Sat, 01 Dec 2007 00:00:00 +0000
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duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | # include "incls/_precompiled.incl" |
duke@435 | 26 | # include "incls/_classify.cpp.incl" |
duke@435 | 27 | |
duke@435 | 28 | |
duke@435 | 29 | const char* ClassifyObjectClosure::object_type_name[number_object_types] = { |
duke@435 | 30 | "unknown", |
duke@435 | 31 | "instance", |
duke@435 | 32 | "instanceRef", |
duke@435 | 33 | "objArray", |
duke@435 | 34 | "symbol", |
duke@435 | 35 | "klass", |
duke@435 | 36 | "instanceKlass", |
duke@435 | 37 | "method", |
duke@435 | 38 | "constMethod", |
duke@435 | 39 | "methodData", |
duke@435 | 40 | "constantPool", |
duke@435 | 41 | "constantPoolCache", |
duke@435 | 42 | "typeArray", |
duke@435 | 43 | "compiledICHolder" |
duke@435 | 44 | }; |
duke@435 | 45 | |
duke@435 | 46 | |
duke@435 | 47 | object_type ClassifyObjectClosure::classify_object(oop obj, bool count) { |
duke@435 | 48 | object_type type = unknown_type; |
duke@435 | 49 | |
duke@435 | 50 | Klass* k = obj->blueprint(); |
duke@435 | 51 | |
duke@435 | 52 | if (k->as_klassOop() == SystemDictionary::object_klass()) { |
duke@435 | 53 | tty->print_cr("Found the class!"); |
duke@435 | 54 | } |
duke@435 | 55 | |
duke@435 | 56 | if (count) { |
duke@435 | 57 | k->set_alloc_count(k->alloc_count() + 1); |
duke@435 | 58 | } |
duke@435 | 59 | |
duke@435 | 60 | if (obj->is_instance()) { |
duke@435 | 61 | if (k->oop_is_instanceRef()) { |
duke@435 | 62 | type = instanceRef_type; |
duke@435 | 63 | } else { |
duke@435 | 64 | type = instance_type; |
duke@435 | 65 | } |
duke@435 | 66 | } else if (obj->is_typeArray()) { |
duke@435 | 67 | type = typeArray_type; |
duke@435 | 68 | } else if (obj->is_objArray()) { |
duke@435 | 69 | type = objArray_type; |
duke@435 | 70 | } else if (obj->is_symbol()) { |
duke@435 | 71 | type = symbol_type; |
duke@435 | 72 | } else if (obj->is_klass()) { |
duke@435 | 73 | Klass* k = ((klassOop)obj)->klass_part(); |
duke@435 | 74 | if (k->oop_is_instance()) { |
duke@435 | 75 | type = instanceKlass_type; |
duke@435 | 76 | } else { |
duke@435 | 77 | type = klass_type; |
duke@435 | 78 | } |
duke@435 | 79 | } else if (obj->is_method()) { |
duke@435 | 80 | type = method_type; |
duke@435 | 81 | } else if (obj->is_constMethod()) { |
duke@435 | 82 | type = constMethod_type; |
duke@435 | 83 | } else if (obj->is_methodData()) { |
duke@435 | 84 | ShouldNotReachHere(); |
duke@435 | 85 | } else if (obj->is_constantPool()) { |
duke@435 | 86 | type = constantPool_type; |
duke@435 | 87 | } else if (obj->is_constantPoolCache()) { |
duke@435 | 88 | type = constantPoolCache_type; |
duke@435 | 89 | } else if (obj->is_compiledICHolder()) { |
duke@435 | 90 | type = compiledICHolder_type; |
duke@435 | 91 | } else { |
duke@435 | 92 | ShouldNotReachHere(); |
duke@435 | 93 | } |
duke@435 | 94 | |
duke@435 | 95 | assert(type != unknown_type, "found object of unknown type."); |
duke@435 | 96 | return type; |
duke@435 | 97 | } |
duke@435 | 98 | |
duke@435 | 99 | |
duke@435 | 100 | void ClassifyObjectClosure::reset() { |
duke@435 | 101 | for (int i = 0; i < number_object_types; ++i) { |
duke@435 | 102 | object_count[i] = 0; |
duke@435 | 103 | object_size[i] = 0; |
duke@435 | 104 | } |
duke@435 | 105 | total_object_count = 0; |
duke@435 | 106 | total_object_size = 0; |
duke@435 | 107 | } |
duke@435 | 108 | |
duke@435 | 109 | |
duke@435 | 110 | void ClassifyObjectClosure::do_object(oop obj) { |
duke@435 | 111 | int i = classify_object(obj, true); |
duke@435 | 112 | ++object_count[i]; |
duke@435 | 113 | ++total_object_count; |
duke@435 | 114 | size_t size = obj->size() * HeapWordSize; |
duke@435 | 115 | object_size[i] += size; |
duke@435 | 116 | total_object_size += size; |
duke@435 | 117 | } |
duke@435 | 118 | |
duke@435 | 119 | |
duke@435 | 120 | size_t ClassifyObjectClosure::print() { |
duke@435 | 121 | int num_objects = 0; |
duke@435 | 122 | size_t size_objects = 0; |
duke@435 | 123 | for (int i = 0; i < number_object_types; ++i) { |
duke@435 | 124 | if (object_count[i] != 0) { |
duke@435 | 125 | tty->print_cr("%8d %-22s (%8d bytes, %5.2f bytes/object)", |
duke@435 | 126 | object_count[i], object_type_name[i], object_size[i], |
duke@435 | 127 | (float)object_size[i]/(float)object_count[i]); |
duke@435 | 128 | } |
duke@435 | 129 | num_objects += object_count[i]; |
duke@435 | 130 | size_objects += object_size[i]; |
duke@435 | 131 | } |
duke@435 | 132 | assert(num_objects == total_object_count, "Object count mismatch!"); |
duke@435 | 133 | assert(size_objects == total_object_size, "Object size mismatch!"); |
duke@435 | 134 | |
duke@435 | 135 | tty->print_cr(" Total: %d objects, %d bytes", total_object_count, |
duke@435 | 136 | total_object_size); |
duke@435 | 137 | return total_object_size; |
duke@435 | 138 | } |
duke@435 | 139 | |
duke@435 | 140 | |
duke@435 | 141 | void ClassifyInstanceKlassClosure::do_object(oop obj) { |
duke@435 | 142 | int type = classify_object(obj, false); |
duke@435 | 143 | if (type == instanceKlass_type || type == klass_type) { |
duke@435 | 144 | Klass* k = ((klassOop)obj)->klass_part(); |
duke@435 | 145 | if (k->alloc_count() > 0) { |
duke@435 | 146 | ResourceMark rm; |
duke@435 | 147 | const char *name; |
duke@435 | 148 | if (k->name() == NULL) { |
duke@435 | 149 | |
duke@435 | 150 | if (obj == Universe::klassKlassObj()) { |
duke@435 | 151 | name = "_klassKlassObj"; |
duke@435 | 152 | } else if (obj == Universe::arrayKlassKlassObj()) { |
duke@435 | 153 | name = "_arrayKlassKlassObj"; |
duke@435 | 154 | } else if (obj == Universe::objArrayKlassKlassObj()) { |
duke@435 | 155 | name = "_objArrayKlassKlassObj"; |
duke@435 | 156 | } else if (obj == Universe::typeArrayKlassKlassObj()) { |
duke@435 | 157 | name = "_typeArrayKlassKlassObj"; |
duke@435 | 158 | } else if (obj == Universe::instanceKlassKlassObj()) { |
duke@435 | 159 | name = "_instanceKlassKlassObj"; |
duke@435 | 160 | } else if (obj == Universe::symbolKlassObj()) { |
duke@435 | 161 | name = "_symbolKlassObj"; |
duke@435 | 162 | } else if (obj == Universe::methodKlassObj()) { |
duke@435 | 163 | name = "_methodKlassObj"; |
duke@435 | 164 | } else if (obj == Universe::constMethodKlassObj()) { |
duke@435 | 165 | name = "_constMethodKlassObj"; |
duke@435 | 166 | } else if (obj == Universe::constantPoolKlassObj()) { |
duke@435 | 167 | name = "_constantPoolKlassObj"; |
duke@435 | 168 | } else if (obj == Universe::constantPoolCacheKlassObj()) { |
duke@435 | 169 | name = "_constantPoolCacheKlassObj"; |
duke@435 | 170 | } else if (obj == Universe::compiledICHolderKlassObj()) { |
duke@435 | 171 | name = "_compiledICHolderKlassObj"; |
duke@435 | 172 | } else if (obj == Universe::systemObjArrayKlassObj()) { |
duke@435 | 173 | name = "_systemObjArrayKlassObj"; |
duke@435 | 174 | } else { |
duke@435 | 175 | name = "[unnamed]"; |
duke@435 | 176 | } |
duke@435 | 177 | } else { |
duke@435 | 178 | name = k->external_name(); |
duke@435 | 179 | } |
duke@435 | 180 | tty->print_cr("% 8d instances of %s", k->alloc_count(), name); |
duke@435 | 181 | } |
duke@435 | 182 | total_instances += k->alloc_count(); |
duke@435 | 183 | } |
duke@435 | 184 | } |
duke@435 | 185 | |
duke@435 | 186 | |
duke@435 | 187 | void ClassifyInstanceKlassClosure::print() { |
duke@435 | 188 | tty->print_cr(" Total instances: %d.", total_instances); |
duke@435 | 189 | } |
duke@435 | 190 | |
duke@435 | 191 | |
duke@435 | 192 | void ClassifyInstanceKlassClosure::reset() { |
duke@435 | 193 | total_instances = 0; |
duke@435 | 194 | } |