mtrr setup?

David A. Bandel david
Mon May 17 11:42:52 PDT 2004


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On Mon, 6 Jan 2003 10:56:37 -0500
begin  Douglas J Hunley <doug at hunley.homeip.net> spewed forth:

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> David A. Bandel spewed electrons into the ether that resembled:
> > What's in your /proc/mtrr file anyway and are you sure you can do
> > better?
> 
> reg00: base=0x00000000 ( 0MB), size=2048MB; write-back, count=1

you have 2Gb of memory?

> 
> I'm pretty sure that is not optimal

reg00: base=0x00000000 (   0MB), size= 256MB: write-back, count=1
reg01: base=0xe4000000 (3648MB), size=  64MB: write-combining, count=1
reg02: base=0xdc000000 (3520MB), size=   4MB: write-combining, count=1

IIRC, you can only have one write-back entry, the rest will be
write-combining.  Do you have other entries?  Those others are the ones
you should worry about.

Ciao,

David A. Bandel
- -- 
Focus on the dream, not the competition.
		-- Nemesis Racing Team motto
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