org.databene.stat
Class LatencyCounter

java.lang.Object
  org.databene.stat.LatencyCounter

public final class LatencyCounter
extends java.lang.Object

Counts latencies and calculates performance-related statistics.

Created: Created: 14.12.2006 18:11:58

Since:

1.0

Author:

Volker Bergmann

Constructor Summary

LatencyCounter()

LatencyCounter(int expectedMaxLatency)

Method Summary

void	addSample(int latency)
double	averageLatency()
long	duration()
long	getLatencyCount(long latency)
long	getStartTime()
long	maxLatency()
long	minLatency()
long	percentileLatency(int percentile)
void	printSummary(java.io.PrintWriter out, int... percentiles)
long	sampleCount()
void	start()
void	stop()
double	throughput()

Methods inherited from class java.lang.Object

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

Constructor Detail

LatencyCounter

public LatencyCounter()

LatencyCounter

public LatencyCounter(int expectedMaxLatency)

Method Detail

start

public void start()

addSample

public void addSample(int latency)

stop

public void stop()

getStartTime

public long getStartTime()

getLatencyCount

public long getLatencyCount(long latency)

averageLatency

public double averageLatency()

minLatency

public long minLatency()

maxLatency

public long maxLatency()

sampleCount

public long sampleCount()

percentileLatency

public long percentileLatency(int percentile)

throughput

public double throughput()

duration

public long duration()

printSummary

public void printSummary(java.io.PrintWriter out,
                         int... percentiles)