eli.carter@xxxxxxxxxxxxxx <eli.carter@xxxxxxxxxxxxxx>: > > Indeed. I have a single Opteron 3400 that is cranking a measured 1.65 > > times better performance than my previous machine on doclifter, my > > monster Python app -- which doesn't sound impressive until you > > consider that the previous machine was a 2-processor SMP with 1.8GHz > > Athlons. So my real-world throughput is as good or (allowing for > > Amdahl's Law inefficiencies) better than what I'd get from a 6 GHz > > Athlon, if such a thing existed. > > I was under the impression that the Python interpreter was serialized > and thus unable to take good advantage of SMP systems. > If that's the case, then you'd only be getting one of those 1.8GHz > processors beating on 'doclifter'... and if that's the case, you'd be > looking at a 3GHz Althon instead of 6GHz. Hmm...you're probably mostly right about this. The Python app would get some gain from background daemons and X traffic migrating to the other processor, though. -- <a href="http://www.catb.org/~esr/";>Eric S. Raymond</a>
