Messages in this thread | | | Date | Thu, 28 May 2020 10:07:01 -0400 | From | Tejun Heo <> | Subject | Re: [PATCH v2 cgroup/for-5.8] cgroup: add cpu.stat file to root cgroup |
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On Wed, May 27, 2020 at 02:43:19PM -0700, Boris Burkov wrote: > Currently, the root cgroup does not have a cpu.stat file. Add one which > is consistent with /proc/stat to capture global cpu statistics that > might not fall under cgroup accounting. > > We haven't done this in the past because the data are already presented > in /proc/stat and we didn't want to add overhead from collecting root > cgroup stats when cgroups are configured, but no cgroups have been > created. > > By keeping the data consistent with /proc/stat, I think we avoid the > first problem, while improving the usability of cgroups stats. > We avoid the second problem by computing the contents of cpu.stat from > existing data collected for /proc/stat anyway. > > Signed-off-by: Boris Burkov <boris@bur.io> > Suggested-by: Tejun Heo <tj@kernel.org>
Applied to cgroup/for-5.8.
Thanks.
-- tejun
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