On Saturday 21 July 2007, Atte André Jensen wrote: > Hi > > I trying out ubuntu with ubuntustudio kernel. In debian I always set the > priority of the IRQ's using > > chrt -f -p 85 `pidof "IRQ 8"` > > However that doesn't work in ubuntu. The reason is that there seems to > be no process named "IRQ 8": > > atte@ajstrup:~$ ps aux | grep -i IRQ > root 3 0.0 0.0 0 0 ? SN 13:43 0:00 > [ksoftirqd/0] > atte 6274 0.0 0.0 2884 772 pts/0 R+ 13:51 0:00 grep -i > irq > > Whereas on debian I would get: > > atte@ajstrup:~$ ps aux | grep IRQ > root 18 0.2 0.0 0 0 ? S< 13:34 0:00 [IRQ 9] > root 261 0.0 0.0 0 0 ? S< 13:34 0:00 [IRQ 4] > root 286 0.0 0.0 0 0 ? S< 13:34 0:00 [IRQ > 12] > root 300 0.0 0.0 0 0 ? S< 13:34 0:00 [IRQ 1] > root 608 0.0 0.0 0 0 ? S< 13:34 0:00 [IRQ > 11] > root 761 0.0 0.0 0 0 ? S< 13:34 0:00 [IRQ > 14] > root 787 0.0 0.0 0 0 ? S< 13:34 0:00 [IRQ > 15] > root 1592 0.0 0.0 0 0 ? S< 13:34 0:00 [IRQ 8] > root 1593 0.0 0.0 0 0 ? S< 13:34 0:00 [IRQ 7] > root 1683 0.0 0.0 0 0 ? S< 13:34 0:00 [IRQ > 10] > atte 4672 0.0 0.0 2848 704 pts/1 R+ 13:41 0:00 grep > IRQ > > I suspect it has something to do with "ksoftirqd" which according to the > man page seems to be a daemon handling irqs. > > http://tapas.affenbande.org/wordpress/?page_id=40 also doesn't seem to > take ksoftirqd into account. > > So my question is: How do I set the priorities in ubuntu? Is it > possible/clever/stupid to get rid og ksoftirqd and get things working > the way I'm used to under debian, and if so how? No, ksoftirq shouldn't have anything to do with it.. HEre's what the output of that is on my system: ~$ ps aux|grep IRQ root 41 0.0 0.0 0 0 ? S< Jul21 0:00 [IRQ-9] root 775 0.0 0.0 0 0 ? S< Jul21 0:00 [IRQ-8] root 812 0.0 0.0 0 0 ? S< Jul21 0:09 [IRQ-12] root 813 0.0 0.0 0 0 ? S< Jul21 0:00 [IRQ-1] root 2032 0.0 0.0 0 0 ? S< Jul21 0:00 [IRQ-16] root 2110 0.0 0.0 0 0 ? S< Jul21 0:00 [IRQ-17] root 2152 0.0 0.0 0 0 ? S< Jul21 0:03 [IRQ-14] root 2192 0.0 0.0 0 0 ? S< Jul21 0:02 [IRQ-15] root 2745 0.4 0.0 0 0 ? S< Jul21 3:42 [IRQ-18] root 3629 0.0 0.0 0 0 ? S< Jul21 0:00 [IRQ-7] root 3785 0.1 0.0 0 0 ? S< Jul21 0:55 [IRQ-19] tapas 14252 0.0 0.0 2884 752 pts/1 R+ 01:35 0:00 grep IRQ ~$ uname -a Linux balabala 2.6.20-16-realtime #2 SMP PREEMPT Fri Jun 15 04:43:25 CEST 2007 i686 GNU/Linux Let's see your uname -a output please.. Flo -- Palimm Palimm! http://tapas.affenbande.org _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-user
