#include <cpu-profiler.h>

Inheritance diagram for v8::internal::SamplingEventsProcessor:

Collaboration diagram for v8::internal::SamplingEventsProcessor:

Public Member Functions
	SamplingEventsProcessor (Isolate isolate, Symbolizer symbolizer, ProfilerCodeObserver code_observer, CpuProfilesCollection profiles, base::TimeDelta period, bool use_precise_sampling)

	~SamplingEventsProcessor () override

void *	operator new (size_t size)

void	operator delete (void *ptr)

void	Run () override

void	SetSamplingInterval (base::TimeDelta period) override

TickSample *	StartTickSample ()

void	FinishTickSample ()

sampler::Sampler *	sampler ()

base::TimeDelta	period () const

Public Member Functions inherited from v8::internal::ProfilerEventsProcessor
	~ProfilerEventsProcessor () override

void	CodeEventHandler (const CodeEventsContainer &evt_rec) override

void	StopSynchronously ()

bool	running ()

void	Enqueue (const CodeEventsContainer &event)

void	AddCurrentStack (bool update_stats=false, const std::optional< uint64_t > trace_id=std::nullopt)

void	AddDeoptStack (Address from, int fp_to_sp_delta)

void	AddSample (TickSample sample)

Public Member Functions inherited from v8::base::Thread
	Thread (const Options &options)

	Thread (const Thread &)=delete

Thread &	operator= (const Thread &)=delete

virtual	~Thread ()

V8_WARN_UNUSED_RESULT bool	Start ()

bool	StartSynchronously ()

void	Join ()

const char *	name () const

PlatformData *	data ()

Priority	priority () const

void	NotifyStartedAndRun ()

Public Member Functions inherited from v8::internal::CodeEventObserver
virtual	~CodeEventObserver ()=default

Private Member Functions
SampleProcessingResult	ProcessOneSample () override

void	SymbolizeAndAddToProfiles (const TickSampleEventRecord *record)

Private Attributes
SamplingCircularQueue< TickSampleEventRecord, kTickSampleQueueLength >	ticks_buffer_

std::unique_ptr< sampler::Sampler >	sampler_

base::TimeDelta	period_

const bool	use_precise_sampling_

Static Private Attributes
static const size_t	kTickSampleBufferSize = 512 * KB

static const size_t	kTickSampleQueueLength

Additional Inherited Members
Public Types inherited from v8::base::Thread
enum class	Priority { kBestEffort , kUserVisible , kUserBlocking , kDefault }

using	LocalStorageKey = int32_t

Static Public Member Functions inherited from v8::base::Thread
static LocalStorageKey	CreateThreadLocalKey ()

static void	DeleteThreadLocalKey (LocalStorageKey key)

static void *	GetThreadLocal (LocalStorageKey key)

static void	SetThreadLocal (LocalStorageKey key, void *value)

static bool	HasThreadLocal (LocalStorageKey key)

static void *	GetExistingThreadLocal (LocalStorageKey key)

Static Public Attributes inherited from v8::base::Thread
static const int	kMaxThreadNameLength = 16

Protected Types inherited from v8::internal::ProfilerEventsProcessor
enum	SampleProcessingResult { OneSampleProcessed , FoundSampleForNextCodeEvent , NoSamplesInQueue }

Protected Member Functions inherited from v8::internal::ProfilerEventsProcessor
	ProfilerEventsProcessor (Isolate isolate, Symbolizer symbolizer, ProfilerCodeObserver code_observer, CpuProfilesCollection profiles)

bool	ProcessCodeEvent ()

Protected Attributes inherited from v8::internal::ProfilerEventsProcessor
Symbolizer *	symbolizer_

ProfilerCodeObserver *	code_observer_

CpuProfilesCollection *	profiles_

std::atomic_bool	running_ {true}

base::ConditionVariable	running_cond_

base::Mutex	running_mutex_

LockedQueue< CodeEventsContainer >	events_buffer_

LockedQueue< TickSampleEventRecord >	ticks_from_vm_buffer_

std::atomic< unsigned >	last_code_event_id_

unsigned	last_processed_code_event_id_

Isolate *	isolate_

Detailed Description

Definition at line 219 of file cpu-profiler.h.

Constructor & Destructor Documentation

◆ SamplingEventsProcessor()

v8::internal::SamplingEventsProcessor::SamplingEventsProcessor	(	Isolate *	isolate,
		Symbolizer *	symbolizer,
		ProfilerCodeObserver *	code_observer,
		CpuProfilesCollection *	profiles,
		base::TimeDelta	period,
		bool	use_precise_sampling )

Definition at line 125 of file cpu-profiler.cc.

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◆ ~SamplingEventsProcessor()

v8::internal::SamplingEventsProcessor::~SamplingEventsProcessor ( )

override

Definition at line 140 of file cpu-profiler.cc.

Member Function Documentation

◆ FinishTickSample()

void v8::internal::SamplingEventsProcessor::FinishTickSample ( )

inline

Definition at line 87 of file cpu-profiler-inl.h.

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◆ operator delete()

void v8::internal::SamplingEventsProcessor::operator delete ( void * ptr )

Definition at line 357 of file cpu-profiler.cc.

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◆ operator new()

void * v8::internal::SamplingEventsProcessor::operator new ( size_t size )

Definition at line 353 of file cpu-profiler.cc.

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◆ period()

base::TimeDelta v8::internal::SamplingEventsProcessor::period ( ) const

inline

Definition at line 247 of file cpu-profiler.h.

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◆ ProcessOneSample()

ProfilerEventsProcessor::SampleProcessingResult v8::internal::SamplingEventsProcessor::ProcessOneSample ( )

overrideprivatevirtual

Implements v8::internal::ProfilerEventsProcessor.

Definition at line 255 of file cpu-profiler.cc.

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◆ Run()

void v8::internal::SamplingEventsProcessor::Run ( )

overridevirtual

Implements v8::internal::ProfilerEventsProcessor.

Definition at line 278 of file cpu-profiler.cc.

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◆ sampler()

sampler::Sampler * v8::internal::SamplingEventsProcessor::sampler ( )

inline

Definition at line 246 of file cpu-profiler.h.

◆ SetSamplingInterval()

void v8::internal::SamplingEventsProcessor::SetSamplingInterval ( base::TimeDelta period )

overridevirtual

Reimplemented from v8::internal::ProfilerEventsProcessor.

Definition at line 343 of file cpu-profiler.cc.

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◆ StartTickSample()

TickSample * v8::internal::SamplingEventsProcessor::StartTickSample ( )

inline

Definition at line 73 of file cpu-profiler-inl.h.

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◆ SymbolizeAndAddToProfiles()

void v8::internal::SamplingEventsProcessor::SymbolizeAndAddToProfiles ( const TickSampleEventRecord * record )

private

Definition at line 240 of file cpu-profiler.cc.

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Member Data Documentation

◆ kTickSampleBufferSize

const size_t v8::internal::SamplingEventsProcessor::kTickSampleBufferSize = 512 * KB

staticprivate

Definition at line 253 of file cpu-profiler.h.

◆ kTickSampleQueueLength

const size_t v8::internal::SamplingEventsProcessor::kTickSampleQueueLength

staticprivate

Initial value:

=

kTickSampleBufferSize / sizeof(TickSampleEventRecord)

v8::internal::SamplingEventsProcessor::kTickSampleBufferSize

static const size_t kTickSampleBufferSize

Definition cpu-profiler.h:253

Definition at line 254 of file cpu-profiler.h.

◆ period_

base::TimeDelta v8::internal::SamplingEventsProcessor::period_

private

Definition at line 259 of file cpu-profiler.h.

◆ sampler_

std::unique_ptr<sampler::Sampler> v8::internal::SamplingEventsProcessor::sampler_

private

Definition at line 258 of file cpu-profiler.h.

◆ ticks_buffer_

SamplingCircularQueue<TickSampleEventRecord, kTickSampleQueueLength> v8::internal::SamplingEventsProcessor::ticks_buffer_

private

Definition at line 257 of file cpu-profiler.h.

◆ use_precise_sampling_

const bool v8::internal::SamplingEventsProcessor::use_precise_sampling_

private

Definition at line 260 of file cpu-profiler.h.

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

src/profiler/cpu-profiler.h
src/profiler/cpu-profiler-inl.h
src/profiler/cpu-profiler.cc

Public Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SamplingEventsProcessor()

◆ ~SamplingEventsProcessor()

Member Function Documentation

◆ FinishTickSample()

◆ operator delete()

◆ operator new()

◆ period()

◆ ProcessOneSample()

◆ Run()

◆ sampler()

◆ SetSamplingInterval()

◆ StartTickSample()

◆ SymbolizeAndAddToProfiles()

Member Data Documentation

◆ kTickSampleBufferSize

◆ kTickSampleQueueLength

◆ period_

◆ sampler_

◆ ticks_buffer_

◆ use_precise_sampling_