Mercurial > jdk8-mips64-public > hotspot / annotate
test/gc/concurrentMarkSweep/SystemGCOnForegroundCollector.java@b67a3f81b630 (annotated)
test/gc/concurrentMarkSweep/SystemGCOnForegroundCollector.java
Fri, 27 Jun 2014 11:07:23 +0100
- author
- coffeys
- date
- Fri, 27 Jun 2014 11:07:23 +0100
- changeset 6899
- b67a3f81b630
- parent 0
- f90c822e73f8
- permissions
- -rw-r--r--
Added tag jdk8u40-b00 for changeset 4828415ebbf1
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2013, 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 SystemGCOnForegroundCollector |
| aoqi@0 | 26 | * @summary CMS: Call reset_after_compaction() only if a compaction has been done |
| aoqi@0 | 27 | * @bug 8013184 |
| aoqi@0 | 28 | * @key gc |
| aoqi@0 | 29 | * @key regression |
| aoqi@0 | 30 | * @library /testlibrary |
| aoqi@0 | 31 | * @run main/othervm SystemGCOnForegroundCollector |
| aoqi@0 | 32 | * @author jon.masamitsu@oracle.com |
| aoqi@0 | 33 | */ |
| aoqi@0 | 34 | |
| aoqi@0 | 35 | import com.oracle.java.testlibrary.*; |
| aoqi@0 | 36 | |
| aoqi@0 | 37 | public class SystemGCOnForegroundCollector { |
| aoqi@0 | 38 | public static void main(String args[]) throws Exception { |
| aoqi@0 | 39 | |
| aoqi@0 | 40 | ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
| aoqi@0 | 41 | "-showversion", |
| aoqi@0 | 42 | "-XX:+UseConcMarkSweepGC", |
| aoqi@0 | 43 | "-XX:MaxTenuringThreshold=1", |
| aoqi@0 | 44 | "-XX:-UseCMSCompactAtFullCollection", |
| aoqi@0 | 45 | ThreePlusMSSystemGC.class.getName() |
| aoqi@0 | 46 | ); |
| aoqi@0 | 47 | |
| aoqi@0 | 48 | OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
| aoqi@0 | 49 | |
| aoqi@0 | 50 | output.shouldNotContain("error"); |
| aoqi@0 | 51 | |
| aoqi@0 | 52 | output.shouldHaveExitValue(0); |
| aoqi@0 | 53 | } |
| aoqi@0 | 54 | |
| aoqi@0 | 55 | static class ThreePlusMSSystemGC { |
| aoqi@0 | 56 | public static void main(String [] args) { |
| aoqi@0 | 57 | // From running this test 3 System.gc() were always |
| aoqi@0 | 58 | // enough to see the failure but the cause of the failure |
| aoqi@0 | 59 | // depends on how objects are allocated in the CMS generation |
| aoqi@0 | 60 | // which is non-deterministic. Use 30 iterations for a more |
| aoqi@0 | 61 | // reliable test. |
| aoqi@0 | 62 | for (int i = 0; i < 30; i++) { |
| aoqi@0 | 63 | System.gc(); |
| aoqi@0 | 64 | } |
| aoqi@0 | 65 | } |
| aoqi@0 | 66 | } |
| aoqi@0 | 67 | } |
