My guess is that "when it started to work, I kept it" sums it up for most people on this list.
It certainly sums it up for me! I tried Arch, then Fedora when I struggled with Arch (I tried Fedora b/c Alex's blogs were written from a Fedora angle), then Arch again when I struggled with Fedora on things that I had conquered with Arch the previous time. On Fri, Feb 26, 2016 at 4:05 AM, Quentin Deldycke <[email protected] > wrote: > Yes, during my experimentation I made mistakes, when it started to work, I > kept it :) > On 26 Feb 2016 10:54 am, "Rokas Kupstys" <[email protected]> wrote: > >> Hmm what you just wrote i dont understand. >> >> CONFIG_RCU_NOCB_CPU_ALL=y >> >> Documentation: >> >> This option forces all CPUs to be no-CBs CPUs. The rcu_nocbs= boot >> parameter will be ignored. >> >> So at least rcu_nocbs kernel parameter should not be needed as i >> understand. Right? >> >> Still ill try these settings, cant be any worse :) >> >> On 2016.02.26 11:16, Quentin Deldycke wrote: >> >> Mainly: >> >> CONFIG_NO_HZ_FULL=y >> CONFIG_RCU_NOCB_CPU_ALL=y >> >> Using cgroups / cpu pinnning, the cores won't have to handle any kernel >> tick, but only run qemu >> >> For my i7 4790k, i am force to put vm on 3 threads (the main of my 3 >> cores). So kernel parameter: >> >> nohz_full=1,2,3,5,6,7 rcu_nocbs=1,2,3,5,6,7 >> >> and my vm run on threads 1,2,3 (main thread of cores 1,2,3) >> and qemu emulator run on threads 5,6,7 (sub threads of cores 1,2,3) >> >> Amd cards seems more affected by DPC than nvidia ones. >> >> Note an interesting thing: >> >> >> http://www.guru3d.com/articles-pages/rise-of-the-tomb-raider-pc-graphics-performance-benchmark-review,9.html >> >> amd and multi cores is... erratic :) >> >> -- >> Deldycke Quentin >> >> >> On 26 February 2016 at 09:53, Rokas Kupstys <[email protected]> wrote: >> >>> Could you elaborate on config differences? Still hunting for something >>> that could help bringing DPC latency down since VM gaming is no go due to >>> that.. >>> >>> >>> On 2016.02.26 10:51, Quentin Deldycke wrote: >>> >>> For my part: >>> >>> debian with some experimental package. When new kernel is out, i >>> recompile it with some difference in config. >>> >>> But right now, 4.5 rc4. >>> >>> No problem with the host since ages. Plasma is buggy but... i think on >>> every distro xD >>> >>> >>> -- >>> Deldycke Quentin >>> >>> >>> On 26 February 2016 at 09:43, Stein van Broekhoven < >>> <[email protected]>[email protected]> wrote: >>> >>>> Dear All, >>>> >>>> What do you consider the distro of choice for a stable vm gaming build? >>>> At the moment I'm on solus because it has 4.4.0 kernel by default and I >>>> like the project. >>>> Got libvirtd & virsh working with qemu but just can't get passthrough >>>> to work as of now. >>>> >>>> I have a : >>>> ASUS SABERTOOTH 990FX v1 with FX-8120 >>>> Ati Radeon 6xxx >>>> Ati Radeon 5xxx >>>> >>>> I had it working at some point with ubuntu but that is some time ago >>>> and don't remember how. >>>> >>>> >>>> Kind regards, >>>> >>>> Stein van Broekhoven / System administrator >>>> [email protected] >>>> >>>> _______________________________________________ >>>> vfio-users mailing list >>>> [email protected] >>>> https://www.redhat.com/mailman/listinfo/vfio-users >>>> >>> >>> >>> >>> _______________________________________________ >>> vfio-users mailing >>> [email protected]https://www.redhat.com/mailman/listinfo/vfio-users >>> >>> >>> >>> _______________________________________________ >>> vfio-users mailing list >>> [email protected] >>> https://www.redhat.com/mailman/listinfo/vfio-users >>> >>> >> >> >> _______________________________________________ >> vfio-users mailing >> [email protected]https://www.redhat.com/mailman/listinfo/vfio-users >> >> >> >> _______________________________________________ >> vfio-users mailing list >> [email protected] >> https://www.redhat.com/mailman/listinfo/vfio-users >> >> > _______________________________________________ > vfio-users mailing list > [email protected] > https://www.redhat.com/mailman/listinfo/vfio-users > >
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