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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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6
hotspot/src/share/vm/oops/klass.hpp
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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
@ -91,6 +91,7 @@ template <class T> class GrowableArray;
class ClassLoaderData;
class klassVtable;
class ParCompactionManager;
class KlassSizeStats;
class Klass : public Metadata {
friend class VMStructs;
@ -477,6 +478,9 @@ class Klass : public Metadata {
// Size of klass in word size.
virtual int size() const = 0;
#if INCLUDE_SERVICES
virtual void collect_statistics(KlassSizeStats *sz) const;
#endif
// Returns the Java name for a class (Resource allocated)
// For arrays, this returns the name of the element with a leading '['.