Comment by xorcist

The mystery is why uWSGI isn't more widely used. Perhaps the name does not help. It has little to do with WSGI just as FastCGI is unrelated to CGI.

It is a tiny binary protocol, with frames just as FastCGI. The reference server works with several languages, I've used it over the years mostly with Python but also Ruby and Perl. It is a small C executable with all the practical features one need for web hosting: Draining backends, autoscaling, logging, chrooted backends, everything.

Very few FastCGI servers are this mature. Unlike FastCGI, it has been extended to support websockets and async.

I have used it in production at several places for many years and have nothing but praise for it. It feels like this weird unknown secret for web operations. Unfortunately, it sees lesser use now in the cloud era, and development seems to have all but stopped. It still works and is still reliable but the writing is probably on the wall. However nothing comes close in terms of speed, simplicity, and features.