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by nickjj 1246 days ago
It was supported immediately for Alpine based images because rustc 1.60+ was available in that distro.

Initially when 3.2 was released Debian based images didn't support it because Bullseye ships with a version of rustc that's too old to compile YJIT.

But https://github.com/docker-library/ruby/commit/6db728e addressed this a few days ago by installing a pre-compiled version of rustc straight from Rust and YJIT is available in Debian now.

You can confirm if it's available to use by running:

    $ docker container run --rm ruby:3.2.0-slim-bullseye ruby --enable-yjit -v
    ruby 3.2.0 (2022-12-25 revision a528908271) +YJIT [x86_64-linux]
If it weren't available then you would get an unknown argument error.
1 comments

    $ docker container run --rm ruby:3.2.0-slim-bullseye ruby --enable-yjit -v
    ruby 3.2.0 (2022-12-25 revision a528908271) +YJIT [aarch64-linux]
Runs on Arm as well!