From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 031423515D9; Fri, 11 Sep 2026 14:29:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789136942; cv=none; b=kipjwX4CF02h2N/MrqhvYtkAi1o22JVAFqqRMTs6NfZE15zeicQQHZkRzX85g0Y4yeL1J79BWXqDRTgA9Zbl6proLH8VCoKXKTwDx8+UyaVjPtuk8v0QoU3me3HAk8T02aQNS4sWtjmrlrWi8pAbyupUb0Wk4Cy0iO9QX761LyI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789136942; c=relaxed/simple; bh=laIdwsrNw+PQjJ2oqKPR+44PdWcQvsmOc/B7gNQRYro=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=VhBcxPbaq2BRX2BsacGoKKoVkz6p0m7COBHP5Xa4Cw7z3M4A5lKvoZ3VC3U1WL9jkqIApaz9qSKtAB/akAJb1dPxWNwL8psiDruonbZCbhAnDQbmdtzrFR/4nXkmCw6O5QgCCBcrbJz4WnuvLJ+Q1/YZW84ayYh3VTR2lR44r6w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bD1M6nDs; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="bD1M6nDs" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DBBE21F00893; Fri, 11 Sep 2026 14:28:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789136940; bh=0+imRWCTv6smcDNW//4365ucDiUEC8sAvOg5IdNe59U=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=bD1M6nDshZEVXr+zFg8cAzmUh5bAdEXi7GQkHl2Re16P6383OWnqmoO8NEtKOgEIX Dah2KCz4CUVivNTolTFCCZWU8NraTm8iVHKOxA5RSuMDdyY/iDCXVxvQ5PkwSrAtqi yj79boC2n3vYk/5nt3oxrGq1K1cE2Z/JVdI8ORZGVv5UsPQyj/K22FJN9J3axvOT94 97nUl6QUb5M5c9UMQ13YUV1HRht1VXgndRk/6lpGzr94wZmidlgLWOSqiXLnae6ss0 gNH33cr5ey0+btv9y0d6DOXmi69b3i0cmpDjzz5F+Wa1yMifs/STNghRfHPzzchcXC uk8VQsIPls4Zw== From: SJ Park To: SJ Park Cc: Andrew Morton , "Liam R. Howlett" , David Hildenbrand , Jonathan Corbet , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Randy Dunlap , 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: Re: [PATCH v2 0/7] mm/damon: introduce probe_hits_wsum DAMOS core filter Date: Fri, 11 Sep 2026 07:28:52 -0700 Message-ID: <20260911142852.98297-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260911135510.96914-1-sj@kernel.org> References: Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Fri, 11 Sep 2026 06:55:02 -0700 SJ Park wrote: > DAMON can do flexible data attributes monitoring. The classical data > access monitoring can also be done using the attributes monitoring. The > access event is just one of the data attributes that DAMON supports. > Users do monitoring to make some actions based on it. DAMOS is a > feature for automating that. However, DAMOS cannot utilize the data > attributes monitoring results. It is still Data "Access" > Monitoring-based Operation Schemes. It requires users to set the target > "access" pattern. > > DAMOS core filter is effectively the same as the target access pattern. > It is just a more generalized and flexible way of describing the > operation action target region. Introduce a new DAMOS core filter type, > probe_hits_wsum. It specifies the filter target based on a range of the > probe hits weighted sum. Using this, users can apply DAMOS actions to > regions of specific data attributes pattern. Sashiko found no blocker for this series but a minor documentation issue that better to be clearified. Because it is too trivial for reposting entire series in my opinion, I asked Andrew to pick a fixup [1] for that together. Sashiko send its findings to damon@ mailing list [2], and I reply those if anything needs to be clarified. Please refer to those for details. [1] https://lore.kernel.org/20260911142522.98013-1-sj@kernel.org [2] https://lore.kernel.org/damon/ Thanks, SJ [...]