net.bull.javamelody.internal.model

Class SamplingProfiler

java.lang.Object

net.bull.javamelody.internal.model.SamplingProfiler

public class SamplingProfiler
extends Object

Detect CPU hotspots CPU by periodic sampling of the stack-traces of the threads.

Author:

Emeric Vernat with some ideas from Cédrik Lime

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SamplingProfiler.SampledMethod Sampled method.

Constructor Summary

Constructors

Constructor and Description
SamplingProfiler() Constructor.
SamplingProfiler(List<String> excludedPackages, List<String> includedPackages) Constructor.
SamplingProfiler(String excludedPackages, String includedPackages) Constructor.

Method Summary

Modifier and Type	Method and Description
void	clear()
List<SamplingProfiler.SampledMethod>	getHotspots(int rows)
void	update()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SamplingProfiler

public SamplingProfiler()

Constructor. Excluded packages by default "java,sun,com.sun,javax,org.apache,org.hibernate,oracle,org.postgresql,org.eclipse"

SamplingProfiler

public SamplingProfiler(List<String> excludedPackages,
                        List<String> includedPackages)

Constructor.

Parameters:

excludedPackages - List of excluded packages (can be null)

includedPackages - List of included packages (can be null)

SamplingProfiler

public SamplingProfiler(String excludedPackages,
                        String includedPackages)

Constructor.

Parameters:

excludedPackages - List of excluded packages separated by comma (can be null)

includedPackages - List of included packages separated by comma (can be null)

Method Detail

update

public void update()

getHotspots

public List<SamplingProfiler.SampledMethod> getHotspots(int rows)

clear

public void clear()