[Webkit-unassigned] [Bug 130050] New: Poor performance when one inline SVG references another through a "use" element

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=130050

           Summary: Poor performance when one inline SVG references
                    another through a "use" element
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
               URL: http://jsfiddle.net/roenbaeck/kbU4T/23/
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: SVG
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: lars.ronnback at gmail.com
                CC: zimmermann at kde.org


I am not sure if poor performance is strictly a bug, but the performance is very poor when an inline SVG references (animated) parts of another SVG through a "use" element. Since duplicating the animations by hand in two 'unlinked' SVG images has great performance in comparison, I cannot see why the browser could not optimise the "use" element better. Please follow the link to see an illustrated example: http://jsfiddle.net/roenbaeck/kbU4T/23/

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