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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/performance_manager/resource_attribution/memory_measurement_provider.h"
#include <utility>
#include "base/check.h"
#include "base/containers/contains.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/strings/string_number_conversions.h"
#include "base/time/time.h"
#include "components/performance_manager/public/features.h"
#include "components/performance_manager/public/graph/frame_node.h"
#include "components/performance_manager/public/graph/graph.h"
#include "components/performance_manager/public/graph/page_node.h"
#include "components/performance_manager/public/graph/process_node.h"
#include "components/performance_manager/public/graph/worker_node.h"
#include "components/performance_manager/public/resource_attribution/attribution_helpers.h"
#include "components/performance_manager/resource_attribution/node_data_describers.h"
#include "components/performance_manager/resource_attribution/performance_manager_aliases.h"
#include "components/performance_manager/resource_attribution/worker_client_pages.h"
#include "content/public/browser/browsing_instance_id.h"
#include "url/gurl.h"
#include "url/origin.h"
namespace resource_attribution {
namespace {
using performance_manager::features::kResourceAttributionIncludeOrigins;
template <typename FrameOrWorkerNode>
std::optional<OriginInBrowsingInstanceContext>
OriginInBrowsingInstanceContextForNode(
const FrameOrWorkerNode* node,
content::BrowsingInstanceId browsing_instance) {
if (!base::FeatureList::IsEnabled(kResourceAttributionIncludeOrigins)) {
return std::nullopt;
}
const std::optional<url::Origin> origin = node->GetOrigin();
if (!origin.has_value()) {
return std::nullopt;
}
return OriginInBrowsingInstanceContext(origin.value(), browsing_instance);
}
} // namespace
MemoryMeasurementProvider::MemoryMeasurementProvider(Graph* graph)
: graph_(graph) {
measurement_delegate_ =
MemoryMeasurementDelegate::GetDefaultFactory()->CreateDelegate(
graph_.get());
}
MemoryMeasurementProvider::~MemoryMeasurementProvider() = default;
void MemoryMeasurementProvider::SetDelegateFactoryForTesting(
MemoryMeasurementDelegate::Factory* factory) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
CHECK(factory);
measurement_delegate_ = factory->CreateDelegate(graph_.get());
}
void MemoryMeasurementProvider::RequestMemorySummary(ResultCallback callback) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
measurement_delegate_->RequestMemorySummary(
base::BindOnce(&MemoryMeasurementProvider::OnMemorySummary,
weak_factory_.GetWeakPtr(), std::move(callback)));
}
base::Value::Dict MemoryMeasurementProvider::DescribeFrameNodeData(
const FrameNode* node) const {
return DescribeContextData(node->GetResourceContext());
}
base::Value::Dict MemoryMeasurementProvider::DescribePageNodeData(
const PageNode* node) const {
return DescribeContextData(node->GetResourceContext());
}
base::Value::Dict MemoryMeasurementProvider::DescribeProcessNodeData(
const ProcessNode* node) const {
return DescribeContextData(node->GetResourceContext());
}
base::Value::Dict MemoryMeasurementProvider::DescribeWorkerNodeData(
const WorkerNode* node) const {
return DescribeContextData(node->GetResourceContext());
}
void MemoryMeasurementProvider::OnMemorySummary(
ResultCallback callback,
MemoryMeasurementDelegate::MemorySummaryMap process_summaries) {
using MemorySummaryMeasurement =
MemoryMeasurementDelegate::MemorySummaryMeasurement;
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
QueryResultMap results;
// Adds the memory from `summary` to a MemorySummaryResult for `context`.
// Returns true if a new result was created, false if one already existed.
auto accumulate_summary = [&results, now = base::TimeTicks::Now()](
const ResourceContext& context,
MemorySummaryMeasurement summary,
MeasurementAlgorithm algorithm) -> bool {
// Create a result with metadata if the key isn't in the map yet.
const auto [it, inserted] = results.try_emplace(
context, QueryResults{.memory_summary_result = MemorySummaryResult{
.metadata = ResultMetadata(now, algorithm),
}});
MemorySummaryResult& result = it->second.memory_summary_result.value();
if (!inserted) {
CHECK_LE(result.metadata.measurement_time, now);
CHECK_EQ(result.metadata.algorithm, algorithm);
}
result.resident_set_size_kb += summary.resident_set_size_kb;
result.private_footprint_kb += summary.private_footprint_kb;
return inserted;
};
// Iterate and record all process results.
for (const auto& [process_context, process_summary] : process_summaries) {
bool inserted =
accumulate_summary(process_context, process_summary,
MeasurementAlgorithm::kDirectMeasurement);
CHECK(inserted);
// Split results between all frames and workers in the process.
const ProcessNode* process_node = process_context.GetProcessNode();
if (!process_node) {
continue;
}
resource_attribution::SplitResourceAmongFramesAndWorkers(
process_summary, process_node,
[&](const FrameNode* f, MemorySummaryMeasurement summary) {
bool inserted = accumulate_summary(f->GetResourceContext(), summary,
MeasurementAlgorithm::kSplit);
CHECK(inserted);
accumulate_summary(f->GetPageNode()->GetResourceContext(), summary,
MeasurementAlgorithm::kSum);
std::optional<OriginInBrowsingInstanceContext>
origin_in_browsing_instance_context =
OriginInBrowsingInstanceContextForNode(
f, f->GetBrowsingInstanceId());
if (origin_in_browsing_instance_context.has_value()) {
accumulate_summary(origin_in_browsing_instance_context.value(),
summary, MeasurementAlgorithm::kSum);
}
},
[&](const WorkerNode* w, MemorySummaryMeasurement summary) {
bool inserted = accumulate_summary(w->GetResourceContext(), summary,
MeasurementAlgorithm::kSplit);
CHECK(inserted);
auto [client_pages, client_browsing_instances] =
GetWorkerClientPagesAndBrowsingInstances(w);
for (const PageNode* page_node : client_pages) {
accumulate_summary(page_node->GetResourceContext(), summary,
MeasurementAlgorithm::kSum);
}
for (content::BrowsingInstanceId browsing_instance :
client_browsing_instances) {
std::optional<OriginInBrowsingInstanceContext>
origin_in_browsing_instance_context =
OriginInBrowsingInstanceContextForNode(w,
browsing_instance);
if (origin_in_browsing_instance_context.has_value()) {
accumulate_summary(origin_in_browsing_instance_context.value(),
summary, MeasurementAlgorithm::kSum);
}
}
});
}
cached_results_ = results;
std::move(callback).Run(std::move(results));
}
base::Value::Dict MemoryMeasurementProvider::DescribeContextData(
const ResourceContext& context) const {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
base::Value::Dict dict;
const auto it = cached_results_.find(context);
if (it != cached_results_.end()) {
const MemorySummaryResult& result =
it->second.memory_summary_result.value();
dict.Merge(DescribeResultMetadata(result.metadata));
dict.Set("resident_set_size_kb",
base::NumberToString(result.resident_set_size_kb));
dict.Set("private_footprint_kb",
base::NumberToString(result.private_footprint_kb));
}
return dict;
}
} // namespace resource_attribution
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