The fork of Ruby that I developed this project in can be found here: https://github.com/rm155/ruby/tree/Ractor-Local-GC-version-1
Ruby 3.0 introduced Ractors, a feature that enables true concurrency in the language. By allowing different pieces of code to run at the same time, the execution time of program can be greatly reduced. However, when multiple processes work on the same data concurrently, it can lead to data race conditions, which cause the program to behave unpredictably. Because of this, Ruby heavily restricts the use of shared data between Ractors.
In my 2021 GSoC project, I helped modify existing Ruby libraries to be compliant with Ractor rules. The purpose of this was to make the functionality of those libraries usable within Ractors. After the project, I continued to work with Ractors, and I found that Ractors were not providing as much of a speedup as one might have expected. I a
