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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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21
hotspot/src/share/vm/ci/ciMethod.cpp
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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
@ -904,6 +904,20 @@ ciMethodData* ciMethod::method_data_or_null() {
return md;
}
// ------------------------------------------------------------------
// ciMethod::ensure_method_counters
//
address ciMethod::ensure_method_counters() {
check_is_loaded();
VM_ENTRY_MARK;
methodHandle mh(THREAD, get_Method());
MethodCounters *counter = mh->method_counters();
if (counter == NULL) {
counter = Method::build_method_counters(mh(), CHECK_AND_CLEAR_NULL);
}
return (address)counter;
}
// ------------------------------------------------------------------
// ciMethod::should_exclude
//
@ -1191,13 +1205,14 @@ void ciMethod::dump_replay_data(outputStream* st) {
ASSERT_IN_VM;
ResourceMark rm;
Method* method = get_Method();
MethodCounters* mcs = method->method_counters();
Klass* holder = method->method_holder();
st->print_cr("ciMethod %s %s %s %d %d %d %d %d",
holder->name()->as_quoted_ascii(),
method->name()->as_quoted_ascii(),
method->signature()->as_quoted_ascii(),
method->invocation_counter()->raw_counter(),
method->backedge_counter()->raw_counter(),
mcs == NULL ? 0 : mcs->invocation_counter()->raw_counter(),
mcs == NULL ? 0 : mcs->backedge_counter()->raw_counter(),
interpreter_invocation_count(),
interpreter_throwout_count(),
_instructions_size);