fib VS clojerl

I've typically found rust to be about 100x faster than Python for the projects I've ported. This is consistent with https://github.com/drujensen/fib.

Here is a similar benchmark but includes compile times. https://github.com/drujensen/fib

How? Do you mean how do I know it's slow? Because it takes longer to run.

Write a typical computation such as Fibonacci in Java and Erlang/Elixir and compare. Fortunately someone has already done this.

Elixir is 3x slower than C and 2x slower than Java for this single thread example.

https://github.com/drujensen/fib

Apparently this upsets people for me to point this out. However, I did not say that Elixir was slow in general or a bad choice. It's an excellent choice for problems which suit parallelization or which require reliable, consistent performance.

Since the parent poster had commented that adding this multi-module dispatch would not be performant, I merely pointed out that the single thread peformance was already slow (as in, why worry too much about the performance cost of the multi dispatch suggestion).

Is there some advantage over repos that also show the results ?

Basically, you take a programming language and make it work on a platform that meant to be programmed using a different PL. Clojure is hosted by design - it's not Java, but can be used to program for JVM. It ain't Javascript, but can be used to target nodejs and browser; not an [official] CLR language, but you can write .Net programs. You can use Clojure to make Flutter apps with ClojureDart. You can integrate Python into Clojure with libpython-clj. Or write Clojure to target Erlang/OTP; or Rust; or R; There's even a clojure-like language for Lua - Fennel.

There's something about Clojure people like so much, they want it to work atop any platform.

https://github.com/Tensegritics/ClojureDart

https://github.com/clj-python/libpython-clj

https://github.com/clojerl/clojerl

https://github.com/clojure-rs/ClojureRS

https://github.com/scicloj/clojisr

https://fennel-lang.org

But there are also unofficial implementations—i.e. not JVM, JS, .NET—of Clojure for other host environments, e.g. Clojerl. And of course nearly everything /u/borkdude touches interops with something in some way.

Tail call optimization/elimination isn't a property of functional languages - there are tons of non-functional languages with it, like Lua or even C, when compiled with -O3, to name a few. Besides, Clojure is a hosted language, so it shares the platform characteristics, and recur is a language-way of providing a construct for tail call looping. Clojure on BEAM for example, supports tail call elimination, because BEAM does. And Beam is a quite functional environment ;)

Clojerl: an implementation for the Erlang VM. The reader conditional is :clje.

There's also an unofficial BEAM VM implementation