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-rw-r--r--Documentation/cgroups/cpuacct.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/cgroups/cpuacct.txt b/Documentation/cgroups/cpuacct.txt
index 600d2d0b85f0..84e471b612eb 100644
--- a/Documentation/cgroups/cpuacct.txt
+++ b/Documentation/cgroups/cpuacct.txt
@@ -44,6 +44,9 @@ cpuacct.cpufreq file gives CPU time (in nanoseconds) spent at each CPU
frequency. Platform hooks must be implemented inorder to properly track
time at each CPU frequency.
+cpuacct.power file gives CPU power consumed (in milliWatt seconds). Platform
+must provide and implement power callback functions.
+
cpuacct controller uses percpu_counter interface to collect user and
system times. This has two side effects: