For a virtual machine with a guest OS - Windows, what is the best virtualization to choose? XEN or KVM?

Question

Xen

On windows machines, completely different tasks will be performed.
Interested in minimal losses during virtualization.
Is KVM or XEN better for me? Or is it not that big of a difference?

Any linux or Xenserver 6.5(6.2) can be installed on a dedicated server.
CPU - 2 x Intel Xeon 5420 (supports virtualization)

Answer 1

KVM, no question. Xen is a third-party garbage that works below the linux kernel and loads it, and KVM runs right in the kernel. Why do you need extra padding? From a performance standpoint, there is no difference.