Hacker News with Generative AI: JIT Compilers

Ruby: Proposal to Upstream ZJIT (ruby-lang.org)
For the past 3 months, the YJIT team at Shopify has been working on a next-generation Ruby JIT, which we refer to as ZJIT. This new compiler is currently being developed in a private fork, with the hope that we can eventually upstream it into ruby/ruby. Maxime Chevalier-Boisvert will give a talk at RubyKaigi 2025 to officially announce the project to the Ruby community and the broader public.
ZJIT: Building a Next Generation Ruby JIT (rubykaigi.org)
YJIT can make Ruby code run faster, but this is a balancing act, because the JIT compiler itself must consume both memory and CPU cycles to compile and optimize your code while it is running.