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1   /**
2    * Logback: the reliable, generic, fast and flexible logging framework.
3    * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
4    *
5    * This program and the accompanying materials are dual-licensed under
6    * either the terms of the Eclipse Public License v1.0 as published by
7    * the Eclipse Foundation
8    *
9    *   or (per the licensee's choosing)
10   *
11   * under the terms of the GNU Lesser General Public License version 2.1
12   * as published by the Free Software Foundation.
13   */
14  package ch.qos.logback.core.issue;
15  
16  import ch.qos.logback.core.contention.RunnableWithCounterAndDone;
17  import ch.qos.logback.core.contention.ThreadedThroughputCalculator;
18  import ch.qos.logback.core.issue.SelectiveLockRunnable.LockingModel;
19  
20  /**
21   * Short sample code testing the throughput of a fair lock.
22   * 
23   * @author Joern Huxhorn
24   * @author Ceki Gulcu
25   */
26  public class LockThroughput {
27  
28      static int THREAD_COUNT = 10;
29      static long OVERALL_DURATION_IN_MILLIS = 5000;
30  
31      public static void main(String args[]) throws InterruptedException {
32  
33          ThreadedThroughputCalculator tp = new ThreadedThroughputCalculator(OVERALL_DURATION_IN_MILLIS);
34          tp.printEnvironmentInfo("LockThroughput");
35  
36          for (int i = 0; i < 2; i++) {
37              tp.execute(buildArray(LockingModel.SYNC));
38              tp.execute(buildArray(LockingModel.UNFAIR));
39              tp.execute(buildArray(LockingModel.FAIR));
40          }
41  
42  
43          RunnableWithCounterAndDone[] runnableArraySync = buildArray(LockingModel.SYNC);
44          tp.execute(runnableArraySync);
45          tp.printThroughput(runnableArraySync, "Sync:   ");
46  
47  
48          RunnableWithCounterAndDone[] runnableArrayUnfair = buildArray(LockingModel.UNFAIR);
49          tp.execute(runnableArrayUnfair);
50          tp.printThroughput(runnableArrayUnfair, "Unfair: ");
51  
52          RunnableWithCounterAndDone[] runnableArrayFair = buildArray(LockingModel.FAIR);
53          tp.execute(runnableArrayFair);
54          tp.printThroughput(runnableArrayFair, "Fair:   ");
55      }
56  
57      static SelectiveLockRunnable[] buildArray(LockingModel model) {
58          SelectiveLockRunnable[] array = new SelectiveLockRunnable[THREAD_COUNT];
59          for (int i = 0; i < THREAD_COUNT; i++) {
60              array[i] = new SelectiveLockRunnable(model);
61          }
62          return array;
63      }
64  
65  }