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memcg: document cgroup dirty/writeback memory statistics

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Signed-off-by: Sha Zhengju <handai.szj@taobao.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Sha Zhengju 2013-09-12 15:13:54 -07:00 committed by Linus Torvalds
parent 3ea67d06e4
commit 9cb2dc1c95
1 changed files with 2 additions and 0 deletions
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Documentation/cgroups/memory.txt
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@ -490,6 +490,8 @@ pgpgin - # of charging events to the memory cgroup. The charging
pgpgout - # of uncharging events to the memory cgroup. The uncharging
event happens each time a page is unaccounted from the cgroup.
swap - # of bytes of swap usage
writeback - # of bytes of file/anon cache that are queued for syncing to
disk.
inactive_anon - # of bytes of anonymous and swap cache memory on inactive
LRU list.
active_anon - # of bytes of anonymous and swap cache memory on active