Messages in this thread | | | Date | Tue, 25 Mar 2008 18:34:13 -0600 | From | "David Mosberger-Tang" <> | Subject | Re: larger default page sizes... |
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On Tue, Mar 25, 2008 at 5:41 PM, Peter Chubb <peterc@gelato.unsw.edu.au> wrote: > The main issue is that, at least on Itanium, you have to turn off the hardware > page table walker for hugepages if you want to mix superpages and > standard pages in the same region. (The long format VHPT isn't the > panacea we'd like it to be because the hash function it uses depends > on the page size).
Why not just repeat the PTEs for super-pages? That won't work for huge pages, but for superpages that are a reasonable multiple (e.g., 16-times) the base-page size, it should work nicely.
--david -- Mosberger Consulting LLC, http://www.mosberger-consulting.com/
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