[systemd-devel] [lennart at kemper.freedesktop.org: [systemd-commits] src/pam-module.c]

[Lennart Poettering]

On Mon, 14.02.11 11:12, fykcee1 at gmail.com (fykcee1 at gmail.com) wrote:

> Hi Lennart,
> Thanks for the explanation.

Heya,

> 
> IMHO, To re-enable user session 'cpu' sorting:
> a) Desktop distributions disable GROUP_RT in the kernel, then no
> rt_bandwidth, all RT-apps can be fully administrated under rtkit.

We actually want to allow people to use the RT limiting features, so I
think this option should be left on.
> 
> Or b) cpu cgroup controller should default make sub-cgroups share
> rt_bandwidth with their parent.
> Internally, kernel uses two separate hierarchies for NORMAL and RT
> processes, current logic should be changed as: a new cgroup with a cpu
> controller will add a new level in 'NORMAL hierarchy', but not touch
> 'RThierarchy' unless set sched_rt_runtime_us.

This is more or less what I was asking the kernel folks for. Dhaval, any
news?

Lennart

-- 
Lennart Poettering - Red Hat, Inc.