Package org.scijava.util

Class Timing

java.lang.Object

org.scijava.util.Timing

public class Timing
extends Object

A helper class to help with optimizing the performance of a list of operations.

For example, when trying to figure out which Service would be the best candidate to speed up Context initialization, this helper comes in real handy: it accumulates a list of operations with their duration and prints out a sorted list when asked to.

Use this class as following:

 private static Timing timing = new Timing();
 ...
 private void oneOperation() {
  final long t1 = System.nanoTime();
  ...
  timing.add(System.nanoTime() - t1, "Operation #1");
 }
 ...
 private void atEnd() {
  ...
  timing.report("Operations");
 }
 

Author:

Johannes Schindelin

Constructor Summary

Constructors

Constructor	Description
Timing()

Method Summary

Modifier and Type	Method	Description
void	addTiming(long duration, Object message)
void	addTiming(Object message)
void	report(String description)
void	reset()
static Timing	start(boolean condition)
static void	stop(Timing timing)
static void	tick(Timing timing)
static void	tick(Timing timing, Object message)

Methods inherited from class java.lang.Object

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

Constructor Detail

Timing

public Timing()

Method Detail

reset

public void reset()

addTiming

public void addTiming(Object message)

addTiming

public void addTiming(long duration,
                      Object message)

report

public void report(String description)

start

public static Timing start(boolean condition)

tick

public static void tick(Timing timing)

tick

public static void tick(Timing timing,
                        Object message)

stop

public static void stop(Timing timing)