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by marcoceppi 3485 days ago
Sure, Xen is a hypervisor - just like KVM and a whole host of others, but Xen is /very/ heavy from a resource utilization. Xen doesn't produce lightweight VMs, they're traditional virtulation. You can produce 13 times more density with no performance trade off. No virtio, no paravirtualization, using native kernel primitives to get you machines that feel like "docker" containers, but are actual full machines.