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comparison src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp @ 17755:96b1c2e06e25

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8027295: Free CSet takes ~50% of young pause time Summary: Improve fast card cache iteration and avoid taking locks when freeing the collection set. Reviewed-by: brutisso
author tschatzl
date Mon, 24 Mar 2014 15:30:36 +0100
parents d7070f371770
children ae7336d6337e
comparison
equal deleted inserted replaced
17754:d7070f371770 17755:96b1c2e06e25
729 return PerRegionTable::fl_mem_size(); 729 return PerRegionTable::fl_mem_size();
730 } 730 }
731 731
732 void OtherRegionsTable::clear_fcc() { 732 void OtherRegionsTable::clear_fcc() {
733 uint hrs_idx = hr()->hrs_index(); 733 uint hrs_idx = hr()->hrs_index();
734 for (uint i = 0; i < HeapRegionRemSet::num_par_rem_sets(); i++) { 734 uint num_par_remsets = HeapRegionRemSet::num_par_rem_sets();
735 for (uint i = 0; i < num_par_remsets; i++) {
735 _from_card_cache[i][hrs_idx] = -1; 736 _from_card_cache[i][hrs_idx] = -1;
736 } 737 }
737 } 738 }
738 739
739 void OtherRegionsTable::clear() { 740 void OtherRegionsTable::clear() {