Mercurial > hg > graal-compiler

comparison src/share/vm/memory/threadLocalAllocBuffer.cpp @ 21811:22ac20a25842

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8055479: TLAB stability Reviewed-by: brutisso, stefank, ahgross
author mgerdin
date Thu, 09 Oct 2014 15:42:23 +0200
parents 78bbf4d43a14
children 7848fc12602b
comparison
equal deleted inserted replaced
21810:0366a71eda74 21811:22ac20a25842
233 min_size(), Thread::current()->tlab().initial_desired_size(), max_size()); 233 min_size(), Thread::current()->tlab().initial_desired_size(), max_size());
234 } 234 }
235 } 235 }
236 236
237 size_t ThreadLocalAllocBuffer::initial_desired_size() { 237 size_t ThreadLocalAllocBuffer::initial_desired_size() {
238 size_t init_sz; 238 size_t init_sz = 0;
239 239
240 if (TLABSize > 0) { 240 if (TLABSize > 0) {
241 init_sz = MIN2(TLABSize / HeapWordSize, max_size()); 241 init_sz = TLABSize / HeapWordSize;
242 } else if (global_stats() == NULL) { 242 } else if (global_stats() != NULL) {
243 // Startup issue - main thread initialized before heap initialized.
244 init_sz = min_size();
245 } else {
246 // Initial size is a function of the average number of allocating threads. 243 // Initial size is a function of the average number of allocating threads.
247 unsigned nof_threads = global_stats()->allocating_threads_avg(); 244 unsigned nof_threads = global_stats()->allocating_threads_avg();
248 245
249 init_sz = (Universe::heap()->tlab_capacity(myThread()) / HeapWordSize) / 246 init_sz = (Universe::heap()->tlab_capacity(myThread()) / HeapWordSize) /
250 (nof_threads * target_refills()); 247 (nof_threads * target_refills());
251 init_sz = align_object_size(init_sz); 248 init_sz = align_object_size(init_sz);
252 init_sz = MIN2(MAX2(init_sz, min_size()), max_size()); 249 }
253 } 250 init_sz = MIN2(MAX2(init_sz, min_size()), max_size());
254 return init_sz; 251 return init_sz;
255 } 252 }
256 253
257 void ThreadLocalAllocBuffer::print_stats(const char* tag) { 254 void ThreadLocalAllocBuffer::print_stats(const char* tag) {
258 Thread* thrd = myThread(); 255 Thread* thrd = myThread();