bundles/org.simantics.history/test/org/simantics/history/test/TestBindingPerformance.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management in
   3  * Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.history.test;
  13
  14 import org.simantics.databoard.Bindings;
  15 import org.simantics.databoard.binding.Binding;
  16 import org.simantics.history.util.ValueBand;
  17
  18 /**
  19  * Which is faster binding to use?
  20  *
  21  *    1. Write to record with reflection
  22  *
  23  *
  24  *
  25  *    2. Write to object array with boxed primitives
  26  *
  27  *
  28  *
  29  */
  30 public class TestBindingPerformance {
  31
  32         public static class Sample {
  33                 public double time, endTime, value, lastValue, min, max, avg, median;
  34                 public byte quality;
  35                 public int count;
  36         }
  37
  38         public static void test( Binding b ) throws Exception {
  39
  40                 Object s = b.createDefault();
  41                 ValueBand band = new ValueBand( b, s );
  42
  43                 for (int i=0; i<10000000; i++) {
  44                         double value = i;
  45                         band.setTime(Bindings.DOUBLE, value);
  46                         band.setEndTime(Bindings.DOUBLE, value);
  47                         band.setValue(Bindings.DOUBLE, value);
  48                         band.setLastValue(Bindings.DOUBLE, value);
  49                         band.setMin(Bindings.DOUBLE, value);
  50                         band.setMax(Bindings.DOUBLE, value);
  51                         band.setAvg(Bindings.DOUBLE, value);
  52                         band.setMedian(Bindings.DOUBLE, value);
  53                 }
  54
  55         }
  56
  57         public static void main(String[] args) throws Exception {
  58
  59                 Binding b1 = Bindings.getBinding( Sample.class );
  60                 Binding b2 = Bindings.getBinding( b1.type() );
  61
  62                 test(b1);
  63                 test(b2);
  64
  65                 long ct = System.currentTimeMillis();
  66                 test(b1);
  67                 System.out.println(System.currentTimeMillis()-ct);
  68
  69                 ct = System.currentTimeMillis();
  70                 test(b2);
  71                 System.out.println(System.currentTimeMillis()-ct);
  72
  73         }
  74
  75 }