4499N/A/*
4499N/A * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
4499N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4499N/A *
4499N/A * This code is free software; you can redistribute it and/or modify it
4499N/A * under the terms of the GNU General Public License version 2 only, as
4499N/A * published by the Free Software Foundation.
4499N/A *
4499N/A * This code is distributed in the hope that it will be useful, but WITHOUT
4499N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
4499N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
4499N/A * version 2 for more details (a copy is included in the LICENSE file that
4499N/A * accompanied this code).
4499N/A *
4499N/A * You should have received a copy of the GNU General Public License version
4499N/A * 2 along with this work; if not, write to the Free Software Foundation,
4499N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
4499N/A *
4499N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
4499N/A * or visit www.oracle.com if you need additional information or have any
4499N/A * questions.
4499N/A */
4499N/A
4499N/A/*
4499N/A * @test
4499N/A * @bug 8013120
4499N/A * @summary Release committed memory and make sure NMT handles it correctly
4499N/A * @key nmt regression
4499N/A * @library /testlibrary /testlibrary/whitebox
4499N/A * @build ReleaseCommittedMemory
4499N/A * @run main ClassFileInstaller sun.hotspot.WhiteBox
4499N/A * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ReleaseCommittedMemory
4499N/A */
4499N/A
4499N/Aimport sun.hotspot.WhiteBox;
4499N/A
4499N/Apublic class ReleaseCommittedMemory {
4499N/A
4499N/A public static void main(String args[]) throws Exception {
4499N/A WhiteBox wb = WhiteBox.getWhiteBox();
4499N/A long reserveSize = 256 * 1024;
4499N/A long addr;
4499N/A
4499N/A addr = wb.NMTReserveMemory(reserveSize);
4499N/A wb.NMTCommitMemory(addr, 128*1024);
4499N/A wb.NMTReleaseMemory(addr, reserveSize);
4499N/A wb.NMTWaitForDataMerge();
4499N/A }
4499N/A}
4499N/A