v8
6.2.414 (node 8.16.2)
V8 is Google's open source JavaScript engine
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#include <v8-profiler.h>
Public Member Functions | |
void | Dispose () |
void | SetSamplingInterval (int us) |
void | StartProfiling (Local< String > title, bool record_samples=false) |
CpuProfile * | StopProfiling (Local< String > title) |
void | CollectSample () |
void | SetIdle (bool is_idle) |
Static Public Member Functions | |
static CpuProfiler * | New (Isolate *isolate) |
Interface for controlling CPU profiling. Instance of the profiler can be created using v8::CpuProfiler::New method.
Definition at line 280 of file v8-profiler.h.
void CollectSample | ( | ) |
Force collection of a sample. Must be called on the VM thread. Recording the forced sample does not contribute to the aggregated profile statistics.
void Dispose | ( | ) |
Disposes the CPU profiler object.
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static |
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 SetIdle | ( | bool | is_idle | ) |
Tells the profiler whether the embedder is idle.
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.
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.
CpuProfile* 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.