ReportMetrics();
// The main-thread metric should be reported, but not the compositor-thread
// or slower-thread metric.
histograms.ExpectTotalCount(
"Graphics.Smoothness.PercentDroppedFrames.CompositorThread.RAF", 0u);
histograms.ExpectTotalCount(
"Graphics.Smoothness.PercentDroppedFrames.MainThread.RAF", 1u);
histograms.ExpectTotalCount(
"Graphics.Smoothness.PercentDroppedFrames.SlowerThread.RAF", 0u);
}
} // namespace cc