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/* -*- 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 XPCOM_BASE_CYCLECOLLECTORSTATS_H_
#define XPCOM_BASE_CYCLECOLLECTORSTATS_H_
#include <cstdint>
#include "mozilla/TimeStamp.h"
namespace mozilla {
struct CycleCollectorStats {
// Return the statistics struct for the current cycle-collecting thread, which
// will have initialized it during startup.
static CycleCollectorStats* Get();
CycleCollectorStats();
void Clear();
void PrepareForCycleCollection(TimeStamp aNow);
void AfterPrepareForCycleCollectionSlice(TimeStamp aDeadline,
TimeStamp aBeginTime,
TimeStamp aMaybeAfterGCTime);
void AfterCycleCollectionSlice();
void AfterSyncForgetSkippable(TimeStamp beginTime);
void AfterForgetSkippable(TimeStamp aStartTime, TimeStamp aEndTime,
uint32_t aRemovedPurples, bool aInIdle);
void AfterCycleCollection();
void SendTelemetry(TimeDuration aCCNowDuration, TimeStamp aPrevCCEnd) const;
// Time the current slice began, including any GC finishing.
TimeStamp mBeginSliceTime;
// Time the previous slice of the current CC ended.
TimeStamp mEndSliceTime;
// Time the current cycle collection began.
TimeStamp mBeginTime;
// The longest GC finishing duration for any slice of the current CC.
TimeDuration mMaxGCDuration;
// True if we ran sync forget skippable in any slice of the current CC.
bool mRanSyncForgetSkippable = false;
// Number of suspected objects at the start of the current CC.
uint32_t mSuspected = 0;
// The longest duration spent on sync forget skippable in any slice of the
// current CC.
TimeDuration mMaxSkippableDuration;
// The longest pause of any slice in the current CC.
TimeDuration mMaxSliceTime;
// The longest slice time since ClearMaxCCSliceTime() was called.
TimeDuration mMaxSliceTimeSinceClear;
// The total amount of time spent actually running the current CC.
TimeDuration mTotalSliceTime;
// True if we were locked out by the GC in any slice of the current CC.
bool mAnyLockedOut = false;
// A file to dump CC activity to; set by MOZ_CCTIMER environment variable.
FILE* mFile = nullptr;
// In case CC slice was triggered during idle time, set to the end of the idle
// period.
TimeStamp mIdleDeadline;
TimeDuration mMinForgetSkippableTime;
TimeDuration mMaxForgetSkippableTime;
TimeDuration mTotalForgetSkippableTime;
uint32_t mForgetSkippableBeforeCC = 0;
uint32_t mRemovedPurples = 0;
};
} // namespace mozilla
#endif // XPCOM_BASE_CYCLECOLLECTORSTATS_H_
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