ikr.simlib.entities.phases

Class ProcessorSharingPhase

java.lang.Object

ikr.simlib.entities.Entity

ikr.simlib.entities.phases.ProcessorSharingPhase

public class ProcessorSharingPhase
extends Entity

Phase which models ideal processor sharing. The serviceTimePerUnit (the reciprocal of the rate) is shared equally between all messages. As more messages arrive in the system, the rate per message is reduced and the total finish time increases. If the load is above 1 (more messages arrive than can be processed), the ProcessorSharingPhase becomes unstable.

For analytical evaluation, see e.g. Yashkov (1986): Processor-sharing Queues: Some Progress in Analysis

Nested Class Summary

Nested classes/interfaces inherited from class ikr.simlib.entities.Entity

Entity.PortAlias

Field Summary

Fields inherited from class ikr.simlib.entities.Entity

portAliases, ports, simNode

Constructor Summary

Constructors

Constructor and Description
ProcessorSharingPhase(SimNode ownNode, double serviceTimePerUnit)

Method Summary

Methods

Modifier and Type	Method and Description
InputPort	getInput()
SynchronousOutputPort	getOutput()
void	handleMessageIndication() called when a new message arrives at the input port
void	handleProcessEvent() called when one message is finished, see also rescheduleEvent()

Methods inherited from class ikr.simlib.entities.Entity

addPort, aliasPort, aliasPort, connect, disconnect, getName, getNode, getPortByName, getPorts, isPortKnown, unaliasPort

Methods inherited from class java.lang.Object

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

Constructor Detail

ProcessorSharingPhase

public ProcessorSharingPhase(SimNode ownNode,
                     double serviceTimePerUnit)

Method Detail

getInput

public InputPort getInput()

getOutput

public SynchronousOutputPort getOutput()

handleProcessEvent

public void handleProcessEvent()

called when one message is finished, see also rescheduleEvent()

handleMessageIndication

public void handleMessageIndication()

called when a new message arrives at the input port