diff options
author | Sven Gothel <[email protected]> | 2010-10-14 18:39:42 +0200 |
---|---|---|
committer | Sven Gothel <[email protected]> | 2010-10-14 18:39:42 +0200 |
commit | 6ced17f0325d5719e992b246ffd156e5b39694b4 (patch) | |
tree | c8618ebe347466e26c5ac8feb818b6844761121e /src/junit/com | |
parent | 29999cf3b7616c8ab58f4483c672e30076fbb3e4 (diff) |
Fix: Memory consumption
Observing memory consumption showed:
1 - 'traceLock' debug stack traces (GLContextLock)
2 - massive Iterator usage
(1) is fixed, ie only enabled in DEBUG mode, like we have done in RecursiveLock before
(2) Using an Iterator on ArrayLists with a low element count < 100,
as it is usual in our use cases, is observed not to be faster
than accessing the elements via an index (-> TestIteratorIndexCORE.java ).
On the contrary, the index implementation was a bit faster.
Further more, these Iterators were massively used on the fly during animation,
hence their memory managment even impacts fluent processing/animation.
Recoded all animation related (display, surfaceUpdated, ..) loops using an index.
Diffstat (limited to 'src/junit/com')
-rw-r--r-- | src/junit/com/jogamp/test/junit/core/TestIteratorIndexCORE.java | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/src/junit/com/jogamp/test/junit/core/TestIteratorIndexCORE.java b/src/junit/com/jogamp/test/junit/core/TestIteratorIndexCORE.java new file mode 100644 index 000000000..0ed102e40 --- /dev/null +++ b/src/junit/com/jogamp/test/junit/core/TestIteratorIndexCORE.java @@ -0,0 +1,128 @@ +/** + * Copyright 2010 JogAmp Community. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, are + * permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this list of + * conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, this list + * of conditions and the following disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * The views and conclusions contained in the software and documentation are those of the + * authors and should not be interpreted as representing official policies, either expressed + * or implied, of JogAmp Community. + */ + +package com.jogamp.test.junit.core; + +import com.jogamp.test.junit.util.UITestCase; + +import java.util.*; +import java.io.IOException; + +import org.junit.Assert; +import org.junit.Before; +import org.junit.BeforeClass; +import org.junit.AfterClass; +import org.junit.Test; + +public class TestIteratorIndexCORE extends UITestCase { + + static int elems = 10; + static int loop = 9999999; + + public void populate(List l, int len) { + while(len>0) { + l.add(new Integer(len--)); + } + } + + @Test + public void test01ArrayListIterator() { + int sum=0; + ArrayList l = new ArrayList(); + populate(l, elems); + + for(int j=loop; j>0; j--) { + for(Iterator iter = l.iterator(); iter.hasNext(); ) { + Integer i = (Integer)iter.next(); + sum+=i.intValue(); + } + } + System.err.println("test01-arraylist-iterator sum: "+sum); + } + + @Test + public void test0ArrayListIndex() { + int sum=0; + ArrayList l = new ArrayList(); + populate(l, elems); + + for(int j=loop; j>0; j--) { + for(int k = 0; k < l.size(); k++) { + Integer i = (Integer)l.get(k); + sum+=i.intValue(); + } + } + System.err.println("test01-arraylist-index sum: "+sum); + } + + @Test + public void test01LinkedListListIterator() { + int sum=0; + LinkedList l = new LinkedList(); + populate(l, elems); + + for(int j=loop; j>0; j--) { + for(Iterator iter = l.iterator(); iter.hasNext(); ) { + Integer i = (Integer)iter.next(); + sum+=i.intValue(); + } + } + System.err.println("test01-linkedlist-iterator sum: "+sum); + } + + @Test + public void test01LinkedListListIndex() { + int sum=0; + LinkedList l = new LinkedList(); + populate(l, elems); + + for(int j=loop; j>0; j--) { + for(int k = 0; k < l.size(); k++) { + Integer i = (Integer)l.get(k); + sum+=i.intValue(); + } + } + System.err.println("test01-linkedlist-index sum: "+sum); + } + + public static void main(String args[]) throws IOException { + String tstname = TestIteratorIndexCORE.class.getName(); + org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(new String[] { + tstname, + "filtertrace=true", + "haltOnError=false", + "haltOnFailure=false", + "showoutput=true", + "outputtoformatters=true", + "logfailedtests=true", + "logtestlistenerevents=true", + "formatter=org.apache.tools.ant.taskdefs.optional.junit.PlainJUnitResultFormatter", + "formatter=org.apache.tools.ant.taskdefs.optional.junit.XMLJUnitResultFormatter,TEST-"+tstname+".xml" } ); + } + +} |