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a=ed25519-sha256; t=1773774704; l=825; i=kasong@tencent.com; s=kasong-sign-tencent; h=from:subject:message-id; bh=WP4y9XHEWiYUb4a2CJWiS80eKSpma8CkjsOc7bozYm0=; b=g31dIkTIDAoe+MBcN4ZK5LGx2nUUlTr1S9ZIEF3qT1RdprPhYqv5TpzL2bTnSn2S22d/15tG8 vcDdYbsDHYuD00RXl3abh+rRm7IHz5euwoqKW53MVDa4YC3BLrm/HqQ X-Developer-Key: i=kasong@tencent.com; a=ed25519; pk=kCdoBuwrYph+KrkJnrr7Sm1pwwhGDdZKcKrqiK8Y1mI= X-Endpoint-Received: by B4 Relay for kasong@tencent.com/kasong-sign-tencent with auth_id=562 X-Original-From: Kairui Song Reply-To: kasong@tencent.com X-Rspamd-Queue-Id: 89DB31C0008 X-Stat-Signature: 6ys65eyt6e7q5i38zjjmjz8zgerw7pdo X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1773774708-247180 X-HE-Meta: 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 6m9X3opT aYbSAfjGzgPiWk+U9yErzg3h1bkvC9YPPBA2h7TTLHDnWpz52uSibSQbcjfAVXK8aVyee2fzx8b9hbWXzSGYd+0D1BGfpIVPPAyhPUZO5poeoHrsy6FXvHFibxt2crfhm97swGE8oym3CkFcFM96aL/oKsEGhr0NkstEbjG3RSNsFwmnGQiv/+uQbadGm4zBN9isc/Nc7BH614gq44M2SUEyvz35bpSZIwEQLZO0QQ+9eEIKdAKXZ7GkHehkV6s8PQUOU0d++1Sa1UGQxCCFYIQZUVIP2uWJJQ3yleShaGm4K44qkTcVrsLhHxOa50w7+an3CmKtVxYFCrqoPRVP71zhll2bAMbMgVtRdeVNPg9fP4WKz6jPKtUigGthINVLhD0oJ79ql9cZsGAtiiQvKQ4Z7YbTPAmgMblVmZUf4pAM0DfatMMRLnnq/Yl8Ywhx7igL35LxA+fygquFUGD+c96y8i0mVbcbyMuup1iq4a9R8Vomha++w6Ajhwg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Kairui Song With a fixed number to reclaim calculated at the beginning, making each following step smaller should reduce the lock contention and avoid over-aggressive reclaim of folios, as it will abort earlier when the number of folios to be reclaimed is reached. Signed-off-by: Kairui Song --- mm/vmscan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 4f4548ff3a17..2ff1609ff4de 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -5007,7 +5007,7 @@ static bool try_to_shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc) break; } - nr_batch = min(nr_to_scan, MAX_LRU_BATCH); + nr_batch = min(nr_to_scan, MIN_LRU_BATCH); delta = evict_folios(nr_batch, lruvec, sc, swappiness); if (!delta) break; -- 2.53.0