Commit Graph

77 Commits

Author SHA1 Message Date
SeongJae Park
e85e965bdb Docs/admin-guide/mm/damon/usage: document refresh_ms file
Document the new DAMON sysfs file, refresh_ms, on the usage document.

Link: https://lkml.kernel.org/r/20250717055448.56976-4-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>
2025-07-24 19:12:33 -07:00
SeongJae Park
3a4785c2d3 Docs/admin-guide/mm/damon/usage: document dests directory
Document the newly added DAMOS action destination directory of the DAMON
sysfs interface on the usage document.

Link: https://lkml.kernel.org/r/20250709005952.17776-7-bijan311@gmail.com
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Bijan Tabatabai <bijantabatab@micron.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ravi Shankar Jonnalagadda <ravis.opensrc@micron.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-07-19 18:59:49 -07:00
SeongJae Park
a7bb1e7545 Docs/admin-guide/mm/damon/usage: document 'nid' file
Add description of 'nid' file, which is optionally used for specific DAMOS
quota goal metrics such as node_mem_{used,free}_bp on DAMON usage
document.

Link: https://lkml.kernel.org/r/20250420194030.75838-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Yunjeong Mun <yunjeong.mun@sk.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-05-12 23:50:30 -07:00
SeongJae Park
114b480877 Docs/admin-guide/mm/damon/usage: update for {core,ops}_filters directories
Document {core,ops}_filters directories on usage document.

Link: https://lkml.kernel.org/r/20250305222733.59089-9-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>
2025-03-17 22:06:50 -07:00
SeongJae Park
b243d666d1 Docs/admin-guide/mm/damon/usage: add intervals_goal directory on the hierarchy
Document DAMON sysfs interface usage for DAMON sampling and aggregation
intervals auto-tuning.

Link: https://lkml.kernel.org/r/20250303221726.484227-9-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>
2025-03-17 00:05:34 -07:00
SeongJae Park
0f28583b28 Docs/damon: move DAMOS filter type names and meaning to design doc
DAMON sysfs usage doc is describing DAMOS filter type names and their
meanings in short.  The design doc is providing the short meaning and
detailed descriptions, too.  This is unnecessary duplicates and confuses
where to document new DAMOS filter types and features.  Move the details
from usage to design doc.

Link: https://lkml.kernel.org/r/20250218223708.53437-4-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>
2025-03-16 22:06:24 -07:00
Usama Arif
4ddb209268 Docs/admin-guide/mm/damon/usage: document hugepage_size filter type
This includes both the 'hugepage_size' filter type and the min/max files
used to decide range of sizes to filter on.

Link: https://lkml.kernel.org/r/20250211124437.278873-5-usamaarif642@gmail.com
Signed-off-by: Usama Arif <usamaarif642@gmail.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-03-16 22:06:13 -07:00
SeongJae Park
eb14b12c8c Docs/admin-guide/mm/damon/usage: fix and add missing DAMOS filter sysfs files on files hierarchy
DAMOS filter directory part of DAMON sysfs files hierarchy on the usage
document is wrong.  'memcg_path' file under the directory is wrongly
written as 'memcg_id'.  Also the directory has 'addr_start', 'addr_end',
and 'target_idx' files, but the list is missing those.  Fix the wrong name
and add missing files.

Link: https://lkml.kernel.org/r/20250110185232.54907-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Honggyu Kim <honggyu.kim@sk.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Yunjeong Mun <yunjeong.mun@sk.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-01-25 20:22:39 -08:00
SeongJae Park
bc6f663add Docs/admin-guide/mm/damon/usage: document DAMOS filter 'allow' sysfs file
Update DAMON usage document for the newly added 'allow' sysfs file for
DAMOS filters.

Link: https://lkml.kernel.org/r/20250109175126.57878-11-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>
2025-01-25 20:22:33 -08:00
SeongJae Park
5bce494764 Docs/admin-guide/mm/damon/usage: omit DAMOS filter details in favor of design doc
DAMON usage document is describing some details about DAMOS filters, which
are also documented on the design doc.  Deduplicate the details in favor
of the design doc.

Link: https://lkml.kernel.org/r/20250109175126.57878-10-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>
2025-01-25 20:22:32 -08:00
SeongJae Park
38c433bc7e Docs/admin-guide/mm/damon/usage: remove DAMON debugfs interface documentation
It's time to remove DAMON debugfs interface, which has deprecated long
before in February 2023.  Read the cover letter of this patch series for
more details.

Remove DAMON debugfs interface usage documentation, to avoid confusing
users with documents for an already removed thing.

Link: https://lkml.kernel.org/r/20250106191941.107070-3-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Alex Shi <alexs@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Gow <davidgow@google.com>
Cc: Hu Haowen <2023002089@link.tyut.edu.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Rae Moar <rmoar@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Yanteng Si <si.yanteng@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-01-25 20:22:28 -08:00
SeongJae Park
f423944bd7 Docs/admin-guide/mm/damon/usage: document sz_filtered_out of scheme tried region directories
Document the newly added DAMON sysfs interface file for per-scheme-tried
region's bytes that passed the operations set handling DAMOS filters.

Link: https://lkml.kernel.org/r/20250106193401.109161-16-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>
2025-01-25 20:22:28 -08:00
SeongJae Park
6bbdb28d88 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>
2025-01-25 20:22:27 -08:00
SeongJae Park
fc4e40937d Docs/admin-guide/mm/damon/usage: link damos stat design doc
DAMON sysfs usage document focuses on usage, rather than the detail of the
stat metric itself.  Add a link to the design document on DAMOS stat usage
section.

Link: https://lkml.kernel.org/r/20250106193401.109161-4-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>
2025-01-25 20:22:26 -08:00
SeongJae Park
23a425aab0 Docs/damon: use damonitor GitHub organization instead of awslabs
Patch series "Docs/damon: update GitHub repo URLs and maintainer-profile".

Replace GitHub URLS on DAMON documents for none-kernel parts DAMON repos
with new ones[1] via the first patch.  With following two patches,
wordsmith maitnainer-profile for better readability, and document the
Google clendsar for bi-weekly meetups, respectively.

[1] https://lore.kernel.org/20240813232158.83903-1-sj@kernel.org


This patch (of 3):

GitHub repos for non-kernel parts of DAMON project including 'damo',
'damon-tests' and 'damoos' will be moved[1] from 'awslabs' org to
'damonitor', by 2024-09-05.  Update related URLs in kernel tree.

[1] https://lore.kernel.org/20240813232158.83903-1-sj@kernel.org

Link: https://lkml.kernel.org/r/20240826015741.80707-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20240826015741.80707-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Alex Shi <alexs@kernel.org>
Cc: Hu Haowen <2023002089@link.tyut.edu.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-09-09 16:39:00 -07:00
Honggyu Kim
83d0d46a80 Docs/damon: document damos_migrate_{hot,cold}
This patch adds damon description for "migrate_hot" and "migrate_cold"
actions for both usage and design documents as long as a new
"target_nid" knob to set the migration target node.

[sj@kernel.org: trivial fixups for DAMOS_MIGRATE_{HOT,COLD} documentation]
  Link: https://lkml.kernel.org/r/20240618213630.84846-2-sj@kernel.org
Link: https://lkml.kernel.org/r/20240614030010.751-8-honggyu.kim@sk.com
Signed-off-by: Honggyu Kim <honggyu.kim@sk.com>
Signed-off-by: SeongJae Park <sj@kernel.org>Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Gregory Price <gregory.price@memverge.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Hyeongtak Ji <hyeongtak.ji@sk.com>
Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Rakie Kim <rakie.kim@sk.com>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-07-03 19:30:13 -07:00
SeongJae Park
14e70e4660 Docs/admin-guide/mm/damon/usage: fix wrong schemes effective quota update command
To update effective size quota of DAMOS schemes on DAMON sysfs file
interface, user should write 'update_schemes_effective_quotas' to the
kdamond 'state' file.  But the document is mistakenly saying the input
string as 'update_schemes_effective_bytes'.  Fix it (s/bytes/quotas/).

Link: https://lkml.kernel.org/r/20240503180318.72798-8-sj@kernel.org
Fixes: a6068d6dfa ("Docs/admin-guide/mm/damon/usage: document effective_bytes file")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org>	[6.9.x]
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-11 15:41:34 -07:00
SeongJae Park
da2a061888 Docs/admin-guide/mm/damon/usage: fix wrong example of DAMOS filter matching sysfs file
The example usage of DAMOS filter sysfs files, specifically the part of
'matching' file writing for memcg type filter, is wrong.  The intention is
to exclude pages of a memcg that already getting enough care from a given
scheme, but the example is setting the filter to apply the scheme to only
the pages of the memcg.  Fix it.

Link: https://lkml.kernel.org/r/20240503180318.72798-7-sj@kernel.org
Fixes: 9b7f9322a5 ("Docs/admin-guide/mm/damon/usage: document DAMOS filters of sysfs")
Closes: https://lore.kernel.org/r/20240317191358.97578-1-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org>	[6.3.x]
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-11 15:41:34 -07:00
SeongJae Park
ed13c93b93 Docs/admin-guide/mm/damon/usage: update for young page type DAMOS filter
Update DAMON usage document for the newly added DAMOS filter type, 'young
page'.

Link: https://lkml.kernel.org/r/20240426195247.100306-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Honggyu Kim <honggyu.kim@sk.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-05 17:53:55 -07:00
SeongJae Park
57e88e86a1 Docs/admin-guide/mm/damon/usage: document quota goal metric file
Update DAMON usage document for the quota goal target_metric file.

[sj@kernel.org: fix a typo on the auto-tuning design reference link]
  Link: https://lkml.kernel.org/r/20240221170852.55529-3-sj@kernel.org
Link: https://lkml.kernel.org/r/20240219194431.159606-18-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-02-23 17:48:29 -08:00
SeongJae Park
a6068d6dfa Docs/admin-guide/mm/damon/usage: document effective_bytes file
Update DAMON usage document for the effective quota file of the DAMON
sysfs interface.

Link: https://lkml.kernel.org/r/20240219194431.159606-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-02-23 17:48:26 -08:00
SeongJae Park
7d8cebb963 Docs/admin-guide/mm/damon/usage: fix wrong quotas diabling condition
After the introduction of DAMOS quotas, DAMOS quotas is not disabled if
both size and time quotas are zero but the quota goal is set.  The new
rule is also applied to DAMON sysfs interface, but the usage doc is not
updated.  Update it.

Link: https://lkml.kernel.org/r/20240217005842.87348-6-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>
2024-02-22 15:27:20 -08:00
SeongJae Park
2d89957c93 Docs/mm/damon: move monitoring target regions setup detail from the usage to the design document
Design doc is aimed to have all concept level details, while the usage doc
is focused on only how the features can be used.  Some details about
monitoring target regions construction is on the usage doc.  Move the
details about the monitoring target regions construction differences for
DAMON operations set from the usage to the design doc.

Link: https://lkml.kernel.org/r/20240217005842.87348-5-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>
2024-02-22 15:27:20 -08:00
SeongJae Park
669971b406 Docs/mm/damon: move DAMON operation sets list from the usage to the design document
The list of DAMON operation sets and their explanation, which may better
to be on design document, is written on the usage document.  Move the
detail to design document and make the usage document only reference the
design document.

[sj@kernel.org: fix a typo on a reference link]
  Link: https://lkml.kernel.org/r/20240221170852.55529-2-sj@kernel.org
Link: https://lkml.kernel.org/r/20240217005842.87348-4-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>
2024-02-22 15:27:20 -08:00
SeongJae Park
5b7708e6a8 Docs/mm/damon: move the list of DAMOS actions to design doc
DAMOS operation actions are explained nearly twice on the DAMON usage
document, once for the sysfs interface, and then again for the debugfs
interface.  Duplication is bad.  Also it would better to keep this kind of
concept level details in design document and keep the usage document small
and focus on only the usage.  Move the list to design document and update
usage document to reference it.

Link: https://lkml.kernel.org/r/20240217005842.87348-3-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>
2024-02-22 15:27:20 -08:00
SeongJae Park
ec28cf530c Docs/admin-guide/mm/damon/usage: update for monitor_on renaming
Update DAMON debugfs interface sections on the usage document to reflect
the fact that 'monitor_on' file has renamed to 'monitor_on_DEPRECATED'.

Link: https://lkml.kernel.org/r/20240130013549.89538-9-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Alex Shi <alexs@kernel.org>
Cc: Hu Haowen <2023002089@link.tyut.edu.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-02-22 10:24:46 -08:00
SeongJae Park
cf3810cc31 Docs/admin-guide/mm/damon/usage: document 'DEPRECATED' file of DAMON debugfs interface
Document the newly added DAMON debugfs interface deprecation notice file
on the usage document.

Link: https://lkml.kernel.org/r/20240130013549.89538-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Alex Shi <alexs@kernel.org>
Cc: Hu Haowen <2023002089@link.tyut.edu.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-02-22 10:24:45 -08:00
SeongJae Park
5af28560fe Docs/admin-guide/mm/damon/usage: use sysfs interface for tracepoints example
Patch series "mm/damon: make DAMON debugfs interface deprecation
unignorable".

DAMON debugfs interface is deprecated in February 2023, by commit
5445fcbc4c ("Docs/admin-guide/mm/damon/usage: add DAMON debugfs
interface deprecation notice").  Make the fact unable to be easily ignored
by removing an example usage from the document (patch 1), renaming the
config (patch 2), adding a deprecation notice file to the debugfs
directory (patches 3-5), and renaming the debugfs file that essnetial to
be used for real use of DAMON (patches 6-9).


This patch (of 9):

DAMON tracepoints example on the DAMON usage document is using DAMON
debugfs interface, which is deprecated.  Use its alternative, DAMON sysfs
interface.

Link: https://lkml.kernel.org/r/20240130013549.89538-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20240130013549.89538-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Alex Shi <alexs@kernel.org>
Cc: Hu Haowen <2023002089@link.tyut.edu.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-02-22 10:24:45 -08:00
SeongJae Park
e93b81a3fc Docs/admin-guide/mm/damon/usage: use a list for 'state' sysfs file input commands
There are eight command inputs for 'state' DAMON sysfs file, and those are
verbosely explained in multiple paragraphs.  It is not easy to find
explanation of specific command, and getting whole picture of supported
commands.  Replace the paragraphs with a list.

Link: https://lkml.kernel.org/r/20231213190338.54146-7-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>
2023-12-20 14:48:13 -08:00
SeongJae Park
9c8c315da2 Docs/admin-guide/mm/damon/usage: add links to sysfs files hierarchy
'Sysfs Files Hierarchy' section of DAMON usage document shows whole
picture of the interface.  Then sections for detailed explanation of the
files follow.  Due to the amount of the files, navigating between the
whole picture and the section for specific files sometimes require no
subtle amount of scrolling.  Add links from the whole picture to the
dedicated sections for making the navigation easier.

Link: https://lkml.kernel.org/r/20231213190338.54146-6-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>
2023-12-20 14:48:13 -08:00
SeongJae Park
c7ae9634a4 Docs/admin-guide/mm/damon/usage: update context directory section label
The label for context DAMON sysfs directory section is having name
sysfs_contexts.  The name would be better to be used for the contexts
directory.  Rename it to represent a single context.

Link: https://lkml.kernel.org/r/20231213190338.54146-5-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>
2023-12-20 14:48:13 -08:00
SeongJae Park
6140edeea8 Docs/admin-guide/mm/damon/usage: document for quota goals
Update DAMON sysfs usage for newly added DAMOS quota goals interface.

Link: https://lkml.kernel.org/r/20231130023652.50284-10-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Gow <davidgow@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-12-12 10:57:05 -08:00
SeongJae Park
bc17ea26a8 Docs/admin-guide/mm/damon/usage: update for tried regions update time interval
The documentation says DAMOS tried regions update feature of DAMON sysfs
interface is doing the update for one aggregation interval after the
request is made.  Since the introduction of the per-scheme apply interval,
that behavior makes no much sense.  Hence the implementation has changed
to update the regions for each scheme for only its apply interval. 
Further update the document to reflect the real behavior.

Link: https://lkml.kernel.org/r/20231012192256.33556-4-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>
2023-10-18 14:34:19 -07:00
SeongJae Park
033343d5c5 Docs/admin-guide/mm/damon/usage: update for DAMOS apply intervals
Update DAMON usage document's DAMON sysfs interface section for the newly
added DAMOS apply intervals support (apply_interval_us file).

Link: https://lkml.kernel.org/r/20230916020945.47296-9-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-10-04 10:32:31 -07:00
SeongJae Park
1b2b7a17ab Docs/admin-guide/mm/damon/usage: document damos_before_apply tracepoint
Document damos_before_apply tracepoint on the usage document.

Link: https://lkml.kernel.org/r/20230913022050.2109-3-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-10-04 10:32:28 -07:00
SeongJae Park
46158bf211 Docs/admin-guide/mm/damon/usage: link design doc for details of kdamond and context
The explanation of kdamond and context is duplicated in the design and
the usage documents.  Replace that in the usage with links to those in
the design document.

Link: https://lkml.kernel.org/r/20230907022929.91361-8-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-10-04 10:32:21 -07:00
SeongJae Park
4f554ca15a Docs/admin-guide/mm/damon/usage: explain the format of damon_aggregate tracepoint
The example of the section for damon_aggregated tracepoint is not
explaining how the output looks like, and how it can be interpreted.
Add it.

Link: https://lkml.kernel.org/r/20230907022929.91361-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-10-04 10:32:21 -07:00
SeongJae Park
4f7112786e Docs/admin-guide/mm/damon/usage: move debugfs intro to the bottom of the section
On the DAMON usage introduction section, the introduction of DAMON
debugfs interface, which is deprecated, is above kernel API, which is
actively supported.  Move the DAMON debugfs intro to bottom, so that
readers have less chances to read it.

Link: https://lkml.kernel.org/r/20230907022929.91361-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-10-04 10:32:21 -07:00
SeongJae Park
75999724ba Docs/admin-guide/mm/damon/usage: place debugfs usage at the bottom
debugfs interface is deprecated.  Put it at the bottom of the document
so that readers have less chances to read it.

Link: https://lkml.kernel.org/r/20230907022929.91361-3-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-10-04 10:32:21 -07:00
SeongJae Park
b4c078004a Docs/admin-guide/mm/damon/usage: fixup missed :ref: keyword
Patch series "mm/damon: misc fixups for documents, comments and its
tracepoint".

This patchset contains miscellaneous simple fixups for documents, comments and
tracepoint of DAMON.


This patch (of 11):

A cross-link reference in DAMON usage document is missing ':ref:' Sphynx
keyword.  Fix it.

Link: https://lkml.kernel.org/r/20230907022929.91361-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20230907022929.91361-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-10-04 10:32:21 -07:00
Linus Torvalds
cd99b9eb4b Documentation work keeps chugging along; stuff for 6.6 includes:
- Work from Carlos Bilbao to integrate rustdoc output into the generated
   HTML documentation.  This took some work to figure out how to do it
   without slowing the docs build and without creating people who don't have
   Rust installed, but Carlos got there.
 
 - Move the loongarch and mips architecture documentation under
   Documentation/arch/.
 
 - Some more maintainer documentation from Jakub
 
 ...plus the usual assortment of updates, translations, and fixes.
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Merge tag 'docs-6.6' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "Documentation work keeps chugging along; this includes:

   - Work from Carlos Bilbao to integrate rustdoc output into the
     generated HTML documentation. This took some work to figure out how
     to do it without slowing the docs build and without creating people
     who don't have Rust installed, but Carlos got there

   - Move the loongarch and mips architecture documentation under
     Documentation/arch/

   - Some more maintainer documentation from Jakub

  ... plus the usual assortment of updates, translations, and fixes"

* tag 'docs-6.6' of git://git.lwn.net/linux: (56 commits)
  Docu: genericirq.rst: fix irq-example
  input: docs: pxrc: remove reference to phoenix-sim
  Documentation: serial-console: Fix literal block marker
  docs/mm: remove references to hmm_mirror ops and clean typos
  docs/zh_CN: correct regi_chg(),regi_add() to region_chg(),region_add()
  Documentation: Fix typos
  Documentation/ABI: Fix typos
  scripts: kernel-doc: fix macro handling in enums
  scripts: kernel-doc: parse DEFINE_DMA_UNMAP_[ADDR|LEN]
  Documentation: riscv: Update boot image header since EFI stub is supported
  Documentation: riscv: Add early boot document
  Documentation: arm: Add bootargs to the table of added DT parameters
  docs: kernel-parameters: Refer to the correct bitmap function
  doc: update params of memhp_default_state=
  docs: Add book to process/kernel-docs.rst
  docs: sparse: fix invalid link addresses
  docs: vfs: clean up after the iterate() removal
  docs: Add a section on surveys to the researcher guidelines
  docs: move mips under arch
  docs: move loongarch under arch
  ...
2023-08-30 20:05:42 -07:00
SeongJae Park
41a7ed8cfd Docs/admin-guide/mm/damon/usage: update for DAMON monitoring target type DAMOS filter
Update DAMON usage document for newly added DAMON monitoring target type
DAMOS filter.

Link: https://lkml.kernel.org/r/20230802214312.110532-14-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21 13:37:38 -07:00
SeongJae Park
375af85038 Docs/admin-guide/mm/damon/usage: update for address range type DAMOS filter
Update DAMON usage document for the newly added address range type DAMOS
filter.

Link: https://lkml.kernel.org/r/20230802214312.110532-8-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21 13:37:36 -07:00
SeongJae Park
ea7f03a441 Docs/admin-guide/mm/damon/usage: update for tried_regions/total_bytes
Update the DAMON usage document for newly added
schemes/.../tried_regions/total_bytes file and the
update_schemes_tried_bytes command.

Link: https://lkml.kernel.org/r/20230802213222.109841-6-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>
2023-08-21 13:37:35 -07:00
Bjorn Helgaas
d56b699d76 Documentation: Fix typos
Fix typos in Documentation.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20230814212822.193684-4-helgaas@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-08-18 11:29:03 -06:00
SeongJae Park
ff71f26f97 Docs/admin-guide/mm/damon/usage: update the ways for getting monitoring results
The recommended ways for getting DAMON monitoring results are using
tried_regions sysfs directory for partial snapshot of the results, and
DAMON tracepoint for full record of the results.  However, the
tried_regions sysfs directory usage has not sufficiently updated on some
sections of the DAMON usage document.  Update those.

Link: https://lkml.kernel.org/r/20230616191742.87531-8-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>
2023-06-19 16:19:37 -07:00
SeongJae Park
67c34f6c6a Docs/admin-guide/mm/damon/usage: clarify quotas and watermarks sysfs interface
Explanation of DAMOS quotas and watermarks are not clearly explaining the
meaning and expectation of each file.  Add more clarification for those.

Link: https://lkml.kernel.org/r/20230616191742.87531-7-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>
2023-06-19 16:19:37 -07:00
SeongJae Park
01e08737da Docs/admin-guide/mm/damon/usage: link design document for DAMOS
The background and concept of DAMOS is redundantly documented, in the
design document and the usage document.  Replace the duplicated ones in
usage document with links to the design document.

Link: https://lkml.kernel.org/r/20230616191742.87531-6-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>
2023-06-19 16:19:36 -07:00
SeongJae Park
ddb7d012b1 Docs/admin-guide/mm/damon/usage: remove unnecessary sentences about supported address spaces
Brief explanation of DAMON user space tool and sysfs interface are
unnecessarily and repeatedly mentioning the list of address spaces that
DAMON is supporting.  Remove those.

Link: https://lkml.kernel.org/r/20230616191742.87531-5-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>
2023-06-19 16:19:36 -07:00
SeongJae Park
cc5ece5979 Docs/admin-guide/mm/damon/usage: fix typos in references and commas
Fix typos including a unnecessary comma and incomplete ':ref:' keywords.

Link: https://lkml.kernel.org/r/20230616191742.87531-4-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>
2023-06-19 16:19:36 -07:00