#include <gc-tracer.h>

Collaboration diagram for v8::internal::GCTracer:

Classes
struct	BackgroundCounter

class	Event

struct	IncrementalInfos

class	RecordGCPhasesInfo

class	Scope

Public Types
enum class	MarkingType { kAtomic , kIncremental }

Public Member Functions
	GCTracer (Heap *heap, base::TimeTicks startup_time, GarbageCollectionReason initial_gc_reason=GarbageCollectionReason::kUnknown)

	GCTracer (const GCTracer &)=delete

GCTracer &	operator= (const GCTracer &)=delete

V8_INLINE CollectionEpoch	CurrentEpoch (Scope::ScopeId id) const

void	StartObservablePause (base::TimeTicks time)

void	StopObservablePause (GarbageCollector collector, base::TimeTicks time)

void	UpdateCurrentEvent (GarbageCollectionReason gc_reason, const char *collector_reason)

void	StartCycle (GarbageCollector collector, GarbageCollectionReason gc_reason, const char *collector_reason, MarkingType marking)

void	StopYoungCycleIfFinished ()

void	StopFullCycleIfFinished ()

void	UpdateMemoryBalancerGCSpeed ()

void	StartAtomicPause ()

void	StopAtomicPause ()

void	StartInSafepoint (base::TimeTicks time)

void	StopInSafepoint (base::TimeTicks time)

void	NotifyFullSweepingCompletedAndStopCycleIfFinished ()

void	NotifyYoungSweepingCompletedAndStopCycleIfFinished ()

void	NotifyYoungSweepingCompleted ()

void	NotifyFullCppGCCompleted ()

void	NotifyYoungCppGCRunning ()

void	NotifyYoungCppGCCompleted ()

void	SampleAllocation (base::TimeTicks current, size_t new_space_counter_bytes, size_t old_generation_counter_bytes, size_t embedder_counter_bytes)

void	AddCompactionEvent (double duration, size_t live_bytes_compacted)

void	AddSurvivalRatio (double survival_ratio)

void	SampleConcurrencyEsimate (size_t concurrency)

void	AddIncrementalMarkingStep (double duration, size_t bytes)

void	AddIncrementalSweepingStep (double duration)

double	IncrementalMarkingSpeedInBytesPerMillisecond () const

std::optional< double >	EmbedderSpeedInBytesPerMillisecond () const

std::optional< double >	YoungGenerationSpeedInBytesPerMillisecond (YoungGenerationSpeedMode mode) const

std::optional< double >	CompactionSpeedInBytesPerMillisecond () const

std::optional< double >	MarkCompactSpeedInBytesPerMillisecond () const

std::optional< double >	FinalIncrementalMarkCompactSpeedInBytesPerMillisecond () const

std::optional< double >	OldGenerationSpeedInBytesPerMillisecond ()

double	NewSpaceAllocationThroughputInBytesPerMillisecond () const

double	OldGenerationAllocationThroughputInBytesPerMillisecond () const

double	EmbedderAllocationThroughputInBytesPerMillisecond () const

double	AllocationThroughputInBytesPerMillisecond () const

double	AverageSurvivalRatio () const

bool	SurvivalEventsRecorded () const

void	ResetSurvivalEvents ()

void	NotifyIncrementalMarkingStart ()

void	NotifyMarkingStart ()

uint16_t	CodeFlushingIncrease () const

double	AverageMarkCompactMutatorUtilization () const

double	CurrentMarkCompactMutatorUtilization () const

V8_INLINE void	AddScopeSample (Scope::ScopeId id, base::TimeDelta duration)

void	RecordGCPhasesHistograms (RecordGCPhasesInfo::Mode mode)

void	RecordGCSizeCounters () const

void	RecordEmbedderMarkingSpeed (size_t bytes, base::TimeDelta duration)

std::optional< base::TimeDelta >	AverageTimeToIncrementalMarkingTask () const

void	RecordTimeToIncrementalMarkingTask (base::TimeDelta time_to_task)

GarbageCollector	GetCurrentCollector () const

void	UpdateCurrentEventPriority (Priority priority)

Static Public Attributes
static constexpr base::TimeDelta	kThroughputTimeFrame

static constexpr double	kConservativeSpeedInBytesPerMillisecond = 128 * KB

Private Types
using	Priority = v8::Isolate::Priority

using	BytesAndDurationBuffer = ::heap::base::BytesAndDurationBuffer

using	SmoothedBytesAndDuration = ::heap::base::SmoothedBytesAndDuration

Private Member Functions
void	StopCycle (GarbageCollector collector)

V8_INLINE double	current_scope (Scope::ScopeId id) const

V8_INLINE constexpr const IncrementalInfos &	incremental_scope (Scope::ScopeId id) const

void	ResetForTesting ()

void	RecordIncrementalMarkingSpeed (size_t bytes, base::TimeDelta duration)

void	RecordMutatorUtilization (base::TimeTicks mark_compactor_end_time, base::TimeDelta mark_compactor_duration)

void	RecordGCSumCounters ()

void	PrintNVP () const

void	Print () const

void	PRINTF_FORMAT (2, 3) Output(const char *format

void	FetchBackgroundCounters ()

void	ReportFullCycleToRecorder ()

void	ReportIncrementalMarkingStepToRecorder (double v8_duration)

void	ReportIncrementalSweepingStepToRecorder (double v8_duration)

void	ReportYoungCycleToRecorder ()

	FRIEND_TEST (GCTracerTest, AllocationThroughput)

	FRIEND_TEST (GCTracerTest, BackgroundScavengerScope)

	FRIEND_TEST (GCTracerTest, BackgroundMinorMSScope)

	FRIEND_TEST (GCTracerTest, BackgroundMajorMCScope)

	FRIEND_TEST (GCTracerTest, CyclePriorities)

	FRIEND_TEST (GCTracerTest, EmbedderAllocationThroughput)

	FRIEND_TEST (GCTracerTest, MultithreadedBackgroundScope)

	FRIEND_TEST (GCTracerTest, NewSpaceAllocationThroughput)

	FRIEND_TEST (GCTracerTest, PerGenerationAllocationThroughput)

	FRIEND_TEST (GCTracerTest, PerGenerationAllocationThroughputWithProvidedTime)

	FRIEND_TEST (GCTracerTest, RegularScope)

	FRIEND_TEST (GCTracerTest, IncrementalMarkingDetails)

	FRIEND_TEST (GCTracerTest, IncrementalScope)

	FRIEND_TEST (GCTracerTest, IncrementalMarkingSpeed)

	FRIEND_TEST (GCTracerTest, MutatorUtilization)

	FRIEND_TEST (GCTracerTest, RecordMarkCompactHistograms)

	FRIEND_TEST (GCTracerTest, RecordScavengerHistograms)

Private Attributes
void	const

Heap *	heap_

Event	current_

Event	previous_

std::optional< base::TimeTicks >	start_of_observable_pause_

CollectionEpoch	epoch_young_ = 0

CollectionEpoch	epoch_full_ = 0

double	recorded_major_incremental_marking_speed_ = 0.0

std::optional< base::TimeDelta >	average_time_to_incremental_marking_task_

std::optional< base::TimeTicks >	last_marking_start_time_for_code_flushing_

uint16_t	code_flushing_increase_s_ = 0

IncrementalInfos	incremental_scopes_ [Scope::NUMBER_OF_INCREMENTAL_SCOPES]

base::TimeTicks	allocation_time_

size_t	new_space_allocation_counter_bytes_ = 0

size_t	old_generation_allocation_counter_bytes_ = 0

size_t	embedder_allocation_counter_bytes_ = 0

std::optional< double >	combined_mark_compact_speed_cache_

double	average_mutator_duration_ = 0.0

double	average_mark_compact_duration_ = 0.0

double	current_mark_compact_mutator_utilization_ = 1.0

base::TimeTicks	previous_mark_compact_end_time_

base::TimeDelta	total_duration_since_last_mark_compact_

BytesAndDurationBuffer	recorded_compactions_

BytesAndDurationBuffer	recorded_incremental_mark_compacts_

BytesAndDurationBuffer	recorded_mark_compacts_

BytesAndDurationBuffer	recorded_major_totals_

BytesAndDurationBuffer	recorded_embedder_marking_

SmoothedBytesAndDuration	new_generation_allocations_

SmoothedBytesAndDuration	old_generation_allocations_

SmoothedBytesAndDuration	embedder_generation_allocations_

BytesAndDurationBuffer	recorded_minor_gc_per_thread_

BytesAndDurationBuffer	recorded_minor_gc_atomic_pause_

base::RingBuffer< double >	recorded_survival_ratios_

bool	notified_full_sweeping_completed_ = false

bool	notified_full_cppgc_completed_ = false

bool	full_cppgc_completed_during_minor_gc_ = false

bool	notified_young_sweeping_completed_ = false

bool	notified_young_cppgc_completed_ = false

bool	notified_young_cppgc_running_ = false

bool	young_gc_while_full_gc_ = false

v8::metrics::GarbageCollectionFullMainThreadBatchedIncrementalMark	incremental_mark_batched_events_

v8::metrics::GarbageCollectionFullMainThreadBatchedIncrementalSweep	incremental_sweep_batched_events_

base::Mutex	background_scopes_mutex_

base::TimeDelta	background_scopes_ [Scope::NUMBER_OF_SCOPES]

Static Private Attributes
static constexpr base::TimeDelta	kSmoothedAllocationSpeedDecayRate

Detailed Description

Definition at line 107 of file gc-tracer.h.

Member Typedef Documentation

◆ BytesAndDurationBuffer

using v8::internal::GCTracer::BytesAndDurationBuffer = ::heap::base::BytesAndDurationBuffer

private

Definition at line 463 of file gc-tracer.h.

◆ Priority

using v8::internal::GCTracer::Priority = v8::Isolate::Priority

private

Definition at line 108 of file gc-tracer.h.

◆ SmoothedBytesAndDuration

using v8::internal::GCTracer::SmoothedBytesAndDuration = ::heap::base::SmoothedBytesAndDuration

private

Definition at line 464 of file gc-tracer.h.

Member Enumeration Documentation

◆ MarkingType

enum class v8::internal::GCTracer::MarkingType

strong

Enumerator
kAtomic
kIncremental

Definition at line 301 of file gc-tracer.h.

Constructor & Destructor Documentation

◆ GCTracer() [1/2]

v8::internal::GCTracer::GCTracer	(	Heap *	heap,
		base::TimeTicks	startup_time,
		GarbageCollectionReason	initial_gc_reason = GarbageCollectionReason::kUnknown )

Definition at line 174 of file gc-tracer.cc.

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◆ GCTracer() [2/2]

v8::internal::GCTracer::GCTracer ( const GCTracer & )

delete

Member Function Documentation

◆ AddCompactionEvent()

void v8::internal::GCTracer::AddCompactionEvent	(	double	duration,
		size_t	live_bytes_compacted )

Definition at line 727 of file gc-tracer.cc.

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◆ AddIncrementalMarkingStep()

void v8::internal::GCTracer::AddIncrementalMarkingStep	(	double	duration,
		size_t	bytes )

Definition at line 737 of file gc-tracer.cc.

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◆ AddIncrementalSweepingStep()

void v8::internal::GCTracer::AddIncrementalSweepingStep ( double duration )

Definition at line 746 of file gc-tracer.cc.

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◆ AddScopeSample()

void v8::internal::GCTracer::AddScopeSample	(	Scope::ScopeId	id,
		base::TimeDelta	duration )

Definition at line 122 of file gc-tracer-inl.h.

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◆ AddSurvivalRatio()

void v8::internal::GCTracer::AddSurvivalRatio ( double survival_ratio )

Definition at line 733 of file gc-tracer.cc.

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◆ AllocationThroughputInBytesPerMillisecond()

double v8::internal::GCTracer::AllocationThroughputInBytesPerMillisecond ( ) const

Definition at line 1405 of file gc-tracer.cc.

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◆ AverageMarkCompactMutatorUtilization()

double v8::internal::GCTracer::AverageMarkCompactMutatorUtilization ( ) const

Definition at line 1312 of file gc-tracer.cc.

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◆ AverageSurvivalRatio()

double v8::internal::GCTracer::AverageSurvivalRatio ( ) const

Definition at line 1410 of file gc-tracer.cc.

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◆ AverageTimeToIncrementalMarkingTask()

std::optional< base::TimeDelta > v8::internal::GCTracer::AverageTimeToIncrementalMarkingTask ( ) const

Definition at line 1275 of file gc-tracer.cc.

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◆ CodeFlushingIncrease()

uint16_t v8::internal::GCTracer::CodeFlushingIncrease ( ) const

Definition at line 723 of file gc-tracer.cc.

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◆ CompactionSpeedInBytesPerMillisecond()

std::optional< double > v8::internal::GCTracer::CompactionSpeedInBytesPerMillisecond ( ) const

Definition at line 1349 of file gc-tracer.cc.

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◆ current_scope()

double v8::internal::GCTracer::current_scope ( Scope::ScopeId id ) const

private

Definition at line 112 of file gc-tracer-inl.h.

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◆ CurrentEpoch()

CollectionEpoch v8::internal::GCTracer::CurrentEpoch ( Scope::ScopeId id ) const

Definition at line 108 of file gc-tracer-inl.h.

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◆ CurrentMarkCompactMutatorUtilization()

double v8::internal::GCTracer::CurrentMarkCompactMutatorUtilization ( ) const

Definition at line 1319 of file gc-tracer.cc.

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◆ EmbedderAllocationThroughputInBytesPerMillisecond()

double v8::internal::GCTracer::EmbedderAllocationThroughputInBytesPerMillisecond ( ) const

Definition at line 1401 of file gc-tracer.cc.

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◆ EmbedderSpeedInBytesPerMillisecond()

std::optional< double > v8::internal::GCTracer::EmbedderSpeedInBytesPerMillisecond ( ) const

Definition at line 1334 of file gc-tracer.cc.

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◆ FetchBackgroundCounters()

void v8::internal::GCTracer::FetchBackgroundCounters ( )

private

Definition at line 1427 of file gc-tracer.cc.

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◆ FinalIncrementalMarkCompactSpeedInBytesPerMillisecond()

std::optional< double > v8::internal::GCTracer::FinalIncrementalMarkCompactSpeedInBytesPerMillisecond ( ) const

Definition at line 1358 of file gc-tracer.cc.

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◆ FRIEND_TEST() [1/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		AllocationThroughput	)

private

◆ FRIEND_TEST() [2/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		BackgroundMajorMCScope	)

private

◆ FRIEND_TEST() [3/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		BackgroundMinorMSScope	)

private

◆ FRIEND_TEST() [4/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		BackgroundScavengerScope	)

private

◆ FRIEND_TEST() [5/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		CyclePriorities	)

private

◆ FRIEND_TEST() [6/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		EmbedderAllocationThroughput	)

private

◆ FRIEND_TEST() [7/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		IncrementalMarkingDetails	)

private

◆ FRIEND_TEST() [8/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		IncrementalMarkingSpeed	)

private

◆ FRIEND_TEST() [9/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		IncrementalScope	)

private

◆ FRIEND_TEST() [10/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		MultithreadedBackgroundScope	)

private

◆ FRIEND_TEST() [11/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		MutatorUtilization	)

private

◆ FRIEND_TEST() [12/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		NewSpaceAllocationThroughput	)

private

◆ FRIEND_TEST() [13/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		PerGenerationAllocationThroughput	)

private

◆ FRIEND_TEST() [14/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		PerGenerationAllocationThroughputWithProvidedTime	)

private

◆ FRIEND_TEST() [15/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		RecordMarkCompactHistograms	)

private

◆ FRIEND_TEST() [16/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		RecordScavengerHistograms	)

private

◆ FRIEND_TEST() [17/17]

v8::internal::GCTracer::FRIEND_TEST	(	GCTracerTest	,
		RegularScope	)

private

◆ GetCurrentCollector()

GarbageCollector v8::internal::GCTracer::GetCurrentCollector ( ) const

Definition at line 1936 of file gc-tracer.cc.

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◆ incremental_scope()

const GCTracer::IncrementalInfos & v8::internal::GCTracer::incremental_scope ( Scope::ScopeId id ) const

constexprprivate

Definition at line 117 of file gc-tracer-inl.h.

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◆ IncrementalMarkingSpeedInBytesPerMillisecond()

double v8::internal::GCTracer::IncrementalMarkingSpeedInBytesPerMillisecond ( ) const

Definition at line 1323 of file gc-tracer.cc.

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◆ MarkCompactSpeedInBytesPerMillisecond()

std::optional< double > v8::internal::GCTracer::MarkCompactSpeedInBytesPerMillisecond ( ) const

Definition at line 1353 of file gc-tracer.cc.

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◆ NewSpaceAllocationThroughputInBytesPerMillisecond()

double v8::internal::GCTracer::NewSpaceAllocationThroughputInBytesPerMillisecond ( ) const

Definition at line 1392 of file gc-tracer.cc.

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◆ NotifyFullCppGCCompleted()

void v8::internal::GCTracer::NotifyFullCppGCCompleted ( )

Definition at line 595 of file gc-tracer.cc.

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◆ NotifyFullSweepingCompletedAndStopCycleIfFinished()

void v8::internal::GCTracer::NotifyFullSweepingCompletedAndStopCycleIfFinished ( )

Definition at line 537 of file gc-tracer.cc.

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◆ NotifyIncrementalMarkingStart()

void v8::internal::GCTracer::NotifyIncrementalMarkingStart ( )

Definition at line 1423 of file gc-tracer.cc.

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◆ NotifyMarkingStart()

void v8::internal::GCTracer::NotifyMarkingStart ( )

Definition at line 687 of file gc-tracer.cc.

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◆ NotifyYoungCppGCCompleted()

void v8::internal::GCTracer::NotifyYoungCppGCCompleted ( )

Definition at line 615 of file gc-tracer.cc.

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◆ NotifyYoungCppGCRunning()

void v8::internal::GCTracer::NotifyYoungCppGCRunning ( )

Definition at line 629 of file gc-tracer.cc.

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◆ NotifyYoungSweepingCompleted()

void v8::internal::GCTracer::NotifyYoungSweepingCompleted ( )

Definition at line 571 of file gc-tracer.cc.

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◆ NotifyYoungSweepingCompletedAndStopCycleIfFinished()

void v8::internal::GCTracer::NotifyYoungSweepingCompletedAndStopCycleIfFinished ( )

Definition at line 589 of file gc-tracer.cc.

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◆ OldGenerationAllocationThroughputInBytesPerMillisecond()

double v8::internal::GCTracer::OldGenerationAllocationThroughputInBytesPerMillisecond ( ) const

Definition at line 1396 of file gc-tracer.cc.

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◆ OldGenerationSpeedInBytesPerMillisecond()

std::optional< double > v8::internal::GCTracer::OldGenerationSpeedInBytesPerMillisecond ( )

Definition at line 1362 of file gc-tracer.cc.

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◆ operator=()

GCTracer & v8::internal::GCTracer::operator= ( const GCTracer & )

delete

◆ Print()

void v8::internal::GCTracer::Print ( ) const

private

Definition at line 769 of file gc-tracer.cc.

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◆ PRINTF_FORMAT()

void v8::internal::GCTracer::PRINTF_FORMAT	(	2	,
		3	) const

private

◆ PrintNVP()

void v8::internal::GCTracer::PrintNVP ( ) const

private

Definition at line 821 of file gc-tracer.cc.

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◆ RecordEmbedderMarkingSpeed()

void v8::internal::GCTracer::RecordEmbedderMarkingSpeed	(	size_t	bytes,
		base::TimeDelta	duration )

Definition at line 1280 of file gc-tracer.cc.

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◆ RecordGCPhasesHistograms()

void v8::internal::GCTracer::RecordGCPhasesHistograms ( RecordGCPhasesInfo::Mode mode )

Definition at line 1444 of file gc-tracer.cc.

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◆ RecordGCSizeCounters()

void v8::internal::GCTracer::RecordGCSizeCounters ( ) const

Definition at line 1522 of file gc-tracer.cc.

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◆ RecordGCSumCounters()

void v8::internal::GCTracer::RecordGCSumCounters ( )

private

Definition at line 1475 of file gc-tracer.cc.

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◆ RecordIncrementalMarkingSpeed()

void v8::internal::GCTracer::RecordIncrementalMarkingSpeed	(	size_t	bytes,
		base::TimeDelta	duration )

private

Definition at line 1251 of file gc-tracer.cc.

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◆ RecordMutatorUtilization()

void v8::internal::GCTracer::RecordMutatorUtilization	(	base::TimeTicks	mark_compactor_end_time,
		base::TimeDelta	mark_compactor_duration )

private

Definition at line 1285 of file gc-tracer.cc.

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◆ RecordTimeToIncrementalMarkingTask()

void v8::internal::GCTracer::RecordTimeToIncrementalMarkingTask ( base::TimeDelta time_to_task )

Definition at line 1265 of file gc-tracer.cc.

◆ ReportFullCycleToRecorder()

void v8::internal::GCTracer::ReportFullCycleToRecorder ( )

private

Definition at line 1607 of file gc-tracer.cc.

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◆ ReportIncrementalMarkingStepToRecorder()

void v8::internal::GCTracer::ReportIncrementalMarkingStepToRecorder ( double v8_duration )

private

Definition at line 1809 of file gc-tracer.cc.

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◆ ReportIncrementalSweepingStepToRecorder()

void v8::internal::GCTracer::ReportIncrementalSweepingStepToRecorder ( double v8_duration )

private

Definition at line 1838 of file gc-tracer.cc.

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◆ ReportYoungCycleToRecorder()

void v8::internal::GCTracer::ReportYoungCycleToRecorder ( )

private

Definition at line 1854 of file gc-tracer.cc.

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◆ ResetForTesting()

void v8::internal::GCTracer::ResetForTesting ( )

private

Definition at line 199 of file gc-tracer.cc.

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◆ ResetSurvivalEvents()

void v8::internal::GCTracer::ResetSurvivalEvents ( )

Definition at line 1421 of file gc-tracer.cc.

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◆ SampleAllocation()

void v8::internal::GCTracer::SampleAllocation	(	base::TimeTicks	current,
		size_t	new_space_counter_bytes,
		size_t	old_generation_counter_bytes,
		size_t	embedder_counter_bytes )

Definition at line 634 of file gc-tracer.cc.

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◆ SampleConcurrencyEsimate()

void v8::internal::GCTracer::SampleConcurrencyEsimate ( size_t concurrency )

Definition at line 680 of file gc-tracer.cc.

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◆ StartAtomicPause()

void v8::internal::GCTracer::StartAtomicPause ( )

Definition at line 302 of file gc-tracer.cc.

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◆ StartCycle()

void v8::internal::GCTracer::StartCycle	(	GarbageCollector	collector,
		GarbageCollectionReason	gc_reason,
		const char *	collector_reason,
		MarkingType	marking )

Definition at line 228 of file gc-tracer.cc.

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◆ StartInSafepoint()

void v8::internal::GCTracer::StartInSafepoint ( base::TimeTicks time )

Definition at line 307 of file gc-tracer.cc.

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◆ StartObservablePause()

void v8::internal::GCTracer::StartObservablePause ( base::TimeTicks time )

Definition at line 206 of file gc-tracer.cc.

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◆ StopAtomicPause()

void v8::internal::GCTracer::StopAtomicPause ( )

Definition at line 442 of file gc-tracer.cc.

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◆ StopCycle()

void v8::internal::GCTracer::StopCycle ( GarbageCollector collector )

private

Definition at line 464 of file gc-tracer.cc.

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◆ StopFullCycleIfFinished()

void v8::internal::GCTracer::StopFullCycleIfFinished ( )

Definition at line 506 of file gc-tracer.cc.

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◆ StopInSafepoint()

void v8::internal::GCTracer::StopInSafepoint ( base::TimeTicks time )

Definition at line 322 of file gc-tracer.cc.

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◆ StopObservablePause()

void v8::internal::GCTracer::StopObservablePause	(	GarbageCollector	collector,
		base::TimeTicks	time )

Definition at line 338 of file gc-tracer.cc.

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◆ StopYoungCycleIfFinished()

void v8::internal::GCTracer::StopYoungCycleIfFinished ( )

Definition at line 516 of file gc-tracer.cc.

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◆ SurvivalEventsRecorded()

bool v8::internal::GCTracer::SurvivalEventsRecorded ( ) const

Definition at line 1417 of file gc-tracer.cc.

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◆ UpdateCurrentEvent()

void v8::internal::GCTracer::UpdateCurrentEvent	(	GarbageCollectionReason	gc_reason,
		const char *	collector_reason )

Definition at line 211 of file gc-tracer.cc.

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◆ UpdateCurrentEventPriority()

void v8::internal::GCTracer::UpdateCurrentEventPriority ( GCTracer::Priority priority )

Definition at line 1951 of file gc-tracer.cc.

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◆ UpdateMemoryBalancerGCSpeed()

void v8::internal::GCTracer::UpdateMemoryBalancerGCSpeed ( )

Definition at line 416 of file gc-tracer.cc.

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◆ YoungGenerationSpeedInBytesPerMillisecond()

std::optional< double > v8::internal::GCTracer::YoungGenerationSpeedInBytesPerMillisecond ( YoungGenerationSpeedMode mode ) const

Definition at line 1338 of file gc-tracer.cc.

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Member Data Documentation

◆ allocation_time_

base::TimeTicks v8::internal::GCTracer::allocation_time_

private

Definition at line 542 of file gc-tracer.h.

◆ average_mark_compact_duration_

double v8::internal::GCTracer::average_mark_compact_duration_ = 0.0

private

Definition at line 551 of file gc-tracer.h.

◆ average_mutator_duration_

double v8::internal::GCTracer::average_mutator_duration_ = 0.0

private

Definition at line 550 of file gc-tracer.h.

◆ average_time_to_incremental_marking_task_

std::optional<base::TimeDelta> v8::internal::GCTracer::average_time_to_incremental_marking_task_

private

Definition at line 530 of file gc-tracer.h.

◆ background_scopes_

base::TimeDelta v8::internal::GCTracer::background_scopes_[Scope::NUMBER_OF_SCOPES]

private

Definition at line 606 of file gc-tracer.h.

◆ background_scopes_mutex_

base::Mutex v8::internal::GCTracer::background_scopes_mutex_

mutableprivate

Definition at line 605 of file gc-tracer.h.

◆ code_flushing_increase_s_

uint16_t v8::internal::GCTracer::code_flushing_increase_s_ = 0

private

Definition at line 535 of file gc-tracer.h.

◆ combined_mark_compact_speed_cache_

std::optional<double> v8::internal::GCTracer::combined_mark_compact_speed_cache_

private

Definition at line 547 of file gc-tracer.h.

◆ const

void v8::internal::GCTracer::const

private

Definition at line 501 of file gc-tracer.h.

◆ current_

Event v8::internal::GCTracer::current_

private

Definition at line 515 of file gc-tracer.h.

◆ current_mark_compact_mutator_utilization_

double v8::internal::GCTracer::current_mark_compact_mutator_utilization_ = 1.0

private

Definition at line 552 of file gc-tracer.h.

◆ embedder_allocation_counter_bytes_

size_t v8::internal::GCTracer::embedder_allocation_counter_bytes_ = 0

private

Definition at line 545 of file gc-tracer.h.

◆ embedder_generation_allocations_

SmoothedBytesAndDuration v8::internal::GCTracer::embedder_generation_allocations_

private

Initial value:

{

kSmoothedAllocationSpeedDecayRate}

v8::internal::GCTracer::kSmoothedAllocationSpeedDecayRate

static constexpr base::TimeDelta kSmoothedAllocationSpeedDecayRate

Definition gc-tracer.h:565

Definition at line 572 of file gc-tracer.h.

◆ epoch_full_

CollectionEpoch v8::internal::GCTracer::epoch_full_ = 0

private

Definition at line 525 of file gc-tracer.h.

◆ epoch_young_

CollectionEpoch v8::internal::GCTracer::epoch_young_ = 0

private

Definition at line 524 of file gc-tracer.h.

◆ full_cppgc_completed_during_minor_gc_

bool v8::internal::GCTracer::full_cppgc_completed_during_minor_gc_ = false

private

Definition at line 585 of file gc-tracer.h.

◆ heap_

Heap* v8::internal::GCTracer::heap_

private

Definition at line 511 of file gc-tracer.h.

◆ incremental_mark_batched_events_

v8::metrics::GarbageCollectionFullMainThreadBatchedIncrementalMark v8::internal::GCTracer::incremental_mark_batched_events_

private

Definition at line 601 of file gc-tracer.h.

◆ incremental_scopes_

IncrementalInfos v8::internal::GCTracer::incremental_scopes_[Scope::NUMBER_OF_INCREMENTAL_SCOPES]

private

Definition at line 539 of file gc-tracer.h.

◆ incremental_sweep_batched_events_

v8::metrics::GarbageCollectionFullMainThreadBatchedIncrementalSweep v8::internal::GCTracer::incremental_sweep_batched_events_

private

Definition at line 603 of file gc-tracer.h.

◆ kConservativeSpeedInBytesPerMillisecond

double v8::internal::GCTracer::kConservativeSpeedInBytesPerMillisecond = 128 * KB

staticconstexpr

Definition at line 278 of file gc-tracer.h.

◆ kSmoothedAllocationSpeedDecayRate

base::TimeDelta v8::internal::GCTracer::kSmoothedAllocationSpeedDecayRate

staticconstexprprivate

Initial value:

=

v8::base::TimeDelta::FromMilliseconds(100)

v8::base::TimeDelta::FromMilliseconds

static constexpr TimeDelta FromMilliseconds(int64_t milliseconds)

Definition time.h:84

Definition at line 565 of file gc-tracer.h.

◆ kThroughputTimeFrame

base::TimeDelta v8::internal::GCTracer::kThroughputTimeFrame

staticconstexpr

Initial value:

=

base::TimeDelta::FromSeconds(5)

v8::base::TimeDelta::FromSeconds

static constexpr TimeDelta FromSeconds(int64_t seconds)

Definition time.h:81

Definition at line 276 of file gc-tracer.h.

◆ last_marking_start_time_for_code_flushing_

std::optional<base::TimeTicks> v8::internal::GCTracer::last_marking_start_time_for_code_flushing_

private

Definition at line 534 of file gc-tracer.h.

◆ new_generation_allocations_

SmoothedBytesAndDuration v8::internal::GCTracer::new_generation_allocations_

private

Initial value:

{

kSmoothedAllocationSpeedDecayRate}

Definition at line 568 of file gc-tracer.h.

◆ new_space_allocation_counter_bytes_

size_t v8::internal::GCTracer::new_space_allocation_counter_bytes_ = 0

private

Definition at line 543 of file gc-tracer.h.

◆ notified_full_cppgc_completed_

bool v8::internal::GCTracer::notified_full_cppgc_completed_ = false

private

Definition at line 584 of file gc-tracer.h.

◆ notified_full_sweeping_completed_

bool v8::internal::GCTracer::notified_full_sweeping_completed_ = false

private

Definition at line 583 of file gc-tracer.h.

◆ notified_young_cppgc_completed_

bool v8::internal::GCTracer::notified_young_cppgc_completed_ = false

private

Definition at line 590 of file gc-tracer.h.

◆ notified_young_cppgc_running_

bool v8::internal::GCTracer::notified_young_cppgc_running_ = false

private

Definition at line 593 of file gc-tracer.h.

◆ notified_young_sweeping_completed_

bool v8::internal::GCTracer::notified_young_sweeping_completed_ = false

private

Definition at line 587 of file gc-tracer.h.

◆ old_generation_allocation_counter_bytes_

size_t v8::internal::GCTracer::old_generation_allocation_counter_bytes_ = 0

private

Definition at line 544 of file gc-tracer.h.

◆ old_generation_allocations_

SmoothedBytesAndDuration v8::internal::GCTracer::old_generation_allocations_

private

Initial value:

{

kSmoothedAllocationSpeedDecayRate}

Definition at line 570 of file gc-tracer.h.

◆ previous_

Event v8::internal::GCTracer::previous_

private

Definition at line 518 of file gc-tracer.h.

◆ previous_mark_compact_end_time_

base::TimeTicks v8::internal::GCTracer::previous_mark_compact_end_time_

private

Definition at line 556 of file gc-tracer.h.

◆ recorded_compactions_

BytesAndDurationBuffer v8::internal::GCTracer::recorded_compactions_

private

Definition at line 559 of file gc-tracer.h.

◆ recorded_embedder_marking_

BytesAndDurationBuffer v8::internal::GCTracer::recorded_embedder_marking_

private

Definition at line 563 of file gc-tracer.h.

◆ recorded_incremental_mark_compacts_

BytesAndDurationBuffer v8::internal::GCTracer::recorded_incremental_mark_compacts_

private

Definition at line 560 of file gc-tracer.h.

◆ recorded_major_incremental_marking_speed_

double v8::internal::GCTracer::recorded_major_incremental_marking_speed_ = 0.0

private

Definition at line 528 of file gc-tracer.h.

◆ recorded_major_totals_

BytesAndDurationBuffer v8::internal::GCTracer::recorded_major_totals_

private

Definition at line 562 of file gc-tracer.h.

◆ recorded_mark_compacts_

BytesAndDurationBuffer v8::internal::GCTracer::recorded_mark_compacts_

private

Definition at line 561 of file gc-tracer.h.

◆ recorded_minor_gc_atomic_pause_

BytesAndDurationBuffer v8::internal::GCTracer::recorded_minor_gc_atomic_pause_

private

Definition at line 578 of file gc-tracer.h.

◆ recorded_minor_gc_per_thread_

BytesAndDurationBuffer v8::internal::GCTracer::recorded_minor_gc_per_thread_

private

Definition at line 577 of file gc-tracer.h.

◆ recorded_survival_ratios_

base::RingBuffer<double> v8::internal::GCTracer::recorded_survival_ratios_

private

Definition at line 579 of file gc-tracer.h.

◆ start_of_observable_pause_

std::optional<base::TimeTicks> v8::internal::GCTracer::start_of_observable_pause_

private

Definition at line 521 of file gc-tracer.h.

◆ total_duration_since_last_mark_compact_

base::TimeDelta v8::internal::GCTracer::total_duration_since_last_mark_compact_

private

Definition at line 557 of file gc-tracer.h.

◆ young_gc_while_full_gc_

bool v8::internal::GCTracer::young_gc_while_full_gc_ = false

private

Definition at line 598 of file gc-tracer.h.

The documentation for this class was generated from the following files:

src/heap/gc-tracer.h
src/heap/gc-tracer-inl.h
src/heap/gc-tracer.cc

Classes

Public Types

Public Member Functions

Static Public Attributes

Private Types

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Member Typedef Documentation

◆ BytesAndDurationBuffer

◆ Priority

◆ SmoothedBytesAndDuration

Member Enumeration Documentation

◆ MarkingType

Constructor & Destructor Documentation

◆ GCTracer() [1/2]

◆ GCTracer() [2/2]

Member Function Documentation

◆ AddCompactionEvent()

◆ AddIncrementalMarkingStep()

◆ AddIncrementalSweepingStep()

◆ AddScopeSample()

◆ AddSurvivalRatio()

◆ AllocationThroughputInBytesPerMillisecond()

◆ AverageMarkCompactMutatorUtilization()

◆ AverageSurvivalRatio()

◆ AverageTimeToIncrementalMarkingTask()

◆ CodeFlushingIncrease()

◆ CompactionSpeedInBytesPerMillisecond()

◆ current_scope()

◆ CurrentEpoch()

◆ CurrentMarkCompactMutatorUtilization()

◆ EmbedderAllocationThroughputInBytesPerMillisecond()

◆ EmbedderSpeedInBytesPerMillisecond()

◆ FetchBackgroundCounters()

◆ FinalIncrementalMarkCompactSpeedInBytesPerMillisecond()

◆ FRIEND_TEST() [1/17]

◆ FRIEND_TEST() [2/17]

◆ FRIEND_TEST() [3/17]

◆ FRIEND_TEST() [4/17]

◆ FRIEND_TEST() [5/17]

◆ FRIEND_TEST() [6/17]

◆ FRIEND_TEST() [7/17]

◆ FRIEND_TEST() [8/17]

◆ FRIEND_TEST() [9/17]

◆ FRIEND_TEST() [10/17]

◆ FRIEND_TEST() [11/17]

◆ FRIEND_TEST() [12/17]

◆ FRIEND_TEST() [13/17]

◆ FRIEND_TEST() [14/17]

◆ FRIEND_TEST() [15/17]

◆ FRIEND_TEST() [16/17]

◆ FRIEND_TEST() [17/17]

◆ GetCurrentCollector()

◆ incremental_scope()

◆ IncrementalMarkingSpeedInBytesPerMillisecond()

◆ MarkCompactSpeedInBytesPerMillisecond()

◆ NewSpaceAllocationThroughputInBytesPerMillisecond()

◆ NotifyFullCppGCCompleted()

◆ NotifyFullSweepingCompletedAndStopCycleIfFinished()

◆ NotifyIncrementalMarkingStart()

◆ NotifyMarkingStart()

◆ NotifyYoungCppGCCompleted()

◆ NotifyYoungCppGCRunning()

◆ NotifyYoungSweepingCompleted()

◆ NotifyYoungSweepingCompletedAndStopCycleIfFinished()

◆ OldGenerationAllocationThroughputInBytesPerMillisecond()

◆ OldGenerationSpeedInBytesPerMillisecond()

◆ operator=()

◆ Print()

◆ PRINTF_FORMAT()

◆ PrintNVP()

◆ RecordEmbedderMarkingSpeed()

◆ RecordGCPhasesHistograms()

◆ RecordGCSizeCounters()

◆ RecordGCSumCounters()

◆ RecordIncrementalMarkingSpeed()

◆ RecordMutatorUtilization()

◆ RecordTimeToIncrementalMarkingTask()