Hi All, On https://boeser.ch/files/sys-arch.svg I published our sketches on different system architectures. On the various sketches you see node-1, node-2, node-A and node-B. In all sketches node-1 and 2 are always considered to be containers (lxc-1, lxc-2). node-A and B are in some sketches containers (LXC-A, LXC-B) and VMs in others (VM-A, VM-B). We have in mind two different admins for the red and the white parts in the sketches. Obviously red admin has more power than white admin. It is our primary goal to achieve a good trade off between strong isolation/security and performance. We consider the advantages of virtual machines as follows: - a VMM (Xen, KVM) is considered to be more secure than a random linux   distribution that hosts containerization (LXD, Docker) - isolation between virtual machines is stronger compared to   containers - probably better support to run other OS (e.g. Windows, BSD etc.) We consider the advantages of containers as follows: - efficient in both resources and performance since kernel is shared - faster startup then VMs - "build once run everywhere" Are there any reports you know of about how performance is reduced in a VMM setup compared to a container setup? Or, do you have some experience yourself? Do you have any other thoughts when looking at the sketches? Regards, Sam