1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/runtime/NMT/ReleaseCommittedMemory.java Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,50 @@
1.4 +/*
1.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/*
1.28 + * @test
1.29 + * @bug 8013120
1.30 + * @summary Release committed memory and make sure NMT handles it correctly
1.31 + * @key nmt regression
1.32 + * @library /testlibrary /testlibrary/whitebox
1.33 + * @build ReleaseCommittedMemory
1.34 + * @run main ClassFileInstaller sun.hotspot.WhiteBox
1.35 + * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ReleaseCommittedMemory
1.36 + */
1.37 +
1.38 +import sun.hotspot.WhiteBox;
1.39 +
1.40 +public class ReleaseCommittedMemory {
1.41 +
1.42 + public static void main(String args[]) throws Exception {
1.43 + WhiteBox wb = WhiteBox.getWhiteBox();
1.44 + long reserveSize = 256 * 1024;
1.45 + long addr;
1.46 +
1.47 + addr = wb.NMTReserveMemory(reserveSize);
1.48 + wb.NMTCommitMemory(addr, 128*1024);
1.49 + wb.NMTReleaseMemory(addr, reserveSize);
1.50 + wb.NMTWaitForDataMerge();
1.51 + }
1.52 +}
1.53 +
