Mercurial > jdk8-mips64-public > hotspot / annotate
test/runtime/NMT/ReleaseCommittedMemory.java@ac12996df59b (annotated)
test/runtime/NMT/ReleaseCommittedMemory.java
Wed, 27 Aug 2014 08:35:03 -0400
- author
- zgu
- date
- Wed, 27 Aug 2014 08:35:03 -0400
- changeset 7075
- ac12996df59b
- parent 0
- f90c822e73f8
- child 7110
- 6640f982c1be
- permissions
- -rw-r--r--
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>
| aoqi@0 | 1 | /* |
| zgu@7075 | 2 | * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | */ |
| aoqi@0 | 23 | |
| aoqi@0 | 24 | /* |
| aoqi@0 | 25 | * @test |
| aoqi@0 | 26 | * @bug 8013120 |
| aoqi@0 | 27 | * @summary Release committed memory and make sure NMT handles it correctly |
| aoqi@0 | 28 | * @key nmt regression |
| aoqi@0 | 29 | * @library /testlibrary /testlibrary/whitebox |
| aoqi@0 | 30 | * @build ReleaseCommittedMemory |
| zgu@7075 | 31 | * @ignore |
| aoqi@0 | 32 | * @run main ClassFileInstaller sun.hotspot.WhiteBox |
| aoqi@0 | 33 | * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ReleaseCommittedMemory |
| aoqi@0 | 34 | */ |
| aoqi@0 | 35 | |
| aoqi@0 | 36 | import sun.hotspot.WhiteBox; |
| aoqi@0 | 37 | |
| aoqi@0 | 38 | public class ReleaseCommittedMemory { |
| aoqi@0 | 39 | |
| aoqi@0 | 40 | public static void main(String args[]) throws Exception { |
| aoqi@0 | 41 | WhiteBox wb = WhiteBox.getWhiteBox(); |
| aoqi@0 | 42 | long reserveSize = 256 * 1024; |
| aoqi@0 | 43 | long addr; |
| aoqi@0 | 44 | |
| aoqi@0 | 45 | addr = wb.NMTReserveMemory(reserveSize); |
| aoqi@0 | 46 | wb.NMTCommitMemory(addr, 128*1024); |
| aoqi@0 | 47 | wb.NMTReleaseMemory(addr, reserveSize); |
| aoqi@0 | 48 | } |
| aoqi@0 | 49 | } |
| aoqi@0 | 50 |
