From patchwork Thu Jun 13 13:17:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Honggyu Kim X-Patchwork-Id: 13696781 Received: from invmail4.hynix.com (exvmail4.hynix.com [166.125.252.92]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 1E62D143C60; Thu, 13 Jun 2024 13:18:11 +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=1718284694; cv=none; b=C5iNf0e76fgNQWWvU0je3iWv6WBWaNj5y8K6+5pk9ugNHjj+YNcug7Lk/3PT0N0Lt2O7rZn7F39C/SKDYsK6MGW052W0aTNt+iB8NMGEVZdzoSe0obBqCCsIF62W2NejvPVaSwOyBiDeWqrDgalTJ70jotKLMNKMRw1bTep4Hdg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718284694; c=relaxed/simple; bh=PBLigDFeoVj/3sesODDma7eu2K0yE9gUuHQjzZnRg4I=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=FFqUD62Nb7spxDnV9z7xxfFibZP1WYf1jNy76qzIN9tgvbnSk95u1gaQaaszgSZuLyy6UakhCunlcbQBONfMZ6W88DGiI3yRNXWYH8u/niTJmMtjep58C3er+v1HA9gRPcnRAPHmrUzGqSYfhuMov0seSe7yHZuayUYDKZkJidU= 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-d6dff70000001748-34-666af18e204d 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 3/8] mm/damon/sysfs-schemes: add target_nid on sysfs-schemes Date: Thu, 13 Jun 2024 22:17:34 +0900 Message-ID: <20240613131741.513-4-honggyu.kim@sk.com> X-Mailer: git-send-email 2.43.0.windows.1 In-Reply-To: <20240613131741.513-1-honggyu.kim@sk.com> References: <20240613131741.513-1-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+NgFnrJLMWRmVeSWpSXmKPExsXC9ZZnkW7fx6w0g49rJS0m9hhYzFm/hs3i /oPX7BZP/v9mtWhoesRicXnXHDaLe2v+s1ocWX+WxWLz2TPMFouXq1ns63jAZHH46xsmBx6P paffsHnsnHWX3aNl3y12j02rOtk8Nn2axO5xYsZvFo8Xm2cyemz8+J/d4/MmuQDOKC6blNSc zLLUIn27BK6M4+vbWAouW1U82vGIsYFxo0EXIyeHhICJxI8n+1hg7Juf5jOD2GwCahJXXk5i 6mLk4BARsJKYtiO2i5GLg1ngGrPE7u6TYDXCAj4S969MZgOpYRFQlWi5GgFi8gqYSmyZngAx UVPi8faf7CA2p4CZxLpv9xlBbCGgko7/z8Cm8AoISpyc+QTsAmYBeYnmrbOZQVZJCLxnk9g4 fQHUaZISB1fcYJnAyD8LSc8sJD0LGJlWMQpl5pXlJmbmmOhlVOZlVugl5+duYgRGwLLaP9E7 GD9dCD7EKMDBqMTD6/EsK02INbGsuDL3EKMEB7OSCO+shUAh3pTEyqrUovz4otKc1OJDjNIc LErivEbfylOEBNITS1KzU1MLUotgskwcnFINjHxMrMyrBbO3m5w9P6/qcM1bS/6lb+Kez7Xh Dnrx63et6Mlvjs4HOFet8ovykyqY/7WxOlO9pkMtYs+O3Nmlix/t7/M3Z1iQ0nD5kvOqKZb6 2/y1r58I0t32+vn/V3HnJ1xze35keZyP/r/6VUpFYp6saafCe3dULQ/lZZwg9Pahy+W/Mmym l5VYijMSDbWYi4oTAWOkM+d8AgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrHLMWRmVeSWpSXmKPExsXCNUNLT7fvY1aaQfciLouJPQYWc9avYbO4 /+A1u8WT/79ZLRqaHrFYfH72mtmi88l3RovDc0+yWlzeNYfN4t6a/6wWR9afZbHYfPYMs8Xi 5WoW+zoeMFkc/vqGyYHfY+npN2weO2fdZfdo2XeL3WPTqk42j02fJrF7nJjxm8XjxeaZjB4b P/5n9/h228Nj8YsPTB6fN8kFcEdx2aSk5mSWpRbp2yVwZRxf38ZScNmq4tGOR4wNjBsNuhg5 OSQETCRufprPDGKzCahJXHk5iamLkYNDRMBKYtqO2C5GLg5mgWvMEru7T4LVCAv4SNy/MpkN pIZFQFWi5WoEiMkrYCqxZXoCxERNicfbf7KD2JwCZhLrvt1nBLGFgEo6/j8Dm8IrIChxcuYT FhCbWUBeonnrbOYJjDyzkKRmIUktYGRaxSiSmVeWm5iZY6pXnJ1RmZdZoZecn7uJERjqy2r/ TNzB+OWy+yFGAQ5GJR5ej2dZaUKsiWXFlbmHGCU4mJVEeGctBArxpiRWVqUW5ccXleakFh9i lOZgURLn9QpPTRASSE8sSc1OTS1ILYLJMnFwSjUwLimsDXa7s64sdW/LCov9ydvW7Wl9qcpe 9IQjqrwuvCTpd/mv1wlLttmVKNpv6yyWV766MmN91u8zG0xL5L9ecZ/1X/CB5xyZ9hjlf/8m 9PnecXI/k8mx7NiFDUHHHbcH77EqvXzgbIuvxjxu05xHnmEzgnR9bNJ3mYWsDQ6+KtVq6Gqx Rn2ZEktxRqKhFnNRcSIA/VO9TnECAAA= X-CFilter-Loop: Reflected From: Hyeongtak Ji This patch adds target_nid under /sys/kernel/mm/damon/admin/kdamonds//contexts//schemes// The 'target_nid' can be used as the destination node for DAMOS actions such as DAMOS_MIGRATE_{HOT,COLD} in the follow up patches. Signed-off-by: Hyeongtak Ji Signed-off-by: Honggyu Kim Signed-off-by: SeongJae Park --- include/linux/damon.h | 11 ++++++++++- mm/damon/core.c | 5 ++++- mm/damon/dbgfs.c | 2 +- mm/damon/lru_sort.c | 3 ++- mm/damon/reclaim.c | 3 ++- mm/damon/sysfs-schemes.c | 33 ++++++++++++++++++++++++++++++++- 6 files changed, 51 insertions(+), 6 deletions(-) diff --git a/include/linux/damon.h b/include/linux/damon.h index f7da65e1ac04..21d6b69a015c 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -374,6 +374,7 @@ struct damos_access_pattern { * @apply_interval_us: The time between applying the @action. * @quota: Control the aggressiveness of this scheme. * @wmarks: Watermarks for automated (in)activation of this scheme. + * @target_nid: Destination node if @action is "migrate_{hot,cold}". * @filters: Additional set of &struct damos_filter for &action. * @stat: Statistics of this scheme. * @list: List head for siblings. @@ -389,6 +390,10 @@ struct damos_access_pattern { * monitoring context are inactive, DAMON stops monitoring either, and just * repeatedly checks the watermarks. * + * @target_nid is used to set the migration target node for migrate_hot or + * migrate_cold actions, which means it's only meaningful when @action is either + * "migrate_hot" or "migrate_cold". + * * Before applying the &action to a memory region, &struct damon_operations * implementation could check pages of the region and skip &action to respect * &filters @@ -410,6 +415,9 @@ struct damos { /* public: */ struct damos_quota quota; struct damos_watermarks wmarks; + union { + int target_nid; + }; struct list_head filters; struct damos_stat stat; struct list_head list; @@ -726,7 +734,8 @@ struct damos *damon_new_scheme(struct damos_access_pattern *pattern, enum damos_action action, unsigned long apply_interval_us, struct damos_quota *quota, - struct damos_watermarks *wmarks); + struct damos_watermarks *wmarks, + int target_nid); void damon_add_scheme(struct damon_ctx *ctx, struct damos *s); void damon_destroy_scheme(struct damos *s); diff --git a/mm/damon/core.c b/mm/damon/core.c index 6392f1cc97a3..c0ec5be4f56e 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -354,7 +354,8 @@ struct damos *damon_new_scheme(struct damos_access_pattern *pattern, enum damos_action action, unsigned long apply_interval_us, struct damos_quota *quota, - struct damos_watermarks *wmarks) + struct damos_watermarks *wmarks, + int target_nid) { struct damos *scheme; @@ -381,6 +382,8 @@ struct damos *damon_new_scheme(struct damos_access_pattern *pattern, scheme->wmarks = *wmarks; scheme->wmarks.activated = true; + scheme->target_nid = target_nid; + return scheme; } diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c index 2461cfe2e968..51a6f1cac385 100644 --- a/mm/damon/dbgfs.c +++ b/mm/damon/dbgfs.c @@ -281,7 +281,7 @@ static struct damos **str_to_schemes(const char *str, ssize_t len, pos += parsed; scheme = damon_new_scheme(&pattern, action, 0, "a, - &wmarks); + &wmarks, NUMA_NO_NODE); if (!scheme) goto fail; diff --git a/mm/damon/lru_sort.c b/mm/damon/lru_sort.c index 3de2916a65c3..3775f0f2743d 100644 --- a/mm/damon/lru_sort.c +++ b/mm/damon/lru_sort.c @@ -163,7 +163,8 @@ static struct damos *damon_lru_sort_new_scheme( /* under the quota. */ "a, /* (De)activate this according to the watermarks. */ - &damon_lru_sort_wmarks); + &damon_lru_sort_wmarks, + NUMA_NO_NODE); } /* Create a DAMON-based operation scheme for hot memory regions */ diff --git a/mm/damon/reclaim.c b/mm/damon/reclaim.c index 9bd341d62b4c..a05ccb41749b 100644 --- a/mm/damon/reclaim.c +++ b/mm/damon/reclaim.c @@ -177,7 +177,8 @@ static struct damos *damon_reclaim_new_scheme(void) /* under the quota. */ &damon_reclaim_quota, /* (De)activate this according to the watermarks. */ - &damon_reclaim_wmarks); + &damon_reclaim_wmarks, + NUMA_NO_NODE); } static void damon_reclaim_copy_quota_status(struct damos_quota *dst, diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c index bea5bc52846a..0632d28b67f8 100644 --- a/mm/damon/sysfs-schemes.c +++ b/mm/damon/sysfs-schemes.c @@ -6,6 +6,7 @@ */ #include +#include #include "sysfs-common.h" @@ -1445,6 +1446,7 @@ struct damon_sysfs_scheme { struct damon_sysfs_scheme_filters *filters; struct damon_sysfs_stats *stats; struct damon_sysfs_scheme_regions *tried_regions; + int target_nid; }; /* This should match with enum damos_action */ @@ -1470,6 +1472,7 @@ static struct damon_sysfs_scheme *damon_sysfs_scheme_alloc( scheme->kobj = (struct kobject){}; scheme->action = action; scheme->apply_interval_us = apply_interval_us; + scheme->target_nid = NUMA_NO_NODE; return scheme; } @@ -1692,6 +1695,28 @@ static ssize_t apply_interval_us_store(struct kobject *kobj, return err ? err : count; } +static ssize_t target_nid_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + struct damon_sysfs_scheme *scheme = container_of(kobj, + struct damon_sysfs_scheme, kobj); + + return sysfs_emit(buf, "%d\n", scheme->target_nid); +} + +static ssize_t target_nid_store(struct kobject *kobj, + struct kobj_attribute *attr, const char *buf, size_t count) +{ + struct damon_sysfs_scheme *scheme = container_of(kobj, + struct damon_sysfs_scheme, kobj); + int err = 0; + + /* TODO: error handling for target_nid range. */ + err = kstrtoint(buf, 0, &scheme->target_nid); + + return err ? err : count; +} + static void damon_sysfs_scheme_release(struct kobject *kobj) { kfree(container_of(kobj, struct damon_sysfs_scheme, kobj)); @@ -1703,9 +1728,13 @@ static struct kobj_attribute damon_sysfs_scheme_action_attr = static struct kobj_attribute damon_sysfs_scheme_apply_interval_us_attr = __ATTR_RW_MODE(apply_interval_us, 0600); +static struct kobj_attribute damon_sysfs_scheme_target_nid_attr = + __ATTR_RW_MODE(target_nid, 0600); + static struct attribute *damon_sysfs_scheme_attrs[] = { &damon_sysfs_scheme_action_attr.attr, &damon_sysfs_scheme_apply_interval_us_attr.attr, + &damon_sysfs_scheme_target_nid_attr.attr, NULL, }; ATTRIBUTE_GROUPS(damon_sysfs_scheme); @@ -2031,7 +2060,8 @@ static struct damos *damon_sysfs_mk_scheme( }; scheme = damon_new_scheme(&pattern, sysfs_scheme->action, - sysfs_scheme->apply_interval_us, "a, &wmarks); + sysfs_scheme->apply_interval_us, "a, &wmarks, + sysfs_scheme->target_nid); if (!scheme) return NULL; @@ -2068,6 +2098,7 @@ static void damon_sysfs_update_scheme(struct damos *scheme, scheme->action = sysfs_scheme->action; scheme->apply_interval_us = sysfs_scheme->apply_interval_us; + scheme->target_nid = sysfs_scheme->target_nid; scheme->quota.ms = sysfs_quotas->ms; scheme->quota.sz = sysfs_quotas->sz;