Array allocation is about the the worst thing you can do, at about 9μs, and record allocation 6μs. I don't quite understand that. Record and array lookup and update are about the same, so it seems like mostly you want to do everything with records, unless you want things like push and pop and whatnot.
In the evening I wandered around KGB's Capture the Flag With Stuff event for a time, not playing but talking to alums like
Tomorrow = busy.