I noticed this slowness from Ubuntu 13.04 onwards. 12.04 was a lot
better though no speed demon. From 13.04 to 14.04 the transfer starts
more or less ok and then slows, almost stops dropping down to about
600kb/s, then speeds up again to about 3 mb/s flucuating up and down
from 1.2 mb/s to 3 mb/s.
Orionds, thank you for your comment. So your hardware and problem may be
tracked, could you please file a new report with Ubuntu by executing the
following in a terminal while booted into a Ubuntu repository kernel (not a
mainline one) via:
ubuntu-bug linux
For more on this, please read the
Ubuntu-QC-1, what would be the earliest Ubuntu release you personally
used that demonstrates this problem?
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https://bugs.launchpad.net/bugs/1308751
Title:
Transfer to USB drive slows
I'm afraid I cannot say with any precision, but this is not recent.
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Title:
Transfer to USB drive slows down to a crawl
To manage notifications
** Description changed:
- This is a duplicate of bug #500069 filled to be able to track the
- hardware as instructed by Christopher M. Penalver.
-
This problem has been affecting this computer release after release for as
long as I can remember.
Kernel is 3.13.0-24-generic #46
When
** Tags added: latest-bios-1501
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Title:
Transfer to USB drive slows down to a crawl
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** Tags added: kernel-bug-exists-upstream-v3.15-rc1
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Title:
Transfer to USB drive slows down to a crawl
To manage notifications about this bug
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.15 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix
kernel-bug-exists-upstream
Just tried 13.5-rc1-trusty and the problem persists.
Transferred a 2.1 GB file to the same USB drive, transfer started at
50Mb/s, was down to 20 Mb/s after 1/3, to 11 Mb/s after 1/2 and finished
at 6.2 Mb/s and staid there completed for over 5 minutes before the
dialog
