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Merge "Runtime detection of available processor cores."

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Yunqing Wang
2011-05-05 04:59:54 -07:00
committed by Code Review
parent 3fbade23a2 297b27655e
commit aeb86d615c
7 changed files with 67 additions and 7 deletions
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10
vp8/decoder/threading.c
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@@ -439,12 +439,18 @@ void vp8_decoder_create_threads(VP8D_COMP *pbi)
pbi->b_multithreaded_rd = 0;
pbi->allocated_decoding_thread_count = 0;
core_count = (pbi->max_threads > 16) ? 16 : pbi->max_threads;
/* limit decoding threads to the max number of token partitions */
core_count = (pbi->max_threads > 8) ? 8 : pbi->max_threads;
/* limit decoding threads to the available cores */
if (core_count > pbi->common.processor_core_count)
core_count = pbi->common.processor_core_count;
if (core_count > 1)
{
pbi->b_multithreaded_rd = 1;
pbi->decoding_thread_count = core_count -1;
pbi->decoding_thread_count = core_count - 1;
CHECK_MEM_ERROR(pbi->h_decoding_thread, vpx_malloc(sizeof(pthread_t) * pbi->decoding_thread_count));
CHECK_MEM_ERROR(pbi->h_event_start_decoding, vpx_malloc(sizeof(sem_t) * pbi->decoding_thread_count));