lkml.org 
[lkml]   [2016]   [Jul]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 14/34] mm, memcg: move memcg limit enforcement from zones to nodes
On Fri, Jul 08, 2016 at 10:34:50AM +0100, Mel Gorman wrote:
> Memcg needs adjustment after moving LRUs to the node. Limits are tracked
> per memcg but the soft-limit excess is tracked per zone. As global page
> reclaim is based on the node, it is easy to imagine a situation where
> a zone soft limit is exceeded even though the memcg limit is fine.
>
> This patch moves the soft limit tree the node. Technically, all the variable
> names should also change but people are already familiar by the meaning of
> "mz" even if "mn" would be a more appropriate name now.
>
> Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
> Acked-by: Michal Hocko <mhocko@suse.com>

Yep, the soft limit tracking scope needs to match the reclaim scope.

Nice patch :)

Acked-by: Johannes Weiner <hannes@cmpxchg.org>

\
 
 \ /
  Last update: 2016-07-12 17:21    [W:0.576 / U:9.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site