linux-kernel - Re: [PATCH] mm: add per-zone lru list stat -fix

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Date:	Mon, 25 Jul 2016 17:01:14 +0900
From:	Minchan Kim <minchan@...nel.org>
To:	Mel Gorman <mgorman@...hsingularity.net>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Fengguang Wu <fengguang.wu@...el.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...e.cz>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Vlastimil Babka <vbabka@...e.cz>,
	Linux-MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: add per-zone lru list stat -fix

On Mon, Jul 25, 2016 at 08:23:00AM +0100, Mel Gorman wrote:
> This patch renames the zone LRU stats as printed in /proc/vmstat to avoid
> confusion. This keeps both the node and zone stats which normally will be
> redundant but should always be roughly in sync.
> 
> This is a fix to the mmotm patch mm-add-per-zone-lru-list-stat.patch
> 
> Signed-off-by: Mel Gorman <mgorman@...hsingularity.net>

Actually, I don't have any number to prove how much keeping the stat
both zone and node increases performance but I don't object it.

Acked-by: Minchan Kim <minchan@...nel.org>

Thanks.