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SubjectRe: [khttpd-users] khttpd vs tux

Thanks for commenting on this -

Ingo Molnar wrote:

> On Sat, 3 Nov 2001, J Sloan wrote:
> > Nobody scales better 1-4 CPUs, as indicated
> > by specweb99 - at 8 CPUs linux is OK, but not
> > as dominating....
> This is a common misinterpretation of the TUX SPECweb99 numbers.
> Performance and scalability are two distinct things.

Absolutely correct, I spoke sloppily.
I should have said, "nobody performs better...".

But the scalability certainly _appears_
to be better than average -

> TUX maxes out 2-way and 4-way systems as well, while IIS does not appear
> to do a good job there. So we can say that it's proven that IIS does not
> scale well. I can still not say whether Linux+TUX scales well, i can only
> say that it's too fast for the given hardware :-)


> why does it look like as if TUX scaled well on 1, 2, 4 CPUs? Because
> hardware designers are sizing up systems with more CPUs, so the true
> limits of the hardware show a similar scalability graph as the scalability
> graph would be of a scalable webserver.

Excellent point, thanks for making the distinction.

Thanks as well for the other excellent insights,
it was informative to hear what you had to say.



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