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Howlett" , David Hildenbrand , Jonathan Corbet , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Randy Dunlap , SJ Park , Shuah Khan , Suren Baghdasaryan , Vlastimil Babka , damon@lists.linux.dev, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v4 3/3] Docs/mm/damon/design: Document hugepage_mem_bp target metric Date: Mon, 31 Aug 2026 07:47:30 -0700 Message-ID: <20260831144732.80910-4-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260831144732.80910-1-sj@kernel.org> References: <20260831144732.80910-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: BA529C000D X-Stat-Signature: ntbkdxj6u1nskim4khwm9z67qf88g1ar X-HE-Tag: 1788187663-244219 X-HE-Meta: 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 4NoTepgj TNtFEgo/QJHuyjLzReCnh+/DiAyM2Ve/M2g3ol63jt+GM8Uxfw0KMDJwJ2EeBctpHOyOY2YZboM61H40sr2PLNLVH+d1uaNwy34MEuf8i9pl53k0Z6YiKCjuTaoWVzxvmEuHlxPL/hxTqqYcREGK/+VB0o76SzCvuhqwSZkrbvwPaMq+GtkaBkxsjBxvhUpilje+OnX7FrzuRyVkJecEMxqIqUh2QnFIaTtcj9rEz0uIj8/LE96heDFeY8kUA9fIefdVVdxCez3N/pKro83ELzlg3RhO00dZKygdR7Zb3Lt9Vv585HReDVdLqy7jYFOd1LlQlNrqnUiCZBTLoA0omPcNIcQ== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Asier Gutierrez Document hugepage_mem_bp metric exposed by sysfs. Signed-off-by: Asier Gutierrez Reviewed-by: SJ Park Signed-off-by: SJ Park --- Documentation/mm/damon/design.rst | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/mm/damon/design.rst b/Documentation/mm/damon/design.rst index aed6cb1cf4831..a8c163475ef2b 100644 --- a/Documentation/mm/damon/design.rst +++ b/Documentation/mm/damon/design.rst @@ -713,6 +713,8 @@ mechanism tries to make ``current_value`` of ``target_metric`` be same to bp (1/10,000). - ``node_eligible_mem_bp``: Scheme target access pattern-eligible memory ratio of a node in bp (1/10,000). +- ``hugepage_mem_bp``: Total huge page to total used memory ratio in bp + (1/10,000). ``nid`` is optionally required for ``node_mem_used_bp``, ``node_mem_free_bp``, ``node_memcg_used_bp``, ``node_memcg_free_bp`` and ``node_eligible_mem_bp`` to -- 2.47.3