From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o6REkJjT191411 for ; Tue, 27 Jul 2010 09:46:19 -0500 Received: from enyo.dsw2k3.info (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 266B647661C for ; Tue, 27 Jul 2010 07:49:24 -0700 (PDT) Received: from enyo.dsw2k3.info (enyo.dsw2k3.info [195.71.86.239]) by cuda.sgi.com with ESMTP id 6vjKqiEVx5jIdaLf for ; Tue, 27 Jul 2010 07:49:24 -0700 (PDT) Date: Tue, 27 Jul 2010 16:49:14 +0200 From: Matthias Schniedermeyer Subject: Re: High latencies writing to a memory mapped file Message-ID: <20100727144914.GA29349@citd.de> References: <20100722144706.GA2840@BohrerMBP.rgmadvisors.com> <20100727092452.GA23307@citd.de> <4C4EDEFD.7000401@hardwarefreak.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <4C4EDEFD.7000401@hardwarefreak.com> 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: Stan Hoeppner Cc: xfs@oss.sgi.com On 27.07.2010 08:28, Stan Hoeppner wrote: > Matthias Schniedermeyer put forth on 7/27/2010 4:24 AM: > > > We have a linux-computer with samba to act as a fileserver for a few > > Windows-Clients and ever since kernel 2.6.26 (Never happend with 2.6.25) > > the server randomly "hangs" for a few seconds (Which is more of a > > problem that drives people crazy). > > Can you supply any kinda of empirical data or logging that would suggest the > problem lies with XFS? You've not given us much to go on except anecdote. > > Google "linux server hangs" and you'll find thousands of causes and solutions. The "best" further anecdote i have is: I cloned(*) the server, on identical hardware (ignoring HDDs), for someone else with 2 major differences. - no loop-aes, as they didn't need encryption. - ext4 instead of xfs That machine has currently an uptime of 180 days and i don't have a single report of a "hang". (Which technically doesn't mean that the machine doesn't have that same bug. Only that no one ever complained to me) For empirical data: I don't know how or where to start. *: In the best sense of the word. As the first step i 'rsync'ed the "system"-HDD of our server to a new HDD. ... Bis denn -- Real Programmers consider "what you see is what you get" to be just as bad a concept in Text Editors as it is in women. No, the Real Programmer wants a "you asked for it, you got it" text editor -- complicated, cryptic, powerful, unforgiving, dangerous. _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs