Re: [PATCH v3 1/2] cgroup: Show # of subsystem CSSes in cgroup.stat

Tejun Heo
2024-07-10T21:59:13Z

Hello,

On Wed, Jul 10, 2024 at 02:23:52PM -0400, Waiman Long wrote:
> With this patch applied, a sample output from root cgroup.stat file
> was shown below.
>
> nr_descendants 54
> nr_dying_descendants 44
> nr_cpuset 1
> nr_cpu 40
> nr_io 40
> nr_memory 54
> nr_dying_memory 44
> nr_perf_event 55
> nr_hugetlb 1
> nr_pids 54
> nr_rdma 1
> nr_misc 1

So, css may be too specific a name but this looks a bit disorganized. How
about using controller as the common prefix? Maybe something like:

nr_controllers_cpu 40
nr_controllers_io 40
nr_controllers_memory 54
nr_controller_perf_event 55
...
nr_dying_controllers_memory 44

If controllers is too long, we can shorten it somehow or use subsys, maybe?

Thanks.

--
tejun