Commit bc17ea26 authored by SeongJae Park's avatar SeongJae Park Committed by Andrew Morton
Browse files

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: default avatarSeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 76126332

Documentation/admin-guide/mm/damon/usage.rst

+3 −3
Original line number Diff line number Diff line
@@ -432,9 +432,9 @@ that reading it returns the total size of the scheme tried regions, and creates 
directories named integer starting from ``0`` under this directory.  Each

directory contains files exposing detailed information about each of the memory

region that the corresponding scheme's ``action`` has tried to be applied under

this directory, during next :ref:`aggregation interval

<sysfs_monitoring_attrs>`.  The information includes address range,

``nr_accesses``, and ``age`` of the region.

this directory, during next :ref:`apply interval <damon_design_damos>` of the

corresponding scheme.  The information includes address range, ``nr_accesses``,

and ``age`` of the region.



Writing ``update_schemes_tried_bytes`` to the relevant ``kdamonds/<N>/state``

file will only update the ``total_bytes`` file, and will not create the