[rescue] pursuing a VAX
Joshua D Boyd
jdboyd at cs.millersville.edu
Mon Dec 9 15:31:20 CST 2002
On Mon, Dec 09, 2002 at 04:18:16PM -0500, Kurt Huhn wrote:
> Eric Dittman <dittman at dittman.net> wrote:
>
> > At least, they shouldn't. I've heard Wintel-worshippers say
> > things like, "I've got a dual 1GHz Pentium III system, so it's
> > twice as fast as a 1GHZ Pentium III!" which isn't close to the
> > truth. You can't correct them, either.
>
> How much faster, on average, would such a system be? I know it's not
> linear, but is there a good rule of thumb for that?
On intel, it seems to range from being 1.05x the speed of a single proc,
to 1.9x the speed of single proc. But in general, there are all sorts
of other issues. Like Pentiums have to give up their L2 for SMP, etc.
--
Joshua D. Boyd
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