"Exclusive" times don't include the times taken to mount the components: processing props, getInitialState, call componentWillMount and componentDidMount, etc.
Prints the overall time taken.
Prints the underlying DOM manipulations, e.g.
Prints the underlying DOM manipulations, e.g. "set innerHTML" and "remove".
The most useful part of the profiler.
The most useful part of the profiler.
"Wasted" time is spent on components that didn't actually render anything, e.g. the render stayed the same, so the DOM wasn't touched.
(Since version 0.11.0) Renamed to printOperations() in React v15.
React Performance Tools
https://facebook.github.io/react/docs/perf.html