[vfio-users] CPU Question

[Alex Williamson]

On Thu, 2015-09-03 at 21:11 +0200, Daniel wrote:
> I'm planning to use a i7 6700k (4x 4 Ghz, supports Vt-d) which has 
> hyperthreading. How many cores and how many threads would you assign to 
> the VM?

<8 vCPUs total

>  Is it possible to let the host use 4 threads (each connected to 
> a different physical core) and to let the VM use 4 threads (each 
> connected to a different physical core)?

Yes

>  So that the VM has access to 
> all 4 physical cores of the CPU to get highest gaming perfomance. I 
> searched around but I didn't find a clear answer.

That's all fine and good, but as I keep advising, Xeon E5 is the only
known reliable way to avoid isolation issues that may require you to
forever patch your kernel with the ACS override path.  Keep this in mind
as you trail blaze a new platform that has no user reports yet regarding
device isolation and thus IOMMU grouping.  Thanks,

Alex