The patch titled
Subject: Docs/admin-guide/mm/damon/usage: update for DAMON monitoring target type DAMOS filter
has been added to the -mm mm-unstable branch. Its filename is
docs-admin-guide-mm-damon-usage-update-for-damon-monitoring-target-type-damos-filter.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/docs-admin-guide-mm-damon-usage-update-for-damon-monitoring-target-type-damos-filter.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: SeongJae Park <sj@xxxxxxxxxx>
Subject: Docs/admin-guide/mm/damon/usage: update for DAMON monitoring target type DAMOS filter
Date: Wed, 2 Aug 2023 21:43:12 +0000
Update DAMON usage document for newly added DAMON monitoring target type
DAMOS filter.
Link: https://lkml.kernel.org/r/20230802214312.110532-14-sj@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Cc: Brendan Higgins <brendanhiggins@xxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/admin-guide/mm/damon/usage.rst | 37 +++++++++--------
1 file changed, 20 insertions(+), 17 deletions(-)
--- a/Documentation/admin-guide/mm/damon/usage.rst~docs-admin-guide-mm-damon-usage-update-for-damon-monitoring-target-type-damos-filter
+++ a/Documentation/admin-guide/mm/damon/usage.rst
@@ -363,18 +363,21 @@ number (``N``) to the file creates the n
to ``N-1``. Each directory represents each filter. The filters are evaluated
in the numeric order.
-Each filter directory contains five files, namely ``type``, ``matcing``,
-``memcg_path``, ``addr_start``, and ``addr_end``. To ``type`` file, you can
-write one of three special keywords: ``anon`` for anonymous pages, ``memcg``
-for specific memory cgroup, or ``addr`` for specific address range (an
-open-ended interval) filtering. In case of the memory cgroup filtering, you
-can specify the memory cgroup of the interest by writing the path of the memory
-cgroup from the cgroups mount point to ``memcg_path`` file. In case of the
-address range filtering, you can specify the start and end address of the range
-to ``addr_start`` and ``addr_end`` files, respectively. You can write ``Y`` or
-``N`` to ``matching`` file to filter out pages that does or does not match to
-the type, respectively. Then, the scheme's action will not be applied to the
-pages that specified to be filtered out.
+Each filter directory contains six files, namely ``type``, ``matcing``,
+``memcg_path``, ``addr_start``, ``addr_end``, and ``target_idx``. To ``type``
+file, you can write one of four special keywords: ``anon`` for anonymous pages,
+``memcg`` for specific memory cgroup, ``addr`` for specific address range (an
+open-ended interval), or ``target`` for specific DAMON monitoring target
+filtering. In case of the memory cgroup filtering, you can specify the memory
+cgroup of the interest by writing the path of the memory cgroup from the
+cgroups mount point to ``memcg_path`` file. In case of the address range
+filtering, you can specify the start and end address of the range to
+``addr_start`` and ``addr_end`` files, respectively. For the DAMON monitoring
+target filtering, you can specify the index of the target between the list of
+the DAMON context's monitoring targets list to ``target_idx`` file. You can
+write ``Y`` or ``N`` to ``matching`` file to filter out pages that does or does
+not match to the type, respectively. Then, the scheme's action will not be
+applied to the pages that specified to be filtered out.
For example, below restricts a DAMOS action to be applied to only non-anonymous
pages of all memory cgroups except ``/having_care_already``.::
@@ -391,11 +394,11 @@ pages of all memory cgroups except ``/ha
Note that ``anon`` and ``memcg`` filters are currently supported only when
``paddr`` `implementation <sysfs_contexts>` is being used.
-Also, memory regions that are filtered out by ``addr`` filters are not counted
-as the scheme has tried to those, while regions that filtered out by other type
-filters are counted as the scheme has tried to. The difference is applied to
-:ref:`stats <damos_stats>` and :ref:`tried regions
-<sysfs_schemes_tried_regions>`.
+Also, memory regions that are filtered out by ``addr`` or ``target`` filters
+are not counted as the scheme has tried to those, while regions that filtered
+out by other type filters are counted as the scheme has tried to. The
+difference is applied to :ref:`stats <damos_stats>` and
+:ref:`tried regions <sysfs_schemes_tried_regions>`.
.. _sysfs_schemes_stats:
_
Patches currently in -mm which might be from sj@xxxxxxxxxx are
mm-damon-core-initialize-damo_filter-list-from-damos_new_filter.patch
mm-damon-core-test-add-a-test-for-damos_new_filter.patch
mm-damon-sysfs-schemes-implement-damos-tried-total-bytes-file.patch
mm-damon-sysfs-implement-a-command-for-updating-only-schemes-tried-total-bytes.patch
selftests-damon-sysfs-test-tried_regions-total_bytes-file.patch
docs-abi-damon-update-for-tried_regions-total_bytes.patch
docs-admin-guide-mm-damon-usage-update-for-tried_regions-total_bytes.patch
mm-damon-core-introduce-address-range-type-damos-filter.patch
mm-damon-sysfs-schemes-support-address-range-type-damos-filter.patch
mm-damon-core-test-add-a-unit-test-for-__damos_filter_out.patch
selftests-damon-sysfs-test-address-range-damos-filter.patch
docs-mm-damon-design-update-for-address-range-filters.patch
docs-abi-damon-update-for-address-range-damos-filter.patch
docs-admin-guide-mm-damon-usage-update-for-address-range-type-damos-filter.patch
mm-damon-core-implement-target-type-damos-filter.patch
mm-damon-sysfs-schemes-support-target-damos-filter.patch
selftests-damon-sysfs-test-damon_target-filter.patch
docs-mm-damon-design-update-for-damon-monitoring-target-type-damos-filter.patch
docs-abi-damon-update-for-damon-monitoring-target-type-damos-filter.patch
docs-admin-guide-mm-damon-usage-update-for-damon-monitoring-target-type-damos-filter.patch
