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a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1718284879; 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; bh=W+wH/UsDXMYVoEv5VVlhskRzuD9gwWhPNWSfnhG7wLQ=; b=a5cCwSHARlvv7kdRnyDhxg6JwZXNaq9htqF1cwDQVSdNEswmGT8utgnf8JpdFQiP00C3up PInLX26XIozlu8/ZVAAO9kyJrzl1r17YkWi5+155+bBKqJ4Y0z3RBF14BeQGKVGGGfePnE SzfaGf5zNjjjEliyY8TeJAu5We1UR2c= X-AuditID: a67dfc5b-d6dff70000001748-52-666af24bc2a6 From: Honggyu Kim To: SeongJae Park , damon@lists.linux.dev Cc: Andrew Morton , Masami Hiramatsu , Mathieu Desnoyers , Steven Rostedt , Gregory Price , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, 42.hyeyoo@gmail.com, art.jeongseob@gmail.com, kernel_team@skhynix.com, Hyeongtak Ji , Honggyu Kim Subject: [PATCH v5 6/8] mm/damon/paddr: introduce DAMOS_MIGRATE_HOT action for promotion Date: Thu, 13 Jun 2024 22:20:53 +0900 Message-ID: <20240613132056.608-7-honggyu.kim@sk.com> X-Mailer: git-send-email 2.43.0.windows.1 In-Reply-To: <20240613132056.608-1-honggyu.kim@sk.com> References: <20240613132056.608-1-honggyu.kim@sk.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrNLMWRmVeSWpSXmKPExsXC9ZZnoa73p6w0g3knxCwm9hhYzFm/hs3i /oPX7BZP/v9mtWhoesRicXnXHDaLe2v+s1ocWX+WxWLz2TPMFouXq1ns63jAZHH46xsmBx6P paffsHnsnHWX3aNl3y12j02rOtk8Nn2axO5xYsZvFo8Xm2cyemz8+J/d4/MmuQDOKC6blNSc zLLUIn27BK6MnUefshbsk6i4sPgsawNjp0gXIyeHhICJxKXF81lh7MM3V4PZbAJqEldeTmLq YuTgEBGwkpi2I7aLkYuDWeAas8Tu7pPMIDXCAhES0zqmgdWzCKhKrDn/AMzmFTCV2LF9NRPE TE2Jx9t/soPYnAJmEo/mvmIDsYWAamb8uMoMUS8ocXLmExYQm1lAXqJ562xmkGUSAu/ZJK5c n8UIMUhS4uCKGywTGPlnIemZhaRnASPTKkahzLyy3MTMHBO9jMq8zAq95PzcTYzAKFhW+yd6 B+OnC8GHGAU4GJV4eD2eZaUJsSaWFVfmHmKU4GBWEuGdtRAoxJuSWFmVWpQfX1Sak1p8iFGa g0VJnNfoW3mKkEB6YklqdmpqQWoRTJaJg1OqgXFVyOTfTw12H1t76cWrrGRFS+aPL5K8frC9 DD0X0vLmn/a8xFznjrUKK6N+Gk2+19bzOt/YcNJaXW/m/4FJqonSS+a9aH0RMfeGTlNyfoG4 jdp0tVuV9W8WLT5Y5GJ10Ycna8sV54zD9lbftv6p0VlvcvSGRifjee1l3t3XWt9apPwRuG9f dVKJpTgj0VCLuag4EQBhSAIkfgIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrALMWRmVeSWpSXmKPExsXCNUNLT9f7U1aawY0OLouJPQYWc9avYbO4 /+A1u8WT/79ZLRqaHrFYfH72mtmi88l3RovDc0+yWlzeNYfN4t6a/6wWR9afZbHYfPYMs8Xi 5WoW+zoeMFkc/vqGyYHfY+npN2weO2fdZfdo2XeL3WPTqk42j02fJrF7nJjxm8XjxeaZjB4b P/5n9/h228Nj8YsPTB6fN8kFcEdx2aSk5mSWpRbp2yVwZew8+pS1YJ9ExYXFZ1kbGDtFuhg5 OSQETCQO31zNCmKzCahJXHk5iamLkYNDRMBKYtqO2C5GLg5mgWvMEru7TzKD1AgLREhM65gG Vs8ioCqx5vwDMJtXwFRix/bVTBAzNSUeb//JDmJzCphJPJr7ig3EFgKqmfHjKjNEvaDEyZlP WEBsZgF5ieats5knMPLMQpKahSS1gJFpFaNIZl5ZbmJmjqlecXZGZV5mhV5yfu4mRmC4L6v9 M3EH45fL7ocYBTgYlXh4PZ5lpQmxJpYVV+YeYpTgYFYS4Z21ECjEm5JYWZValB9fVJqTWnyI UZqDRUmc1ys8NUFIID2xJDU7NbUgtQgmy8TBKdXAqJRSWrOBZ839/fr7GQJDP0hFebF8ON1y 2X6D//4ZX53UWdd6dh9Rnu308rBU8ma/V3b/N/+qM0jW2KSUGDTlbGq6R9zni/UXLHaqivot 9o7c2/z4xJrLLW92Kqx9/Ek692mSqUPsBz22VsOyzUrnea4XrK3RyBJ8KvRZ0zay+bPeqQlN ywX1lViKMxINtZiLihMB/G8Z9XMCAAA= X-CFilter-Loop: Reflected X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 36884180007 X-Stat-Signature: bz6x16ockmfmgx77ej4ipnhqcb9irp57 X-Rspam-User: X-HE-Tag: 1718284879-636538 X-HE-Meta: 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 UZPmyYJt CTZVrXpCWhvhZL7T9rEgo5MVIdPXRcyyjU95nytWC4lgPlEFig1pAxqd0fNiCC91aL1gHmqnBKqjDDn+9H7Z9RGD+11+8ev9hL+CnaKGf/QMsFIcWLSttobbkh2PHkQUpksGs5YFD6h8wXYbWb4SnHceoDoRjWKjuOzdEMk7QquKGMt6y0IM60Gca9hf2YjJf2gJbJ2xL/FGNkh0= 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: From: Hyeongtak Ji This patch introduces DAMOS_MIGRATE_HOT action, which is similar to DAMOS_MIGRATE_COLD, but proritizes hot pages. It migrates pages inside the given region to the 'target_nid' NUMA node in the sysfs. Here is one of the example usage of this 'migrate_hot' action. $ cd /sys/kernel/mm/damon/admin/kdamonds/ $ cat contexts//schemes//action migrate_hot $ echo 0 > contexts//schemes//target_nid $ echo commit > state $ numactl -p 2 ./hot_cold 500M 600M & $ numastat -c -p hot_cold Per-node process memory usage (in MBs) PID Node 0 Node 1 Node 2 Total -------------- ------ ------ ------ ----- 701 (hot_cold) 501 0 601 1101 Signed-off-by: Hyeongtak Ji Signed-off-by: Honggyu Kim Signed-off-by: SeongJae Park --- include/linux/damon.h | 2 ++ mm/damon/paddr.c | 3 +++ mm/damon/sysfs-schemes.c | 1 + 3 files changed, 6 insertions(+) diff --git a/include/linux/damon.h b/include/linux/damon.h index 56714b6eb0d7..3d62d98d6359 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -105,6 +105,7 @@ struct damon_target { * @DAMOS_NOHUGEPAGE: Call ``madvise()`` for the region with MADV_NOHUGEPAGE. * @DAMOS_LRU_PRIO: Prioritize the region on its LRU lists. * @DAMOS_LRU_DEPRIO: Deprioritize the region on its LRU lists. + * @DAMOS_MIGRATE_HOT: Migrate the regions prioritizing warmer regions. * @DAMOS_MIGRATE_COLD: Migrate the regions prioritizing colder regions. * @DAMOS_STAT: Do nothing but count the stat. * @NR_DAMOS_ACTIONS: Total number of DAMOS actions @@ -123,6 +124,7 @@ enum damos_action { DAMOS_NOHUGEPAGE, DAMOS_LRU_PRIO, DAMOS_LRU_DEPRIO, + DAMOS_MIGRATE_HOT, DAMOS_MIGRATE_COLD, DAMOS_STAT, /* Do nothing but only record the stat */ NR_DAMOS_ACTIONS, diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index 882ae54af829..af6aac388a43 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -486,6 +486,7 @@ static unsigned long damon_pa_apply_scheme(struct damon_ctx *ctx, return damon_pa_mark_accessed(r, scheme); case DAMOS_LRU_DEPRIO: return damon_pa_deactivate_pages(r, scheme); + case DAMOS_MIGRATE_HOT: case DAMOS_MIGRATE_COLD: return damon_pa_migrate(r, scheme); case DAMOS_STAT: @@ -508,6 +509,8 @@ static int damon_pa_scheme_score(struct damon_ctx *context, return damon_hot_score(context, r, scheme); case DAMOS_LRU_DEPRIO: return damon_cold_score(context, r, scheme); + case DAMOS_MIGRATE_HOT: + return damon_hot_score(context, r, scheme); case DAMOS_MIGRATE_COLD: return damon_cold_score(context, r, scheme); default: diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c index 880015d5b5ea..66fccfa776d7 100644 --- a/mm/damon/sysfs-schemes.c +++ b/mm/damon/sysfs-schemes.c @@ -1458,6 +1458,7 @@ static const char * const damon_sysfs_damos_action_strs[] = { "nohugepage", "lru_prio", "lru_deprio", + "migrate_hot", "migrate_cold", "stat", };