author | pliden |
Tue, 12 Jun 2018 17:40:28 +0200 | |
changeset 50525 | 767cdb97f103 |
parent 47216 | 71c04702a3d5 |
child 52925 | 9c18c9d839d3 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 2017, 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 utils.*; |
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/* |
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* @test |
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* @summary Test checks the consistency of the output |
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* displayed with jstat -gccapacity. |
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* @requires vm.gc != "Z" |
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* @modules java.base/jdk.internal.misc |
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* @library /test/lib |
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* @library ../share |
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* @requires vm.opt.ExplicitGCInvokesConcurrent != true |
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* @run main/othervm -XX:+UsePerfData -Xmx128M GcCapacityTest |
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*/ |
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public class GcCapacityTest { |
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public static void main(String[] args) throws Exception { |
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// We will be running "jstat -gc" tool |
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JstatGcCapacityTool jstatGcTool = new JstatGcCapacityTool(ProcessHandle.current().pid()); |
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// Run once and get the results asserting that they are reasonable |
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JstatGcCapacityResults measurement1 = jstatGcTool.measure(); |
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measurement1.assertConsistency(); |
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// Provoke a gc and verify the changed values |
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GcProvoker gcProvoker = new GcProvoker(); |
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gcProvoker.provokeGc(); |
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JstatGcCapacityResults measurement2 = jstatGcTool.measure(); |
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measurement2.assertConsistency(); |
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// Assert that the GC events count has increased |
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JstatResults.assertGCEventsIncreased(measurement1, measurement2); |
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// Provoke a gc again and verify the changed values |
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gcProvoker.provokeGc(); |
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JstatGcCapacityResults measurement3 = jstatGcTool.measure(); |
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measurement3.assertConsistency(); |
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// Assert that the GC events count has increased |
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JstatResults.assertGCEventsIncreased(measurement1, measurement2); |
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} |
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} |