On Mon, 11 Nov 2024 14:07:21 +0000 AV Muppet via ffmpeg-devel <ffmpeg-devel@ffmpeg.org> wrote:
> On Monday, November 11th, 2024 at 3:12 AM, Rémi Denis-Courmont > <r...@remlab.net> wrote: > > > > I recently read a news article about impressive AVX-512 > > > optimizations of Motion Compensation functions and I'd like to > > > learn more. Unfortunately, the article merely linked the post on > > > X, which included a screenshot and little else. > > > > > > https://x.com/FFmpeg/status/1852542388851601913 > > > > That's a screenshot of dav1d's checkasm, so you'll find the code in > > dav1d, not FFmpeg. > > Thanks for the pointer. > > I'd like to alert folks that the only way I could reproduce > performance numbers similar to theirs is when I built it with > '-Dbuildtype=debug'. Otherwise, the SIMD versions are all within the > typical order of magnitude vs. the generic C implementations you'd > normally expect. > > Again, I'm lacking any context concerning the original screen grab. > However, the actual text of the tweet appears to be highly misleading. > > "A 94x speed improvement demonstrated using handwritten assembly" are you trying to say that ffmpeg should take down the tweet? well you can come on #ffmpeg-devel irc too, if you dont like twitter. -compn _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
