[ts-7000] Re: RTAI on TS-7260 and usleep()

["j.chitte" <>]

--- In  "ronis_br" <> wrote:
>
> Well, latency test shows that kernel programming has a latency smaller than a 
> program in user space.
> 
> But, when I'm executing the program that generates my wave, I could achieve a 
> jitter less then 5us. In kernel programming, I have something like 20us.

http://www.captain.at/adeos-ipipe-jitter-latency-test.php

this site suggests jitter <=10us (450MHz PIII)

I'm a bit surprised and disappointed that this can't be better on a hard real 
time system. Maybe just my lack of detailed knowledge of what a nano kernel has 
to do.





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