author | jmasa |
Fri, 10 Jun 2016 09:22:09 -0700 | |
changeset 39270 | 9b12d5739295 |
child 40631 | ed82623d7831 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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import jdk.test.lib.process.ProcessTools; |
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import jdk.test.lib.process.OutputAnalyzer; |
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import jdk.test.lib.Asserts; |
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import sun.hotspot.WhiteBox; |
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/* @test TestMetaspaceCMSCancel |
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* @bug 8026752 |
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* @summary Tests cancel of CMS concurrent cycle for Metaspace after a full GC |
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* @library /testlibrary /test/lib /test/lib/share/classes |
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* @modules java.base/jdk.internal.misc |
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* @build TestMetaspaceCMSCancel |
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* @run main ClassFileInstaller sun.hotspot.WhiteBox |
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* @run main/othervm TestMetaspaceCMSCancel |
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*/ |
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public class TestMetaspaceCMSCancel { |
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public static void main(String[] args) throws Exception { |
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// Set a small MetaspaceSize so that a CMS concurrent collection will be |
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// scheduled. Set CMSWaitDuration to 5s so that the concurrent collection |
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// start may be delayed. It does not guarantee 5s before the start of the |
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// concurrent collection but does increase the probability that it will |
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// be started later. System.gc() is used to invoke a full collection. Set |
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// ExplicitGCInvokesConcurrent to off so it is a STW collection. |
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ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-Xbootclasspath/a:.", |
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"-XX:+UnlockDiagnosticVMOptions", |
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"-XX:+WhiteBoxAPI", |
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"-XX:+UseConcMarkSweepGC", |
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"-XX:MetaspaceSize=2m", |
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"-XX:CMSWaitDuration=5000", |
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"-XX:-ExplicitGCInvokesConcurrent", |
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"-Xlog:gc*=debug", |
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MetaspaceGCTest.class.getName()); |
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OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
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output.shouldNotContain("Concurrent Reset"); |
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output.shouldHaveExitValue(0); |
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} |
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static class MetaspaceGCTest { |
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public static void main(String [] args) { |
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WhiteBox wb = WhiteBox.getWhiteBox(); |
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System.gc(); |
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Asserts.assertFalse(wb.metaspaceShouldConcurrentCollect()); |
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} |
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} |
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} |