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LABjs messing up waterfall charts?
03-08-2011, 11:11 PM
Post: #16
RE: LABjs messing up waterfall charts?
I don't know if I'd go as far as to say "fixed": http://www.webpagetest.org/result/110308...1/details/

   

Improved certainly, but not fixed. I'm pretty sure the problem is that something in IE is synchronizing to the main thread so you get a lot of these artificially extended network events. Catchpoint noticed it with other main-thread activities recently: http://blog.catchpoint.com/2011/03/02/newblindspot/ and it's something I've seen with javascript before as well. It MIGHT be possible for me to record the actual DNS and connect times and show gaps after them in the waterfall before the requests in these cases - need to look into it a bit more.

Certainly looks like some low-hanging fruit for the IE team to improve the browser performance though. I should have some experimental chrome support within the next week or so and it will be interesting to see how it compares.
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Messages In This Thread
LABjs messing up waterfall charts? - sajal - 03-01-2011, 01:08 AM
RE: LABjs messing up waterfall charts? - pmeenan - 03-08-2011 11:11 PM

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