Good question! At first I thought that maybe I wasn't waiting long enough after the load generator finished, but I just ran an experiment with a longer pause an

Good question! At first I thought that maybe I wasn't waiting long enough after the load generator finished, but I just ran an experiment with a longer pause and I still don't see a scaling down after the traffic stops! Perhaps my naive implementation of the PID controller isn't good enough, maybe: > you'll probably want to put a maximum on your integral accumulator is needed as icegreentea2 pointed out.