Re: Xvid performance woes

mitch a écrit :
> Téletchéa Stéphane a écrit :
>   
>> On this specific performance problem, do you have any numbers of video 
>> encoding in 32 versus 64 bits (in Mandriva i mean), i'm not sure if the 
>> 64 bits (except here for the xvid specific problem) is much better in 64 
>> mode than in 32 ...
>>
>> If you can share numbers, that'd be cool :-)
>>   
>>     
> I don't have any real numbers; moreover, I don't have parallel installs 
> of Mandriva 32-bit and Mandriva 64-bit (I have a mere WinXP dual boot 
> partition that's gathering dust somewhere on my HD), so all I can say is 
> that Koepi's Xvid build for Windows ran more or less as fast as a C-only 
> compile of Xvid in 64-bit, using an MPEG-2 stream as source. Now, maybe 
> there is no difference between 32- and 64-bit Xvid speed, if Koepi's PE 
> build is making use of the C implementation (which I doubt: I think he's 
> made his build based on the Pentium Pro instruction set, without MMX nor 
> SSE, but with assembly support). Other factors such as the software 
> chain I was using in WinXP may have slowed things down.
> I may try to install the 32-version of avidemux and libxvid4 and run 
> some tests, but I really don't feel curious enough for now.
>
> Mitch
>   

OK, i do have some parallel install (but not exactly same versions of 
softwares since most are beta and one is a official install). When my 
bench will done, i'll share if you wish :-)

Stef