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 6EDE0306776 for ; Tue, 1 Sep 2026 06:13:46 +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=1788243228; cv=none; b=Xe0rf5MgKlm8o2ZgHPG3dCbOcYHCns+4NxDBWy8W6IUGtKiQezb/JzTGwjVYPmxXXjrEAbXK4xJm/jMF7HA/0B9RjKH4uesvg3HbrtHj6qJmcktCDh+oW6qqq0P+/BTN2lq8lt8qSmdpebBlHqoEsq4+48i1Q4pTi9F42gHGp5k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788243228; c=relaxed/simple; bh=sHXHnXfL+q9gS0pEHqw88Z8Fs3j7NJALVvyZ115ZvSU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WymRYrutmaH6XhlCH9TPjNjOBZf50O329n6pITm78lwe37F6CKtkQJAYBbCqYTGBTesZeei78Clr2mKyICbBO5iHQP2H8AVeIx/5N+gMzEGqgtSu9A7QQ2Zt2d5SY/zLy/Ab/SZzrDo5ABJ5MB1oHA25jq/wC9m1Itk+rFj6DYE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=JyJ+BXPP; 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="JyJ+BXPP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 470EB1F000E9; Tue, 1 Sep 2026 06:13:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788243226; bh=adTR2P64EFni8ZOZywKDurp8df9Iq2ppJ5M7V4Fyra0=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=JyJ+BXPPCoo282jxpZjefVV0JmiR7gzzA0nu5hdAxKJRb/x9QRlXRWAchl6EnE+J9 0VWPJYuFy4mu0yCGNSklTvdDUsU+7CyWN30bSftoEECV4J0EpitkbmzobS2ZhlSDvC ThlhfEFv2G0AA8XUagl2Br9ExBBSmvXnV3qjp2lh2KLuhBXR70AS+XPysU5znyCQ48 eNwU2G4UR9SgtGl+auy1GHIJY8kvWSlPN5UNBT8M/fwcPe9Nsp+LkBoll6PWx8LNgw e+IlXGnqCFW1VLn2DX0bM2UIy10bHPDgreucD2qB7YBbEl6ibwQpcanA//jJsAzZFO /8pvOXxG6QPHg== From: SJ Park To: Andrew Morton Cc: SJ Park , mm-commits@vger.kernel.org, vbabka@kernel.org, surenb@google.com, rppt@kernel.org, rdunlap@infradead.org, mhocko@suse.com, ljs@kernel.org, liam@infradead.org, david@kernel.org, corbet@lwn.net, gutierrez.asier@huawei-partners.com Subject: Re: + mm-damon-introduce-damos_quota_hugepage-auto-tuning.patch added to mm-new branch Date: Mon, 31 Aug 2026 23:13:38 -0700 Message-ID: <20260901061339.117806-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260831232424.6C29F1F000E9@smtp.kernel.org> References: Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hello Andrew, On Mon, 31 Aug 2026 16:24:24 -0700 Andrew Morton wrote: > > The patch titled > Subject: mm/damon: introduce DAMOS_QUOTA_HUGEPAGE auto tuning > has been added to the -mm mm-new branch. Its filename is > mm-damon-introduce-damos_quota_hugepage-auto-tuning.patch [...] > This patch (of 3): > > Introduce DAMOS_QUOTA_HUGEPAGE_MEM_BP auto tuning. Add a new DAMOS quota > goal metric to measure the amount of huge page consumption to total memory > consumption ratio. > > Vmstat may lag, which in some cases may lead to NR_FREE_PAGES being > greater than or equal to the amount of RAM in the system. A guard is > added to avoid the extremely unlikely case [6]. In the case, return 100% > (10000 bp). > > Link: https://lore.kernel.org/20260831144732.80910-1-sj@kernel.org > Link: https://lore.kernel.org/20260831144732.80910-2-sj@kernel.org > Link: https://dl.acm.org/doi/pdf/10.1145/3307650.3322227 [1] > Link: https://lore.kernel.org/e67f05ad-dbb9-45e6-ba30-b167a99ac67d@huawei-partners.com [2] > Link: https://lore.kernel.org/20260616150316.580819-3-gutierrez.asier@huawei-partners.com [3] > Link: https://github.com/asierHuawei/damo/commit/79ae1a4ab1c012a7161db85a000d14f08fa36736 [4] > Link: https://lore.kernel.org/all/03f678dd-9ef3-4b97-b753-c2e4554c5159@huawei-partners.com/ [5] > Link: https://lore.kernel.org/all/20260715151615.99767-1-sj@kernel.org/ [6] > Signed-off-by: Asier Gutierrez > Signed-off-by: SJ Park > Reviewed-by: SJ Park > Cc: David Hildenbrand > Cc: Jonathan Corbet > Cc: Liam R. Howlett > Cc: Lorenzo Stoakes > Cc: Michal Hocko > Cc: Mike Rapoport > Cc: Randy Dunlap > Cc: Suren Baghdasaryan > Cc: Vlastimil Babka > > Signed-off-by: Andrew Morton Seems an empty line before your S-o-b: line is accidentally added. Could we remove that? Thanks, SJ [...]