probably had a lot to do with the workload; this machine was used as a 
shell machine and had a heavy mail and netnews load, lots of interactive 
io, lots of processes.. i can imagine that the smp mode spent a lot of 
time in that kind of workload in spin-locks.. but it is a second-hand 
information source, as i wasnt myself there at the time.. 

isildur

On Fri, 11 Jan 2002, Anders Magnusson wrote:

> >
> > processor mode after they discovered it was actually faster than running on
> > both processors... so, ymmv. but yes, ultrix does do SMP. 
> > 
> That's really not true :-) I have a running 8800 here, and while it was 
> working as ftp server it was easily diagnosed to give very close to the
> double capacity when the second CPU was turned on. I'd say that the 
> Ultrix SMP implementation works very well for such use.
> 
> -- Ragge
>