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Docs/admin-guide/mm/damon/usage: document addr_unit file

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Document addr_unit DAMON sysfs file on DAMON usage document.

Link: https://lkml.kernel.org/r/20250828171242.59810-10-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Quanmin Yan <yanquanmin1@huawei.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: ze zuo <zuoze1@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park
2025-08-28 10:12:40 -07:00
committed by Andrew Morton
parent 7b06c471af
commit e0c725455f
2 changed files with 9 additions and 4 deletions
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11
Documentation/admin-guide/mm/damon/usage.rst
View File

@@ -61,7 +61,7 @@ comma (",").
│ :ref:`kdamonds <sysfs_kdamonds>`/nr_kdamonds
│ │ :ref:`0 <sysfs_kdamond>`/state,pid,refresh_ms
│ │ │ :ref:`contexts <sysfs_contexts>`/nr_contexts
│ │ │ │ :ref:`0 <sysfs_context>`/avail_operations,operations
│ │ │ │ :ref:`0 <sysfs_context>`/avail_operations,operations,addr_unit
│ │ │ │ │ :ref:`monitoring_attrs <sysfs_monitoring_attrs>`/
│ │ │ │ │ │ intervals/sample_us,aggr_us,update_us
│ │ │ │ │ │ │ intervals_goal/access_bp,aggrs,min_sample_us,max_sample_us
@@ -188,9 +188,9 @@ details). At the moment, only one context per kdamond is supported, so only
contexts/<N>/
-------------
In each context directory, two files (``avail_operations`` and ``operations``)
and three directories (``monitoring_attrs``, ``targets``, and ``schemes``)
exist.
In each context directory, three files (``avail_operations``, ``operations``
and ``addr_unit``) and three directories (``monitoring_attrs``, ``targets``,
and ``schemes``) exist.
DAMON supports multiple types of :ref:`monitoring operations
<damon_design_configurable_operations_set>`, including those for virtual address
@@ -205,6 +205,9 @@ You can set and get what type of monitoring operations DAMON will use for the
context by writing one of the keywords listed in ``avail_operations`` file and
reading from the ``operations`` file.
``addr_unit`` file is for setting and getting the :ref:`address unit
<damon_design_addr_unit>` parameter of the operations set.
.. _sysfs_monitoring_attrs:
contexts/<N>/monitoring_attrs/

2
Documentation/mm/damon/design.rst
View File

@@ -135,6 +135,8 @@ the interference is the responsibility of sysadmins. However, it solves the
conflict with the reclaim logic using ``PG_idle`` and ``PG_young`` page flags,
as Idle page tracking does.
.. _damon_design_addr_unit:
Address Unit
------------