io.webfolder.cdp.command

Interface Profiler

public interface Profiler

Method Summary

Modifier and Type	Method and Description
void	disable()
void	enable()
List<ScriptCoverage>	getBestEffortCoverage() Collect coverage data for the current isolate.
void	setSamplingInterval(Integer interval) Changes CPU profiler sampling interval.
void	start()
void	startPreciseCoverage() Enable precise code coverage.
void	startPreciseCoverage(Boolean callCount, Boolean detailed) Enable precise code coverage.
void	startTypeProfile() Enable type profile.
Profile	stop()
void	stopPreciseCoverage() Disable precise code coverage.
void	stopTypeProfile() Disable type profile.
List<ScriptCoverage>	takePreciseCoverage() Collect coverage data for the current isolate, and resets execution counters.
List<ScriptTypeProfile>	takeTypeProfile() Collect type profile.

Method Detail

enable

void enable()

disable

void disable()

setSamplingInterval

void setSamplingInterval(Integer interval)

Changes CPU profiler sampling interval. Must be called before CPU profiles recording started.

Parameters:

interval - New sampling interval in microseconds.

start

void start()

stop

Profile stop()

startPreciseCoverage

void startPreciseCoverage(Boolean callCount,
                          Boolean detailed)

Enable precise code coverage. Coverage data for JavaScript executed before enabling precise code coverage may be incomplete. Enabling prevents running optimized code and resets execution counters.

Parameters:

callCount - Collect accurate call counts beyond simple 'covered' or 'not covered'.

detailed - Collect block-based coverage.

stopPreciseCoverage

void stopPreciseCoverage()

Disable precise code coverage. Disabling releases unnecessary execution count records and allows executing optimized code.

takePreciseCoverage

List<ScriptCoverage> takePreciseCoverage()

Collect coverage data for the current isolate, and resets execution counters. Precise code coverage needs to have started.

Returns:

Coverage data for the current isolate.

getBestEffortCoverage

List<ScriptCoverage> getBestEffortCoverage()

Collect coverage data for the current isolate. The coverage data may be incomplete due to garbage collection.

Returns:

Coverage data for the current isolate.

startTypeProfile

void startTypeProfile()

Enable type profile.

stopTypeProfile

void stopTypeProfile()

Disable type profile. Disabling releases type profile data collected so far.

takeTypeProfile

List<ScriptTypeProfile> takeTypeProfile()

Collect type profile.

Returns:

Type profile for all scripts since startTypeProfile() was turned on.

startPreciseCoverage

void startPreciseCoverage()

Enable precise code coverage. Coverage data for JavaScript executed before enabling precise code coverage may be incomplete. Enabling prevents running optimized code and resets execution counters.