Takes a history and produces a map of nodes to sequences of t offset pairs, representing the changing clock offsets for that node over time.

Plots clock offsets over time. Looks for any op with a :clock-offset field, which contains a (possible incomplete) map of nodes to offsets, in seconds. Plots those offsets over time.

Takes a collection of node names, and maps them to shorter names by removing common trailing strings (e.g. common domains).