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In this session we'll explore performance characteristics of traditional VMs vs Docker containers from both a Cloudy ops perspective (boot, stop, start, etc.) as well as an "in the guest" perspective. In particular we'll present Cloudy benchmark results using OpenStack as the Cloud manager comparing operational times between the nova-docker virt driver and the libvirt-kvm driver along with compute node resource metrics. We'll also look at some "in the guest" performance benchmark results including CPU, memory, network, I/O, etc. to gain a better baseline understanding of VM vs LXC runtime performance. Finally we'll outline some implications of the results and suggest areas for community focus moving forward.