]> gerrit.simantics Code Review - simantics/platform.git/blobdiff - tests/org.simantics.db.tests/src/org/simantics/db/tests/performance/java/FieldAccessTest.java
Added missing org.simantics.db.{tests,testing} plug-ins.
[simantics/platform.git] / tests / org.simantics.db.tests / src / org / simantics / db / tests / performance / java / FieldAccessTest.java
diff --git a/tests/org.simantics.db.tests/src/org/simantics/db/tests/performance/java/FieldAccessTest.java b/tests/org.simantics.db.tests/src/org/simantics/db/tests/performance/java/FieldAccessTest.java
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+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.tests.performance.java;
+
+import org.simantics.db.testing.base.TestCommonPerf;
+
+/**
+ *
+ */
+public class FieldAccessTest extends TestCommonPerf {
+
+       final static class A {
+               
+               final private int value;
+               
+               public A(int value) {
+                       this.value = value;
+               }
+               
+               public int getValue() {
+                       return value;
+               }
+               
+       }
+       
+       final static class B {
+               
+               final private int value;
+               
+               public B(int value) {
+                       this.value = value;
+               }
+               
+       }
+
+       public static int LEN1 = 10000;
+       public static int LEN2 = 1000000000;
+
+       public void test() throws Exception {
+
+               
+               A a = new A(1);
+               B b = new B(1);
+
+               int counter = 0;
+               long start = System.nanoTime();
+               for(int i=0;i<LEN1;i++) counter += a.getValue();  
+               long duration = System.nanoTime() - start;
+
+               int counter2 = 0;
+               long start2 = System.nanoTime();
+               for(int i=0;i<LEN1;i++) counter2 += b.value;  
+               long duration2 = System.nanoTime() - start2;
+
+               int counter3 = 0;
+               long start3 = System.nanoTime();
+               for(int i=0;i<LEN2;i++) counter3 += a.getValue();  
+               long duration3 = System.nanoTime() - start3;
+
+               int counter4 = 0;
+               long start4 = System.nanoTime();
+               for(int i=0;i<LEN2;i++) counter4 += b.value;  
+               long duration4 = System.nanoTime() - start4;
+               
+               System.out.println("Finished in " + 1e-9*duration + "s.");
+               System.out.println("Finished in " + 1e-9*duration2 + "s.");
+               System.out.println("Finished in " + 1e-9*duration3 + "s.");
+               System.out.println("Finished in " + 1e-9*duration4 + "s.");
+               
+       }
+       
+}