Ruby Outperforms C: Breaking the Catch-22

[stanislavb]

https://railsatscale.com/2023-08-29-ruby-outperforms-c/

[b20000]

you can’t outperform software written in C

[pelasaco]

Do we need rust compiler in production to run yjit?

[steveklabnik → pelasaco]

You need a rust compiler to compile Ruby with yjit enabled, but once that Ruby is built, I wouldn’t expect you to need it anymore.

[pelasaco → steveklabnik]

isn't it used to compile the jitted code?

[steveklabnik → pelasaco]

Nope, that’s what yjit does. It produces machine code from Ruby, it does not transpile Ruby to Rust and then invoke rustc, I can assure you that would be far too slow.