From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Fri, 22 Feb 2008 00:40:06 -0800 (PST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.168.28]) by oss.sgi.com (8.12.11.20060308/8.12.11/SuSE Linux 0.7) with ESMTP id m1M8e0ZS004334 for ; Fri, 22 Feb 2008 00:40:02 -0800 Received: from fg-out-1718.google.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 2E19D694E63 for ; Fri, 22 Feb 2008 00:40:26 -0800 (PST) Received: from fg-out-1718.google.com (fg-out-1718.google.com [72.14.220.158]) by cuda.sgi.com with ESMTP id UkW55Svu4vRfrUnO for ; Fri, 22 Feb 2008 00:40:26 -0800 (PST) Received: by fg-out-1718.google.com with SMTP id e12so250296fga.8 for ; Fri, 22 Feb 2008 00:40:25 -0800 (PST) Message-ID: <47BE8A76.5080603@gmail.com> Date: Fri, 22 Feb 2008 10:40:22 +0200 From: =?ISO-8859-1?Q?T=F6r=F6k_Edwin?= MIME-Version: 1.0 Subject: Re: Marking inode dirty latency > 1000 msec on XFS! References: <47B5DD9C.3080906@gmail.com> <47BE6C5C.2000605@sgi.com> <20080222071608.GT155407@sgi.com> In-Reply-To: <20080222071608.GT155407@sgi.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: David Chinner Cc: Lachlan McIlroy , Arjan van de Ven , xfs@oss.sgi.com David Chinner wrote: > On Fri, Feb 22, 2008 at 05:31:56PM +1100, Lachlan McIlroy wrote: > >> Török Edwin wrote: >> >>> FWIW, this is a slow laptop hdd (5400 rpm, ST96812AS), but latency of 1 >>> second is still big. >>> >>> Are there any settings I can tweak to reduce latency? >>> >> Um, not that I am aware of. >> > > Try using a filesystem that has lazy-count enabled. How do I activate lazy-count on an already existing filesystem? I tried using xfs_db, but AFAICT it cannot activate features2 flags. I am using 2.9.6-1, should I checkout xfsprogs from CVS? Thanks, --Edwin