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[96.255.20.138]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-4e8af0126a9sm51384451cf.12.2025.10.20.08.05.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Oct 2025 08:05:59 -0700 (PDT) Date: Mon, 20 Oct 2025 11:05:57 -0400 From: Gregory Price To: Jonathan Cameron Cc: Yiannis Nikolakopoulos , Wei Xu , David Rientjes , Matthew Wilcox , Bharata B Rao , linux-kernel@vger.kernel.org, linux-mm@kvack.org, dave.hansen@intel.com, hannes@cmpxchg.org, mgorman@techsingularity.net, mingo@redhat.com, peterz@infradead.org, raghavendra.kt@amd.com, riel@surriel.com, sj@kernel.org, ying.huang@linux.alibaba.com, ziy@nvidia.com, dave@stgolabs.net, nifan.cxl@gmail.com, xuezhengchu@huawei.com, akpm@linux-foundation.org, david@redhat.com, byungchul@sk.com, kinseyho@google.com, joshua.hahnjy@gmail.com, yuanchu@google.com, balbirs@nvidia.com, alok.rathore@samsung.com, yiannis@zptcorp.com, Adam Manzanares Subject: Re: [RFC PATCH v2 0/8] mm: Hot page tracking and promotion infrastructure Message-ID: References: <20250910144653.212066-1-bharata@amd.com> <7e3e7327-9402-bb04-982e-0fb9419d1146@google.com> <20250917174941.000061d3@huawei.com> <5A7E0646-0324-4463-8D93-A1105C715EB3@gmail.com> <20250925160058.00002645@huawei.com> <20251020152345.00003d61@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251020152345.00003d61@huawei.com> X-Stat-Signature: asbdsmrrejbom6khakhmfiqba7anc44j X-Rspamd-Queue-Id: 603864000F X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1760972761-3090 X-HE-Meta: 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 fdwfkrwZ RmNvlUSvfbQ04G2eQNJYwWje4Q4bivibM1RlSPrCIogExzQLy13enhXsSBSCr8Y7HcRr28rBC5QxF0TUpWFhB5Nf/wUdWw/xLRRURpGnh+c8JPA6ssezs8rsMzhC9JbRCg+d4im1nd0dAs8ioLAFyDPNugs0Bz313wSmci9rpLf/mrFXzRf/rPsMmz1oxyqYnkoe+iXzzmAltXmV3GLQimmtrsyoR486CEsulh1n3tKq7l5iwfEWPdHLbHv8AG5M++GRRvFug8zNdXjd9/FrlBSZhIwXKoOrO4TxQDfAMSqAfBnHLSJcX6EpiwhuUURx98gdSg0Jv/QotNhat26m1pk3VVLVMoeKp0u2Ig5Q8omK63GcJXXMLNcs9cu4PgbcFDzOfaWCkxCmwRdJ7XqR3mVIILlcDZBhcyxvrrB+bVe1lp0A= 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: List-Subscribe: List-Unsubscribe: On Mon, Oct 20, 2025 at 03:23:45PM +0100, Jonathan Cameron wrote: > On Thu, 16 Oct 2025 18:16:31 +0200 > Yiannis Nikolakopoulos wrote: > > > These could be good starting points, as I see in the rest of the thread. > > > Fun problems. Maybe we start with very conservative handling and then > argue for relaxations later. > Not to pile on, but if we can't even manage the conservative handling due to other design issues - then it doesn't bode well for the rest. So getting that right should be the priority - not a maybe. ~Gregory