ZJIT: A Next-Gen Ruby JIT for Improved Code Reuse

YJIT speeds up Ruby code, but its repeated compilation of the same code in large-scale production environments is inefficient. To address this, companies like GitHub, Shopify, and Stripe have designed ZJIT, a next-generation Ruby JIT compiler aiming to save and reuse compiled code between executions. This aims to eliminate redundant work and allow the compiler to focus on optimization for better performance.