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Thread: Difference between ext 3 and ext 4?

  1. #1
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    Difference between ext 3 and ext 4?

    I know there are differences between them,but what are they?

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    Re: Difference between ext 3 and ext 4?

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  3. #3
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    Re: Difference between ext 3 and ext 4?

    Here are wikipedia articles on the matter:
    http://en.wikipedia.org/wiki/Ext3

    http://en.wikipedia.org/wiki/Ext4

    What you use in the end is up to you, there is no real advantage to "upgrade" from ext3 to 4 other then speed and power, but EXT3 is the more stable right now in my opinion.
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  4. #4
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    Re: Difference between ext 3 and ext 4?

    Thanks guys, I thought I was missing out on something by staying with ext 3.

  5. #5
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    Re: Difference between ext 3 and ext 4?

    Quote Originally Posted by Eagles18 View Post
    Thanks guys, I thought I was missing out on something by staying with ext 3.
    Nah you are not missing out on much by using EXT3, like I said speed is a big advantage of EXT4.
    Its not a security update and nor will EXT3 go out of style anytime soon.
    Heck EXT2 is still around, and one can use it without issue...
    But it does suffer when power outages happen.
    Last edited by SunnyRabbiera; November 21st, 2009 at 10:55 PM.
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  6. #6
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    Re: Difference between ext 3 and ext 4?

    I'm a bit confused.
    The Wiki page for Ext4 states that it exceeds ext3 64 bit address limit.

    2^64 = 18, 446, 744, 073, 709, 551, 616
    ______Exa,Peta,Tera,Giga,Mega,Kilo,Byte


    That is 18 Exabyte! That's more than 18 million Terabyte!
    Who need more than that?

    But then they continue to say Ext 4 can "only" handle 1 Exabyte?

    None the less, I'm VERY pleased with Ext4, it's fast, and when disk checks run, they take only about 1/10 th. the time they did on ext3.
    I didn't time it, but that's about how it feels to me.

    Edit:
    Saw Ext 3 actually is maxed at 16 Terabyte disks, which is far from 64 bit!
    Last edited by BuffaloX; November 22nd, 2009 at 01:18 AM.
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  7. #7
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    Re: Difference between ext 3 and ext 4?

    The main difference i've noticed is that fsck completes a LOT faster than ext3.
    I've also noticed it's substantially more snappy when copying large amounts of small files.

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