[FFmpeg-devel] [PATCH] unscaled float 2 int conversion
Fri May 16 11:44:39 CEST 2008
On Friday 16 May 2008, Michael Niedermayer wrote:
> Ohh well, why do i always have to do the work? You could have safed me
> some time by just saying that you wont do the benchmarks.
> PS: yes i dont give a damn what you or anyone else thinks, either
> i see benchmarks or people can go talking to their next wall.
> It would have taken you less time to disable MMX*/SSE* and write
> a benchmark than explaining why its better not to.
> gcc-4.4 -O3 -fno-math-errno
> 145658 dezicycles in conv_cast, 16368 runs, 16 skips
> 52531 dezicycles in conv_lrint, 16377 runs, 7 skips
> 57978 dezicycles in conv_bias, 16380 runs, 4 skips
By the way, how adequate is the distribution of input values in your
test? Is the percentage of cases when value clipping is actually
needed in this test similar to the percentage of clipping on real
Because it affects benchmark results *very* much...
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