On Sat, Apr 21, 2012, Chegu Vinod wrote about "Re: Networking performance on a KVM Host (with no guests)": > some traffic through between the hosts... then we can't expect to get line rate > on that private NIC. If you're not using device assignment, then just disable intel_iommu. If you *are* using device assignment, try setting intel_iommu to something other then on. Maybe intel_iommu=pt will work (see http://lwn.net/Articles/329174/). But I actually never tried this myself - so let me know if it works ;-) Is anyone else aware of a different "best practice", on how to enable VT-d for device assignment, without any changes (in performance or security) in the host? -- Nadav Har'El | Sunday, Apr 22 2012, nyh@xxxxxxxxxxxxxxxxxxx |----------------------------------------- Phone +972-523-790466, ICQ 13349191 |Sign in zoo: Do not feed the animals. If http://nadav.harel.org.il |you have food give it to the guard on duty -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
