Tuning the scheduler? Desktop with a CPU-intensive task becomes rapidly unusable.

[Andriy Gapon]

on 04/09/2010 03:14 David Xu said the following:
> I think sysctl kern.sched.preempt_thresh is too low, default is only 64. I
> always tune
> it up to 200 on  my desktop machine which is running gnome and other GUI
> applications,
> for a heavy GUI deskkop, I would tune it up to 224 to get better result.

And turns out I have this in my sysctl.conf :-)

# should give more responsivness on desktop
# suggested by David Xu <davidxu at freebsd.org>
kern.sched.preempt_thresh=220

Apparently I have it for so long in there that I forgot that I do.
Thanks again!
-- 
Andriy Gapon