957
958 private:
959 static STWGCTimer _gc_timer;
960 static ParallelOldTracer _gc_tracer;
961 static elapsedTimer _accumulated_time;
962 static unsigned int _total_invocations;
963 static unsigned int _maximum_compaction_gc_num;
964 static jlong _time_of_last_gc; // ms
965 static CollectorCounters* _counters;
966 static ParMarkBitMap _mark_bitmap;
967 static ParallelCompactData _summary_data;
968 static IsAliveClosure _is_alive_closure;
969 static SpaceInfo _space_info[last_space_id];
970 static bool _print_phases;
971 static AdjustPointerClosure _adjust_pointer_closure;
972 static AdjustKlassClosure _adjust_klass_closure;
973
974 // Reference processing (used in ...follow_contents)
975 static ReferenceProcessor* _ref_processor;
976
977 // Updated location of intArrayKlassObj.
978 static Klass* _updated_int_array_klass_obj;
979
980 // Values computed at initialization and used by dead_wood_limiter().
981 static double _dwl_mean;
982 static double _dwl_std_dev;
983 static double _dwl_first_term;
984 static double _dwl_adjustment;
985 #ifdef ASSERT
986 static bool _dwl_initialized;
987 #endif // #ifdef ASSERT
988
989
990 public:
991 static ParallelOldTracer* gc_tracer() { return &_gc_tracer; }
992
993 private:
994
995 static void initialize_space_info();
996
997 // Return true if details about individual phases should be printed.
998 static inline bool print_phases();
999
1132 // Perform initialization for PSParallelCompact that requires
1133 // allocations. This should be called during the VM initialization
1134 // at a pointer where it would be appropriate to return a JNI_ENOMEM
1135 // in the event of a failure.
1136 static bool initialize();
1137
1138 // Closure accessors
1139 static PSParallelCompact::AdjustPointerClosure* adjust_pointer_closure() {
1140 return &_adjust_pointer_closure;
1141 }
1142 static KlassClosure* adjust_klass_closure() { return (KlassClosure*)&_adjust_klass_closure; }
1143 static BoolObjectClosure* is_alive_closure() { return (BoolObjectClosure*)&_is_alive_closure; }
1144
1145 // Public accessors
1146 static elapsedTimer* accumulated_time() { return &_accumulated_time; }
1147 static unsigned int total_invocations() { return _total_invocations; }
1148 static CollectorCounters* counters() { return _counters; }
1149
1150 // Used to add tasks
1151 static GCTaskManager* const gc_task_manager();
1152 static Klass* updated_int_array_klass_obj() {
1153 return _updated_int_array_klass_obj;
1154 }
1155
1156 // Marking support
1157 static inline bool mark_obj(oop obj);
1158 static inline bool is_marked(oop obj);
1159
1160 template <class T> static inline void adjust_pointer(T* p);
1161
1162 static void follow_class_loader(ParCompactionManager* cm,
1163 ClassLoaderData* klass);
1164
1165 // Compaction support.
1166 // Return true if p is in the range [beg_addr, end_addr).
1167 static inline bool is_in(HeapWord* p, HeapWord* beg_addr, HeapWord* end_addr);
1168 static inline bool is_in(oop* p, HeapWord* beg_addr, HeapWord* end_addr);
1169
1170 // Convenience wrappers for per-space data kept in _space_info.
1171 static inline MutableSpace* space(SpaceId space_id);
1172 static inline HeapWord* new_top(SpaceId space_id);
1173 static inline HeapWord* dense_prefix(SpaceId space_id);
1174 static inline ObjectStartArray* start_array(SpaceId space_id);
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957
958 private:
959 static STWGCTimer _gc_timer;
960 static ParallelOldTracer _gc_tracer;
961 static elapsedTimer _accumulated_time;
962 static unsigned int _total_invocations;
963 static unsigned int _maximum_compaction_gc_num;
964 static jlong _time_of_last_gc; // ms
965 static CollectorCounters* _counters;
966 static ParMarkBitMap _mark_bitmap;
967 static ParallelCompactData _summary_data;
968 static IsAliveClosure _is_alive_closure;
969 static SpaceInfo _space_info[last_space_id];
970 static bool _print_phases;
971 static AdjustPointerClosure _adjust_pointer_closure;
972 static AdjustKlassClosure _adjust_klass_closure;
973
974 // Reference processing (used in ...follow_contents)
975 static ReferenceProcessor* _ref_processor;
976
977 // Values computed at initialization and used by dead_wood_limiter().
978 static double _dwl_mean;
979 static double _dwl_std_dev;
980 static double _dwl_first_term;
981 static double _dwl_adjustment;
982 #ifdef ASSERT
983 static bool _dwl_initialized;
984 #endif // #ifdef ASSERT
985
986
987 public:
988 static ParallelOldTracer* gc_tracer() { return &_gc_tracer; }
989
990 private:
991
992 static void initialize_space_info();
993
994 // Return true if details about individual phases should be printed.
995 static inline bool print_phases();
996
1129 // Perform initialization for PSParallelCompact that requires
1130 // allocations. This should be called during the VM initialization
1131 // at a pointer where it would be appropriate to return a JNI_ENOMEM
1132 // in the event of a failure.
1133 static bool initialize();
1134
1135 // Closure accessors
1136 static PSParallelCompact::AdjustPointerClosure* adjust_pointer_closure() {
1137 return &_adjust_pointer_closure;
1138 }
1139 static KlassClosure* adjust_klass_closure() { return (KlassClosure*)&_adjust_klass_closure; }
1140 static BoolObjectClosure* is_alive_closure() { return (BoolObjectClosure*)&_is_alive_closure; }
1141
1142 // Public accessors
1143 static elapsedTimer* accumulated_time() { return &_accumulated_time; }
1144 static unsigned int total_invocations() { return _total_invocations; }
1145 static CollectorCounters* counters() { return _counters; }
1146
1147 // Used to add tasks
1148 static GCTaskManager* const gc_task_manager();
1149
1150 // Marking support
1151 static inline bool mark_obj(oop obj);
1152 static inline bool is_marked(oop obj);
1153
1154 template <class T> static inline void adjust_pointer(T* p);
1155
1156 static void follow_class_loader(ParCompactionManager* cm,
1157 ClassLoaderData* klass);
1158
1159 // Compaction support.
1160 // Return true if p is in the range [beg_addr, end_addr).
1161 static inline bool is_in(HeapWord* p, HeapWord* beg_addr, HeapWord* end_addr);
1162 static inline bool is_in(oop* p, HeapWord* beg_addr, HeapWord* end_addr);
1163
1164 // Convenience wrappers for per-space data kept in _space_info.
1165 static inline MutableSpace* space(SpaceId space_id);
1166 static inline HeapWord* new_top(SpaceId space_id);
1167 static inline HeapWord* dense_prefix(SpaceId space_id);
1168 static inline ObjectStartArray* start_array(SpaceId space_id);
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