750ti Pass-through Performance Slow

[phan505]

Hey everyone,

I have a been able to pass-through my 750 ti, however it is laggy. I have tried using OVMF/Seabios with both WIN 7/10, lowering the ram to 2G, switching between Hyper-V on and off. I am not sure why the performance is lacking. I switch between unraid 6.1.9 and 6.2.0 beta. I do have onboard graphics from my Xeon E3-1245 v3.

 

I have done some reading about IOMMU groups and I think that might be my problem I am not really sureI have it enabled and that is about it.  If you guys can help, that would be great! Thanks 

 

CPU: Intel® Xeon® CPU E3-1245 v3 @ 3.40GHz
HVM: Enabled
IOMMU: Enabled
Cache: 1024 kB, 256 kB, 8192 kB
Memory: 8192 MB (max. installable capacity 32 GB)
Kernel: Linux 4.4.6-unRAID x86_64

 

[   10.218744] DMAR: dmar0: Using Queued invalidation
[   10.218853] DMAR: dmar1: Using Queued invalidation
[   10.251804] DMAR: Software identity mapping for device 0000:00:00.0
[   10.251875] DMAR: Software identity mapping for device 0000:00:01.0
[   10.251949] DMAR: Software identity mapping for device 0000:00:02.0
[   10.252019] DMAR: Software identity mapping for device 0000:00:03.0
[   10.252090] DMAR: Software identity mapping for device 0000:00:14.0
[   10.252160] DMAR: Software identity mapping for device 0000:00:16.0
[   10.252230] DMAR: Software identity mapping for device 0000:00:16.3
[   10.252303] DMAR: Software identity mapping for device 0000:00:19.0
[   10.252373] DMAR: Software identity mapping for device 0000:00:1a.0
[   10.252444] DMAR: Software identity mapping for device 0000:00:1b.0
[   10.252514] DMAR: Software identity mapping for device 0000:00:1d.0
[   10.252584] DMAR: Software identity mapping for device 0000:00:1f.0
[   10.252654] DMAR: Software identity mapping for device 0000:00:1f.2
[   10.252724] DMAR: Software identity mapping for device 0000:00:1f.3
[   10.252799] DMAR: Software identity mapping for device 0000:01:00.0
[   10.252869] DMAR: Software identity mapping for device 0000:01:00.1
[   10.252939] DMAR: Setting RMRR:
[   10.253004] DMAR: Setting identity map for device 0000:00:02.0 [0x7f000000 - 0xbf1fffff]
[   10.257894] DMAR: Setting identity map for device 0000:00:14.0 [0x7def9000 - 0x7df05fff]
[   10.257968] DMAR: Setting identity map for device 0000:00:1a.0 [0x7def9000 - 0x7df05fff]
[   10.258042] DMAR: Setting identity map for device 0000:00:1d.0 [0x7def9000 - 0x7df05fff]
[   10.258116] DMAR: Prepare 0-16MiB unity mapping for LPC
[   10.258184] DMAR: Setting identity map for device 0000:00:1f.0 [0x0 - 0xffffff]
[   10.258370] DMAR: Intel(R) Virtualization Technology for Directed I/O
[   10.288901] AMD IOMMUv2 driver by Joerg Roedel <[email protected]>
[   10.288971] AMD IOMMUv2 functionality not available on this system
[   10.293167] DMAR: 32bit 0000:00:1a.0 uses non-identity mapping
[   10.293246] DMAR: Setting identity map for device 0000:00:1a.0 [0x7def9000 - 0x7df05fff]
[   10.303965] DMAR: 32bit 0000:00:1d.0 uses non-identity mapping
[   10.304042] DMAR: Setting identity map for device 0000:00:1d.0 [0x7def9000 - 0x7df05fff]

[DanTheMan827]

I have the same problem except I have a GTX 650ti and a i7 4770k

 

Connected over HDMI the audio has issues and a USB PCIE card passed through also has issues