Hallo.<br>I posted to the jackit-devel list too, so apologies if you're seeing this again. No luck there...<br><br>jackd version 0.103.0 tmpdir /dev/shm protocol 16<br>2.6.22.1-rt9<br>Debian testing<br><br>I've
just noticed that I am unable to set jackd priority on the command
line. I have a script set up to use "sudo chrt" to change it, but when
I comment out that line in the script, jackd runs at 0 with schedule
"other".
<br><br>My script:<br>sudo chrt -fp 82 `pidof "IRQ-16"`<br>jackd --realtime -P 70 -dalsa -P -p256 -n2 -r44100 &<br>sudo chrt -fp 70 `pidof "jackd"`<br>chrt -p `pidof "IRQ-16"`<br>chrt -p `pidof "jackd"`
<br>exit<br><br>If I comment out the second sudo chrt line, the last line returns:<br>pid 5032's current scheduling policy: SCHED_OTHER<br>pid 5032's current scheduling priority: 0<br>otherwise it is SCHED_FF and 70.
<br><br>My kernel has:<br># CONFIG_PREEMPT_NONE is not set<br># CONFIG_PREEMPT_VOLUNTARY is not set<br># CONFIG_PREEMPT_DESKTOP is not set<br>CONFIG_PREEMPT_RT=y<br>CONFIG_PREEMPT=y<br>CONFIG_PREEMPT_SOFTIRQS=y<br>CONFIG_PREEMPT_HARDIRQS=y
<br>CONFIG_PREEMPT_BKL=y<br># CONFIG_CLASSIC_RCU is not set<br>CONFIG_PREEMPT_RCU=y<br><br>/etc/security/limits.conf has:<br>@audio - nice -10<br>@audio - rtprio 99<br>@audio - memlock 4000000 (someone on the jack list suggested that my previous value "unlimited" was not recognized, so I stuck this in but no change)
<br><br>and user "<span id="st" name="st" class="st">chuckk</span>" is in group "audio".<br><br>Lastly, the output from my script when the second sudo chrt line is commented out:<br>------------------------------
<br>pid 684's current scheduling policy: SCHED_FIFO
<br>pid 684's current scheduling priority: 82<br>jackd 0.103.0<br>Copyright 2001-2005 Paul Davis and others.<br>jackd comes with ABSOLUTELY NO WARRANTY<br>This is free software, and you are welcome to redistribute it
<br>
under certain conditions; see the file COPYING for details<br><br>JACK compiled with System V SHM support.<br>pid 5132's current scheduling policy: SCHED_OTHER<br>pid 5132's current scheduling priority: 0<br>loading driver ..
<br>Enhanced3DNow! detected<br>SSE2 detected<br>apparent rate = 44100<br>creating alsa driver ... hw:0|-|256|2|44100|0|0|nomon<div id="mb_0">|swmeter|-|32bit<br>control device hw:0<br>configuring for 44100Hz, period = 256 frames, buffer = 2 periods
<br>ALSA: final selected sample format for playback: 32bit little-endian<br>ALSA: use 2 periods for playback<br><br>--------------------------------------<br clear="all"><br>Any ideas what I may have missed or misconfigured?
<br><br>Thanks!<br>-<span id="st" name="st" class="st">Chuckk</span></div><br clear="all"><br>-- <br><a href="http://www.badmuthahubbard.com">http://www.badmuthahubbard.com</a>