[linux-audio-user] jackd and realtime priority

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 I checked this in two different distros (FC4+CCRMA and Ubuntu with custom RT kernel) and the result is the same. Is it not supposed to read: $ chrt -p 8115 pid 8115's current scheduling policy: SCHED_FIFO (maybe?) pid 8115's current scheduling priority: 60 I know that I can set this manually, but I'm just wondering what is the real effect of the -P flag. Any help will be appreciated, Cheers! Hector