Mercurial > hg > truffle
view test/runtime/NMT/ReleaseCommittedMemory.java @ 13053:9d8b29a0548c
8027237: New tests on ReservedSpace/VirtualSpace classes
Summary: Three tests added: 1) test stressing VirtualSpace by resizing it constantly 2) test running unit tests in several threads 3) test checking protected area in ReservedHeapSpace class
Reviewed-by: stefank, zgu
Contributed-by: aleksey.timofeev@oracle.com
author | mgerdin |
---|---|
date | Fri, 08 Nov 2013 16:48:21 +0100 |
parents | c18152e0554e |
children | ac12996df59b |
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/* * Copyright (c) 2013, 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 * @bug 8013120 * @summary Release committed memory and make sure NMT handles it correctly * @key nmt regression * @library /testlibrary /testlibrary/whitebox * @build ReleaseCommittedMemory * @run main ClassFileInstaller sun.hotspot.WhiteBox * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ReleaseCommittedMemory */ import sun.hotspot.WhiteBox; public class ReleaseCommittedMemory { public static void main(String args[]) throws Exception { WhiteBox wb = WhiteBox.getWhiteBox(); long reserveSize = 256 * 1024; long addr; addr = wb.NMTReserveMemory(reserveSize); wb.NMTCommitMemory(addr, 128*1024); wb.NMTReleaseMemory(addr, reserveSize); wb.NMTWaitForDataMerge(); } }