From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with ESMTP id 1607F60021B for ; Tue, 29 Dec 2009 09:09:24 -0500 (EST) Received: from d23relay05.au.ibm.com (d23relay05.au.ibm.com [202.81.31.247]) by e23smtp01.au.ibm.com (8.14.3/8.13.1) with ESMTP id nBTE7YFY022916 for ; Wed, 30 Dec 2009 01:07:34 +1100 Received: from d23av02.au.ibm.com (d23av02.au.ibm.com [9.190.235.138]) by d23relay05.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id nBTE54nb860326 for ; Wed, 30 Dec 2009 01:05:05 +1100 Received: from d23av02.au.ibm.com (loopback [127.0.0.1]) by d23av02.au.ibm.com (8.14.3/8.13.1/NCO v10.0 AVout) with ESMTP id nBTE9JIi020343 for ; Wed, 30 Dec 2009 01:09:19 +1100 Date: Tue, 29 Dec 2009 19:38:25 +0530 From: Balbir Singh Subject: Re: [PATCH 3/4] vmstat: add anon_scan_ratio field to zoneinfo Message-ID: <20091229140825.GQ3601@balbir.in.ibm.com> Reply-To: balbir@linux.vnet.ibm.com References: <20091228164451.A687.A69D9226@jp.fujitsu.com> <20091228164816.A68D.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <20091228164816.A68D.A69D9226@jp.fujitsu.com> Sender: owner-linux-mm@kvack.org To: KOSAKI Motohiro Cc: LKML , linux-mm , Andrew Morton , Mel Gorman , KAMEZAWA Hiroyuki List-ID: * KOSAKI Motohiro [2009-12-28 16:48:51]: > Vmscan folks was asked "why does my system makes so much swap-out?" > in lkml at several times. > At that time, I made the debug patch to show recent_anon_{scanned/rorated} > parameter at least three times. > > Thus, its parameter should be showed on /proc/zoneinfo. It help > vmscan folks debugging. > Hmmm.. I think this should come under DEBUG_VM, a lot of tools use /proc/zoneinfo, the additional overhead may be high.. no? Also, I would recommend adding the additional details to the end, so as to not break existing tools (specifically dump line # based tools). -- Balbir -- 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