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From: SeongJae Park <sj@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: SeongJae Park <sj@kernel.org>, Jonathan Corbet <corbet@lwn.net>,
	damon@lists.linux.dev, linux-mm@kvack.org,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 7/9] Docs/mm/damon/design: document DAMOS quota auto tuning
Date: Thu, 30 Nov 2023 02:36:50 +0000	[thread overview]
Message-ID: <20231130023652.50284-8-sj@kernel.org> (raw)
In-Reply-To: <20231130023652.50284-1-sj@kernel.org>

Document the DAMOS quota auto tuning feature on the design document.

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

diff --git a/Documentation/mm/damon/design.rst b/Documentation/mm/damon/design.rst
index 1f7e0586b5fa..947c9df6cd33 100644
--- a/Documentation/mm/damon/design.rst
+++ b/Documentation/mm/damon/design.rst
@@ -346,6 +346,17 @@ the weight will be respected are up to the underlying prioritization mechanism
 implementation.
 
 
+Aim-oriented Feedback-driven Auto-tuning
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Automatic feedback-driven quota tuning.  Instead of setting the absolute quota
+value, users can repeatedly provide numbers representing how much of their goal
+for the scheme is achieved as feedback.  DAMOS then automatically tunes the
+aggressiveness (the quota) of the corresponding scheme.  For example, if DAMOS
+is under achieving the goal, DAMOS automatically increases the quota.  If DAMOS
+is over achieving the goal, it decreases the quota.
+
+
 .. _damon_design_damos_watermarks:
 
 Watermarks
-- 
2.34.1


  parent reply	other threads:[~2023-11-30  2:37 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-30  2:36 [PATCH 0/9] mm/damon: let users feed and tame/auto-tune DAMOS SeongJae Park
2023-11-30  2:36 ` [PATCH 1/9] mm/damon/core: implement goal-oriented feedback-driven quota auto-tuning SeongJae Park
2023-11-30  2:36 ` [PATCH 2/9] mm/damon/sysfs-schemes: implement files for scheme quota goals setup SeongJae Park
2023-11-30  2:36 ` [PATCH 3/9] mm/damon/sysfs-schemes: commit damos quota goals user input to DAMOS SeongJae Park
2023-11-30  2:36 ` [PATCH 4/9] mm/damon/sysfs-schemes: implement a command for scheme quota goals only commit SeongJae Park
2023-11-30  2:36 ` [PATCH 5/9] mm/damon/core-test: add a unit test for the feedback loop algorithm SeongJae Park
2023-11-30  2:36 ` [PATCH 6/9] selftests/damon: test quota goals directory SeongJae Park
2023-11-30  2:36 ` SeongJae Park [this message]
2023-11-30  2:36 ` [PATCH 8/9] Docs/ABI/damon: document DAMOS quota goals SeongJae Park
2023-11-30  2:36 ` [PATCH 9/9] Docs/admin-guide/mm/damon/usage: document for " SeongJae Park
2023-11-30 22:22 ` [PATCH 0/9] mm/damon: let users feed and tame/auto-tune DAMOS Andrew Morton

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