linux-kernel - Re: [PATCH 2/2] memcg: Allow hard guarantee mode for low limit reclaim

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Date:	Fri, 6 Jun 2014 11:34:54 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Michal Hocko <mhocko@...e.cz>
Cc:	Johannes Weiner <hannes@...xchg.org>,
	Hugh Dickins <hughd@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Greg Thelen <gthelen@...gle.com>,
	Michel Lespinasse <walken@...gle.com>,
	Roman Gushchin <klamm@...dex-team.ru>,
	LKML <linux-kernel@...r.kernel.org>, linux-mm@...ck.org
Subject: Re: [PATCH 2/2] memcg: Allow hard guarantee mode for low limit
 reclaim

A bit of addition.

Let's *please* think through how memcg should be configured and
different knobs / limits interact with each other and come up with a
consistent scheme before adding more shits on top.  This "oh I know
this use case and maybe that behavior is necessary too, let's add N
different and incompatible ways to mix and match them" doesn't fly.
Aren't we suppposed to at least have learned that already?

-- 
tejun
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