it.cnr.isti.hpc.benchmark

Class Stopwatch

java.lang.Object

it.cnr.isti.hpc.benchmark.Stopwatch

public class Stopwatch
extends Object

A pool of stopwatches, useful for benchmarking code. Once you create an instance, you can start a stopwatch using

 
 instance.start("stopwatch-name")
 
 

where ''stopwatch-name'' is the symbolic name of a stopwatch. you can stop it using:

 
 instance.stop("stopwatch-name")
 
 

and get the benchmarks using the method stat. Please note that you can use start and stop multiple times, stat will provide you the average time and the total time.

Author:

Diego Ceccarelli Created on Sep 7, 2012

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	Stopwatch.SingleStopwatch A single stopwatch.

Field Summary

Fields

Modifier and Type	Field and Description
long	totalStopwatchesTime

Constructor Summary

Constructors

Constructor and Description
Stopwatch()

Method Summary

Methods

Modifier and Type	Method and Description
static void	main(String[] args)
void	start(String name) Starts a stopwatch with symbolic name 'name'
String	stat() Returns a string with all the benchmarks for all the stopwatches started
String	stat(String name) Returns a string containing the benchmark for the stopwatch 'name'
long	stop(String name) Stops a stopwatch with symbolic name 'name'

Methods inherited from class java.lang.Object

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

Field Detail

totalStopwatchesTime

public long totalStopwatchesTime

Constructor Detail

Stopwatch

public Stopwatch()

Method Detail

start

public void start(String name)

Starts a stopwatch with symbolic name 'name'

Parameters:

name - the symbolic name of the stopwatch

stop

public long stop(String name)

Stops a stopwatch with symbolic name 'name'

Parameters:

name - the symbolic name of the stopwatch

stat

public String stat(String name)

Returns a string containing the benchmark for the stopwatch 'name'

Parameters:

name - the symbolic name of the stopwatch

Returns:

a string with the benchmark for the stopwatch 'name'

stat

public String stat()

Returns a string with all the benchmarks for all the stopwatches started

Returns:

a string with the benchmarks for all the stopwatches

main

public static void main(String[] args)
                 throws InterruptedException

Throws:

InterruptedException