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How Ruby Executes JIT Code: The Hidden Mechanics Behind the Magic | Rails at Scale
https://railsatscale.com/2025-09-08-how-ruby-executes-jit-code-the-hidden-mechanics-behind-the-magic/
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Where does JIT-compiled code live? How does Ruby switch between bytecode and native execution? Why does TracePoint slow everything down? This post answers the JIT questions most Ruby developers have but rarely see explained.
