Virtual CPUs with VTx can be made to run at essentially native speed for most workloads on most fairly modern CPUs. Memory performance can be subpar, although there&#x27;s public documentation on techniques that can improve that: <a href="https:&#x2F;&#x2F;help.ubuntu.com&#x2F;community&#x2F;KVM%20-%20Using%20Hugepages" rel="nofollow">https:&#x2F;&#x2F;help.ubuntu.com&#x2F;community&#x2F;KVM%20-%20Using%20Hugepage...</a><p>I&#x2F;O performance is a whole other story, dependent on many workload and hypervisor specific factors.