Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core)

From: Rik van Riel
Date: Thu Aug 17 2006 - 11:18:00 EST

Dave Hansen wrote:

My main thought is that _everybody_ is going to have to live with the
entry in the 'struct page'. Distros ship one kernel for everybody, and
the cost will be paid by those not even using any kind of resource
control or containers.

Every userspace or page cache page will be in an object
though. Could we do the pointer on a per object (mapping,
anon vma, ...) basis?

Kernel pages are not using all of their struct page entries,
so we could overload a field.

It all depends on how much we really care about not growing
struct page :)

What is important? What you want to be true, or what is true?
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