[vfio-users] Optimize vm and host performance, is dual xeon the way ?

[thibaut noah]

My cpu is a i7 4790k, is pinning the cpu usefull ? I'll try to derp a bit
with the vcpu thing, just afraid 2 threads aren't enough for fedora :/

2015-12-26 11:59 GMT+01:00 Eddie Yen <missile0407 at gmail.com>:

> I forgot your CPU type, so I don't know about your case.
>
> But, as I'm using 4820K, I usually using 4 to 6 threads gave to VM, only
> use 2 threads for Fedora host.
> And most important is vCPU tweaks, especially CPU topology and Hyper-V.
>
> For me, I usually set topology as "sockets=1 cores=6 threads=1" if using 6
> threads from host.
> Then set cpuset= to let vCPU worked on pointed CPU threads.
>
> IME, set all threads as vCPU cores can got better performance on Windows
> 10.
>
> 2015-12-26 18:00 GMT+08:00 thibaut noah <thibaut.noah at gmail.com>:
>
>> Hello guys merry christmas ! o/
>> My current issue is vm and host optimization, i use my windows 10 vm for
>> gaming purposes only (like most of us i think), problem is, to keep my
>> performances on windows high i drain too much ressources on my fedora host
>> thus making it almost useless (also when leaving the vm i most of the time
>> found myself unable to use fedora at all so i have to reboot...).
>> So is it possible to improve performances to the max on the guest without
>> almost killing the host ?
>> Should i consider switching my gear for a bi-xeon? (to assign one fully
>> to the host and one to the guest)
>> I'm actually not sure about what happen here, does anyone ran into the
>> same sort of issue?
>> Have a good day
>>
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>>
>
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