diff options
| author | Johannes Weiner <hannes@cmpxchg.org> | 2012-05-30 00:06:26 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-30 01:22:20 +0200 |
| commit | eb6332a54542bcd3aedb121ecb247f172b8f3602 (patch) | |
| tree | 58c2b39668bd0411e36f024e2e1f7b8e37b02260 /Documentation/cgroups | |
| parent | mm, thp: drop page_table_lock to uncharge memcg pages (diff) | |
| download | linux-eb6332a54542bcd3aedb121ecb247f172b8f3602.tar.xz linux-eb6332a54542bcd3aedb121ecb247f172b8f3602.zip | |
Documentation: memcg: future proof hierarchical statistics documentation
The hierarchical versions of per-memcg counters in memory.stat are all
calculated the same way and are all named total_<counter>.
Documenting the pattern is easier for maintenance than listing each
counter twice.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Ying Han <yinghan@google.com>
Randy Dunlap <rdunlap@xenotime.net>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/cgroups')
| -rw-r--r-- | Documentation/cgroups/memory.txt | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt index 9b1067afb224..e479007f1a75 100644 --- a/Documentation/cgroups/memory.txt +++ b/Documentation/cgroups/memory.txt @@ -430,17 +430,10 @@ hierarchical_memory_limit - # of bytes of memory limit with regard to hierarchy hierarchical_memsw_limit - # of bytes of memory+swap limit with regard to hierarchy under which memory cgroup is. -total_cache - sum of all children's "cache" -total_rss - sum of all children's "rss" -total_mapped_file - sum of all children's "cache" -total_pgpgin - sum of all children's "pgpgin" -total_pgpgout - sum of all children's "pgpgout" -total_swap - sum of all children's "swap" -total_inactive_anon - sum of all children's "inactive_anon" -total_active_anon - sum of all children's "active_anon" -total_inactive_file - sum of all children's "inactive_file" -total_active_file - sum of all children's "active_file" -total_unevictable - sum of all children's "unevictable" +total_<counter> - # hierarchical version of <counter>, which in + addition to the cgroup's own value includes the + sum of all hierarchical children's values of + <counter>, i.e. total_cache # The following additional stats are dependent on CONFIG_DEBUG_VM. |