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 o0B1VxUO075090 for ; Sun, 10 Jan 2010 19:31:59 -0600 Received: from mail.bitmover.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id A3A031577FA for ; Sun, 10 Jan 2010 17:32:52 -0800 (PST) Received: from mail.bitmover.com (ipcop.bitmover.com [192.132.92.15]) by cuda.sgi.com with ESMTP id h1W3VuOGQ0U9Bvsw for ; Sun, 10 Jan 2010 17:32:52 -0800 (PST) Date: Sun, 10 Jan 2010 17:32:51 -0800 From: Larry McVoy Subject: Re: [Jfs-discussion] benchmark results Message-ID: <20100111013251.GA8233@bitmover.com> References: <19251.26403.762180.228181@tree.ty.sabi.co.uk> <20091224212756.GM21594@thunk.org> <20091225161453.GD32757@thunk.org> <20091225162238.GB19303@bitmover.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: 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: Casey Allen Shobe Cc: jfs-discussion@lists.sourceforge.net, linux-nilfs@vger.kernel.org, tytso@mit.edu, reiserfs-devel@vger.kernel.org, xfs@oss.sgi.com, Larry McVoy , Peter Grandi , ext-users , linux-ext4@vger.kernel.org, linux-btrfs@vger.kernel.org On Sun, Jan 10, 2010 at 08:03:04PM -0500, Casey Allen Shobe wrote: > On Dec 25, 2009, at 11:22 AM, Larry McVoy wrote: >> Dudes, sync() doesn't flush the fs cache, you have to unmount for >> that. >> Once upon a time Linux had an ioctl() to flush the fs buffers, I used >> it in lmbench. > > > You do not need to unmount - 2.6.16+ have a mechanism in /proc to flush > caches. See http://linux-mm.org/Drop_Caches Cool, but I tend to come at problems from a cross platform point of view. Aix no hable /proc :) -- --- Larry McVoy lm at bitmover.com http://www.bitkeeper.com _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs