Terminal and shell performance
It would also be great to see how these scale with terminal size. I personally use iterm2 but after switching to a new Macbook pro this year with two 5k  displays it's noticeably slower. I'm assuming some O(n^2) scaling behind the scenes but I haven't measured anything myself. Still, @gnachman I love your term especially with terminalplots.jl and drawing Julia repl images inline.