I'm one of the authors behind Phusion Passenger ( https://www.phusionpassenger.com/ ), a polyglot web server for Ruby, Python and Node.js. We've recently written a comprehensive comparison between Puma and Phusion Passenger, which you can read here: https://github.com/phusion/passenger/wiki/Puma-vs-Phusion-Pa... The comparison covers things like concurrency models, I/O models, security, clustering, multi-app support,…
You've done a great job posting Passenger links all over this thread. I find it in poor taste come into a semi-related post and repeatedly spam links to your product over and over...
Since Passenger is by now pretty much the default way to run a Ruby stack I don't think any one here doesn't know who they are and so they really do not need to spam. They are just contributing to the discussion and I appreciate that.