a61acdde21
This patch adds a sliding window of recent calls to Poke() that is used to determine if the process is idle. This avoids running the memory telemetry when the process should be idle. Differential Revision: https://phabricator.services.mozilla.com/D232588
86 lines
2.0 KiB
C++
86 lines
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef mozilla_MemoryTelemetry_h
|
|
#define mozilla_MemoryTelemetry_h
|
|
|
|
#include "mozilla/TimeStamp.h"
|
|
#include "mozilla/Maybe.h"
|
|
#include "mozilla/Result.h"
|
|
#include "nsIObserver.h"
|
|
#include "nsITimer.h"
|
|
#include "nsTArray.h"
|
|
#include "nsWeakReference.h"
|
|
|
|
#include <functional>
|
|
|
|
class nsIEventTarget;
|
|
|
|
class TimeStampWindow;
|
|
|
|
namespace mozilla {
|
|
|
|
namespace ipc {
|
|
enum class ResponseRejectReason;
|
|
}
|
|
|
|
/**
|
|
* Periodically gathers memory usage metrics after cycle collection, and
|
|
* populates telemetry histograms with their values.
|
|
*/
|
|
class MemoryTelemetry final : public nsIObserver,
|
|
public nsSupportsWeakReference {
|
|
public:
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSIOBSERVER
|
|
|
|
static MemoryTelemetry& Get();
|
|
|
|
nsresult GatherReports(
|
|
const std::function<void()>& aCompletionCallback = nullptr);
|
|
|
|
/**
|
|
* Called to signal that we can begin collecting telemetry.
|
|
*/
|
|
void DelayedInit();
|
|
|
|
/**
|
|
* Notify that the browser is active and telemetry should be recorded soon.
|
|
*/
|
|
void Poke();
|
|
|
|
nsresult Shutdown();
|
|
|
|
private:
|
|
MemoryTelemetry();
|
|
|
|
~MemoryTelemetry() = default;
|
|
|
|
void Init();
|
|
|
|
static Result<uint32_t, nsresult> GetOpenTabsCount();
|
|
|
|
void GatherTotalMemory();
|
|
nsresult FinishGatheringTotalMemory(Maybe<int64_t> aTotalMemory,
|
|
const nsTArray<int64_t>& aChildSizes);
|
|
|
|
nsCOMPtr<nsIEventTarget> mThreadPool;
|
|
|
|
bool mGatheringTotalMemory = false;
|
|
|
|
TimeStamp mLastRun{};
|
|
TimeStamp mLastPoke{};
|
|
UniquePtr<TimeStampWindow> mPokeWindow;
|
|
nsCOMPtr<nsITimer> mTimer;
|
|
|
|
// True if startup is finished and it's okay to start gathering telemetry.
|
|
bool mCanRun = false;
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif // defined mozilla_MemoryTelemetry_h
|