Hi
I tried to disable the wifi from the comand line
sudo rmmod r8192*
 but i got this message

ganesh@ganesh-HCL-ME-Laptop:~$ sudo rmmod r8192*
[sudo] password for ganesh:
ERROR: Module r8192* does not exist in /proc/modules
ganesh@ganesh-HCL-ME-Laptop:~$

so i disabeled it from the hardware switch (Fn+F11)which didn't improve the
copy time

then i captured the usbmon results which i have attached
then when i ran the 'dd'
which gave this
ganesh@ganesh-HCL-ME-Laptop:~$ sudo dd if=/dev/zero of=/media/udisk/tmp
oflag=direct bs=120K count=2K
[sudo] password for ganesh:
dd: opening `/media/udisk/tmp': Not a directory

 i also ran ran the old dd command you have given and this is the result
ganesh@ganesh-HCL-ME-Laptop:~$ sudo dd if=/dev/null of=/media/udisk bs=120K
count=1K
0+0 records in
0+0 records out
0 bytes (0 B) copied, 8.262e-06 s, 0.0 kB/s
ganesh@ganesh-HCL-ME-Laptop:~$
funny thing is i dont know what i am doing, i just followed your
instructions
plz suggest

On Thu, Sep 8, 2011 at 9:37 AM, Ming Lei <email address hidden> wrote:

> Hi,
>
> On Wed, Sep 7, 2011 at 5:35 PM, Ganesh <email address hidden> wrote:
> > hi
> > sorry to ask this since this is new to me (i mean to say linux and ubuntu
> )
> > how to capture the usbmon log for the 'dd' test, should i do the same as
> you
> > have instructed me to do earlier
>
> Yes, do the same as before, just start to capture usbmon first, then run
> 'dd'.
>
> BTW, your disabling wifi should be good, but it is safe to do with
> below:
>
>          sudo rmmod r8192*
>
>
> thanks,
> --
> Ming Lei
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/834476
>
> Title:
>  siletransfer to usb drive very slow in ubuntu 11.04
>
> Status in “linux” package in Ubuntu:
>  Confirmed
>
> Bug description:
>  hello
>  i have installed ubuntu 11.04 64bit on my laptop. recently i am facing a
> problem with file transfer to the usb drive as it takes a long time to
> transfer.problem is like, in the start the copying speed is like 17mb/s and
> after copying around 300mb it gradually drops down to less than 1mb speed
> and stays at this copying status for a long time. this problem is repeatable
> and i have tried a dozen of usb drives but with no help. so plz suggest a
> remedy
>  ---
>  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
>  Architecture: amd64
>  ArecordDevices:
>   **** List of CAPTURE Hardware Devices ****
>   card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
>     Subdevices: 1/1
>     Subdevice #0: subdevice #0
>  AudioDevicesInUse:
>   USER        PID ACCESS COMMAND
>   /dev/snd/controlC0:  ganesh     1414 F.... pulseaudio
>  CRDA: Error: [Errno 2] No such file or directory
>  Card0.Amixer.info:
>   Card hw:0 'Intel'/'HDA Intel at 0xf8800000 irq 42'
>     Mixer name : 'Intel IbexPeak HDMI'
>     Components : 'HDA:10ec0272,15580772,00100001
> HDA:80862804,80860101,00100000'
>     Controls      : 28
>     Simple ctrls  : 14
>  DistroRelease: Ubuntu 11.04
>  HibernationDevice: RESUME=UUID=375bf7f1-30f5-490f-886a-272d19dde7c3
>  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64
> (20110427.1)
>  Lsusb:
>   Bus 002 Device 003: ID 5986:0241 Acer, Inc BisonCam, NB Pro
>   Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
>   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>   Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
>   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>  MachineType: HCL Infosystems Limited HCL ME Laptop
>  Package: linux (not installed)
>  ProcEnviron:
>   LANGUAGE=en_IN:en
>   LANG=en_IN
>   LC_MESSAGES=en_IN.UTF-8
>   SHELL=/bin/bash
>  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-11-generic
> root=UUID=4d040ce3-7fcf-4ff0-bc82-627aa4e33636 ro quiet splash vt.handoff=7
>  ProcVersionSignature: Ubuntu 2.6.38-11.48-generic 2.6.38.8
>  RelatedPackageVersions:
>   linux-restricted-modules-2.6.38-11-generic N/A
>   linux-backports-modules-2.6.38-11-generic  N/A
>   linux-firmware                             1.52
>  RfKill:
>   0: phy0: Wireless LAN
>        Soft blocked: no
>        Hard blocked: no
>  Tags:  natty running-unity
>  Uname: Linux 2.6.38-11-generic x86_64
>  UpgradeStatus: No upgrade log present (probably fresh install)
>  UserGroups: adm admin cdrom dialout lpadmin netdev plugdev sambashare
>  dmi.bios.date: 10/01/2010
>  dmi.bios.vendor: Phoenix Technologies LTD
>  dmi.bios.version: 1.00.08HC2
>  dmi.board.asset.tag: Tag 12345
>  dmi.board.name: HCL ME Laptop
>  dmi.board.vendor: HCL
>  dmi.board.version: Not Applicable
>  dmi.chassis.asset.tag: No Asset Tag
>  dmi.chassis.type: 9
>  dmi.chassis.vendor: HCL
>  dmi.chassis.version: N/A
>  dmi.modalias:
> dmi:bvnPhoenixTechnologiesLTD:bvr1.00.08HC2:bd10/01/2010:svnHCLInfosystemsLimited:pnHCLMELaptop:pvrNotApplicable:rvnHCL:rnHCLMELaptop:rvrNotApplicable:cvnHCL:ct9:cvrN/A:
>  dmi.product.name: HCL ME Laptop
>  dmi.product.version: Not Applicable
>  dmi.sys.vendor: HCL Infosystems Limited
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/834476/+subscriptions
>



-- 
*Ganesh Prasad Mayya*
*Protein Chemistry and Technology*
*Central Food Technology Research Institute*