It should have been VMware with emulation, not Xen. You are correct The overhead of running a VM absolutely changes depending on whether it is a type 1 hypervi

It should have been VMware with emulation, not Xen. You are correct The overhead of running a VM absolutely changes depending on whether it is a type 1 hypervisor or a type 2 hypervisor or if the runner/monitor supports acceleration. You can run a VM with QEMU without accel=kvm and it will be dog slow. Try it.