Mercurial > jdk8-mips64-public > hotspot / annotate
src/share/vm/gc_implementation/g1/vm_operations_g1.hpp@f9ec1e4bbb44 (annotated)
src/share/vm/gc_implementation/g1/vm_operations_g1.hpp
Thu, 15 Apr 2010 18:45:30 -0400
- author
- tonyp
- date
- Thu, 15 Apr 2010 18:45:30 -0400
- changeset 1825
- f9ec1e4bbb44
- parent 1523
- 3fc996d4edd2
- child 1907
- c18cbe5936b8
- permissions
- -rw-r--r--
6939027: G1: assertion failure during the concurrent phase of cleanup
Summary: The outgoing region map is not maintained properly and it's causing an assert failure. Given that we don't actually use it, I'm removing it. I'm piggy-backing a small change on this which removes a message that it's printed before a Full GC when DisableExplicitGC is set.
Reviewed-by: apetrusenko, ysr
| ysr@777 | 1 | /* |
| xdono@1279 | 2 | * Copyright 2001-2009 Sun Microsystems, Inc. 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 | * |
| ysr@777 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| ysr@777 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| ysr@777 | 21 | * have any questions. |
| ysr@777 | 22 | * |
| ysr@777 | 23 | */ |
| ysr@777 | 24 | |
| ysr@777 | 25 | // VM_operations for the G1 collector. |
| ysr@777 | 26 | // VM_GC_Operation: |
| ysr@777 | 27 | // - VM_CGC_Operation |
| ysr@777 | 28 | // - VM_G1CollectFull |
| ysr@777 | 29 | // - VM_G1CollectForAllocation |
| ysr@777 | 30 | // - VM_G1IncCollectionPause |
| ysr@777 | 31 | // - VM_G1PopRegionCollectionPause |
| ysr@777 | 32 | |
| ysr@777 | 33 | class VM_G1CollectFull: public VM_GC_Operation { |
| ysr@777 | 34 | private: |
| ysr@777 | 35 | public: |
| ysr@777 | 36 | VM_G1CollectFull(int gc_count_before, |
| ysr@777 | 37 | GCCause::Cause gc_cause) |
| ysr@777 | 38 | : VM_GC_Operation(gc_count_before) |
| ysr@777 | 39 | { |
| ysr@777 | 40 | _gc_cause = gc_cause; |
| ysr@777 | 41 | } |
| ysr@777 | 42 | ~VM_G1CollectFull() {} |
| ysr@777 | 43 | virtual VMOp_Type type() const { return VMOp_G1CollectFull; } |
| ysr@777 | 44 | virtual void doit(); |
| ysr@777 | 45 | virtual const char* name() const { |
| ysr@777 | 46 | return "full garbage-first collection"; |
| ysr@777 | 47 | } |
| ysr@777 | 48 | }; |
| ysr@777 | 49 | |
| ysr@777 | 50 | class VM_G1CollectForAllocation: public VM_GC_Operation { |
| ysr@777 | 51 | private: |
| ysr@777 | 52 | HeapWord* _res; |
| ysr@777 | 53 | size_t _size; // size of object to be allocated |
| ysr@777 | 54 | public: |
| ysr@777 | 55 | VM_G1CollectForAllocation(size_t size, int gc_count_before) |
| ysr@777 | 56 | : VM_GC_Operation(gc_count_before) { |
| ysr@777 | 57 | _size = size; |
| ysr@777 | 58 | _res = NULL; |
| ysr@777 | 59 | } |
| ysr@777 | 60 | ~VM_G1CollectForAllocation() {} |
| ysr@777 | 61 | virtual VMOp_Type type() const { return VMOp_G1CollectForAllocation; } |
| ysr@777 | 62 | virtual void doit(); |
| ysr@777 | 63 | virtual const char* name() const { |
| ysr@777 | 64 | return "garbage-first collection to satisfy allocation"; |
| ysr@777 | 65 | } |
| ysr@777 | 66 | HeapWord* result() { return _res; } |
| ysr@777 | 67 | }; |
| ysr@777 | 68 | |
| ysr@777 | 69 | class VM_G1IncCollectionPause: public VM_GC_Operation { |
| ysr@777 | 70 | public: |
| ysr@1523 | 71 | VM_G1IncCollectionPause(int gc_count_before, |
| ysr@1523 | 72 | GCCause::Cause gc_cause = GCCause::_g1_inc_collection_pause) : |
| ysr@1523 | 73 | VM_GC_Operation(gc_count_before) { _gc_cause = gc_cause; } |
| ysr@777 | 74 | virtual VMOp_Type type() const { return VMOp_G1IncCollectionPause; } |
| ysr@777 | 75 | virtual void doit(); |
| ysr@777 | 76 | virtual const char* name() const { |
| ysr@777 | 77 | return "garbage-first incremental collection pause"; |
| ysr@777 | 78 | } |
| ysr@777 | 79 | }; |
| ysr@777 | 80 | |
| ysr@777 | 81 | // Concurrent GC stop-the-world operations such as initial and final mark; |
| ysr@777 | 82 | // consider sharing these with CMS's counterparts. |
| ysr@777 | 83 | class VM_CGC_Operation: public VM_Operation { |
| ysr@777 | 84 | VoidClosure* _cl; |
| ysr@777 | 85 | const char* _printGCMessage; |
| ysr@777 | 86 | public: |
| ysr@777 | 87 | VM_CGC_Operation(VoidClosure* cl, const char *printGCMsg) : |
| ysr@777 | 88 | _cl(cl), |
| ysr@777 | 89 | _printGCMessage(printGCMsg) |
| ysr@777 | 90 | {} |
| ysr@777 | 91 | |
| ysr@777 | 92 | ~VM_CGC_Operation() {} |
| ysr@777 | 93 | |
| ysr@777 | 94 | virtual VMOp_Type type() const { return VMOp_CGC_Operation; } |
| ysr@777 | 95 | virtual void doit(); |
| ysr@777 | 96 | virtual bool doit_prologue(); |
| ysr@777 | 97 | virtual void doit_epilogue(); |
| ysr@777 | 98 | virtual const char* name() const { |
| ysr@777 | 99 | return "concurrent gc"; |
| ysr@777 | 100 | } |
| ysr@777 | 101 | }; |
