src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp

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   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/_compactibleFreeListSpace.cpp.incl"

















  27 
  28 /////////////////////////////////////////////////////////////////////////
  29 //// CompactibleFreeListSpace
  30 /////////////////////////////////////////////////////////////////////////
  31 
  32 // highest ranked  free list lock rank
  33 int CompactibleFreeListSpace::_lockRank = Mutex::leaf + 3;
  34 
  35 // Defaults are 0 so things will break badly if incorrectly initialized.
  36 int CompactibleFreeListSpace::IndexSetStart  = 0;
  37 int CompactibleFreeListSpace::IndexSetStride = 0;
  38 
  39 size_t MinChunkSize = 0;
  40 
  41 void CompactibleFreeListSpace::set_cms_values() {
  42   // Set CMS global values
  43   assert(MinChunkSize == 0, "already set");
  44   #define numQuanta(x,y) ((x+y-1)/y)
  45   MinChunkSize = numQuanta(sizeof(FreeChunk), MinObjAlignmentInBytes) * MinObjAlignment;
  46 




   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/cmsLockVerifier.hpp"
  27 #include "gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp"
  28 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.inline.hpp"
  29 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp"
  30 #include "gc_implementation/shared/liveRange.hpp"
  31 #include "gc_implementation/shared/spaceDecorator.hpp"
  32 #include "gc_interface/collectedHeap.hpp"
  33 #include "memory/allocation.inline.hpp"
  34 #include "memory/blockOffsetTable.inline.hpp"
  35 #include "memory/resourceArea.hpp"
  36 #include "memory/universe.inline.hpp"
  37 #include "oops/oop.inline.hpp"
  38 #include "runtime/globals.hpp"
  39 #include "runtime/handles.inline.hpp"
  40 #include "runtime/init.hpp"
  41 #include "runtime/java.hpp"
  42 #include "runtime/vmThread.hpp"
  43 #include "utilities/copy.hpp"
  44 
  45 /////////////////////////////////////////////////////////////////////////
  46 //// CompactibleFreeListSpace
  47 /////////////////////////////////////////////////////////////////////////
  48 
  49 // highest ranked  free list lock rank
  50 int CompactibleFreeListSpace::_lockRank = Mutex::leaf + 3;
  51 
  52 // Defaults are 0 so things will break badly if incorrectly initialized.
  53 int CompactibleFreeListSpace::IndexSetStart  = 0;
  54 int CompactibleFreeListSpace::IndexSetStride = 0;
  55 
  56 size_t MinChunkSize = 0;
  57 
  58 void CompactibleFreeListSpace::set_cms_values() {
  59   // Set CMS global values
  60   assert(MinChunkSize == 0, "already set");
  61   #define numQuanta(x,y) ((x+y-1)/y)
  62   MinChunkSize = numQuanta(sizeof(FreeChunk), MinObjAlignmentInBytes) * MinObjAlignment;
  63