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[Bug 1293384] Re: Compiz CPU usage dramatically increased in Ubuntu 14.04


OK, So I've finally been able to do a bit of testing with Ubuntu 14.04

If run without 3d support on llvmpipe, it's very CPU-hungry. A bit more
so than Ubuntu 13.04 AFAICT. For Ubuntu on VMware this becomes
troublesome primarily on ESX, but the problems were introduced with the
drop of Unity 2D. I haven't dug thoroughly into why it hurts so much on
ESX. Could it perhaps be that Unity / Compiz is performing full-screen
flips when only a part of the screen is updated?

Also we have severe performance problems when running fully 3D
accelerated with workstation / fusion on multi-monitor setups. That's
partly due to how the VMware device updates screens but Ubunut 14.04
stands out as particularly slow here. Also needs further


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  Compiz CPU usage dramatically increased in Ubuntu 14.04

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