001/**
002 * Logback: the reliable, generic, fast and flexible logging framework.
003 * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
004 *
005 * This program and the accompanying materials are dual-licensed under
006 * either the terms of the Eclipse Public License v1.0 as published by
007 * the Eclipse Foundation
008 *
009 *   or (per the licensee's choosing)
010 *
011 * under the terms of the GNU Lesser General Public License version 2.1
012 * as published by the Free Software Foundation.
013 */
014package ch.qos.logback.core.contention;
015
016/**
017 * Useful scaffolding to measure the throughput of certain operations when
018 * invoked by multiple threads.
019 * 
020 * @author Joern Huxhorn
021 * @author Ralph Goers
022 * @author Ceki Gulcu
023 */
024public class ThreadedThroughputCalculator extends MultiThreadedHarness {
025
026    public ThreadedThroughputCalculator(long overallDurationInMillis) {
027        super(overallDurationInMillis);
028    }
029
030    public void printThroughput(String msg) throws InterruptedException {
031        printThroughput(msg, false);
032    }
033
034    public void printThroughput(String msg, boolean detailed) throws InterruptedException {
035        long sum = 0;
036        for (RunnableWithCounterAndDone r : runnableArray) {
037            if (detailed) {
038                System.out.println(r + " count=" + r.getCounter());
039            }
040            sum += r.getCounter();
041        }
042
043        System.out.println(msg + "total of " + sum + " operations, or " + ((sum) / overallDurationInMillis) + " operations per millisecond");
044    }
045}