linux-kernel - Re: [PATCH 03/10] mm: vmscan: Flatten kswapd priority loop

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Date:	Sun, 17 Mar 2013 07:36:22 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	Mel Gorman <mgorman@...e.de>
Cc:	Linux-MM <linux-mm@...ck.org>, Jiri Slaby <jslaby@...e.cz>,
	Valdis Kletnieks <Valdis.Kletnieks@...edu>,
	Rik van Riel <riel@...hat.com>,
	Zlatko Calusic <zcalusic@...sync.net>,
	Johannes Weiner <hannes@...xchg.org>,
	dormando <dormando@...ia.net>,
	Satoru Moriya <satoru.moriya@....com>,
	Michal Hocko <mhocko@...e.cz>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 03/10] mm: vmscan: Flatten kswapd priority loop

Mel Gorman <mgorman@...e.de> writes:
>
> To avoid infinite looping for high-order allocation requests kswapd will
> not reclaim for high-order allocations when it has reclaimed at least
> twice the number of pages as the allocation request.

Will this make higher order allocations fail earlier? Or does compaction 
still kick in early enough.

I understand the motivation.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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