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annotate test/runtime/NMT/ReleaseCommittedMemory.java @ 20361:ac12996df59b

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8044140: Create NMT (Native Memory Tracking) tests for NMT2 Summary: Create new/modify existing tests for NMT2, which is an internal redesign to address scalability issues in the first implementation. Reviewed-by: ctornqvi, zgu Contributed-by: George Triantafillou <george.triantafillou@oracle.com>
author zgu
date Wed, 27 Aug 2014 08:35:03 -0400
parents c18152e0554e
children 6640f982c1be
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1 /*
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2 * Copyright (c) 2013, 2014, 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
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26 * @bug 8013120
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27 * @summary Release committed memory and make sure NMT handles it correctly
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28 * @key nmt regression
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29 * @library /testlibrary /testlibrary/whitebox
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30 * @build ReleaseCommittedMemory
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31 * @ignore
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32 * @run main ClassFileInstaller sun.hotspot.WhiteBox
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33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ReleaseCommittedMemory
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34 */
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36 import sun.hotspot.WhiteBox;
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38 public class ReleaseCommittedMemory {
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40 public static void main(String args[]) throws Exception {
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41 WhiteBox wb = WhiteBox.getWhiteBox();
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42 long reserveSize = 256 * 1024;
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43 long addr;
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45 addr = wb.NMTReserveMemory(reserveSize);
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46 wb.NMTCommitMemory(addr, 128*1024);
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47 wb.NMTReleaseMemory(addr, reserveSize);
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48 }
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49 }
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