[XviD-devel] [CVS commit] Linux amd64 preliminary support

[Guillaume POIRIER]

Hi,
Edouard Gomez a écrit :

> Guillaume POIRIER (guillaume.poirier at etudiant.univ-rennes1.fr) wrote:
>  
>
>> That's all for today, I'll try to test the qpel fix soon.
>>   
>
>
> Thanks for the comparisons.
>

You're very welcome.

>
> I'll just add that for the test:
>  
>
>> On IA-32
>>   Pure C     | XviD SIMD yasm | XviD Edouard SIMD | lavc + SIMD
>> Pass 1: 10fps | N/A            | 44fps             | 42fps
>> Pass 2: 3fps  | N/A            | 13fps             | 11fps
>>   
>
>
> XviD SIMD  yasm would give exactly  the same speed,  the only difference
> between nasm  and yasm output is  that some short jumps  are turned into
> long jumps  because nasm  uses one  more pass over  the opcodes  and can
> post-determine that a long jump can  be written as short jumps. But this
> small difference is absolutly not significant.
>

I'm  really sorry if I confused you. What I meant is that Andre 
Werthmann's port (based on  XviD-1.0.2) is slower than you port based on 
XviD 1.1.x
I quess I shouldn't have called it the "yasm" version but the Andre's 
version.
I'd like to add also that, in this bench, all programs and libs are 
compiled with gcc-3.4 and nasm, so the 1fps of different doesn't come 
from there.

> You can test that simply letting the configure script doing its job, and
> then hand editing the resulting platform.inc file, changing AS+nasm to
> AS=yasm
>
I guess I can do that if ever I find the time to do so. BTW, other than 
benches, do you only expect bug reports, or do I miss something?

Regards,
Guillaume