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src/share/vm/gc/parallel/psPromotionManager.cpp

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rev 8362 : 8079792: GC directory structure cleanup
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   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/parallelScavengeHeap.hpp"
  27 #include "gc_implementation/parallelScavenge/psOldGen.hpp"
  28 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp"
  29 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
  30 #include "gc_implementation/shared/gcTrace.hpp"
  31 #include "gc_implementation/shared/mutableSpace.hpp"

  32 #include "memory/allocation.inline.hpp"
  33 #include "memory/memRegion.hpp"
  34 #include "memory/padded.inline.hpp"
  35 #include "oops/instanceKlass.inline.hpp"
  36 #include "oops/instanceMirrorKlass.inline.hpp"
  37 #include "oops/objArrayKlass.inline.hpp"
  38 #include "oops/oop.inline.hpp"
  39 #include "utilities/taskqueue.inline.hpp"
  40 
  41 PaddedEnd<PSPromotionManager>* PSPromotionManager::_manager_array = NULL;
  42 OopStarTaskQueueSet*           PSPromotionManager::_stack_array_depth = NULL;
  43 PSOldGen*                      PSPromotionManager::_old_gen = NULL;
  44 MutableSpace*                  PSPromotionManager::_young_space = NULL;
  45 
  46 void PSPromotionManager::initialize() {
  47   ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
  48 
  49   _old_gen = heap->old_gen();
  50   _young_space = heap->young_gen()->to_space();
  51 
  52   // To prevent false sharing, we pad the PSPromotionManagers
  53   // and make sure that the first instance starts at a cache line.
  54   assert(_manager_array == NULL, "Attempt to initialize twice");
  55   _manager_array = PaddedArray<PSPromotionManager, mtGC>::create_unfreeable(ParallelGCThreads + 1);
  56   guarantee(_manager_array != NULL, "Could not initialize promotion manager");
  57 
  58   _stack_array_depth = new OopStarTaskQueueSet(ParallelGCThreads);
  59   guarantee(_stack_array_depth != NULL, "Could not initialize promotion manager");




   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/parallel/mutableSpace.hpp"
  27 #include "gc/parallel/parallelScavengeHeap.hpp"
  28 #include "gc/parallel/psOldGen.hpp"
  29 #include "gc/parallel/psPromotionManager.inline.hpp"
  30 #include "gc/parallel/psScavenge.inline.hpp"
  31 #include "gc/shared/gcTrace.hpp"
  32 #include "gc/shared/taskqueue.inline.hpp"
  33 #include "memory/allocation.inline.hpp"
  34 #include "memory/memRegion.hpp"
  35 #include "memory/padded.inline.hpp"
  36 #include "oops/instanceKlass.inline.hpp"
  37 #include "oops/instanceMirrorKlass.inline.hpp"
  38 #include "oops/objArrayKlass.inline.hpp"
  39 #include "oops/oop.inline.hpp"

  40 
  41 PaddedEnd<PSPromotionManager>* PSPromotionManager::_manager_array = NULL;
  42 OopStarTaskQueueSet*           PSPromotionManager::_stack_array_depth = NULL;
  43 PSOldGen*                      PSPromotionManager::_old_gen = NULL;
  44 MutableSpace*                  PSPromotionManager::_young_space = NULL;
  45 
  46 void PSPromotionManager::initialize() {
  47   ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
  48 
  49   _old_gen = heap->old_gen();
  50   _young_space = heap->young_gen()->to_space();
  51 
  52   // To prevent false sharing, we pad the PSPromotionManagers
  53   // and make sure that the first instance starts at a cache line.
  54   assert(_manager_array == NULL, "Attempt to initialize twice");
  55   _manager_array = PaddedArray<PSPromotionManager, mtGC>::create_unfreeable(ParallelGCThreads + 1);
  56   guarantee(_manager_array != NULL, "Could not initialize promotion manager");
  57 
  58   _stack_array_depth = new OopStarTaskQueueSet(ParallelGCThreads);
  59   guarantee(_stack_array_depth != NULL, "Could not initialize promotion manager");


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