Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760105AbZD1IDi (ORCPT ); Tue, 28 Apr 2009 04:03:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758272AbZD1IDR (ORCPT ); Tue, 28 Apr 2009 04:03:17 -0400 Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]:51960 "EHLO fgwmail6.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755306AbZD1IDM (ORCPT ); Tue, 28 Apr 2009 04:03:12 -0400 From: KOSAKI Motohiro To: Peter Zijlstra Subject: Re: Swappiness vs. mmap() and interactive response Cc: kosaki.motohiro@jp.fujitsu.com, Elladan , linux-kernel@vger.kernel.org, linux-mm , Rik van Riel In-Reply-To: <1240904919.7620.73.camel@twins> References: <20090428143019.EBBF.A69D9226@jp.fujitsu.com> <1240904919.7620.73.camel@twins> Message-Id: <20090428170214.EBD8.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.50 [ja] Date: Tue, 28 Apr 2009 17:03:09 +0900 (JST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 772 Lines: 24 > > 1. please post your /proc/meminfo > > 2. Do above copy make tons swap-out? IOW your disk read much faster than write? > > 3. cache limitation of memcgroup solve this problem? > > 4. Which disk have your /bin and /usr/bin? > > > > FWIW I fundamentally object to 3 as being a solution. Yes, I also think so. > I still think the idea of read-ahead driven drop-behind is a good one, > alas last time we brought that up people thought differently. hmm. sorry, I can't recall this patch. do you have any pointer or url? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/