[Pkg-mc-devel] [Bug 431207] Re: mc: Slows down desktop to a crawl when copying/moving data to external usb disk
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431207 at bugs.launchpad.net
Thu Apr 7 05:27:38 UTC 2016
** Changed in: mc
Status: New => Confirmed
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mc: Slows down desktop to a crawl when copying/moving data to external
Status in Midnight Commander:
Status in mc package in Ubuntu:
Binary package hint: mc
I was just copying about 20GB of data from the internal hard disk to
an external one using mc (midnight commander). Using mc the desktop
almost freezes, at least it takes 4 minutes until firefox starts.
Thunderbird does not show any emails anymore. Mp3 playback becomes
horribly interrupted. Switching between applications takes ages.
Using top on a text console, I saw that the %wa (iowait) entry in
'top' gets up to 85% to 90% percent. Stopping the data copy in mc
restores the good behaviour of the desktop.
I then tried moving the data with mv. There is no iowait using mv, the
desktop keeps responsive, only the %us (user space) entry in top shows
some 80% percent, but that does not seem to slow down my desktop.
I think that mc should change it's behaviour when copying to that used
$ lsb_release -rd
Description: Ubuntu 8.04.3 LTS
$ apt-cache policy mc
*** 1:4.6.1-8ubuntu1 0
500 http://de.archive.ubuntu.com hardy/universe Packages
This is on a Pentium M 1200MHz.
This is the external usb disk:
Bus 004 Device 004: ID 0d49:5020 Maxtor
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