> Erlang / Elixir processes use about 0.5kb per process Last I checked it used about 2.5K. Beam reserves around 300 words per process (depends on exact options

> Erlang / Elixir processes use about 0.5kb per process Last I checked it used about 2.5K. Beam reserves around 300 words per process (depends on exact options), but a word is 8 bytes not 8. You can get it lower (obviously at a cost as soon as you start using the process and need space) but nowhere near 512 bytes, just the process overhead is around 800.