From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o4JHuJeV145584 for ; Wed, 19 May 2010 12:56:20 -0500 Received: from greer.hardwarefreak.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 6C5A99E8A93 for ; Wed, 19 May 2010 10:59:47 -0700 (PDT) Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id nuGaUtCEF3myRaRH for ; Wed, 19 May 2010 10:59:47 -0700 (PDT) Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id 035056C24C for ; Wed, 19 May 2010 12:58:37 -0500 (CDT) Message-ID: <4BF42725.8060903@hardwarefreak.com> Date: Wed, 19 May 2010 13:00:05 -0500 From: Stan Hoeppner MIME-Version: 1.0 Subject: Re: noatime,nodiratime? References: <4BF3F212.5030600@hardwarefreak.com> <87mxvveqyq.fsf@petole.demisel.net> In-Reply-To: <87mxvveqyq.fsf@petole.demisel.net> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com Nicolas KOWALSKI put forth on 5/19/2010 12:33 PM: > Stan Hoeppner writes: >> Need a little education here. I have a general understanding of what the >> inode access timestamps "are" but I have no idea what, if any, applications >> make use of these access times. I see posts all over Google land saying to >> use "noatime,nodiratime,logbufs=8" for XFS mount options to increase >> performance. > > BTW, about the mount options for XFS, is there a way to check for the > default values (things like logbsize, logbufs, something else)? > > I used to have noatime,logbufs=8,logbsize=256k on my fileserver, not > sure if these are still necessary. Yes, the defaults for each parameter are in your mount man page. logbsize=256K is higher than the default, which is 32K for any system with over 32MB RAM. logbufs=8 will be the default if your blocksize is 64K. If your blocksize is 4K you'll get logbufs=2 by default. This is all in the XFS section of man mount. -- Stan _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs