- Mark Brinsmead wrote:
>>>>>after much snippage
> So, the question remains, are server-class systems
> built on multi-core
> processors comparable in speed to systems built with
> single-core CPUs?
> Or more to the point, are they more than half as
> fast, since the
> database licenses now cost only half as much? (On
> x86 architectures,
> that is.)
>
I would have to say no simply because each core is
sharing the CPU cache and also the bus bandwidth to
main memory. I would have to assume that the two
cores would then be competing for IO for these
resources. I'm sure that a dual core would be faster
than a single core, but I'd still prefer 2 single core
CPU's each having exclusive access to it's own CPU
cache.
Mind you, some of those Sun Niagara 8-core chips
coming out sure seem intriguing.
my 2 cents fwiw
--
mohammed
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Received on Wed Dec 21 2005 - 14:50:27 CST
