From owner-freebsd-fs@FreeBSD.ORG Thu Feb 10 08:34:29 2005 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6CF3216A4CE for ; Thu, 10 Feb 2005 08:34:29 +0000 (GMT) Received: from ferengi.borderworlds.dk (ferengi.borderworlds.dk [80.166.152.7]) by mx1.FreeBSD.org (Postfix) with ESMTP id E577643D31 for ; Thu, 10 Feb 2005 08:34:28 +0000 (GMT) (envelope-from xi@borderworlds.dk) Received: from borg.borderworlds.dk (localhost [127.0.0.1]) by ferengi.borderworlds.dk (Postfix) with ESMTP id 22F4BB829; Thu, 10 Feb 2005 09:34:27 +0100 (CET) Received: by borg.borderworlds.dk (Postfix, from userid 1001) id E93771143A; Thu, 10 Feb 2005 09:34:26 +0100 (CET) Sender: xi@borderworlds.dk To: "Loren M. Lang" References: <20050210030119.GD29396@alzatex.com> From: Christian Laursen Date: 10 Feb 2005 09:34:26 +0100 In-Reply-To: <20050210030119.GD29396@alzatex.com> Message-ID: <86vf90ak4t.fsf@borg.borderworlds.dk> Lines: 13 User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii cc: freebsd-fs@freebsd.org Subject: Re: Journalling FS and Soft Updates comparision X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Feb 2005 08:34:29 -0000 "Loren M. Lang" writes: > I'm mainly just trying to get an understanding of these two techniques, > not neccessarily saying one is better. In the real world, it's probably > very dependent on many other things like lot of random access vs. > sequential, many files and file ops per seconds, vs. mostly read-only > with noatime set, etc. Some relevant reading about this: http://www.usenix.org/publications/library/proceedings/usenix2000/general/seltzer.html -- Christian Laursen