benchmarks Adds uWebSockets server

This PR adds uWebSockets server.

Checklist

[ ] run npm run test and npm run benchmark
[ ] tests and/or benchmarks are included
[ ] documentation is changed or added
[ ] commit message and code follows the Developer's Certification of Origin and the Code of conduct

Apr 04 '22 14:04 streamich

Why is it fair to compare an HTTP framework with a Web Sockets framework?

Apr 04 '22 14:04 jsumners

@jsumners I guess you imply that uWebSockets library is a "Web Sockets framework". uWebSockets is a library which provides an HTTP server as well as a WebSocket server. The benchmark in this PR only tests the HTTP server part; I assume the WebSocket implementation of uWebSocket would be even faster. But that indeed would not be fair.

May 13 '22 11:05 streamich

It is a C++ server if I'm not wrong, so the comparison is tricky for the reader

May 31 '22 14:05 Eomm

@Eomm nope, it is JavaScript, you can see the route handler in this PR: https://github.com/fastify/benchmarks/blob/162467d8c8b8d28d22d97d6113bf23f672f8910f/benchmarks/uWebSockets.js

Apr 06 '23 16:04 streamich

The app var is not 😅

Apr 06 '23 16:04 Eomm

Essentially these benchmarks now are deceiving the reader, uws is about 2x faster than fastify, but the whole purpose of this repo is to promote fastify.

Apr 06 '23 17:04 streamich