performance - Extra render time in Chrome Dev Tools Timeline Frames -


there plenty of videos , tutorials out there geared towards reducing compositing, layout, , paint times frame using dev tools, i'm not clear of once times below allotted time, frame still takes far long render.

any tips on determining happening in frame causes render slowly?

chrome devtools timeline

paul irish , paul lewis touch topic briefly here. according video, white bar indicates browser waiting cpu or gpu , there nothing developer can fix (assuming working on 'standard' website no canvas/webgl). however, imo both pauls don't sound convincing when talking this. guess, it's hard explain briefly (and maybe 8 sips of beer i've counted beginning of video blame :) ).


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