[FFmpeg-devel] [PATCH 3/3] avfilter/vf_uspp: 1000% faster with threads

Michael Niedermayer michael at niedermayer.cc
Thu Mar 16 23:26:00 EET 2023


On Thu, Mar 16, 2023 at 08:47:40AM +0100, Nicolas George wrote:
> Michael Niedermayer (12023-03-16):
> > Subject: Re: [FFmpeg-devel] [PATCH 3/3] avfilter/vf_uspp: 1000% faster with
> >  threads
> 
> Rule of thumb: do not use variation percentages above +100% or below
> -50%, use ratios instead:

indeed, i agree


> 
> avfilter/vf_uspp: 11 times faster with threads
> 
> (11, really? not 10?)

it was a rough number based on the fps on the command line (which fluctuates)
so 10x is better i would not be able to tell 10x from 11x reliably also i had
some NIST PRNG tests running in the background.
If people care i can pause all other stuff and redo this and post precisse
numbers, but iam not sure how interresting the exact factor for 1 thread 
vs 32 threads is.

thx

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Any man who breaks a law that conscience tells him is unjust and willingly 
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very highest respect for law. - Martin Luther King Jr
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