Re: 2.6.19-rc1: x86_64 slowdown in lmbench's fork

[Andi Kleen]

> Which invalidates the tlb fault hypothesis unless it happens to lie
> on the 2MB boundary.

It's in different pages than the code. 

One drawback of using large TLBs is that the CPUs tend to have a lot less
of them than small TLBs so they can actually thrash quicker if you're unlucky.

Only profiling can tell I guess.

-Andi
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