Mercurial > hg > graal-compiler
diff test/gc/concurrentMarkSweep/SystemGCOnForegroundCollector.java @ 10244:06ab37f08701
8013184: CMS: Call reset_after_compaction() only if a compaction has been done
Reviewed-by: mgerdin, johnc, tschatzl
author | jmasa |
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date | Wed, 08 May 2013 17:12:52 -0700 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/gc/concurrentMarkSweep/SystemGCOnForegroundCollector.java Wed May 08 17:12:52 2013 -0700 @@ -0,0 +1,67 @@ +/* + * 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 SystemGCOnForegroundCollector + * @summary CMS: Call reset_after_compaction() only if a compaction has been done + * @bug 8013184 + * @key gc + * @key regression + * @library /testlibrary + * @run main/othervm SystemGCOnForegroundCollector + * @author jon.masamitsu@oracle.com + */ + +import com.oracle.java.testlibrary.*; + +public class SystemGCOnForegroundCollector { + public static void main(String args[]) throws Exception { + + ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( + "-showversion", + "-XX:+UseConcMarkSweepGC", + "-XX:MaxTenuringThreshold=1", + "-XX:-UseCMSCompactAtFullCollection", + ThreePlusMSSystemGC.class.getName() + ); + + OutputAnalyzer output = new OutputAnalyzer(pb.start()); + + output.shouldNotContain("error"); + + output.shouldHaveExitValue(0); + } + + static class ThreePlusMSSystemGC { + public static void main(String [] args) { + // From running this test 3 System.gc() were always + // enough to see the failure but the cause of the failure + // depends on how objects are allocated in the CMS generation + // which is non-deterministic. Use 30 iterations for a more + // reliable test. + for (int i = 0; i < 30; i++) { + System.gc(); + } + } + } +}