Hi all, When I configure a KVM guest to have 2 vcpus, will that be 2 full cores? Or will it give the guest both threads on the same real core? Or might it use half of each of 2 different cores?
I guess the same applies to physical CPUs, too - there's presumably an advantage in giving a VM a set of cores all on the same CPU, to take advantage of shared caching - is that dealt with automatically? I've always assumed that I should allocate even numbers of vcpus on an HT capable machine, so that it keeps the threads together. Does any of this matter? Cheers, Richard
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