[vfio-users] Win10 Guest, stability is horrible and freeze quickly

[LOMBARD Maxime]

There is an other thing that i don't understand. 

Like i said, if i set 2gb or <, the VM Word perfectly without problems.

I can set more memory ram only when i disable the internet function in virt-manager...




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> Le 8 oct. 2016 à 15:16, Berillions <berillions at gmail.com> a écrit :
> 
> I don't understand what could eats the RAM of the host because i have 32GB Memory RAM. I have 16GB for the Host and 16GB (with Hugepages) for the Guest. My Windows_10.img is in an Ext2 partition.
> 
> I try actually to use the IGD (Intel graphic card) to the Host and the GTX970 to the Guest and i have no problems. How is it possible to have conflict between both Nvidia card.
> I have only two solutions :
> 
> 1- Use both Nvidia cards but only 2GB Memory RAM in virt-manager and i don't know if with 10GB of Memory swap in Win10 is enough to play at AAA games
> 
> 2- Use IGD for Linux and the Nvidia for the Host. 
> 
> 2016-10-08 14:36 GMT+02:00 Bronek Kozicki <brok at spamcop.net>:
>> Perhaps you have something eating into RAM of the host. I had my host freezing when I forgot to limit memory utilization in the ZFS. It does not matter what eats into your host RAM - since qemu is just a regular userspace process, it's memory needs (ie those of the guest system) are not "prioritized" as more essential than any other userspace process. If your host does not have enough memory, then the more you allocate in qemu (or libvirt) to the guest system, the more probability that qemu will run out of RAM, effectively freezing the guest OS. At least, this is what it would appear to be (it might be simply swapping, but that slows down guest execution speed by orders of magnitude, so it is effectively frozen)
>> 
>> 
>> B.
>> 
>> From: Berillions
>> Sent: Friday, 7 October 2016 20:00
>> To: Jayme Howard
>> Cc: martin at schrodt.org; vfio-users
>> Subject: Re: [vfio-users] Win10 Guest,	stability is horrible and freeze quickly
>> 
>> Very very very things. If i set more than 2GB Memory Ram in Virt-Manager for the Guest, i have artefacts and freeze. If I set 2GB like actually, the guest works perfectly.
>> 
>> So i don't know if it will be good for gaming even if i set Windows swap to 10GB ...
>> 
>> 2016-10-07 19:43 GMT+02:00 Jayme Howard <g.prime at gmail.com>:
>>> Put the 960 into the one that goes 4x if you're that worried about it, but it shouldn't be a huge deal.  I don't know if the 960 can even saturate a 4x.  It might be able to, but since it's a lower performance card anyway, it shouldn't really matter.
>>> 
>>>> On Fri, Oct 7, 2016 at 12:36 PM, Berillions <berillions at gmail.com> wrote:
>>>> I have two PCI-E 3.0 16x slot,
>>>> 
>>>> The first with the 960 and the second for the 970. if the second slot is used, his bandwidth will not be 16x but 4x.
>>>> The others slots are only PCI-E 3.0 1x ...
>>>> 
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>>>> 
>>> 
>> 
>> 
> 
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