Stoyan (@stoyanstefanov) is a Facebook engineer, former Yahoo!, writer ("JavaScript Patterns", "React: Up and Running"), speaker (JSConf, Velocity, Fronteers), toolmaker (Smush.it, YSlow 2.0) and a guitar hero wannabe. Let’s talk a bit about keeping tabs on how much CPU is consumed by an application’s JavaScript. And let’s frame the discussion around components – the atomic building blocks of the
