Disk defragmenter in Linux

Arthur Pemberton pemboa at gmail.com
Fri Dec 23 08:46:47 UTC 2005

>From my experience at least, defragmenters are not necessary. What I think
was happening in your case is that your system was probably using alout of
virtual memory, and so when it was running low on disk space, it couldn't do
it paging to virtual memory as efficiently as before (just a theory)

On 12/23/05, Fajar Priyanto <fajarpri at cbn.net.id> wrote:
> Hi all,
> A today's mail from one of the new comer brings me this question again in
> my
> mind. Linux disk defragmenter. Does it really not needed?
> I've been googling around and find that this matter has been discussed as
> early as 1998. And it seems that the only distro that provides a
> defragmenter
> program is debian.
> There are several way of fixing a heavy defragmented disk in Linux, but
> the
> easiest way is to copy all of the content of the partition into another
> place, completely erase that partition, and copy back the content.
> My own experience shows me just that. My /home partition was almost full
> with
> only 2% freespace. During that time, my Kmail became very slow such as
> when
> downloading email or when I moved between mail folders. The harddisk was
> just
> spinning all the time.
> Then I copy all my files and mails from the /home partition and move them
> all
> to another partition. Then delete them from /home. After that, I copied
> some
> of the files and mail back to /home in order to keep 20% of /home free. So
> far the performance is ok.
> However, still the question remains. If Linux ext3 doesn't need
> defragmenter,
> and able to defrag itself, what is the process name? And when does it run?
> Can I see it in action? Is there an utility to see on what percentage my
> current defragmentation? I tried fschk but no luck.
> Thank you,
> --
> Fajar Priyanto | Reg'd Linux User #327841 | Linux tutorial
> http://linux2.arinet.org
> 14:32:29 up 1:32, 2.6.14-1.1653_FC4 GNU/Linux
> Let's use OpenOffice. http://www.openoffice.org
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As a boy I jumped through Windows, as a man I play with Penguins.
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