[linux-audio-user] Dual Core?

[Julian Hagenauer]

> Debian testing current libpam-modules 0.79-4 supports rtprio (I use it).
> To be sure just run :
> 
> jackd -R -P 70 -d dummy
> 
> in another shell launch :
> 
> top -H -p `pidof jackd`
> 
>   PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 26812 moino 18 0 21652 21m 3892 S 0 2.1 0:00.01 jackd
> 26813 moino 18 0 21652 21m 3892 S 0 2.1 0:00.00 jackd
> 26814 moino 19 0 21652 21m 3892 S 0 2.1 0:00.00 jackd
> 26815 moino -81 0 21652 21m 3892 S 0 2.1 0:00.00 jackd
> 26816 moino *-71* 0 21652 21m 3892 S 0 2.1 0:00.00 jackd
> 
> If rlimit is not working you won't see a thread at prio -71
> Don't be afraid if you don't have the thread at -81 you must have an
> old version of jackd.
> 
> If you can verify this you can be sure your problem does not come from
> rlimit or realtime stuff.
> You will have to investigate more.
> 
> Goood luck.
> 
> PS. If you have a dual core setup I'm not sure your jackd version is patched
> against some hw clock drift problems. Do you have the --clocksource
> option when you launch jackd -h ?
> 
> David. 

Hi,
thank you for your answer.
rlimits seem to work, becasue i got the same results as mentioned above.
In fact i have a Centrino Duo (Dual Core) notebook, so this might be the reason fpr my xruns and stuttering sound?
If i run jackd -h i got no option mention --clocksource.
What can i do next?

Thank you,
Julian