60 update_all(); 61 } 62 } 63 64 void G1YoungGenerationCounters::update_all() { 65 size_t committed = 66 G1MonitoringSupport::pad_capacity(_g1mm->young_gen_committed(), 3); 67 _current_size->set_value(committed); 68 } 69 70 void G1OldGenerationCounters::update_all() { 71 size_t committed = 72 G1MonitoringSupport::pad_capacity(_g1mm->old_gen_committed()); 73 _current_size->set_value(committed); 74 } 75 76 G1MonitoringSupport::G1MonitoringSupport(G1CollectedHeap* g1h) : 77 _g1h(g1h), 78 _incremental_collection_counters(NULL), 79 _full_collection_counters(NULL), 80 _old_collection_counters(NULL), 81 _old_space_counters(NULL), 82 _young_collection_counters(NULL), 83 _eden_counters(NULL), 84 _from_counters(NULL), 85 _to_counters(NULL), 86 87 _overall_reserved(0), 88 _overall_committed(0), _overall_used(0), 89 _young_region_num(0), 90 _young_gen_committed(0), 91 _eden_committed(0), _eden_used(0), 92 _survivor_committed(0), _survivor_used(0), 93 _old_committed(0), _old_used(0) { 94 95 _overall_reserved = g1h->max_capacity(); 96 recalculate_sizes(); 97 98 // Counters for GC collections 99 // 100 // name "collector.0". In a generational collector this would be the 101 // young generation collection. 102 _incremental_collection_counters = 103 new CollectorCounters("G1 incremental collections", 0); 104 // name "collector.1". In a generational collector this would be the 105 // old generation collection. 106 _full_collection_counters = 107 new CollectorCounters("G1 stop-the-world full collections", 1); 108 109 // timer sampling for all counters supporting sampling only update the 110 // used value. See the take_sample() method. G1 requires both used and 111 // capacity updated so sampling is not currently used. It might 112 // be sufficient to update all counters in take_sample() even though 113 // take_sample() only returns "used". When sampling was used, there 114 // were some anomolous values emitted which may have been the consequence 115 // of not updating all values simultaneously (i.e., see the calculation done 116 // in eden_space_used(), is it possible that the values used to 117 // calculate either eden_used or survivor_used are being updated by 118 // the collector when the sample is being done?). 119 const bool sampled = false; 120 121 // "Generation" and "Space" counters. 122 // 123 // name "generation.1" This is logically the old generation in 124 // generational GC terms. The "1, 1" parameters are for 125 // the n-th generation (=1) with 1 space. 126 // Counters are created from minCapacity, maxCapacity, and capacity 127 _old_collection_counters = new G1OldGenerationCounters(this, "old"); | 60 update_all(); 61 } 62 } 63 64 void G1YoungGenerationCounters::update_all() { 65 size_t committed = 66 G1MonitoringSupport::pad_capacity(_g1mm->young_gen_committed(), 3); 67 _current_size->set_value(committed); 68 } 69 70 void G1OldGenerationCounters::update_all() { 71 size_t committed = 72 G1MonitoringSupport::pad_capacity(_g1mm->old_gen_committed()); 73 _current_size->set_value(committed); 74 } 75 76 G1MonitoringSupport::G1MonitoringSupport(G1CollectedHeap* g1h) : 77 _g1h(g1h), 78 _incremental_collection_counters(NULL), 79 _full_collection_counters(NULL), 80 _conc_collection_counters(NULL), 81 _old_collection_counters(NULL), 82 _old_space_counters(NULL), 83 _young_collection_counters(NULL), 84 _eden_counters(NULL), 85 _from_counters(NULL), 86 _to_counters(NULL), 87 88 _overall_reserved(0), 89 _overall_committed(0), _overall_used(0), 90 _young_region_num(0), 91 _young_gen_committed(0), 92 _eden_committed(0), _eden_used(0), 93 _survivor_committed(0), _survivor_used(0), 94 _old_committed(0), _old_used(0) { 95 96 _overall_reserved = g1h->max_capacity(); 97 recalculate_sizes(); 98 99 // Counters for GC collections 100 // 101 // name "collector.0". In a generational collector this would be the 102 // young generation collection. 103 _incremental_collection_counters = 104 new CollectorCounters("G1 incremental collections", 0); 105 // name "collector.1". In a generational collector this would be the 106 // old generation collection. 107 _full_collection_counters = 108 new CollectorCounters("G1 stop-the-world full collections", 1); 109 // name "collector.2". In a generational collector this would be the 110 // STW phases in concurrent collection. 111 _conc_collection_counters = 112 new CollectorCounters("G1 stop-the-world phases", 2); 113 114 // timer sampling for all counters supporting sampling only update the 115 // used value. See the take_sample() method. G1 requires both used and 116 // capacity updated so sampling is not currently used. It might 117 // be sufficient to update all counters in take_sample() even though 118 // take_sample() only returns "used". When sampling was used, there 119 // were some anomolous values emitted which may have been the consequence 120 // of not updating all values simultaneously (i.e., see the calculation done 121 // in eden_space_used(), is it possible that the values used to 122 // calculate either eden_used or survivor_used are being updated by 123 // the collector when the sample is being done?). 124 const bool sampled = false; 125 126 // "Generation" and "Space" counters. 127 // 128 // name "generation.1" This is logically the old generation in 129 // generational GC terms. The "1, 1" parameters are for 130 // the n-th generation (=1) with 1 space. 131 // Counters are created from minCapacity, maxCapacity, and capacity 132 _old_collection_counters = new G1OldGenerationCounters(this, "old"); |