Another great example how a couple of traditional unix tools (if you want to count perl and gnuplot as traditional unix tools) can replace 250 lines of high-level language code (https://github.com/orf/gping/blob/master/src/main.rs).
Fantastic, thanks, I think this was the final push I needed to start abusing gnuplot.
Though for some reason the plot only updates when I give or take the plot window focus (refreshperiod mentioned in the man page doesn't seem to help, and I think it should default to 1Hz).