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// Copyright 2020 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/embedder_support/android/metrics/memory_metrics_logger.h"
#include "base/compiler_specific.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/ref_counted.h"
#include "base/metrics/histogram_functions.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/thread_pool.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "services/resource_coordinator/public/cpp/memory_instrumentation/browser_metrics.h"
#include "services/resource_coordinator/public/cpp/memory_instrumentation/memory_instrumentation.h"
using memory_instrumentation::GetPrivateFootprintHistogramName;
using memory_instrumentation::HistogramProcessType;
namespace metrics {
namespace {
MemoryMetricsLogger* g_instance = nullptr;
// Called once the metrics have been determined. Does the actual logging.
void RecordMemoryMetricsImpl(
MemoryMetricsLogger::RecordCallback done_callback,
bool success,
std::unique_ptr<memory_instrumentation::GlobalMemoryDump> dump) {
if (!success) {
if (done_callback)
std::move(done_callback).Run(false);
return;
}
uint64_t total_private_footprint_kb = 0;
for (const auto& process_dump : dump->process_dumps()) {
total_private_footprint_kb += process_dump.os_dump().private_footprint_kb;
switch (process_dump.process_type()) {
case memory_instrumentation::mojom::ProcessType::BROWSER: {
MEMORY_METRICS_HISTOGRAM_MB(
GetPrivateFootprintHistogramName(HistogramProcessType::kBrowser),
process_dump.os_dump().private_footprint_kb / 1024);
break;
}
case memory_instrumentation::mojom::ProcessType::RENDERER: {
// On the desktop this may be attributed to an 'extension', but as
// android doesn't support extensions there is no checking.
MEMORY_METRICS_HISTOGRAM_MB(
GetPrivateFootprintHistogramName(HistogramProcessType::kRenderer),
process_dump.os_dump().private_footprint_kb / 1024);
break;
}
case memory_instrumentation::mojom::ProcessType::GPU: {
MEMORY_METRICS_HISTOGRAM_MB(
GetPrivateFootprintHistogramName(HistogramProcessType::kGpu),
process_dump.os_dump().private_footprint_kb / 1024);
break;
}
// Currently this class only records metrics for the browser and
// renderer process, as it originated from WebView, where there are no
// other processes.
case memory_instrumentation::mojom::ProcessType::ARC:
[[fallthrough]];
case memory_instrumentation::mojom::ProcessType::UTILITY:
[[fallthrough]];
case memory_instrumentation::mojom::ProcessType::PLUGIN:
[[fallthrough]];
case memory_instrumentation::mojom::ProcessType::OTHER:
break;
}
}
if (total_private_footprint_kb) {
MEMORY_METRICS_HISTOGRAM_MB("Memory.Total.PrivateMemoryFootprint",
total_private_footprint_kb / 1024);
}
if (done_callback)
std::move(done_callback).Run(true);
}
} // namespace
// State is used to trigger logging to stop. State is accessed on both the main
// thread and the background task runner.
struct MemoryMetricsLogger::State : public base::RefCountedThreadSafe<State> {
State() = default;
State(const State&) = delete;
State& operator=(const State&) = delete;
// MemoryInstrumentation requires a SequencedTaskRunner.
scoped_refptr<base::SequencedTaskRunner> task_runner;
bool stop_logging = false;
private:
friend class base::RefCountedThreadSafe<State>;
~State() = default;
};
MemoryMetricsLogger::MemoryMetricsLogger()
: state_(base::MakeRefCounted<State>()) {
g_instance = this;
state_->task_runner = base::ThreadPool::CreateSequencedTaskRunner({});
state_->task_runner->PostTask(
FROM_HERE,
base::BindOnce(&MemoryMetricsLogger::RecordMemoryMetricsAfterDelay,
state_));
}
MemoryMetricsLogger::~MemoryMetricsLogger() {
g_instance = nullptr;
state_->stop_logging = true;
}
// static
MemoryMetricsLogger* MemoryMetricsLogger::GetInstanceForTesting() {
return g_instance;
}
void MemoryMetricsLogger::ScheduleRecordForTesting(
RecordCallback done_callback) {
state_->task_runner->PostTask(
FROM_HERE, base::BindOnce(&MemoryMetricsLogger::RecordMemoryMetrics,
state_, std::move(done_callback)));
}
// static
void MemoryMetricsLogger::RecordMemoryMetricsAfterDelay(
scoped_refptr<State> state) {
if (state->stop_logging)
return;
state->task_runner->PostDelayedTask(
FROM_HERE,
base::BindOnce(&MemoryMetricsLogger::RecordMemoryMetrics, state,
RecordCallback()),
memory_instrumentation::GetDelayForNextMemoryLog());
}
// static
void MemoryMetricsLogger::RecordMemoryMetrics(scoped_refptr<State> state,
RecordCallback done_callback) {
auto* instrumentation =
memory_instrumentation::MemoryInstrumentation::GetInstance();
if (!instrumentation) {
// Content layer is not initialized yet, nothing to log.
return;
}
instrumentation->RequestGlobalDump(
{}, base::BindOnce(&RecordMemoryMetricsImpl, std::move(done_callback)));
RecordMemoryMetricsAfterDelay(state);
}
} // namespace metrics
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