Interesting that https://github.com/uNetworking/uWebSockets.js (which is C++ with node bindings) outperforms the raw C++ uWebSockets implementation.

It's also interesting that https://github.com/websockets/ws does not appear in this study, given that in the node ecosystem it is ~3x more likely to be used (not a perfect measurement but ws has 28k github stars vs uWebSockets 8k stars)