From: Yang Shi <yang.shi@linux.alibaba.com>
To: mhocko@suse.com, mgorman@techsingularity.net, riel@surriel.com,
hannes@cmpxchg.org, akpm@linux-foundation.org,
dave.hansen@intel.com, keith.busch@intel.com,
dan.j.williams@intel.com, fengguang.wu@intel.com,
fan.du@intel.com, ying.huang@intel.com, ziy@nvidia.com
Cc: yang.shi@linux.alibaba.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: [v2 PATCH 9/9] mm: numa: add page promotion counter
Date: Thu, 11 Apr 2019 11:56:59 +0800 [thread overview]
Message-ID: <1554955019-29472-10-git-send-email-yang.shi@linux.alibaba.com> (raw)
In-Reply-To: <1554955019-29472-1-git-send-email-yang.shi@linux.alibaba.com>
Add counter for page promotion for NUMA balancing.
Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com>
---
include/linux/vm_event_item.h | 1 +
mm/huge_memory.c | 4 ++++
mm/memory.c | 4 ++++
mm/vmstat.c | 1 +
4 files changed, 10 insertions(+)
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index 499a3aa..9f52a62 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -51,6 +51,7 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
NUMA_HINT_FAULTS,
NUMA_HINT_FAULTS_LOCAL,
NUMA_PAGE_MIGRATE,
+ NUMA_PAGE_PROMOTE,
#endif
#ifdef CONFIG_MIGRATION
PGMIGRATE_SUCCESS, PGMIGRATE_FAIL,
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 0b18ac45..ca9d688 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1609,6 +1609,10 @@ vm_fault_t do_huge_pmd_numa_page(struct vm_fault *vmf, pmd_t pmd)
migrated = migrate_misplaced_transhuge_page(vma->vm_mm, vma,
vmf->pmd, pmd, vmf->address, page, target_nid);
if (migrated) {
+ if (!node_state(page_nid, N_CPU_MEM) &&
+ node_state(target_nid, N_CPU_MEM))
+ count_vm_numa_events(NUMA_PAGE_PROMOTE, HPAGE_PMD_NR);
+
flags |= TNF_MIGRATED;
page_nid = target_nid;
} else
diff --git a/mm/memory.c b/mm/memory.c
index 01c1ead..7b1218b 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3704,6 +3704,10 @@ static vm_fault_t do_numa_page(struct vm_fault *vmf)
/* Migrate to the requested node */
migrated = migrate_misplaced_page(page, vma, target_nid);
if (migrated) {
+ if (!node_state(page_nid, N_CPU_MEM) &&
+ node_state(target_nid, N_CPU_MEM))
+ count_vm_numa_event(NUMA_PAGE_PROMOTE);
+
page_nid = target_nid;
flags |= TNF_MIGRATED;
} else
diff --git a/mm/vmstat.c b/mm/vmstat.c
index d1e4993..fd194e3 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1220,6 +1220,7 @@ int fragmentation_index(struct zone *zone, unsigned int order)
"numa_hint_faults",
"numa_hint_faults_local",
"numa_pages_migrated",
+ "numa_pages_promoted",
#endif
#ifdef CONFIG_MIGRATION
"pgmigrate_success",
--
1.8.3.1
next prev parent reply other threads:[~2019-04-11 3:58 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-11 3:56 [v2 RFC PATCH 0/9] Another Approach to Use PMEM as NUMA Node Yang Shi
2019-04-11 3:56 ` [v2 PATCH 1/9] mm: define N_CPU_MEM node states Yang Shi
2019-04-11 3:56 ` [v2 PATCH 2/9] mm: page_alloc: make find_next_best_node find return cpuless node Yang Shi
2019-04-11 3:56 ` [v2 PATCH 3/9] mm: numa: promote pages to DRAM when it gets accessed twice Yang Shi
2019-04-11 3:56 ` [v2 PATCH 4/9] mm: migrate: make migrate_pages() return nr_succeeded Yang Shi
2019-04-11 3:56 ` [v2 PATCH 5/9] mm: vmscan: demote anon DRAM pages to PMEM node Yang Shi
2019-04-11 14:31 ` Dave Hansen
2019-04-15 22:10 ` Yang Shi
2019-04-15 22:14 ` Dave Hansen
2019-04-15 22:26 ` Yang Shi
2019-04-11 3:56 ` [v2 PATCH 6/9] mm: vmscan: don't demote for memcg reclaim Yang Shi
2019-04-11 3:56 ` [v2 PATCH 7/9] mm: vmscan: check if the demote target node is contended or not Yang Shi
2019-04-11 16:06 ` Dave Hansen
2019-04-15 22:06 ` Yang Shi
2019-04-15 22:13 ` Dave Hansen
2019-04-15 22:23 ` Yang Shi
2019-04-11 3:56 ` [v2 PATCH 8/9] mm: vmscan: add page demotion counter Yang Shi
2019-04-11 3:56 ` Yang Shi [this message]
2019-04-11 14:28 ` [v2 RFC PATCH 0/9] Another Approach to Use PMEM as NUMA Node Dave Hansen
2019-04-12 8:47 ` Michal Hocko
2019-04-16 0:09 ` Yang Shi
2019-04-16 7:47 ` Michal Hocko
2019-04-16 14:30 ` Dave Hansen
2019-04-16 14:39 ` Michal Hocko
2019-04-16 15:46 ` Dave Hansen
2019-04-16 18:34 ` Michal Hocko
2019-04-16 15:33 ` Zi Yan
2019-04-16 15:55 ` Dave Hansen
2019-04-16 16:12 ` Zi Yan
2019-04-16 19:19 ` Yang Shi
2019-04-16 21:22 ` Dave Hansen
2019-04-16 21:59 ` Yang Shi
2019-04-16 23:04 ` Dave Hansen
2019-04-16 23:17 ` Yang Shi
2019-04-17 15:13 ` Keith Busch
2019-04-17 9:23 ` Michal Hocko
2019-04-17 15:23 ` Keith Busch
2019-04-17 15:39 ` Michal Hocko
2019-04-17 15:37 ` Keith Busch
2019-04-17 16:39 ` Michal Hocko
2019-04-17 17:26 ` Yang Shi
2019-04-17 17:29 ` Keith Busch
2019-04-17 17:51 ` Michal Hocko
2019-04-18 16:24 ` Yang Shi
2019-04-17 17:13 ` Dave Hansen
2019-04-17 17:57 ` Michal Hocko
2019-04-18 18:16 ` Keith Busch
2019-04-18 19:23 ` Yang Shi
2019-04-18 21:07 ` Zi Yan
2019-04-16 23:18 ` Yang Shi
2019-04-17 9:17 ` Michal Hocko
2019-05-01 6:43 ` Fengguang Wu
2019-04-17 20:43 ` Yang Shi
2019-04-18 9:02 ` Michal Hocko
2019-05-01 5:20 ` Fengguang Wu
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