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1 Commits (2cc14bd0fb2b898d7667c01bd24754dc9df0d5bd)
| Author | SHA1 | Message | Date |
|---|---|---|---|
Alexander Alekhin
|
c49d5d5252 |
core: fix pthreads performance
OpenCV pthreads-based implementation changes: - rework worker threads pool, allow to execute job by the main thread too - rework synchronization scheme (wait for job completion, threads 'pong' answer is not required) - allow "active wait" (spin) by worker threads and by the main thread - use _mm_pause() during active wait (support for Hyper-Threading technology) - use sched_yield() to avoid preemption of still working other workers - don't use getTickCount() - optional builtin thread pool profiler (disabled by compilation flag) |
7 years ago |