[CentOS] cgroups not working?

[Kwan Lowe]

On Wed, Mar 13, 2013 at 10:10 PM, Dennis Jacobfeuerborn
<dennisml at conversis.de> wrote:
> Hi,
> I'm trying to use cgroups to limit the apache webserver but this doesn't
> seem to work as far as I can tell.
> I modified cgconfig.conf like this:
>
> group webserver {
>          cpu {
>                  cpu.shares="250";
>          }
> }

How many other groups do you have defined? IIRC, it was based on the
ratio of that share to the total. So if that's the only group defined,
it may end up getting all resources.

http://hydra.geht.net/tino/english/faq/debian/squeeze/cgroups/

This seems to indicate that is how it works..