From 429c850d430a4df052beb07ea3c3e2dc3ec6898b Mon Sep 17 00:00:00 2001 From: Stephen Colebourne Date: Sun, 2 Nov 2003 23:43:00 +0000 Subject: [PATCH] Add basic performance test shell for testing maps git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/collections/trunk@131326 13f79535-47bb-0310-9956-ffa450edef68 --- .../commons/collections/MapPerformance.java | 215 ++++++++++++++++++ 1 file changed, 215 insertions(+) create mode 100644 src/test/org/apache/commons/collections/MapPerformance.java diff --git a/src/test/org/apache/commons/collections/MapPerformance.java b/src/test/org/apache/commons/collections/MapPerformance.java new file mode 100644 index 000000000..101fe09e4 --- /dev/null +++ b/src/test/org/apache/commons/collections/MapPerformance.java @@ -0,0 +1,215 @@ +/* + * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/test/org/apache/commons/collections/MapPerformance.java,v 1.1 2003/11/02 23:43:00 scolebourne Exp $ + * ==================================================================== + * + * The Apache Software License, Version 1.1 + * + * Copyright (c) 2003 The Apache Software Foundation. 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. + * + * 3. The end-user documentation included with the redistribution, if + * any, must include the following acknowledgment: + * "This product includes software developed by the + * Apache Software Foundation (http://www.apache.org/)." + * Alternately, this acknowledgment may appear in the software itself, + * if and wherever such third-party acknowledgments normally appear. + * + * 4. The names "The Jakarta Project", "Commons", and "Apache Software + * Foundation" must not be used to endorse or promote products derived + * from this software without prior written permission. For written + * permission, please contact apache@apache.org. + * + * 5. Products derived from this software may not be called "Apache" + * nor may "Apache" appear in their names without prior written + * permission of the Apache Software Foundation. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 THE APACHE SOFTWARE FOUNDATION OR + * ITS 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. + * ==================================================================== + * + * This software consists of voluntary contributions made by many + * individuals on behalf of the Apache Software Foundation. For more + * information on the Apache Software Foundation, please see + * . + * + */ +package org.apache.commons.collections; + +import java.util.Collection; +import java.util.Collections; +import java.util.HashMap; +import java.util.LinkedHashMap; +import java.util.Map; +import java.util.Set; +import java.util.TreeMap; + +/** + * TestMapPerformance is designed to perform basic Map performance tests. + * + * @author Stephen Colebourne + */ +public class MapPerformance { + + /** The total number of runs for each test */ + private static final int RUNS = 20000000; + + /** + * Main method + */ + public static void main(String[] args) { + testAll(); + } + + private static void testAll() { + Map dummyMap = new DummyMap(); + Map hashMap = new HashMap(); +// hashMap.put("Alpha", "A"); +// hashMap.put("Beta", "B"); +// hashMap.put("Gamma", "C"); +// hashMap.put("Delta", "D"); + Map flatMap = new Flat3Map(hashMap); + System.out.println(flatMap); + Map unmodHashMap = Collections.unmodifiableMap(new HashMap(hashMap)); + Map fastHashMap = new FastHashMap(hashMap); + Map treeMap = new TreeMap(hashMap); + Map seqMap = new SequencedHashMap(hashMap); + Map linkedMap = new LinkedHashMap(hashMap); + Map syncMap = Collections.unmodifiableMap(new HashMap(hashMap)); + Map bucketMap = new StaticBucketMap(); + bucketMap.putAll(hashMap); + Map doubleMap = new DoubleOrderedMap(hashMap); + + // dummy is required as the VM seems to hotspot the first call to the + // test method with the given type + test(dummyMap, " Dummy "); + test(dummyMap, " Dummy "); + test(dummyMap, " Dummy "); + test(flatMap, " Flat3 "); + test(hashMap, " HashMap "); + + test(flatMap, " Flat3 "); + test(flatMap, " Flat3 "); + test(flatMap, " Flat3 "); + + test(hashMap, " HashMap "); + test(hashMap, " HashMap "); + test(hashMap, " HashMap "); + +// test(treeMap, " TreeMap "); +// test(treeMap, " TreeMap "); +// test(treeMap, " TreeMap "); + +// test(unmodHashMap, "Unmod(HashMap) "); +// test(unmodHashMap, "Unmod(HashMap) "); +// test(unmodHashMap, "Unmod(HashMap) "); +// +// test(syncMap, " Sync(HashMap) "); +// test(syncMap, " Sync(HashMap) "); +// test(syncMap, " Sync(HashMap) "); +// +// test(fastHashMap, " FastHashMap "); +// test(fastHashMap, " FastHashMap "); +// test(fastHashMap, " FastHashMap "); +// +// test(seqMap, " SeqHashMap "); +// test(seqMap, " SeqHashMap "); +// test(seqMap, " SeqHashMap "); +// +// test(linkedMap, " LinkedHashMap "); +// test(linkedMap, " LinkedHashMap "); +// test(linkedMap, " LinkedHashMap "); +// +// test(bucketMap, " BucketMap "); +// test(bucketMap, " BucketMap "); +// test(bucketMap, " BucketMap "); +// +// test(doubleMap, " DoubleMap "); +// test(doubleMap, " DoubleMap "); +// test(doubleMap, " DoubleMap "); + } + + private static void test(Map map, String name) { + long start = 0, end = 0; + int total = 0; + start = System.currentTimeMillis(); + for (int i = RUNS; i > 0; i--) { +// if (map.get("Alpha") != null) total++; +// if (map.get("Beta") != null) total++; +// if (map.get("Gamma") != null) total++; + map.put("Alpha", "A"); + map.put("Beta", "B"); + map.put("Beta", "C"); + map.put("Gamma", "D"); +// map.remove("Gamma"); +// map.remove("Beta"); +// map.remove("Alpha"); + map.put("Delta", "E"); + map.clear(); + } + end = System.currentTimeMillis(); + System.out.println(name + (end - start)); + } + + // ---------------------------------------------------------------------- + + private static class DummyMap implements Map { + public void clear() { + } + public boolean containsKey(Object key) { + return false; + } + public boolean containsValue(Object value) { + return false; + } + public Set entrySet() { + return null; + } + public Object get(Object key) { + return null; + } + public boolean isEmpty() { + return false; + } + public Set keySet() { + return null; + } + public Object put(Object key, Object value) { + return null; + } + public void putAll(Map t) { + } + public Object remove(Object key) { + return null; + } + public int size() { + return 0; + } + public Collection values() { + return null; + } + } + +} +