How would you have approached it?
That's for a single node.
Then try multiple nodes / cluster - C1M, C2M, C10M, etc.
Also, all concurrent clients should send periodic pings / keepalives and do something useful (e.g. some CPU work, not just being idle).
Then you'll have to change your conclusion from:
> The data answers my original question: yes, Django LiveView holds up against Phoenix LiveView. In day-to-day operations they are practically equal.
to
> The data answers my original question: yes, under *toy* load Django LiveView holds up against Phoenix LiveView. For *toy* operations they are practically equal.