[Webkit-unassigned] [Bug 26406] New: Would like Inspector to show what JS caused relayouts/repaints

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=26406

           Summary: Would like Inspector to show what JS caused
                    relayouts/repaints
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: All
            Status: NEW
          Keywords: NeedsRadar
          Severity: Enhancement
          Priority: P2
         Component: Web Inspector
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: aroben at apple.com
                CC: hyatt at apple.com, timothy at hatcher.name


We've seen examples of a site calling element.clientWidth (or similar) inside a
loop, making that site slow due to the relayout that each clientWidth call
requires. It would be great for the Inspector to indicate what JS caused a
relayout (or repaint) so that web developers could find and fix these problems.


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