I've been spending a lot of time looking at server performance over the holidays. Optimizing and trying to avoid drops. I've been working at trying to make server owners be more aware of what's happening on their server - and how it's performing. Trying to make it less of a black box, so any reports of lagging out and shitty performance can be diagnosed more easily. I was thinking of embedding a http server and making all kind of stats and admin tools available. In the end I decided that while that would be super useful and super awesome, I'd end up spending more time developing it than it would be worth.. but maybe it's something we'll pick up in the future. For now I added a little FPS indicator to the console.
My plan right now is to make more stats and insight available over time (like bandwidth usage).. but for now this simple fps counter is incredibly useful.
Performance is 'ok' right now. What you'll find is that after loading a save your server's framerate will drop to about 10fps until it's finished working out all the building's stability details. After that it should run ok for a few days until it needs a wipe. I'm making a lot of progress on making wipes be required a lot less frequently.