org.elasticsearch.common.util.concurrent

クラス ThreadBarrier.BarrierTimer

java.lang.Object

org.elasticsearch.common.util.concurrent.ThreadBarrier.BarrierTimer

すべての実装されたインタフェース:

Runnable

含まれているクラス:

ThreadBarrier

public static class ThreadBarrier.BarrierTimer
extends Object
implements Runnable

A Barrier action to be used in conjunction with ThreadBarrier to measure performance between barrier awaits. This runnable will execute when the barrier is tripped. Make sure to reset() the timer before next Measurement.

関連項目:

Usage example:

                                                                                             BarrierTimer timer = new BarrierTimer();
                                                                                             ThreadBarrier barrier = new ThreadBarrier( nTHREADS + 1, timer );
                                                                                             ..
                                                                                             barrier.await(); // starts timer when all threads trip on await
                                                                                             barrier.await(); // stops  timer when all threads trip on await
                                                                                             ..
                                                                                             long time = timer.getTimeInNanos();
                                                                                             long tpi = time / ((long)nREPEATS * nTHREADS); //throughput per thread iteration
                                                                                             long secs = timer.getTimeInSeconds();    //total runtime in seconds
                                                                                             ..
                                                                                             timer.reset();  // reuse timer
                                                                                           

コンストラクタのサマリー

コンストラクタ

コンストラクタと説明
BarrierTimer()

メソッドのサマリー

修飾子とタイプ	メソッドと説明
long	getTimeInNanos() Returns the elapsed time between two successive barrier executions.
double	getTimeInSeconds() Returns the elapsed time between two successive barrier executions.
void	reset() resets (clears) this timer before next execution.
void	run()

クラスから継承されたメソッド java.lang.Object

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

コンストラクタの詳細

BarrierTimer

public BarrierTimer()

メソッドの詳細

run

public void run()

定義:

run インタフェース内 Runnable

reset

public void reset()

resets (clears) this timer before next execution.

getTimeInNanos

public long getTimeInNanos()

Returns the elapsed time between two successive barrier executions.

戻り値:

elapsed time in nanoseconds.

getTimeInSeconds

public double getTimeInSeconds()

Returns the elapsed time between two successive barrier executions.

戻り値:

elapsed time in seconds.