Mercurial > hg > graal-compiler
view test/gc/concurrentMarkSweep/DisableResizePLAB.java @ 21080:3253fe1bed41
Remove CompressedNullCheckOp, merge functionality into regular NullCheckOp.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Wed, 22 Apr 2015 16:46:57 +0200 |
parents | a28b7832203a |
children |
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/* * Copyright (c) 2014, 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 DisableResizePLAB * @key gc * @bug 8060467 * @author filipp.zhinkin@oracle.com, john.coomes@oracle.com * @summary Run CMS with PLAB resizing disabled and a small OldPLABSize * @run main/othervm -XX:+UseConcMarkSweepGC -XX:-ResizePLAB -XX:OldPLABSize=1k -Xmx256m -XX:+PrintGCDetails DisableResizePLAB */ public class DisableResizePLAB { public static void main(String args[]) throws Exception { Object garbage[] = new Object[1_000]; for (int i = 0; i < garbage.length; i++) { garbage[i] = new byte[0]; } long startTime = System.currentTimeMillis(); while (System.currentTimeMillis() - startTime < 10_000) { Object o = new byte[1024]; } } }