The performance improvements in Ruby 3.3 with YJIT

Ruby 3.1.2 vs 3.3.5+YJIT in production In the previous article I discussed about my upgrade process from Ruby 3.1 to ruby 3.3, discovered a potential regression in a specific scenario, and ended up with synthetic benchmark results looking pretty great: Basically much higher performance thanks to YJIT, with an even lower memory usage then before, it's looking good + good. After running it in…