Mercurial > hg > graal-compiler
annotate src/share/vm/gc_implementation/g1/survRateGroup.hpp @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | 1316cec51b4d |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 342 | 1 /* |
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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 | |
| 25 class G1CollectorPolicy; | |
| 26 | |
| 27 class SurvRateGroup : public CHeapObj { | |
| 28 private: | |
| 29 G1CollectorPolicy* _g1p; | |
| 30 const char* _name; | |
| 31 | |
| 545 | 32 size_t _stats_arrays_length; |
| 342 | 33 double* _surv_rate; |
| 34 double* _accum_surv_rate_pred; | |
| 35 double _last_pred; | |
| 36 double _accum_surv_rate; | |
| 37 TruncatedSeq** _surv_rate_pred; | |
| 38 NumberSeq** _summary_surv_rates; | |
| 39 size_t _summary_surv_rates_len; | |
| 40 size_t _summary_surv_rates_max_len; | |
| 41 | |
| 42 int _all_regions_allocated; | |
| 545 | 43 size_t _region_num; |
| 342 | 44 size_t _setup_seq_num; |
| 45 | |
| 46 public: | |
| 47 SurvRateGroup(G1CollectorPolicy* g1p, | |
| 48 const char* name, | |
| 49 size_t summary_surv_rates_len); | |
| 545 | 50 void reset(); |
| 342 | 51 void start_adding_regions(); |
| 52 void stop_adding_regions(); | |
| 53 void record_surviving_words(int age_in_group, size_t surv_words); | |
| 54 void all_surviving_words_recorded(bool propagate); | |
| 55 const char* name() { return _name; } | |
| 56 | |
| 545 | 57 size_t region_num() { return _region_num; } |
| 342 | 58 double accum_surv_rate_pred(int age) { |
| 59 assert(age >= 0, "must be"); | |
| 545 | 60 if ((size_t)age < _stats_arrays_length) |
| 342 | 61 return _accum_surv_rate_pred[age]; |
| 62 else { | |
| 545 | 63 double diff = (double) (age - _stats_arrays_length + 1); |
| 64 return _accum_surv_rate_pred[_stats_arrays_length-1] + diff * _last_pred; | |
| 342 | 65 } |
| 66 } | |
| 67 | |
| 68 double accum_surv_rate(size_t adjustment); | |
| 69 | |
| 70 TruncatedSeq* get_seq(size_t age) { | |
| 71 if (age >= _setup_seq_num) { | |
| 72 guarantee( _setup_seq_num > 0, "invariant" ); | |
| 73 age = _setup_seq_num-1; | |
| 74 } | |
| 75 TruncatedSeq* seq = _surv_rate_pred[age]; | |
| 76 guarantee( seq != NULL, "invariant" ); | |
| 77 return seq; | |
| 78 } | |
| 79 | |
| 80 int next_age_index(); | |
| 81 int age_in_group(int age_index) { | |
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82 int ret = (int) (_all_regions_allocated - age_index); |
| 342 | 83 assert( ret >= 0, "invariant" ); |
| 84 return ret; | |
| 85 } | |
| 86 void finished_recalculating_age_indexes() { | |
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87 _all_regions_allocated = 0; |
| 342 | 88 } |
| 89 | |
| 90 #ifndef PRODUCT | |
| 91 void print(); | |
| 92 void print_surv_rate_summary(); | |
| 93 #endif // PRODUCT | |
| 94 }; |