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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/startup_metric_utils/gpu/startup_metric_utils.h"
#include <type_traits>
#include "base/check.h"
#include "base/command_line.h"
#include "base/location.h"
#include "base/metrics/histogram_functions.h"
#include "components/startup_metric_utils/common/startup_metric_utils.h"
namespace startup_metric_utils {
GpuStartupMetricRecorder& GetGpu() {
// If this ceases to be true, Get{Common,Gpu,Browser} need to be changed to
// use base::NoDestructor.
static_assert(
std::is_trivially_destructible<GpuStartupMetricRecorder>::value,
"Startup metric recorder classes must be trivially destructible.");
// The GPU service gets created in browser tests, where we are not in the gpu
// process, and so gating by --type=gpu-process being present on the command
// line doesn't make sense.
static GpuStartupMetricRecorder instance;
return instance;
}
void GpuStartupMetricRecorder::RecordGpuInitializationTicks(
base::TimeTicks ticks) {
DCHECK(gpu_initialized_ticks_.is_null());
gpu_initialized_ticks_ = ticks;
DCHECK(!gpu_initialized_ticks_.is_null());
}
void GpuStartupMetricRecorder::RecordGpuInitialized(base::TimeTicks ticks) {
if (GetCommon().process_creation_ticks_.is_null() ||
GetCommon().application_start_ticks_.is_null() ||
GetCommon().chrome_main_entry_ticks_.is_null()) {
// This gets called on GPU initialization which occurs in contexts other
// than Chrome launch (such as content tests), and in these cases, we
// haven't initialized these values, though this is expected.
return;
}
GetCommon().AssertFirstCallInSession(FROM_HERE);
RecordGpuInitializationTicks(ticks);
GetCommon().EmitHistogramWithTraceEvent(
&base::UmaHistogramMediumTimes,
"Startup.GPU.LoadTime.ProcessCreationToGpuInitialized",
GetCommon().process_creation_ticks_, gpu_initialized_ticks_);
GetCommon().EmitHistogramWithTraceEvent(
&base::UmaHistogramMediumTimes,
"Startup.GPU.LoadTime.ApplicationStartToGpuInitialized",
GetCommon().application_start_ticks_, gpu_initialized_ticks_);
GetCommon().EmitHistogramWithTraceEvent(
&base::UmaHistogramMediumTimes,
"Startup.GPU.LoadTime.ChromeMainToGpuInitialized",
GetCommon().chrome_main_entry_ticks_, gpu_initialized_ticks_);
if (!GetCommon().preread_end_ticks_.is_null() &&
!GetCommon().preread_begin_ticks_.is_null()) {
GetCommon().EmitHistogramWithTraceEvent(
&base::UmaHistogramLongTimes, "Startup.GPU.LoadTime.PreReadFile",
GetCommon().preread_begin_ticks_, GetCommon().preread_end_ticks_);
}
}
} // namespace startup_metric_utils
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