linux-kernel - Re: [PATCH 08/34] mm, vmscan: remove balance gap

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Message-ID: <20160712140645.GD5881@cmpxchg.org>
Date:	Tue, 12 Jul 2016 10:06:45 -0400
From:	Johannes Weiner <hannes@...xchg.org>
To:	Mel Gorman <mgorman@...hsingularity.net>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux-MM <linux-mm@...ck.org>, Rik van Riel <riel@...riel.com>,
	Vlastimil Babka <vbabka@...e.cz>,
	Minchan Kim <minchan@...nel.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 08/34] mm, vmscan: remove balance gap

On Fri, Jul 08, 2016 at 10:34:44AM +0100, Mel Gorman wrote:
> The balance gap was introduced to apply equal pressure to all zones when
> reclaiming for a higher zone.  With node-based LRU, the need for the
> balance gap is removed and the code is dead so remove it.
> 
> [vbabka@...e.cz: Also remove KSWAPD_ZONE_BALANCE_GAP_RATIO]
> Signed-off-by: Mel Gorman <mgorman@...hsingularity.net>
> Acked-by: Vlastimil Babka <vbabka@...e.cz>

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