[Wine] What is 'CPU' memory?

Jim Hall volunteer.jim at gmail.com
Sat Nov 13 09:49:42 CST 2010

tparker, please disregard personal reply - gmail did something stupid again

On Sat, Nov 13, 2010 at 9:45 AM, Jim Hall <volunteer.jim at gmail.com> wrote:

> On Thu, Nov 11, 2010 at 9:17 AM, tparker <tparker at etherstorm.net> 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 junk uses hardware differently than OpenGL
> That's the closest I could get to "CPU memory".

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