Re: 2.6.8-rc2-mm2

[Nick Piggin]

Ingo Molnar wrote:
> * Nick Piggin <nickpiggin@xxxxxxxxxxxx> wrote:
>
>
> > Also, basic interactivity in X is bad with the interactive sysctl set
> > to 0 (is X supposed to be at nice 0?), however fairness is bad when
> > interactive is 1. I'm not sure if this is an acceptable tradeoff - are
> > you planning to fix it?
>
>
> it also has clear interactivity problems when just running lots of CPU
> hogs even with the default interactive=1 compute=0 setting.
>
>
> > Increasing priority (negative nice) doesn't have much impact. -20 CPU
> > hog only gets about double the CPU of a 0 priority CPU hog and only
> > about 120% the CPU time of a nice -10 hog.
>
>
> this is a property of the base scheduler as well.

*blush*. Well I shouldn't have singled out the staircase scheduler
with this then.

I think I would prefer your nonlinear ratios better though.
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