org.apache.hadoop.hbase.util

Class SimpleMovingAverage

java.lang.Object

org.apache.hadoop.hbase.util.MovingAverage

org.apache.hadoop.hbase.util.SimpleMovingAverage

@InterfaceAudience.Private
public class SimpleMovingAverage
extends MovingAverage

SMA measure the overall average execution time of a specific method.

Field Summary

Fields

Modifier and Type	Field and Description
protected long	count

Fields inherited from class org.apache.hadoop.hbase.util.MovingAverage

label

Constructor Summary

Constructors

Constructor and Description
SimpleMovingAverage(String label)

Method Summary

Modifier and Type	Method and Description
double	getAverageTime() Get average execution time of the measured method.
void	updateMostRecentTime(long elapsed) Update the most recent data.

Methods inherited from class org.apache.hadoop.hbase.util.MovingAverage

measure, start, stop

Methods inherited from class java.lang.Object

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

Field Detail

count

protected long count

Constructor Detail

SimpleMovingAverage

public SimpleMovingAverage(String label)

Method Detail

updateMostRecentTime

public void updateMostRecentTime(long elapsed)

Description copied from class: MovingAverage

Update the most recent data.

Specified by:

updateMostRecentTime in class MovingAverage

Parameters:

elapsed - elapsed time of the most recent measurement

getAverageTime

public double getAverageTime()

Description copied from class: MovingAverage

Get average execution time of the measured method.

Specified by:

getAverageTime in class MovingAverage

Returns:

average time in ns