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| author | David Rientjes <rientjes@google.com> | 2013-05-07 16:18:09 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-07 18:38:26 -0700 |
| commit | b070e65c0bb58d90fa1ac693dc85e239a6b16872 (patch) | |
| tree | 8738b57c68ca2bb655dee5a152ed0152222ecfe5 /Documentation/cgroups | |
| parent | 70affe4520c6f22f5b22b58b589c6ebbe3f8cbc9 (diff) | |
| download | lwn-b070e65c0bb58d90fa1ac693dc85e239a6b16872.tar.gz lwn-b070e65c0bb58d90fa1ac693dc85e239a6b16872.zip | |
mm, memcg: add rss_huge stat to memory.stat
This exports the amount of anonymous transparent hugepages for each
memcg via the new "rss_huge" stat in memory.stat. The units are in
bytes.
This is helpful to determine the hugepage utilization for individual
jobs on the system in comparison to rss and opportunities where
MADV_HUGEPAGE may be helpful.
The amount of anonymous transparent hugepages is also included in "rss"
for backwards compatibility.
Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: 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 | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt index 09027a9fece5..ddf4f93967a9 100644 --- a/Documentation/cgroups/memory.txt +++ b/Documentation/cgroups/memory.txt @@ -480,7 +480,9 @@ memory.stat file includes following statistics # per-memory cgroup local status cache - # of bytes of page cache memory. -rss - # of bytes of anonymous and swap cache memory. +rss - # of bytes of anonymous and swap cache memory (includes + transparent hugepages). +rss_huge - # of bytes of anonymous transparent hugepages. mapped_file - # of bytes of mapped file (includes tmpfs/shmem) pgpgin - # of charging events to the memory cgroup. The charging event happens each time a page is accounted as either mapped |