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| 1 | +/* | |
| 2 | + * Copyright (c) 2003, 2008, 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. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package sun.management; | |
| 27 | + | |
| 28 | +import java.util.regex.*; | |
| 29 | +import java.util.List; | |
| 30 | +import java.util.ListIterator; | |
| 31 | +import java.util.Iterator; | |
| 32 | +import java.util.ArrayList; | |
| 33 | +import java.util.Map; | |
| 34 | +import java.util.TreeMap; | |
| 35 | +import sun.management.counter.*; | |
| 36 | + | |
| 37 | +/** | |
| 38 | + * Implementation class of HotspotCompilationMBean interface. | |
| 39 | + * | |
| 40 | + * Internal, uncommitted management interface for Hotspot compilation | |
| 41 | + * system. | |
| 42 | + * | |
| 43 | + */ | |
| 44 | +class HotspotCompilation | |
| 45 | + implements HotspotCompilationMBean { | |
| 46 | + | |
| 47 | + private VMManagement jvm; | |
| 48 | + | |
| 49 | + /** | |
| 50 | + * Constructor of HotspotRuntime class. | |
| 51 | + */ | |
| 52 | + HotspotCompilation(VMManagement vm) { | |
| 53 | + jvm = vm; | |
| 54 | + initCompilerCounters(); | |
| 55 | + } | |
| 56 | + | |
| 57 | + // Performance counter support | |
| 58 | + private static final String JAVA_CI = "java.ci."; | |
| 59 | + private static final String COM_SUN_CI = "com.sun.ci."; | |
| 60 | + private static final String SUN_CI = "sun.ci."; | |
| 61 | + private static final String CI_COUNTER_NAME_PATTERN = | |
| 62 | + JAVA_CI + "|" + COM_SUN_CI + "|" + SUN_CI; | |
| 63 | + | |
| 64 | + private LongCounter compilerThreads; | |
| 65 | + private LongCounter totalCompiles; | |
| 66 | + private LongCounter totalBailouts; | |
| 67 | + private LongCounter totalInvalidates; | |
| 68 | + private LongCounter nmethodCodeSize; | |
| 69 | + private LongCounter nmethodSize; | |
| 70 | + private StringCounter lastMethod; | |
| 71 | + private LongCounter lastSize; | |
| 72 | + private LongCounter lastType; | |
| 73 | + private StringCounter lastFailedMethod; | |
| 74 | + private LongCounter lastFailedType; | |
| 75 | + private StringCounter lastInvalidatedMethod; | |
| 76 | + private LongCounter lastInvalidatedType; | |
| 77 | + | |
| 78 | + private class CompilerThreadInfo { | |
| 79 | + int index; | |
| 80 | + String name; | |
| 81 | + StringCounter method; | |
| 82 | + LongCounter type; | |
| 83 | + LongCounter compiles; | |
| 84 | + LongCounter time; | |
| 85 | + CompilerThreadInfo(String bname, int index) { | |
| 86 | + String basename = bname + "." + index + "."; | |
| 87 | + this.name = bname + "-" + index; | |
| 88 | + this.method = (StringCounter) lookup(basename + "method"); | |
| 89 | + this.type = (LongCounter) lookup(basename + "type"); | |
| 90 | + this.compiles = (LongCounter) lookup(basename + "compiles"); | |
| 91 | + this.time = (LongCounter) lookup(basename + "time"); | |
| 92 | + } | |
| 93 | + CompilerThreadInfo(String bname) { | |
| 94 | + String basename = bname + "."; | |
| 95 | + this.name = bname; | |
| 96 | + this.method = (StringCounter) lookup(basename + "method"); | |
| 97 | + this.type = (LongCounter) lookup(basename + "type"); | |
| 98 | + this.compiles = (LongCounter) lookup(basename + "compiles"); | |
| 99 | + this.time = (LongCounter) lookup(basename + "time"); | |
| 100 | + } | |
| 101 | + | |
| 102 | + CompilerThreadStat getCompilerThreadStat() { | |
| 103 | + MethodInfo minfo = new MethodInfo(method.stringValue(), | |
| 104 | + (int) type.longValue(), | |
| 105 | + -1); | |
| 106 | + return new CompilerThreadStat(name, | |
| 107 | + compiles.longValue(), | |
| 108 | + time.longValue(), | |
| 109 | + minfo); | |
| 110 | + } | |
| 111 | + } | |
| 112 | + private CompilerThreadInfo[] threads; | |
| 113 | + private int numActiveThreads; // number of active compiler threads | |
| 114 | + | |
| 115 | + private Map<String, Counter> counters; | |
| 116 | + private Counter lookup(String name) { | |
| 117 | + Counter c = null; | |
| 118 | + | |
| 119 | + // Only one counter exists with the specified name in the | |
| 120 | + // current implementation. We first look up in the SUN_CI namespace | |
| 121 | + // since most counters are in SUN_CI namespace. | |
| 122 | + | |
| 123 | + if ((c = (Counter) counters.get(SUN_CI + name)) != null) { | |
| 124 | + return c; | |
| 125 | + } | |
| 126 | + if ((c = (Counter) counters.get(COM_SUN_CI + name)) != null) { | |
| 127 | + return c; | |
| 128 | + } | |
| 129 | + if ((c = (Counter) counters.get(JAVA_CI + name)) != null) { | |
| 130 | + return c; | |
| 131 | + } | |
| 132 | + | |
| 133 | + // FIXME: should tolerate if counter doesn't exist | |
| 134 | + throw new AssertionError("Counter " + name + " does not exist"); | |
| 135 | + } | |
| 136 | + | |
| 137 | + private void initCompilerCounters() { | |
| 138 | + // Build a tree map of the current list of performance counters | |
| 139 | + ListIterator iter = getInternalCompilerCounters().listIterator(); | |
| 140 | + counters = new TreeMap<String, Counter>(); | |
| 141 | + while (iter.hasNext()) { | |
| 142 | + Counter c = (Counter) iter.next(); | |
| 143 | + counters.put(c.getName(), c); | |
| 144 | + } | |
| 145 | + | |
| 146 | + compilerThreads = (LongCounter) lookup("threads"); | |
| 147 | + totalCompiles = (LongCounter) lookup("totalCompiles"); | |
| 148 | + totalBailouts = (LongCounter) lookup("totalBailouts"); | |
| 149 | + totalInvalidates = (LongCounter) lookup("totalInvalidates"); | |
| 150 | + nmethodCodeSize = (LongCounter) lookup("nmethodCodeSize"); | |
| 151 | + nmethodSize = (LongCounter) lookup("nmethodSize"); | |
| 152 | + lastMethod = (StringCounter) lookup("lastMethod"); | |
| 153 | + lastSize = (LongCounter) lookup("lastSize"); | |
| 154 | + lastType = (LongCounter) lookup("lastType"); | |
| 155 | + lastFailedMethod = (StringCounter) lookup("lastFailedMethod"); | |
| 156 | + lastFailedType = (LongCounter) lookup("lastFailedType"); | |
| 157 | + lastInvalidatedMethod = (StringCounter) lookup("lastInvalidatedMethod"); | |
| 158 | + lastInvalidatedType = (LongCounter) lookup("lastInvalidatedType"); | |
| 159 | + | |
| 160 | + numActiveThreads = (int) compilerThreads.longValue(); | |
| 161 | + | |
| 162 | + // Allocate CompilerThreadInfo for compilerThread and adaptorThread | |
| 163 | + threads = new CompilerThreadInfo[numActiveThreads+1]; | |
| 164 | + | |
| 165 | + // AdaptorThread has index 0 | |
| 166 | + if (counters.containsKey(SUN_CI + "adapterThread.compiles")) { | |
| 167 | + threads[0] = new CompilerThreadInfo("adapterThread", 0); | |
| 168 | + numActiveThreads++; | |
| 169 | + } else { | |
| 170 | + threads[0] = null; | |
| 171 | + } | |
| 172 | + | |
| 173 | + for (int i = 1; i < threads.length; i++) { | |
| 174 | + threads[i] = new CompilerThreadInfo("compilerThread", i-1); | |
| 175 | + } | |
| 176 | + } | |
| 177 | + | |
| 178 | + public int getCompilerThreadCount() { | |
| 179 | + return numActiveThreads; | |
| 180 | + } | |
| 181 | + | |
| 182 | + public long getTotalCompileCount() { | |
| 183 | + return totalCompiles.longValue(); | |
| 184 | + } | |
| 185 | + | |
| 186 | + public long getBailoutCompileCount() { | |
| 187 | + return totalBailouts.longValue(); | |
| 188 | + } | |
| 189 | + | |
| 190 | + public long getInvalidatedCompileCount() { | |
| 191 | + return totalInvalidates.longValue(); | |
| 192 | + } | |
| 193 | + | |
| 194 | + public long getCompiledMethodCodeSize() { | |
| 195 | + return nmethodCodeSize.longValue(); | |
| 196 | + } | |
| 197 | + | |
| 198 | + public long getCompiledMethodSize() { | |
| 199 | + return nmethodSize.longValue(); | |
| 200 | + } | |
| 201 | + | |
| 202 | + public java.util.List<CompilerThreadStat> getCompilerThreadStats() { | |
| 203 | + List<CompilerThreadStat> list = new ArrayList<CompilerThreadStat>(threads.length); | |
| 204 | + int i = 0; | |
| 205 | + if (threads[0] == null) { | |
| 206 | + // no adaptor thread | |
| 207 | + i = 1; | |
| 208 | + } | |
| 209 | + for (; i < threads.length; i++) { | |
| 210 | + list.add(threads[i].getCompilerThreadStat()); | |
| 211 | + } | |
| 212 | + return list; | |
| 213 | + } | |
| 214 | + | |
| 215 | + public MethodInfo getLastCompile() { | |
| 216 | + return new MethodInfo(lastMethod.stringValue(), | |
| 217 | + (int) lastType.longValue(), | |
| 218 | + (int) lastSize.longValue()); | |
| 219 | + } | |
| 220 | + | |
| 221 | + public MethodInfo getFailedCompile() { | |
| 222 | + return new MethodInfo(lastFailedMethod.stringValue(), | |
| 223 | + (int) lastFailedType.longValue(), | |
| 224 | + -1); | |
| 225 | + } | |
| 226 | + | |
| 227 | + public MethodInfo getInvalidatedCompile() { | |
| 228 | + return new MethodInfo(lastInvalidatedMethod.stringValue(), | |
| 229 | + (int) lastInvalidatedType.longValue(), | |
| 230 | + -1); | |
| 231 | + } | |
| 232 | + | |
| 233 | + public java.util.List<Counter> getInternalCompilerCounters() { | |
| 234 | + return jvm.getInternalCounters(CI_COUNTER_NAME_PATTERN); | |
| 235 | + } | |
| 236 | +} | |