Mercurial > hg > graal-compiler
diff test/gc/concurrentMarkSweep/DisableResizePLAB.java @ 20631:a28b7832203a
8060467: CMS: small OldPLABSize and -XX:-ResizePLAB cause assert(ResizePLAB || n_blks == OldPLABSize) failed: Error
Reviewed-by: tschatzl, jmasa, kbarrett
author | jcoomes |
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date | Fri, 07 Nov 2014 15:34:33 -0800 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/gc/concurrentMarkSweep/DisableResizePLAB.java Fri Nov 07 15:34:33 2014 -0800 @@ -0,0 +1,44 @@ +/* +* 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]; + } + } +}