From patchwork Thu Jun 13 13:20:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Honggyu Kim X-Patchwork-Id: 13696789 Received: from invmail4.hynix.com (exvmail4.skhynix.com [166.125.252.92]) by smtp.subspace.kernel.org (Postfix) with ESMTP id DC4E1145343; Thu, 13 Jun 2024 13:21:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=166.125.252.92 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718284880; cv=none; b=ll1jaWX3fFlJHAJswPb52U1FzbUE/9N2tlhAiKlRNJhgxlb1gO1U/3TQfhQfKWJ+IY1ZVKv3EFQqL7kGjWKNOMsrHZs+sqoFnLRlVuuPfmAUfIKYdw+lFSX0m66ANVKxcnJZ3/P0UMP0Gnc7aJfawAnYkYPFu1YzEEGiEz+DhEQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718284880; c=relaxed/simple; bh=/fG6BOMu3pDqWuzCvSk+FHfqzO4oGlow/E9AiQiJ9Bs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=a4GemkJKqyWBANvxbIHBtH0YjkNTX+ODlL+D+o0ZfL8yT2Os8K8vyGRWu8+f4YEcsKc3ikBykkmdRH+doohKVADzadUSHFLymZQApNcikY0H3SyVp3GCZES1gSXZQ1PMmMba42UzKAS955RjrtYb0D/+QG9IlShO5M6XQFZiQUM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sk.com; spf=pass smtp.mailfrom=sk.com; arc=none smtp.client-ip=166.125.252.92 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sk.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sk.com 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> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 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", };