In addition, the blog post measures the cost of avoiding doing the interop, which allows wins as the compiler improves in the case of short-lived calls implemented in a native component.

This, however, is not exclusive to Ruby and statically typed JIT or AOT compiled languages benefit from this to a much higher extent.

https://benchmarksgame-team.pages.debian.net/benchmarksgame/...

I remember when these claims were made for Java twenty years ago. It’s still slower than C, most of the time.

Some things don’t change.