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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