On 06/05/2012 10:17 AM, Krause, Mathias wrote: > Hi List, > > [sorry for last posting, including signature ... hopefully, this time it will not be there...] > > i switched my system to use jack2 (1.9.8). As i wanted to make sure, that SCHED_FF is used and threads got the right priority i took a look at ps: > > I can see, that jackd includes now 4 threads. Only one of them is using SCHED_FF with higher priority. Is that correct? > > regards, > Mathias Only the audio-engine is supposed to have elevated priority. The other threads are for logging, dbus communication... and similar non-realtime tasks that are not supposed to interfere with audio performance. Here jackdbus 1.9.8 - starts 7 threads by default. Only one with SCHED_FF and the given RT priority, but three others that use SCHED_FF as well. USTL or ask on jack-devel. --------------------------------------------------- #ps -ALo pid,class,rtprio,pri,stat,comm | grep jackd 29450 TS - 19 SLsl jackdbus 29450 FF 1 41 SLsl jackdbus 29450 FF 1 41 SLsl jackdbus 29450 FF 1 41 SLsl jackdbus 29450 TS - 19 SLsl jackdbus 29450 TS - 19 SLsl jackdbus 29450 FF 70 110 SLsl jackdbus --------------------------------------------------- jackd 1.9.9 without dbus spawns 4 threads: --------------------------------------------------- # ps -ALo pid,class,rtprio,pri,stat,comm | grep jackd 5966 TS - 19 SLsl jackd 5966 TS - 19 SLsl jackd 5966 FF 10 50 SLsl jackd 5966 TS - 19 SLsl jackd --------------------------------------------------- ciao, robin _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
