I have done a test with a small USB1 memory key (i-stick).
I copy a 1.9 MB file from the hard drive to the USB mass storage device, with three different methods:
1) from KDE with Konqueror : 7s (~280 ko/s) 2) from Gnome with Nautilus: 30s (~60 ko/s) 3) from the console with cp: 50s (~40 ko/s)
The correct speed is done when using KDE, the other two are very very slow. Does anybody has already seen this ???
------------------------------- Then I've tried to modify the out block size with dd: First try, with obs=512, => even slower:
$ time dd if=/home/ccomb/tutorial.pdf of=/mnt/IntelligentStick/tutorial.pdf obs=512 3795+1 enregistrements lus. 3795+1 enregistrements écrits. 1943399 bytes transferred in 208,545626 seconds (9319 bytes/sec)
real 3m28.609s user 0m0.010s sys 0m0.108s
Second try, with obs=8192 => Nothing happens, impossible to kill, reboot mandatory!!!
$ time dd if=/home/ccomb/Desktop/downloaded/tutorial.pdf of=/mnt/IntelligentStick/tutorial.pdf obs=8192
Christophe Combelles (Running latest Sid on 2.6.4-1-k7 with an usb2 notebook.)
-------------------------
fstab line:
/dev/scsi/host0/bus0/target0/lun0/part1 /mnt/IntelligentStick auto sync,user,noauto,rw,iocharset=utf8 0 0
lspci: 00:00.0 Host bridge: VIA Technologies, Inc. P/KN266 Host Bridge 00:01.0 PCI bridge: VIA Technologies, Inc. VT8633 [Apollo Pro266 AGP] 00:09.0 CardBus bridge: ENE Technology Inc: Unknown device 1411 (rev 01) 00:09.1 FLASH memory: ENE Technology Inc: Unknown device 0510 00:0b.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 80) 00:10.0 USB Controller: VIA Technologies, Inc. USB (rev 80) 00:10.1 USB Controller: VIA Technologies, Inc. USB (rev 80) 00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82) 00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge 00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE (rev 06) 00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235 AC97 Audio Controller (rev 50) 00:11.6 Communication controller: VIA Technologies, Inc. Intel 537 [AC97 Modem] (rev 80) 00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 74) 01:00.0 VGA compatible controller: S3 Inc. VT8375 [ProSavage8 KM266/KL266]
/proc/bus/usb/devices: T: Bus=03 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 B: Alloc= 93/900 us (10%), #Int= 1, #Iso= 0 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 2.06 S: Manufacturer=Linux 2.6.4-1-k7 uhci_hcd S: Product=UHCI Host Controller S: SerialNumber=0000:00:10.1 C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
T: Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=1.5 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0f62 ProdID=1001 Rev= 0.01 S: Manufacturer=Acrox S: Product=USB & PS/2 Mouse C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=02 Driver=hid E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=10ms
T: Bus=03 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#= 3 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=16 #Cfgs= 1 P: Vendor=09a6 ProdID=8001 Rev= 1.00 S: Manufacturer=Intelligent Stick S: Product=Intelligent Stick S: SerialNumber=20030429192827-00 C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=05 Prot=50 Driver=usb-storage E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 2.06 S: Manufacturer=Linux 2.6.4-1-k7 uhci_hcd S: Product=UHCI Host Controller S: SerialNumber=0000:00:10.0 C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 4 B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 2.06 S: Manufacturer=Linux 2.6.4-1-k7 ehci_hcd S: Product=EHCI Host Controller S: SerialNumber=0000:00:10.3 C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=256ms
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