As far as using PV vs HVM I would say that most people who use(d) HVM migrated to KVM already.
PV is XEN distinct advantage over KVM as it improves performance even on machines with full virtualization support, especially for CPU and network-intensive loads.
As far as using PV vs HVM I would say that most people who use(d) HVM migrated to KVM already.
PV is XEN distinct advantage over KVM as it improves performance even on machines with full virtualization support, especially for CPU and network-intensive loads.