hahaha - I've done something similar. I had an automated vitest harness running and at one point it ended up leaving a bunch of zombie procs/threads just vampirically leeching the crap out of my resources.

I naturally assumed that it was my code that was the problem (because I'm often the programmer equivalent of the Seinfeld hipster doofus) and spent the next few hours optimizing the hell out of it. It turned out to be unnecessary but I'm kind of glad it forced me into that "profiling" mindset.