Noah is a Ruby Fellow for AppFolio, working on Ruby performance and related tooling. He wrote the book "Rebuilding Rails" about understanding Rails as just Ruby metaprogramming.
Faster Apps, No Memory Thrash: Get Your Memory Config Right
The Ruby memory system can be tricky. Configuring it isn't easy. I'll show you a new simple tool to optimize your Ruby binary's memory settings. You'll learn about the CRuby memory resources and how you check them. Let's optimize your memory usage to keep memory small and keep garbage collection fast.