V8 API Reference Guide generated from the header files
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#include <v8-profiler.h>
Public Member Functions | |
void | Dispose () |
void | SetSamplingInterval (int us) |
void | StartProfiling (Local< String > title, CpuProfilingMode mode, bool record_samples=false) |
void | StartProfiling (Local< String > title, bool record_samples=false) |
CpuProfile * | StopProfiling (Local< String > title) |
V8_DEPRECATED ("Use static CollectSample(Isolate*) instead.", void CollectSample()) | |
V8_DEPRECATED ("Use Isolate::SetIdle(bool) instead.", void SetIdle(bool is_idle)) | |
Static Public Member Functions | |
static CpuProfiler * | New (Isolate *isolate) |
static void | CollectSample (Isolate *isolate) |
Interface for controlling CPU profiling. Instance of the profiler can be created using v8::CpuProfiler::New method.
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Synchronously collect current stack sample in all profilers attached to the |isolate|. The call does not affect number of ticks recorded for the current top node.
void v8::CpuProfiler::Dispose | ( | ) |
Disposes the CPU profiler object.
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Creates a new CPU profiler for the |isolate|. The isolate must be initialized. The profiler object must be disposed after use by calling |Dispose| method.
void v8::CpuProfiler::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.
void v8::CpuProfiler::StartProfiling | ( | Local< String > | title, |
CpuProfilingMode | mode, | ||
bool | record_samples = false |
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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.
The same as StartProfiling above, but the CpuProfilingMode defaults to kLeafNodeLineNumbers mode, which was the previous default behavior of the profiler.
CpuProfile* v8::CpuProfiler::StopProfiling | ( | Local< String > | title | ) |
Stops collecting CPU profile with a given title and returns it. If the title given is empty, finishes the last profile started.
v8::CpuProfiler::V8_DEPRECATED | ( | "Use static CollectSample(Isolate*) instead." | , |
void | CollectSample() | ||
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Force collection of a sample. Must be called on the VM thread. Recording the forced sample does not contribute to the aggregated profile statistics.
v8::CpuProfiler::V8_DEPRECATED | ( | "Use Isolate::SetIdle(bool) instead." | , |
void | SetIdlebool is_idle | ||
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Tells the profiler whether the embedder is idle.