Oskar Arvidsson <[email protected]> writes: > Hi, > > On Tue, Mar 29, 2011 at 05:48:45PM +0200, Oskar Arvidsson wrote: >> Also, I've done some basic benchmarking on how this patchset affects >> 8-bit decoding. I'll post the data from those runs separately. > > Upon request by mru I extended the benchmark somewhat. I didn't bother > doing this with oprofile though. > > 10 runs decoding 8-bit h264: > > | Before | After > ------------------------------------------- > | 8.629 | 8.726 > | 8.606 | 8.709 > | 8.619 | 8.716 > | 8.609 | 8.683 > | 8.619 | 8.706 > | 8.606 | 8.786 > | 8.643 | 8.659 > | 8.626 | 8.653 > | 8.613 | 8.673 > | 8.629 | 8.733 > ------------------------------------------- > Avg: | 8.62 | 8.70 > Stddev: | 0.012 | 0.040 > -------------------------------------------
Are those user time or elapsed time? > From the table follows that the patchset gives a speed penalty to 8-bit > h264 decoding of about 1% (for this clip). Note that the change is only slightly greater than one stddev of the after numbers. It might be worthwhile testing another clip with different characteristics. Do you have any idea why it got slower? -- Måns Rullgård [email protected] _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
