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SubjectRe: How to determine what portion of memory is cached?
Hi!

> > Is there a way in the kernel startup code (or anywhere in kernel
> > for that matter) to determine what portions of physical system
> > RAM are cached?
>
> The extended memory queries from the BIOS (E820) do actually provide this
> information if I remember rightly

Well, and the same bios call reports ROM memory as being usable RAM on
my toshiba :-).

If you stay away from 640KB..1MB region, common possibilities are that
everything >64MB is not cached, or that everything >16MB is not
cached. It should be rather easy to benchmark that.
Pavel
--
I'm really pavel@ucw.cz. Look at http://195.113.31.123/~pavel. Pavel
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