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[109.81.81.112]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6a3ff16c2cbsm6285973a12.22.2026.08.21.04.20.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Aug 2026 04:20:19 -0700 (PDT) Date: Fri, 21 Aug 2026 13:20:18 +0200 From: Michal Hocko To: Ridong Chen Cc: Andrew Morton , Johannes Weiner , David Hildenbrand , Qi Zheng , Shakeel Butt , Lorenzo Stoakes , Kairui Song , Barry Song , Axel Rasmussen , Yuanchu Xie , Wei Xu , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Ridong Chen Subject: Re: [RFC PATCH 0/4] mm/vmscan: honour node reclaim limits per type Message-ID: References: <20260821081741.1340277-1-ridong.chen@linux.dev> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Rspamd-Queue-Id: A56C4140003 X-Rspamd-Server: rspam07 X-Stat-Signature: 7s33xdwyyzdjrwwkaxd6x6bgroazwp8x X-HE-Tag: 1787311221-816851 X-HE-Meta: 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 PHVj6R7U 66vX8LyP9EoDapnyNDRWJtyeOMYWk4jKb67XTnywe0+0ouxvsWS1a4lXKS4Pl3VUyi24J8mzLkqWFSWru8wQyNL/V5vNUCfXzAEr5rQkkAzZ4laMuMkG3KvvjNs95Ms8VMLt3XrJPI6m3Cki+ojLVblIlhMMd1K4kdhU+TJawCTLjf/a6Pj7Etj+HNIzUvNNunJQlqJviNLPT4TqhEcb3KTqlD9X+IVfvKgXTfkdFwEi0AmvT4cBZO5qHaj/5O4o8eUQUwDIX5tsV19Yd8QMiToaM6J4DZbKdjc8Z7Mt6UK8KORJ9hhfMtPBNTL3aU1eVW4FmkuzC0T9lXAzfph88tC23pkdMw/BhWg30vOndRI9QoC/clzPZx+6E/TqPWEoOOLfO Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri 21-08-26 19:10:45, Ridong Chen wrote: > > > Did you mean that min_slab_pages and min_unmapped_pages should influence > > > proactive per-node reclaim? > > > > Nope, exactly opposite > > > > I would really appreciate it if you could clarify this further. Sorry, I'm > not sure I fully understand what you meant. pro-active (userspace triggered) node reclaim should completely ignore all those historical node_reclaim tunables. -- Michal Hocko SUSE Labs