1 /*
   2  * Copyright (c) 2005, 2008, Oracle and/or its affiliates. All rights reserved.
   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  *
  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/_asParNewGeneration.cpp.incl"









  27 
  28 ASParNewGeneration::ASParNewGeneration(ReservedSpace rs,
  29                                        size_t initial_byte_size,
  30                                        size_t min_byte_size,
  31                                        int level) :
  32   ParNewGeneration(rs, initial_byte_size, level),
  33   _min_gen_size(min_byte_size) {}
  34 
  35 const char* ASParNewGeneration::name() const {
  36   return "adaptive size par new generation";
  37 }
  38 
  39 void ASParNewGeneration::adjust_desired_tenuring_threshold() {
  40   assert(UseAdaptiveSizePolicy,
  41     "Should only be used with UseAdaptiveSizePolicy");
  42 }
  43 
  44 void ASParNewGeneration::resize(size_t eden_size, size_t survivor_size) {
  45   // Resize the generation if needed. If the generation resize
  46   // reports false, do not attempt to resize the spaces.

   1 /*
   2  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
   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  *
  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/concurrentMarkSweep/cmsAdaptiveSizePolicy.hpp"
  27 #include "gc_implementation/concurrentMarkSweep/cmsGCAdaptivePolicyCounters.hpp"
  28 #include "gc_implementation/parNew/asParNewGeneration.hpp"
  29 #include "gc_implementation/parNew/parNewGeneration.hpp"
  30 #include "gc_implementation/shared/markSweep.inline.hpp"
  31 #include "gc_implementation/shared/spaceDecorator.hpp"
  32 #include "memory/defNewGeneration.inline.hpp"
  33 #include "memory/referencePolicy.hpp"
  34 #include "oops/markOop.inline.hpp"
  35 #include "oops/oop.pcgc.inline.hpp"
  36 
  37 ASParNewGeneration::ASParNewGeneration(ReservedSpace rs,
  38                                        size_t initial_byte_size,
  39                                        size_t min_byte_size,
  40                                        int level) :
  41   ParNewGeneration(rs, initial_byte_size, level),
  42   _min_gen_size(min_byte_size) {}
  43 
  44 const char* ASParNewGeneration::name() const {
  45   return "adaptive size par new generation";
  46 }
  47 
  48 void ASParNewGeneration::adjust_desired_tenuring_threshold() {
  49   assert(UseAdaptiveSizePolicy,
  50     "Should only be used with UseAdaptiveSizePolicy");
  51 }
  52 
  53 void ASParNewGeneration::resize(size_t eden_size, size_t survivor_size) {
  54   // Resize the generation if needed. If the generation resize
  55   // reports false, do not attempt to resize the spaces.