From owner-freebsd-stable@FreeBSD.ORG Mon Sep 29 07:16:35 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 71F8D106568B for ; Mon, 29 Sep 2008 07:16:35 +0000 (UTC) (envelope-from andrew@modulus.org) Received: from email.octopus.com.au (host-122-100-2-232.octopus.com.au [122.100.2.232]) by mx1.freebsd.org (Postfix) with ESMTP id 2CCDA8FC17 for ; Mon, 29 Sep 2008 07:16:35 +0000 (UTC) (envelope-from andrew@modulus.org) Received: by email.octopus.com.au (Postfix, from userid 1002) id 9093417D92; Mon, 29 Sep 2008 17:16:34 +1000 (EST) X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on email.octopus.com.au X-Spam-Level: X-Spam-Status: No, score=-1.4 required=10.0 tests=ALL_TRUSTED autolearn=failed version=3.2.3 Received: from [10.20.30.100] (60.218.233.220.exetel.com.au [220.233.218.60]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: admin@email.octopus.com.au) by email.octopus.com.au (Postfix) with ESMTP id AACDF17D91 for ; Mon, 29 Sep 2008 17:16:28 +1000 (EST) Message-ID: <48E080C0.9070103@modulus.org> Date: Mon, 29 Sep 2008 17:16:16 +1000 From: Andrew Snow User-Agent: Thunderbird 1.5.0.9 (Windows/20061207) MIME-Version: 1.0 To: freebsd-stable@freebsd.org References: <20080921213426.GA13923@0lsen.net> <20080921215203.GC9494@icarus.home.lan> <20080921215930.GA25826@0lsen.net> <20080921220720.GA9847@icarus.home.lan> <249873145.20080926213341@takeda.tk> <20080927051413.GA42700@icarus.home.lan> <765067435.20080926223557@takeda.tk> <20080927064417.GA43638@icarus.home.lan> <588787159.20080927003750@takeda.tk> <5f67a8c40809282030l7888d942q548d570cd0b33be9@mail.gmail.com> <20080929040025.GA97332@icarus.home.lan> In-Reply-To: <20080929040025.GA97332@icarus.home.lan> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: UNEXPECTED SOFT UPDATE INCONSISTENCY; RUN fsck MANUALLY X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 29 Sep 2008 07:16:35 -0000 > However, as a core general purpose filesystem, it seems to have flaws, not > the least of which is a re-separation of file cache and memory cache. For me, this doesn't matter because ZFS is so much faster than UFS overall. Even if you don't use any of its features, the latest version does sequential I/O and heavy random I/O faster than UFS on the same hardware for me. Cases where UFS is faster are proving to be the exception rather than the rule. However, I cannot recommend its use until it is stable, which it currently still is not, under very heavy load. - Andrew