From: SeongJae Park <sj@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: SeongJae Park <sj@kernel.org>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
David Hildenbrand <david@redhat.com>,
Jonathan Corbet <corbet@lwn.net>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
Michal Hocko <mhocko@suse.com>, Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Vlastimil Babka <vbabka@suse.cz>,
damon@lists.linux.dev, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH 09/10] Docs/admin-guide/mm/damon/usage: document DAMOS quota goal path file
Date: Fri, 17 Oct 2025 14:27:01 -0700 [thread overview]
Message-ID: <20251017212706.183502-10-sj@kernel.org> (raw)
In-Reply-To: <20251017212706.183502-1-sj@kernel.org>
A new DAMON sysfs interface file, namely 'path' has been added under
DAMOS quota goal directory, for specifying the cgroup for
DAMOS_QUOTA_NODE_MEMCG_{USED,FREE}_BP metrics. Document it on the usage
document.
Signed-off-by: SeongJae Park <sj@kernel.org>
---
Documentation/admin-guide/mm/damon/usage.rst | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst
index eae534bc1bee..98958975604d 100644
--- a/Documentation/admin-guide/mm/damon/usage.rst
+++ b/Documentation/admin-guide/mm/damon/usage.rst
@@ -81,7 +81,7 @@ comma (",").
│ │ │ │ │ │ │ :ref:`quotas <sysfs_quotas>`/ms,bytes,reset_interval_ms,effective_bytes
│ │ │ │ │ │ │ │ weights/sz_permil,nr_accesses_permil,age_permil
│ │ │ │ │ │ │ │ :ref:`goals <sysfs_schemes_quota_goals>`/nr_goals
- │ │ │ │ │ │ │ │ │ 0/target_metric,target_value,current_value,nid
+ │ │ │ │ │ │ │ │ │ 0/target_metric,target_value,current_value,nid,path
│ │ │ │ │ │ │ :ref:`watermarks <sysfs_watermarks>`/metric,interval_us,high,mid,low
│ │ │ │ │ │ │ :ref:`{core_,ops_,}filters <sysfs_filters>`/nr_filters
│ │ │ │ │ │ │ │ 0/type,matching,allow,memcg_path,addr_start,addr_end,target_idx,min,max
@@ -402,9 +402,9 @@ 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 four files, namely ``target_metric``,
-``target_value``, ``current_value`` and ``nid``. Users can set and get the
-four parameters for the quota auto-tuning goals that specified on the
+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 <damon_design_damos_quotas_auto_tuning>` by writing to and
reading from each of the files. Note that users should further write
``commit_schemes_quota_goals`` to the ``state`` file of the :ref:`kdamond
--
2.47.3
next prev parent reply other threads:[~2025-10-17 21:27 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-17 21:26 [PATCH 00/10] mm/damon: allow DAMOS auto-tuned for per-memcg per-node memory usage SeongJae Park
2025-10-17 21:26 ` [PATCH 01/10] mm/damon: document damos_quota_goal->nid use case SeongJae Park
2025-10-17 21:26 ` [PATCH 02/10] mm/damon: add DAMOS quota goal type for per-memcg per-node memory usage SeongJae Park
2025-10-17 21:26 ` [PATCH 03/10] mm/damon/core: implement DAMOS_QUOTA_NODE_MEMCG_USED_BP SeongJae Park
2025-10-17 21:26 ` [PATCH 04/10] mm/damon/sysfs-schemes: implement path file under quota goal directory SeongJae Park
2025-10-17 21:26 ` [PATCH 05/10] mm/damon/sysfs-schemes: support DAMOS_QUOTA_NODE_MEMCG_USED_BP SeongJae Park
2025-10-17 21:26 ` [PATCH 06/10] mm/damon/core: add DAMOS quota gaol metric for per-memcg per-numa free memory SeongJae Park
2025-10-17 21:26 ` [PATCH 07/10] mm/damon/sysfs-schemes: support DAMOS_QUOTA_NODE_MEMCG_FREE_BP SeongJae Park
2025-10-17 21:27 ` [PATCH 08/10] Docs/mm/damon/design: document DAMOS_QUOTA_NODE_MEMCG_{USED,FREE}_BP SeongJae Park
2025-10-17 21:27 ` SeongJae Park [this message]
2025-10-17 21:27 ` [PATCH 10/10] Docs/ABI/damon: document DAMOS quota goal path file SeongJae Park
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