The patch titled Subject: Docs/damon: update outdated term 'regions update interval' has been added to the -mm tree. Its filename is docs-damon-update-outdated-term-regions-update-interval.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/docs-damon-update-outdated-term-regions-update-interval.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/docs-damon-update-outdated-term-regions-update-interval.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as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 and is updated there every 3-4 working days ------------------------------------------------------ From: SeongJae Park <sj@xxxxxxxxxx> Subject: Docs/damon: update outdated term 'regions update interval' Before DAMON is merged in the mainline, the concept of 'regions update interval' has generalized to be used as the time interval for update of any monitoring operations related data structure, but the document has not updated properly. This commit updates the document for better consistency. Link: https://lkml.kernel.org/r/20220222170100.17068-4-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 | 6 +++--- Documentation/vm/damon/design.rst | 12 +++++++----- 2 files changed, 10 insertions(+), 8 deletions(-) --- a/Documentation/admin-guide/mm/damon/usage.rst~docs-damon-update-outdated-term-regions-update-interval +++ a/Documentation/admin-guide/mm/damon/usage.rst @@ -47,7 +47,7 @@ Attributes ---------- Users can get and set the ``sampling interval``, ``aggregation interval``, -``regions update interval``, and min/max number of monitoring target regions by +``update interval``, and min/max number of monitoring target regions by reading from and writing to the ``attrs`` file. To know about the monitoring attributes in detail, please refer to the :doc:`/vm/damon/design`. For example, below commands set those values to 5 ms, 100 ms, 1,000 ms, 10 and @@ -128,8 +128,8 @@ ranges, ``20-40`` and ``50-100`` as that Note that this sets the initial monitoring target regions only. In case of virtual memory monitoring, DAMON will automatically updates the boundary of the -regions after one ``regions update interval``. Therefore, users should set the -``regions update interval`` large enough in this case, if they don't want the +regions after one ``update interval``. Therefore, users should set the +``update interval`` large enough in this case, if they don't want the update. --- a/Documentation/vm/damon/design.rst~docs-damon-update-outdated-term-regions-update-interval +++ a/Documentation/vm/damon/design.rst @@ -95,8 +95,8 @@ Address Space Independent Core Mechanism Below four sections describe each of the DAMON core mechanisms and the five monitoring attributes, ``sampling interval``, ``aggregation interval``, -``regions update interval``, ``minimum number of regions``, and ``maximum -number of regions``. +``update interval``, ``minimum number of regions``, and ``maximum number of +regions``. Access Frequency Monitoring @@ -169,6 +169,8 @@ The monitoring target address range coul virtual memory could be dynamically mapped and unmapped. Physical memory could be hot-plugged. -As the changes could be quite frequent in some cases, DAMON checks the dynamic -memory mapping changes and applies it to the abstracted target area only for -each of a user-specified time interval (``regions update interval``). +As the changes could be quite frequent in some cases, DAMON allows the +monitoring operations to check dynamic changes including memory mapping changes +and applies it to monitoring operations-related data structures such as the +abstracted monitoring target memory area only for each of a user-specified time +interval (``update interval``). _ Patches currently in -mm which might be from sj@xxxxxxxxxx are mm-damon-dbgfs-init_regions-use-target-index-instead-of-target-id.patch docs-admin-guide-mm-damon-usage-update-for-changed-initail_regions-file-input.patch mm-damon-core-move-damon_set_targets-into-dbgfs.patch mm-damon-remove-the-target-id-concept.patch mm-damon-rename-damon_primitives-to-damon_operations.patch mm-damon-let-monitoring-operations-can-be-registered-and-selected.patch mm-damon-paddrvaddr-register-themselves-to-damon-in-subsys_initcall.patch mm-damon-reclaim-use-damon_select_ops-instead-of-damon_vpa_set_operations.patch mm-damon-dbgfs-use-damon_select_ops-instead-of-damon_vpa_set_operations.patch mm-damon-dbgfs-use-operations-id-for-knowing-if-the-target-has-pid.patch mm-damon-dbgfs-test-fix-is_target_id-change.patch mm-damon-paddrvaddr-remove-damon_pva_target_validset_operations.patch docs-vm-damon-call-low-level-monitoring-primitives-the-operations.patch docs-vm-damon-design-update-damon-idle-page-tracking-interference-handling.patch docs-damon-update-outdated-term-regions-update-interval.patch