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memcg: show reclaim stat

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Add the following four fields to memory.stat file:

  - inactive_ratio
  - recent_rotated_anon
  - recent_rotated_file
  - recent_scanned_anon
  - recent_scanned_file

Acked-by: Rik van Riel <[email protected]>
Signed-off-by: KAMEZAWA Hiroyuki <[email protected]>
Signed-off-by: KOSAKI Motohiro <[email protected]>
Cc: Balbir Singh <[email protected]>
Cc: Daisuke Nishimura <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: KOSAKI Motohiro <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
KOSAKI Motohiro 2009-01-07 18:08:22 -08:00 • committed by Linus Torvalds
commit 7f016ee8b6
2 changed files with 55 additions and 0 deletions
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30
mm/memcontrol.c
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@ -1816,6 +1816,36 @@ static int mem_control_stat_show(struct cgroup *cont, struct cftype *cft,
cb->fill(cb, "unevictable", unevictable * PAGE_SIZE);
}
#ifdef CONFIG_DEBUG_VM
cb->fill(cb, "inactive_ratio", mem_cont->inactive_ratio);
{
int nid, zid;
struct mem_cgroup_per_zone *mz;
unsigned long recent_rotated[2] = {0, 0};
unsigned long recent_scanned[2] = {0, 0};
for_each_online_node(nid)
for (zid = 0; zid < MAX_NR_ZONES; zid++) {
mz = mem_cgroup_zoneinfo(mem_cont, nid, zid);
recent_rotated[0] +=
mz->reclaim_stat.recent_rotated[0];
recent_rotated[1] +=
mz->reclaim_stat.recent_rotated[1];
recent_scanned[0] +=
mz->reclaim_stat.recent_scanned[0];
recent_scanned[1] +=
mz->reclaim_stat.recent_scanned[1];
}
cb->fill(cb, "recent_rotated_anon", recent_rotated[0]);
cb->fill(cb, "recent_rotated_file", recent_rotated[1]);
cb->fill(cb, "recent_scanned_anon", recent_scanned[0]);
cb->fill(cb, "recent_scanned_file", recent_scanned[1]);
}
#endif
return 0;
}