On Sat, 25 Feb 2006 02:44:54 -0500
Hector Centeno-Garcia <h.centeno@xxxxxxxxxxxx> wrote:
> Hi,
>
> I've been playing around a little with the priority thing. I would like
> to understand better the way it works. Looking at the priority of jackd
> (running realtime, as user, and with a RT kernel, full-preemption) I
> can't figure out why if I start jackd with -P 60 (or any other number >
> 0) the output of chrt is always:
>
> $ chrt -p (jackd's pid)
> pid 8115's current scheduling policy: SCHED_OTHER
> pid 8115's current scheduling priority: 0
the relevant excerpt of "man jackd":
-P, --realtime-priority int
When running --realtime, set the scheduler priority to int.
The important part is "When running --realtime".. Usually you call jackd
like this to get a high rt prio:
jackd -R -P 70 ...
BTW: shortcut:
chrt -p `pidof jackd`
or
chrt -p `pidof "IRQ 8"`
etc..
Flo
P.S.: See my site in the signature for some more in depth info.
--
Palimm Palimm!
http://tapas.affenbande.org
