> So unless there is some other array that is sized by NR_IRQs
> in the context switch path which could account for this in
> other ways. It looks like you just got unlucky.
TLB/cache profiling data might be useful?
My bet would be more on cache effects.
> The only hypothesis that I can seem to come up with is that maybe
> you are getting an extra tlb now that you didn't use to.
> I think the per cpu area is covered by huge pages but maybe not.
It should be.
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