SR-IOV should not really make you nervous, it uses the iommu. Billing might have some issues I guess. There are higher performance virtual network setups eg se

SR-IOV should not really make you nervous, it uses the iommu. Billing might have some issues I guess. There are higher performance virtual network setups eg see http://www.virtualopensystems.com/en/solutions/guides/snabbswitch-qemu/ http://www.virtualopensystems.com/en/solutions/guides/snabbs... Container networking has overheads, the virtual network pairs and the natting is not costless at all, and most people with network intensive applications are allocating physical interfaces to containers anyway.