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| author | Balaji Rao <balajirrao@gmail.com> | 2008-05-01 04:35:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-01 08:04:02 -0700 |
| commit | 55e462b05b5df4fd113c4a304c4f487d44b0898e (patch) | |
| tree | 0d538695cc0611395666194a6326b3ad424a9dc7 /mm/memcontrol.c | |
| parent | f39e578172f30d3bdd4533465c7ec00db738eb9d (diff) | |
| download | lwn-55e462b05b5df4fd113c4a304c4f487d44b0898e.tar.gz lwn-55e462b05b5df4fd113c4a304c4f487d44b0898e.zip | |
memcg: simple stats for memory resource controller
Implement trivial statistics for the memory resource controller.
Signed-off-by: Balaji Rao <balajirrao@gmail.com>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 33add96cd5fb..e46451e1d9b7 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -48,6 +48,8 @@ enum mem_cgroup_stat_index { */ MEM_CGROUP_STAT_CACHE, /* # of pages charged as cache */ MEM_CGROUP_STAT_RSS, /* # of pages charged as rss */ + MEM_CGROUP_STAT_PGPGIN_COUNT, /* # of pages paged in */ + MEM_CGROUP_STAT_PGPGOUT_COUNT, /* # of pages paged out */ MEM_CGROUP_STAT_NSTATS, }; @@ -199,6 +201,13 @@ static void mem_cgroup_charge_statistics(struct mem_cgroup *mem, int flags, __mem_cgroup_stat_add_safe(stat, MEM_CGROUP_STAT_CACHE, val); else __mem_cgroup_stat_add_safe(stat, MEM_CGROUP_STAT_RSS, val); + + if (charge) + __mem_cgroup_stat_add_safe(stat, + MEM_CGROUP_STAT_PGPGIN_COUNT, 1); + else + __mem_cgroup_stat_add_safe(stat, + MEM_CGROUP_STAT_PGPGOUT_COUNT, 1); } static struct mem_cgroup_per_zone * @@ -884,6 +893,8 @@ static const struct mem_cgroup_stat_desc { } mem_cgroup_stat_desc[] = { [MEM_CGROUP_STAT_CACHE] = { "cache", PAGE_SIZE, }, [MEM_CGROUP_STAT_RSS] = { "rss", PAGE_SIZE, }, + [MEM_CGROUP_STAT_PGPGIN_COUNT] = {"pgpgin", 1, }, + [MEM_CGROUP_STAT_PGPGOUT_COUNT] = {"pgpgout", 1, }, }; static int mem_control_stat_show(struct cgroup *cont, struct cftype *cft, |