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-rw-r--r--Documentation/admin-guide/sysctl/vm.rst3
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst
index 003d5cc3751b..5e795202111f 100644
--- a/Documentation/admin-guide/sysctl/vm.rst
+++ b/Documentation/admin-guide/sysctl/vm.rst
@@ -118,7 +118,8 @@ compaction_proactiveness
This tunable takes a value in the range [0, 100] with a default value of
20. This tunable determines how aggressively compaction is done in the
-background. Setting it to 0 disables proactive compaction.
+background. Write of a non zero value to this tunable will immediately
+trigger the proactive compaction. Setting it to 0 disables proactive compaction.
Note that compaction has a non-trivial system-wide impact as pages
belonging to different processes are moved around, which could also lead