From owner-freebsd-mobile Tue Nov 27 23:34:55 2001 Delivered-To: freebsd-mobile@freebsd.org Received: from elvis.mu.org (elvis.mu.org [216.33.66.196]) by hub.freebsd.org (Postfix) with ESMTP id ED2CC37B405 for ; Tue, 27 Nov 2001 23:34:52 -0800 (PST) Received: by elvis.mu.org (Postfix, from userid 1192) id 8B13381D01; Wed, 28 Nov 2001 01:34:47 -0600 (CST) Date: Wed, 28 Nov 2001 01:34:47 -0600 From: Alfred Perlstein To: =?iso-8859-1?Q?Robert_Blacqui=E8re?= Cc: Daniel O'Connor , freebsd-mobile@FreeBSD.ORG Subject: Re: Extreme filesystem sloth Message-ID: <20011128013447.A46769@elvis.mu.org> References: <20011128074318.G11813@thorin.guldan.demon.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.2.5i In-Reply-To: <20011128074318.G11813@thorin.guldan.demon.nl>; from freebsd@guldan.demon.nl on Wed, Nov 28, 2001 at 07:43:18AM +0100 Sender: owner-freebsd-mobile@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org * Robert Blacquière [011128 00:43] wrote: > > As far as i know linux ext2fs is an async filesystem which is faster but > lacks any security over an power failure or other system crashes. > FreeBSD uses default no fs speedups, you can turn softupdates on an > mount the file systems async. This will speedup any disc access with a > multiple or so. But in case of an error/crash more difficult and loss of > data could be result of this. Don't lump softupdates and async mounts in the same "dangerous" category, softupdates isn't dangerous, it provides nearly fully async speed at the reliability level of a noasync (sync meta-data, async data) mount. -- -Alfred Perlstein [alfred@freebsd.org] 'Instead of asking why a piece of software is using "1970s technology," start asking why software is ignoring 30 years of accumulated wisdom.' http://www.morons.org/rants/gpl-harmful.php3 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message