Re: [patch v3 -mm 1/3] memcg: integrate soft reclaim tighter withzone shrinking code

From: Tejun Heo
Date: Fri May 17 2013 - 12:57:23 EST

Hello, Johannes.

On Fri, May 17, 2013 at 12:02:47PM -0400, Johannes Weiner wrote:
> There are setups with thousands of groups that do not even use soft
> limits. Having them pointlessly iterate over all of them for every
> couple of pages reclaimed is just not acceptable.

Hmmm... if the iteration is the problem, it shouldn't be difficult to
build list of children which should be iterated. Would that make it


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