This is very dependent on setup. If your IO is mostly done to SR-IOV devices, your perf will be very close to native anyway. The difference would be about the I

This is very dependent on setup. If your IO is mostly done to SR-IOV devices, your perf will be very close to native anyway. The difference would be about the IOMMU (I have no idea if there's a significant difference between the two here). If devices are being emulated, the perf probably has more to do with the implementation of the devices than the platform itself.