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annotate 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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1 /*
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23
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24 /*
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25 * @test TestUseCompressedOopsErgo
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26 * @key gc
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27 * @bug 8010722
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28 * @summary Tests ergonomics for UseCompressedOops.
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29 * @library /testlibrary /testlibrary/whitebox
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30 * @build TestUseCompressedOopsErgo TestUseCompressedOopsErgoTools
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31 * @run main ClassFileInstaller sun.hotspot.WhiteBox
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32 * @run main/othervm TestUseCompressedOopsErgo -XX:+UseG1GC
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33 * @run main/othervm TestUseCompressedOopsErgo -XX:+UseParallelGC
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34 * @run main/othervm TestUseCompressedOopsErgo -XX:+UseParallelGC -XX:-UseParallelOldGC
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35 * @run main/othervm TestUseCompressedOopsErgo -XX:+UseConcMarkSweepGC
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36 * @run main/othervm TestUseCompressedOopsErgo -XX:+UseSerialGC
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37 */
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38
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39 public class TestUseCompressedOopsErgo {
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40
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41 public static void main(String args[]) throws Exception {
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42 if (!TestUseCompressedOopsErgoTools.is64bitVM()) {
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43 // this test is relevant for 64 bit VMs only
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44 return;
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45 }
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46 final String[] gcFlags = args;
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47 TestUseCompressedOopsErgoTools.checkCompressedOopsErgo(gcFlags);
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48 }
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49 }
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50