I didn't hit any limit, but since I don't have swap it would likely be oom kills.
The first part of my post is speculating, the second part I ran an arbitrary number and observed resource usage to allow extrapolation, but didn't hit a limit.
Thanks for reproducing the experiment. :) I sent a message to tianon asking him if he remembers what the original numbers were. He told me long ago, I think it was around 1000. This was well before the go shim or dockerd existed.
The first part of my post is speculating, the second part I ran an arbitrary number and observed resource usage to allow extrapolation, but didn't hit a limit.