[vfio-users] CPU Provisioning Question.

[thibaut noah]

next intel generation is coming with a 10cores hyperthreaded processor,
that should solve your problem (or you could buy a xeon).
currently having the same issue as you, best solution seems to either
upgrade hardware or giving less core to qemu (but that could lead to less
performances)

2016-01-26 20:06 GMT+01:00 Jonathan Scruggs <j.scruggs at gmail.com>:

> Thanks for your information. I was thinking of ways to maximise the
> processor since we don't game all the time. Sometimes I would game and she
> would look at Web pages, which doesn't use much processor at all. I will
> keep them separate as you suggest just so that there will be no hiccups in
> the future.
>
> Thanks again.
>
> On 26 January 2016 at 10:17, Quentin Deldycke <quentindeldycke at gmail.com>
> wrote:
>
>> Hi,
>>
>> Sincerely, i think you will run into problem. Even more for gaming. For
>> example, you load a game, or use hardly your 12 cores.
>>
>> Be sure that your wife will start to have lags / stutter and will scream
>> at you, like old time of gaming on slow bandwith :)
>>
>> Keep cores separated for both vm. One have 2 cores, the other one 2. and
>> 1 for the host.
>> Think that, for best performance, it is better that the host doesn't
>> schedule at all the cpu linked to the guest!
>>
>>
>> --
>> Deldycke Quentin
>>
>>
>> On 26 January 2016 at 11:09, Jonathan Scruggs <j.scruggs at gmail.com>
>> wrote:
>>
>>> Hi all,
>>>
>>> I have a 6 core Haswell Processor with Hyper threading. What if I passed
>>> in all 6 cores with the hyper thread cores to the guest. When I am doing
>>> stuff on the guest I am not running anything on the host. Would I need to
>>> reverse pin the cores, so Core 0 on the host would be core 15 on the guest,
>>> so in theory Core 0 would have more host processes on it?
>>>
>>> My thinking is that the CPU scheduler on the host would allocate the
>>> threads in an efficient manner.
>>>
>>> However, I want to add a second windows guest for my wife and both
>>> windows used at the same time for gaming, not the latest games. Would both
>>> guests with all 12 cores passed through be provisioned right be the
>>> scheduler of the host? Or would I run into serious trouble?
>>>
>>> Thanks,
>>> Jon
>>>
>>> _______________________________________________
>>> vfio-users mailing list
>>> vfio-users at redhat.com
>>> https://www.redhat.com/mailman/listinfo/vfio-users
>>>
>>>
>>
>
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