[hornetq-commits] JBoss hornetq SVN: r8489 - in trunk/tests/src/org/hornetq/tests/unit/util: sizeof and 1 other directory.

Author: clebert.suconic(a)jboss.com Date: 2009-12-02 00:04:05 -0500 (Wed, 02 Dec 2009) New Revision: 8489 Added: trunk/tests/src/org/hornetq/tests/unit/util/sizeof/ trunk/tests/src/org/hornetq/tests/unit/util/sizeof/ObjectSizeOf.java trunk/tests/src/org/hornetq/tests/unit/util/sizeof/ServerMessageSizeOf.java trunk/tests/src/org/hornetq/tests/unit/util/sizeof/SizeOfBase.java Log: Adding sizeof tests (first commit) Added: trunk/tests/src/org/hornetq/tests/unit/util/sizeof/ObjectSizeOf.java =================================================================== --- trunk/tests/src/org/hornetq/tests/unit/util/sizeof/ObjectSizeOf.java (rev 0) +++ trunk/tests/src/org/hornetq/tests/unit/util/sizeof/ObjectSizeOf.java 2009-12-02 05:04:05 UTC (rev 8489) @@ -0,0 +1,34 @@ +/* + * Copyright 2009 Red Hat, Inc. + * Red Hat licenses this file to you under the Apache License, version + * 2.0 (the "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * http://www.apache.org/licenses/LICENSE-2.0 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + * implied. See the License for the specific language governing + * permissions and limitations under the License. + */ + +package org.hornetq.tests.unit.util.sizeof; + +/** + * Calculate the size of objects on the heap + * based on this article: + * http://www.javaworld.com/javaworld/javatips/jw-javatip130.html + * + * @author <mailto:clebert.suconic@jboss.org">Clebert Suconic</a> + * + * + */ +public class ObjectSizeOf extends SizeOfBase +{ + + @Override + protected Object newObject() + { + return new Object(); + } + +} Added: trunk/tests/src/org/hornetq/tests/unit/util/sizeof/ServerMessageSizeOf.java =================================================================== --- trunk/tests/src/org/hornetq/tests/unit/util/sizeof/ServerMessageSizeOf.java (rev 0) +++ trunk/tests/src/org/hornetq/tests/unit/util/sizeof/ServerMessageSizeOf.java 2009-12-02 05:04:05 UTC (rev 8489) @@ -0,0 +1,52 @@ +/* + * Copyright 2009 Red Hat, Inc. + * Red Hat licenses this file to you under the Apache License, version + * 2.0 (the "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * http://www.apache.org/licenses/LICENSE-2.0 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + * implied. See the License for the specific language governing + * permissions and limitations under the License. + */ + +package org.hornetq.tests.unit.util.sizeof; + +import org.hornetq.core.server.impl.ServerMessageImpl; + +/** + * A ServerMessageSizeOf + * + * @author <mailto:clebert.suconic@jboss.org">Clebert Suconic</a> + * + * + */ +public class ServerMessageSizeOf extends SizeOfBase +{ + + @Override + protected Object newObject() + { + return new ServerMessageImpl(1, 2000); + } + + // Constants ----------------------------------------------------- + + // Attributes ---------------------------------------------------- + + // Static -------------------------------------------------------- + + // Constructors -------------------------------------------------- + + // Public -------------------------------------------------------- + + // Package protected --------------------------------------------- + + // Protected ----------------------------------------------------- + + // Private ------------------------------------------------------- + + // Inner classes ------------------------------------------------- + +} Added: trunk/tests/src/org/hornetq/tests/unit/util/sizeof/SizeOfBase.java =================================================================== --- trunk/tests/src/org/hornetq/tests/unit/util/sizeof/SizeOfBase.java (rev 0) +++ trunk/tests/src/org/hornetq/tests/unit/util/sizeof/SizeOfBase.java 2009-12-02 05:04:05 UTC (rev 8489) @@ -0,0 +1,100 @@ +/* + * Copyright 2009 Red Hat, Inc. + * Red Hat licenses this file to you under the Apache License, version + * 2.0 (the "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * http://www.apache.org/licenses/LICENSE-2.0 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + * implied. See the License for the specific language governing + * permissions and limitations under the License. + */ + +package org.hornetq.tests.unit.util.sizeof; + +import org.hornetq.tests.util.UnitTestCase; + +/** + * A Base class for tests that are calculating size of objects + * + * @author <mailto:clebert.suconic@jboss.org">Clebert Suconic</a> + * + * + */ +public abstract class SizeOfBase extends UnitTestCase +{ + + // Constants ----------------------------------------------------- + + // Attributes ---------------------------------------------------- + + // Static -------------------------------------------------------- + + // Constructors -------------------------------------------------- + + // Public -------------------------------------------------------- + + private final Runtime runtime = Runtime.getRuntime(); + + private static final int numberOfObjects = 10000; + + public void testCalculateSize() + { + getMemorySize(); + newObject(); + + int i = 0; + long heap1 = 0; + long heap2 = 0; + long totalMemory1 = 0; + long totalMemory2 = 0; + + + final Object obj[] = new Object[numberOfObjects]; + // make sure we load the classes before + + heap1 = getMemorySize(); + + totalMemory1 = runtime.totalMemory(); + + for (i = 0; i < numberOfObjects; i++) + { + obj[i] = newObject(); + } + + heap2 = getMemorySize(); + + totalMemory2 = runtime.totalMemory(); + + final int size = Math.round(((float)(heap2 - heap1)) / numberOfObjects); + + if (totalMemory1 != totalMemory2) + { + System.out.println("Warning: JVM allocated more data what would make results invalid"); + } + + System.out.println("heap1 = " + heap1 + ", heap2 = " + heap2 + ", size = " + size); + + } + + private long getMemorySize() + { + for (int i = 0; i < 5; i++) + { + forceGC(); + } + return runtime.totalMemory() - runtime.freeMemory(); + } + + protected abstract Object newObject(); + + // Package protected --------------------------------------------- + + // Protected ----------------------------------------------------- + + // Private ------------------------------------------------------- + + // Inner classes ------------------------------------------------- + +}