[vfio-users] Nvidia glitches on Windows 10 guest

[Berillions]

When i said in my message "real 8Gb Memory Ram", it means that I have 2
slots each one which contain 4Gb Memory Ram.
"real 12Gb Memory Ram", it means that I have 3 slots each one which contain
4Gb Memory Ram.

And yes, i created Hugepages for the VM with the Debian Wiki (
https://wiki.debian.org/Hugepages).
For 2048Mb allocate to the VM, i set "vm.nr_hugepages" to 4096.

But i can't set 8192 to "vm.nr_hugepages" and set 4096MB for the Guest, I
have not enough memory for the Host (I can use the host but if i launch
Virt-Manager + VM, 99% of Memory Ram is used so the host freeze)

2016-06-21 19:37 GMT+02:00 Brett Peckinpaugh <bp10 at erylflynn.com>:

> Are you using huge pages?
>
> On June 21, 2016 10:31:22 AM PDT, Berillions <berillions at gmail.com> wrote:
>>
>> Hi guys,
>>
>> I found where come from the issue. I have really in my PC 12Gb Memory RAM
>> (but the issue exist with real 8Gb Memory Ram).
>>
>> If i give 4Gb or more to the VM, i have the glitches, corruption and
>> freeze. But, if i give only 2Gb for the guest the issue does not exist and
>> i can use Win10 correctly and play at games without problem.
>>
>> Any ideas to find a solution to allocate more Memory Ram without to have
>> this issue ? (Because i would like to replace my 12GB (3x4Gb) by a 1x16Gb)
>>
>> Thanks by advance,
>> Maxime
>>
>> 2016-06-16 12:52 GMT+02:00 thibaut noah <thibaut.noah at gmail.com>:
>>
>>> Quick question, are you posting a new email everytime? Because i got
>>> like 2 or 3 of those on the same request, very annoying.
>>> Never heard about this kind of issue though, virtual net device load
>>> should be insignificant.
>>>
>>> 2016-06-16 12:17 GMT+02:00 Quentin Deldycke <quentindeldycke at gmail.com>:
>>>
>>>> Possibly because managing a virtual device is expensive in cpu time?
>>>> Possibly because these cpus who are managing these interrupts or shared
>>>> with the vm?
>>>> Possibly because your dpc is bad when having a network interface?
>>>>
>>>> Much possibilities, no information, much things already answered in
>>>> this mailing list.
>>>>
>>>> First of all:
>>>>  - dmesg
>>>>  - dps latency on the guest
>>>>  - xml file
>>>>  - cpu command line
>>>>  - core isolation or equivalent
>>>>
>>>>
>>>> Note that these catch lines are not the thing people like to read: "Nobody
>>>> to help me how to resolv this issue ? "
>>>>
>>>> --
>>>> Deldycke Quentin
>>>>
>>>>
>>>> On 16 June 2016 at 11:46, Berillions <berillions at gmail.com> wrote:
>>>>
>>>>> Nobody to help me how to resolv this issue ?
>>>>> Or where i must to search to give your more informations.
>>>>>
>>>>> I have my linux system on a ssd and the qemu image file on a HDD.
>>>>>
>>>>> I don't understand why Network driver reduce and finally freeze the
>>>>> system. Uninstall it and the Win10 works great.
>>>>>
>>>>>  I need your help guys.
>>>>>
>>>>> _______________________________________________
>>>>> vfio-users mailing list
>>>>> vfio-users at redhat.com
>>>>> https://www.redhat.com/mailman/listinfo/vfio-users
>>>>>
>>>>>
>>>>
>>>> _______________________________________________
>>>> vfio-users mailing list
>>>> vfio-users at redhat.com
>>>> https://www.redhat.com/mailman/listinfo/vfio-users
>>>>
>>>>
>>>
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