v8::CpuProfile Class Reference

#include <v8-profiler.h>

Collaboration diagram for v8::CpuProfile:

Public Types
enum	SerializationFormat { kJSON = 0 }

Public Member Functions
Local< String >	GetTitle () const
const CpuProfileNode *	GetTopDownRoot () const
int	GetSamplesCount () const
const CpuProfileNode *	GetSample (int index) const
int64_t	GetSampleTimestamp (int index) const
int64_t	GetStartTime () const
StateTag	GetSampleState (int index) const
EmbedderStateTag	GetSampleEmbedderState (int index) const
int64_t	GetEndTime () const
void	Delete ()
void	Serialize (OutputStream *stream, SerializationFormat format=kJSON) const

Detailed Description

CpuProfile contains a CPU profile in a form of top-down call tree (from main() down to functions that do all the work).

Definition at line 210 of file v8-profiler.h.

Member Enumeration Documentation

SerializationFormat

enum v8::CpuProfile::SerializationFormat

Enumerator
kJSON

Definition at line 212 of file v8-profiler.h.

Member Function Documentation

Delete()

void v8::CpuProfile::Delete

(

)

Deletes the profile and removes it from CpuProfiler's list. All pointers to nodes previously returned become invalid.

Definition at line 11320 of file api.cc.

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GetEndTime()

int64_t v8::CpuProfile::GetEndTime

(

)

const

Returns time when the profile recording was stopped (in microseconds) since some unspecified starting point. The point is equal to the starting point used by GetStartTime.

Definition at line 11367 of file api.cc.

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GetSample()

const CpuProfileNode * v8::CpuProfile::GetSample

(

int

index

)

const

Returns profile node corresponding to the top frame the sample at the given index.

Definition at line 11339 of file api.cc.

GetSampleEmbedderState()

EmbedderStateTag v8::CpuProfile::GetSampleEmbedderState

(

int

index

)

const

Returns state of the embedder when sample was captured.

Definition at line 11357 of file api.cc.

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GetSamplesCount()

int v8::CpuProfile::GetSamplesCount

(

)

const

Returns number of samples recorded. The samples are not recorded unless |record_samples| parameter of CpuProfiler::StartCpuProfiling is true.

Definition at line 11387 of file api.cc.

GetSampleState()

StateTag v8::CpuProfile::GetSampleState

(

int

index

)

const

Returns state of the vm when sample was captured.

Definition at line 11352 of file api.cc.

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GetSampleTimestamp()

int64_t v8::CpuProfile::GetSampleTimestamp

(

int

index

)

const

Returns the timestamp of the sample. The timestamp is the number of microseconds since some unspecified starting point. The point is equal to the starting point used by GetStartTime.

Definition at line 11347 of file api.cc.

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GetStartTime()

int64_t v8::CpuProfile::GetStartTime

(

)

const

Returns time when the profile recording was started (in microseconds) since some unspecified starting point.

Definition at line 11362 of file api.cc.

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GetTitle()

Local< String > v8::CpuProfile::GetTitle

(

)

const

Returns CPU profile title.

Definition at line 11327 of file api.cc.

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GetTopDownRoot()

const CpuProfileNode * v8::CpuProfile::GetTopDownRoot

(

)

const

Returns the root node of the top down call tree.

Definition at line 11334 of file api.cc.

Serialize()

void v8::CpuProfile::Serialize	(	OutputStream *	stream,
		CpuProfile::SerializationFormat	format = kJSON ) const

Prepare a serialized representation of the profile. The result is written into the stream provided in chunks of specified size.

For the JSON format, heap contents are represented as an object with the following structure:

{ nodes: [nodes array], startTime: number, endTime: number samples: [strings array] timeDeltas: [numbers array] }

Definition at line 11377 of file api.cc.

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

• include/v8-profiler.h
• src/api/api.cc