I have passed the ignore msrs parameter but there is no change. I will check with dmesg though. This happens in any game: WoW, SC2, HotS, D3 ...I do not have anything besides Blizzard games to test this with, but I am pretty sure is not game related. On May 18, 2016 4:42 PM, "Quentin Deldycke" <quentindeldy...@gmail.com> wrote:
> Easy to see, dmesg and you should have plently of flood about it :) > > -- > Deldycke Quentin > > > On 18 May 2016 at 16:39, thibaut noah <thibaut.n...@gmail.com> wrote: > >> I'm thinking same thing as heroes of the storm, msrs spamming ? >> >> 2016-05-18 14:27 GMT+02:00 Andrei Grigore <andrei....@gmail.com>: >> >>> Dear all, >>> >>> I have this very strange issue that I can not understand: >>> >>> Everything works flawlessly or even better than bare metal. ...thing is, >>> if I enable stereoscopic 3d vision (nvidia) in game, the performance drops >>> to unplayable. The reason for that are CPU /RAM intensive elements such as >>> view distances. Dropping other graphical elements to the lowest possible >>> value makes no difference. This means that the GPU is not the bottleneck. >>> Tested this on bare metal and i get around 50 fps with everything maxed >>> out. With VGA passthrough I barely get 20. Disabling 3d vision boosts >>> everything to 60 fps. >>> >>> The entire 3d vision sensor usb bus is passed through as well. I am >>> running just this VM with 8/8 cores of a fx-8230 cpu with 12 gb of ram. The >>> cpu is passed with host-passthrough. I am even using your latest patch and >>> had enabled hyperv extensions with nvidia GPUs. >>> >>> The VM is installed clean with nothing but the games in it. As said >>> using the same drivers on a bare metal windows works flawlessly. >>> >>> I cannot understand where the bottleneck is. CPU usage is not even close >>> to 100%, plenty of ram left and not even 1MB of swap is made. >>> >>> I don't even know where to seek the problem. What can cause such a >>> massive fps drop? Is there any bandtwidth limit that caps the 2x rendering >>> needed for 3d vision? >>> >>> Many thanks, >>> Andrei. >>> >>> _______________________________________________ >>> vfio-users mailing list >>> vfio-users@redhat.com >>> https://www.redhat.com/mailman/listinfo/vfio-users >>> >>> >> >> _______________________________________________ >> vfio-users mailing list >> vfio-users@redhat.com >> https://www.redhat.com/mailman/listinfo/vfio-users >> >> >
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