glommio

My understanding is you always need a runtime to play the async game -- something needs to drive the async flow. But there are others on the market, just not without the.. market domination... of tokio. https://github.com/smol-rs/smol looks promising simply for being minimal https://github.com/bytedance/monoio looks potentially easier to work with than tokio https://github.com/DataDog/glommio is built around linux io_uring and seems somewhat promising for performance reasons. I haven't played with any of these yet, because Tokio is unfortunately the path of least resistance. And a bit viral in how it's infected things. But I'm planning on giving glommio at least a whirl.

I think you missed one which is based on io_uring [1]. In my benchmarks with a slightly tweaked version it was 2x faster than Nginx and and 30x faster than Python's SimpleHttpServer. [1] https://github.com/DataDog/glommio/blob/master/examples/hype...

You might be interested in these. tl;dr People are literally reimplementing tokio (differently) just to avoid this cost. https://www.youtube.com/watch?v=PbgTyCSDPrs https://itnext.io/modern-storage-is-plenty-fast-it-is-the-ap... https://news.ycombinator.com/item?id=25220892 https://github.com/DataDog/glommio https://www.datadoghq.com/blog/engineering/introducing-glomm...

> Few of us have really figured out io_uring. But that doesn't mean it is slower. seastar.io is a high level framework that I believe has "figured out" io_uring, with additional caveats the framework imposes (which is honestly freeing). Additionally the rust equivalent: https://github.com/DataDog/glommio