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comparison src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp @ 1707:0ce1569c90e5

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6963209: G1: remove the concept of abandoned pauses Summary: As part of 6944166 we disabled the concept of abandoned pauses (i.e., if the collection set is empty, we would still try to do a pause even if it is to update the RSets and scan the roots). This changeset removes the code and structures associated with abandoned pauses. Reviewed-by: iveresov, johnc
author tonyp
date Wed, 04 Aug 2010 13:03:23 -0400
parents 2d160770d2e5
children f95d63e2154a
comparison
equal deleted inserted replaced
1706:9d7a8ab3736b 1707:0ce1569c90e5
74 public MainBodySummary { 74 public MainBodySummary {
75 public: 75 public:
76 virtual MainBodySummary* main_body_summary() { return this; } 76 virtual MainBodySummary* main_body_summary() { return this; }
77 }; 77 };
78 78
79 class AbandonedSummary: public PauseSummary {
80 };
81
82 class G1CollectorPolicy: public CollectorPolicy { 79 class G1CollectorPolicy: public CollectorPolicy {
83 protected: 80 protected:
84 // The number of pauses during the execution. 81 // The number of pauses during the execution.
85 long _n_pauses; 82 long _n_pauses;
86 83
146 TruncatedSeq* _concurrent_mark_init_times_ms; 143 TruncatedSeq* _concurrent_mark_init_times_ms;
147 TruncatedSeq* _concurrent_mark_remark_times_ms; 144 TruncatedSeq* _concurrent_mark_remark_times_ms;
148 TruncatedSeq* _concurrent_mark_cleanup_times_ms; 145 TruncatedSeq* _concurrent_mark_cleanup_times_ms;
149 146
150 Summary* _summary; 147 Summary* _summary;
151 AbandonedSummary* _abandoned_summary;
152 148
153 NumberSeq* _all_pause_times_ms; 149 NumberSeq* _all_pause_times_ms;
154 NumberSeq* _all_full_gc_times_ms; 150 NumberSeq* _all_full_gc_times_ms;
155 double _stop_world_start; 151 double _stop_world_start;
156 NumberSeq* _all_stop_world_times_ms; 152 NumberSeq* _all_stop_world_times_ms;
571 void check_other_times(int level, 567 void check_other_times(int level,
572 NumberSeq* other_times_ms, 568 NumberSeq* other_times_ms,
573 NumberSeq* calc_other_times_ms) const; 569 NumberSeq* calc_other_times_ms) const;
574 570
575 void print_summary (PauseSummary* stats) const; 571 void print_summary (PauseSummary* stats) const;
576 void print_abandoned_summary(PauseSummary* summary) const;
577 572
578 void print_summary (int level, const char* str, NumberSeq* seq) const; 573 void print_summary (int level, const char* str, NumberSeq* seq) const;
579 void print_summary_sd (int level, const char* str, NumberSeq* seq) const; 574 void print_summary_sd (int level, const char* str, NumberSeq* seq) const;
580 575
581 double avg_value (double* data); 576 double avg_value (double* data);
884 virtual void record_concurrent_pause_end(); 879 virtual void record_concurrent_pause_end();
885 880
886 virtual void record_collection_pause_end_CH_strong_roots(); 881 virtual void record_collection_pause_end_CH_strong_roots();
887 virtual void record_collection_pause_end_G1_strong_roots(); 882 virtual void record_collection_pause_end_G1_strong_roots();
888 883
889 virtual void record_collection_pause_end(bool abandoned); 884 virtual void record_collection_pause_end();
890 885
891 // Record the fact that a full collection occurred. 886 // Record the fact that a full collection occurred.
892 virtual void record_full_collection_start(); 887 virtual void record_full_collection_start();
893 virtual void record_full_collection_end(); 888 virtual void record_full_collection_end();
894 889
997 virtual bool should_do_collection_pause(size_t word_size) = 0; 992 virtual bool should_do_collection_pause(size_t word_size) = 0;
998 993
999 // Choose a new collection set. Marks the chosen regions as being 994 // Choose a new collection set. Marks the chosen regions as being
1000 // "in_collection_set", and links them together. The head and number of 995 // "in_collection_set", and links them together. The head and number of
1001 // the collection set are available via access methods. 996 // the collection set are available via access methods.
1002 virtual bool choose_collection_set(double target_pause_time_ms) = 0; 997 virtual void choose_collection_set(double target_pause_time_ms) = 0;
1003 998
1004 // The head of the list (via "next_in_collection_set()") representing the 999 // The head of the list (via "next_in_collection_set()") representing the
1005 // current collection set. 1000 // current collection set.
1006 HeapRegion* collection_set() { return _collection_set; } 1001 HeapRegion* collection_set() { return _collection_set; }
1007 1002
1254 class G1CollectorPolicy_BestRegionsFirst: public G1CollectorPolicy { 1249 class G1CollectorPolicy_BestRegionsFirst: public G1CollectorPolicy {
1255 CollectionSetChooser* _collectionSetChooser; 1250 CollectionSetChooser* _collectionSetChooser;
1256 // If the estimated is less then desirable, resize if possible. 1251 // If the estimated is less then desirable, resize if possible.
1257 void expand_if_possible(size_t numRegions); 1252 void expand_if_possible(size_t numRegions);
1258 1253
1259 virtual bool choose_collection_set(double target_pause_time_ms); 1254 virtual void choose_collection_set(double target_pause_time_ms);
1260 virtual void record_collection_pause_start(double start_time_sec, 1255 virtual void record_collection_pause_start(double start_time_sec,
1261 size_t start_used); 1256 size_t start_used);
1262 virtual void record_concurrent_mark_cleanup_end(size_t freed_bytes, 1257 virtual void record_concurrent_mark_cleanup_end(size_t freed_bytes,
1263 size_t max_live_bytes); 1258 size_t max_live_bytes);
1264 virtual void record_full_collection_end(); 1259 virtual void record_full_collection_end();
1265 1260
1266 public: 1261 public:
1267 G1CollectorPolicy_BestRegionsFirst() { 1262 G1CollectorPolicy_BestRegionsFirst() {
1268 _collectionSetChooser = new CollectionSetChooser(); 1263 _collectionSetChooser = new CollectionSetChooser();
1269 } 1264 }
1270 void record_collection_pause_end(bool abandoned); 1265 void record_collection_pause_end();
1271 bool should_do_collection_pause(size_t word_size); 1266 bool should_do_collection_pause(size_t word_size);
1272 // This is not needed any more, after the CSet choosing code was 1267 // This is not needed any more, after the CSet choosing code was
1273 // changed to use the pause prediction work. But let's leave the 1268 // changed to use the pause prediction work. But let's leave the
1274 // hook in just in case. 1269 // hook in just in case.
1275 void note_change_in_marked_bytes(HeapRegion* r) { } 1270 void note_change_in_marked_bytes(HeapRegion* r) { }