Re: [PATCH][RSDL-mm 0/7] RSDL cpu scheduler for 2.6.21-rc3-mm2

Ingo Molnar
2007-03-13T08:23:09Z

* Con Kolivas <kernel@kolivas.org> wrote:

> > It's not "offensive" to me, it is a behavioral regression. The
> > situation as we speak is that you can run cpu intensive tasks while
> > watching eye-candy. With RSDL, you can't, you feel the
> > non-interactive load instantly. Doesn't the fact that you're asking
> > me to lower my expectations tell you that I just might have a point?
>
> Yet looking at the mainline scheduler code, nice 5 tasks are also
> supposed to get 75% cpu compared to nice 0 tasks, however I cannot
> seem to get 75% cpu with a fully cpu bound task in the presence of an
> interactive task. [...]

i'm sorry, but your argument seems to be negated. We of course have no
problem with interactive tasks stealing CPU time from CPU hogs. The
situation Mike found is _the other direction_: that /CPU hogs/ stole
from interactive tasks. That's bad and needs to be fixed. Please?

Ingo