jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/g1/survRateGroup.hpp@c2844108a708 (annotated)

src/share/vm/gc_implementation/g1/survRateGroup.hpp@c2844108a708 (annotated)

src/share/vm/gc_implementation/g1/survRateGroup.hpp

Thu, 23 Oct 2014 12:02:08 -0700

author: asaha
date: Thu, 23 Oct 2014 12:02:08 -0700
changeset 7476: c2844108a708
parent 4153: b9a9ed0f8eeb
child 6876: 710a3c8b516e
permissions: -rw-r--r--

Merge

 /*
  * Copyright (c) 2001, 2012, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_SURVRATEGROUP_HPP
 #define SHARE_VM_GC_IMPLEMENTATION_G1_SURVRATEGROUP_HPP
 #include "utilities/numberSeq.hpp"
 class G1CollectorPolicy;
 class SurvRateGroup : public CHeapObj<mtGC> {
 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 _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_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; }
   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;
   }
   void finished_recalculating_age_indexes() {
     _all_regions_allocated = 0;
   }
 #ifndef PRODUCT
   void print();
   void print_surv_rate_summary();
 #endif // PRODUCT
 };
 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_SURVRATEGROUP_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/gc_implementation/g1/survRateGroup.hpp@c2844108a708 (annotated)

src/share/vm/gc_implementation/g1/survRateGroup.hpp