Mercurial > hg > graal-compiler
view src/share/vm/gc_implementation/g1/survRateGroup.hpp @ 948:89e0543e1737
6884624: Update copyright year
Summary: Update copyright for files that have been modified in 2009 through Septermber
Reviewed-by: tbell, ohair
author | xdono |
---|---|
date | Tue, 22 Sep 2009 14:06:10 -0700 |
parents | 0fbdb4381b99 |
children | 1316cec51b4d |
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/* * Copyright 2001-2009 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ class G1CollectorPolicy; class SurvRateGroup : public CHeapObj { private: G1CollectorPolicy* _g1p; const char* _name; size_t _stats_arrays_length; double* _surv_rate; double* _accum_surv_rate_pred; double _last_pred; double _accum_surv_rate; TruncatedSeq** _surv_rate_pred; NumberSeq** _summary_surv_rates; size_t _summary_surv_rates_len; size_t _summary_surv_rates_max_len; int _all_regions_allocated; size_t _region_num; size_t _scan_only_prefix; size_t _setup_seq_num; public: SurvRateGroup(G1CollectorPolicy* g1p, const char* name, size_t summary_surv_rates_len); void reset(); void start_adding_regions(); void stop_adding_regions(); void record_scan_only_prefix(size_t scan_only_prefix); void record_surviving_words(int age_in_group, size_t surv_words); void all_surviving_words_recorded(bool propagate); const char* name() { return _name; } size_t region_num() { return _region_num; } size_t scan_only_length() { return _scan_only_prefix; } double accum_surv_rate_pred(int age) { assert(age >= 0, "must be"); if ((size_t)age < _stats_arrays_length) return _accum_surv_rate_pred[age]; else { double diff = (double) (age - _stats_arrays_length + 1); return _accum_surv_rate_pred[_stats_arrays_length-1] + diff * _last_pred; } } double accum_surv_rate(size_t adjustment); TruncatedSeq* get_seq(size_t age) { if (age >= _setup_seq_num) { guarantee( _setup_seq_num > 0, "invariant" ); age = _setup_seq_num-1; } TruncatedSeq* seq = _surv_rate_pred[age]; guarantee( seq != NULL, "invariant" ); return seq; } int next_age_index(); int age_in_group(int age_index) { int ret = (int) (_all_regions_allocated - age_index); assert( ret >= 0, "invariant" ); return ret; } int recalculate_age_index(int age_index) { int new_age_index = (int) _scan_only_prefix - age_in_group(age_index); guarantee( new_age_index >= 0, "invariant" ); return new_age_index; } void finished_recalculating_age_indexes() { _all_regions_allocated = (int) _scan_only_prefix; } #ifndef PRODUCT void print(); void print_surv_rate_summary(); #endif // PRODUCT };