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comparison test/gc/concurrentMarkSweep/DisableResizePLAB.java @ 21824:f3ffb37f88a6

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Merge
author asaha
date Mon, 01 Dec 2014 11:29:12 -0800
parents a28b7832203a
children
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21822:b7e8193d0b53 21824:f3ffb37f88a6
1 /*
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test DisableResizePLAB
26 * @key gc
27 * @bug 8060467
28 * @author filipp.zhinkin@oracle.com, john.coomes@oracle.com
29 * @summary Run CMS with PLAB resizing disabled and a small OldPLABSize
30 * @run main/othervm -XX:+UseConcMarkSweepGC -XX:-ResizePLAB -XX:OldPLABSize=1k -Xmx256m -XX:+PrintGCDetails DisableResizePLAB
31 */
32
33 public class DisableResizePLAB {
34 public static void main(String args[]) throws Exception {
35 Object garbage[] = new Object[1_000];
36 for (int i = 0; i < garbage.length; i++) {
37 garbage[i] = new byte[0];
38 }
39 long startTime = System.currentTimeMillis();
40 while (System.currentTimeMillis() - startTime < 10_000) {
41 Object o = new byte[1024];
42 }
43 }
44 }