On Wed, Jan 10, 2007 at 08:16:52PM +0100, Marcos Guglielmetti wrote: > El Sáb 06 Ene 2007 21:45, Lee Revell escribió: > > On Sat, 2007-01-06 at 16:21 +0100, Marcos Guglielmetti wrote: > > > El Vie 05 Ene 2007 05:06, Lee Revell escribió: > > > > On Thu, 2007-01-04 at 21:47 +0100, Marcos Guglielmetti wrote: > > > > > /etc/security/limits.conf > > > > > > > > > > @audio - rt_priority 100 > > > > > @audio - nice -10 > > > > > @audio - memlock 4000000 > > > > > > > > You might need to use "rtprio" - I don't remember the exact syntax. > > > > > > > > Lee > > > > > > You are maybe right, but here rtprio did not solved the problem: > > > > > > # Testing: > > > #See page http://mzilikazi.sexypenguins.com/. There that same is > > > @audio - rtprio 99 > > > @audio - nice -10 > > > @audio - memlock 250000 > > > > This is what I have: > > > > * hard rtprio 99 > > * hard nice -20 > > * soft nice -20 > > * hard memlock 500000 > > > > > > Works perfectly with PAM version: > > > > ii libpam-modules 0.79-3ubuntu14 Pluggable Authentication Modules for > > PAM > > > > If it does not work for you there must be a bug in the Debian PAM > > package. > > > > Lee > > I copied your config > > > * hard rtprio 99 > > * hard nice -20 > > * soft nice -20 > > * hard memlock 500000 > > > to my system, and I am still having the same xruns problems with non-root > users, maybe there is a problem with the PAM version into Debian > You mentioned you are still getting xruns ... but have you confirmed if thread scheduling priority was changed (with the realtime support)? Here is a quick summary of how I know to check this out: Three groups of thread scheduling classes - SCHED_FIFO , gets high priority and runs until done - SCHED_RR , get put in a pool and given run time in a round-robbing fassion - SCHED_OTHER, gets least priority man 2 sched_setscheduler has more details on this. Threads can also have a numeric priority value from 0 (lowest) to 99 (highest priority) . One can see threads with ps axm 27758 ? - 0:00 /usr/bin/jackd -T -ndefault --realtime --temporary --driver alsa --rate 48000 - - SLs 0:00 - - - SLs 0:00 - - - SLs 0:00 - - - SLs 0:00 - - - SLs 0:00 - One can see thread SPID with ps axm -T 27758 - ? - 0:00 /usr/bin/jackd -T -ndefault --realtime --temporary --driver alsa --rate 48000 - 27758 - SLs 0:00 - - 27759 - SLs 0:00 - - 27760 - SLs 0:00 - - 27761 - SLs 0:00 - - 27762 - SLs 0:00 - Or simply with ps ax -T Another way to view this info is with ps -C jackd -cmL Once the SPID has been observed, the "chrt" (from the "schedutils" debian package) command can be used to query the thread and see it's priority [grauf@grauf grauf]$ ps -C jackd -cmL PID LWP CLS PRI TTY TIME CMD 27758 - - - ? 00:00:39 jackd - 27758 TS 16 - 00:00:00 - - 27759 TS 17 - 00:00:00 - - 27760 TS 24 - 00:00:00 - - 27761 FF 60 - 00:00:00 - - 27762 FF 50 - 00:00:39 - [grauf@grauf grauf]$ chrt -p 27758 pid 27758's current scheduling policy: SCHED_OTHER pid 27758's current scheduling priority: 0 [grauf@grauf grauf]$ chrt -p 27759 pid 27759's current scheduling policy: SCHED_OTHER pid 27759's current scheduling priority: 0 [grauf@grauf grauf]$ chrt -p 27760 pid 27760's current scheduling policy: SCHED_OTHER pid 27760's current scheduling priority: 0 [grauf@grauf grauf]$ chrt -p 27761 pid 27761's current scheduling policy: SCHED_FIFO pid 27761's current scheduling priority: 20 [grauf@grauf grauf]$ chrt -p 27762 pid 27762's current scheduling policy: SCHED_FIFO pid 27762's current scheduling priority: 10 best luck to you, donfede -- Federico Grau Free Software Developer and Sysadmin Radio Free Asia 2025 M Street, NW Suite 300 Washington, DC 20036 202-587-2046 Telephone 202-721-7468 Facsimile CONFIDENTIAL COMMUNICATION This e-mail message is intended only for the use of the addressee and may contain information that is privileged and confidential. Any unauthorized dissemination, distribution, or copying is strictly prohibited. If you receive this transmission in error, please contact network@xxxxxxxx ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
