SCHED_4BSD in RELENG_7 disturbs workflow

[Ivan Georgiev]

On Wed, 17 Oct 2007 22:53:36 +0200
Patrick Lamaiziere <patfbsds+questions at davenulle.org> wrote:

> Le Tue, 16 Oct 2007 21:14:15 +0200,
> "[LoN]Kamikaze" <LoN_Kamikaze at gmx.de> :
> 
> > Quite the contrary on RELENG_7. During a portupgrade or even worse
> > 'pkgdb -L' (recovering lost dependencies) audio players (both
> > graphical and mplayer) scatter, either because they don't get the
> > hard-disk or CPU-cycles (which one, I don't know) and the focused
> > application also often hangs. It just looks like occasionally (under
> > load) everything freezes for a second and then goes on relatively
> > normal.
> 
> I've got the same problem on 7.0-PRERELEASE/i386. Audio players
> scatter when the machine is loaded. On 6.2 it worked fine (with Xorg
> 7.3 too). With SCHED_ULE it is a lot better.
> 
> I put a full dmesg here :
> http://user.lamaiziere.net/patrick/dmesg.txt
> 
> Regards.
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> 

Well, I get the very same behavour in 6.2-STABLE with the SCHED_4BSD
on a UP machine. On the same machine i have a much better working
experience using the ULE scheduler, no matter they say it is outdated
and buggy in 6.2.

Regards:
Ivan