[Webkit-unassigned] [Bug 162093] New: Background:fixed makes scrolling stutter

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=162093

            Bug ID: 162093
           Summary: Background:fixed makes scrolling stutter
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Macintosh
                OS: OS X 10.11
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: goldorakhong at gmail.com

On some pages, a fixed background image makes the scrolling stutter like crazy on my machine (a Mac Mini Late 2012 i7 / 2560x1440 screen).
The effect is pretty obvious on this page :
http://www.gamekult.com/forum/topic-le-sac-a-dos-vr-ou-la-blague-qui-ne-sest-pas-arretee-a-temps-919427n.html

Firefox doesn't have this problem on the same machine.

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