author | mchernov |
Mon, 31 Oct 2016 18:18:05 +0300 | |
changeset 42083 | 24fbf2db5efe |
parent 42021 | 390db590f103 |
child 42585 | 570f4b5312af |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 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 utils.*; |
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/* |
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* @test |
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* @summary Test checks output displayed with jstat -gc. |
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* Test scenario: |
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* tests forces debuggee application eat ~70% of heap and runs jstat. |
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* jstat should show that ~70% of heap is utilized (OC/OU ~= 70%). |
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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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* @ignore 8168396 |
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* @run main/othervm -XX:+UsePerfData -Xmx128M -XX:MaxMetaspaceSize=128M GcTest02 |
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*/ |
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public class GcTest02 { |
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private final static float targetMemoryUsagePercent = 0.7f; |
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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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JstatGcTool jstatGcTool = new JstatGcTool(ProcessHandle.current().getPid()); |
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// Run once and get the results asserting that they are reasonable |
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JstatGcResults measurement1 = jstatGcTool.measure(); |
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measurement1.assertConsistency(); |
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GcProvoker gcProvoker = GcProvoker.createGcProvoker(); |
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// Eat metaspace and heap then run the tool again and get the results asserting that they are reasonable |
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gcProvoker.eatMetaspaceAndHeap(targetMemoryUsagePercent); |
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JstatGcResults measurement2 = jstatGcTool.measure(); |
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measurement2.assertConsistency(); |
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// Assert that space has been utilized acordingly |
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JstatResults.assertSpaceUtilization(measurement2, targetMemoryUsagePercent); |
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} |
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} |