linux-kernel - Re: [patch v2 3/3] mm: page_alloc: fair zone allocator policy

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Message-ID: <520538D3.9000705@surriel.com>
Date:	Fri, 09 Aug 2013 14:45:39 -0400
From:	Rik van Riel <riel@...riel.com>
To:	Johannes Weiner <hannes@...xchg.org>
CC:	Mel Gorman <mgorman@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Zlatko Calusic <zcalusic@...sync.net>,
	Minchan Kim <minchan@...nel.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [patch v2 3/3] mm: page_alloc: fair zone allocator policy

On 08/08/2013 12:16 AM, Johannes Weiner wrote:

> Patch on top of mmotm:

Yes, please!

> ---
> From: Johannes Weiner <hannes@...xchg.org>
> Subject: [patch] mm: page_alloc: use vmstats for fair zone allocation batching
>
> Avoid dirtying the same cache line with every single page allocation
> by making the fair per-zone allocation batch a vmstat item, which will
> turn it into batched percpu counters on SMP.
>
> Signed-off-by: Johannes Weiner <hannes@...xchg.org>

Reviewed-by: Rik van Riel <riel@...hat.com>

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