Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: test/gc/metaspace/TestMetaspacePerfCounters.java
test/gc/metaspace/TestMetaspacePerfCounters.java
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| 1 /* | |
| 2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 */ | |
| 23 | |
| 24 import java.util.List; | |
| 25 import java.util.ArrayList; | |
| 26 | |
| 27 import com.oracle.java.testlibrary.*; | |
| 28 import static com.oracle.java.testlibrary.Asserts.*; | |
| 29 | |
| 30 /* @test TestMetaspacePerfCounters | |
| 31 * @bug 8014659 | |
| 32 * @library /testlibrary | |
| 33 * @summary Tests that performance counters for metaspace and compressed class | |
| 34 * space exists and works. | |
| 35 * | |
| 36 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops -XX:-UseCompressedClassPointers -XX:+UsePerfData -XX:+UseSerialGC TestMetaspacePerfCounters | |
| 37 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops -XX:-UseCompressedClassPointers -XX:+UsePerfData -XX:+UseParallelGC -XX:+UseParallelOldGC TestMetaspacePerfCounters | |
| 38 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops -XX:-UseCompressedClassPointers -XX:+UsePerfData -XX:+UseG1GC TestMetaspacePerfCounters | |
| 39 * | |
| 40 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops -XX:+UseCompressedClassPointers -XX:+UsePerfData -XX:+UseSerialGC TestMetaspacePerfCounters | |
| 41 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops -XX:+UseCompressedClassPointers -XX:+UsePerfData -XX:+UseParallelGC -XX:+UseParallelOldGC TestMetaspacePerfCounters | |
| 42 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops -XX:+UseCompressedClassPointers -XX:+UsePerfData -XX:+UseG1GC TestMetaspacePerfCounters | |
| 43 */ | |
| 44 public class TestMetaspacePerfCounters { | |
| 45 public static Class fooClass = null; | |
| 46 private static final String[] counterNames = {"minCapacity", "maxCapacity", "capacity", "used"}; | |
| 47 | |
| 48 public static void main(String[] args) throws Exception { | |
| 49 String metaspace = "sun.gc.metaspace"; | |
| 50 String ccs = "sun.gc.compressedclassspace"; | |
| 51 | |
| 52 checkPerfCounters(metaspace); | |
| 53 | |
| 54 if (isUsingCompressedClassPointers()) { | |
| 55 checkPerfCounters(ccs); | |
| 56 checkUsedIncreasesWhenLoadingClass(ccs); | |
| 57 } else { | |
| 58 checkEmptyPerfCounters(ccs); | |
| 59 checkUsedIncreasesWhenLoadingClass(metaspace); | |
| 60 } | |
| 61 } | |
| 62 | |
| 63 private static void checkPerfCounters(String ns) throws Exception { | |
| 64 long minCapacity = getMinCapacity(ns); | |
| 65 long maxCapacity = getMaxCapacity(ns); | |
| 66 long capacity = getCapacity(ns); | |
| 67 long used = getUsed(ns); | |
| 68 | |
| 69 assertGTE(minCapacity, 0L); | |
| 70 assertGTE(used, minCapacity); | |
| 71 assertGTE(capacity, used); | |
| 72 assertGTE(maxCapacity, capacity); | |
| 73 } | |
| 74 | |
| 75 private static void checkEmptyPerfCounters(String ns) throws Exception { | |
| 76 for (PerfCounter counter : countersInNamespace(ns)) { | |
| 77 String msg = "Expected " + counter.getName() + " to equal 0"; | |
| 78 assertEQ(counter.longValue(), 0L, msg); | |
| 79 } | |
| 80 } | |
| 81 | |
| 82 private static void checkUsedIncreasesWhenLoadingClass(String ns) throws Exception { | |
| 83 long before = getUsed(ns); | |
| 84 fooClass = compileAndLoad("Foo", "public class Foo { }"); | |
| 85 System.gc(); | |
| 86 long after = getUsed(ns); | |
| 87 | |
| 88 assertGT(after, before); | |
| 89 } | |
| 90 | |
| 91 private static List<PerfCounter> countersInNamespace(String ns) throws Exception { | |
| 92 List<PerfCounter> counters = new ArrayList<>(); | |
| 93 for (String name : counterNames) { | |
| 94 counters.add(PerfCounters.findByName(ns + "." + name)); | |
| 95 } | |
| 96 return counters; | |
| 97 } | |
| 98 | |
| 99 private static Class<?> compileAndLoad(String name, String source) throws Exception { | |
| 100 byte[] byteCode = InMemoryJavaCompiler.compile(name, source); | |
| 101 return ByteCodeLoader.load(name, byteCode); | |
| 102 } | |
| 103 | |
| 104 private static boolean isUsingCompressedClassPointers() { | |
| 105 return Platform.is64bit() && InputArguments.contains("-XX:+UseCompressedClassPointers"); | |
| 106 } | |
| 107 | |
| 108 private static long getMinCapacity(String ns) throws Exception { | |
| 109 return PerfCounters.findByName(ns + ".minCapacity").longValue(); | |
| 110 } | |
| 111 | |
| 112 private static long getCapacity(String ns) throws Exception { | |
| 113 return PerfCounters.findByName(ns + ".capacity").longValue(); | |
| 114 } | |
| 115 | |
| 116 private static long getMaxCapacity(String ns) throws Exception { | |
| 117 return PerfCounters.findByName(ns + ".maxCapacity").longValue(); | |
| 118 } | |
| 119 | |
| 120 private static long getUsed(String ns) throws Exception { | |
| 121 return PerfCounters.findByName(ns + ".used").longValue(); | |
| 122 } | |
| 123 } |
