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A comment on Ampere switching to in-house CPU designs. Parent comment

Re:Ampere switching to in-house CPU designs by freedomben on Thursday May 20, 2021 @11:53AM (#27222794)
Ruby and Python both have significant parts of their implementation and libraries in C, so it's still a significant problem there.

Java less so, but the behavior and performance characteristics are definitely different.

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Re:Ampere switching to in-house CPU designs by tachyonbeam on Thursday May 20, 2021 @01:31PM (#27224242)
Definitely. A huge chunk of Python and Ruby packages are written as "C extensions", and if those C extensions are going to get compiled on some platform the developers haven't tested them on, it will make for fun surprise bugs.

I know Java has C extensions for some things too. I'm curious how much code is actually "pure Java", but I've actually rarely seen Java used at any of the places I worked at.

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