Comment 28 for bug 834476

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
>
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>

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