From: Sha Zhengju <handai.szj@gmail.com>
To: cgroups@vger.kernel.org, linux-mm@kvack.org
Cc: mhocko@suse.cz, kamezawa.hiroyu@jp.fujitsu.com,
glommer@parallels.com, akpm@linux-foundation.org,
mgorman@suse.de, Sha Zhengju <handai.szj@taobao.com>
Subject: [PATCH 1/6] memcg: use global stat directly for root memcg usage
Date: Tue, 12 Mar 2013 18:08:40 +0800 [thread overview]
Message-ID: <1363082920-3711-1-git-send-email-handai.szj@taobao.com> (raw)
In-Reply-To: <1363082773-3598-1-git-send-email-handai.szj@taobao.com>
Since mem_cgroup_recursive_stat(root_mem_cgroup, INDEX) will sum up
all memcg stats without regard to root's use_hierarchy, we may use
global stats instead for simplicity.
Signed-off-by: Sha Zhengju <handai.szj@taobao.com>
---
mm/memcontrol.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 669d16a..735cd41 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4987,11 +4987,11 @@ static inline u64 mem_cgroup_usage(struct mem_cgroup *memcg, bool swap)
return res_counter_read_u64(&memcg->memsw, RES_USAGE);
}
- val = mem_cgroup_recursive_stat(memcg, MEM_CGROUP_STAT_CACHE);
- val += mem_cgroup_recursive_stat(memcg, MEM_CGROUP_STAT_RSS);
+ val = global_page_state(NR_FILE_PAGES);
+ val += global_page_state(NR_ANON_PAGES);
if (swap)
- val += mem_cgroup_recursive_stat(memcg, MEM_CGROUP_STAT_SWAP);
+ val += total_swap_pages - atomic_long_read(&nr_swap_pages);
return val << PAGE_SHIFT;
}
--
1.7.9.5
--
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next prev parent reply other threads:[~2013-03-12 10:09 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-12 10:06 [PATCH 0/6] memcg: bypass root memcg page stat accounting Sha Zhengju
2013-03-12 10:08 ` Sha Zhengju [this message]
2013-03-13 1:05 ` [PATCH 1/6] memcg: use global stat directly for root memcg usage Kamezawa Hiroyuki
2013-03-13 8:50 ` Sha Zhengju
2013-03-12 10:09 ` [PATCH 2/6] memcg: Don't account root memcg CACHE/RSS stats Sha Zhengju
2013-03-13 1:12 ` Kamezawa Hiroyuki
2013-03-13 9:09 ` Sha Zhengju
2013-03-20 7:07 ` Glauber Costa
2013-03-12 10:10 ` [PATCH 3/6] memcg: Don't account root memcg MEM_CGROUP_STAT_FILE_MAPPED stats Sha Zhengju
2013-03-12 10:10 ` [PATCH 4/6] memcg: Don't account root memcg swap stats Sha Zhengju
2013-03-12 10:11 ` [PATCH 5/6] memcg: Don't account root memcg PGFAULT/PGMAJFAULT events Sha Zhengju
2013-03-12 10:11 ` [PATCH 6/6] memcg: disable memcg page stat accounting Sha Zhengju
2013-03-20 7:09 ` Glauber Costa
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