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Docs/admin-guide/mm/damon/lru_sort: document active_mem_bp parameter

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Document a newly added DAMON_LRU_SORT parameter for doing auto-tuning
aiming an active to inactive memory size ratio.

Link: https://lkml.kernel.org/r/20260113152717.70459-10-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Acked-by: wang lian <lianux.mm@gmail.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park
2026-01-13 07:27:14 -08:00
committed by Andrew Morton
parent 40d98d31cd
commit cdfca22d15
1 changed files with 12 additions and 0 deletions
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12
Documentation/admin-guide/mm/damon/lru_sort.rst
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@@ -79,6 +79,18 @@ of parametrs except ``enabled`` again. Once the re-reading is done, this
parameter is set as ``N``. If invalid parameters are found while the
re-reading, DAMON_LRU_SORT will be disabled.
active_mem_bp
-------------
Desired active to [in]active memory ratio in bp (1/10,000).
While keeping the caps that set by other quotas, DAMON_LRU_SORT automatically
increases and decreases the effective level of the quota aiming the LRU
[de]prioritizations of the hot and cold memory resulting in this active to
[in]active memory ratio. Value zero means disabling this auto-tuning feature.
Disabled by default.
filter_young_pages
------------------