org.apache.lucene.benchmark.stats
Class TimeData

java.lang.Object
  org.apache.lucene.benchmark.stats.TimeData

public class TimeData
extends Object

This class holds a data point measuring speed of processing.

Field Summary

long	count Number of records processed.
long	elapsed Elapsed time in milliseconds.
long	freeMem Free memory at the end of measurement interval.
String	name Name of the data point - usually one of a data series with the same name
long	totalMem Total memory at the end of measurement interval.

Constructor Summary

TimeData()

TimeData(String name)

Method Summary

protected Object	clone()
static String	getLabels() Get a short legend for toString() output.
double	getRate() Get rate of processing, defined as number of processed records per second.
void	recordMemUsage() Record memory usage.
void	reset() Reset counters.
void	start() Start counting elapsed time.
void	stop() Stop counting elapsed time.
String	toString()
String	toString(boolean withMem) Return a tab-seprated string containing this data.

Methods inherited from class java.lang.Object

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

Field Detail

name

public String name

Name of the data point - usually one of a data series with the same name

count

public long count

Number of records processed.

elapsed

public long elapsed

Elapsed time in milliseconds.

freeMem

public long freeMem

Free memory at the end of measurement interval.

totalMem

public long totalMem

Total memory at the end of measurement interval.

Constructor Detail

TimeData

public TimeData()

TimeData

public TimeData(String name)

Method Detail

start

public void start()

Start counting elapsed time.

stop

public void stop()

Stop counting elapsed time.

recordMemUsage

public void recordMemUsage()

Record memory usage.

reset

public void reset()

Reset counters.

clone

protected Object clone()

Overrides:

clone in class Object

getRate

public double getRate()

Get rate of processing, defined as number of processed records per second.

getLabels

public static String getLabels()

Get a short legend for toString() output.

toString

public String toString()

Overrides:

toString in class Object

toString

public String toString(boolean withMem)

Return a tab-seprated string containing this data.

Parameters:

withMem - if true, append also memory information

Returns:

The String