New subject: [opensuse] "Cut" performance in kde vs "mv" in shell

21 May 2008

      rvJJax wrote:
...
(maybe i make a miscommunication in my first email. so let's make this
clear.)
Sam Clemens wrote:
...
rvJJax wrote:
...
Konqueror have their own protocol/function (what they call it ?) for
browsing directory. i.e: file:///, smb://, fish:// etc.
i have two file X and Y, X is 4 GB and Y is 3 GB, and i want to move it
to another directory in the same machine and the same partition.
so i used konqueror. selecting this two files, and then pressing
"CTRL-X", and then click the directory where i want to paste, and press
"CTRL-V".
and then pop up window come, displaying progress bar, saying it take
more than 3 minutes or more.
That's because konqueror is, for each file,
      reading, byte for byte, each file, and
      CREATING a new file in the new location,
      and then deleting the old files

      Very inefficient, and... wasteful.

The Konqueror developers SHOULD have written the code to fork
off one or more mv commands, because mv is optimized (unix
philosophy...a command does ONE thing, and does it VERY WELL),
whereas Konqueror's "reinvention of the wheel" has produced
a somewhat round-ish polygon instead of the efficient,
circular object which is desired.
...
...
...
i just realized that "Cut" and "Paste", when the "source" and
"destination" is in the same machine and partition, is like doing
download from another machine.
and then, i try it back in shell using Konsole, by using "mv" command,
is just take a second.
Because, as explained before, all the mv command does is link
the files into the new directory, and then unlink them from
their original directory.

This is a VERY simple operation -- only a couple of records
changed in two directories, and disk write consists of only
a few blocks
...
...
...
When i go to shell and do,
# mv x y ../dir
is just like a second, maybe less (where x is 4GB and y is 3GB)
from my perspective view this is a bug. but maybe other's have different
view.
Why would that be a bug that mv works so quickly?
is not mv is issue here, it is kde "Cut 'n Paste" one.
all mv does is unlink a file and then re-link the file.
So to mv two files doesn't take anywhere near a second,
unless the new directory is on a different filesystem
(partition).
...
i know that.
Then what are you talking about?
...
...
Seriously -- the Microsoft way of moving a file by performing
a copy, even from one directory to another directory on the
same partition is a bug...there's no reason to perform all
of that I/O.
that is what happen in my kde / konqueror.
since i am usually updated my kde in the latest version in repos, i
think this problem is only occur in my kde box.
that's way i asking other if they have the same problem like above.
????
...
...
...
question 1: so what do you think ? bug or not ?
question 2: if this is a bug where should i report, bugzilla.novell.com
first or going directly to bugs.kde.org ?
Here's some better questions:
What illicit drugs are you taking?
What amounts of those drugs are you using?
i take coffea arabica one cup every morning. is it dangerous ?
Apparently for you.
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Re: [opensuse] "Cut" performance in kde vs "mv" in shell

Washington Irving

John Andersen

M. Skiba

Dave Howorth

James Knott

Randall R Schulz

John Andersen

Washington Irving

John Andersen

Washington Irving

Washington Irving

John Andersen

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