Nautilus very slow copying huge amount of data

[seraus]

Hello everybody,

1- When copying large amount of data (i.e. 4,1 GB ~ 90 files, ~ 50 Mb each one) to a USB HD (FAT32) with Nautilus, the transfer is very slow. About 3 M Sec in some circumstances.

2- the same with a big file > 3 GB, it's much slower than file copying in XP or Vista.

3- while copying a huge amount of data to my USB HD drive, the computer seems to slow down: windows switching in gnome is much slower, using big application (i.e. Mozilla) is really slower

It's real annoying, please fix this problem, I would like to have performances comparable to my windows environment

Thanks
Sergio

[David Siegel (djsiegel-deactivatedaccount)]

This is a very difficult, system-level issue, not a trivially fixable usability bug.

[jwilkins (jwilkins8475-gmail)]

I like how it was invalidated right away.

This has been on ongoing issue (for me at least) since summer of 2008 with kernel 2.6.24-18 in Hardy Heron. It actually takes less time to shut down Ubuntu, load Vista, copy my files, and restart Ubuntu than it dos to just copy the files from inside Ubuntu.

Why is nobody doing anything about this bug? Do people not realize how widely used USB storage devices are?

[jwilkins (jwilkins8475-gmail)]

I'd also like to add that it's not limited to USB storage - this bug is evident in moving files between partitions on the same HDD and in network transfers. CPU activity is maxxed out with I/O wait time.

[Marcell (balla-marcell)]

I am mainly experiencing this when copying large (> 100 MB) video files to a pen drive.
Since I do this ever week it's very annoying to have slow writing speeds.
Usually the transfer starts fast and continuously slows down until it almost reaches 0 MB/s.
Therefore transffering a 500 MB file can take up to an hour, which is totally unacceptable!

There is also an ubuntuforum topic about this: http://ubuntuforums.org/showthread.php?p=5623965
I really hope that this will get fixed soon as this now represents the only reason I still use MS-W.
Kind of sad, but true.

[Vish (vish)]

This bug has been marked as "invalid" ONLY in the papercuts project,

For resolution of the bug, kindly identify the packages affected and assign the bug to that package, otherwise the devs of that package might not be notified of this problem.

[joux (joux)]

In the forum thread linked by Marcell above, it looks like the i/o scheduler could be the problem
http://ubuntuforums.org/showpost.php?p=8124807&postcount=144

This would probably mean the problem is not Nautilus related.

[penalvch (penalvch)]

seraus, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.11

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.