With careful hardware selection you can avoid the pitfalls to gaming in a VM. Well not the security pitfalls, although they are mostly contained in a VM. Also with the correct hardware you can game with 95% of the performance when compared to bare metal. There are many pitfalls to avoid like Nvidia blocking PCI pass-through to AMD reset bugs. These can be avoided with careful hardware selection.
This link will get you started in your search for gaming in a VM. https://forum.level1techs.com/t/play-games-in-windows-on-linux-pci-passthrough-quick-guide/108981 Please do not bother the good developers here with questions as I believe this is outside the scope of qubes. Take any questions you have to Level1Techs. John On Sunday, December 9, 2018 at 9:13:05 PM UTC+1, Stuart Perkins wrote: > On Sun, 9 Dec 2018 17:13:54 +0000 > Mike Keehan <>snip>> wrote: > > >On Thu, 6 Dec 2018 15:54:17 -0800 (PST) > >Eric Duncan <>snip.com>> wrote: > > > >> Finally received my new Thinkpad X1 Yoga 3rd gen. > >> > >> i7-8650U up to 4.2 Ghz Turbo > >> > >> How can I debug/check that my CPU governor/frequency is scaling > >> correcting under Qubes R4? > >> > >> So far, the only thing I've found is xentop/xl top that lists the CPU > >> - as a never-changing 2.1 Ghz. Maybe this isn't the best way to > >> measure CPU freq under dom0? All other tools seemed to want to use > >> xfce4 tools, which seemed to only be specific to that fedora VM - and > >> not the xen host. > >> > >> /TL;DR > >> > >> > >> I let Windows 10 register itself before wiping the disk and > >> installing Qubes R4. Under Windows, Google Chrome benchmarked around > >> 5300 pts with the online tool I was using. As a test, I also > >> installed Arch Linux briefly to test Chrome performance, and it came > >> in around 4500 pts. I chalk that up to not optimizing anything on > >> the system - just a raw install and no tweaks. > >> > >> Now, under Qubes R4.0, I'm still noticing a lot of > >> sluggishness/slowdowns just like my older Thinkpad Helix has always > >> had under Qubes R3.2 (and one of the reasons why I waited for this > >> quad core CPU to upgrade my Qubes install). I could never benchmark > >> Chrome under that Helix dual-core low-powered device. > >> > >> I loaded up Chrome on a new debian-9 VM and... Almost the same > >> extremely sluggish performance. Google Chrome can't even get > >> partially through the benchmarks without timing out, much less finish > >> them. > >> > >> I've tried assigning 4 and even 8 vcpus to try to max things out. > >> > >> I am wondering where to start to debug this. > >> > >> Is it a dom0 cpu scaling thing? > >> > >> Does Qubes impose some artificial throttling? > >> > >> Is it a lag in iGPU rendering through the DisplayVM? (this DisplayVM > >> is a new concept to me, still trying to figure it out) > >> > >> I've spent about 3 days on this device with various other issues to > >> get to this point (no S3 sleep yet, pixel-perfect scaling of the HDR > >> 1440p 14" display, etc). I few duckduckgo searches hasn't turned > >> anything up yet; so, i'll continue when I have some time. > >> > >> Thanks! > >> -E > >> > > > >Hi Eric, > > > >If your Chrome benchmarks involve 3D acceleration using the GPU, then > >they won't work under Qubes. > > > >Each Qube VM renders it's windows in software, which is then copied to > >dom0 for display on the Xwindow system. Only dom0 has access to the > >GPU, and you are not supposed to run applications on dom0 for security > >reasons. (And of course, dom0 has no internet connection anyway.) > > > >Mike. > > > > Qubes is a "security oriended" OS. If you want to game, use a different > physical system. Gaming by its very nature is best done NOT in a VM. > > Stuart -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/0b78e341-d149-49ef-86d7-026489e699b1%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
