Mercurial > hg > truffle
annotate test/gc/metaspace/TestPerfCountersAndMemoryPools.java @ 18711:88c280297bd2
put GeneratedSourcesSha1 into com.oracle.graal.hotspot.sourcegen package
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 18 Dec 2014 13:10:23 +1000 |
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1 /* |
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 import java.util.List; |
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25 import java.lang.management.*; |
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26 |
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27 import com.oracle.java.testlibrary.*; |
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28 import static com.oracle.java.testlibrary.Asserts.*; |
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29 |
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30 /* @test TestPerfCountersAndMemoryPools |
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31 * @bug 8023476 |
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32 * @library /testlibrary |
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33 * @summary Tests that a MemoryPoolMXBeans and PerfCounters for metaspace |
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34 * report the same data. |
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35 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops -XX:-UseCompressedKlassPointers -XX:+UseSerialGC -XX:+UsePerfData -Xint TestPerfCountersAndMemoryPools |
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36 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops -XX:+UseCompressedKlassPointers -XX:+UseSerialGC -XX:+UsePerfData -Xint TestPerfCountersAndMemoryPools |
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37 */ |
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38 public class TestPerfCountersAndMemoryPools { |
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39 public static void main(String[] args) throws Exception { |
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40 checkMemoryUsage("Metaspace", "sun.gc.metaspace"); |
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41 |
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42 if (InputArguments.contains("-XX:+UseCompressedKlassPointers") && Platform.is64bit()) { |
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43 checkMemoryUsage("Compressed Class Space", "sun.gc.compressedclassspace"); |
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44 } |
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45 } |
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46 |
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47 private static MemoryPoolMXBean getMemoryPool(String memoryPoolName) { |
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48 List<MemoryPoolMXBean> pools = ManagementFactory.getMemoryPoolMXBeans(); |
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49 for (MemoryPoolMXBean pool : pools) { |
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50 if (pool.getName().equals(memoryPoolName)) { |
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51 return pool; |
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52 } |
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53 } |
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54 |
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55 throw new RuntimeException("Excpted to find a memory pool with name " + |
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56 memoryPoolName); |
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57 } |
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58 |
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59 private static void checkMemoryUsage(String memoryPoolName, String perfNS) |
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60 throws Exception { |
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61 MemoryPoolMXBean pool = getMemoryPool(memoryPoolName); |
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62 |
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63 // Must do a GC to update performance counters |
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64 System.gc(); |
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65 assertEQ(getMinCapacity(perfNS), pool.getUsage().getInit()); |
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66 |
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67 // Must do a second GC to update the perfomance counters again, since |
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68 // the call pool.getUsage().getInit() could have allocated some |
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69 // metadata. |
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70 System.gc(); |
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71 assertEQ(getUsed(perfNS), pool.getUsage().getUsed()); |
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72 assertEQ(getCapacity(perfNS), pool.getUsage().getCommitted()); |
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73 } |
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74 |
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75 private static long getMinCapacity(String ns) throws Exception { |
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76 return PerfCounters.findByName(ns + ".minCapacity").longValue(); |
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77 } |
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78 |
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79 private static long getCapacity(String ns) throws Exception { |
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80 return PerfCounters.findByName(ns + ".capacity").longValue(); |
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81 } |
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82 |
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83 private static long getUsed(String ns) throws Exception { |
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84 return PerfCounters.findByName(ns + ".used").longValue(); |
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85 } |
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86 } |