This bug was filed against a series that is no longer supported and so
is being marked as Won't Fix. If this issue still exists in a supported
series, please file a new bug.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
I'm using 10.04, and I have the same prombem...almost the same.
Small files writes even too fast!
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 0.82643 s, 127 MB/s
And the the speed falls more and more, when the file size is growing up.
1000+0 records in
1000+0 records out
You may consider this a silly suggestion but maybe you should upgrade to
10.04? It seems that there are no such problems with its kernel.
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USB pendrive, write speed
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WHY HAS THIS NOT BEEN SORTED!!!??? 2008-2010, I am still having to dual
boot with Win7 just to be able to transfer files to external HDD and USB
sticks.
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Same experience here (though with the latest Debian); using VFAT results
in horrible performance, but NTFS works great. Thanks to NKK for the
hint.
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Ah, forgot to mention, NTFS works fine
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To my experience speed drop happens if the drive uses VFAT, but not with
ext3/4.
So imho there's something wrong with vfat driver part, not USB...
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Almost 2 years now and still no solution for such annoying and deterrent
bug. With this bug, is almost impossible to transfer any file larger
than 1GB to any pendrive, smartphone, etc... Can someone look into this
pleasse.
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You re
Same problem here. Kernel 2.6.31-20, karmic 9.10, amd64. Tested with different
pendrives, mobilephones etc.
Additionaly tested with the proposed kernel (21) with even more errors. This
problem sucks.
I think this is really a critical bug by assuming that thousands of users are
working with pend
As sorry as I am to say this, I did some additional tests and found that async
does not solve the problem after all.
I apologize if I caused confusion.
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USB pendrive, write speed
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Fishor's comment (#11) made me think.
I tried to copy to a flashdisk which I had previosuly manually mounted
with the mount -o async parameter. It seems that speed indeed improved
quite a bit. Can't say for sure though, as terminal doesn't report speed
by default while copying.
The kernel I'm us
Yes, unfortunately the issue remains. Nothing has changed. The transfer
for pendrive stars with a good speed and after some short time, it
starts to decrease and stablish around 300~800kb.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Changed in: linux (Ubuntu)
St
This bug report was marked as Triaged a while ago but has not had any
updated comments for quite some time. Please let us know if this issue
remains in the current Ubuntu release,
http://www.ubuntu.com/getubuntu/download . If the issue remains, click
on the current status under the Status column
Hi guys, 3 new versions has been launched and untill now the problem
still exist. Any news about it?
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Just as I was moving all my files from my EXT4 home drive to an external
USB drive (in case you're wondering, I'm dumping Ubuntu) I hit this
exact same bug. Starting speed is about 40 MB/s with HDD led being
constantly lit and ending up around 3 MB/s with almost no HDD activity
on the LED. This bug
It is would also be helpful to have the dmesg output relating to the USB
sticks insertion. Insert the stick and you should see something similar
to the following in the output of the dmesg command:
[102386.120296] usb 5-1: new high speed USB device using ehci_hcd and
address 5
[102386.25
The speed drops because at the beginning of writing the data will be
copied to the filesystem cache and only after this file system will try
to flash the cache to the usbdrive. If the drive is to slaw it will
reduce copy speed. Normally if file system mount with option sync no
cache will be used a
The bug persists after 2 years, with ubuntu 8.10 write start with 20-30
MB/s and decreases to 2-3 MB/s in a few seconds, sometimes (1%) start
keep on 20-30 MB/s and has no data flow cuts, so seems like a
kernel/mudule fail.
The problem is not a hardware specific (I try with many pc and many
pendri
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
Assignee: (unassigned) => Ubuntu Kernel Team (ubuntu-kernel-team)
Status: Incomplete => Triaged
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Sure, I did a fresh install of ubuntu the other day, but I still start
at about 8mb/sec and ends at about 3-2mb/sec
$ cat /proc/version_signature
Ubuntu 2.6.27-7.16-generic
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Can you paste the output of 'cat /proc/version_signature' so we know
which kernel you are using? Thanks.
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I have used the night updating my ubuntu install (update-manager -d),
but sadly the problem is still a problem. I just moved about 1gb file to
my usb pen, and the speed started at 8 mb/sec and ended at 1.5 mb/sec.
The usb pen is a Kingston DataTravler 100 8GB. The computer is a
ThinkPad T61.
$ lsp
I am having the same problem, starts out at ~20 mb/sec but ends up about
2mb/sec-100kb/sec
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u
The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the
upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would
appreciate it if you could please test this newer 2.6.27 Ubuntu kernel.
There are one of two ways you should be able to test:
1) If you are comfortable
I have a similar problem with usb 2.0 devices,
apparently the system does not find the ehci hardware in my box.
see bug #192234 for detailed diagnostics.
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Thank you for taking the time to report this bug and helping to make
Ubuntu better. This bug did not have a package associated with it, which
is important for ensuring that it gets looked at by the proper
developers. You can learn more about finding the right package at [WWW]
https://wiki.ubuntu.co
Please try if it working with newest livecd
http://cdimage.ubuntu.com/releases/8.04/alpha-3/
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