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| author | Ying Han <yinghan@google.com> | 2012-04-12 23:49:10 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-04-13 00:12:11 +0400 |
| commit | 6252efcc3626bdcde1c1c2d8a83be0bc66b8cc2c (patch) | |
| tree | 594d74c5a9b06f289d105130cd81055267f67144 /Documentation/cgroups/memory.txt | |
| parent | 45852766a0212c2d4f0d7faa71eedbd6c1d70452 (diff) | |
| download | linux-6252efcc3626bdcde1c1c2d8a83be0bc66b8cc2c.tar.xz | |
memcg: fix up documentation on global LRU
In v3.3-rc1, the global LRU was removed in commit 925b7673cce3 ("mm:
make per-memcg LRU lists exclusive"). The patch fixes up the memcg
docs.
I left the swap session to someone who has better understanding of
'memory+swap'.
Signed-off-by: Ying Han <yinghan@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
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/memory.txt')
| -rw-r--r-- | Documentation/cgroups/memory.txt | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt index 4c95c0034a4b..9b1067afb224 100644 --- a/Documentation/cgroups/memory.txt +++ b/Documentation/cgroups/memory.txt @@ -34,8 +34,7 @@ Current Status: linux-2.6.34-mmotm(development version of 2010/April) Features: - accounting anonymous pages, file caches, swap caches usage and limiting them. - - private LRU and reclaim routine. (system's global LRU and private LRU - work independently from each other) + - pages are linked to per-memcg LRU exclusively, and there is no global LRU. - optionally, memory+swap usage can be accounted and limited. - hierarchical accounting - soft limit @@ -154,7 +153,7 @@ updated. page_cgroup has its own LRU on cgroup. 2.2.1 Accounting details All mapped anon pages (RSS) and cache pages (Page Cache) are accounted. -Some pages which are never reclaimable and will not be on the global LRU +Some pages which are never reclaimable and will not be on the LRU are not accounted. We just account pages under usual VM management. RSS pages are accounted at page_fault unless they've already been accounted |