org.LatencyUtils
Class MovingAverageIntervalEstimator

java.lang.Object
  org.LatencyUtils.IntervalEstimator
      org.LatencyUtils.MovingAverageIntervalEstimator

Direct Known Subclasses:

TimeCappedMovingAverageIntervalEstimator

public class MovingAverageIntervalEstimator
extends IntervalEstimator

A moving average interval estimator. Estimates intervalEndTimes by averaging the interval values recorded in a moving window. Will only provide average estimate once enough intervalEndTimes have been collected to fill the window, and will return an impossibly long interval estimate until then.

Constructor Summary

MovingAverageIntervalEstimator(int requestedWindowLength)

Method Summary

long	getEstimatedInterval(long when) Provides the estimated interval
void	recordInterval(long when) Record an interval

Methods inherited from class java.lang.Object

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

Constructor Detail

MovingAverageIntervalEstimator

public MovingAverageIntervalEstimator(int requestedWindowLength)

Parameters:

requestedWindowLength - The requested length of the moving window. May be rounded up to nearest power of 2.

Method Detail

recordInterval

public void recordInterval(long when)

Description copied from class: IntervalEstimator

Record an interval

Specified by:

recordInterval in class IntervalEstimator

Parameters:

when - the end time (in nanoTime units) at which the interval was observed.

getEstimatedInterval

public long getEstimatedInterval(long when)

Description copied from class: IntervalEstimator

Provides the estimated interval

Specified by:

getEstimatedInterval in class IntervalEstimator

Parameters:

when - the time (preferably now) at which the estimated interval is requested.

Returns:

estimated interval