bundles/org.simantics.databoard/scratch/org/simantics/databoard/tests/Jotakin6.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007 VTT Technical Research Centre of Finland and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     VTT Technical Research Centre of Finland - initial API and implementation
  10  *******************************************************************************/
  11 package org.simantics.databoard.tests;
  12
  13 import java.util.concurrent.locks.ReentrantReadWriteLock;
  14
  15 import org.simantics.databoard.Bindings;
  16 import org.simantics.databoard.binding.Binding;
  17
  18 public class Jotakin6 {
  19
  20         public static class X {
  21                 public int[] array = new int[1024*1024*4];
  22                 public long[] array2 = new long[1024*1024*4];
  23         }
  24
  25         public static class Y {
  26         }
  27
  28         public static void main(String[] args)
  29         throws Exception {
  30
  31                 ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
  32
  33                 lock.writeLock().lock();
  34                 lock.readLock().lock();
  35                 lock.readLock().unlock();
  36                 lock.writeLock().unlock();
  37
  38                 X x = new X();
  39                 Binding b = Bindings.getBinding(X.class);
  40
  41                 int hash = b.hashValue(x);
  42
  43                 long startTime = System.currentTimeMillis();
  44
  45                 hash = b.hashValue(x);
  46
  47                 long elapsedTime = System.currentTimeMillis() - startTime;
  48
  49                 System.out.println("hash="+hash+", time="+elapsedTime);
  50
  51         }
  52
  53 }
  54