113 int fast_refill_waste() const { return _fast_refill_waste; }
114 int slow_refill_waste() const { return _slow_refill_waste; }
115 int gc_waste() const { return _gc_waste; }
116 int slow_allocations() const { return _slow_allocations; }
117
118 static GlobalTLABStats* _global_stats;
119 static GlobalTLABStats* global_stats() { return _global_stats; }
120
121 public:
122 ThreadLocalAllocBuffer() : _allocation_fraction(TLABAllocationWeight), _allocated_before_last_gc(0) {
123 // do nothing. tlabs must be inited by initialize() calls
124 }
125
126 static size_t min_size() { return align_object_size(MinTLABSize / HeapWordSize) + alignment_reserve(); }
127 static size_t max_size() { assert(_max_size != 0, "max_size not set up"); return _max_size; }
128 static size_t max_size_in_bytes() { return max_size() * BytesPerWord; }
129 static void set_max_size(size_t max_size) { _max_size = max_size; }
130
131 HeapWord* start() const { return _start; }
132 HeapWord* end() const { return _end; }
133 HeapWord* hard_end();
134 HeapWord* top() const { return _top; }
135 HeapWord* pf_top() const { return _pf_top; }
136 size_t desired_size() const { return _desired_size; }
137 size_t used() const { return pointer_delta(top(), start()); }
138 size_t used_bytes() const { return pointer_delta(top(), start(), 1); }
139 size_t free() const { return pointer_delta(end(), top()); }
140 // Don't discard tlab if remaining space is larger than this.
141 size_t refill_waste_limit() const { return _refill_waste_limit; }
142
143 // Allocate size HeapWords. The memory is NOT initialized to zero.
144 inline HeapWord* allocate(size_t size);
145
146 // Reserve space at the end of TLAB
147 static size_t end_reserve() {
148 int reserve_size = typeArrayOopDesc::header_size(T_INT);
149 return MAX2(reserve_size, _reserve_for_allocation_prefetch);
150 }
151 static size_t alignment_reserve() { return align_object_size(end_reserve()); }
152 static size_t alignment_reserve_in_bytes() { return alignment_reserve() * HeapWordSize; }
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113 int fast_refill_waste() const { return _fast_refill_waste; }
114 int slow_refill_waste() const { return _slow_refill_waste; }
115 int gc_waste() const { return _gc_waste; }
116 int slow_allocations() const { return _slow_allocations; }
117
118 static GlobalTLABStats* _global_stats;
119 static GlobalTLABStats* global_stats() { return _global_stats; }
120
121 public:
122 ThreadLocalAllocBuffer() : _allocation_fraction(TLABAllocationWeight), _allocated_before_last_gc(0) {
123 // do nothing. tlabs must be inited by initialize() calls
124 }
125
126 static size_t min_size() { return align_object_size(MinTLABSize / HeapWordSize) + alignment_reserve(); }
127 static size_t max_size() { assert(_max_size != 0, "max_size not set up"); return _max_size; }
128 static size_t max_size_in_bytes() { return max_size() * BytesPerWord; }
129 static void set_max_size(size_t max_size) { _max_size = max_size; }
130
131 HeapWord* start() const { return _start; }
132 HeapWord* end() const { return _end; }
133 HeapWord* slow_path_end() const { return _slow_path_end; }
134 HeapWord* actual_end() const { return _actual_end; }
135 HeapWord* hard_end();
136 HeapWord* top() const { return _top; }
137 HeapWord* pf_top() const { return _pf_top; }
138 size_t desired_size() const { return _desired_size; }
139 size_t used() const { return pointer_delta(top(), start()); }
140 size_t used_bytes() const { return pointer_delta(top(), start(), 1); }
141 size_t free() const { return pointer_delta(end(), top()); }
142 // Don't discard tlab if remaining space is larger than this.
143 size_t refill_waste_limit() const { return _refill_waste_limit; }
144
145 // Allocate size HeapWords. The memory is NOT initialized to zero.
146 inline HeapWord* allocate(size_t size);
147
148 // Reserve space at the end of TLAB
149 static size_t end_reserve() {
150 int reserve_size = typeArrayOopDesc::header_size(T_INT);
151 return MAX2(reserve_size, _reserve_for_allocation_prefetch);
152 }
153 static size_t alignment_reserve() { return align_object_size(end_reserve()); }
154 static size_t alignment_reserve_in_bytes() { return alignment_reserve() * HeapWordSize; }
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