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

Ingo Molnar
2008-02-29T19:46:22Z

* Alexey Zaytsev <alexey.zaytsev@gmail.com> wrote:

> On Thu, Feb 28, 2008 at 11:16 PM, Ingo Molnar <mingo@elte.hu> wrote:
> >
> > * Ingo Molnar <mingo@elte.hu> wrote:
> >
> > > > Anything else I can do?
> > >
> > > yes, please test the patch below - does it fix the problem?
>
> The patch worked well, thanks
>
> I still observe some uneven mouse behaviour during compilations (linux
> kernel, make -j 6), like, when I slowly move the mouse, it would stop
> for a split of a second every few seconds (the intervals are not
> equal). On 2.6.23/24 it works very smooth. Of course, I can't say that
> the scheduler is to be blamed. It was only my assumption because I
> thought I might be confused by the non-monotinic time, which I see is
> not the case. Any ideas, how to debug this?

could you try latencytop, what does it say, what type of scheduler (and
other) delays are there?

Ingo