Re: i686 SMP systems with more then 12 GB ram with 2.4.x kernel ?

From: Hugh Dickins (
Date: Fri Jan 04 2002 - 07:09:56 EST

On Thu, 3 Jan 2002, Rik van Riel wrote:
> On Thu, 3 Jan 2002, Alan Cox wrote:
> > A lot of it is the page structs (64bytes per page - which really
> > should be nearer the 32 some rival Unix OS's achieve on x86)
> The 2.4 kernel has the page struct at 52 bytes in size,
> William Lee Irwin and I have brought this down to 36.

Please restate those numbers, Rik: I share Alan's belief that the
current standard 2.4 kernel has page struct at 64 bytes in size.


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