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comparison test/gc/arguments/TestUseCompressedOopsErgo.java @ 12233:40136aa2cdb1

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8010722: assert: failed: heap size is too big for compressed oops Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation. Reviewed-by: stefank, dholmes
author tschatzl
date Wed, 11 Sep 2013 16:25:02 +0200
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12230:040895ec3920 12233:40136aa2cdb1
1 /*
2 * Copyright (c) 2013, 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 TestUseCompressedOopsErgo
26 * @key gc
27 * @bug 8010722
28 * @summary Tests ergonomics for UseCompressedOops.
29 * @library /testlibrary /testlibrary/whitebox
30 * @build TestUseCompressedOopsErgo TestUseCompressedOopsErgoTools
31 * @run main ClassFileInstaller sun.hotspot.WhiteBox
32 * @run main/othervm TestUseCompressedOopsErgo -XX:+UseG1GC
33 * @run main/othervm TestUseCompressedOopsErgo -XX:+UseParallelGC
34 * @run main/othervm TestUseCompressedOopsErgo -XX:+UseParallelGC -XX:-UseParallelOldGC
35 * @run main/othervm TestUseCompressedOopsErgo -XX:+UseConcMarkSweepGC
36 * @run main/othervm TestUseCompressedOopsErgo -XX:+UseSerialGC
37 */
38
39 public class TestUseCompressedOopsErgo {
40
41 public static void main(String args[]) throws Exception {
42 if (!TestUseCompressedOopsErgoTools.is64bitVM()) {
43 // this test is relevant for 64 bit VMs only
44 return;
45 }
46 final String[] gcFlags = args;
47 TestUseCompressedOopsErgoTools.checkCompressedOopsErgo(gcFlags);
48 }
49 }
50