Re: Juli@-Card and hanging process snd-ak4114/0

[Sebastian Benoit <benoit-lists@fb12.de>]

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Hi,

Jaroslav Kysela(perex@suse.cz) on 2005.03.10 18:14:12 +0000:
> > The main problem is, that a process "snd-ak4114/0" is using 60% of my CPU
> > time. I would like to solve this problem, and have started reading trough
> > the code. But it seems I need some pointers where to look ;-)
> 
> You may try to change queue_delayed_work(chip->workqueue, &chip->work, 1);
> to queue_delayed_work(chip->workqueue, &chip->work, 2); (or highter value)
> in alsa-kernel/i2c/other/ak4114.c .

A value of two gives me 40% CPU time, with 100 the process uses ~2%.
 
> It seems that i2c takes too much time. Or it might be, that the scheduler 
> code for task statistics is somewhat broken.

My other process behave like they dont get enough time, so i think the
scheduler stats are right ;-)

With the value in ak4114.c set to 100 everything is working. I don't know
about spdif, i haven't tried that, am i right that the ak4114.c code manages
digital i/o?

My application is recording and playing (something differen) at the same
time via this card, and that works fine now, except for the output volume.

I am willing to test more. Is someone working on the mixer code?

Thanks for your help.
/B.
-- 
Sebastian Benoit <benoit-lists@fb12.de>
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