This version is no longer supported. If this is still reproducible on a
newer/supported version, please reopen.
** Changed in: linux (Ubuntu)
Status: Incomplete => Invalid
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1032342
Title:
090c:1000 file transfer to/from USB 2.0 flash drive, via 3.0 port at
best 50-60 Mb/s
Status in Linux:
New
Status in linux package in Ubuntu:
Invalid
Bug description:
USB transfers to/from flash drives are very slow. Disk Utility reports
the various drives I've tried are connected at 480Mb/s, but it's rare
to see transfers faster than 50-60Mb/s at best, probably less as
nautilus only reports average speed which is skewed by the first 300Mb
being buffered.
Sometimes I get the first 300MB very fast followed by very slow and
ending with a long pause while the write buffer writes out, sometimes
they're just very slow from the start. Doesn't seem to matter if I'm
transferring one big file or lots of little files. Seems faster with
USB HDs. Flash drives I've tried so far are all working fine in other
OSes on the same machine.
Also occurring with bleeding edge kernel (which I'm using because
anything younger won't suspend properly on my machine),
3.5.0-999-generic #201207280406 SMP Sat Jul 28 08:07:29 UTC 2012
x86_64 x86_64 x86_64 GNU/Linux.
The reason I'm reporting it here rather than at kernel.org is that I
don't think it's a kernel bug, I think it's to do with Debian/Ubuntu's
kernel patches. Because it doesn't happen in the live version of
Fedora 17 I tried, but it does happen with Debian Wheezy. Windows 7
is also fast.
Laptop is a Toshiba L830-114. Attached is a usbmon log of dd
if=/dev/zero of=/media/littlun/tmp oflag=direct bs=120K count=2K as
recommended by Ming Lei here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/834476
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-27-generic 3.2.0-27.43
ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21
Uname: Linux 3.2.0-27-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu11
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: mat 1731 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xc0600000 irq 43'
Mixer name : 'Intel PantherPoint HDMI'
Components : 'HDA:14f1506e,1179fb90,00100003
HDA:80862806,1179fb90,00100000'
Controls : 25
Simple ctrls : 12
CurrentDmesg: [ 30.118970] wlan1: no IPv6 routers present
Date: Thu Aug 2 20:18:24 2012
HibernationDevice: RESUME=UUID=99547817-de1c-4c35-9bb3-845962582ed6
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64
(20120425)
MachineType: TOSHIBA SATELLITE L830
ProcEnviron:
LANGUAGE=en_GB:en
TERM=xterm
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-27-generic
root=UUID=1c27fdd8-65a9-4b9c-8e8b-ba5e4660a55b ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-27-generic N/A
linux-backports-modules-3.2.0-27-generic N/A
linux-firmware 1.79
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/11/2012
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: 1.50
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: Type2 - Board Product Name1
dmi.board.vendor: Type2 - Board Vendor Name1
dmi.board.version: Type2 - Board Version
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: OEM Chassis Manufacturer
dmi.chassis.version: OEM Chassis Version
dmi.modalias:
dmi:bvnInsydeCorp.:bvr1.50:bd06/11/2012:svnTOSHIBA:pnSATELLITEL830:pvrPSK7YE-00J004EN:rvnType2-BoardVendorName1:rnType2-BoardProductName1:rvrType2-BoardVersion:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion:
dmi.product.name: SATELLITE L830
dmi.product.version: PSK7YE-00J004EN
dmi.sys.vendor: TOSHIBA
To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1032342/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
