RailsConf 2022 - Scaling Rails with JRuby in 2022 by Charles Oliver Nutter - YouTube

JRuby is back in 2022 with Ruby 3.1 support and new work on performance and scaling. For over a decade, Ruby users have turned to JRuby to get access to world-class garbage collection, native JIT compilation for increased performance, and true parallel threading. Today, you can take your Rails app and reduce both latency and resource costs by hosting a single JRuby process for all your concurrent users. JRuby is the only alternative Ruby deployed at scale, powering companies all over the world in mission critical areas. Come see how JRuby can help you scale today!.