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Tue, 8 Jul 2025 15:38:24 -0700 (PDT) Date: Tue, 8 Jul 2025 15:38:24 -0700 (PDT) From: "Christoph Lameter (Ampere)" To: David Rientjes cc: Kent Overstreet , Casey Chen , Andrew Morton , surenb@google.com, corbet@lwn.net, dennis@kernel.org, tj@kernel.org, Vlastimil Babka , mhocko@suse.com, jackmanb@google.com, hannes@cmpxchg.org, ziy@nvidia.com, roman.gushchin@linux.dev, harry.yoo@oracle.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, yzhong@purestorage.com, Sourav Panda Subject: Re: [PATCH] alloc_tag: add per-NUMA node stats In-Reply-To: <3c9b5773-83ed-4f13-11a8-fcc162c8c483@google.com> Message-ID: <7a9fc525-7ed5-367c-6504-5ce9ab4520b7@gentwo.org> References: <20250610233053.973796-1-cachen@purestorage.com> <3c9b5773-83ed-4f13-11a8-fcc162c8c483@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: EFA52C000E X-Stat-Signature: pk8bu66sqk84a33n8ikgecnqu1t97cok X-Rspam-User: X-HE-Tag: 1752014305-582648 X-HE-Meta: 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 vVjUXQGu /RpPcG27/hmmq/l+tldzhFigvSQQUNvTfMKAyBj4bgVIiA7/a8XYBWI9TaAVFdVyzH3dydohD3px8YxF3wNpq9xihPG1PXePSlqx1HiFoqaNkYI12MB3DVCuAwCrRNbe8bUHy68Phufu1vzSMMPCoFxLpX4cRf9vxAI4HDCiXyNKylci1uPue4HbhvPO8oORk4gGQrrdDzG1L9PdcA/z+/wY7Ypz42Ul1pJ1JqJTPF6gRQXOfo7W2lzKtBnDLowFk8/XjggfgP/jUPrwlhKXY/9LdJcXrl7rfR6fc+/BBdZgFD74= 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 Tue, 8 Jul 2025, David Rientjes wrote: > Right, per-node memory attribution, or per zone, is very useful. I thought that was already possible using cgroups? That way you have the numbers for an application which may be much more useful.