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Mon, 28 Jul 2025 11:00:03 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id pVh7CDNYh2h9TAAAD6G6ig (envelope-from ); Mon, 28 Jul 2025 11:00:03 +0000 Message-ID: Date: Mon, 28 Jul 2025 13:00:02 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: =?UTF-8?Q?Re=3A_=5BPATCH=5D_mm=3A_limit_THP_alignment_=E2=80=93_per?= =?UTF-8?Q?formance_gain_observed_in_AI_inference_workloads?= Content-Language: en-US To: Dev Jain , Lorenzo Stoakes , siddhartha@kenip.in References: <5816677a-705e-4a8f-b598-d74ff6198a02@arm.com> <80b849d4-faf3-47a9-8b8c-e8053299cfb2@arm.com> <2e99712b-8dac-4762-9fc5-fe3ef569b65e@lucifer.local> <787639a1e6a27c0f3b0e3ae658e1b8e7@kenip.in> <5c3d307f-d303-48c3-b730-99a83d4815ec@lucifer.local> <6eaaa2e4-9067-47bc-8dd4-d8ef56c26b3b@arm.com> <5D015E99-474A-4D98-8C43-488A46BEB2F5@nvidia.com> <57c50dbbccf38a97e6e9cbb3f2f75f01@kenip.in> From: Vlastimil Babka Cc: Zi Yan , "linux-mm@kvack.org" , LKML Autocrypt: addr=vbabka@suse.cz; 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charset=UTF-8 Content-Transfer-Encoding: 8bit X-Stat-Signature: ozcyeq3weh4z3nzensunhtqh7gy1m5ic X-Rspam-User: X-Rspamd-Queue-Id: 22150180011 X-Rspamd-Server: rspam02 X-HE-Tag: 1753700405-645615 X-HE-Meta: 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 QjSdJm2g WP+Ry/+T55Tib4TFzC8juiOYQZitYIfdKFvfmZ5U0mQJxnXH6OZZryCsEG6zMSCcCqiLbCH9Z127b9oa3Gh5mBamKmZf/6hLmhpgWV3zSbcu8WC1+04t+BYWO28YyRbCdrn56xfxDYSCv5kjx1fppWrAV8PQsD3m5tRiFIKQ1Mrn0ImpFV+JLLru9NEF9730QOE500JU9RCKrPJ8s4dCfn4W9bsr0xFWL6dnRdZjrmAWTl7BOPU/BP/IgFckx2ZsddQ/Xh0qSrxXHrgZYzGoh+vkD1dqm6dfJJEN2R44o33PJdRAKTnRtSrVo1GAcybHUfVJCgxqZSVv6K3dquKf7QC+9pQ== 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 7/28/25 07:41, siddhartha@kenip.in wrote: > On 2025-07-07 14:26, Vlastimil Babka wrote: > Hi Lorenzo, Dev, Mel, > > I'm following up on this patch submission from earlier this month: > "[PATCH] mm: limit THP alignment – performance gain observed in AI > inference workloads." I'm confused. That wasn't a patch submission, but reporting performance results for my patch from late 2024? (and thanks for those!) The patch was also already merged in late 2024: commit d4148aeab412432bf928f311eca8a2ba52bb05df Author: Vlastimil Babka Date: Thu Oct 24 17:12:29 2024 +0200 mm, mmap: limit THP alignment of anonymous mappings to PMD-aligned sizes So there's nothing more to do here AFAIK.