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Wed, 15 Jul 2026 07:16:44 -0700 (PDT) Date: Wed, 15 Jul 2026 16:16:43 +0200 From: Johannes Weiner To: Usama Arif Cc: Andrew Morton , david@kernel.org, ljs@kernel.org, liam@infradead.org, vbabka@kernel.org, rppt@kernel.org, surenb@google.com, mhocko@suse.com, kasong@tencent.com, qi.zheng@linux.dev, shakeel.butt@linux.dev, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, chrisl@kernel.org, nphamcs@gmail.com, baoquan.he@linux.dev, youngjun.park@lge.com, roman.gushchin@linux.dev, muchun.song@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, rientjes@google.com, kernel-team@meta.com Subject: Re: [PATCH v2 2/2] mm/vmscan: reduce lru_lock contention via vmstat-derived scan-balance cost Message-ID: <20260715141643.GQ276793@cmpxchg.org> References: <20260713163443.3562378-1-usama.arif@linux.dev> <20260713163443.3562378-3-usama.arif@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260713163443.3562378-3-usama.arif@linux.dev> On Mon, Jul 13, 2026 at 09:34:17AM -0700, Usama Arif wrote: > @@ -323,6 +323,10 @@ enum node_stat_item { > PGSCAN_PROACTIVE, > PGSCAN_ANON, > PGSCAN_FILE, > + PGRECLAIM_PAGEOUT_ANON, > + PGRECLAIM_PAGEOUT_FILE, Reclaim generally doesn't write files (anymore). You can use NR_VMSCAN_WRITE for the anon counts.