Re: What is 'CPU' memory?

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Everyone, I'm sorry for the screw ups. Gmail and I had a major argument and
my fixing didn't work. I hope this one does. A moderator is welcome to
delete my mistakes. Or leave them alone for comic relief.
***********************************************

On Thu, Nov 11, 2010 at 9:17 AM, tparker <tparker@xxxxxxxxxxxxxx> wrote:

> When playing WoW through Wine (1.3.6) my video settings are limited because
> some of them require "2G or more CPU memory".  Another computer in the house
> can play in Windows with those settings maxed out on a graphics card that
> only has 1G built in, so the setting doesn't mean graphics memory. My
> computer has 5G of ram (32 bit PAE kernel) so it's not that. So what is CPU
> memory and how do I tell if I really don't have enough or if there is a
> problem with the game detecting it properly through wine?
>
>

My first thought was the different kinds of CPU cache memory, but their
totals are much less than 2GB. An article on Wikipedia makes a clear
distinction between cache and system RAM.
http://en.wikipedia.org/wiki/CPU_cache

I believe the following to be valid:
     Wine is a 32 bit program
     WoW is a 32 bit program
     Very broadly speaking, 32 bit only deals with a max of aprox. 3.2 GB of
system RAM
     I have seen discussions (here and/or WoW) that suggests limiting what
Wine "sees" to 3 GB of system RAM
     Anything over 3GB is wasted and may introduce a fubar factor
     Whatever your hardware can do may not be what particular software
can/can't do
     The Windoze comp may be sharing system RAM with the video card (check
BIOS for that)
     WoW has raised the graphics bar again, Shader 4 support is now required
to use some settings at max
     MS Direct stuff uses hardware differently than OpenGL


That's the closest I could get to "CPU memory".

Jim
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