seda.sandStorm.internal
Class ThreadPoolController

java.lang.Object
  seda.sandStorm.internal.ThreadPoolController

public class ThreadPoolController
extends java.lang.Object

The ThreadPoolController is responsible for dynamically adusting the size of a given ThreadPool.

Nested Class Summary

(package private) class	ThreadPoolController.controllerThread Internal class implementing the controller.
(package private) class	ThreadPoolController.tpcClient Internal class representing a single TPC-controlled thread pool.

Field Summary

private static int	AUTO_MAX_DETECT_DELAY
private static int	AUTO_MAX_DETECT_RANDOM_JUMP
private boolean	autoMaxDetect
private java.lang.Thread	controller
private static int	CONTROLLER_DELAY
private int	controllerDelay
private int	controllerThreshold
private static boolean	DEBUG
private ManagerIF	mgr
private static double	SMOOTH_CONST
private static int	THROUGHPUT_MEASUREMENT_DELAY
private java.util.Vector	tpvec

Constructor Summary

ThreadPoolController(ManagerIF mgr)

ThreadPoolController(ManagerIF mgr, int delay, int threshold)

Method Summary

void	register(StageWrapperIF stage, ThreadPool tp) Register a thread pool with this controller, using the queue threshold specified by the system configuration.
void	register(StageWrapperIF stage, ThreadPool tp, ProfilableIF metric) Register a thread pool with this controller, using the queue threshold specified by the system configuration.
private void	start()

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG

private static final boolean DEBUG

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Constant Field Values

CONTROLLER_DELAY

private static final int CONTROLLER_DELAY

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Constant Field Values

THROUGHPUT_MEASUREMENT_DELAY

private static final int THROUGHPUT_MEASUREMENT_DELAY

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Constant Field Values

AUTO_MAX_DETECT_DELAY

private static final int AUTO_MAX_DETECT_DELAY

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Constant Field Values

AUTO_MAX_DETECT_RANDOM_JUMP

private static final int AUTO_MAX_DETECT_RANDOM_JUMP

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Constant Field Values

SMOOTH_CONST

private static final double SMOOTH_CONST

See Also:

Constant Field Values

mgr

private ManagerIF mgr

tpvec

private java.util.Vector tpvec

autoMaxDetect

private boolean autoMaxDetect

controller

private java.lang.Thread controller

controllerDelay

private int controllerDelay

controllerThreshold

private int controllerThreshold

Constructor Detail

ThreadPoolController

public ThreadPoolController(ManagerIF mgr)

ThreadPoolController

public ThreadPoolController(ManagerIF mgr,
                            int delay,
                            int threshold)

Method Detail

register

public void register(StageWrapperIF stage,
                     ThreadPool tp)

Register a thread pool with this controller, using the queue threshold specified by the system configuration.

register

public void register(StageWrapperIF stage,
                     ThreadPool tp,
                     ProfilableIF metric)

Register a thread pool with this controller, using the queue threshold specified by the system configuration.

start

private void start()