Re: [PATCH] [0/6] HUGETLB memory commitment

From: Andy Whitcroft <>
Date: 2004-03-26 10:59:21
--On 25 March 2004 15:51 -0800 Andrew Morton <> wrote:

> I think it's simply:
> - Make normal overcommit logic skip hugepages completely
> - Teach the overcommit_memory=2 logic that hugepages are basically
>   "pinned", so subtract them from the arithmetic.
> And that's it.  The hugepages are semantically quite different from normal
> memory (prefaulted, preallocated, unswappable) and we've deliberately
> avoided pretending otherwise.

True currently.  Though the thread that prompted this was in response to 
the time taken for this prefault and for the wish to fault them.

I'll have a poke about at it and see how small I can make it.

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Received on Thu Mar 25 19:08:37 2004

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