simnet
Class SpeedTest

java.lang.Object
  java.lang.Thread
      simnet.Application
          simnet.SpeedTest

All Implemented Interfaces:

Pluggable, PlugoutListener, java.lang.Runnable, SimnetWindowListener

public class SpeedTest

extends Application

implements Pluggable

An application that is used to test how well bandwidth and latency are modelled.

Nested Class Summary

(package private) class

SpeedTest.STThread Inner class used to send out packets for a SpeedTest.

Field Summary

protected static Histogram	hist
protected boolean	keep_going
(package private) DatagramSocket	sock
static int	SpeedTestPort Which port to run the speed test on.
protected static int	st_left
protected java.lang.Thread	test_thread

Fields inherited from class simnet.Application

appid, appstart, frame, initialized, node, NODE_ID, pid, random, sim, win

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

SpeedTest()

Method Summary

void	customInit() Create a UDP socket and bind it to the speed test port.
boolean	prePlugout(java.lang.Object replacement) If a test is currently running from this application, stop it.
void	run() Receive speed test packets, and record them.
void	SpeedTest(java.lang.Integer rounds, java.lang.Integer delay) Run a speed test for the specified number of rounds, with the specified delay between rounds.
void	SpeedTest(java.lang.Integer rounds, java.lang.Integer delay, java.lang.Integer stagger) Run a speed test for the specified number of rounds, with the specified delay between rounds.
void	SpeedTest(java.lang.String all, java.lang.Integer rounds, java.lang.Integer delay) Run a speed test with the specified parameters, and a stagger of 0.
void	SpeedTest(java.lang.String all, java.lang.Integer rounds, java.lang.Integer delay, java.lang.Integer stagger) Run a speed test for the specified number of rounds with delay between each round.
void	SpeedTestResults() Print out the results of a speed test, waiting for it to finish, if necessary.

Methods inherited from class simnet.Application

closeWindow, finalize, getTitleString, initialize, plugoutNotification, printout, printout, processWindowCommand, rawOut, window

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setName, setPriority, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

SpeedTestPort

public static final int SpeedTestPort

Which port to run the speed test on.

See Also:

Constant Field Values

sock

DatagramSocket sock

keep_going

protected transient boolean keep_going

st_left

protected static int st_left

hist

protected static Histogram hist

test_thread

protected transient java.lang.Thread test_thread

Constructor Detail

SpeedTest

public SpeedTest()

Method Detail

customInit

public void customInit()

Create a UDP socket and bind it to the speed test port.

Overrides:

customInit in class Application

SpeedTestResults

public void SpeedTestResults()

Print out the results of a speed test, waiting for it to finish, if necessary.

SpeedTest

public void SpeedTest(java.lang.String all,
                      java.lang.Integer rounds,
                      java.lang.Integer delay)

Run a speed test with the specified parameters, and a stagger of 0.

SpeedTest

public void SpeedTest(java.lang.String all,
                      java.lang.Integer rounds,
                      java.lang.Integer delay,
                      java.lang.Integer stagger)

Run a speed test for the specified number of rounds with delay between each round. A delay of stagger will be between each packet. In each round, a packet will be sent to every other node. If all is "all", the speed test will be run at all nodes, otherwise, it will just be run on this node.

SpeedTest

public void SpeedTest(java.lang.Integer rounds,
                      java.lang.Integer delay)

Run a speed test for the specified number of rounds, with the specified delay between rounds. Between sending packets to each destination, there will be an additional delay of stagger ms. A stagger of 0 will be used if no stagger is specified.

SpeedTest

public void SpeedTest(java.lang.Integer rounds,
                      java.lang.Integer delay,
                      java.lang.Integer stagger)

Run a speed test for the specified number of rounds, with the specified delay between rounds. Between sending packets to each destination, there will be an additional delay of stagger ms.

run

public void run()

Receive speed test packets, and record them.

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class Application

prePlugout

public boolean prePlugout(java.lang.Object replacement)

If a test is currently running from this application, stop it. This is somewhat motivated by the fact that we can't exactly copy our speed test thread over to a new application.

Specified by:

prePlugout in interface Pluggable

Returns:

if this object can now be removed (was the operation sucessful)