Early to mid December is the busiest time on the #CloudLab testbed. The two biggest factors are the #OSDI paper submission deadline and the end-of semester crunch in classes. Our users are running 609 simultaneous experiments right now!

These graphs show node availability, starting today and going out through the next several days. As you can see, almost all node types have zero or just a handful of nodes available today[*].

To help alleviate this, we've built a reservation system that allows users to request time on nodes in the future - the points on the graph past today give you a sense of what's available to be requested for reservations.

Good luck with your papers and courses, everyone!

[*] There are a lot of m400 nodes available on the Utah cluster - these are server-class ARM machines, but are several years old, hence the lower interest in them.