Mercurial > hg > truffle
view test/runtime/7158800/InternTest.java @ 6371:4b8a9dee2bff
added tests for monitor snippets
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 13 Sep 2012 00:25:58 +0200 |
parents | e9140bf80b4a |
children |
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/* * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @bug 7158800 * @run shell/timeout=400 Test7158800.sh * @summary This test performs poorly if alternate hashing isn't used for * string table. * The timeout is handled by the shell file (which kills the process) */ import java.util.*; import java.io.*; public class InternTest { public static void main (String args[]) throws Exception { final String badStringsFilename = "badstrings.txt"; if (args.length == 0 || (!args[0].equals("bad") && !args[0].equals("normal"))) { System.out.println("Usage: java InternTest [normal|bad]"); System.exit(1); } FileInputStream fstream = new FileInputStream(badStringsFilename); DataInputStream in = new DataInputStream(fstream); BufferedReader br = new BufferedReader(new InputStreamReader(in)); String toIntern, toDiscard; int count = 0; long current = 0L; long last = System.currentTimeMillis(); if (args[0].equals("bad")) { while ((toIntern = br.readLine()) != null) { toDiscard = new String((new Integer((int)(Math.random() * Integer.MAX_VALUE))).toString()); toIntern.intern(); count++; if (count % 10000 == 0 && count != 0) { current = System.currentTimeMillis(); System.out.println(new Date(current) + ": interned " + count + " 0-hash strings - last 10000 took " + ((float)(current - last))/1000 + "s (" + ((float)(current - last))/10000000 + "s per String)"); last = current; } } } if (args[0].equals("normal")) { while ((toDiscard = br.readLine()) != null) { // do the same read from the file to try and make the test fair toIntern = new String((new Integer((int)(Math.random() * Integer.MAX_VALUE))).toString()); toIntern.intern(); count++; if (count % 10000 == 0 && count != 0) { current = System.currentTimeMillis(); System.out.println(new Date(current) + ": interned " + count + " normal strings - last 10000 took " + ((float)(current - last))/1000 + "s (" + ((float)(current - last))/10000000 + "s per String)"); last = current; } } } in.close(); } }