From nobody Wed Dec 17 17:58:23 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 623641FDE1A; Fri, 3 Jan 2025 17:44:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735926260; cv=none; b=RpkJ3KO1yVgivjiKmpmw55wPO89iX+l+PC0JgVKjjCEuBBuDjD9H4M8wxG0+pWwRqwvTtExxlVuTRgs6ihLTeSzynzJTg0q0NahEA0bjowM4IIHFKsXR/Hb2dpQrq9e2fDube/p8qu6HAmkNipGrUJ+eMsZZzxwQlSyVtkzZMHw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735926260; c=relaxed/simple; bh=ex2cW5mU/E6fAA+W/k+OvrLTIak6tQKdwMDzL9/VmTI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=RGLCjKCTsf7rf/0cEw5Ymc0ry36kwMinVBHMImfTrm4FNNBJRsdY5ZkSmBKTVdEAegFxPmRbowESigi4JlJ2pU9jt3gKLXJjBXyvTy2beNrY86WKhvy11PSxHoOCXWWep6VhRJ+/8hPy34/FKNUl47BUxL4+ukChY1eDu1FzE64= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=e7dfKc9L; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="e7dfKc9L" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9C88BC4CED6; Fri, 3 Jan 2025 17:44:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1735926259; bh=ex2cW5mU/E6fAA+W/k+OvrLTIak6tQKdwMDzL9/VmTI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=e7dfKc9LBbs8Wmv5ZSOAcOMAI9VAqDjbrtYkn5A85z4azDq2JNjiVPD//CxORn3ta 6Uop6Gjhi0KTg5+K1kU7cYPVCLaXdZdrbhJ2eKeu1VlcrGYq4LNDYbb4hDy6Fyqe37 kjIgj5NXNwzh0TcMweafCE3/jKAghPfv6woal8w7hiCLf/Dw6tCFB6SvWBib5Z8CwX eS1/mmfeJmf70lJ0mre8qE1gmOjkmbXyB3JKwgAc6O6CrJ0q56KFDGKLDYB8wVU//e LMac1HM3Ib+1+pVXBW8wkokXKU9UxUYkVoIr1+GTHGjt/Sz12bGhaw9k2MRimS1H2Q DIbdDtIJYiCfw== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , Jonathan Corbet , damon@lists.linux.dev, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 08/10] Docs/mm/damon/design: document DAMOS regions walking Date: Fri, 3 Jan 2025 09:43:58 -0800 Message-Id: <20250103174400.54890-9-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250103174400.54890-1-sj@kernel.org> References: <20250103174400.54890-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" DAMOS' regions walking is a feature for efficiently retrieving monitoring results or DAMOS-internal behavior. It can be useful for multiple purposes including investigations and tuning. Add a section for it on the design document. Signed-off-by: SeongJae Park --- Documentation/mm/damon/design.rst | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/mm/damon/design.rst b/Documentation/mm/damon/des= ign.rst index 1c8a43b07b00..5385ea04c2fd 100644 --- a/Documentation/mm/damon/design.rst +++ b/Documentation/mm/damon/design.rst @@ -540,6 +540,17 @@ To know how user-space can set the watermarks via :ref= :`DAMON sysfs interface documentation. =20 =20 +Regions Walking +~~~~~~~~~~~~~~~ + +DAMOS feature allowing users access each region that a DAMOS action has ju= st +applied. Using this feature, DAMON :ref:`API ` allows u= sers +access full properties of the regions including the access monitoring resu= lts. +:ref:`DAMON sysfs interface ` also allows users read the = data +via special :ref:`files `. + +.. _damon_design_api: + Application Programming Interface --------------------------------- =20 --=20 2.39.5