[Webkit-unassigned] [Bug 106309] [Qt] High CPU load with CSS animations in Qt5's WebKit compared to Qt4.8

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=106309





--- Comment #3 from Allan Sandfeld Jensen <allan.jensen at digia.com>  2013-04-24 04:40:10 PST ---
Besides using a slow painted feature, part of the problem with this page is that the 'point' elements are not accelerated composited, which means the point and therefore the shadow is repainted completely 60 times a second (or as fast as the CPU allows). If they were composited correctly, they would be painted once and only the opacity adjusted. You can use a clasic WebKit trick for force compositing which improves performance greatly. Just add:

.point {
                -webkit-transform: translateZ(0);
}

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