From mboxrd@z Thu Jan 1 00:00:00 1970 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 D890825DD09; Sat, 28 Jun 2025 16:51:59 +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=1751129519; cv=none; b=AF1RmfnrAbFISkS13prnqdDbPuQj/ccNOKn/kcyVouaM35kxwOmg/eJeOFfABjFUFLWivPBfaw1F1AXGvDzp1ktbQ4PLGxrBnm0PM06TLZmuxydNi7qKpmII/0J/K7V9F7nb6a17wQlhrvgxfspa6gYDBTm8OSbaNOOEMT2sRMc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751129519; c=relaxed/simple; bh=fbG+KWln8sAPRrugQfWweISG0dHsqG1V9oMoVBcHL/c=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=ZR+9iUgletjAF5cihr8Ank4RiS/5qK6U09k8Kuhkbv98MQABJxgpGZS3uEFnldAI1R2oteEUgXKLv1UksqCtl1A5xBTwgxCnNXCVBhJeDfEnvhKABw980EIZFEgAdRjzhSp9rmtODNbcrRHF7uuFSefM4BoiPFFgnFzqwH3je3Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DS5QeNIM; 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="DS5QeNIM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 46876C4CEEA; Sat, 28 Jun 2025 16:51:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1751129519; bh=fbG+KWln8sAPRrugQfWweISG0dHsqG1V9oMoVBcHL/c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DS5QeNIM5rDCiErt/eCcWwMgF688xD5WMGg+fgZXgr0iH8Vc2BlIJI2Xo8MJoi/pi SQmYij/3HDK/RMJex+bjiE/yfsXdHLWXMGCq5+BnPqizg1/tu0ZhuuyWrZq50bjQan tvt3PBUq5oXPSXmyB97t17rlKvbiFa2rYhkV0LVoQjBdy4OkMOe88R7SfuyLYLye84 L4gzSp4fdatQmqdN32QeLpODeynJiU4N8Q178q8DfVMO2K4iWh13aMF/DG08xWmcF/ Kj35aPZ1VxuuypVPDslwt12oFLwWHX58mKerXkaA4fgoVePzk6D9hjtYb+WFFjpxlP HPG9Dxbs2UpPg== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , Jonathan Corbet , damon@lists.linux.dev, kernel-team@meta.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH 11/11] Docs/admin-guide/mm/damon/lru_sort: document intervals autotuning Date: Sat, 28 Jun 2025 09:51:44 -0700 Message-Id: <20250628165144.55528-12-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250628165144.55528-1-sj@kernel.org> References: <20250628165144.55528-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Document a newly added DAMON_LRU_SORT module parameter for using monitoring intervals auto-tuning feature of DAMON. Signed-off-by: SeongJae Park --- Documentation/admin-guide/mm/damon/lru_sort.rst | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/admin-guide/mm/damon/lru_sort.rst b/Documentation/admin-guide/mm/damon/lru_sort.rst index ca4e071b3159..f9dfa8255dda 100644 --- a/Documentation/admin-guide/mm/damon/lru_sort.rst +++ b/Documentation/admin-guide/mm/damon/lru_sort.rst @@ -91,6 +91,17 @@ increases and decreases the effective level of the quota aiming the LRU Disabled by default. +Auto-tune monitoring intervals +------------------------------ + +If this parameter is set as ``Y``, DAMON_LRU_SORT automatically tune DAMON's +sampling and aggregation intervals. The auto-tuning aims to capture meaningful +amount of access events in each DAMON-snapshot, while keeping the sampling +interval 5 milliseconds in minimu, and 10 seconds in maximum. Setting this as +``Y`` disables the auto-tuning. + +Disabled by default. + filter_young_pages ------------------ -- 2.39.5