Here is an example of a real-world performance bottleneck that was discovered by the closure team: http://pupius.co.uk/blog/2007/03/garbage-collection-in-ie6/

Here is an example of a real-world performance bottleneck that was discovered by the closure team: http://pupius.co.uk/blog/2007/03/garbage-collection-in-ie6/ http://pupius.co.uk/blog/2007/03/garbage-collection-in-ie6/