Re: [vfio-users] Brutal DPC Latency - how is yours? check it please and report back

2015-12-28 Thread rndbit
4000μs-16000μs here, its terrible. Tried whats said on https://lime-technology.com/forum/index.php?topic=43126.15 Its a bit better with this: > 4 > > > > > > > I tried /isolcpus/ but it did not yield visible benefits. /ndis.sys/ is big offender here but i dont reall

Re: [vfio-users] (no subject)

2015-12-28 Thread rndbit
I only half-managed to pass-though geforce 960m. got it to not display any errors in device manager but it still did not work. However even if you get it working ask yourself how you gonna use it. I am not aware of laptop display being able to switch between graphics processors at will. On 2015.12

[vfio-users] (no subject)

2015-12-28 Thread Emil P
Hey guys, does anyone know, if the new Notebooks with desktop gpu's will work? I want to buy one with a i7-6700K and a GTX 980. http://www.mysn.de/xmg-ultimate-gaming-notebooks/xmg-u726 The CPU has VT-D and VT-X spupport and the GPU should work too.

Re: [vfio-users] Optimize vm and host performance, is dual xeon the way ?

2015-12-28 Thread Eddie Yen
OK, I'll have a try, thank you :) 2015-12-28 17:54 GMT+08:00 Karsten Elfenbein : > It just hands the layout of your CPU to the guest. So apps can decide > on threading. > > Pinning the CPU to avoid CPU 0 and 4 will reduce the performance a bit > as a complete physical core is reserved for the hos

Re: [vfio-users] Optimize vm and host performance, is dual xeon the way ?

2015-12-28 Thread Karsten Elfenbein
It just hands the layout of your CPU to the guest. So apps can decide on threading. Pinning the CPU to avoid CPU 0 and 4 will reduce the performance a bit as a complete physical core is reserved for the host OS. There are faster Desktop CPUs to compensate if needed but dual Xeon that can keep up i

Re: [vfio-users] Optimize vm and host performance, is dual xeon the way ?

2015-12-28 Thread Eddie Yen
Oh! there is one thing. If topology set as whole threads as sockets, how will it happened on performance? As I known, Windows Task Manager will show only 2 CPU usage bar if set as whole sockets. 2015-12-28 18:02 GMT+08:00 Eddie Yen : > OK, I'll have a try, thank you :) > > 2015-12-28 17:54 GMT+0

Re: [vfio-users] Optimize vm and host performance, is dual xeon the way ?

2015-12-28 Thread Karsten Elfenbein
Hi, that looks good. Processors 0 and 4 are not used in pinning and remain on the host OS. https://en.wikipedia.org/wiki/Hyper-threading Basically as soon as you load one OS CPU on a physical core the other HT core will be able to perform a lot less stuff. This should provide the guest some detai

Re: [vfio-users] Booting from VirtIO disk

2015-12-28 Thread rndbit
Right, it used to work, somehow didnt this time. With a bit of tinkering i remembered vmware used to have similar issue. Solution was to set LSI_SAS driver on "boot start". I did the same to virtio disk driver and then it worked. Yay.. On 2015.12.28 11:20, Karsten Elfenbein wrote: > Hi, > > I had

Re: [vfio-users] Booting from VirtIO disk

2015-12-28 Thread Karsten Elfenbein
Hi, I had the same issue after upgrading to win10. I kept the boot disk on ATA/IDE and added an other disk with virtio. Then I installed the windows 10 virtio drivers for the second disk. (latest virtio-win.iso should have those) With that in place I could switch back to virtio for my boot disk.

Re: [vfio-users] Optimize vm and host performance, is dual xeon the way ?

2015-12-28 Thread Eddie Yen
This should provide the guest some details of the provided vCPUs: I tested this method before, using the 4820K. The result I got is the performance not get better that set whole threads as cores when tested 3DMark. But I didn't pinning 0 and 4 thread to host. I'll test it again soon. 2015-12-

[vfio-users] Booting from VirtIO disk

2015-12-28 Thread rndbit
I bumped into this strange issue - i can no longer boot windows guest from VirtIO disk. Windows logo shows up briefly and then it throws INACCESSIBLE_BOOT_DEVICE error. Switching disk to IDE works. Interesting part is that i actually have installed virtio drivers and virtio disks added after VM is