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Howlett" , David Hildenbrand , Jonathan Corbet , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Randy Dunlap , Shuah Khan , Suren Baghdasaryan , Vlastimil Babka , damon@lists.linux.dev, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 7/8] Docs/admin-guide/mm/damon/usage: update for quota goal complement file Date: Tue, 29 Sep 2026 01:01:10 -0700 Message-ID: <20260929080113.41708-8-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260929080113.41708-1-sj@kernel.org> References: <20260929080113.41708-1-sj@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 19CA8100007 X-Stat-Signature: 9xaxmj8spzsfajbbuoyhh7b8pq3gkjah X-Rspam-User: X-HE-Tag: 1790668898-156857 X-HE-Meta: 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 jWCymEYD mTg1+8/bp5wCiHcDbktVUqBExHu/yb1rhWyQ7BtaFC3rNoj4mDSbtL0vJOXFhkHCgMrmUhTlO992v4NwbbEQ/DmGZdD/9Khh6OV3oIKx6eqp45Zas7musupUpRf77MQWT+S6GY6vxb7KDhaXQgbECx8Kzjgl2Yn3K6mulk+deLr6iqATIoJndWod/WN0dmwQqE6T7TCa79xwMXrs79SmKmmPVA3iZICVdFhXkQDnVbXg8zmQfRMVqvrbHXFR0GxCC1GYa1IKlo58W7zFR1HYrTM7jx6V0P72OGxkPAANb78AC2TtdULo9ANYuVg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Update DAMON usage document for the newly added quota goal metric complement sysfs file. Signed-off-by: SJ Park --- Documentation/admin-guide/mm/damon/usage.rst | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst index ba4725544856..3d43954c7046 100644 --- a/Documentation/admin-guide/mm/damon/usage.rst +++ b/Documentation/admin-guide/mm/damon/usage.rst @@ -98,7 +98,8 @@ comma (","). │ │ │ │ │ │ │ fail_charge_num,fail_charge_denom │ │ │ │ │ │ │ │ weights/sz_permil,nr_accesses_permil,age_permil │ │ │ │ │ │ │ │ :ref:`goals `/nr_goals - │ │ │ │ │ │ │ │ │ 0/target_metric,target_value,current_value,nid,path + │ │ │ │ │ │ │ │ │ 0/target_metric,complement,target_value, + │ │ │ │ │ │ │ │ │ current_value,nid,path │ │ │ │ │ │ │ :ref:`watermarks `/metric,interval_us,high,mid,low │ │ │ │ │ │ │ :ref:`{core_,ops_,}filters `/nr_filters │ │ │ │ │ │ │ │ 0/type,matching,allow,memcg_path,addr_start,addr_end,damon_target_idx,min,max @@ -492,12 +493,12 @@ number (``N``) to the file creates the number of child directories named ``0`` to ``N-1``. Each directory represents each goal and current achievement. Among the multiple feedback, the best one is used. -Each goal directory contains five files, namely ``target_metric``, -``target_value``, ``current_value``, ``nid``, and ``path``. Users can set and -get the five parameters for the quota auto-tuning goals that specified on the -:ref:`design doc ` by writing to and -reading from each of the files. Because the kernel does not update -``current_value``, reading it only makes sense when ``target_metric`` is +Each goal directory contains six files, namely ``target_metric``, +``complement``, ``target_value``, ``current_value``, ``nid``, and ``path``. +Users can set and get the six parameters for the quota auto-tuning goals that +specified on the :ref:`design doc ` by +writing to and reading from each of the files. Because the kernel does not +update ``current_value``, reading it only makes sense when ``target_metric`` is ``user_input``. Note that users should further write ``commit_schemes_quota_goals`` to the ``state`` file of the :ref:`kdamond directory ` to pass the feedback to DAMON. -- 2.47.3