Messages in this thread | | | Date | Mon, 12 Nov 2007 23:10:11 -0800 | From | "Paul Menage" <> | Subject | Re: Revert for cgroups CPU accounting subsystem patch |
| |
On Nov 12, 2007 11:00 PM, Balbir Singh <balbir@linux.vnet.ibm.com> wrote: > > Right now, one of the limitations of the CPU controller is that > the moment you create another control group, the bandwidth gets > divided by the default number of shares. We can't create groups > just for monitoring.
Could we get around this with, say, a flag that always treats a CFS schedulable entity as having a weight equal to the number of runnable tasks in it? So CPU bandwidth would be shared between groups in proportion to the number of runnable tasks, which would distribute the cycles approximately equivalently to them all being separate schedulable entities.
> cpu_acct fills this gap.
Agreed, but not in the right way IMO.
Paul - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |