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/*
* Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
# include "incls/_precompiled.incl"
# include "incls/_classify.cpp.incl"
const char* ClassifyObjectClosure::object_type_name[number_object_types] = {
"unknown",
"instance",
"instanceRef",
"objArray",
"symbol",
"klass",
"instanceKlass",
"method",
"constMethod",
"methodData",
"constantPool",
"constantPoolCache",
"typeArray",
"compiledICHolder"
};
object_type ClassifyObjectClosure::classify_object(oop obj, bool count) {
object_type type = unknown_type;
Klass* k = obj->blueprint();
if (k->as_klassOop() == SystemDictionary::Object_klass()) {
tty->print_cr("Found the class!");
}
if (count) {
k->set_alloc_count(k->alloc_count() + 1);
}
if (obj->is_instance()) {
if (k->oop_is_instanceRef()) {
type = instanceRef_type;
} else {
type = instance_type;
}
} else if (obj->is_typeArray()) {
type = typeArray_type;
} else if (obj->is_objArray()) {
type = objArray_type;
} else if (obj->is_symbol()) {
type = symbol_type;
} else if (obj->is_klass()) {
Klass* k = ((klassOop)obj)->klass_part();
if (k->oop_is_instance()) {
type = instanceKlass_type;
} else {
type = klass_type;
}
} else if (obj->is_method()) {
type = method_type;
} else if (obj->is_constMethod()) {
type = constMethod_type;
} else if (obj->is_methodData()) {
ShouldNotReachHere();
} else if (obj->is_constantPool()) {
type = constantPool_type;
} else if (obj->is_constantPoolCache()) {
type = constantPoolCache_type;
} else if (obj->is_compiledICHolder()) {
type = compiledICHolder_type;
} else {
ShouldNotReachHere();
}
assert(type != unknown_type, "found object of unknown type.");
return type;
}
void ClassifyObjectClosure::reset() {
for (int i = 0; i < number_object_types; ++i) {
object_count[i] = 0;
object_size[i] = 0;
}
total_object_count = 0;
total_object_size = 0;
}
void ClassifyObjectClosure::do_object(oop obj) {
int i = classify_object(obj, true);
++object_count[i];
++total_object_count;
size_t size = obj->size() * HeapWordSize;
object_size[i] += size;
total_object_size += size;
}
size_t ClassifyObjectClosure::print() {
int num_objects = 0;
size_t size_objects = 0;
for (int i = 0; i < number_object_types; ++i) {
if (object_count[i] != 0) {
tty->print_cr("%8d %-22s (%8d bytes, %5.2f bytes/object)",
object_count[i], object_type_name[i], object_size[i],
(float)object_size[i]/(float)object_count[i]);
}
num_objects += object_count[i];
size_objects += object_size[i];
}
assert(num_objects == total_object_count, "Object count mismatch!");
assert(size_objects == total_object_size, "Object size mismatch!");
tty->print_cr(" Total: %d objects, %d bytes", total_object_count,
total_object_size);
return total_object_size;
}
void ClassifyInstanceKlassClosure::do_object(oop obj) {
int type = classify_object(obj, false);
if (type == instanceKlass_type || type == klass_type) {
Klass* k = ((klassOop)obj)->klass_part();
if (k->alloc_count() > 0) {
ResourceMark rm;
const char *name;
if (k->name() == NULL) {
if (obj == Universe::klassKlassObj()) {
name = "_klassKlassObj";
} else if (obj == Universe::arrayKlassKlassObj()) {
name = "_arrayKlassKlassObj";
} else if (obj == Universe::objArrayKlassKlassObj()) {
name = "_objArrayKlassKlassObj";
} else if (obj == Universe::typeArrayKlassKlassObj()) {
name = "_typeArrayKlassKlassObj";
} else if (obj == Universe::instanceKlassKlassObj()) {
name = "_instanceKlassKlassObj";
} else if (obj == Universe::symbolKlassObj()) {
name = "_symbolKlassObj";
} else if (obj == Universe::methodKlassObj()) {
name = "_methodKlassObj";
} else if (obj == Universe::constMethodKlassObj()) {
name = "_constMethodKlassObj";
} else if (obj == Universe::constantPoolKlassObj()) {
name = "_constantPoolKlassObj";
} else if (obj == Universe::constantPoolCacheKlassObj()) {
name = "_constantPoolCacheKlassObj";
} else if (obj == Universe::compiledICHolderKlassObj()) {
name = "_compiledICHolderKlassObj";
} else if (obj == Universe::systemObjArrayKlassObj()) {
name = "_systemObjArrayKlassObj";
} else {
name = "[unnamed]";
}
} else {
name = k->external_name();
}
tty->print_cr("% 8d instances of %s", k->alloc_count(), name);
}
total_instances += k->alloc_count();
}
}
void ClassifyInstanceKlassClosure::print() {
tty->print_cr(" Total instances: %d.", total_instances);
}
void ClassifyInstanceKlassClosure::reset() {
total_instances = 0;
}
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