From owner-freebsd-questions@FreeBSD.ORG Tue Mar 17 10:45:52 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 79BE21065694 for ; Tue, 17 Mar 2009 10:45:52 +0000 (UTC) (envelope-from ml@netfence.it) Received: from parrot.aev.net (parrot.aev.eu [212.31.247.179]) by mx1.freebsd.org (Postfix) with ESMTP id E28748FC0A for ; Tue, 17 Mar 2009 10:45:51 +0000 (UTC) (envelope-from ml@netfence.it) Received: from soth.ventu (adsl-ull-200-32.51-151.net24.it [151.51.32.200]) (authenticated bits=128) by parrot.aev.net (8.14.3/8.14.3) with ESMTP id n2HAifcr001504 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL) for ; Tue, 17 Mar 2009 11:44:47 +0100 (CET) (envelope-from ml@netfence.it) Received: from alamar.ventu (alamar.ventu [10.1.2.18]) by soth.ventu (8.14.3/8.14.2) with ESMTP id n2HAkQVX043919 for ; Tue, 17 Mar 2009 11:46:26 +0100 (CET) (envelope-from ml@netfence.it) Message-ID: <49BF7F56.4080107@netfence.it> Date: Tue, 17 Mar 2009 11:45:42 +0100 From: Andrea Venturoli User-Agent: Thunderbird 2.0.0.19 (X11/20090201) MIME-Version: 1.0 To: freebsd-questions@freebsd.org Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.64 on 212.31.247.179 Subject: umass performance X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Mar 2009 10:45:53 -0000 Hello. I'm using dd to clone an 8GB USB memory into an identical one. # dd if=/dev/da2 of=/dev/da1 load: 0.01 cmd: dd 12026 [physwr] 0.00u 0.01s 0% 904k 396+0 records in 395+0 records out 202240 bytes transferred in 1.453741 secs (139117 bytes/sec) 15925248+0 records in 15925248+0 records out 8153726976 bytes transferred in 31722.194052 secs (257035 bytes/sec) As you can see the process is VERY slow, taking nearly 9 hours. Anything to try? Some info: # uname -a FreeBSD xxx.xxx.xx 7.1-RELEASE-p2 FreeBSD 7.1-RELEASE-p2 #0: Fri Jan 23 13:02:07 CET 2009 root@xxxx.xxx.xx:/usr/obj/usr/src/sys/XXXXXXXX amd64 h24# # usbdevs -v Controller /dev/usb0: addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x0000), rev 1.00 port 1 powered port 2 powered Controller /dev/usb1: addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x0000), rev 1.00 port 1 powered port 2 powered Controller /dev/usb2: addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x0000), rev 1.00 port 1 addr 2: full speed, power 90 mA, config 1, USB <-> Serial(0x6001), FTDI(0x0403), rev 4.00 port 2 powered Controller /dev/usb3: addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x0000), rev 1.00 port 1 powered port 2 powered Controller /dev/usb4: addr 1: high speed, self powered, config 1, EHCI root hub(0x0000), Intel(0x0000), rev 1.00 port 1 powered port 2 powered port 3 powered port 4 powered port 5 powered port 6 powered port 7 addr 2: high speed, power 100 mA, config 1, DISK 2.0(0x1000), USB(0x090c), rev 4.03 port 8 addr 3: high speed, power 100 mA, config 1, DISK 2.0(0x1000), USB(0x090c), rev 4.03 Controller /dev/usb5: addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), (0x103c)(0x0000), rev 1.00 port 1 addr 2: full speed, self powered, config 1, Virtual Keyboard(0x1027), HP(0x03f0), rev 0.02 port 2 addr 3: full speed, self powered, config 1, Virtual Hub(0x1327), HP(0x03f0), rev 0.01 port 1 powered port 2 powered port 3 powered port 4 powered port 5 powered port 6 powered port 7 powered Any hint appreciated. bye & Thanks av.