Messages in this thread Patch in this message |  | | From | Balaji Rao <> | Subject | [RFC][-mm] [2/2] Simple stats for memory resource controller | Date | Sat, 5 Apr 2008 23:40:02 +0530 |
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This patch implements trivial statistics for the memory resource controller.
Signed-off-by: Balaji Rao <balajirrao@gmail.com> CC: Balbir Singh <balbir@linux.vnet.ibm.com> CC: Dhaval Giani <dhaval@linux.vnet.ibm.com>
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index a860765..ca98b21 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -47,6 +47,8 @@ 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, }; @@ -198,6 +200,13 @@ 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 * @@ -897,6 +906,8 @@ 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, -- regards, Balaji Rao Dept. of Mechanical Engineering, National Institute of Technology Karnataka, India
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