org.cache2k.impl.threading

Class GlobalPooledExecutor.Tunable

java.lang.Object

org.cache2k.impl.util.TunableConstants

org.cache2k.impl.threading.GlobalPooledExecutor.Tunable

All Implemented Interfaces:

Cloneable

Enclosing class:

GlobalPooledExecutor

public static class GlobalPooledExecutor.Tunable
extends TunableConstants

Field Summary

Fields

Modifier and Type	Field and Description
boolean	disableHardLimit Can be needed for applications which need a high thread count.
int	hardLimitThreadCount No more threads than this limit are created.
int	idleTimeMillis Time a thread waits for a next task.
int	queueSize Waiting task queue size.
int	randomIdleTimeMillis A random value gets added to the idle time.
boolean	randomizeIdleTime Idle time is extended by a random interval between 0 and randomIdleTimeMillis.
ThreadFactoryProvider	threadFactoryProvider
int	warningLimitThreadCount When this maximum thread count was reached once, an orange alert is issued.

Constructor Summary

Constructors

Constructor and Description
GlobalPooledExecutor.Tunable()

Method Summary

Methods inherited from class org.cache2k.impl.util.TunableConstants

clone

Methods inherited from class java.lang.Object

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

Field Detail

queueSize

public int queueSize

Waiting task queue size. Must be greater 0. The executor always queues in a task before starting a new thread. If the hardlimit is reached submitted tasks will be queued in first and than the submission stalls.

idleTimeMillis

public int idleTimeMillis

Time a thread waits for a next task. Must be greater than zero.

randomIdleTimeMillis

public int randomIdleTimeMillis

A random value gets added to the idle time. A high value, so there is an average amount of threads always available for operations.

randomizeIdleTime

public boolean randomizeIdleTime

Idle time is extended by a random interval between 0 and randomIdleTimeMillis.

hardLimitThreadCount

public int hardLimitThreadCount

No more threads than this limit are created. When this limit is reached the submission of new tasks stalls until a thread becomes available again. The default is 100 threads per processor. This value is rather high.

disableHardLimit

public boolean disableHardLimit

Can be needed for applications which need a high thread count.

warningLimitThreadCount

public int warningLimitThreadCount

When this maximum thread count was reached once, an orange alert is issued.

threadFactoryProvider

public ThreadFactoryProvider threadFactoryProvider

Constructor Detail

GlobalPooledExecutor.Tunable

public GlobalPooledExecutor.Tunable()