Re: Why *not* rmap, anyway?

[Rik van Riel <riel@conectiva.com.br>]

On 24 Apr 2002, Momchil Velikov wrote:

> Rik> You really need to read the pmap code and interface instead
> Rik> of repeating the statements made by other people. Have you
> Rik> ever taken a close look at the overhead implicit in the pmap
> Rik> layer ?
>
> Actually, on ia32, there's no reason for the pmap layer to be any
> different than the Linux radix tree. The overhead argument does not
> stand.

So how do you run a pmap VM without duplicating the data from
the pmap layer into the page tables ?

Remember that for VM info the page tables -are- the radix tree.

regards,

Rik
-- 
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