Re: [coLinux-users] Re: only half of memory detected

[Dani R. <rid...@ya...>]

Ok, thx all for the explanations.

-Dani-

--- Nuno Lucas <nt...@nl...> wrote:

> Dani Ridhaswana, dando pulos de alegria, escreveu :
> > Hi,
> > 
> > I have Z-pro machine with 4GB RAM installed. On
> > colinux xml file I tried to use 1000MB of memory
> for
> > colinux, but it's detected only ~500MB. Do you
> know
> > why? Is it because I used 1024MB image file for
> swap?
> 
> CoLinux memory is limited by kernel memory.
> Windows (and Linux in some configs) uses 2GB for
> user space and 2GB for 
> kernel space, so you can only use 2GB for all your
> kernel address space.
> 
> Your graphics card AGP memory is also mapped into
> the kernel address 
> space, which will probably give you only the ~500MB
> you say you have 
> left (also, it's not easy to fit all kernel objects
> inside only 1GB of 
> memory - that includes bitmaps (your desktop
> background), as GDI is in 
> kernel space).
> 
> The swap file is not relevant.
> The only fix I know is going for a 64 bits OS. There
> are some hacks for 
> the normal 32 bits Linux to address more memory, but
> the real solution 
> is 64-bit Linux and/or 64-bit Windows as the host OS
> (note that Linux 
> doesn't use as much kernel memory as Windows, so the
> problem is not so big).
> 
> > Another question, can TAP-win32 driver has 100Mbps
> > instead of 10Mbps connection?
> 
> That value is not relevant.
> The network interface is known to be slow, but
> remember colinux is still 
> in an early phase of development ;)
> 
> Regards,
> ~Nuno Lucas
> 
> 
> 
>
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