< prev index next >

src/hotspot/share/gc/g1/heapRegion.cpp

Print this page
rev 52676 : imported patch AMGC-impl


   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 "code/nmethod.hpp"
  27 #include "gc/g1/g1BlockOffsetTable.inline.hpp"
  28 #include "gc/g1/g1CollectedHeap.inline.hpp"

  29 #include "gc/g1/g1HeapRegionTraceType.hpp"
  30 #include "gc/g1/g1OopClosures.inline.hpp"
  31 #include "gc/g1/heapRegion.inline.hpp"
  32 #include "gc/g1/heapRegionBounds.inline.hpp"
  33 #include "gc/g1/heapRegionManager.inline.hpp"
  34 #include "gc/g1/heapRegionRemSet.hpp"
  35 #include "gc/g1/heapRegionTracer.hpp"
  36 #include "gc/shared/genOopClosures.inline.hpp"
  37 #include "gc/shared/space.inline.hpp"
  38 #include "logging/log.hpp"
  39 #include "logging/logStream.hpp"
  40 #include "memory/iterator.inline.hpp"
  41 #include "memory/resourceArea.hpp"
  42 #include "oops/access.inline.hpp"
  43 #include "oops/compressedOops.inline.hpp"
  44 #include "oops/oop.inline.hpp"
  45 #include "runtime/atomic.hpp"
  46 #include "runtime/orderAccess.hpp"
  47 #include "utilities/growableArray.hpp"
  48 


 223   assert(capacity() == HeapRegion::GrainBytes, "pre-condition");
 224   _humongous_start_region = NULL;
 225 
 226   _bot_part.set_object_can_span(false);
 227 }
 228 
 229 HeapRegion::HeapRegion(uint hrm_index,
 230                        G1BlockOffsetTable* bot,
 231                        MemRegion mr) :
 232     G1ContiguousSpace(bot),
 233     _rem_set(NULL),
 234     _hrm_index(hrm_index),
 235     _type(),
 236     _humongous_start_region(NULL),
 237     _evacuation_failed(false),
 238     _next(NULL), _prev(NULL),
 239 #ifdef ASSERT
 240     _containing_set(NULL),
 241 #endif
 242     _prev_marked_bytes(0), _next_marked_bytes(0), _gc_efficiency(0.0),
 243     _young_index_in_cset(-1), _surv_rate_group(NULL), _age_index(-1),

 244     _prev_top_at_mark_start(NULL), _next_top_at_mark_start(NULL),
 245     _recorded_rs_length(0), _predicted_elapsed_time_ms(0)
 246 {
 247   _rem_set = new HeapRegionRemSet(bot, this);
 248 
 249   initialize(mr);
 250 }
 251 
 252 void HeapRegion::initialize(MemRegion mr, bool clear_space, bool mangle_space) {
 253   assert(_rem_set->is_empty(), "Remembered set must be empty");
 254 
 255   G1ContiguousSpace::initialize(mr, clear_space, mangle_space);
 256 
 257   hr_clear(false /*par*/, false /*clear_space*/);
 258   set_top(bottom());
 259 }
 260 
 261 void HeapRegion::report_region_type_change(G1HeapRegionTraceType::Type to) {
 262   HeapRegionTracer::send_region_type_change(_hrm_index,
 263                                             get_trace_type(),




   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 "code/nmethod.hpp"
  27 #include "gc/g1/g1BlockOffsetTable.inline.hpp"
  28 #include "gc/g1/g1CollectedHeap.inline.hpp"
  29 #include "gc/g1/g1CollectionSet.hpp"
  30 #include "gc/g1/g1HeapRegionTraceType.hpp"
  31 #include "gc/g1/g1OopClosures.inline.hpp"
  32 #include "gc/g1/heapRegion.inline.hpp"
  33 #include "gc/g1/heapRegionBounds.inline.hpp"
  34 #include "gc/g1/heapRegionManager.inline.hpp"
  35 #include "gc/g1/heapRegionRemSet.hpp"
  36 #include "gc/g1/heapRegionTracer.hpp"
  37 #include "gc/shared/genOopClosures.inline.hpp"
  38 #include "gc/shared/space.inline.hpp"
  39 #include "logging/log.hpp"
  40 #include "logging/logStream.hpp"
  41 #include "memory/iterator.inline.hpp"
  42 #include "memory/resourceArea.hpp"
  43 #include "oops/access.inline.hpp"
  44 #include "oops/compressedOops.inline.hpp"
  45 #include "oops/oop.inline.hpp"
  46 #include "runtime/atomic.hpp"
  47 #include "runtime/orderAccess.hpp"
  48 #include "utilities/growableArray.hpp"
  49 


 224   assert(capacity() == HeapRegion::GrainBytes, "pre-condition");
 225   _humongous_start_region = NULL;
 226 
 227   _bot_part.set_object_can_span(false);
 228 }
 229 
 230 HeapRegion::HeapRegion(uint hrm_index,
 231                        G1BlockOffsetTable* bot,
 232                        MemRegion mr) :
 233     G1ContiguousSpace(bot),
 234     _rem_set(NULL),
 235     _hrm_index(hrm_index),
 236     _type(),
 237     _humongous_start_region(NULL),
 238     _evacuation_failed(false),
 239     _next(NULL), _prev(NULL),
 240 #ifdef ASSERT
 241     _containing_set(NULL),
 242 #endif
 243     _prev_marked_bytes(0), _next_marked_bytes(0), _gc_efficiency(0.0),
 244     _index_in_opt_cset(G1OptionalCSet::InvalidCSetIndex), _young_index_in_cset(-1),
 245     _surv_rate_group(NULL), _age_index(-1),
 246     _prev_top_at_mark_start(NULL), _next_top_at_mark_start(NULL),
 247     _recorded_rs_length(0), _predicted_elapsed_time_ms(0)
 248 {
 249   _rem_set = new HeapRegionRemSet(bot, this);
 250 
 251   initialize(mr);
 252 }
 253 
 254 void HeapRegion::initialize(MemRegion mr, bool clear_space, bool mangle_space) {
 255   assert(_rem_set->is_empty(), "Remembered set must be empty");
 256 
 257   G1ContiguousSpace::initialize(mr, clear_space, mangle_space);
 258 
 259   hr_clear(false /*par*/, false /*clear_space*/);
 260   set_top(bottom());
 261 }
 262 
 263 void HeapRegion::report_region_type_change(G1HeapRegionTraceType::Type to) {
 264   HeapRegionTracer::send_region_type_change(_hrm_index,
 265                                             get_trace_type(),


< prev index next >