[LAU] xruns with m-audio fast track pro on fedora 8 ccrma -> kernel 2.6.22 , periods/buffer = 3 , disable system bips and esd, and proper rtirq setup

[Florent Berthaut]

Hartmut Noack a écrit :
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> Florent Berthaut schrieb:
>   
>> Fernando Lopez-Lezcano a écrit :
>>     
>>> A more basic question... what parameters are you using when you start
>>> jackd?
>>>
>>> -- Fernando
>>>   
>>>       
>> .jackdrc:
>>
>> /usr/bin/jackd -R -P70 -t1000 -u -dalsa -r44100 -p64 -n2 -D -Chw:0,1 
>> -Phw:0,0 -S -i2 -o2
>>
>>     
>
> USB-Devices often perform much better with -n3. Furthermore I would try
> to eliminate any flag, that is not absolutely needed such as:
>
> /usr/bin/jackd -R -dhw:1 -dalsa -r44100 -p64 -n3
>
> BTW: this would compute to around 4 ms latency - is that good enough for
> you?
>
>   

Okay, i had forgot to turn off the system "bips" and esd (it reduced the 
number of xruns)
And yep with -n3 i 've got even less xruns and it seems they're not 
audible.
I don't know if the latency is low enough though, i'll test this evening 
with my drum pads.

Thanks everyone , it's really great to get so much help so quickly.

Flo



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