Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/g1/concurrentG1RefineThread.hpp @ 20446:c10b463abc6e
8057824: methods to copy allocation context statistics
Reviewed-by: mikael, jmasa, tschatzl
| author | jcoomes |
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| date | Wed, 10 Sep 2014 13:01:13 -0700 |
| parents | 570cb6369f17 |
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| rev | line source |
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| 342 | 1 /* |
| 1972 | 2 * Copyright (c) 2001, 2010, 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_CONCURRENTG1REFINETHREAD_HPP |
| 26 #define SHARE_VM_GC_IMPLEMENTATION_G1_CONCURRENTG1REFINETHREAD_HPP | |
| 27 | |
| 28 #include "gc_implementation/shared/concurrentGCThread.hpp" | |
| 29 | |
| 342 | 30 // Forward Decl. |
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31 class CardTableEntryClosure; |
| 342 | 32 class ConcurrentG1Refine; |
| 33 | |
| 34 // The G1 Concurrent Refinement Thread (could be several in the future). | |
| 35 | |
| 36 class ConcurrentG1RefineThread: public ConcurrentGCThread { | |
| 37 friend class VMStructs; | |
| 38 friend class G1CollectedHeap; | |
| 39 | |
| 40 double _vtime_start; // Initial virtual time. | |
| 41 double _vtime_accum; // Initial virtual time. | |
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42 uint _worker_id; |
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43 uint _worker_id_offset; |
| 342 | 44 |
| 794 | 45 // The refinement threads collection is linked list. A predecessor can activate a successor |
| 46 // when the number of the rset update buffer crosses a certain threshold. A successor | |
| 47 // would self-deactivate when the number of the buffers falls below the threshold. | |
| 48 bool _active; | |
| 1111 | 49 ConcurrentG1RefineThread* _next; |
| 50 Monitor* _monitor; | |
| 51 ConcurrentG1Refine* _cg1r; | |
| 342 | 52 |
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53 // The closure applied to completed log buffers. |
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54 CardTableEntryClosure* _refine_closure; |
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55 |
| 1111 | 56 int _thread_threshold_step; |
| 57 // This thread activation threshold | |
| 58 int _threshold; | |
| 59 // This thread deactivation threshold | |
| 60 int _deactivation_threshold; | |
| 342 | 61 |
| 1111 | 62 void sample_young_list_rs_lengths(); |
| 63 void run_young_rs_sampling(); | |
| 64 void wait_for_completed_buffers(); | |
| 65 | |
| 66 void set_active(bool x) { _active = x; } | |
| 67 bool is_active(); | |
| 68 void activate(); | |
| 69 void deactivate(); | |
| 342 | 70 |
| 1111 | 71 public: |
| 72 virtual void run(); | |
| 342 | 73 // Constructor |
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74 ConcurrentG1RefineThread(ConcurrentG1Refine* cg1r, ConcurrentG1RefineThread* next, |
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75 CardTableEntryClosure* refine_closure, |
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76 uint worker_id_offset, uint worker_id); |
| 342 | 77 |
| 1111 | 78 void initialize(); |
| 79 | |
| 342 | 80 // Printing |
| 1019 | 81 void print() const; |
| 82 void print_on(outputStream* st) const; | |
| 342 | 83 |
| 84 // Total virtual time so far. | |
| 85 double vtime_accum() { return _vtime_accum; } | |
| 86 | |
| 1111 | 87 ConcurrentG1Refine* cg1r() { return _cg1r; } |
| 342 | 88 |
| 89 // shutdown | |
| 794 | 90 void stop(); |
| 342 | 91 }; |
| 1972 | 92 |
| 93 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_CONCURRENTG1REFINETHREAD_HPP |