[RFC PATCH 0/2] mm/damon/reclaim: support monitoring intervals auto-tuning

[RFC PATCH 0/2] mm/damon/reclaim: support monitoring intervals auto-tuning

[SeongJae Park]

The monitoring intervals auto-tuning feature of DAMON has proven to be
useful in multiple environments.  Add a new DAMON_RECLAIM parameter for
supporting the feature, and update the document for the new parameter.

SeongJae Park (2):
  mm/damon/reclaim: add autotune_monitoring_intervals parameter
  Docs/admin-guide/mm/damon/reclaim: update for
    autotune_monitoring_intervals

 .../admin-guide/mm/damon/reclaim.rst          | 11 +++++++
 mm/damon/reclaim.c                            | 33 ++++++++++++++++---
 2 files changed, 39 insertions(+), 5 deletions(-)


base-commit: 02f9b1619307bbcf7028704a50f6b31909f360ce
-- 
2.47.3

[RFC PATCH 2/2] Docs/admin-guide/mm/damon/reclaim: update for autotune_monitoring_intervals

[SeongJae Park]

Update DAMON_RECLAIM usage document for the newly added monitoring
intervals auto-tuning enablement parameter.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
 Documentation/admin-guide/mm/damon/reclaim.rst | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Documentation/admin-guide/mm/damon/reclaim.rst b/Documentation/admin-guide/mm/damon/reclaim.rst
index 01a34c215b66f..b14a065586271 100644
--- a/Documentation/admin-guide/mm/damon/reclaim.rst
+++ b/Documentation/admin-guide/mm/damon/reclaim.rst
@@ -85,6 +85,17 @@ identifies the region as cold, and reclaims it.
 
 120 seconds by default.
 
+autotune_monitoring_intervals
+-----------------------------
+
+If this parameter is set as ``Y``, DAMON_RECLAIM automatically tunes DAMON's
+sampling and aggregation intervals.  The auto-tuning aims to capture meaningful
+amount of access events in each DAMON-snapshot, while keeping the sampling
+interval 5 milliseconds in minimum, and 10 seconds in maximum.  Setting this as
+``N`` disables the auto-tuning.
+
+Disabled by default.
+
 quota_ms
 --------
 
-- 
2.47.3