> The answer is "no" the operating system determines the processor
> usage. When processor 1 is all used up, then the OS instructs the
> system to begin using both processors to carry the load. Only one
> processor is used during minimal usage.

This might have been true for earlier OS's, but NT and 2000 definitely
take advantage of multi-processors

All of our servers (apart from one which is about to be upgraded) run on
2 processors and when a "heavy" request or multiple requests come in,
you can see both processors "bobble" with responses

>From speaking to an Intel rep at DevCon 2000, they had an 8 processor
machine there to demonstrate that CF would happily work with that many
processors - I think he gave some stats that it worked out that each
additional processor gave roughly a 60% increase in speed compared to a
single processor - thus 2 procs=160%, 3 procs=220% etc.

I've noticed a MARKED increase in speed on servers with dual processors
after the 2nd is installed...

On a side note, we also never put below 640Mb RAM into any of the
servers, it's not worth going below 512Mb these days... We now build new
machines to 1Gb RAM

Philip Arnold
Technical Director
Certified ColdFusion Developer
ASP Multimedia Limited
Switchboard: +44 (0)20 8680 8099
Fax: +44 (0)20 8686 7911

www.aspmedia.co.uk
www.aspevents.net

An ISO9001 registered company.

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