From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 14C59D2F338 for ; Tue, 13 Jan 2026 15:27:46 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 16BEA6B0092; Tue, 13 Jan 2026 10:27:35 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 0A23A6B0096; Tue, 13 Jan 2026 10:27:34 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D1D766B0092; Tue, 13 Jan 2026 10:27:34 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id AF0B86B0095 for ; Tue, 13 Jan 2026 10:27:34 -0500 (EST) Received: from smtpin24.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 702F4C08D5 for ; Tue, 13 Jan 2026 15:27:34 +0000 (UTC) X-FDA: 84327320028.24.0DF8FA9 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf18.hostedemail.com (Postfix) with ESMTP id C1AED1C0007 for ; Tue, 13 Jan 2026 15:27:32 +0000 (UTC) Authentication-Results: imf18.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=TQwLD6Yq; spf=pass (imf18.hostedemail.com: domain of sj@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1768318052; a=rsa-sha256; cv=none; b=s+yd4mtJEfWeO/8DpFLaSJwTwBj4kPpP6XNRqBWNBHzu3Tv4hgp7WsiMvx36KEsZv72opz odASxLA2umf6D09HXZocUMgg534HpTvr/rfL692GpbafMH/xwSskax0aGSsOD93bhcqBAS Vpv5JO/rMq3NwvvkfILIOxsPbKTlLWc= ARC-Authentication-Results: i=1; imf18.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=TQwLD6Yq; spf=pass (imf18.hostedemail.com: domain of sj@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1768318052; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=JF0IUQ068r+1d4jlHQLBlB0OX3AiXL83Tl7dFt/sDM4=; b=Bsj3z7ZLnLokzmeH8v6o+tjh7AWK3nHg7dtfEgeqkoHCtLbvcuQTylhs2ht0WDkPOAiPnU /EB21sLcApdM59K/Pj1D4mVZKLH0T1YwKFlquLlmY4jQeoTZeu9Q66G0MRsTzlPHtK3gIT 3QSF7FNt6MC54XkA4kcmsjvCkxtejkY= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id F3B5544419; Tue, 13 Jan 2026 15:27:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C3778C2BC87; Tue, 13 Jan 2026 15:27:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768318051; bh=u9BpClkZFdNL3P8/T2nVybp/XhQM1COhsP+bLP+TFE4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TQwLD6YquT6NgnNQ84Kx8u7TWgMhbpMmt3X9fEodCwRYUsC9TaiBlzVw/KmPmmtNw 1uII382sK4yne5J+fP75WQWpKjrs847Il9tU6TVwhj3ZkqWDU6trZ9l3kTyh6RFVZq vbbSqe4dEk1gvxU4hzdxMa+eAzna3Z1H6u97Y4GII2PQoTkUBtfPxzGq485BQxg5v6 Ega6oOwSY7lWyVFPh42UnaMj5FH8ZKnGua+4N/yiHbsxP8nVfQoHX5COyAAUeQOpr7 +F6Wa14h2HHNqnQ6QnbYITbui3f1pqJa3v/SGtfPe8MpJL6zoDbGhlWgv9IwAqNkFZ SGvlIBXdiA08Q== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 05/11] mm/damon/lru_sort: consider age for quota prioritization Date: Tue, 13 Jan 2026 07:27:10 -0800 Message-ID: <20260113152717.70459-6-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260113152717.70459-1-sj@kernel.org> References: <20260113152717.70459-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: C1AED1C0007 X-Stat-Signature: zk7it8ubiouctmqwgsrk37dqw5zd4bgk X-Rspam-User: X-HE-Tag: 1768318052-405749 X-HE-Meta: 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 9xMBKuBp 0zr5FqXmZs9dawK61EJ4RmXhS1w78kskm7bdbyTTYf+wH7sn3SM5g2cOhXI43K4BiyYu87sy0AxEYGWnxr1RZJ2Tl1YUwAYo/w1AHUbTJJbUmlWJ3/MgdYflWLpvslx6eQmIazIH2xE8CHz1DlGwVmkxGIy/ul79xDeUaABtAu+XoNNgjBzzWwqTcwUlKGEeJJTU2VO8IgRVC3o0VXISgcRfyBXqaviggTUfq1w16DcasbfIKPkAQ4e7gp8NU+6bZ698QB2YMJ5m8koevahVl2rZA1YvoTyLVyhTs9mUevBb7NHI= 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: DAMON_LRU_SORT is doing under-quota access pattern based regions prioritization using only access frequency. Age of regions is another useful information for distinguishing hot and cold regions. Use it for prioritization, too. Signed-off-by: SeongJae Park --- mm/damon/lru_sort.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/damon/lru_sort.c b/mm/damon/lru_sort.c index 9388b091deb7..a74c4ec170a9 100644 --- a/mm/damon/lru_sort.c +++ b/mm/damon/lru_sort.c @@ -71,7 +71,7 @@ static struct damos_quota damon_lru_sort_quota = { /* Within the quota, mark hotter regions accessed first. */ .weight_sz = 0, .weight_nr_accesses = 1, - .weight_age = 0, + .weight_age = 1, }; DEFINE_DAMON_MODULES_DAMOS_TIME_QUOTA(damon_lru_sort_quota); -- 2.47.3