From owner-freebsd-fs@FreeBSD.ORG Sat Jun 10 00:57:41 2006 Return-Path: X-Original-To: fs@freebsd.org 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 B32B516A482 for ; Sat, 10 Jun 2006 00:57:41 +0000 (UTC) (envelope-from mi+mx@aldan.algebra.com) Received: from aldan.algebra.com (aldan.algebra.com [216.254.65.224]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6999043D83 for ; Sat, 10 Jun 2006 00:57:34 +0000 (GMT) (envelope-from mi+mx@aldan.algebra.com) Received: from corbulon.video-collage.com (static-151-204-231-237.bos.east.verizon.net [151.204.231.237]) by aldan.algebra.com (8.13.6/8.13.6) with ESMTP id k5A0vO7u037588 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 9 Jun 2006 20:57:25 -0400 (EDT) (envelope-from mi+mx@aldan.algebra.com) Received: from [172.21.130.86] (mx-broadway [38.98.68.18]) by corbulon.video-collage.com (8.13.6/8.13.6) with ESMTP id k5A0vIEw017057 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 9 Jun 2006 20:57:19 -0400 (EDT) (envelope-from mi+mx@aldan.algebra.com) From: Mikhail Teterin Organization: Virtual Estates, Inc. To: Bruce Evans Date: Fri, 9 Jun 2006 20:57:13 -0400 User-Agent: KMail/1.9.1 References: <20060609065656.31225.qmail@web30313.mail.mud.yahoo.com> <4489A8CC.8030307@samsco.org> <20060610091109.R14403@delplex.bde.org> In-Reply-To: <20060610091109.R14403@delplex.bde.org> MIME-Version: 1.0 Content-Type: text/plain; charset="koi8-u" Content-Transfer-Encoding: 8bit Content-Disposition: inline Message-Id: <200606092057.13416.mi+mx@aldan.algebra.com> X-Virus-Scanned: ClamAV 0.88/1523/Fri Jun 9 03:10:10 2006 on corbulon.video-collage.com X-Virus-Status: Clean X-Scanned-By: MIMEDefang 2.43 Cc: fs@freebsd.org Subject: Severe impact of fragmentation (was: heavy NFS writes lead ...) X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 Jun 2006 00:57:41 -0000 п'ятниця 09 червень 2006 20:06, Bruce Evans написав: > Fragmentation (discontiguity, not the fragmentation reported by fsck), tends > to be very large for old, active file systems and typically reduces > efficiency of trees like /home/ncvs by a factor of 5-10. Ouch... "In-place" defragemntation program, anyone? -mi