Re: [gentoo-amd64] kernel.org vs. Gentoo-64 bit kernels (xruns)

[Mark Knecht]

On 9/20/05, Daniel Gryniewicz <dang@g.o> wrote:
> On Tue, 2005-09-20 at 09:58 -0400, Billy Holmes wrote:
> > Mark Knecht wrote:
> > > Thanks. Yes, I've run ck-sources a few times in the past but not had
> >
> > when you run with ck-sources, others have found it's best to use
> > SCHED_ISO rather than SCHED_NORM (ck was patched with ISO support) -
> > which is like real time scheduling for users processes. From what I hear
> > it's easier to setup than the rt limits stuff (ie. it's automatic).
>
> Much more important is to run emerge as SCHED_BATCH.  I do this, and it
> keeps emerge for effecting my interactivity (including skips in
> audio/video) at all.
> --
> Daniel Gryniewicz

Daniel,
   This makes sense but I've never heard of doing this before. How
does one run emerge as a SCHED_BATCH process?

   None the less, when recording in Ardour I'll be doing a reasonable
amount of disk I/O. Not so much bandwitch - probably never more than
5-10MB/S on large recordings, but still it's a large number of audio
files and therefore more disk seeking, etc., so I'll want the whole
disk subsystem working well.

Thanks,
Mark

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