** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/541937
Title:
Copying files to USB flash drive is extremely slow
Status in “linux” package in Ubuntu:
Confirmed
Status in “linux” package in Fedora:
Unknown
Status in openSUSE:
Unknown
Bug description:
Copying files from an internal hard drive to an external USB pandrive
is slowing down during this process in Lucid Lynx alpha3 with all the
updates until now. Also note that the copying speed is well below the
standard rate for high-speed USB devices even in the initial state.
As a first look this phenomenon is independent of the filesystem of
the USB stick although some effect may be observed. I formatted it
either ext3, ntfs or vfat the result was the same. Copying starts
around 20-30 MB/sec transfer speed and around 300 MB copied materials
the process is slowing down below 15 MB/sec and between 400-500 MB
transfered data it is below 10 MB/sec. Reaching the 1GB amount of
copied data the speed is only around 2 MB/sec. In case of using vfat
file system the transfer speed may go below the 1MB/sec transfer speed
at this stage.
The number of the files I transfered from my hard drive to a 16GB USB
pandrive were 350 with a total size of 5.4GB.
In an other experiment (with ntfs usb partition) transferring only one
large file having a size of 2.7GB took more than a hour (0.7 MB/sec in
average)!
ProblemType: Bug
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: zoli 1325 F.... pulseaudio
/dev/snd/pcmC0D0p: zoli 1325 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'IXP'/'ATI IXP rev 2 with ALC250 at 0xc0003400, irq 17'
Mixer name : 'Realtek ALC250 rev 2'
Components : 'AC97a:414c4752'
Controls : 33
Simple ctrls : 21
Card1.Amixer.info:
Card hw:1 'Modem'/'ATI IXP Modem rev 2 at 0xc0003800, irq 17'
Mixer name : 'Silicon Laboratory Si3036,8 rev 15'
Components : 'AC97m:53494c2f'
Controls : 3
Simple ctrls : 3
Card1.Codecs.codec97.0.mc97.1.1:
1-1/0: Silicon Laboratory Si3036,8 rev 15
Extended modem ID: codec=1 LIN1
Modem status : GPIO MREF ADC1 DAC1 PRE(ADC2) PRF(DAC2) PRG(HADC)
PRH(HDAC)
Line1 rate : 13714Hz
Date: Fri Mar 19 13:46:04 2010
DistroRelease: Ubuntu 10.04
HibernationDevice: RESUME=UUID=3ce2aaac-b25e-4863-91a2-0a57ade09901
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
Lsusb:
Bus 003 Device 003: ID 15d9:0a33 Dexon Mouse
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 018: ID 3538:0059 Power Quotient International Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Acer, inc. Ferrari 4000
Package: linux-image-2.6.32-16-generic 2.6.32-16.25
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-16-generic
root=UUID=4ceac70f-55c9-4a91-baae-aee960ec8114 ro quiet splash
ProcEnviron:
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
Regression: No
RelatedPackageVersions: linux-firmware 1.32
Reproducible: Yes
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
TestedUpstream: No
Uname: Linux 2.6.32-16-generic x86_64
dmi.bios.date: 03/20/06
dmi.bios.vendor: Acer
dmi.bios.version: 3A27
dmi.board.name: Ferrari IV
dmi.board.vendor: Acer, Inc.
dmi.board.version: Not Applicable
dmi.chassis.type: 1
dmi.chassis.vendor: , Inc.
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnAcer:bvr3A27:bd03/20/06:svnAcer,inc.:pnFerrari4000:pvrNotApplicable:rvnAcer,Inc.:rnFerrariIV:rvrNotApplicable:cvn,Inc.:ct1:cvrN/A:
dmi.product.name: Ferrari 4000
dmi.product.version: Not Applicable
dmi.sys.vendor: Acer, inc.
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