[LAU] Realtime, but many xruns when jack is started. Debian Etch

[Nigel Henry]

On Thursday 04 October 2007 02:05, Florian Schmidt wrote:
> On Thursday 04 October 2007, Nigel Henry wrote:
> > irq handler priorities:
> >     4 root     -51   0     0    0    0 S  0.0  0.0   0:00.00
> > softirq-high/0 5 root     -51   0     0    0    0 S  0.0  0.0   0:00.03
> > softirq-timer/0 6 root     -51   0     0    0    0 S  0.0  0.0   0:00.00
> > softirq-net-tx/ 7 root     -51   0     0    0    0 S  0.0  0.0   0:00.00
> > softirq-net-rx/ 8 root     -51   0     0    0    0 S  0.0  0.0   0:00.00
> > softirq-block/0 9 root     -51   0     0    0    0 S  0.0  0.0   0:00.00
> > softirq-tasklet 10 root     -51   0     0    0    0 S  0.0  0.0   0:00.03
> > softirq-sched/0 11 root     -51   0     0    0    0 S  0.0  0.0   0:00.00
> > softirq-hrtimer 12 root     -51   0     0    0    0 S  0.0  0.0   0:00.00
> > softirq-rcu/0 184 root     -51  -5     0    0    0 S  0.0  0.0   0:00.00
> > IRQ-8 207 root     -51  -5     0    0    0 S  0.0  0.0   1:23.59 IRQ-14
> > 210 root     -51  -5     0    0    0 S  0.0  0.0   0:00.34 IRQ-15 287
> > root -51  -5     0    0    0 S  0.0  0.0   0:00.16 IRQ-12 288 root    
> > -51  -5 0    0    0 S  0.0  0.0   0:00.00 IRQ-1 605 root     -51  -5    
> > 0    0 0 S  0.0  0.0   0:00.27 IRQ-11 813 root     -51  -5     0    0   
> > 0 S  0.0 0.0   0:01.17 IRQ-9 815 root     -51  -5     0    0    0 S  0.0 
> > 0.0 0:00.00 IRQ-6 847 root     -51  -5     0    0    0 S  0.0  0.0  
> > 0:00.00 IRQ-7 883 root     -51  -5     0    0    0 S  0.0  0.0   0:00.00
> > IRQ-10
>
> Ok, you have not done any irq priority tuning.. Try setting the IRQ-10
> process [your emu10k1] to prio 90..

I'm not sure what I'm doing here. I presume I need to use chrt to change the 
priority, but am not sure of the correct syntax. The current pid for IRQ10 is 
940.

Could you give me a line that will work for this pid, as the man page is 
pretty hopeless with no examples, and about 3 hrs of googling turned up 
virtually nothing.

Many thanks.

Nigel.


> Flo