From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 19 Feb 2008 16:09:07 +0900 From: KOSAKI Motohiro Subject: Re: [RFC][PATCH] the proposal of improve page reclaim by throttle In-Reply-To: <200802191735.00222.nickpiggin@yahoo.com.au> References: <20080219134715.7E90.KOSAKI.MOTOHIRO@jp.fujitsu.com> <200802191735.00222.nickpiggin@yahoo.com.au> Message-Id: <20080219160711.7E99.KOSAKI.MOTOHIRO@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: kosaki.motohiro@jp.fujitsu.com, KAMEZAWA Hiroyuki , Balbir Singh , Rik van Riel , Lee Schermerhorn , linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: Hi Nick, > Yeah this is definitely needed and a nice result. > > I'm worried about a) placing a global limit on parallelism, and b) > placing a limit on parallelism at all. sorry, i don't understand yet. a) and b) have any relation? > > I think it should maybe be a per-zone thing... > > What happens if you make it a per-zone mutex, and allow just a single > process to reclaim pages from a given zone at a time? I guess that is > going to slow down throughput a little bit in some cases though... That makes sense. OK. I'll repost after 2-3 days. Thanks. - kosaki -- 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/ . Don't email: email@kvack.org