hi there was no improvements even after disabling the realtek wifi so I did what you told me to do and here is the report
ganesh@ganesh-HCL-ME-Laptop:~$ sudo dd if=/dev/null of=/media/udisk bs=120K count=1K [sudo] password for ganesh: 0+0 records in 0+0 records out 0 bytes (0 B) copied, 1.717e-05 s, 0.0 kB/s thanks On Wed, Sep 7, 2011 at 7:40 AM, Ming Lei <[email protected]> wrote: > Hi, > > On Wed, Sep 7, 2011 at 12:53 AM, Ganesh <[email protected]> wrote: > > Dear Ming lei, > > I am new to linux and ubuntu I have tried to follow the instruction as > > given by the link you have provided hope this is what is expected from my > > side i will be happy to hear from you if this is not how it is done plz > > suggest. > > This is just what I expected, nice job, :-) > > > I have tried to capture the usbmon results as per the instruction. this > what > > i have listened on all the serial buses and the out is named 1.mon.out > > thanks > > I only had a glance at the trace, and found some transfer is very slow, > see below: > > The slowest one(maybe) takes about 706ms to transfer only 120K bytes to > your usb mass storage disk: > > /*CB: send out WRITE10 command*/ > ffff8800b1fb2780 3396606803 S Bo:2:004:2 -115 31 = 55534243 25220000 > 00e00100 00000a2a 00004cdf c80000f0 00000000 000000 > ffff8800b1fb2780 3396607106 C Bo:2:004:2 0 31 > > > /*DATA: write out 120K bytes to usb mass storage disk*/ > ffff880093a52480 3396607143 S Bo:2:004:2 -115 122880 = 30317762 > 10000000 18752006 e0010000 30306463 00000000 00772006 5d050000 > ffff880093a52480 3397313202 C Bo:2:004:2 0 122880 > > > /*CS: get the ack from device*/ > ffff8800b1fb2780 3397313366 S Bi:2:004:1 -115 13 < > ffff8800b1fb2780 3397313583 C Bi:2:004:1 0 13 = 55534253 25220000 00000000 > 00 > > > Also there are other more slow transfers, see [1]. > > >From 1.3 and 1.4, CPU takes long time to get CS, and looks like it is very > odd, maybe some device driver disabled irq for long time, so some > suggestions for you: > > - someone reported realtek wifi driver may disable irq for long time > sometime, so please disable your wifi and do the file transfer test to > see if there > are any improvements. > > - if no improvements, run the tests below to post the reports: > > dd if=/dev/null of=/media/udisk bs=120K count=1K > > /media/udisk is the mount point of your usb mass storage disk, please be > careful to do the tests since it may destroy your data in usb disk. > > > [1], some slow transfers, you can find more in your capture. > > 1.1 ~154ms for 88KB > ffff8800b1fb2780 3397827772 S Bo:2:004:2 -115 31 = 55534243 41220000 > 00600100 00000a2a 00004cf2 180000b0 00000000 000000 > ffff8800b1fb2780 3397827945 C Bo:2:004:2 0 31 > > ffff88011ee56f00 3397827962 S Bo:2:004:2 -115 90112 = 30317762 > 10000000 bca7fc19 e0010000 30306463 00000000 a4a9fc19 cf100000 > ffff88011ee56f00 3397980947 C Bo:2:004:2 0 90112 > > ffff8800b1fb2780 3397980964 S Bi:2:004:1 -115 13 < > ffff8800b1fb2780 3397981320 C Bi:2:004:1 0 13 = 55534253 41220000 00000000 > 00 > > > 1.2 ~58ms for 120KB > ffff8800b1fb2780 3396256806 S Bo:2:004:2 -115 31 = 55534243 1c220000 > 00e00100 00000a2a 00004cd9 a00000f0 00000000 000000 > ffff8800b1fb2780 3396266697 C Bo:2:004:2 0 31 > > ffff880093a8d900 3396266742 S Bo:2:004:2 -115 122880 = 0940c0a0 > 123ea3d0 7eacbc4b 2e066a29 c2e06c9e 55e4d149 f0820de8 3d0865ca > ffff880093a8d900 3396314450 C Bo:2:004:2 0 122880 > > ffff8800b1fb2780 3396314494 S Bi:2:004:1 -115 13 < > ffff8800b1fb2780 3396314698 C Bi:2:004:1 0 13 = 55534253 1c220000 00000000 > 00 > > > 1.3 ~20ms for 120KB > ffff8800b1fb2780 3243296745 S Bo:2:004:2 -115 31 = 55534243 63110000 > 00e00100 00000a2a 000037fa e00000f0 00000000 000000 > ffff8800b1fb2780 3243297050 C Bo:2:004:2 0 31 > > ffff8801089bb6c0 3243297068 S Bo:2:004:2 -115 122880 = a1ad1aec > fcfd9314 0c681d2f 08144aa3 f53ea582 a1edf78b f8d7f6a1 270ddfb6 > ffff8801089bb6c0 3243310423 C Bo:2:004:2 0 122880 > > ffff8800b1fb2780 3243310443 S Bi:2:004:1 -115 13 < > ffff8800b1fb2780 3243316803 C Bi:2:004:1 0 13 = 55534253 63110000 00000000 > 00 > > > 1.4 ~34ms for 104KB > ffff8800b1fb2780 3243316857 S Bo:2:004:2 -115 31 = 55534243 64110000 > 00a00100 00000a2a 000037fb d00000d0 00000000 000000 > ffff8800b1fb2780 3243326801 C Bo:2:004:2 0 31 > > ffff8800a2b299c0 3243326816 S Bo:2:004:2 -115 106496 = 908c11fb > ec7c0c5d 4578fc69 cf32bfaa 6d307432 2feb7a7a 69626833 23425a6b > ffff8800a2b299c0 3243345901 C Bo:2:004:2 0 106496 > > ffff8800b1fb2780 3243345931 S Bi:2:004:1 -115 13 < > ffff8800b1fb2780 3243350886 C Bi:2:004:1 0 13 = 55534253 64110000 00000000 > 00 > > > 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* -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/834476 Title: siletransfer to usb drive very slow in ubuntu 11.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/834476/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
