So I wanted to see how much overhead plug actually adds to cowboy and I tried to add cowboy to the GitHub - the-benchmarker/web-frameworks: Which is the fastest web framework? · GitHub benchmark. It didn’t go quite as expected since cowboy 2.0-pre turned out to be much slower than plug there. So then I tried cowboy 1.1 which plug and phoenix use, but it still was a bit slower. Can maybe somebody with more experience with cowboys look into the code and maybe see ways to improve it?

my fork of the benchmark for

• cowboy 1.1 https://github.com/idi-ot/which_is_the_fastest/tree/8c3680d888c4e9e3b534f9d6b0cb44e83071896c/elixir/cowboy1
• cowboy 2.0-pre https://github.com/idi-ot/which_is_the_fastest/tree/8c3680d888c4e9e3b534f9d6b0cb44e83071896c/elixir/cowboy2

I think I’m using the same ranch options as plug (plug/lib/plug/adapters/cowboy.ex at main · elixir-plug/plug · GitHub) and splitting the path the same way (https://github.com/elixir-lang/plug/blob/master/lib/plug/adapters/cowboy/conn.ex#L92-L95), but something’s off.

Also, here’s the PR thread with some additional details add cowboy and elli · Pull Request #58 · the-benchmarker/web-frameworks · GitHub