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[96.255.20.138]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-4ffa8e4c810sm149855661cf.24.2026.01.13.06.25.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Jan 2026 06:25:16 -0800 (PST) Date: Tue, 13 Jan 2026 09:24:42 -0500 From: Gregory Price To: Bharata B Rao Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Jonathan.Cameron@huawei.com, dave.hansen@intel.com, mgorman@techsingularity.net, mingo@redhat.com, peterz@infradead.org, raghavendra.kt@amd.com, riel@surriel.com, rientjes@google.com, sj@kernel.org, weixugc@google.com, willy@infradead.org, ying.huang@linux.alibaba.com, ziy@nvidia.com, dave@stgolabs.net, nifan.cxl@gmail.com, xuezhengchu@huawei.com, yiannis@zptcorp.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, shivankg@amd.com Subject: Re: [RFC PATCH v4 0/9] mm: Hot page tracking and promotion infrastructure Message-ID: References: <20251206101423.5004-1-bharata@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251206101423.5004-1-bharata@amd.com> X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 8803A40003 X-Stat-Signature: oqfin3xab3kj4iqk7z9abzmk4fbti1ub X-Rspam-User: X-HE-Tag: 1768314318-107143 X-HE-Meta: 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 u/KpEKqR t1Qk7DaFl/+TGv6PKGYlLh1qom0rtrAz3DRm+q5Risf/VszsEla4F3Z1Fb1ySyEdAgoTpDmNCbN/mrvY7K2W12J5Wfho6at1niqcs/3abZi7uBF2Ul+G4ljy+/LZKvZ9XuYGDwAkFfUHInhvjmNvNTBfY398YBD7/ZOY5ONKP4lKMnvR0tyiQnFwtrMW3y1UoxvO3nAZTvDVGAJvWzviF69eXii9ORBsadrUyJy7M1Fm6HExOQ/UC7PQmtTi99bDuP5cYo/MaPm8BF0UjRVO05o827sizXktxEgmQv7PLWQuIgLiMx64ilbQ4vsHCVgg4cxcQTyyhIMlnXwZNP/cgJnpU8ezJ6UKwypzauBZGR0KxzJPStVbXd5TZX2nHah5B6r39jXRXWk2YtV7+uo174dgiCA== 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 Sat, Dec 06, 2025 at 03:44:14PM +0530, Bharata B Rao wrote: > Hi, > > This is v4 of page hotness tracking and promotion sub-system pghot. > Just fyi, we haven't started real workload testing, but we're setting up the process soon. Just wanted to let you know it's on the radar. We want to test this at the same time with some fixes we've been working on for multi-tenant fairness in the demotion/reclaim path. ~Gregory