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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 "chrome/browser/metrics/metrics_memory_details.h"
#include <stddef.h>
#include <vector>
#include "base/location.h"
#include "base/metrics/histogram_macros.h"
#include "base/strings/utf_string_conversions.h"
#include "base/task/single_thread_task_runner.h"
#include "build/build_config.h"
#include "chrome/browser/site_isolation/site_details.h"
#include "components/nacl/common/nacl_process_type.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/render_widget_host.h"
#include "content/public/browser/render_widget_host_iterator.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_constants.h"
#include "content/public/common/process_type.h"
#include "ppapi/buildflags/buildflags.h"
namespace {
void CountRenderProcessHosts(size_t* initialized_and_not_dead, size_t* all) {
*initialized_and_not_dead = *all = 0;
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
for (auto iter = content::RenderProcessHost::AllHostsIterator();
!iter.IsAtEnd(); iter.Advance()) {
content::RenderProcessHost& render_process_host = *iter.GetCurrentValue();
++*all;
if (render_process_host.IsInitializedAndNotDead())
++*initialized_and_not_dead;
}
}
} // namespace
MetricsMemoryDetails::MetricsMemoryDetails(base::OnceClosure callback)
: callback_(std::move(callback)) {}
MetricsMemoryDetails::~MetricsMemoryDetails() = default;
void MetricsMemoryDetails::OnDetailsAvailable() {
UpdateHistograms();
base::SingleThreadTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, std::move(callback_));
}
void MetricsMemoryDetails::UpdateHistograms() {
// Reports a set of memory metrics to UMA.
const ProcessData& browser = *ChromeBrowser();
int renderer_count = 0;
for (auto& process : browser.processes) {
if (process.process_type == content::PROCESS_TYPE_RENDERER) {
ProcessMemoryInformation::RendererProcessType renderer_type =
process.renderer_type;
switch (renderer_type) {
case ProcessMemoryInformation::RENDERER_EXTENSION:
case ProcessMemoryInformation::RENDERER_CHROME:
continue;
case ProcessMemoryInformation::RENDERER_UNKNOWN:
NOTREACHED() << "Unknown renderer process type.";
case ProcessMemoryInformation::RENDERER_NORMAL:
default:
renderer_count++;
continue;
}
}
}
#if BUILDFLAG(IS_CHROMEOS)
// Chrome OS exposes system-wide graphics driver memory which has historically
// been a source of leak/bloat.
base::GraphicsMemoryInfoKB meminfo;
if (base::GetGraphicsMemoryInfo(&meminfo)) {
UMA_HISTOGRAM_MEMORY_MB("Memory.Graphics",
meminfo.gpu_memory_size / 1024 / 1024);
}
#endif
size_t initialized_and_not_dead_rphs;
size_t all_rphs;
CountRenderProcessHosts(&initialized_and_not_dead_rphs, &all_rphs);
UpdateSiteIsolationMetrics(initialized_and_not_dead_rphs);
UMA_HISTOGRAM_COUNTS_1000("Memory.ProcessCount2",
static_cast<int>(browser.processes.size()));
UMA_HISTOGRAM_COUNTS_1000("Memory.RendererProcessCount2", renderer_count);
UMA_HISTOGRAM_COUNTS_1000("Memory.RenderProcessHost.Count2.All", all_rphs);
UMA_HISTOGRAM_COUNTS_1000(
"Memory.RenderProcessHost.Count2.InitializedAndNotDead",
initialized_and_not_dead_rphs);
}
void MetricsMemoryDetails::UpdateSiteIsolationMetrics(
size_t live_process_count) {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
// Track site data for predicting process counts with out-of-process iframes.
// See site_details.h.
BrowserContextSiteDataMap site_data_map;
// First pass, collate the widgets by process ID.
std::unique_ptr<content::RenderWidgetHostIterator> widget_it(
content::RenderWidgetHost::GetRenderWidgetHosts());
while (content::RenderWidgetHost* widget = widget_it->GetNextHost()) {
// Ignore processes that don't have a connection, such as crashed tabs,
// or processes that are still launching.
if (!widget->GetProcess()->IsReady())
continue;
content::RenderViewHost* rvh = content::RenderViewHost::From(widget);
if (!rvh)
continue;
content::WebContents* contents =
content::WebContents::FromRenderViewHost(rvh);
if (!contents)
continue;
// Skip if this is not the RVH for the primary main frame of |contents|, as
// we want to call SiteDetails::CollectSiteInfo() once per WebContents.
if (rvh !=
contents->GetPrimaryPage().GetMainDocument().GetRenderViewHost()) {
// |rvh| is for a subframe document or a non primary page main document.
continue;
}
// The rest of this block will happen only once per WebContents.
SiteData& site_data = site_data_map[contents->GetBrowserContext()];
SiteDetails::CollectSiteInfo(contents->GetPrimaryPage(), &site_data);
}
SiteDetails::UpdateHistograms(site_data_map, live_process_count);
}
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