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Thread: Does linux Need Defrag?

  1. #21
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    Mar 2007
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    Re: Does linux Need Defrag?

    Paddy, I suggest to install BleachBit program.
    Code:
    sudo apt-get install bleachbit
    Purpose of this program is to clean-up temporally files from Ubuntu. One of the thinks is to compact Firefox sql-lite database (see attached picture of GUI program).

    Idea is to clean-up hard disk from unnecessary files and so free up disk space.
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  2. #22
    Join Date
    May 2008
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    Ubuntu 12.04 Precise Pangolin

    Re: Does linux Need Defrag?

    Quote Originally Posted by lasleym View Post
    Thanks for the 'speedy' fix.
    Pleasure!

    Quote Originally Posted by abcuser View Post
    Paddy, I suggest to install BleachBit program.
    I'll have a look at that. It's a bit like CCleaner on Windows, it seems.
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  3. #23
    Join Date
    Sep 2008
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    Algeria
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    56
    Distro
    Ubuntu Development Release

    Re: Does linux Need Defrag?

    Under ext3/4 filesystems , we do not need to defrag partitions , because these filesystems need only 5% of free space to work great its architecture permits that.

  4. #24
    Join Date
    Jan 2009
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    584

    Re: Does linux Need Defrag?

    It just came to my mind...you're using gnome...add the CPU frequency applet and set it to userspace and then set it to the full core frequency, if it steps down automatically or even does not step up, it most probably means -

    1)CPU fan/ventilation in general is bad
    2)Your system is dirty...open it up and clean it.

    Also check in the resources tab of your system monitor if the memory consumption is high and/or CPU utilization is high.

  5. #25
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    Re: Does linux Need Defrag?

    Quote Originally Posted by abcuser View Post
    Paddy, I suggest to install BleachBit program.
    Code:
    sudo apt-get install bleachbit
    Purpose of this program is to clean-up temporally files from Ubuntu. One of the thinks is to compact Firefox sql-lite database (see attached picture of GUI program).

    Idea is to clean-up hard disk from unnecessary files and so free up disk space.
    At one point I had 1.1 GB free space in the whole of my system!...that pendrive where I installed Gentoo had 860kb of free space and did not even give a glimpse of slowing down.

    So the speed in general for all Linux distros does not have to do with free space.

  6. #26
    Join Date
    Oct 2009
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    18
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    Ubuntu 8.04 Hardy Heron

    Re: Does linux Need Defrag?

    BleachBit FTW!!!

    Thx for the suggestion!

  7. #27
    Join Date
    Jun 2009
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    Ubuntu Studio 9.10 Karmic Koala

    Re: Does linux Need Defrag?

    Quote Originally Posted by nakama85 View Post
    I realise there is somewhat of a debate about this. However, I seem to have noticed a small but steady decline of speed in my computer. So I was wondering if maybe I need to defrag.

    Even if it wouldn't help, would it hurt to try? What program should I use?

    I do admit I have downloaded a lot of large files lately but I still have plenty of HD space left.

    Any thoughts?
    Just a thought.What is your swap situation?

  8. #28
    Join Date
    Jun 2006
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    2,930

    Re: Does linux Need Defrag?

    Another thing to think about:
    Hard drives will degrade over time. Bad sectors are transparently remapped to a different physical location. This remapping can fragment a file without the OS knowing the file is actually fragmented. Modern hardrives have algorithims in place to minimize head movement by retrieving data out of order, so defragging may not even offer much benefit anyway.

    The best thing I would recommend is to keep plenty of free space. The less free space you have, the more abuse your drive has to endure.
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  9. #29
    Join Date
    Nov 2008
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    444
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    Ubuntu 10.04 Lucid Lynx

    Re: Does linux Need Defrag?

    Quote Originally Posted by sliketymo View Post
    Just a thought.What is your swap situation?
    Swap is set to 3.91 Gb

  10. #30
    Join Date
    May 2005
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    Ubuntu 12.04 Precise Pangolin

    Re: Does linux Need Defrag?

    I'm surprised no one has linked to this yet:
    Why doesn't Linux need defragmenting?

    It's a pretty thorough explanation.

    I've been using Windows for decades, and I've never found defragmentation to actually enhance performance. Seems like a placebo.

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