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6479360: PrintClassHistogram improvements

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Jcmd <pid> GC.class_stats (UnlockDiagnosticVMOptions)

Reviewed-by: coleenp, hseigel, sla, acorn
This commit is contained in:
Ioi Lam 2013-01-25 15:06:18 -05:00 • committed by Karen Kinnear
parent 19303cc71d
commit 93b845e21b
23 changed files with 807 additions and 53 deletions
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49
hotspot/src/share/vm/oops/instanceKlass.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2013, 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
@ -34,6 +34,7 @@
#include "interpreter/rewriter.hpp"
#include "jvmtifiles/jvmti.h"
#include "memory/genOopClosures.inline.hpp"
#include "memory/heapInspection.hpp"
#include "memory/metadataFactory.hpp"
#include "memory/oopFactory.hpp"
#include "oops/fieldStreams.hpp"
@ -2960,6 +2961,52 @@ const char* InstanceKlass::internal_name() const {
return external_name();
}
#if INCLUDE_SERVICES
// Size Statistics
void InstanceKlass::collect_statistics(KlassSizeStats *sz) const {
Klass::collect_statistics(sz);
sz->_inst_size = HeapWordSize * size_helper();
sz->_vtab_bytes = HeapWordSize * align_object_offset(vtable_length());
sz->_itab_bytes = HeapWordSize * align_object_offset(itable_length());
sz->_nonstatic_oopmap_bytes = HeapWordSize *
((is_interface() || is_anonymous()) ?
align_object_offset(nonstatic_oop_map_size()) :
nonstatic_oop_map_size());
int n = 0;
n += (sz->_methods_array_bytes = sz->count_array(methods()));
n += (sz->_method_ordering_bytes = sz->count_array(method_ordering()));
n += (sz->_local_interfaces_bytes = sz->count_array(local_interfaces()));
n += (sz->_transitive_interfaces_bytes = sz->count_array(transitive_interfaces()));
n += (sz->_signers_bytes = sz->count_array(signers()));
n += (sz->_fields_bytes = sz->count_array(fields()));
n += (sz->_inner_classes_bytes = sz->count_array(inner_classes()));
sz->_ro_bytes += n;
const ConstantPool* cp = constants();
if (cp) {
cp->collect_statistics(sz);
}
const Annotations* anno = annotations();
if (anno) {
anno->collect_statistics(sz);
}
const Array<Method*>* methods_array = methods();
if (methods()) {
for (int i = 0; i < methods_array->length(); i++) {
Method* method = methods_array->at(i);
if (method) {
sz->_method_count ++;
method->collect_statistics(sz);
}
}
}
}
#endif // INCLUDE_SERVICES
// Verification
class VerifyFieldClosure: public OopClosure {