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8010862: The Method counter fields used for profiling can be allocated lazily

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Allocate the method's profiling related metadata until they are needed.

Reviewed-by: coleenp, roland
This commit is contained in:
Jiangli Zhou 2013-04-09 17:17:41 -04:00
parent 0afa77628c
commit 56370657b9
34 changed files with 773 additions and 295 deletions
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3
hotspot/src/share/vm/ci/ciMethod.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1999, 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
@ -262,6 +262,7 @@ class ciMethod : public ciMetadata {
bool is_klass_loaded(int refinfo_index, bool must_be_resolved) const;
bool check_call(int refinfo_index, bool is_static) const;
bool ensure_method_data(); // make sure it exists in the VM also
address ensure_method_counters();
int instructions_size();
int scale_count(int count, float prof_factor = 1.); // make MDO count commensurate with IIC