retro-httpaf-bench VS crystal

I do. The benchmark results itself is here: https://aws1.discourse-cdn.com/standard11/uploads/ocaml/opti.... This comes from the OCaml multicore monthly news, the october 2021 edition: https://discuss.ocaml.org/t/multicore-ocaml-october-2021/882.... The benchmark's repo is here: https://github.com/ocaml-multicore/retro-httpaf-bench. However that image is not the whole story, and there's a bit more info here: https://watch.ocaml.org/videos/watch/74ece0a8-380f-4e2a-bef5.... In that video, the author says that the result vary depending on the load (sometimes Rust Hyper can end up above OCaml httpaf eio), that OCaml currently uses an io-uring backend while Rust doesn't, and that the results are for single core as previous OCaml implementations are single-core themselves.

I do feel that this benchmark is incomplete. I'd like it to see the results while using all of the cores of a machine, and I'd like to see different type of loads. I do think that the results are impressive: performance between Go and Rust is great. I do hope that it stays this way with multicore.

We don't compare against Go pervasively. Benchmarking across languages is hard generally, but here is a result on a specific benchmark comparing several versions of OCaml benchmarks against Go and Rust on a Http server benchmark: https://github.com/ocaml-multicore/retro-httpaf-bench/pull/1....

If there are suggestions to make the Go and Rust versions, please feel free to tell us how in the issue tracker.

multicore already faster than Go

Multicore is coming along, you can read the latest news here: https://discuss.ocaml.org/t/multicore-ocaml-june-2021/8134

In terms of performance, there is this paper https://kcsrk.info/papers/system_effects_feb_18.pdf where on a single core async OCaml and effect OCaml are close to Go's net/http, and there is also this project https://github.com/ocaml-multicore/retro-httpaf-bench but I haven't see any results from it.

27. Crystal - $77,104

I like the first code example on https://crystal-lang.org

    # A very basic HTTP server

Obviously as an interpreted language, it's never going to be as fast as something like C, Rust, or Go. Traditionally the ruby maintainers have not designed or optimized for pure speed, but that is changing, and the language is definitely faster these days compared to a decade ago.

If you like the ruby syntax/language but want the speed of a compiled language, it's also worth checking out Crystal[^1]. It's mostly ruby-like in syntax, style, and developer ergonomics.[^2] Although it's an entirely different language. Also a tiny community.

[1]: https://crystal-lang.org/

Crystal is a nice language that's not only simple to read and write but performs very well too. And the documentation is amazing as well.

Ruby is a super fun scripting language. I much prefer it to python when I need something with a little more "ooomph" than bash. It's just...nice...to write in. Ruby performance has come a long way in the last decade as well. There's libraries for pretty much everything.

My modern programming toolkit is basically golang + ruby + bash and I am never left wanting.

I do find Crystal (https://crystal-lang.org/) really interesting and am hoping it has its own "ruby on rails" moment that helps the language reach a tipping point in popularity. All the beauty of ruby with all of the speed of Go (and then some, it often compares favorably to languages like rust in benchmarks).