edu.cmu.emulator.controlComm
Class JitterTest

java.lang.Object
  RealtimeThread
      edu.cmu.emulator.controlComm.JitterTest

public class JitterTest
extends RealtimeThread

Field Summary

protected long	msecs
protected int	nsecs
(package private) Clock	refRTClock
protected int	trials
protected long	usecs

Constructor Summary

JitterTest(Clock rtClock, long usecs, int trials)

Method Summary

static void	dumpTest(String auxFPGAIP, String[] args) The dumpTest method sends a constant stream of spaced packets to see what the actual timing and delivery is like.
static void	jitterTest(long usecs, int trials) The jitterTest method tries to schedule a sequence of pricesly-spaced events to evaluate system scheduling jitter.
static void	main(String[] args)
void	run()

Methods inherited from class java.lang.Object

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

Field Detail

usecs

protected long usecs

msecs

protected long msecs

nsecs

protected int nsecs

trials

protected int trials

refRTClock

Clock refRTClock

Constructor Detail

JitterTest

JitterTest(Clock rtClock,
           long usecs,
           int trials)

Method Detail

dumpTest

public static void dumpTest(String auxFPGAIP,
                            String[] args)
                     throws IOException

The dumpTest method sends a constant stream of spaced packets to see what the actual timing and delivery is like.

Parameters:

args - Currently unused

Throws:

IOException - Passed on from CommSender()

jitterTest

public static void jitterTest(long usecs,
                              int trials)

The jitterTest method tries to schedule a sequence of pricesly-spaced events to evaluate system scheduling jitter. No attempt to actually send messages is made.

Parameters:

usecs - Microseconds to sleep between measurements

trials - Number of trials to attempt

run

public void run()

main

public static void main(String[] args)