Mercurial > hg > graal-compiler
annotate agent/src/share/classes/sun/jvm/hotspot/tools/PermStat.java @ 2426:1d1603768966
7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass
Summary: Update the copyright to be 2010 on all changed files in OpenJDK
Reviewed-by: ohair
author | trims |
---|---|
date | Tue, 05 Apr 2011 14:12:31 -0700 |
parents | c18cbe5936b8 |
children | e3e363b2bf19 |
rev | line source |
---|---|
0 | 1 /* |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
337
diff
changeset
|
2 * Copyright (c) 2003, 2008, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
337
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
337
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
337
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.tools; | |
26 | |
27 import java.io.*; | |
28 import java.util.*; | |
29 | |
30 import sun.jvm.hotspot.debugger.*; | |
31 import sun.jvm.hotspot.memory.*; | |
32 import sun.jvm.hotspot.oops.*; | |
33 import sun.jvm.hotspot.runtime.*; | |
34 import sun.jvm.hotspot.tools.*; | |
35 import sun.jvm.hotspot.utilities.*; | |
36 | |
37 /** | |
38 A command line tool to print perm. generation statistics. | |
39 */ | |
40 | |
41 public class PermStat extends Tool { | |
42 boolean verbose = true; | |
43 | |
44 public static void main(String[] args) { | |
45 PermStat ps = new PermStat(); | |
46 ps.start(args); | |
47 ps.stop(); | |
48 } | |
49 | |
50 private static class ClassData { | |
51 Klass klass; | |
52 long size; | |
53 | |
54 ClassData(Klass klass, long size) { | |
55 this.klass = klass; this.size = size; | |
56 } | |
57 } | |
58 | |
59 private static class LoaderData { | |
60 long numClasses; | |
61 long classSize; | |
62 List classDetail = new ArrayList(); // List<ClassData> | |
63 } | |
64 | |
65 public void run() { | |
66 printInternStringStatistics(); | |
67 printClassLoaderStatistics(); | |
68 } | |
69 | |
70 private void printInternStringStatistics() { | |
71 class StringStat implements StringTable.StringVisitor { | |
72 private int count; | |
73 private long size; | |
74 private OopField stringValueField; | |
75 | |
76 StringStat() { | |
77 VM vm = VM.getVM(); | |
78 SystemDictionary sysDict = vm.getSystemDictionary(); | |
79 InstanceKlass strKlass = sysDict.getStringKlass(); | |
80 // String has a field named 'value' of type 'char[]'. | |
81 stringValueField = (OopField) strKlass.findField("value", "[C"); | |
82 } | |
83 | |
84 private long stringSize(Instance instance) { | |
85 // We include String content in size calculation. | |
86 return instance.getObjectSize() + | |
87 stringValueField.getValue(instance).getObjectSize(); | |
88 } | |
89 | |
90 public void visit(Instance str) { | |
91 count++; | |
92 size += stringSize(str); | |
93 } | |
94 | |
95 public void print() { | |
96 System.out.println(count + | |
97 " intern Strings occupying " + size + " bytes."); | |
98 } | |
99 } | |
100 | |
101 StringStat stat = new StringStat(); | |
102 StringTable strTable = VM.getVM().getStringTable(); | |
103 strTable.stringsDo(stat); | |
104 stat.print(); | |
105 } | |
106 | |
107 private void printClassLoaderStatistics() { | |
108 final PrintStream out = System.out; | |
109 final PrintStream err = System.err; | |
110 final Map loaderMap = new HashMap(); | |
111 // loader data for bootstrap class loader | |
112 final LoaderData bootstrapLoaderData = new LoaderData(); | |
113 if (verbose) { | |
114 err.print("finding class loader instances .."); | |
115 } | |
116 | |
117 VM vm = VM.getVM(); | |
118 ObjectHeap heap = vm.getObjectHeap(); | |
119 Klass classLoaderKlass = vm.getSystemDictionary().getClassLoaderKlass(); | |
120 try { | |
121 heap.iterateObjectsOfKlass(new DefaultHeapVisitor() { | |
122 public boolean doObj(Oop oop) { | |
123 loaderMap.put(oop, new LoaderData()); | |
124 return false; | |
125 } | |
126 }, classLoaderKlass); | |
127 } catch (Exception se) { | |
128 se.printStackTrace(); | |
129 } | |
130 | |
131 if (verbose) { | |
132 err.println("done."); | |
133 err.print("computing per loader stat .."); | |
134 } | |
135 | |
136 SystemDictionary dict = VM.getVM().getSystemDictionary(); | |
137 dict.classesDo(new SystemDictionary.ClassAndLoaderVisitor() { | |
138 public void visit(Klass k, Oop loader) { | |
139 if (! (k instanceof InstanceKlass)) { | |
140 return; | |
141 } | |
142 LoaderData ld = (loader != null) ? (LoaderData)loaderMap.get(loader) | |
143 : bootstrapLoaderData; | |
144 if (ld != null) { | |
145 ld.numClasses++; | |
146 long size = computeSize((InstanceKlass)k); | |
147 ld.classDetail.add(new ClassData(k, size)); | |
148 ld.classSize += size; | |
149 } | |
150 } | |
151 }); | |
152 | |
153 if (verbose) { | |
154 err.println("done."); | |
155 err.print("please wait.. computing liveness"); | |
156 } | |
157 | |
158 // compute reverse pointer analysis (takes long time for larger app) | |
159 ReversePtrsAnalysis analysis = new ReversePtrsAnalysis(); | |
160 | |
161 if (verbose) { | |
162 analysis.setHeapProgressThunk(new HeapProgressThunk() { | |
163 public void heapIterationFractionUpdate(double fractionOfHeapVisited) { | |
164 err.print('.'); | |
165 } | |
166 // This will be called after the iteration is complete | |
167 public void heapIterationComplete() { | |
168 err.println("done."); | |
169 } | |
170 }); | |
171 } | |
172 | |
173 try { | |
174 analysis.run(); | |
175 } catch (Exception e) { | |
176 // e.printStackTrace(); | |
177 if (verbose) | |
178 err.println("liveness analysis may be inaccurate ..."); | |
179 } | |
180 ReversePtrs liveness = VM.getVM().getRevPtrs(); | |
181 | |
182 out.println("class_loader\tclasses\tbytes\tparent_loader\talive?\ttype"); | |
183 out.println(); | |
184 | |
185 long numClassLoaders = 1L; | |
186 long totalNumClasses = bootstrapLoaderData.numClasses; | |
187 long totalClassSize = bootstrapLoaderData.classSize; | |
188 long numAliveLoaders = 1L; | |
189 long numDeadLoaders = 0L; | |
190 | |
191 // print bootstrap loader details | |
192 out.print("<bootstrap>"); | |
193 out.print('\t'); | |
194 out.print(bootstrapLoaderData.numClasses); | |
195 out.print('\t'); | |
196 out.print(bootstrapLoaderData.classSize); | |
197 out.print('\t'); | |
198 out.print(" null "); | |
199 out.print('\t'); | |
200 // bootstrap loader is always alive | |
201 out.print("live"); | |
202 out.print('\t'); | |
203 out.println("<internal>"); | |
204 | |
205 for (Iterator keyItr = loaderMap.keySet().iterator(); keyItr.hasNext();) { | |
206 Oop loader = (Oop) keyItr.next(); | |
207 LoaderData data = (LoaderData) loaderMap.get(loader); | |
208 numClassLoaders ++; | |
209 totalNumClasses += data.numClasses; | |
210 totalClassSize += data.classSize; | |
211 | |
212 out.print(loader.getHandle()); | |
213 out.print('\t'); | |
214 out.print(data.numClasses); | |
215 out.print('\t'); | |
216 out.print(data.classSize); | |
217 out.print('\t'); | |
218 | |
219 class ParentFinder extends DefaultOopVisitor { | |
220 public void doOop(OopField field, boolean isVMField) { | |
221 if (field.getID().getName().equals("parent")) { | |
222 parent = field.getValue(getObj()); | |
223 } | |
224 } | |
225 private Oop parent = null; | |
226 public Oop getParent() { return parent; } | |
227 } | |
228 | |
229 ParentFinder parentFinder = new ParentFinder(); | |
230 loader.iterate(parentFinder, false); | |
231 Oop parent = parentFinder.getParent(); | |
232 out.print((parent != null)? parent.getHandle().toString() : " null "); | |
233 out.print('\t'); | |
234 boolean alive = (liveness != null) ? (liveness.get(loader) != null) : true; | |
235 out.print(alive? "live" : "dead"); | |
236 if (alive) numAliveLoaders++; else numDeadLoaders++; | |
237 out.print('\t'); | |
238 Klass loaderKlass = loader.getKlass(); | |
239 if (loaderKlass != null) { | |
240 out.print(loaderKlass.getName().asString()); | |
241 out.print('@'); | |
242 out.print(loader.getKlass().getHandle()); | |
243 } else { | |
244 out.print(" null! "); | |
245 } | |
246 out.println(); | |
247 } | |
248 | |
249 out.println(); | |
250 // summary line | |
251 out.print("total = "); | |
252 out.print(numClassLoaders); | |
253 out.print('\t'); | |
254 out.print(totalNumClasses); | |
255 out.print('\t'); | |
256 out.print(totalClassSize); | |
257 out.print('\t'); | |
258 out.print(" N/A "); | |
259 out.print('\t'); | |
260 out.print("alive="); | |
261 out.print(numAliveLoaders); | |
262 out.print(", dead="); | |
263 out.print(numDeadLoaders); | |
264 out.print('\t'); | |
265 out.print(" N/A "); | |
266 out.println(); | |
267 } | |
268 | |
261
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
269 private static long objectSize(Oop oop) { |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
270 return oop == null ? 0L : oop.getObjectSize(); |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
271 } |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
272 |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
273 // Don't count the shared empty arrays |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
274 private static long arraySize(Array arr) { |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
275 return arr.getLength() != 0L ? arr.getObjectSize() : 0L; |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
276 } |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
277 |
0 | 278 private long computeSize(InstanceKlass k) { |
279 long size = 0L; | |
261
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
280 // the InstanceKlass object itself |
0 | 281 size += k.getObjectSize(); |
282 | |
261
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
283 // Constant pool |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
284 ConstantPool cp = k.getConstants(); |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
285 size += cp.getObjectSize(); |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
286 size += objectSize(cp.getCache()); |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
287 size += objectSize(cp.getTags()); |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
288 |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
289 // Interfaces |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
290 size += arraySize(k.getLocalInterfaces()); |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
291 size += arraySize(k.getTransitiveInterfaces()); |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
292 |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
293 // Inner classes |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
294 size += objectSize(k.getInnerClasses()); |
0 | 295 |
261
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
296 // Fields |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
297 size += objectSize(k.getFields()); |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
298 |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
299 // Methods |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
300 ObjArray methods = k.getMethods(); |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
301 int nmethods = (int) methods.getLength(); |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
302 if (nmethods != 0L) { |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
303 size += methods.getObjectSize(); |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
304 for (int i = 0; i < nmethods; ++i) { |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
305 Method m = (Method) methods.getObjAt(i); |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
306 size += m.getObjectSize(); |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
307 size += objectSize(m.getConstMethod()); |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
308 } |
0 | 309 } |
310 | |
261
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
311 // MethodOrdering - an int array that records the original |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
312 // ordering of methods in the class file |
7f601f7c9b48
6731726: jmap -permstat reports only 50-60% of permgen memory usage.
martin
parents:
0
diff
changeset
|
313 size += arraySize(k.getMethodOrdering()); |
0 | 314 |
315 return size; | |
316 } | |
317 } |