* [merged mm-stable] docs-admin-guide-mm-damon-usage-document-goal_tuner-sysfs-file.patch removed from -mm tree
@ 2026-03-29 0:41 Andrew Morton
0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2026-03-29 0:41 UTC (permalink / raw)
To: mm-commits, sj, akpm
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 3449 bytes --]
The quilt patch titled
Subject: Docs/admin-guide/mm/damon/usage: document goal_tuner sysfs file
has been removed from the -mm tree. Its filename was
docs-admin-guide-mm-damon-usage-document-goal_tuner-sysfs-file.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: SeongJae Park <sj@kernel.org>
Subject: Docs/admin-guide/mm/damon/usage: document goal_tuner sysfs file
Date: Mon, 9 Mar 2026 18:05:22 -0700
Update the DAMON usage document for the new sysfs file for the goal based
quota auto-tuning algorithm selection.
Link: https://lkml.kernel.org/r/20260310010529.91162-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
Documentation/admin-guide/mm/damon/usage.rst | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
--- a/Documentation/admin-guide/mm/damon/usage.rst~docs-admin-guide-mm-damon-usage-document-goal_tuner-sysfs-file
+++ a/Documentation/admin-guide/mm/damon/usage.rst
@@ -83,7 +83,7 @@ comma (",").
│ │ │ │ │ │ │ │ sz/min,max
│ │ │ │ │ │ │ │ nr_accesses/min,max
│ │ │ │ │ │ │ │ age/min,max
- │ │ │ │ │ │ │ :ref:`quotas <sysfs_quotas>`/ms,bytes,reset_interval_ms,effective_bytes
+ │ │ │ │ │ │ │ :ref:`quotas <sysfs_quotas>`/ms,bytes,reset_interval_ms,effective_bytes,goal_tuner
│ │ │ │ │ │ │ │ weights/sz_permil,nr_accesses_permil,age_permil
│ │ │ │ │ │ │ │ :ref:`goals <sysfs_schemes_quota_goals>`/nr_goals
│ │ │ │ │ │ │ │ │ 0/target_metric,target_value,current_value,nid,path
@@ -377,9 +377,9 @@ schemes/<N>/quotas/
The directory for the :ref:`quotas <damon_design_damos_quotas>` of the given
DAMON-based operation scheme.
-Under ``quotas`` directory, four files (``ms``, ``bytes``,
-``reset_interval_ms``, ``effective_bytes``) and two directories (``weights`` and
-``goals``) exist.
+Under ``quotas`` directory, five files (``ms``, ``bytes``,
+``reset_interval_ms``, ``effective_bytes`` and ``goal_tuner``) and two
+directories (``weights`` and ``goals``) exist.
You can set the ``time quota`` in milliseconds, ``size quota`` in bytes, and
``reset interval`` in milliseconds by writing the values to the three files,
@@ -390,6 +390,14 @@ apply the action to only up to ``bytes``
quota limits unless at least one :ref:`goal <sysfs_schemes_quota_goals>` is
set.
+You can set the goal-based effective quota auto-tuning algorithm to use, by
+writing the algorithm name to ``goal_tuner`` file. Reading the file returns
+the currently selected tuner algorithm. Refer to the design documentation of
+:ref:`automatic quota tuning goals <damon_design_damos_quotas_auto_tuning>` for
+the background design of the feature and the name of the selectable algorithms.
+Refer to :ref:`goals directory <sysfs_schemes_quota_goals>` for the goals
+setup.
+
The time quota is internally transformed to a size quota. Between the
transformed size quota and user-specified size quota, smaller one is applied.
Based on the user-specified :ref:`goal <sysfs_schemes_quota_goals>`, the
_
Patches currently in -mm which might be from sj@kernel.org are
mm-damon-sysfs-dealloc-repeat_call_control-if-damon_call-fails.patch
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2026-03-29 0:41 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-03-29 0:41 [merged mm-stable] docs-admin-guide-mm-damon-usage-document-goal_tuner-sysfs-file.patch removed from -mm tree Andrew Morton
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.