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| author |   SeongJae Park <sj@kernel.org> | 2025-01-06 11:33:55 -0800 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2025-01-25 20:22:27 -0800 |
| commit | 6bbdb28d88bacf12102d5cccf878cfc6c432aa20 (patch) | |
| tree | 4bc440edfd2c998de7469517b12949cba55900a2 | |
| parent | Docs/mm/damon/design: document sz_ops_filter_passed (diff) | |
| download | wireguard-linux-6bbdb28d88bacf12102d5cccf878cfc6c432aa20.tar.xz wireguard-linux-6bbdb28d88bacf12102d5cccf878cfc6c432aa20.zip | |
Docs/admin-guide/mm/damon/usage: document sz_ops_filter_passed
Document the new per-scheme operations set layer-handled DAMOS filters
passed bytes statistic file on DAMON sysfs interface usage document.
Link: https://lkml.kernel.org/r/20250106193401.109161-11-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | Documentation/admin-guide/mm/damon/usage.rst | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst index af70f7244700..179a9060a32e 100644 --- a/Documentation/admin-guide/mm/damon/usage.rst +++ b/Documentation/admin-guide/mm/damon/usage.rst @@ -90,7 +90,7 @@ comma (","). │ │ │ │ │ │ │ :ref:`watermarks <sysfs_watermarks>`/metric,interval_us,high,mid,low │ │ │ │ │ │ │ :ref:`filters <sysfs_filters>`/nr_filters │ │ │ │ │ │ │ │ 0/type,matching,memcg_id - │ │ │ │ │ │ │ :ref:`stats <sysfs_schemes_stats>`/nr_tried,sz_tried,nr_applied,sz_applied,qt_exceeds + │ │ │ │ │ │ │ :ref:`stats <sysfs_schemes_stats>`/nr_tried,sz_tried,nr_applied,sz_applied,sz_ops_filter_passed,qt_exceeds │ │ │ │ │ │ │ :ref:`tried_regions <sysfs_schemes_tried_regions>`/total_bytes │ │ │ │ │ │ │ │ 0/start,end,nr_accesses,age │ │ │ │ │ │ │ │ ... @@ -454,18 +454,16 @@ difference is applied to :ref:`stats <damos_stats>` and schemes/<N>/stats/ ------------------ -DAMON counts the total number and bytes of regions that each scheme is tried to -be applied, the two numbers for the regions that each scheme is successfully -applied, and the total number of the quota limit exceeds. This statistics can -be used for online analysis or tuning of the schemes. Refer to :ref:`design -doc <damon_design_damos_stat>` for more details about the stats. +DAMON counts statistics for each scheme. This statistics can be used for +online analysis or tuning of the schemes. Refer to :ref:`design doc +<damon_design_damos_stat>` for more details about the stats. The statistics can be retrieved by reading the files under ``stats`` directory -(``nr_tried``, ``sz_tried``, ``nr_applied``, ``sz_applied``, and -``qt_exceeds``), respectively. The files are not updated in real time, so you -should ask DAMON sysfs interface to update the content of the files for the -stats by writing a special keyword, ``update_schemes_stats`` to the relevant -``kdamonds/<N>/state`` file. +(``nr_tried``, ``sz_tried``, ``nr_applied``, ``sz_applied``, +``sz_ops_filter_passed``, and ``qt_exceeds``), respectively. The files are not +updated in real time, so you should ask DAMON sysfs interface to update the +content of the files for the stats by writing a special keyword, +``update_schemes_stats`` to the relevant ``kdamonds/<N>/state`` file. .. _sysfs_schemes_tried_regions: |