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
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** 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
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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USB pendrive, write speed
https://bugs.launchpad.net/bugs/182931
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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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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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USB pendrive, write speed
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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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USB pendrive, write speed
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Ah, forgot to mention, NTFS works fine
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USB pendrive, write speed
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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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USB pendrive, write speed
https://bugs.launchpad.net/bugs/182931
You
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
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
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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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)
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
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
Hi guys, 3 new versions has been launched and untill now the problem
still exist. Any news about it?
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USB pendrive, write speed
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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
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
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
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
Assignee: (unassigned) = Ubuntu Kernel Team (ubuntu-kernel-team)
Status: Incomplete = Triaged
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USB pendrive, write speed
https://bugs.launchpad.net/bugs/182931
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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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USB pendrive, write speed
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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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USB pendrive, write speed
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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.
$
I am having the same problem, starts out at ~20 mb/sec but ends up about
2mb/sec-100kb/sec
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USB pendrive, write speed
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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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USB pendrive, write speed
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Please try if it working with newest livecd
http://cdimage.ubuntu.com/releases/8.04/alpha-3/
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USB pendrive, write speed
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Ubuntu better. This bug did not have a package associated with it, which
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