CpuProfiler Class Reference

#include <v8-profiler.h>

Public Member Functions
void	SetSamplingInterval (int us)
void	StartProfiling (Handle< String > title, bool record_samples=false)
void	StartCpuProfiling (Handle< String > title, bool record_samples=false)
CpuProfile *	StopProfiling (Handle< String > title)
const CpuProfile *	StopCpuProfiling (Handle< String > title)
void	SetIdle (bool is_idle)

Detailed Description

Interface for controlling CPU profiling. Instance of the profiler can be retrieved using v8::Isolate::GetCpuProfiler.

Definition at line 144 of file v8-profiler.h.

Member Function Documentation

void SetIdle

(

bool

is_idle

)

Tells the profiler whether the embedder is idle.

Definition at line 7163 of file api.cc.

References ASSERT, v8::internal::EXTERNAL, v8::internal::IDLE, Isolate::js_entry_sp(), and NULL.

void SetSamplingInterval

(

int

us

)

Changes default CPU profiler sampling interval to the specified number of microseconds. Default interval is 1000us. This method must be called when there are no profiles being recorded.

Definition at line 7133 of file api.cc.

References ASSERT.

void StartCpuProfiling	(	Handle< String >	title,
		bool	record_samples = false
	)

Deprecated. Use StartProfiling instead.

Definition at line 7146 of file api.cc.

Referenced by RunWithProfiler(), ProfilerExtension::StartProfiling(), and TEST().

void StartProfiling	(	Handle< String >	title,
		bool	record_samples = false
	)

Starts collecting CPU profile. Title may be an empty string. It is allowed to have several profiles being collected at once. Attempts to start collecting several profiles with the same title are silently ignored. While collecting a profile, functions from all security contexts are included in it. The token-based filtering is only performed when querying for a profile.

|record_samples| parameter controls whether individual samples should be recorded in addition to the aggregated tree.

Definition at line 7140 of file api.cc.

References Utils::OpenHandle().

const CpuProfile * StopCpuProfiling

(

Handle< String >

title

)

Deprecated. Use StopProfiling instead.

Definition at line 7158 of file api.cc.

Referenced by ProfilerExtension::StopProfiling(), and TEST().

CpuProfile * StopProfiling

(

Handle< String >

title

)

Stops collecting CPU profile with a given title and returns it. If the title given is empty, finishes the last profile started.

Definition at line 7151 of file api.cc.

References Utils::OpenHandle().

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

• include/v8-profiler.h
• src/api.cc