* [merged mm-stable] docs-admin-guide-mm-damon-reclaim-document-auto-tuning-parameters.patch removed from -mm tree
@ 2024-02-24 1:50 Andrew Morton
0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2024-02-24 1:50 UTC (permalink / raw)
To: mm-commits, sj, akpm
The quilt patch titled
Subject: Docs/admin-guide/mm/damon/reclaim: document auto-tuning parameters
has been removed from the -mm tree. Its filename was
docs-admin-guide-mm-damon-reclaim-document-auto-tuning-parameters.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: SeongJae Park <sj@kernel.org>
Subject: Docs/admin-guide/mm/damon/reclaim: document auto-tuning parameters
Date: Mon, 19 Feb 2024 11:44:31 -0800
Update DAMON_RECLAIM usage document for the user/self feedback based
auto-tuning of the quota.
Link: https://lkml.kernel.org/r/20240219194431.159606-21-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
Documentation/admin-guide/mm/damon/reclaim.rst | 27 +++++++++++++++
1 file changed, 27 insertions(+)
--- a/Documentation/admin-guide/mm/damon/reclaim.rst~docs-admin-guide-mm-damon-reclaim-document-auto-tuning-parameters
+++ a/Documentation/admin-guide/mm/damon/reclaim.rst
@@ -117,6 +117,33 @@ milliseconds.
1 second by default.
+quota_mem_pressure_us
+---------------------
+
+Desired level of memory pressure-stall time in microseconds.
+
+While keeping the caps that set by other quotas, DAMON_RECLAIM automatically
+increases and decreases the effective level of the quota aiming this level of
+memory pressure is incurred. System-wide ``some`` memory PSI in microseconds
+per quota reset interval (``quota_reset_interval_ms``) is collected and
+compared to this value to see if the aim is satisfied. Value zero means
+disabling this auto-tuning feature.
+
+Disabled by default.
+
+quota_autotune_feedback
+-----------------------
+
+User-specifiable feedback for auto-tuning of the effective quota.
+
+While keeping the caps that set by other quotas, DAMON_RECLAIM automatically
+increases and decreases the effective level of the quota aiming receiving this
+feedback of value ``10,000`` from the user. DAMON_RECLAIM assumes the feedback
+value and the quota are positively proportional. Value zero means disabling
+this auto-tuning feature.
+
+Disabled by default.
+
wmarks_interval
---------------
_
Patches currently in -mm which might be from sj@kernel.org are
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2024-02-24 1:50 [merged mm-stable] docs-admin-guide-mm-damon-reclaim-document-auto-tuning-parameters.patch removed from -mm tree Andrew Morton
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