Re: pud_bad vs pud_bad

From: Jeremy Fitzhardinge
Date: Thu Feb 05 2009 - 17:07:46 EST


Ingo Molnar wrote:
We'd also lose a fair bit of performance (not to mention the pagetable footprint doubling that Hugh already mentioned) on 32-bit PAE capable systems that dont actually have RAM above 4G physical.

Why's that? Do you mean directly from using PAE, or as a side-effect of highmem?

J
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