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/_g1RemSet.cpp.incl"











  27 
  28 #define CARD_REPEAT_HISTO 0
  29 
  30 #if CARD_REPEAT_HISTO
  31 static size_t ct_freq_sz;
  32 static jbyte* ct_freq = NULL;
  33 
  34 void init_ct_freq_table(size_t heap_sz_bytes) {
  35   if (ct_freq == NULL) {
  36     ct_freq_sz = heap_sz_bytes/CardTableModRefBS::card_size;
  37     ct_freq = new jbyte[ct_freq_sz];
  38     for (size_t j = 0; j < ct_freq_sz; j++) ct_freq[j] = 0;
  39   }
  40 }
  41 
  42 void ct_freq_note_card(size_t index) {
  43   assert(0 <= index && index < ct_freq_sz, "Bounds error.");
  44   if (ct_freq[index] < 100) { ct_freq[index]++; }
  45 }
  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/g1/bufferingOopClosure.hpp"
  27 #include "gc_implementation/g1/concurrentG1Refine.hpp"
  28 #include "gc_implementation/g1/concurrentG1RefineThread.hpp"
  29 #include "gc_implementation/g1/g1BlockOffsetTable.inline.hpp"
  30 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
  31 #include "gc_implementation/g1/g1CollectorPolicy.hpp"
  32 #include "gc_implementation/g1/g1OopClosures.inline.hpp"
  33 #include "gc_implementation/g1/g1RemSet.inline.hpp"
  34 #include "gc_implementation/g1/heapRegionSeq.inline.hpp"
  35 #include "memory/iterator.hpp"
  36 #include "oops/oop.inline.hpp"
  37 #include "utilities/intHisto.hpp"
  38 
  39 #define CARD_REPEAT_HISTO 0
  40 
  41 #if CARD_REPEAT_HISTO
  42 static size_t ct_freq_sz;
  43 static jbyte* ct_freq = NULL;
  44 
  45 void init_ct_freq_table(size_t heap_sz_bytes) {
  46   if (ct_freq == NULL) {
  47     ct_freq_sz = heap_sz_bytes/CardTableModRefBS::card_size;
  48     ct_freq = new jbyte[ct_freq_sz];
  49     for (size_t j = 0; j < ct_freq_sz; j++) ct_freq[j] = 0;
  50   }
  51 }
  52 
  53 void ct_freq_note_card(size_t index) {
  54   assert(0 <= index && index < ct_freq_sz, "Bounds error.");
  55   if (ct_freq[index] < 100) { ct_freq[index]++; }
  56 }
  57