Just this morning I was benchmarking the example HTTP server I wrote using IOU [0]. The usual caveats notwithstanding, I would say 100K sustained requests per second serving 1024 concurrent connections (on a more-or-less average laptop) is anything but slow...

In fact, the whole idea for this library is to provide a low-level, fast, flexible, asynchronous I/O layer for building Ruby apps and letting Ruby+YJIT optimize the app code, which it actually is getting pretty good at.

If you're open to learning more about where the Ruby runtime is performance-wise, there was a very interesting recent talk [1] about this very subject.

[0] https://github.com/digital-fabric/iou/blob/main/examples/htt... [1] https://www.youtube.com/watch?v=qf5V02QNMnA