Re: [LAU] Issue with the priority of the sound cards using rtirq

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To: <linux-audio-user@...>
Date: Tuesday, May 1, 2012 - 6:32 pm

On 05/01/2012 04:17 AM, Jeremy Jongepier wrote:

(I don't seem to find the start of the thread in my mailbox)

ohci_hcd is there is you specify usb in the list of priorities rtirq
needs to raise. And nvidia is there probably because it shares an
interrupt with a real soundcard. Rtirq does not raise the priority of
only the soundcard, but everything that uses the interrupt that the
soundcard uses.

AFAIK it is not possible (or simple) to raise _just_ the soundcard as it
is impossible to know which irq process corresponds to a soundcard (and
which one does not). That is because the labeling of the irq process
names in the ps listing is arbitrary. At least that is what I remember
seeing last I looked at this issue. You can of course manually lower the
priorities of non-soundcard irq processes with chrt.

-- Fernando

>The steps between the priorities

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Messages in current thread:
Re: [LAU] Issue with the priority of the sound cards using r..., Fernando Lopez-Lezcano, (Tue May 1, 6:32 pm)
Re: [LAU] Issue with the priority of the sound cards using r..., Fernando Lopez-Lezcano, (Thu May 3, 6:26 am)
Re: [LAU] Issue with the priority of the sound cards using r..., Fernando Lopez-Lezcano, (Thu May 3, 5:01 pm)
Re: [LAU] Issue with the priority of the sound cards using r..., Fernando Lopez-Lezcano, (Thu May 3, 11:39 pm)
Re: [LAU] new rtirq release, Fernando Lopez-Lezcano, (Fri May 4, 7:08 pm)
[LAU] rtirq question, Ivica Ico Bukvic, (Sat May 5, 2:42 am)
Re: [LAU] rtirq question, Ivica Ico Bukvic, (Sat May 5, 3:02 am)
Re: [LAU] new rtirq release, Rui Nuno Capela, (Fri May 4, 9:56 pm)
Re: [LAU] new rtirq release, Fernando Lopez-Lezcano, (Fri May 4, 11:14 pm)
Re: [LAU] new rtirq release, Rui Nuno Capela, (Fri May 4, 11:42 pm)
Re: [LAU] new rtirq release, Brendan Jones, (Fri May 4, 3:36 pm)
Re: [LAU] new rtirq release, Ralf Mardorf, (Fri May 4, 4:26 pm)
Re: [LAU] Issue with the priority of the sound cards using r..., Fernando Lopez-Lezcano, (Thu May 3, 8:23 pm)