Date: Tue, 17 Mar 2009 11:53:57 +0100 From: =?ISO-8859-1?Q?Fernando_Apestegu=EDa?= <fernando.apesteguia@gmail.com> To: Andrea Venturoli <ml@netfence.it> Cc: freebsd-questions@freebsd.org Subject: Re: umass performance Message-ID: <1bd550a00903170353g1cce09day43d418c420ccd426@mail.gmail.com> In-Reply-To: <49BF7F56.4080107@netfence.it> References: <49BF7F56.4080107@netfence.it>
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On 3/17/09, Andrea Venturoli <ml@netfence.it> wrote: > 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 I had a similiar problem with a 4 GB USB device, in both Linux and FreeBSD 7. It turned out to be a non standard device, so the system was "restarting" the device every now and then. I don't know if this is your problem, but taking a look at the system log while copying might be worthy. > > > Any hint appreciated. > > bye & Thanks > av. > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" >
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