Hi, On Sat, Apr 23, 2011 at 10:32 AM, Ronald S. Bultje <[email protected]> wrote: [..]
Just to come back to the prefetch issue, these are times for the 1/2 threads with, without prefetch and with a prefetch with thread_wait: 1 thread, prefetch on real 0m10.197s user 0m10.071s real 0m10.075s user 0m9.993s real 0m10.129s user 0m10.036s 1 thread, prefetch off real 0m10.622s user 0m10.528s real 0m10.535s user 0m10.451s real 0m10.551s user 0m10.466s 1 thread, prefetch on with thread_wait real 0m10.005s user 0m9.923s real 0m10.049s user 0m9.961s real 0m10.037s user 0m9.949s 2 threads, prefetch off real 0m6.652s user 0m12.260s real 0m6.600s user 0m12.144s real 0m6.634s user 0m12.239s 2 threads, prefetch on real 0m6.289s user 0m11.679s real 0m6.299s user 0m11.716s real 0m6.406s user 0m11.927s 2 threads, prefetch on with thread_wait real 0m6.361s user 0m11.833s real 0m6.353s user 0m11.819s real 0m6.392s user 0m11.908s So a little slowdown on 2 threads, oddly, but I'll leave it anyway. Ronald _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
