diff options
author | Boris Burkov <boris@bur.io> | 2020-05-27 14:43:19 -0700 |
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committer | Tejun Heo <tj@kernel.org> | 2020-05-28 10:06:35 -0400 |
commit | 936f2a70f2077f64fab1dcb3eca71879e82ecd3f (patch) | |
tree | 7a649b1c8e4776ddbada58db00a69b56b9433942 /drivers/pci/ats.c | |
parent | 6b6ebb34744b21467aa01be7c53cc570fc41f70d (diff) |
cgroup: add cpu.stat file to root cgroup
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>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/pci/ats.c')
0 files changed, 0 insertions, 0 deletions