Re: Terrible interactivity with 2.6.0-t9-mm3

john stultz
2003-11-17T19:40:39Z

On Mon, 2003-11-17 at 11:36, Andrew Morton wrote:
> "Ronny V. Vindenes" <s864@ii.uib.no> wrote:
> > I've found that neither linus.patch nor
> > context-switch-accounting-fix.patch is causing the problem, but rather
> > acpi-pm-timer-fixes.patch & acpi-pm-timer.patch
> >
> > With these applied my cpu (athlon64) is detected as 0.0Mhz, bogomips
> > drops to 50% and anything cpu intensive destroys interactivity. Revert
> > them and performance is back at -mm2 level.
>
> ah hah. Thank you!
>
> Probably the interactivity problems are due to the CPU scheduler thinking
> that the CPU runs at 0Hz. If we can work out why the PM timer patch has
> broken the CPU clock speed detection then all should be well.

Hrmm. I'll look into this.

thanks
-john