The patch titled
Subject: mm: memcg: export workingset refault stats for cgroup v1
has been added to the -mm mm-unstable branch. Its filename is
mm-memcg-export-workingset-refault-stats-for-cgroup-v1.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-memcg-export-workingset-refault-stats-for-cgroup-v1.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Yang Shi <shy828301@xxxxxxxxx>
Subject: mm: memcg: export workingset refault stats for cgroup v1
Date: Tue, 16 Aug 2022 11:58:01 -0700
Workingset refault stats are important and useful metrics to measure how
well reclaimer and swapping work and how healthy the services are, but
they are just available for cgroup v2. There are still plenty users with
cgroup v1, export the stats for cgroup v1.
Link: https://lkml.kernel.org/r/20220816185801.651091-1-shy828301@xxxxxxxxx
Signed-off-by: Yang Shi <shy828301@xxxxxxxxx>
Acked-by: Shakeel Butt <shakeelb@xxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Cc: Roman Gushchin <roman.gushchin@xxxxxxxxx>
Cc: Yosry Ahmed <yosryahmed@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
--- a/mm/memcontrol.c~mm-memcg-export-workingset-refault-stats-for-cgroup-v1
+++ a/mm/memcontrol.c
@@ -3976,6 +3976,8 @@ static const unsigned int memcg1_stats[]
NR_FILE_MAPPED,
NR_FILE_DIRTY,
NR_WRITEBACK,
+ WORKINGSET_REFAULT_ANON,
+ WORKINGSET_REFAULT_FILE,
MEMCG_SWAP,
};
@@ -3989,6 +3991,8 @@ static const char *const memcg1_stat_nam
"mapped_file",
"dirty",
"writeback",
+ "workingset_refault_anon",
+ "workingset_refault_file",
"swap",
};
@@ -4017,7 +4021,8 @@ static int memcg_stat_show(struct seq_fi
if (memcg1_stats[i] == MEMCG_SWAP && !do_memsw_account())
continue;
nr = memcg_page_state_local(memcg, memcg1_stats[i]);
- seq_printf(m, "%s %lu\n", memcg1_stat_names[i], nr * PAGE_SIZE);
+ seq_printf(m, "%s %lu\n", memcg1_stat_names[i],
+ nr * memcg_page_state_unit(memcg1_stats[i]));
}
for (i = 0; i < ARRAY_SIZE(memcg1_events); i++)
@@ -4048,7 +4053,7 @@ static int memcg_stat_show(struct seq_fi
continue;
nr = memcg_page_state(memcg, memcg1_stats[i]);
seq_printf(m, "total_%s %llu\n", memcg1_stat_names[i],
- (u64)nr * PAGE_SIZE);
+ (u64)nr * memcg_page_state_unit(memcg1_stats[i]));
}
for (i = 0; i < ARRAY_SIZE(memcg1_events); i++)
_
Patches currently in -mm which might be from shy828301@xxxxxxxxx are
mm-khugepaged-dont-carry-huge-page-to-the-next-loop-for-config_numa.patch
mm-memcg-export-workingset-refault-stats-for-cgroup-v1.patch
