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.

Learn why Phusion Passenger 5 is so fast »

Learn about its features »