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Date: Tue, 24 Apr 2012 21:33:58 +0200 From: Johannes Weiner <hannes@...xchg.org> To: Andrew Morton <akpm@...ux-foundation.org> Cc: Michal Hocko <mhocko@...e.cz>, KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>, Ying Han <yinghan@...gle.com>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>, linux-mm@...ck.org, cgroups@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [patch] Documentation: memcg: future proof hierarchical statistics documentation The hierarchical versions of per-memcg counters in memory.stat are all calculated the same way and are all named total_<counter>. Documenting the pattern is easier for maintenance than listing each counter twice. Signed-off-by: Johannes Weiner <hannes@...xchg.org> Acked-by: Michal Hocko <mhocko@...e.cz> Acked-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> Acked-by: Ying Han <yinghan@...gle.com> --- Documentation/cgroups/memory.txt | 15 ++++----------- 1 files changed, 4 insertions(+), 11 deletions(-) diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt index ab34ae5..6a066a2 100644 --- a/Documentation/cgroups/memory.txt +++ b/Documentation/cgroups/memory.txt @@ -432,17 +432,10 @@ hierarchical_memory_limit - # of bytes of memory limit with regard to hierarchy hierarchical_memsw_limit - # of bytes of memory+swap limit with regard to hierarchy under which memory cgroup is. -total_cache - sum of all children's "cache" -total_rss - sum of all children's "rss" -total_mapped_file - sum of all children's "cache" -total_pgpgin - sum of all children's "pgpgin" -total_pgpgout - sum of all children's "pgpgout" -total_swap - sum of all children's "swap" -total_inactive_anon - sum of all children's "inactive_anon" -total_active_anon - sum of all children's "active_anon" -total_inactive_file - sum of all children's "inactive_file" -total_active_file - sum of all children's "active_file" -total_unevictable - sum of all children's "unevictable" +total_<counter> - # hierarchical version of <counter>, which in + addition to the cgroup's own value includes the + sum of all hierarchical children's values of + <counter>, i.e. total_cache # The following additional stats are dependent on CONFIG_DEBUG_VM. -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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