Re: x86 vs. x86_64

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Author: Matt Graham
Date:  
To: Main PLUG discussion list
Subject: Re: x86 vs. x86_64
From: Eric Shubert <>
> First off, I believe that the limit w/out PAE is 3G.


This depends on how you've set up the kernelspace/userspace split. I believe
the default kernel config is 3G/1G, but there are kernel options to make that
3.5G/0.5G, and possibly 3.8G/0.2G. Userspace stuff can't access the whole 4G
because it needs to be able to call kernel routines. Changing the split may
require recompiling the kernel, or just poking something into a file in /proc.
I don't know; my home orkstation only has 1G....

> Alex Dean wrote:
>> This has always confused me a bit, so it seems like a good time to ask.
> You're not alone there. ;)


Complicated stuff is confusing, and this is kind of complicated.

--
Matt G / Dances With Crows
The Crow202 Blog: http://crow202.org/wordpress/
There is no Darkness in Eternity/But only Light too dim for us to see


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