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From: SeongJae Park <sj@kernel.org>
Cc: SeongJae Park <sj@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	damon@lists.linux.dev, kernel-team@meta.com,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [RFC PATCH 05/11] mm/damon/lru_sort: consider age for quota prioritization
Date: Sat, 28 Jun 2025 09:51:38 -0700	[thread overview]
Message-ID: <20250628165144.55528-6-sj@kernel.org> (raw)
In-Reply-To: <20250628165144.55528-1-sj@kernel.org>

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
the prioritization, too.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
 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 4af8fd4a390b..7513ebc6aeef 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);
 
-- 
2.39.5


  parent reply	other threads:[~2025-06-28 16:52 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-28 16:51 [RFC PATCH 00/11] mm/damon: advance DAMOS-based LRU sorting SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 01/11] mm/damon/core: introduce [in]active memory ratio damos quota goal metric SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 02/11] mm/damon/sysfs-schemes: support DAMOS_QUOTA_[IN]ACTIVE_MEM_BP SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 03/11] Docs/mm/damon/design: document DAMOS_QUOTA_[IN]ACTIVE_MEM_BP SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 04/11] mm/damon/paddr: activate DAMOS_LRU_PRIO targets instead of marking accessed SeongJae Park
2025-06-28 16:51 ` SeongJae Park [this message]
2025-06-28 16:51 ` [RFC PATCH 06/11] mm/damon/lru_sort: support young page filters SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 07/11] Docs/admin-guide/mm/damon/lru_sort: document filter_young_pages SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 08/11] mm/damon/lru_sort: support active:inactive memory ratio based auto-tuning SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 09/11] Docs/admin-guide/mm/damon/lru_sort: document active_mem_bp parameter SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 10/11] mm/damon/lru_sort: add monitoring intervals auto-tuning parameter SeongJae Park
2025-06-28 16:51 ` [RFC PATCH 11/11] Docs/admin-guide/mm/damon/lru_sort: document intervals autotuning SeongJae Park

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