153 static void resize_all_tlabs();
154
155 void fill(HeapWord* start, HeapWord* top, size_t new_size);
156 void initialize();
157
158 static size_t refill_waste_limit_increment() { return TLABWasteIncrement; }
159
160 // Code generation support
161 static ByteSize start_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _start); }
162 static ByteSize end_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _end ); }
163 static ByteSize top_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _top ); }
164 static ByteSize pf_top_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _pf_top ); }
165 static ByteSize size_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _desired_size ); }
166 static ByteSize refill_waste_limit_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _refill_waste_limit ); }
167
168 static ByteSize number_of_refills_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _number_of_refills ); }
169 static ByteSize fast_refill_waste_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _fast_refill_waste ); }
170 static ByteSize slow_allocations_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _slow_allocations ); }
171
172 void verify();
173 };
174
175 class GlobalTLABStats: public CHeapObj<mtThread> {
176 private:
177
178 // Accumulate perfdata in private variables because
179 // PerfData should be write-only for security reasons
180 // (see perfData.hpp)
181 unsigned _allocating_threads;
182 unsigned _total_refills;
183 unsigned _max_refills;
184 size_t _total_allocation;
185 size_t _total_gc_waste;
186 size_t _max_gc_waste;
187 size_t _total_slow_refill_waste;
188 size_t _max_slow_refill_waste;
189 size_t _total_fast_refill_waste;
190 size_t _max_fast_refill_waste;
191 unsigned _total_slow_allocations;
192 unsigned _max_slow_allocations;
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153 static void resize_all_tlabs();
154
155 void fill(HeapWord* start, HeapWord* top, size_t new_size);
156 void initialize();
157
158 static size_t refill_waste_limit_increment() { return TLABWasteIncrement; }
159
160 // Code generation support
161 static ByteSize start_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _start); }
162 static ByteSize end_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _end ); }
163 static ByteSize top_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _top ); }
164 static ByteSize pf_top_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _pf_top ); }
165 static ByteSize size_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _desired_size ); }
166 static ByteSize refill_waste_limit_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _refill_waste_limit ); }
167
168 static ByteSize number_of_refills_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _number_of_refills ); }
169 static ByteSize fast_refill_waste_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _fast_refill_waste ); }
170 static ByteSize slow_allocations_offset() { return byte_offset_of(ThreadLocalAllocBuffer, _slow_allocations ); }
171
172 void verify();
173 void reset_to_null() {
174 set_start(NULL);
175 set_top(NULL);
176 set_pf_top(NULL);
177 set_end(NULL);
178 }
179 };
180
181 class GlobalTLABStats: public CHeapObj<mtThread> {
182 private:
183
184 // Accumulate perfdata in private variables because
185 // PerfData should be write-only for security reasons
186 // (see perfData.hpp)
187 unsigned _allocating_threads;
188 unsigned _total_refills;
189 unsigned _max_refills;
190 size_t _total_allocation;
191 size_t _total_gc_waste;
192 size_t _max_gc_waste;
193 size_t _total_slow_refill_waste;
194 size_t _max_slow_refill_waste;
195 size_t _total_fast_refill_waste;
196 size_t _max_fast_refill_waste;
197 unsigned _total_slow_allocations;
198 unsigned _max_slow_allocations;
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