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  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "incls/_precompiled.incl"
  26 #include "incls/_psAdaptiveSizePolicy.cpp.incl"








  27 
  28 #include <math.h>
  29 
  30 PSAdaptiveSizePolicy::PSAdaptiveSizePolicy(size_t init_eden_size,
  31                                            size_t init_promo_size,
  32                                            size_t init_survivor_size,
  33                                            size_t intra_generation_alignment,
  34                                            double gc_pause_goal_sec,
  35                                            double gc_minor_pause_goal_sec,
  36                                            uint gc_cost_ratio) :
  37      AdaptiveSizePolicy(init_eden_size,
  38                         init_promo_size,
  39                         init_survivor_size,
  40                         gc_pause_goal_sec,
  41                         gc_cost_ratio),
  42      _collection_cost_margin_fraction(AdaptiveSizePolicyCollectionCostMargin/
  43        100.0),
  44      _intra_generation_alignment(intra_generation_alignment),
  45      _live_at_last_full_gc(init_promo_size),
  46      _gc_minor_pause_goal_sec(gc_minor_pause_goal_sec),

   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  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "gc_implementation/parallelScavenge/generationSizer.hpp"
  27 #include "gc_implementation/parallelScavenge/psAdaptiveSizePolicy.hpp"
  28 #include "gc_implementation/parallelScavenge/psGCAdaptivePolicyCounters.hpp"
  29 #include "gc_implementation/parallelScavenge/psScavenge.hpp"
  30 #include "gc_implementation/shared/gcPolicyCounters.hpp"
  31 #include "gc_interface/gcCause.hpp"
  32 #include "memory/collectorPolicy.hpp"
  33 #include "runtime/timer.hpp"
  34 #include "utilities/top.hpp"
  35 
  36 #include <math.h>
  37 
  38 PSAdaptiveSizePolicy::PSAdaptiveSizePolicy(size_t init_eden_size,
  39                                            size_t init_promo_size,
  40                                            size_t init_survivor_size,
  41                                            size_t intra_generation_alignment,
  42                                            double gc_pause_goal_sec,
  43                                            double gc_minor_pause_goal_sec,
  44                                            uint gc_cost_ratio) :
  45      AdaptiveSizePolicy(init_eden_size,
  46                         init_promo_size,
  47                         init_survivor_size,
  48                         gc_pause_goal_sec,
  49                         gc_cost_ratio),
  50      _collection_cost_margin_fraction(AdaptiveSizePolicyCollectionCostMargin/
  51        100.0),
  52      _intra_generation_alignment(intra_generation_alignment),
  53      _live_at_last_full_gc(init_promo_size),
  54      _gc_minor_pause_goal_sec(gc_minor_pause_goal_sec),