What causes large white space in the timeline?
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10-31-2013, 01:36 AM
Post: #1
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What causes large white space in the timeline?
Hi Pat,
I've ran a few tests recently and I'm seeing unexpected dead time, white space, in the timeline. Any ideas what may cause this? This result Amsterdam Chrome shows it: http://www.webpagetest.org/result/131030...1/details/ While this one, Paris Chrome doesn't: http://www.webpagetest.org/result/131030...1/details/ Sometimes it can be rather extreme like this London IE8: http://www.webpagetest.org/result/131030...4/details/ Regards Mike |
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10-31-2013, 04:11 AM
Post: #2
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RE: What causes large white space in the timeline?
Hmm, usually it's script running or something else eating CPU but the Amsterdam CPU utilization wasn't an issue (looked to be a problem with London). The best bet is usually to capture a dev tools timeline which will tell you what Chrome is doing (option in the Chrome tab of advanced settings).
I re-ran amsterdam and it looks like Chrome is doing "Layout" but it doesn't really break it down more than that: http://www.webpagetest.org/timeline/28/t...173M&run=1 |
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11-02-2013, 02:17 AM
Post: #3
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RE: What causes large white space in the timeline?
Thanks Pat
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