On Wed, 5 Dec 2001, Stefan Westerfeld wrote:

> stefan@stefan:~$ artsshell status | grep real-time
> real-time status: not real-time

$ artsshell status |grep -i real
real-time status: real-time

ok.. it's switched on, but as I talk, I'm doing an apt-get upgrade which
involves lots of disk activity, and the sound (from xmms) is chopping up.
If I switch xmms to using direct ALSA or OSS emulation, the sound is fine.

> /dev/rtc doesn't have to do anything with the scheduling priority. You need

er..but scheduling priority has nothing to do with realtime.  Setting a
different "nice value" just means the process gets more attention than
user processes.  Disk access is a kernel process and disk access is
causing the music too chop up because it's getting priority over artsd!

The ALSA driver uses a kernel patch which provides realtime callback
support which actually binds realtime clock signals to alsa processes.
Can't artsd use this?

> to run artswrapper (which must be installed suid root) to get artsd running
> with realtime priority.

I don't think you mean "realtime" here, unless I've missed something?



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