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31 Jan 2023 12:10:03 -0800 X-QCInternal: smtphost Received: from unknown (HELO nasanex01a.na.qualcomm.com) ([10.52.223.231]) by ironmsg04-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Jan 2023 12:10:03 -0800 Received: from hu-sbhattip-lv.qualcomm.com (10.49.16.6) by nasanex01a.na.qualcomm.com (10.52.223.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.36; Tue, 31 Jan 2023 12:10:03 -0800 Date: Tue, 31 Jan 2023 12:10:01 -0800 From: Sukadev Bhattiprolu To: Roman Gushchin CC: Andrew Morton , Rik van Riel , Roman Gushchin , Vlastimil Babka , Joonsoo Kim , Minchan Kim , Chris Goldsworthy , "Georgi Djakov" , , Subject: Re: [PATCH] mm,page_alloc,cma: configurable CMA utilization Message-ID: <20230131201001.GA8585@hu-sbhattip-lv.qualcomm.com> References: <20230131071052.GB19285@hu-sbhattip-lv.qualcomm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) X-Originating-IP: [10.49.16.6] X-ClientProxiedBy: nalasex01c.na.qualcomm.com (10.47.97.35) To nasanex01a.na.qualcomm.com (10.52.223.231) X-Rspamd-Queue-Id: 778D8C0004 X-Rspamd-Server: rspam09 X-Rspam-User: X-Stat-Signature: th1bz867nthibxd6ybf8w5n545f4dkxo X-HE-Tag: 1675195805-996754 X-HE-Meta: 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 Vjsi4OXq i2C3T53YLIubYEX88kNnGmGPeU7HeRqzgY3lm/R7q8KL31+23N8Ec71DJlIwhz4I3ppDAHrGq6+J2A6Xz7l5Gpa0LbC/9NQjiKbtuiZdv6WYImxKeJuap6Cz6PD3stohRx2liy+MRBkTDbZIqALb25SHmDaWfZ4Psx7FlLPg2ypFtehgAUiQLYcEOwTeHLqruFolJlOWn+YqarmHihlfDCVW7X8J8wLyX2FKS X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Jan 31, 2023 at 10:10:40AM -0800, Roman Gushchin wrote: > Hi Sukadev! > > Can you, please, share a bit more details about your setup? E.g. what is > the zone size, the cma area size and the value you want to set your sysctl to? Hi Roman, I currently have a device with 8GB Zone normal and 600MB of CMA. We have a slightly different implementation and use up all the available CMA region. i.e. going forward, we intend to set the ratio to 100 or even higher. We have other devices with 4GB or less memory but I don't have the CMA size atm. Let me know if you need more info. Thanks! Sukadev