For virtual machines, when SMP is available on the host, should guest also have SMP setup?

Posted by supercheetah on Super User See other posts from Super User or by supercheetah
Published on 2010-03-30T22:59:33Z Indexed on 2010/03/30 23:03 UTC
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Filed under:

linux

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virtualbox

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smp

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windows-vista

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virtualmachine

I'm trying to find out the best "bang for my buck" so to speak in regards to virtual machines, and SMP.

I have an Intel Core 2 Duo, which of course has two cores and the VT extensions, and I'm running Ubuntu Linux (host) on it with VirtualBox, which has Windows Vista (guest).

Currently I've got the guest machine setup for two processors to give Windows a chance to manage its own parallelism, but I'm not certain that it's any faster. I've tried it with just one processor, but it's hard to tell if it's any better.

Any thoughts? Should the guest have two processors setup?

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