[Ffmpeg-devel] benchmark of different CABAC routines

Panagiotis Issaris takis.issaris
Tue Oct 10 13:43:17 CEST 2006


On Tue, Oct 10, 2006 at 01:28:24PM +0200, Michael Niedermayer wrote:
> BRANCHLESS C -march=athlon -mcpu=athlon -mtune=athlon
> 4908 dezicycles in decode_residual, 2094945 runs, 2207 skipsbits/s dup=0 drop=0
> 5558 dezicycles in decode_residual, 2094664 runs, 2488 skipsbits/s dup=0 drop=0
> ill also run benchmarks on an athlon later if noone is quicker, but ive no P4
> offtopic ... but can someone fix ffmpeg/configure so it sets march/mtune/mcpu ?
According to the GCC manual, march implies mtune, and mcpu is a (deprecated)
synonym for mtune. Here, my "configure --tune=athlon" sets the -march parameter,
so that should be enough, no?

With friendly regards,

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