Re: [Q] kernel vs user memory (how to get more kernel mem)

[Eric W. Biederman]

Till Immanuel Patzschke <[e-mail]> writes:

> Hi,
> 
> another simple (?) question - sorry for asking.  There seems to be some
> (fixed?) ratio user ./. kernel memory.  How do I change the amount of kernel
> memory.  I got a reply telling the std ratio is 3:1 - where/how do I change it?
> Thanks for the help,

Hmm.  There is a fixed ration of the amount of virtual address space
with each user space process having 3GB of virutal address space and
the kernel having 1GB.

But since the kernel implements paging the kernel can use all of the
RAM in the system.  While often times user space applications don't
haven't implemented the logic to use it all.

So for a good answer we need to know your application and why it is a
concern.

Eric