Since I've been developing a lot of Clojure, I find emacs gets really, really slow over time, until I restart. I might switch to boot to have only the one JVM instance, but, is there anything else I can do to diagnose what bad habit I might have that's causing this?

@mathpunk i've had luck clearing the repl buffers when they get too full. if you're using CIDER, you can hit , on the repl prompt to get a helpful menu which includes a way to clear the buffer