Here is a semi-recent benchmark for Phoenix, which is written in Elixir (runs on the Erlang VM, BEAM). I think it will give you a decent idea of the differences: https://gist.github.com/omnibs/e5e72b31e6bd25caf39a

I would like to see this run with the latest versions of the various platforms, as a lot has changed since Phoenix 0.13, and I'm sure it has for the other platforms that were benchmarked as well. Initially, it seems like there is not a lot of difference between most of the platforms, but when you're working with variances of 1-2 ms on 180k rps is pretty substantial.