linux-kernel - Re: [RFC PATCH 00/27] Move LRU page reclaim from zones to nodes v2

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Message-ID: <alpine.DEB.2.20.1602231114110.13246@east.gentwo.org>
Date:	Tue, 23 Feb 2016 11:15:29 -0600 (CST)
From:	Christoph Lameter <cl@...ux.com>
To:	Mel Gorman <mgorman@...hsingularity.net>
cc:	Linux-MM <linux-mm@...ck.org>, Rik van Riel <riel@...riel.com>,
	Vlastimil Babka <vbabka@...e.cz>,
	Johannes Weiner <hannes@...xchg.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [RFC PATCH 00/27] Move LRU page reclaim from zones to nodes v2

On Tue, 23 Feb 2016, Mel Gorman wrote:

> Conceptually, moving to node LRUs should be easier to understand. The
> page allocator plays fewer tricks to game reclaim and reclaim behaves
> similarly on all nodes.

I think this is a good way to simplify reclaim and limit the nasty effects
of zones a bit. It probably would allow us to long term rely less on
zones.