Le 14 nov. 2010 à 21:04, E Chalaron a écrit :

> Hello Bernhard
> Thanks for the reply.
>> That is a normal behaviour both programms use only one CPU/Core and are 
>> not multithreaded.
>> 
> 
> Ok so if I understand properly does it mean that y4munsharp will get 1
> core and the yuvdenoise the oher one ? or both on 1 core that will
> alternate from time to time ?
> If so is there a chance that both (and maybe the other mjpegtools) can
> be multithreaded ?

(hello, sorry I'm not english native)

If I well readed your mail: you only have 2 core and you want some speedup
but you have 4 processes : decoder, yuvdenoise, y4munsharp, ffmpeg
The good hardware for this process will be to have 4 core (one for each process)

Theorically, if you had more core/proc (than 4), you could add some threads 
more to the most consumming processes parts (aka yuvdenoise and ffmpeg enc) and 
to obtain some speed / optimizations
But you don't have ;-)

The most efficient way for me (empiric way) is not to distribute processes 
between so few cores, but to limit threads to the exact number of your 
processors. 
(was my 2 cents ;))

bye

Hervé
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