[FFmpeg-devel] MMX version for put_no_rnd_h264_chroma_mc8_c

[Christophe GISQUET]

Good evening,

Michael Niedermayer a ?crit :
>> Before:
>> VC-1: 2085 dezicycles in rnd, 1047692 runs, 884 skips
>> h264: 1093 dezicycles in rnd, 2096936 runs, 216 skips
>>
>> Patch applied:
>> VC-1: 2106 dezicycles in rnd, 1047537 runs, 1039 skips
>>       2119 dezicycles in no_rnd, 1047384 runs, 1192 skips
>> h264: 1097 dezicycles in rnd, 2096867 runs, 285 skips
> 
> i assume these measurements where over the function calls not were
> the *_TIMER were placed in the last patch?

For the version with my patch, I simply put them around call to 
put_h264_chroma_mc8_mmx in put_h264_chroma_mc8_mmx_rnd and 
put_h264_chroma_mc8_mmx_nornd

For the "before" timing, I created an intermediate function mimicking 
the same thing. Save for difference in inlining treatment, this should 
be equivalent and comparable to timing with patch applied.

The global measures are without the _TIMER and the intermediate 
function, running with -benchmark.

Best regards,
-- 
Christophe GISQUET