Max BMay 27

New linear scan register allocator in ZJIT by @tenderlove !

https://railsatscale.com/2026-05-27-a-new-register-allocator-for-zjit/

A new Register Allocator for ZJIT

We recently landed a new register allocator in ZJIT. Learn about lifetimes, interference graphs, and linear scan — and why a global allocator unlocks features like method inlining.

Rails at Scale
Show threadFedor Indutny
@tekknolagi @tenderlove long live linear scan! Great job!
May 27 at 5:53pmWeb