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Re: multiple processors




On Thu, 30 Jul 1998, Erez Doron wrote:

> has anyone experianced using linux on
> a computer which has more than one processor ?
> 
> how hard is it to configure ?

like people said here, it's pretty easy to recompile, but remember to make
clean before recompiling with the SMP = 1 thing on.

we've been running it on a Goliath with two Ppro 200 CPUs for a while now.
2.0.33 was nice and stable, then I took it down after an uptime of over
100 days only to add memory (128 meg -> 512) and took the chance to
compile 2.1.110 on it and it runs stable ever since (over a week so far,
no glitches happend so far).

2.1 is getting really stable these days. the feature freeze melted, and
will have to be declared again, but it's pretty much becoming finished.
Intel helped VA research with data and specs for the XEON, it took only 12
lines of code to make linux run on a quad XEON, days after it hit the
market. I saw that machine running at the "future of Linux" convention 2-3
weeks ago, it's cool to see xosview report loads on 4 seperate CPUs :-)

ONE caveat though, although it's very stable (I use it for production, so
does Dejanews, and don't quote me but I know for a fact that Trasmeta does
the same), SMP kernels have a horrible problem with tracking time
correctly. make sure you lock your SMP machine to another unix or
single-CPU linux box through xntpd (the easiest daemon to configure I
know).

-- 
Ira Abramov    <ira(a)scso.com>     whois: IA58   (a linux enthusiast)

She sells cshs by the cshore.       - Rob Malda