[RC5] Tillamook cpu selection problem
jim.mcmanus at ibm.net
Sat Nov 29 15:15:08 EST 1997
I ran the benchmark from the GUI and, no surprise, the pentium, pentium MMX
core was the fastest. I was curious how the processor is determined. I noticed
that when NT starts is somehow knows it's in a "genuineintel" processor. Does
the code look for something embedded in the processor that is returned when
some certain instructions are run? Or does it run a few instructions and guess
based on the results?
Reid Conti wrote:
> > I just got a Toshiba 750 which has the new 233MHz mobile pentium, and almost
> > everytime I start the client it picks a different core. Out of the six available
> > cores,
> > it's picked everyone except the AMD K6. Any ideas on why it keeps cycling the
> > processor cores?
> They're probably close. Try doing -benchmark2 specifying each core.
> You'll probably find 2 or 3 that have VERY similar speeds, some that are
> WAY off. Then -benchmark the last 2 or 3 that are close, and pick the one
> that looks the fastest :)
> - reid
> Si l'homme est créé libre, il doit se gouverner;
> Si l'homme a des tyrans, il les doit détrôner.
> - Voltaire, Epîtres
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email me at jim dot mcmanus at ibm dot net
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