Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/g1/heapRegionSeq.inline.hpp @ 3830:f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
Summary: Refactor the allocation code during GC to use the G1AllocRegion abstraction. Use separate subclasses of G1AllocRegion for survivor and old regions. Avoid BOT updates and dirty survivor cards incrementally for the former.
Reviewed-by: brutisso, johnc, ysr
| author | tonyp |
|---|---|
| date | Fri, 12 Aug 2011 11:31:06 -0400 |
| parents | c3f1170908be |
| children | 720b6a76dd9d |
| rev | line source |
|---|---|
| 342 | 1 /* |
| 3766 | 2 * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved. |
| 342 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 342 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP |
| 26 #define SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP | |
| 27 | |
| 3766 | 28 #include "gc_implementation/g1/heapRegion.hpp" |
| 1972 | 29 #include "gc_implementation/g1/heapRegionSeq.hpp" |
| 30 | |
| 3766 | 31 inline size_t HeapRegionSeq::addr_to_index_biased(HeapWord* addr) const { |
| 32 assert(_heap_bottom <= addr && addr < _heap_end, | |
| 33 err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT" end: "PTR_FORMAT, | |
| 34 addr, _heap_bottom, _heap_end)); | |
| 35 size_t index = (size_t) addr >> _region_shift; | |
| 36 return index; | |
| 37 } | |
| 38 | |
| 39 inline HeapRegion* HeapRegionSeq::addr_to_region_unsafe(HeapWord* addr) const { | |
| 40 assert(_heap_bottom <= addr && addr < _heap_end, | |
| 41 err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT" end: "PTR_FORMAT, | |
| 42 addr, _heap_bottom, _heap_end)); | |
| 43 size_t index_biased = addr_to_index_biased(addr); | |
| 44 HeapRegion* hr = _regions_biased[index_biased]; | |
| 45 assert(hr != NULL, "invariant"); | |
| 46 return hr; | |
| 47 } | |
| 48 | |
| 49 inline HeapRegion* HeapRegionSeq::addr_to_region(HeapWord* addr) const { | |
| 50 if (addr != NULL && addr < _heap_end) { | |
| 51 assert(addr >= _heap_bottom, | |
| 52 err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT, addr, _heap_bottom)); | |
| 53 return addr_to_region_unsafe(addr); | |
| 342 | 54 } |
| 55 return NULL; | |
| 56 } | |
| 1972 | 57 |
| 3766 | 58 inline HeapRegion* HeapRegionSeq::at(size_t index) const { |
| 59 assert(index < length(), "pre-condition"); | |
| 60 HeapRegion* hr = _regions[index]; | |
| 61 assert(hr != NULL, "sanity"); | |
| 62 assert(hr->hrs_index() == index, "sanity"); | |
| 63 return hr; | |
| 64 } | |
| 65 | |
| 1972 | 66 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP |