[phleet]

Thank you for posting this!

We've done similar performance analysis at Khan Academy by using the navigation timing API and throwing the data into graphite. The most interesting part of this post for me is seeing that the numbers (server side times, median client times) are roughly the same as ours (http://i.imgur.com/wKglMTc.png)

One thing that I see in both GitHub's data and our data is this daily-periodic increase in both server and client times. Is that just load? We had theories that the clientside spikes may be caused by users in less CDN covered areas, or an increase in mobile usage, but were never fully satisfied by those explanations.