To SMP or not to SMP

[Erich Dollansky]

Hi,

On Tue, 08 Jan 2013 08:29:51 -0800
Mark Atkinson <atkin901 at gmail.com> wrote:

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> On 01/07/2013 18:25, Barney Cordoba wrote:
> > I have a situation where I have to run 9.1 on an old single core
> > box. Does anyone have a handle on whether it's better to build a
> > non SMP kernel or to just use a standard SMP build with just the
> > one core? Thanks.
> 
> You can build a SMP kernel, but you'll get better performance (in my
> experience) with SCHED_4BSD on single cpu than with ULE.
> 
I would not say so. The machine behaves different with the two
schedulers. It depends mostly what you want to do with the machine. I
forgot which scheduler I finally left in the single CPU kernel.

Erich