On 03/04/2017 19:22, James Okken wrote: > Sorry Paolo, it was my understanding inferred from other sources that caused me to infer the wrong thing from what you said. > :) > > Thank you for the advice. I will look into nohz_full in the host and the guest, as well as the Linux realtime patch > > So may I infer from what you said that we can get better realtime performance by tweaking HVM VMs, both on KVM and XEN? For Xen, PVHVM and HVM are more or less the same. However, PVHVM is a bit less resource-intensive due to how Xen HVM works, and therefore it is preferrable for recent Linux guests as far as I know. Paolo
