From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q7DLKjDj052341 for ; Mon, 13 Aug 2012 16:20:45 -0500 Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id VnBqLKNIHlIa7xWv for ; Mon, 13 Aug 2012 14:20:44 -0700 (PDT) Message-ID: <50296FAD.6070107@hardwarefreak.com> Date: Mon, 13 Aug 2012 16:20:45 -0500 From: Stan Hoeppner MIME-Version: 1.0 Subject: Re: howto keep xfs directory searches fast for a long time References: <6344220.LKveJofnHA@saturn> <5028057F.3090007@hardwarefreak.com> <2561870.uQFC4XLYQm@saturn> In-Reply-To: <2561870.uQFC4XLYQm@saturn> Reply-To: stan@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: Michael Monnerie Cc: xfs@oss.sgi.com On 8/13/2012 11:44 AM, Michael Monnerie wrote: > http://xfs.org/index.php/XFS_FAQ#Q:_I_want_to_tune_my_XFS_filesystems_for_.3Csomething.3E > > CFQ seems bad, but there's no documented way out of that. I've edited > that, and added a short vm.vfs_cache_pressure description. Please > someone recheck. The XFS FAQ isn't an appropriate place for that tuning suggestion, because it doesn't tune XFS. vm.vfs_cache_pressure tunes the page cache and is file system agnostic. Thus you should remove that entry from the FAQ. Perhaps a blog entry would be more appropriate, or a post to LKML, so it gets archived. However, this is likely already posted somewhere, as you can't be the first to run into this issue. -- Stan _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs