Pining CPU can reduce the happening that host and guest using the same thread at the same time.
And I don't know which program you're using on Fedora, so I don't have quite answer that 2 threads is enough for host or not. It's all depends on your usage case. 2015-12-26 19:44 GMT+08:00 thibaut noah <[email protected]>: > 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 <[email protected]>: > >> 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 <[email protected]>: >> >>> 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 >>> >>> _______________________________________________ >>> vfio-users mailing list >>> [email protected] >>> https://www.redhat.com/mailman/listinfo/vfio-users >>> >>> >> >
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