From 0972913f9673b13f18c9d72199e25ae07cc1876b Mon Sep 17 00:00:00 2001 From: SeongJae Park Date: Thu, 30 Nov 2023 02:36:51 +0000 Subject: Docs/ABI/damon: document DAMOS quota goals Update DAMON ABI document for the newly added DAMON sysfs files and inputs for DAMOS quota goals. Link: https://lkml.kernel.org/r/20231130023652.50284-9-sj@kernel.org Signed-off-by: SeongJae Park Cc: Brendan Higgins Cc: David Gow Cc: Jonathan Corbet Cc: Shuah Khan Signed-off-by: Andrew Morton --- Documentation/ABI/testing/sysfs-kernel-mm-damon | 33 ++++++++++++++++++++----- 1 file changed, 27 insertions(+), 6 deletions(-) (limited to 'Documentation/ABI') diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-damon b/Documentation/ABI/testing/sysfs-kernel-mm-damon index b35649a46a2f..bfa5b8288d8d 100644 --- a/Documentation/ABI/testing/sysfs-kernel-mm-damon +++ b/Documentation/ABI/testing/sysfs-kernel-mm-damon @@ -25,12 +25,14 @@ Description: Writing 'on' or 'off' to this file makes the kdamond starts or stops, respectively. Reading the file returns the keywords based on the current status. Writing 'commit' to this file 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 'update_schemes_tried_bytes' to the - file updates only '.../tried_regions/total_bytes' files of this + except 'state' again. Writing 'commit_schemes_quota_goals' to + this file makes the kdamond reads the quota goal files 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 'update_schemes_tried_bytes' to the file + updates only '.../tried_regions/total_bytes' files of this kdamond. Writing 'clear_schemes_tried_regions' to the file removes contents of the 'tried_regions' directory. @@ -212,6 +214,25 @@ Contact: SeongJae Park Description: Writing to and reading from this file sets and gets the quotas charge reset interval of the scheme in milliseconds. +What: /sys/kernel/mm/damon/admin/kdamonds//contexts//schemes//quotas/goals/nr_goals +Date: Nov 2023 +Contact: SeongJae Park +Description: Writing a number 'N' to this file creates the number of + directories for setting automatic tuning of the scheme's + aggressiveness named '0' to 'N-1' under the goals/ directory. + +What: /sys/kernel/mm/damon/admin/kdamonds//contexts//schemes//quotas/goals//target_value +Date: Nov 2023 +Contact: SeongJae Park +Description: Writing to and reading from this file sets and gets the target + value of the goal metric. + +What: /sys/kernel/mm/damon/admin/kdamonds//contexts//schemes//quotas/goals//current_value +Date: Nov 2023 +Contact: SeongJae Park +Description: Writing to and reading from this file sets and gets the current + value of the goal metric. + What: /sys/kernel/mm/damon/admin/kdamonds//contexts//schemes//quotas/weights/sz_permil Date: Mar 2022 Contact: SeongJae Park -- cgit v1.2.3