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

From: Rik van Riel (
Date: Thu Jan 03 2002 - 08:30:58 EST

On Thu, 3 Jan 2002, Alan Cox wrote:

> > Which function does the reserved memory fulfill ?
> > Is it all for paging ?
> 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.

Expect to see this integrated into the rmap VM soon ;)



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