Package hudson.diagnosis

Class MemoryUsageMonitor

java.lang.Object

java.util.TimerTask

hudson.triggers.SafeTimerTask

hudson.model.PeriodicWork

hudson.diagnosis.MemoryUsageMonitor

All Implemented Interfaces:

ExtensionPoint, Runnable

@Extension
@Symbol("memoryUsage")
public final class MemoryUsageMonitor
extends PeriodicWork

Monitors the memory usage of the system in OS specific way.

Author:

Kohsuke Kawaguchi

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	MemoryUsageMonitor.MemoryGroup	A memory group is conceptually a set of memory pools.

Nested classes/interfaces inherited from class hudson.triggers.SafeTimerTask

SafeTimerTask.ExceptionRunnable

Nested classes/interfaces inherited from interface hudson.ExtensionPoint

ExtensionPoint.LegacyInstancesAreScopedToHudson

Field Summary

Fields

Modifier and Type	Field	Description
final MemoryUsageMonitor.MemoryGroup	heap
final MemoryUsageMonitor.MemoryGroup	nonHeap

Fields inherited from class hudson.model.PeriodicWork

DAY, HOUR, logger, MIN

Constructor Summary

Constructors

Constructor	Description
MemoryUsageMonitor()

Method Summary

Modifier and Type	Method	Description
protected void	doRun()
long	getRecurrencePeriod()	Gets the number of milliseconds between successive executions.

Methods inherited from class hudson.model.PeriodicWork

all, getInitialDelay, init

Methods inherited from class hudson.triggers.SafeTimerTask

getLogsRoot, of, run

Methods inherited from class java.util.TimerTask

cancel, scheduledExecutionTime

Methods inherited from class java.lang.Object

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

Field Details

heap

public final MemoryUsageMonitor.MemoryGroup heap

nonHeap

public final MemoryUsageMonitor.MemoryGroup nonHeap

Constructor Details

MemoryUsageMonitor

public MemoryUsageMonitor()

Method Details

getRecurrencePeriod

public long getRecurrencePeriod()

Description copied from class: PeriodicWork

Gets the number of milliseconds between successive executions.

Hudson calls this method once to set up a recurring timer, instead of calling this each time after the previous execution completed. So this class cannot be used to implement a non-regular recurring timer.

IOW, the method should always return the same value.

Specified by:

getRecurrencePeriod in class PeriodicWork

doRun

protected void doRun()

Specified by:

doRun in class SafeTimerTask