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7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis

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Track allocated bytes in Thread's, update on TLAB retirement and direct allocation in Eden and tenured, add JNI methods for ThreadMXBean.

Reviewed-by: coleenp, kvn, dholmes, ysr
This commit is contained in:
Paul Hohensee 2011-01-07 10:42:32 -05:00
parent 6f2c2c3272
commit 7b0134a7cb
26 changed files with 447 additions and 212 deletions
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7
hotspot/src/share/vm/memory/threadLocalAllocBuffer.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1999, 2011, 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
@ -114,6 +114,11 @@ void ThreadLocalAllocBuffer::accumulate_statistics() {
void ThreadLocalAllocBuffer::make_parsable(bool retire) {
if (end() != NULL) {
invariants();
if (retire) {
myThread()->incr_allocated_bytes(used_bytes());
}
CollectedHeap::fill_with_object(top(), hard_end(), retire);
if (retire || ZeroTLAB) { // "Reset" the TLAB