Performance and visiblity
Phusion Passenger 5 (codename "Raptor") is a new Ruby app server built for two goals: performance and visibility.
Phusion Passenger 5 has an innovative and optimized HTTP engine, making it up to 4x faster than Unicorn, up to 2x faster than Puma and up to 2x faster than Torquebox.
Phusion Passenger 5 gives you visibility into your app's behavior, so that you can easily analyze problems. No more pulling your hair out during production, wondering why the app is misbehaving.
Take someone else's word for it
Before releasing Phusion Passenger 5, we sent previews under the codename "Raptor" to various testers. Here's what some of them have to say.
Phusion Passenger 5 is open source. Try it out yourself, it only takes 10 minutes!