Bug 193433

Summary: Avoid redundant repaints during style change
Product: WebKit Reporter: Simon Fraser (smfr) <simon.fraser>
Component: Layout and RenderingAssignee: Simon Fraser (smfr) <simon.fraser>
Status: NEW    
Severity: Normal CC: bfulgham, simon.fraser, zalan
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch none

Simon Fraser (smfr)
Reported 2019-01-14 21:16:14 PST
Avoid redundant repaints during style change
Attachments
Patch (28.11 KB, patch)
2019-01-14 21:16 PST, Simon Fraser (smfr) 		no flags
DetailsFormatted DiffDiff
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Simon Fraser (smfr)
Comment 1 2019-01-14 21:16:39 PST
Created attachment 359131 [details] Patch
Simon Fraser (smfr)
Comment 2 2019-01-14 21:17:18 PST
Parking this patch here. In one Speedometer2 run we get: RenderElement::setStyle - redundant repaint: 6365 calls, mean duration: 0.000504ms so that's about 3ms on the entire run. Not much.
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