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[16/20] Docs/ABI/damon: document quota goal metric file

Message ID	20240219194431.159606-17-sj@kernel.org
State	New
Headers	Received-SPF: pass (google.com: domain of linux-kernel+bounces-71898-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3; From: SeongJae Park <sj@kernel.org> To: Andrew Morton <akpm@linux-foundation.org> Cc: SeongJae Park <sj@kernel.org>, damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH 16/20] Docs/ABI/damon: document quota goal metric file Date: Mon, 19 Feb 2024 11:44:27 -0800 Message-Id: <20240219194431.159606-17-sj@kernel.org> In-Reply-To: <20240219194431.159606-1-sj@kernel.org> References: <20240219194431.159606-1-sj@kernel.org> Precedence: bulk MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-getmail-retrieved-from-mailbox: INBOX
Series	mm/damon: let DAMOS feeds and tame/auto-tune itself \| [00/20] mm/damon: let DAMOS feeds and tame/auto-tune itself [01/20] mm/damon/core: Set damos_quota->esz as public field and document [02/20] mm/damon/sysfs-schemes: implement quota effective_bytes file [03/20] mm/damon/sysfs: implement a kdamond command for updating schemes' effective quotas [04/20] Docs/ABI/damon: document effective_bytes sysfs file [05/20] Docs/admin-guide/mm/damon/usage: document effective_bytes file [06/20] mm/damon: move comments and fields for damos-quota-prioritization to the end [07/20] mm/damon/core: split out quota goal related fields to a struct [08/20] mm/damon/core: add multiple goals per damos_quota and helpers for those [09/20] mm/damon/sysfs: use only quota->goals [10/20] mm/damon/core: remove ->goal field of damos_quota [11/20] mm/damon/core: let goal specified with only target and current values [12/20] mm/damon/core: support multiple metrics for quota goal [13/20] mm/damon/core: implement PSI metric DAMOS quota goal [14/20] mm/damon/sysfs-schemes: support PSI-based quota auto-tune [15/20] Docs/mm/damon/design: document quota goal self-tuning [16/20] Docs/ABI/damon: document quota goal metric file [17/20] Docs/admin-guide/mm/damon/usage: document quota goal metric file [18/20] mm/damon/reclaim: implement user-feedback driven quota auto-tuning [19/20] mm/damon/reclaim: implement memory PSI-driven quota self-tuning [20/20] Docs/admin-guide/mm/damon/reclaim: document auto-tuning parameters

Commit Message

SeongJae Park Feb. 19, 2024, 7:44 p.m. UTC

  Update DAMON ABI document for the quota goal target_metric file.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
 Documentation/ABI/testing/sysfs-kernel-mm-damon | 6 ++++++
 1 file changed, 6 insertions(+)

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Patch

diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-damon b/Documentation/ABI/testing/sysfs-kernel-mm-damon
index a1e4fdb04f95..dad4d5ffd786 100644
--- a/Documentation/ABI/testing/sysfs-kernel-mm-damon
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-damon
@@ -229,6 +229,12 @@  Description:	Writing a number 'N' to this file creates the number of
 		directories for setting automatic tuning of the scheme's
 		aggressiveness named '0' to 'N-1' under the goals/ directory.
 
+What:		/sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/goals/<G>/target_metric
+Date:		Feb 2024
+Contact:	SeongJae Park <sj@kernel.org>
+Description:	Writing to and reading from this file sets and gets the quota
+		auto-tuning goal metric.
+
 What:		/sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/goals/<G>/target_value
 Date:		Nov 2023
 Contact:	SeongJae Park <sj@kernel.org>