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-rw-r--r--Documentation/cgroup-v2.txt36
1 files changed, 12 insertions, 24 deletions
diff --git a/Documentation/cgroup-v2.txt b/Documentation/cgroup-v2.txt
index 3f8216912df0..0bbdc720dd7c 100644
--- a/Documentation/cgroup-v2.txt
+++ b/Documentation/cgroup-v2.txt
@@ -902,10 +902,6 @@ Controllers
CPU
---
-.. note::
-
- The interface for the cpu controller hasn't been merged yet
-
The "cpu" controllers regulates distribution of CPU cycles. This
controller implements weight and absolute bandwidth limit models for
normal scheduling policy and absolute bandwidth allocation model for
@@ -935,6 +931,18 @@ All time durations are in microseconds.
The weight in the range [1, 10000].
+ cpu.weight.nice
+ A read-write single value file which exists on non-root
+ cgroups. The default is "0".
+
+ The nice value is in the range [-20, 19].
+
+ This interface file is an alternative interface for
+ "cpu.weight" and allows reading and setting weight using the
+ same values used by nice(2). Because the range is smaller and
+ granularity is coarser for the nice values, the read value is
+ the closest approximation of the current weight.
+
cpu.max
A read-write two value file which exists on non-root cgroups.
The default is "max 100000".
@@ -947,26 +955,6 @@ All time durations are in microseconds.
$PERIOD duration. "max" for $MAX indicates no limit. If only
one number is written, $MAX is updated.
- cpu.rt.max
- .. note::
-
- The semantics of this file is still under discussion and the
- interface hasn't been merged yet
-
- A read-write two value file which exists on all cgroups.
- The default is "0 100000".
-
- The maximum realtime runtime allocation. Over-committing
- configurations are disallowed and process migrations are
- rejected if not enough bandwidth is available. It's in the
- following format::
-
- $MAX $PERIOD
-
- which indicates that the group may consume upto $MAX in each
- $PERIOD duration. If only one number is written, $MAX is
- updated.
-
Memory
------