org.apache.tez.common

Class GcTimeUpdater

java.lang.Object

org.apache.tez.common.GcTimeUpdater

@InterfaceAudience.Private
public class GcTimeUpdater
extends Object

An updater that tracks the amount of time this task has spent in GC.

Constructor Summary

Constructors

Constructor and Description
GcTimeUpdater(org.apache.tez.common.counters.TezCounters counters)

Method Summary

Modifier and Type	Method and Description
long	getCumulativaGcTime()
protected long	getElapsedGc() Get the elapsed time since the last call.
void	incrementGcCounter() Increment the gc-elapsed-time counter.

Methods inherited from class java.lang.Object

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

Constructor Detail

GcTimeUpdater

public GcTimeUpdater(org.apache.tez.common.counters.TezCounters counters)

Method Detail

getCumulativaGcTime

public long getCumulativaGcTime()

getElapsedGc

protected long getElapsedGc()

Get the elapsed time since the last call. This is not thread safe.

Returns:

the number of milliseconds that the gc has used for CPU since the last time this method was called.

incrementGcCounter

public void incrementGcCounter()

Increment the gc-elapsed-time counter.