Intel GVT-g GPU Virtualization Moves Closer

[geearf]

I am not up to date on visualization so please forgive my naive question, but does this GVT-g work on older hardware where pass-through is not an option?

Ever since I saw people doing pass-through with 90+% perf I wanted to try, but out of my 3 desktops, no CPU supports VT-d, and only one motherboard might.

[liam]

I am not up to date on visualization so please forgive my naive question, but does this GVT-g work on older hardware where pass-through is not an option?

Ever since I saw people doing pass-through with 90+% perf I wanted to try, but out of my 3 desktops, no CPU supports VT-d, and only one motherboard might.

Nothing to do with hardware assisted pass through.

[_SXX_]

I am not up to date on visualization so please forgive my naive question, but does this GVT-g work on older hardware where pass-through is not an option?

Likely it's not an option because GVT-g only support Haswell and above.

[geearf]

Nothing to do with hardware assisted pass through.

Nothing to do with specs required for assisted pass through?

Likely it's not an option because GVT-g only support Haswell and above.

Oh I see, that's unfortunate.

Actually I believe one CPU to be a 3220 so Haswell, that could work, or are pentium out the way as well?

Either way, is this for allowing multiple VMs with "almost pass-through perf" that pass-through couldn't do?

Thanks!

[_SXX_]

Actually I believe one CPU to be a 3220 so Haswell, that could work, or are pentium out the way as well?

3220 is Ivy Bridge CPU. No idea about Pentium and others.

[geearf]

3220 is Ivy Bridge CPU. No idea about Pentium and others.

Newegg and wikipedia both say it is Haswell.
Are you sure? (I don't know myself).

This seems to agree:

http://ark.intel.com/products/codename/42174/Haswell#@All

[kobblestown]

Newegg and wikipedia both say it is Haswell.
Are you sure? (I don't know myself).

This seems to agree:
http://ark.intel.com/products/codena...4/Haswell#@All

Core i3-3220 is Ivy Bridge. Pentium G3220 is Haswell. You should have specified the complete CPU model name to avoid confusion. But I assume you have Pentium G3220 which is unequivocally Haswell.

Now whether it's supported by GVT-g I don't know. I would assume so. The Pentium G should have the same GPU pipelines as the corresponding Core i3/5/7s only fewer in number and possibly running at lower frequencies (and maybe missing video encoding support and some other bells and whistles but that's not really GPU stuff IMO). There's no better way than trying it out youself

I have a Haswell-based Pentium G3420 in my server but I cannot try this because I don't tolerate server downtime. And the whole Xen thing looks very intimidating compared to KVM.

[geearf]

Like you I'd rather have that in kvm as well, but I'd like to know if I should follow this or drop it till I get better hardware.

Based on your guess it looks good, so I'll keep checking.

Thanks!