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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gpu/perftests/measurements.h"
#include <stdint.h>
#include "base/logging.h"
#include "testing/perf/perf_result_reporter.h"
#include "ui/gl/gpu_timing.h"
namespace gpu {
Measurement::Measurement() = default;
Measurement::Measurement(const Measurement& m) = default;
Measurement::Measurement(const std::string& metric_basename,
const base::TimeDelta wall_time,
const base::TimeDelta cpu_time,
const base::TimeDelta gpu_time)
: metric_basename(metric_basename),
wall_time(wall_time),
cpu_time(cpu_time),
gpu_time(gpu_time) {}
void Measurement::PrintResult(const std::string& story) const {
auto reporter =
std::make_unique<perf_test::PerfResultReporter>(metric_basename, story);
reporter->RegisterImportantMetric("_wall", "ms");
reporter->AddResult("_wall", wall_time.InMillisecondsF());
if (cpu_time.InMicroseconds() >= 0) {
reporter->RegisterImportantMetric("_cpu", "ms");
reporter->AddResult("_cpu", cpu_time.InMillisecondsF());
}
if (gpu_time.InMicroseconds() >= 0) {
reporter->RegisterImportantMetric("_gpu", "ms");
reporter->AddResult("_gpu", gpu_time.InMillisecondsF());
}
}
Measurement& Measurement::Increment(const Measurement& m) {
wall_time += m.wall_time;
cpu_time += m.cpu_time;
gpu_time += m.gpu_time;
return *this;
}
Measurement Measurement::Divide(int a) const {
return Measurement(metric_basename, wall_time / a, cpu_time / a,
gpu_time / a);
}
Measurement::~Measurement() = default;
MeasurementTimers::MeasurementTimers(gl::GPUTimingClient* gpu_timing_client)
: wall_time_start_(), cpu_time_start_(), gpu_timer_() {
DCHECK(gpu_timing_client);
wall_time_start_ = base::TimeTicks::Now();
if (base::ThreadTicks::IsSupported()) {
base::ThreadTicks::WaitUntilInitialized();
cpu_time_start_ = base::ThreadTicks::Now();
} else {
static bool logged_once = false;
LOG_IF(WARNING, !logged_once) << "ThreadTicks not supported.";
logged_once = true;
}
if (gpu_timing_client->IsAvailable()) {
gpu_timer_ = gpu_timing_client->CreateGPUTimer(true);
gpu_timer_->Start();
}
}
void MeasurementTimers::Record() {
wall_time_ = base::TimeTicks::Now() - wall_time_start_;
if (base::ThreadTicks::IsSupported()) {
cpu_time_ = base::ThreadTicks::Now() - cpu_time_start_;
}
if (gpu_timer_.get()) {
gpu_timer_->End();
}
}
Measurement MeasurementTimers::GetAsMeasurement(
const std::string& metric_basename) {
DCHECK_NE(base::TimeDelta(),
wall_time_); // At least wall_time_ has been set.
if (!base::ThreadTicks::IsSupported()) {
cpu_time_ = base::Microseconds(-1);
}
int64_t gpu_time = -1;
if (gpu_timer_.get() != nullptr && gpu_timer_->IsAvailable()) {
gpu_time = gpu_timer_->GetDeltaElapsed();
}
return Measurement(metric_basename, wall_time_, cpu_time_,
base::Microseconds(gpu_time));
}
MeasurementTimers::~MeasurementTimers() {
if (gpu_timer_.get()) {
gpu_timer_->Destroy(true);
}
}
} // namespace gpu
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