[vfio-users] R9 380 Performance Issues

Running into some issues with passing through an R9 380 (besides the usual reset bug). Processor's a 5960x, if that's relevant.   First up, I'm running Arch Linux on kernel 4.4.5. For what it's worth, the issues occurred on the latest Fedora kernel, too.   I'm using OVMF rather than VGA,

Re: [vfio-users] cpu usage in guest != cpu usage in host, even with exclusive pinning

Okay wow, Alex. That made a huge difference immediately. That dropped me from 90% to 33% on the main thread, and all the children are below 10%. On Sun, Apr 3, 2016 at 8:07 PM, Alex Williamson wrote: > If this is the issue I think it is, the unraid folks bisected

[vfio-users] Translation project, info updates needed.

I've started a (yet)one-man-army translation project with the objective of bringing info and knowledge about VFIO to my native language. I've partially translated aw's blog post about iommu groups dated back to august 2014, and since that time a lot has changed. For example, the post says that

Re: [vfio-users] cpu usage in guest != cpu usage in host, even with exclusive pinning

If this is the issue I think it is, the unraid folks bisected this and found the culprit as: aca6ff2 KVM: dynamic halt-polling ( https://github.com/torvalds/linux/commit/aca6ff29c4063a8d467cdee241e6b3bf7dc4a171 ) It seems to be a poor interaction of the halt polling interval vs the timer ticks

Re: [vfio-users] I am confused about Intel GPU status

30k PC had no Intel GPU involved ___ vfio-users mailing list vfio-users@redhat.com https://www.redhat.com/mailman/listinfo/vfio-users

Re: [vfio-users] I am confused about Intel GPU status

My host is always using intel built-in gpu, never had an issue with it. 2016-04-04 1:02 GMT+02:00 Nick S : > Hi guys, > > I remember reading that to use Intel GPU on your host you need to patch > your kernel. Is it still required? The reason I am asking is that I watched >

[vfio-users] I am confused about Intel GPU status

Hi guys, I remember reading that to use Intel GPU on your host you need to patch your kernel. Is it still required? The reason I am asking is that I watched the "30k PC" video from Alex blog and it looks like they are using motherboard GPU for host there with no issues. Also, is it required for

Re: [vfio-users] Disk Performance

Boy, I insist that I hate the extremely poor documentation. No matter how much time I spend with this, I can't get a perfect config setup, everytime I think I nailed it, someone else appears to burst my bubble.Before the other guy mail, I don't recall that even once I saw that there was

Re: [vfio-users] Disk Performance

Hi again, Yep, I just copied and pasted it. Thanks for updating my script, I've added the changes. Thanks again, sarnex On Sun, Apr 3, 2016 at 5:33 AM, Bob Dawes wrote: > My apologies as you appear to have inherited all my unnecessary > configuration options on the

Re: [vfio-users] Disk Performance

My apologies as you appear to have inherited all my unnecessary configuration options on the block device. As I'm messing around with qemu and I don't really understand that driver yet I tend to explicitly set every option so next time I use the VM with a new testing version of qemu my VM