[Gllug] Moving processor between boxes

Adrian McMenamin adrian at mcmen.demon.co.uk
Mon Feb 6 09:39:56 UTC 2006


On Mon, 6 February, 2006 8:21 am, t.clarke wrote:
> Chris
> Agreed that my comments were an over-simplification!
> The point I was trying to make, badly, is that if you run a cpu-intensive
> process to 'benchmark' a single cpu and the run the same benchmark against
> a two-cpu machine of the same spec the difference in speed will be
> marginal
> (assuming nothing else significant running).

Benchmarks are pretty poor approximations to the real world in this case.
Think of a typical server - handling web driven database queries - or a
desktop - waiting for user input as well as email.

In any case the kernel itself has more than one thread of execution running.

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