Re: printk timestamps jumping back and forth in 2.6.25-rc.

From: Ingo Molnar
Date: Tue Mar 04 2008 - 07:44:53 EST



* Alexey Zaytsev <alexey.zaytsev@xxxxxxxxx> wrote:

> On Mon, Mar 3, 2008 at 1:45 PM, Ingo Molnar <mingo@xxxxxxx> wrote:
> >
> > * Alexey Zaytsev <alexey.zaytsev@xxxxxxxxx> wrote:
> >
> >
> > > > I"ll now recompile with fair group scheduler disabled, just to be
> > > > sure.
> > >
> > > Yes, with the group scheduler disabled, the latencies for both Xorg
> > > and gnome-terminal do net exceed 15 ms. And the mouse is also smooth.
> >
> > could you also try the current scheduler fixes lineup in
> > sched-devel.git:
> >
> > http://people.redhat.com/mingo/sched-devel.git/README
> >
> > is the mouse smooth with the group scheduler _enabled_ too?
> >
>
> Works fine. The latencies of both Xorg and gnome-terminal are reported
> to be about 5-20 ms, and the mouse is smooth too.

great - if you dont mind i'll add your:

Tested-by: Alexey Zaytsev <alexey.zaytsev@xxxxxxxxx>

Ingo
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