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| author | Roman Gushchin <guro@fb.com> | 2017-07-07 01:40:25 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-07 02:24:35 +0300 |
| commit | 2262185c5b287f2758afda79c149b7cf6bee165c (patch) | |
| tree | 4451ec80c3515ed5e4b93e4b2e5bd78661e0a5a9 /Documentation | |
| parent | 94f4a1618b4c2b268f9e70bd1516932927782293 (diff) | |
| download | linux-2262185c5b287f2758afda79c149b7cf6bee165c.tar.xz | |
mm: per-cgroup memory reclaim stats
Track the following reclaim counters for every memory cgroup: PGREFILL,
PGSCAN, PGSTEAL, PGACTIVATE, PGDEACTIVATE, PGLAZYFREE and PGLAZYFREED.
These values are exposed using the memory.stats interface of cgroup v2.
The meaning of each value is the same as for global counters, available
using /proc/vmstat.
Also, for consistency, rename mem_cgroup_count_vm_event() to
count_memcg_event_mm().
Link: http://lkml.kernel.org/r/1494530183-30808-1-git-send-email-guro@fb.com
Signed-off-by: Roman Gushchin <guro@fb.com>
Suggested-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vladimir Davydov <vdavydov.dev@gmail.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/cgroup-v2.txt | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/Documentation/cgroup-v2.txt b/Documentation/cgroup-v2.txt index 558c3a739baf..5ac2fbde97e6 100644 --- a/Documentation/cgroup-v2.txt +++ b/Documentation/cgroup-v2.txt @@ -956,6 +956,34 @@ PAGE_SIZE multiple when read back. Number of times a shadow node has been reclaimed + pgrefill + + Amount of scanned pages (in an active LRU list) + + pgscan + + Amount of scanned pages (in an inactive LRU list) + + pgsteal + + Amount of reclaimed pages + + pgactivate + + Amount of pages moved to the active LRU list + + pgdeactivate + + Amount of pages moved to the inactive LRU lis + + pglazyfree + + Amount of pages postponed to be freed under memory pressure + + pglazyfreed + + Amount of reclaimed lazyfree pages + memory.swap.current A read-only single value file which exists on non-root |