1 /*
2 * Copyright (c) 2003, 2015, 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 String name;
80 StringCounter method;
81 LongCounter type;
82 LongCounter compiles;
83 LongCounter time;
84 CompilerThreadInfo(String bname, int index) {
85 String basename = bname + "." + index + ".";
86 this.name = bname + "-" + index;
87 this.method = (StringCounter) lookup(basename + "method");
88 this.type = (LongCounter) lookup(basename + "type");
89 this.compiles = (LongCounter) lookup(basename + "compiles");
90 this.time = (LongCounter) lookup(basename + "time");
91 }
92
93 @SuppressWarnings("deprecation")
94 CompilerThreadStat getCompilerThreadStat() {
95 MethodInfo minfo = new MethodInfo(method.stringValue(),
96 (int) type.longValue(),
97 -1);
98 return new CompilerThreadStat(name,
99 compiles.longValue(),
100 time.longValue(),
101 minfo);
102 }
103 }
104 private List<CompilerThreadInfo> threads;
105 private int numActiveThreads; // number of active compiler threads
106
107 private Map<String, Counter> counters;
108 private Counter lookup(String name) {
109 Counter c = null;
110
111 // Only one counter exists with the specified name in the
112 // current implementation. We first look up in the SUN_CI namespace
113 // since most counters are in SUN_CI namespace.
114
115 if ((c = counters.get(SUN_CI + name)) != null) {
116 return c;
117 }
118 if ((c = counters.get(COM_SUN_CI + name)) != null) {
119 return c;
120 }
121 if ((c = counters.get(JAVA_CI + name)) != null) {
122 return c;
123 }
124
125 // FIXME: should tolerate if counter doesn't exist
126 throw new AssertionError("Counter " + name + " does not exist");
127 }
128
129 private void initCompilerCounters() {
130 // Build a tree map of the current list of performance counters
131 counters = new TreeMap<>();
132 for (Counter c: getInternalCompilerCounters()) {
133 counters.put(c.getName(), c);
134 }
135
136 compilerThreads = (LongCounter) lookup("threads");
137 totalCompiles = (LongCounter) lookup("totalCompiles");
138 totalBailouts = (LongCounter) lookup("totalBailouts");
139 totalInvalidates = (LongCounter) lookup("totalInvalidates");
140 nmethodCodeSize = (LongCounter) lookup("nmethodCodeSize");
141 nmethodSize = (LongCounter) lookup("nmethodSize");
142 lastMethod = (StringCounter) lookup("lastMethod");
143 lastSize = (LongCounter) lookup("lastSize");
144 lastType = (LongCounter) lookup("lastType");
145 lastFailedMethod = (StringCounter) lookup("lastFailedMethod");
146 lastFailedType = (LongCounter) lookup("lastFailedType");
147 lastInvalidatedMethod = (StringCounter) lookup("lastInvalidatedMethod");
148 lastInvalidatedType = (LongCounter) lookup("lastInvalidatedType");
149
150 numActiveThreads = (int) compilerThreads.longValue();
151
152 // Allocate CompilerThreadInfo for compilerThread and adaptorThread
153 threads = new ArrayList<CompilerThreadInfo>();
154
155 for (int i = 0; i < numActiveThreads; i++) {
156 if (counters.containsKey(SUN_CI + "compilerThread." + i + ".method")) {
157 threads.add(new CompilerThreadInfo("compilerThread", i));
158 }
159 }
160 }
161
162 public int getCompilerThreadCount() {
163 return numActiveThreads;
164 }
165
166 public long getTotalCompileCount() {
167 return totalCompiles.longValue();
168 }
169
170 public long getBailoutCompileCount() {
171 return totalBailouts.longValue();
172 }
173
174 public long getInvalidatedCompileCount() {
175 return totalInvalidates.longValue();
176 }
177
178 public long getCompiledMethodCodeSize() {
179 return nmethodCodeSize.longValue();
180 }
181
182 public long getCompiledMethodSize() {
183 return nmethodSize.longValue();
184 }
185
186 @Deprecated
187 public List<CompilerThreadStat> getCompilerThreadStats() {
188 List<CompilerThreadStat> list = new ArrayList<>(threads.size());
189 for (CompilerThreadInfo info : threads) {
190 list.add(info.getCompilerThreadStat());
191 }
192 return list;
193 }
194
195 public MethodInfo getLastCompile() {
196 return new MethodInfo(lastMethod.stringValue(),
197 (int) lastType.longValue(),
198 (int) lastSize.longValue());
199 }
200
201 public MethodInfo getFailedCompile() {
202 return new MethodInfo(lastFailedMethod.stringValue(),
203 (int) lastFailedType.longValue(),
204 -1);
205 }
206
207 public MethodInfo getInvalidatedCompile() {
208 return new MethodInfo(lastInvalidatedMethod.stringValue(),
209 (int) lastInvalidatedType.longValue(),
210 -1);
211 }
212
213 public java.util.List<Counter> getInternalCompilerCounters() {
214 return jvm.getInternalCounters(CI_COUNTER_NAME_PATTERN);
215 }
216 }