But I thought a lot of the advantage of async is it's ability to handle many concurrent requests? What happens if you run the same tests but this time with 100 requests in parallel?

[–] solrize@lemmy.ml 2 points 1 month ago (2 children)

I've run python progs with 1000+ threads and it's fine. 10k might be harder. Async is overrated. Erlang and elixir are preferable.

[–] logging_strict@programming.dev 1 points 1 month ago

overrated or not the choice is between sync or async drivers. Actually there is no choice, just an illusion of choice.

So async or async ... choose. Without the web router running multithreaded, concurrency will have minimal effect. But everything is step by step. freethreaded hasn't been out for very long.

[–] hackeryarn@lemmy.world 0 points 1 month ago* (last edited 1 month ago)

Only reliable web server is an Erlang web server.

[–] hackeryarn@lemmy.world 1 points 1 month ago (1 children)

This is running with concurrent requests. 64 workers firing request to be exact.

[–] rimu@piefed.social 1 points 1 month ago

That sounds like plenty. Cool!

[–] Ephera@lemmy.ml 1 points 1 month ago (1 children)

I mean, it's a bit of a weird comparison to begin with. Web servers were always able to parallelize without async, because they'd just spawn a new thread per request. The real advantage of async is programs where working with threads isn't as trivial...

[–] hackeryarn@lemmy.world 2 points 1 month ago

I totally agree with you. This article was really a response to a lot of hype around async web servers in Python.

I kind of knew what to expect, but wanted to throw real numbers against it. I was surprised to see a 10x slowdown with the async switch in Django.