The patch titled Subject: Docs/admin-guide/mm/damon/usage: link damos stat design doc has been added to the -mm mm-unstable branch. Its filename is docs-admin-guide-mm-damon-usage-link-damos-stat-design-doc.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-link-damos-stat-design-doc.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: SeongJae Park <sj@xxxxxxxxxx> Subject: Docs/admin-guide/mm/damon/usage: link damos stat design doc Date: Mon, 6 Jan 2025 11:33:48 -0800 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@xxxxxxxxxx Signed-off-by: SeongJae Park <sj@xxxxxxxxxx> Cc: Jonathan Corbet <corbet@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- Documentation/admin-guide/mm/damon/usage.rst | 3 ++- Documentation/mm/damon/design.rst | 2 ++ 2 files changed, 4 insertions(+), 1 deletion(-) --- a/Documentation/admin-guide/mm/damon/usage.rst~docs-admin-guide-mm-damon-usage-link-damos-stat-design-doc +++ a/Documentation/admin-guide/mm/damon/usage.rst @@ -451,7 +451,8 @@ 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. +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 --- a/Documentation/mm/damon/design.rst~docs-admin-guide-mm-damon-usage-link-damos-stat-design-doc +++ a/Documentation/mm/damon/design.rst @@ -539,6 +539,8 @@ To know how user-space can set the water <sysfs_interface>`, refer to :ref:`filters <sysfs_filters>` part of the documentation. +.. _damon_design_damos_stat: + Statistics ~~~~~~~~~~ _ Patches currently in -mm which might be from sj@xxxxxxxxxx are samples-add-a-skeleton-of-a-sample-damon-module-for-working-set-size-estimation.patch samples-damon-wsse-start-and-stop-damon-as-the-user-requests.patch samples-damon-wsse-implement-working-set-size-estimation-and-logging.patch samples-damon-introduce-a-skeleton-of-a-smaple-damon-module-for-proactive-reclamation.patch samples-damon-prcl-implement-schemes-setup.patch replace-free-hugepage-folios-after-migration-fix-2.patch docs-admin-guide-mm-damon-usage-remove-damon-debugfs-interface-documentation.patch docs-mm-damon-design-update-for-removal-of-damon-debugfs-interface.patch selftests-damon-config-remove-configs-for-damon-debugfs-interface-selftests.patch selftests-damon-remove-tests-for-damon-debugfs-interface.patch kunit-configs-remove-configs-for-damon-debugfs-interface-tests.patch mm-damon-remove-damon-debugfs-interface-kunit-tests.patch mm-damon-remove-damon-debugfs-interface.patch mm-damon-sysfs-schemes-remove-unnecessary-schemes-existence-check-in-damon_sysfs_schemes_clear_regions.patch mm-damon-sysfs-handle-clear_schemes_tried_regions-from-damon-sysfs-context.patch mm-damon-core-introduce-damon_call.patch mm-damon-sysfs-use-damon_call-for-update_schemes_stats.patch mm-damon-sysfs-use-damon_call-for-commit_schemes_quota_goals.patch mm-damon-sysfs-use-damon_call-for-update_schemes_effective_quotas.patch mm-damon-core-implement-damos_walk.patch docs-mm-damon-design-document-damos-regions-walking.patch mm-damon-sysfs-use-damos_walk-for-update_schemes_tried_bytesregions.patch mm-damon-sysfs-remove-unused-code-for-schemes-tried-regions-update.patch mm-damon-clarify-trying-vs-applying-on-damos_stat-kernel-doc-comment.patch docs-mm-damon-design-add-statistics-section.patch docs-admin-guide-mm-damon-usage-link-damos-stat-design-doc.patch mm-damon-ask-apply_scheme-to-report-filter-passed-region-internal-bytes.patch mm-damon-paddr-report-filter-passed-bytes-back-for-normal-actions.patch mm-damon-paddr-report-filter-passed-bytes-back-for-damos_stat-action.patch mm-damon-core-implement-per-scheme-ops-handled-filter-passed-bytes-stat.patch mm-damon-syfs-schemes-implement-per-scheme-filter-passed-bytes-stat.patch docs-mm-damon-design-document-sz_ops_filter_passed.patch docs-admin-guide-mm-damon-usage-document-sz_ops_filter_passed.patch docs-abi-damon-document-per-scheme-filter-passed-bytes-stat-file.patch mm-damon-core-pass-per-region-filter-passed-bytes-to-damos_walk_control-walk_fn.patch mm-damon-sysfs-schemes-expose-per-region-filter-passed-bytes.patch docs-mm-damon-design-document-per-region-sz_filter_passed-stat.patch docs-admin-guide-mm-damon-usage-document-sz_filtered_out-of-scheme-tried-region-directories.patch docs-abi-damon-document-per-region-damos-filter-passed-bytes-stat-file.patch