Anyone try 4.5 to see if it resolves this issue? On Tue, Mar 22, 2016 at 10:52 PM, Brandon Ganem <brandonga...@gmail.com> wrote:
> I see this on my end, ubuntu 16.04 beta. Also using CPU pinning. > Sitting in windows 10 with a web browser is enough. > > > Linux 4.4.0-15-generic #31-Ubuntu SMP Fri Mar 18 19:08:31 UTC 2016 x86_64 > x86_64 x86_64 GNU/Linux > qemu: https://launchpad.net/ubuntu/+source/qemu/1:2.5+dfsg-5ubuntu6 > > Thanks. > > > On Tue, Mar 22, 2016 at 6:56 AM, Okky Hendriansyah <okky....@gmail.com> > wrote: > >> On Tue, Mar 22, 2016 at 12:12 AM, Jon Panozzo <j...@lime-technology.com> >> wrote: >> >>> Can confirm 4.2.8 kernel doesn’t exhibit this behavior with the same >>> QEMU package and VM guest. So taking the exact same software configuration >>> to the 4.2.8 kernel results in normal CPU usage, but with any 4.4.x kernel >>> variant I’ve tried thus far, I’ve seen the same 100% usage. >>> >>> It seems to apply when any media application is in use (3D, audio, or >>> video). Just playing an MP3 for me caused the host to go to 100%. And if >>> I leave shadowplay running, it stays at 100% as well. Any application that >>> pulls on a VFIO passed-through device seems to cause this to occur for me. >> >> >> Finally someone else beside me that experienced this kind of behavior. At >> first I thought it was only on the demanding games. But when I also noticed >> that also whenever I play music on my audio player the host CPU went 100% >> on all cores. Although it didn't really affect the game performance, but >> seeing the CPU load like that made me step back for the time being to >> kernel 4.1.x >> >> Best regards, >> Okky Hendriansyah >> >> >> _______________________________________________ >> vfio-users mailing list >> vfio-users@redhat.com >> https://www.redhat.com/mailman/listinfo/vfio-users >> >> >
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