Ruby Issue Tracking System

04/10/2026

06:15 PM Ruby Feature #21695: Optimizing Ruby performance with Ruby itself instead of Rust

ufuk (Ufuk Kayserilioglu) wrote in #note-8:
How do get from compile time code generation to runtime compilation?
I am using these hacks I mentioned and many other related hacks to make a JIT compiler. My point is that using Ruby to ... fredlinhares (Frederico Linhares)

04/09/2026

06:21 PM Ruby Feature #21695: Optimizing Ruby performance with Ruby itself instead of Rust

Let me try to elaborate as much as I can.
Rust is not as fast as C; it is as fast as the equivalent C. However, C allows us to use some valid memory management techniques that are impossible in Rust unless you use considerable amount... fredlinhares (Frederico Linhares)

04/08/2026

05:42 PM Ruby Feature #21695: Optimizing Ruby performance with Ruby itself instead of Rust

Sorry for the delay. I was busy until very recently, but I will be more active from now on. Here is the repository: https://gitlab.com/fredlinhares/pre_c fredlinhares (Frederico Linhares)

11/20/2025

01:07 AM Ruby Feature #21695: Optimizing Ruby performance with Ruby itself instead of Rust

Currently, my goal is to rewrite the C++ code I have into C. To achieve this, I am creating a set of macros in Ruby on top of C that run at compile time, and the output of these macros is C code. Here is an example of what I am doing, ... fredlinhares (Frederico Linhares)

11/17/2025

08:01 PM Ruby Feature #21695 (Open): Optimizing Ruby performance with Ruby itself instead of Rust

I am using ERB on top of C for a game I am making now. We can use the tool to improve the productivity, memory safety, and runtime speed for Ruby. It can also replace a Rust JIT compiler for better results. The only problem is that it... fredlinhares (Frederico Linhares)