Mercurial > hg > graal-jvmci-8
view src/share/vm/gc_implementation/g1/heapRegion.inline.hpp @ 3914:20213c8a3c40
7050392: G1: Introduce flag to generate a log of the G1 ergonomic decisions
Summary: It introduces ergonomic decision logging in G1 for the following heuristics: heap sizing, collection set construction, concurrent cycle initiation, and partially-young GC start/end. The code has a bit of refactoring in a few places to make the decision logging possible. It also replaces alternative ad-hoc logging that we have under different parameters and switches (G1_DEBUG, G1PolicyVerbose).
Reviewed-by: johnc, ysr
author | tonyp |
---|---|
date | Wed, 07 Sep 2011 12:21:23 -0400 |
parents | abdfc822206f |
children | 2ace1c4ee8da |
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/* * Copyright (c) 2001, 2010, 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 * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGION_INLINE_HPP #define SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGION_INLINE_HPP inline HeapWord* G1OffsetTableContigSpace::allocate(size_t size) { HeapWord* res = ContiguousSpace::allocate(size); if (res != NULL) { _offsets.alloc_block(res, size); } return res; } // Because of the requirement of keeping "_offsets" up to date with the // allocations, we sequentialize these with a lock. Therefore, best if // this is used for larger LAB allocations only. inline HeapWord* G1OffsetTableContigSpace::par_allocate(size_t size) { MutexLocker x(&_par_alloc_lock); // Given that we take the lock no need to use par_allocate() here. HeapWord* res = ContiguousSpace::allocate(size); if (res != NULL) { _offsets.alloc_block(res, size); } return res; } inline HeapWord* G1OffsetTableContigSpace::block_start(const void* p) { return _offsets.block_start(p); } inline HeapWord* G1OffsetTableContigSpace::block_start_const(const void* p) const { return _offsets.block_start_const(p); } #endif // SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGION_INLINE_HPP