From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx123.postini.com [74.125.245.123]) by kanga.kvack.org (Postfix) with SMTP id 179856B005A for ; Tue, 10 Jan 2012 04:44:57 -0500 (EST) Date: Tue, 10 Jan 2012 09:44:52 +0000 From: Mel Gorman Subject: Re: [PATCH] mm: vmscan: fix setting reclaim mode Message-ID: <20120110094452.GC4118@suse.de> References: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Hillf Danton Cc: linux-mm@kvack.org, KAMEZAWA Hiroyuki , David Rientjes , Andrew Morton , LKML On Sun, Jan 08, 2012 at 03:05:03PM +0800, Hillf Danton wrote: > The check for under memory pressure is corrected, then lumpy reclaim or > reclaim/compaction could be avoided either when for order-O reclaim or > when free pages are already low enough. > No explanation of problem, how this patch fixes it or what the impact is. At a glance, this will have the impact of using sync reclaim at low reclaim priorities. This is unexpected so needs much better explanation. -- Mel Gorman SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org