Jean Boussier

Jean Boussier, Senior Staff Engineer at Shopify and a key member of the Rails Core team, dives into the intricacies of Rails performance. He explains the distinction between IO-bound and CPU-bound issues and sheds light on Ruby’s Global VM Lock and its concurrency implications. Jean emphasizes the importance of understanding gem dependencies rather than treating them as magic. He shares insightful perspectives on background jobs and performance optimization, advocating for deeper engagement with Rails to enhance development productivity.