Re: Patch to reorder functions in the vmlinux to a defined order

[Zwane Mwaikambo]

On Thu, 23 Feb 2006, Arjan van de Ven wrote:

> This patch puts the infrastructure in place to allow for a reordering of
> functions based inside the vmlinux. The general idea is that it is possible
> to put all "common" functions into the first 2Mb of the code, so that they
> are covered by one TLB entry. This as opposed to the current situation where
> a typical vmlinux covers about 3.5Mb (on x86-64) and thus 2 TLB entries.
> (This patch depends on the previous patch to pin head.S as first in the order)

Hello Arjan,
	Assuming that functions defined in an object file are related and 
hence benefit from cache spatial locality, doesn't this affect this 
greatly? It would seem that with regards to the kernel image on x86, (2MB) 
TLB usage isn't as scarce a resource as icache.
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