[vfio-users] Significant FPS drop with AMD and GTX970

[Andrei Grigore]

Pretty sure, yes. Under: /etc/modprobe.d , then rebuilt the initramfs with
mkinitcpio -p linux and rebooted.

On Oct 8, 2016 15:44, "Rokas Kupstys" <rokups at zoho.com> wrote:

> Sure you put config in the right place? Because depending on how kernel
> modules are compiled config go to different places.
>
>
>
> Sent from my Samsung device
>
>
> -------- Original message --------
> From: Andrei Grigore <andrei.grg at gmail.com>
> Date: 10/8/16 16:14 (GMT+02:00)
> To: Rokas Kupstys <rokups at zoho.com>
> Cc: vfio-users <vfio-users at redhat.com>, Jayme Howard <g.prime at gmail.com>
> Subject: Re: [vfio-users] Significant FPS drop with AMD and GTX970
>
> Just tried. No improvement.
>
> On Oct 8, 2016 14:43, "Rokas Kupstys" <rokups at zoho.com> wrote:
>
>> See https://bbs.archlinux.org/viewtopic.php?id=162768 first post. See if
>> you need ignore_msrs or allow_unsafe_interrupts. I had similar issue with
>> and board and some module options fixed it I think.
>>
>>
>> Sent from my Samsung device
>>
>>
>> -------- Original message --------
>> From: Andrei Grigore <andrei.grg at gmail.com>
>> Date: 10/8/16 10:49 (GMT+02:00)
>> To: Jayme Howard <g.prime at gmail.com>
>> Cc: vfio-users <vfio-users at redhat.com>
>> Subject: Re: [vfio-users] Significant FPS drop with AMD and GTX970
>>
>> Unfortunately, that didn't help. Thanks for the sugestion though!
>>
>> On Oct 8, 2016 03:06, "Jayme Howard" <g.prime at gmail.com> wrote:
>>
>>> Check to see if you have MSI enabled.  That'd be my bet.  Alex had a
>>> blog post that covered it, but I don't have the link handy.
>>>
>>> On Fri, Oct 7, 2016 at 6:39 PM, Andrei Grigore <andrei.grg at gmail.com>
>>> wrote:
>>>
>>>> Hi all,
>>>>
>>>> I was wondering if anyone is experiencing this and if there is a known
>>>> fix for it.
>>>>
>>>> I am using ArchLinux with latest stable Kernel, qemu and libvirt.
>>>>
>>>> My CPU is FX-8230 with a GTX 970. I've passed thorugh the GPU to a
>>>> Win10 guest.
>>>>
>>>> In WoW on bare metal i get 90 fps and in the same area with the same
>>>> graphic settings on the VM i get around 50. There seems to be no cpu and or
>>>> ram bottlenet and the GPU seems to be quite gully used since the fans are
>>>> starting to spin quite soon.
>>>>
>>>> Can anyone help here with a suggestion? I saw reports with about 3%
>>>> performance drop, but I am experiencing a lot more.
>>>>
>>>> Thanks!
>>>> Andrei.
>>>>
>>>> _______________________________________________
>>>> vfio-users mailing list
>>>> vfio-users at redhat.com
>>>> https://www.redhat.com/mailman/listinfo/vfio-users
>>>>
>>>>
>>>
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