On Tue, Jan 10, 2017 at 10:06:33AM +0200, George Diamantopoulos wrote: > Hello all, > > I'm trying out qxl-dod in a new installation, and performance is so low > that the guest is practically unusable. Redrawing takes about 4-5 seconds. > I have used qxl-dod in the past on the same hardware with much better > results, although the software stack is different this time. I tried > disabling all visual effects, but apart from the expected gains (fewer > frames to redraw after each action due to the animations' being disabled) > it didn't improve usability much. > > As I have no idea how to provide useful debugging information on this, I'll > try to outline my configuration here for now. Please let me know if there's > anything I can do to provide more meaningful information: > > Host: Gentoo linux, kernel 4.9.1 > Hypervizor: Xen 4.8.0 Oh you are using Xen, you might be the first one testing qxl-wddm-dod on Xen :(( This might explain the guest gets so slow with the driver (ie bug only showing up when using Xen). Christophe
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