Try Out YJIT for Faster Rubying - Shopify
Oct 15, 2021

Summary
This post details how to build and install YJIT-enabled CRuby from source, including prerequisite package installation for macOS and Linux. It explains how to verify YJIT installation and enable it via environment variables or command-line flags. The post also provides guidance on running YJIT with existing codebases and benchmarks, discusses its current production readiness based on early results and canary deployments, and outlines how to report crashes and provide feedback. It also introduces runtime statistics and debugging options for YJIT.