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comparison agent/src/share/classes/sun/jvm/hotspot/tools/PermStat.java @ 6725:da91efe96a93

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6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents e3e363b2bf19
children
comparison
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6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2003, 2008, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
199 out.print('\t'); 199 out.print('\t');
200 Klass loaderKlass = loader.getKlass(); 200 Klass loaderKlass = loader.getKlass();
201 if (loaderKlass != null) { 201 if (loaderKlass != null) {
202 out.print(loaderKlass.getName().asString()); 202 out.print(loaderKlass.getName().asString());
203 out.print('@'); 203 out.print('@');
204 out.print(loader.getKlass().getHandle()); 204 out.print(loader.getKlass().getAddress());
205 } else { 205 } else {
206 out.print(" null! "); 206 out.print(" null! ");
207 } 207 }
208 out.println(); 208 out.println();
209 } 209 }
231 private static long objectSize(Oop oop) { 231 private static long objectSize(Oop oop) {
232 return oop == null ? 0L : oop.getObjectSize(); 232 return oop == null ? 0L : oop.getObjectSize();
233 } 233 }
234 234
235 // Don't count the shared empty arrays 235 // Don't count the shared empty arrays
236 private static long arraySize(Array arr) { 236 private static long arraySize(GenericArray arr) {
237 return arr.getLength() != 0L ? arr.getObjectSize() : 0L; 237 return arr.getLength() != 0L ? arr.getSize() : 0L;
238 } 238 }
239 239
240 private long computeSize(InstanceKlass k) { 240 private long computeSize(InstanceKlass k) {
241 long size = 0L; 241 long size = 0L;
242 // the InstanceKlass object itself 242 // the InstanceKlass object itself
243 size += k.getObjectSize(); 243 size += k.getSize();
244 244
245 // Constant pool 245 // Constant pool
246 ConstantPool cp = k.getConstants(); 246 ConstantPool cp = k.getConstants();
247 size += cp.getObjectSize(); 247 size += cp.getSize();
248 size += objectSize(cp.getCache()); 248 if (cp.getCache() != null) {
249 size += objectSize(cp.getTags()); 249 size += cp.getCache().getSize();
250 }
251 size += arraySize(cp.getTags());
250 252
251 // Interfaces 253 // Interfaces
252 size += arraySize(k.getLocalInterfaces()); 254 size += arraySize(k.getLocalInterfaces());
253 size += arraySize(k.getTransitiveInterfaces()); 255 size += arraySize(k.getTransitiveInterfaces());
254 256
255 // Inner classes 257 // Inner classes
256 size += objectSize(k.getInnerClasses()); 258 size += arraySize(k.getInnerClasses());
257 259
258 // Fields 260 // Fields
259 size += objectSize(k.getFields()); 261 size += arraySize(k.getFields());
260 262
261 // Methods 263 // Methods
262 ObjArray methods = k.getMethods(); 264 MethodArray methods = k.getMethods();
263 int nmethods = (int) methods.getLength(); 265 int nmethods = (int) methods.getLength();
264 if (nmethods != 0L) { 266 if (nmethods != 0L) {
265 size += methods.getObjectSize(); 267 size += methods.getSize();
266 for (int i = 0; i < nmethods; ++i) { 268 for (int i = 0; i < nmethods; ++i) {
267 Method m = (Method) methods.getObjAt(i); 269 Method m = methods.at(i);
268 size += m.getObjectSize(); 270 size += m.getSize();
269 size += objectSize(m.getConstMethod()); 271 size += m.getConstMethod().getSize();
270 } 272 }
271 } 273 }
272 274
273 // MethodOrdering - an int array that records the original
274 // ordering of methods in the class file
275 size += arraySize(k.getMethodOrdering());
276
277 return size; 275 return size;
278 } 276 }
279 } 277 }