Re: [FFmpeg-devel] [PATCH] x86: hevc_mc: replace simple leas by adds

2014-07-26 Thread Michael Niedermayer
On Thu, Jul 24, 2014 at 08:23:21PM +0200, Christophe Gisquet wrote: > Hi, > > the impact is relatively important (3 to 25 cycles, ie up to 2%) so I > also include bench.patch if anybody wants to confirm the timings. > > Although I thought openhevc's MC code was faster, the benchmarked > functions

[FFmpeg-devel] [PATCH] x86: hevc_mc: replace simple leas by adds

2014-07-24 Thread Christophe Gisquet
Hi, the impact is relatively important (3 to 25 cycles, ie up to 2%) so I also include bench.patch if anybody wants to confirm the timings. Although I thought openhevc's MC code was faster, the benchmarked functions are faster in ffmpeg. I didn't investigate if there are any MC functions much slo