FreeLists / openbeos / [openbeos] Re: kernel memory limit

["Axel Dörfler" <axeld@xxxxxxxxxxxxxxxx>]

"Alexander G. M. Smith" <agmsmith@xxxxxxxxxx> wrote:
> > Michael Phipps wrote on Mon, 02 Jun 2003 18:03:03 -0400:
> > There will be a kernel virtual space that is mapped into every 
> > process. How big 
> > this is is yet to be determined. Let's say, for the sake of 
> > arguement, it is 1 gb. 
> > This means that you (the user) can have an amount of mapped memory 
> > that
> > approaches 3 gb. Probably not quite all of that, but close. 
> Grumble.  Smaller RAM disk size then, since it uses Kernel memory for 
> simplicity 
> (no need to explicitly map it for each different calling process - 
> saves time and 
> avoids an extra copy operation).

I think we will use the same as almost all other operating systems out 
there, which is 2 GB for the kernel, and about the same amount for 
userland apps.
I don't see a reason why we should change this - we are certainly not 
the place for database applications that could need such an amount of 
memory. That's what Solaris is good for, and even they normally have 
that 2/2 split (though you can change it there to 3/1 as well).

Adios...
   Axel.