Re: [FFmpeg-devel] [PATCH] lavc/vc1dsp: R-V V mspel_pixels

[flow gg <hlefthleft@gmail.com>]

The test results show that changing mf2 to m1 in ff_avg_pixels8x8_rvv in
vc1,
or changing mf2/mf4 to m1 in vsetvlstatic8 in vp8,
results in a 10-20% performance decrease on both k230 and banana_f3.

I think we should just continue using it as is...

Rémi Denis-Courmont <remi@remlab.net> 于2024年5月10日周五 23:34写道：

> Le perjantaina 10. toukokuuta 2024, 11.22.53 EEST flow gg a écrit :
> > Hi, I got BananaPi F3, made some fixes, updated in reply
>
> So... Does it benefit from halving the logical multiplier to process
> fixed-sized
> block as compared to C908, or can we stick to the same code regardless of
> vector sizes?
>
> Also beware that K60 cores have in-order pipelines, so data dependencies
> will
> probably hurt more than on C908.
>
> --
> Rémi Denis-Courmont
> http://www.remlab.net/
>
>
>
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