Re: [PATCH 1/2] msi: Invert the sense of the MSI enables.

[Andi Kleen]

> Do we have a feel for how much performace we're losing on those 
> systems which _could_ do MSI, but which will end up defaulting
> to not using it?

At least on 10GB ethernet it is a significant difference; you usually
cannot go anywhere near line speed without MSI

I suspect it is visible on high performance / multiple GB NICs too.

-Andi
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