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From: SeongJae Park <sj@kernel.org>
Cc: SeongJae Park <sj@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Jonathan Corbet <corbet@lwn.net>,
	damon@lists.linux.dev, kernel-team@meta.com,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org
Subject: [RFC PATCH 11/11] Docs/admin-guide/mm/damon/lru_sort: document intervals autotuning
Date: Sat, 28 Jun 2025 09:51:44 -0700	[thread overview]
Message-ID: <20250628165144.55528-12-sj@kernel.org> (raw)
In-Reply-To: <20250628165144.55528-1-sj@kernel.org>

Document a newly added DAMON_LRU_SORT module parameter for using
monitoring intervals auto-tuning feature of DAMON.

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

diff --git a/Documentation/admin-guide/mm/damon/lru_sort.rst b/Documentation/admin-guide/mm/damon/lru_sort.rst
index ca4e071b3159..f9dfa8255dda 100644
--- a/Documentation/admin-guide/mm/damon/lru_sort.rst
+++ b/Documentation/admin-guide/mm/damon/lru_sort.rst
@@ -91,6 +91,17 @@ increases and decreases the effective level of the quota aiming the LRU
 
 Disabled by default.
 
+Auto-tune monitoring intervals
+------------------------------
+
+If this parameter is set as ``Y``, DAMON_LRU_SORT automatically tune 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 minimu, and 10 seconds in maximum.  Setting this as
+``Y`` disables the auto-tuning.
+
+Disabled by default.
+
 filter_young_pages
 ------------------
 
-- 
2.39.5

      parent reply	other threads:[~2025-06-28 16:51 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-28 16:51 [RFC PATCH 00/11] mm/damon: advance DAMOS-based LRU sorting SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 01/11] mm/damon/core: introduce [in]active memory ratio damos quota goal metric SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 02/11] mm/damon/sysfs-schemes: support DAMOS_QUOTA_[IN]ACTIVE_MEM_BP SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 03/11] Docs/mm/damon/design: document DAMOS_QUOTA_[IN]ACTIVE_MEM_BP SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 04/11] mm/damon/paddr: activate DAMOS_LRU_PRIO targets instead of marking accessed SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 05/11] mm/damon/lru_sort: consider age for quota prioritization SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 06/11] mm/damon/lru_sort: support young page filters SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 07/11] Docs/admin-guide/mm/damon/lru_sort: document filter_young_pages SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 08/11] mm/damon/lru_sort: support active:inactive memory ratio based auto-tuning SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 09/11] Docs/admin-guide/mm/damon/lru_sort: document active_mem_bp parameter SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 10/11] mm/damon/lru_sort: add monitoring intervals auto-tuning parameter SeongJae Park
2025-06-28 16:51 ` SeongJae Park [this message]

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