Re: anon_vma RFC2

Andrea Arcangeli
2004-03-12T20:31:31Z

On Fri, Mar 12, 2004 at 02:06:17PM -0500, Rik van Riel wrote:
> On Fri, 12 Mar 2004, Chris Friesen wrote:
>
> > What happens when you have more than PAGE_SIZE processes running?
>
> Forked off the same process ?
> Without doing an exec ?
> On a 32 bit system ?
>
> You'd probably run out of space to put the VMAs,
> mm_structs and pgds long before reaching this point ...

7.5k users are being reached in a real workload with around 2gigs mapped
per process and with tons of vma per process. with 2.6 and faster cpus
I hope to go even further.