Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/g1/survRateGroup.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | c18cbe5936b8 |
| children | d2a62e0f25eb |
| 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 | |
| 1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_SURVRATEGROUP_HPP |
| 26 #define SHARE_VM_GC_IMPLEMENTATION_G1_SURVRATEGROUP_HPP | |
| 27 | |
| 28 #include "utilities/numberSeq.hpp" | |
| 29 | |
| 342 | 30 class G1CollectorPolicy; |
| 31 | |
| 32 class SurvRateGroup : public CHeapObj { | |
| 33 private: | |
| 34 G1CollectorPolicy* _g1p; | |
| 35 const char* _name; | |
| 36 | |
| 545 | 37 size_t _stats_arrays_length; |
| 342 | 38 double* _surv_rate; |
| 39 double* _accum_surv_rate_pred; | |
| 40 double _last_pred; | |
| 41 double _accum_surv_rate; | |
| 42 TruncatedSeq** _surv_rate_pred; | |
| 43 NumberSeq** _summary_surv_rates; | |
| 44 size_t _summary_surv_rates_len; | |
| 45 size_t _summary_surv_rates_max_len; | |
| 46 | |
| 47 int _all_regions_allocated; | |
| 545 | 48 size_t _region_num; |
| 342 | 49 size_t _setup_seq_num; |
| 50 | |
| 51 public: | |
| 52 SurvRateGroup(G1CollectorPolicy* g1p, | |
| 53 const char* name, | |
| 54 size_t summary_surv_rates_len); | |
| 545 | 55 void reset(); |
| 342 | 56 void start_adding_regions(); |
| 57 void stop_adding_regions(); | |
| 58 void record_surviving_words(int age_in_group, size_t surv_words); | |
| 59 void all_surviving_words_recorded(bool propagate); | |
| 60 const char* name() { return _name; } | |
| 61 | |
| 545 | 62 size_t region_num() { return _region_num; } |
| 342 | 63 double accum_surv_rate_pred(int age) { |
| 64 assert(age >= 0, "must be"); | |
| 545 | 65 if ((size_t)age < _stats_arrays_length) |
| 342 | 66 return _accum_surv_rate_pred[age]; |
| 67 else { | |
| 545 | 68 double diff = (double) (age - _stats_arrays_length + 1); |
| 69 return _accum_surv_rate_pred[_stats_arrays_length-1] + diff * _last_pred; | |
| 342 | 70 } |
| 71 } | |
| 72 | |
| 73 double accum_surv_rate(size_t adjustment); | |
| 74 | |
| 75 TruncatedSeq* get_seq(size_t age) { | |
| 76 if (age >= _setup_seq_num) { | |
| 77 guarantee( _setup_seq_num > 0, "invariant" ); | |
| 78 age = _setup_seq_num-1; | |
| 79 } | |
| 80 TruncatedSeq* seq = _surv_rate_pred[age]; | |
| 81 guarantee( seq != NULL, "invariant" ); | |
| 82 return seq; | |
| 83 } | |
| 84 | |
| 85 int next_age_index(); | |
| 86 int age_in_group(int age_index) { | |
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87 int ret = (int) (_all_regions_allocated - age_index); |
| 342 | 88 assert( ret >= 0, "invariant" ); |
| 89 return ret; | |
| 90 } | |
| 91 void finished_recalculating_age_indexes() { | |
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92 _all_regions_allocated = 0; |
| 342 | 93 } |
| 94 | |
| 95 #ifndef PRODUCT | |
| 96 void print(); | |
| 97 void print_surv_rate_summary(); | |
| 98 #endif // PRODUCT | |
| 99 }; | |
| 1972 | 100 |
| 101 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_SURVRATEGROUP_HPP |