Date: Tue, 17 Mar 2009 11:45:42 +0100 From: Andrea Venturoli <ml@netfence.it> To: freebsd-questions@freebsd.org Subject: umass performance Message-ID: <49BF7F56.4080107@netfence.it>
next in thread | raw e-mail | index | archive | help
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.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?49BF7F56.4080107>