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 AB176233955; Tue, 1 Sep 2026 00:47:19 +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=1788223641; cv=none; b=Mf2Gseh0wXFnMcpXaRfWLstQLKUgRPgbrabnStm6pD4kkm7N8lDKmjNt6dGp/OeAJCXQMKVFq0qn7Xh9ZxbSKvCGbkTtByMsP+lmfvx0R4yOIHlhMMIGf0Zp29jVsSg76x3Nb7tV376swGAgE8WwhrFAlaLPOuOGLLK6R+c7TTg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788223641; c=relaxed/simple; bh=RDROc2CqtO/BFFYiNs4coZag/nP0r2uiVlubBK868gg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=YPaiYAWur7GgACj7+YBRqSufQpDs8J+/HagJ4FCjXja66snDEvG40aw4XFpESYjXsn4NlYyArWeePoMDfn2n8XMFXvX1bfcC4Lw0szxlPmyRO01Q7F5rFjl8sCHH/Trt0JuCS7FsqF6o8dQfA8jb39DFHnb4myh8Jp7H4btKZIs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dMFJw5GD; 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="dMFJw5GD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0112D1F000E9; Tue, 1 Sep 2026 00:47:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788223639; bh=LXWsMKMXC2X8nJTY0s4XiZNYUo4FSqt+7Ykdy8yx0Sk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=dMFJw5GDOK1LB/kthZUOEnAAk5yFHCpRNEXKwFWe0eTxnlnOlwLPa3YCrwpIhFsHq AZU1yChW2iRMUoqy6emQhhL1HcXbYi4vQS+HEsm3bQnll0mx7E654PEKh9wQhK32HT 8I21k7vMrAcbErslUCMzEPRID7+x0DTB1sAqR04EM2ytotQM/oj1Z+oPKiVnkCKRhi H+t4LhO4IUfDQnUF0jSi70J3kX06dwGYXEwSOOGPfAGF6CgWzjRfquJ6Zml7WZDUrM GlVw9AP/7sBk58FlJVCULgBNlaoKs9vQ4947f8FCFGA7jOAoRqkBRIBuUXiHkqJjz3 HZN2hkvu8S5NQ== From: SJ Park To: Randy Dunlap Cc: SJ Park , Andrew Morton , Asier Gutierrez , "Liam R. Howlett" , David Hildenbrand , Jonathan Corbet , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , 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 v4 3/3] Docs/mm/damon/design: Document hugepage_mem_bp target metric Date: Mon, 31 Aug 2026 17:47:11 -0700 Message-ID: <20260901004712.89669-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <107dc6ba-697e-4b25-ba3e-8ce2499cac9a@infradead.org> References: Precedence: bulk X-Mailing-List: damon@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Mon, 31 Aug 2026 13:00:26 -0700 Randy Dunlap wrote: > > > On 8/31/26 8:45 AM, Randy Dunlap wrote: > > Hi, > > > > On 8/31/26 7:47 AM, SJ Park wrote: > >> 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 > > > > I've looked thru the entire design.rst file and cannot find anything telling > > me (or anyone) what "bp" means. Explain?? > > OK, I found it on the internet. I still think that it would be a > good idea to say "basis point" one time (the first time that it is used). You are right, and I agree. I will add that clarification before the next merge window. > > > -- > ~Randy Thanks, SJ