On Monday 10 November 2003 22:26, Muli Ben-Yehuda wrote:
> On Mon, Nov 10, 2003 at 09:58:29PM +0200, Dan Fruehauf wrote:
> > Evening,
> >     Recently i discovered that my machine (a dual p3 450MHz with
> > 256mb of ram) is
> > very slow. top says that somewhat like 30% of cpu cycles are being used
> > by the system level.
>
> That's a lot. What kind of activity is it doing at the moment?
>
> > i suspect that it might be the SMP support which is
> > compiled into the kernel, mainly because when compiled with no SMP it
> > runs just about fine,
>
> Uhm, when compiled with no smp, it runs with just one CPU.
>
> >     I'm using kernel version 2.4.22 (stable, as for today). If anyone here
> > has any idea of anything i could try (hey, i'm not the first one to use
> > SMP in linux! ) i'd love to hear about it.
>
> You could give 2.6 a shot and report how it feels for you if you're up
> to it. Alternatively, a description of what exactly you're doing that
> causes the SMP kernel to behave worse than the UP kernel (is that
> really what happens?) and the output of 'vmstat 1' would be useful.
>
> >     If no one has anything to say, i'll probably profile the kernel, and
> > submit a bug report.. (in the latest changlogs i couldnt find anything
> > related to that problem).
>
> That will even better. I recommend oprofile, http://oprofile.sf.net
>
> Cheers,
> Muli

Hi again,
i seemed to take the advice of "install 2.6" which i thought was the most 
reasonable one, and it totally solved the problems - now my system is fast 
and neat! :)

-- 
Dan Fruehauf.


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