Sounds gets better after 2:40 Automatic garbage collection in JavaScript isn't a substitute for effective memory management, especially in large, long-running web apps. Memory leaks, frequent garbage collection pauses, and overall memory bloat can really drag you down. Come take a trip down memory lane with us and learn how we tackled these performance issues in Gmail. We'll share best practices for memory management and demonstrate how to use the Chrome DevTools Heap Profiler like a wizard to optimize your site. Source: http://2013.jsconf.eu/speakers/loreena-lee-and-john-mccutchan-effectively-managing-memory-at-gmail-scale.html License: For reuse of this video under a more permissive license please get in touch with us. The speakers retain the copyright for their performances.