memrlimit controller merge to mainline

[KAMEZAWA Hiroyuki]

On Wed, 30 Jul 2008 10:17:19 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu at jp.fujitsu.com> wrote:

> A story I talked is based on the assumption that there may be not enough swap
> space against memory. We can ask cutomers to equip tons of swap when 
> memory is huge. BTW, what is the maximum swap size now ?
> Can we extend it if it's small ?
> 

I'm sorry for a noise. (maybe we can use tera-bytes in 64bit land.)

BTW, Redhat's RHEL instlation guide says

M=memory size
S=swap size

If M < 2G
   S = M * 2
else
   S = M + 2

as recomended value (for RHEL5). And maybe other guides will say the same
kind of....

Maybe we can  have enough swap space in usual case. Hmm.

Thanks,
-Kame