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Docs/ABI/damon: document 'schemes/<s>/tried_regions' sysfs directory

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Update DAMON ABI document for the 'tried_regions' directory of DAMON
sysfs interface.

Link: https://lkml.kernel.org/r/20221101220328.95765-9-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2022-11-01 22:03:28 +00:00 committed by Andrew Morton
parent 7f0a86f3c9
commit 1b0006daa3
1 changed files with 32 additions and 0 deletions
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32
Documentation/ABI/testing/sysfs-kernel-mm-damon
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@ -27,6 +27,10 @@ Description: Writing 'on' or 'off' to this file makes the kdamond starts or
makes the kdamond reads the user inputs in the sysfs files
except 'state' again. Writing 'update_schemes_stats' to the
file updates contents of schemes stats files of the kdamond.
Writing 'update_schemes_tried_regions' to the file updates
contents of 'tried_regions' directory of every scheme directory
of this kdamond. Writing 'clear_schemes_tried_regions' to the
file removes contents of the 'tried_regions' directory.
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/pid
Date: Mar 2022
@ -283,3 +287,31 @@ Date: Mar 2022
Contact: SeongJae Park <sj@kernel.org>
Description: Reading this file returns the number of the exceed events of
the scheme's quotas.
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/<R>/start
Date: Oct 2022
Contact: SeongJae Park <sj@kernel.org>
Description: Reading this file returns the start address of a memory region
that corresponding DAMON-based Operation Scheme's action has
tried to be applied.
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/<R>/end
Date: Oct 2022
Contact: SeongJae Park <sj@kernel.org>
Description: Reading this file returns the end address of a memory region
that corresponding DAMON-based Operation Scheme's action has
tried to be applied.
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/<R>/nr_accesses
Date: Oct 2022
Contact: SeongJae Park <sj@kernel.org>
Description: Reading this file returns the 'nr_accesses' of a memory region
that corresponding DAMON-based Operation Scheme's action has
tried to be applied.
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/<R>/age
Date: Oct 2022
Contact: SeongJae Park <sj@kernel.org>
Description: Reading this file returns the 'age' of a memory region that
corresponding DAMON-based Operation Scheme's action has tried
to be applied.