I made a multi-connection network bandwidth test tool

I created it in response to this question on how to max out 100gb connections:

https://www.reddit.com/r/networking/comments/gd1hce/what_does_it_take_to_fill_up_100gbase/

It is super basic and there are probably other things that do this already.

https://github.com/fireduck64/stoathorde