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-rw-r--r--Documentation/cgroup-v2.txt15
1 files changed, 5 insertions, 10 deletions
diff --git a/Documentation/cgroup-v2.txt b/Documentation/cgroup-v2.txt
index 0bbdc720dd7c..779211fbb69f 100644
--- a/Documentation/cgroup-v2.txt
+++ b/Documentation/cgroup-v2.txt
@@ -886,15 +886,6 @@ All cgroup core files are prefixed with "cgroup."
A dying cgroup can consume system resources not exceeding
limits, which were active at the moment of cgroup deletion.
- cpu.usage_usec
- CPU time consumed in the subtree.
-
- cpu.user_usec
- User CPU time consumed in the subtree.
-
- cpu.system_usec
- System CPU time consumed in the subtree.
-
Controllers
===========
@@ -915,12 +906,16 @@ All time durations are in microseconds.
cpu.stat
A read-only flat-keyed file which exists on non-root cgroups.
+ This file exists whether the controller is enabled or not.
- It reports the following six stats:
+ It always reports the following three stats:
- usage_usec
- user_usec
- system_usec
+
+ and the following three when the controller is enabled:
+
- nr_periods
- nr_throttled
- throttled_usec