Ruby 2.6 and Ahead-Of-Time Compilation — Engineering BlogRuby 2.6 preview 1 has optional JIT that you can turn on with a command-line switch. It also has a mode where you can tell it to wait for JIT before running your code, which is marked as a "test" option. But can you just turn it on and get Ruby AoT for our Rails Apps? Let's check! I maintain Rails Ruby Bench, so that's what I'll be playing with here, but the JIT and AOT advice should apply to most
