Finding a Needle in the Haystack - Debugging Performance Issues

Explore effective strategies for debugging critical performance issues in Ruby applications through this insightful conference talk from RubyConf 2023. Learn about various profiling tools that provide visibility into code execution, helping developers pinpoint and resolve performance bottlenecks. Discover how these profilers can offer valuable direction for further debugging, even when they don't immediately reveal the exact root cause. Gain practical insights from a real-world case study involving the Ruby version upgrade of a large monolithic Rails application, demonstrating how to tackle complex performance challenges in production environments.