author | sundar |
Fri, 22 Aug 2014 22:50:38 +0530 | |
changeset 26238 | 829648e12198 |
parent 20001 | 7446501f55bc |
child 29678 | dd2f3932c21e |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2013, 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 java.util.List; |
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import java.lang.management.*; |
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import com.oracle.java.testlibrary.*; |
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import static com.oracle.java.testlibrary.Asserts.*; |
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/* @test TestMetaspaceMemoryPool |
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* @bug 8000754 |
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* @summary Tests that a MemoryPoolMXBeans is created for metaspace and that a |
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* MemoryManagerMXBean is created. |
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* @library /testlibrary |
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* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops TestMetaspaceMemoryPool |
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* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops -XX:MaxMetaspaceSize=60m TestMetaspaceMemoryPool |
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* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops -XX:+UseCompressedClassPointers TestMetaspaceMemoryPool |
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* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops -XX:+UseCompressedClassPointers -XX:CompressedClassSpaceSize=60m TestMetaspaceMemoryPool |
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*/ |
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public class TestMetaspaceMemoryPool { |
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public static void main(String[] args) { |
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verifyThatMetaspaceMemoryManagerExists(); |
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boolean isMetaspaceMaxDefined = InputArguments.containsPrefix("-XX:MaxMetaspaceSize"); |
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verifyMemoryPool(getMemoryPool("Metaspace"), isMetaspaceMaxDefined); |
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if (Platform.is64bit()) { |
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if (InputArguments.contains("-XX:+UseCompressedOops")) { |
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MemoryPoolMXBean cksPool = getMemoryPool("Compressed Class Space"); |
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verifyMemoryPool(cksPool, true); |
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} |
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} |
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} |
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private static void verifyThatMetaspaceMemoryManagerExists() { |
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List<MemoryManagerMXBean> managers = ManagementFactory.getMemoryManagerMXBeans(); |
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for (MemoryManagerMXBean manager : managers) { |
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if (manager.getName().equals("Metaspace Manager")) { |
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return; |
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} |
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} |
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throw new RuntimeException("Expected to find a metaspace memory manager"); |
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} |
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private static MemoryPoolMXBean getMemoryPool(String name) { |
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List<MemoryPoolMXBean> pools = ManagementFactory.getMemoryPoolMXBeans(); |
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for (MemoryPoolMXBean pool : pools) { |
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if (pool.getName().equals(name)) { |
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return pool; |
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} |
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} |
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throw new RuntimeException("Expected to find a memory pool with name " + name); |
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} |
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private static void verifyMemoryPool(MemoryPoolMXBean pool, boolean isMaxDefined) { |
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MemoryUsage mu = pool.getUsage(); |
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long init = mu.getInit(); |
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long used = mu.getUsed(); |
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long committed = mu.getCommitted(); |
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long max = mu.getMax(); |
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assertGTE(init, 0L); |
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assertGTE(used, init); |
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assertGTE(committed, used); |
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if (isMaxDefined) { |
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assertGTE(max, committed); |
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} else { |
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assertEQ(max, -1L); |
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} |
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} |
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} |