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src/share/vm/gc_implementation/g1/g1_specialized_oop_closures.hpp@2ace1c4ee8da (annotated)
src/share/vm/gc_implementation/g1/g1_specialized_oop_closures.hpp
Tue, 10 Jan 2012 18:58:13 -0500
- author
- tonyp
- date
- Tue, 10 Jan 2012 18:58:13 -0500
- changeset 3416
- 2ace1c4ee8da
- parent 3086
- eeae91c9baba
- child 3466
- b4ebad3520bb
- permissions
- -rw-r--r--
6888336: G1: avoid explicitly marking and pushing objects in survivor spaces
Summary: This change simplifies the interaction between GC and concurrent marking. By disabling survivor spaces during the initial-mark pause we don't need to propagate marks of objects we copy during each GC (since we never need to copy an explicitly marked object).
Reviewed-by: johnc, brutisso
| ysr@777 | 1 | /* |
| tonyp@2962 | 2 | * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved. |
| ysr@777 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| ysr@777 | 4 | * |
| ysr@777 | 5 | * This code is free software; you can redistribute it and/or modify it |
| ysr@777 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| ysr@777 | 7 | * published by the Free Software Foundation. |
| ysr@777 | 8 | * |
| ysr@777 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| ysr@777 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| ysr@777 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| ysr@777 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| ysr@777 | 13 | * accompanied this code). |
| ysr@777 | 14 | * |
| ysr@777 | 15 | * You should have received a copy of the GNU General Public License version |
| ysr@777 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| ysr@777 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| ysr@777 | 18 | * |
| trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
| trims@1907 | 21 | * questions. |
| ysr@777 | 22 | * |
| ysr@777 | 23 | */ |
| ysr@777 | 24 | |
| stefank@2314 | 25 | #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP |
| stefank@2314 | 26 | #define SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP |
| stefank@2314 | 27 | |
| ysr@777 | 28 | // The following OopClosure types get specialized versions of |
| ysr@777 | 29 | // "oop_oop_iterate" that invoke the closures' do_oop methods |
| ysr@777 | 30 | // non-virtually, using a mechanism defined in this file. Extend these |
| ysr@777 | 31 | // macros in the obvious way to add specializations for new closures. |
| ysr@777 | 32 | |
| ysr@777 | 33 | // Forward declarations. |
| ysr@777 | 34 | enum G1Barrier { |
| ysr@777 | 35 | G1BarrierNone, G1BarrierRS, G1BarrierEvac |
| ysr@777 | 36 | }; |
| ysr@777 | 37 | |
| tonyp@961 | 38 | template<bool do_gen_barrier, G1Barrier barrier, |
| johnc@3086 | 39 | bool do_mark_object> |
| ysr@777 | 40 | class G1ParCopyClosure; |
| ysr@777 | 41 | class G1ParScanClosure; |
| iveresov@1696 | 42 | class G1ParPushHeapRSClosure; |
| ysr@777 | 43 | |
| iveresov@1696 | 44 | typedef G1ParCopyClosure<false, G1BarrierEvac, false> G1ParScanHeapEvacClosure; |
| ysr@777 | 45 | |
| ysr@777 | 46 | class FilterIntoCSClosure; |
| ysr@777 | 47 | class FilterOutOfRegionClosure; |
| tonyp@2968 | 48 | class G1CMOopClosure; |
| ysr@777 | 49 | |
| ysr@777 | 50 | #ifdef FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES |
| ysr@777 | 51 | #error "FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES already defined." |
| ysr@777 | 52 | #endif |
| ysr@777 | 53 | |
| ysr@777 | 54 | #define FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES(f) \ |
| ysr@777 | 55 | f(G1ParScanHeapEvacClosure,_nv) \ |
| ysr@777 | 56 | f(G1ParScanClosure,_nv) \ |
| iveresov@1696 | 57 | f(G1ParPushHeapRSClosure,_nv) \ |
| ysr@777 | 58 | f(FilterIntoCSClosure,_nv) \ |
| tonyp@2968 | 59 | f(FilterOutOfRegionClosure,_nv) \ |
| tonyp@2968 | 60 | f(G1CMOopClosure,_nv) |
| ysr@777 | 61 | |
| ysr@777 | 62 | #ifdef FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES |
| ysr@777 | 63 | #error "FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES already defined." |
| ysr@777 | 64 | #endif |
| ysr@777 | 65 | |
| ysr@777 | 66 | #define FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES(f) |
| stefank@2314 | 67 | |
| stefank@2314 | 68 | #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP |
