Ruby Concurrency Final Report

Ruby provides a mixed bag of tools for building asynchronous systems. While CRuby wraps all Ruby code in a Global Virtual Machine Lock (GVL), JRuby and TruffleRuby provide truly parallel threads. Code analysis reveals that thread synchronisation primitives are often used incorrectly, and while results may be okay on CRuby, running the same code on JRuby or TruffleRuby can expose race conditions wi

[umai_bow]

“Existing work shows that event loops can be used to build scalable systems, however existing implementations must wrap around or replace Ruby constructs. We investigated how to use Fibers to expose non-blocking operations directly within CRuby. In order to work within existing event loops, we imp