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comparison src/share/vm/gc_implementation/g1/g1ParScanThreadState.hpp @ 20404:227a9e5e4b4a

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8057536: Refactor G1 to allow context specific allocations Summary: Splitting out a g1 allocator class to simply specialized allocators which can associate each allocation with a given context. Reviewed-by: mgerdin, brutisso
author sjohanss
date Fri, 05 Sep 2014 09:49:19 +0200
parents a2328cbebb23
children 6948da6d7c13
comparison
equal deleted inserted replaced
20403:8ec8971f511a 20404:227a9e5e4b4a
44 RefToScanQueue* _refs; 44 RefToScanQueue* _refs;
45 DirtyCardQueue _dcq; 45 DirtyCardQueue _dcq;
46 G1SATBCardTableModRefBS* _ct_bs; 46 G1SATBCardTableModRefBS* _ct_bs;
47 G1RemSet* _g1_rem; 47 G1RemSet* _g1_rem;
48 48
49 G1ParGCAllocBuffer _surviving_alloc_buffer; 49 G1ParGCAllocator* _g1_par_allocator;
50 G1ParGCAllocBuffer _tenured_alloc_buffer; 50
51 G1ParGCAllocBuffer* _alloc_buffers[GCAllocPurposeCount];
52 ageTable _age_table; 51 ageTable _age_table;
53 52
54 G1ParScanClosure _scanner; 53 G1ParScanClosure _scanner;
55 54
56 size_t _alloc_buffer_waste; 55 size_t _alloc_buffer_waste;
76 size_t* _surviving_young_words; 75 size_t* _surviving_young_words;
77 76
78 #define PADDING_ELEM_NUM (DEFAULT_CACHE_LINE_SIZE / sizeof(size_t)) 77 #define PADDING_ELEM_NUM (DEFAULT_CACHE_LINE_SIZE / sizeof(size_t))
79 78
80 void add_to_alloc_buffer_waste(size_t waste) { _alloc_buffer_waste += waste; } 79 void add_to_alloc_buffer_waste(size_t waste) { _alloc_buffer_waste += waste; }
81
82 void add_to_undo_waste(size_t waste) { _undo_waste += waste; } 80 void add_to_undo_waste(size_t waste) { _undo_waste += waste; }
83 81
84 DirtyCardQueue& dirty_card_queue() { return _dcq; } 82 DirtyCardQueue& dirty_card_queue() { return _dcq; }
85 G1SATBCardTableModRefBS* ctbs() { return _ct_bs; } 83 G1SATBCardTableModRefBS* ctbs() { return _ct_bs; }
86 84
102 G1ParScanThreadState(G1CollectedHeap* g1h, uint queue_num, ReferenceProcessor* rp); 100 G1ParScanThreadState(G1CollectedHeap* g1h, uint queue_num, ReferenceProcessor* rp);
103 ~G1ParScanThreadState(); 101 ~G1ParScanThreadState();
104 102
105 ageTable* age_table() { return &_age_table; } 103 ageTable* age_table() { return &_age_table; }
106 104
107 G1ParGCAllocBuffer* alloc_buffer(GCAllocPurpose purpose) {
108 return _alloc_buffers[purpose];
109 }
110
111 size_t alloc_buffer_waste() const { return _alloc_buffer_waste; }
112 size_t undo_waste() const { return _undo_waste; }
113
114 #ifdef ASSERT 105 #ifdef ASSERT
115 bool queue_is_empty() const { return _refs->is_empty(); } 106 bool queue_is_empty() const { return _refs->is_empty(); }
116 107
117 bool verify_ref(narrowOop* ref) const; 108 bool verify_ref(narrowOop* ref) const;
118 bool verify_ref(oop* ref) const; 109 bool verify_ref(oop* ref) const;
124 _refs->push(ref); 115 _refs->push(ref);
125 } 116 }
126 117
127 template <class T> inline void update_rs(HeapRegion* from, T* p, int tid); 118 template <class T> inline void update_rs(HeapRegion* from, T* p, int tid);
128 119
129 private:
130
131 inline HeapWord* allocate(GCAllocPurpose purpose, size_t word_sz);
132 inline HeapWord* allocate_slow(GCAllocPurpose purpose, size_t word_sz);
133 inline void undo_allocation(GCAllocPurpose purpose, HeapWord* obj, size_t word_sz);
134
135 public: 120 public:
136 121
137 void set_evac_failure_closure(OopsInHeapRegionClosure* evac_failure_cl) { 122 void set_evac_failure_closure(OopsInHeapRegionClosure* evac_failure_cl) {
138 _evac_failure_cl = evac_failure_cl; 123 _evac_failure_cl = evac_failure_cl;
139 } 124 }
175 // age -1 regions (i.e. non-young ones) 160 // age -1 regions (i.e. non-young ones)
176 return _surviving_young_words; 161 return _surviving_young_words;
177 } 162 }
178 163
179 private: 164 private:
180 void retire_alloc_buffers();
181
182 #define G1_PARTIAL_ARRAY_MASK 0x2 165 #define G1_PARTIAL_ARRAY_MASK 0x2
183 166
184 inline bool has_partial_array_mask(oop* ref) const { 167 inline bool has_partial_array_mask(oop* ref) const {
185 return ((uintptr_t)ref & G1_PARTIAL_ARRAY_MASK) == G1_PARTIAL_ARRAY_MASK; 168 return ((uintptr_t)ref & G1_PARTIAL_ARRAY_MASK) == G1_PARTIAL_ARRAY_MASK;
186 } 169 }