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Thread: ext4! the speeeeeeeeeeeeeeeeeed!

  1. #11
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    Re: ext4! the speeeeeeeeeeeeeeeeeed!

    http://vizzzion.org/?id=reiser4

    conclusion.
    Overall reiser4 seems to win it, although the results are not weighed. In most cases, reiser4 does a pretty good job. When it comes to copying lots of small files, reiser4 is very fast, especially compared to xfs, end even more to compared to jfs.

    It seems that, apart from all other features, users of reiserfs 3 will gain lots of speed when upgrading to reiser4. Running the benchmarks on a spare disk was a very good idea.

  2. #12
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    Re: ext4! the speeeeeeeeeeeeeeeeeed!

    That diagram on Ars Technica looks impressive, but do not take this literally, without thinking.

    Ext4 is NOT going to be more than twice as fast for any kind of disk operation. And note that the test by Phoronix was done with a solid state drive, and not with a traditional harddrive. The numbers for a traditional harddrive, which has very long seek times compared to an SSD, could be totally different than what this benchmark shows. The title of the Ars Technica article is misleading ("Super fast Ext4 filesystem...").

    It's not realistic to expect that the filesystem will suddenly be more than twice as fast on any computer.

    Some of the other diagrams from the benchmark show something completely different:

    Last edited by jespdj; January 19th, 2009 at 09:24 PM.
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  3. #13
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    Re: ext4! the speeeeeeeeeeeeeeeeeed!

    Will I see any benefit from this if I only use it for /? I reinstall every release, but changing /home would be more trouble.

  4. #14
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    Re: ext4! the speeeeeeeeeeeeeeeeeed!

    Quote Originally Posted by CarpKing View Post
    Will I see any benefit from this if I only use it for /? I reinstall every release, but changing /home would be more trouble.
    I read somewhere that it's going to be possible to convert ext3 to ext4, rather than having to reformat.

  5. #15
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    Re: ext4! the speeeeeeeeeeeeeeeeeed!

    Quote Originally Posted by cdekter View Post
    I read somewhere that it's going to be possible to convert ext3 to ext4, rather than having to reformat.
    Yep it is possible. Not sure how, but everyone says it is possible. google it.

  6. #16
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    Re: ext4! the speeeeeeeeeeeeeeeeeed!

    Quote Originally Posted by cdekter View Post
    I read somewhere that it's going to be possible to convert ext3 to ext4, rather than having to reformat.
    http://kernelnewbies.org/Ext4#head-3...148a1e28c6a9d4
    http://kernelnewbies.org/Ext4
    http://www.ibm.com/developerworks/li...xt4/index.html
    Last edited by mips; January 20th, 2009 at 06:48 PM.

  7. #17
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    Re: ext4! the speeeeeeeeeeeeeeeeeed!

    So if Juanty uses ext 4, I guess I can not dual boot it with Intrepid (ext 3)?

  8. #18
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    Re: ext4! the speeeeeeeeeeeeeeeeeed!

    Quote Originally Posted by sofasurfer View Post
    So if Juanty uses ext 4, I guess I can not dual boot it with Intrepid (ext 3)?
    You can, but EXT4 is not backwards compatible with EXT3.
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  9. #19
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    Re: ext4! the speeeeeeeeeeeeeeeeeed!

    Please clarify your meaning..."EXT4 is not backwards compatible with EXT3".

  10. #20
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    Re: ext4! the speeeeeeeeeeeeeeeeeed!

    Quote Originally Posted by sofasurfer View Post
    Please clarify your meaning..."EXT4 is not backwards compatible with EXT3".
    As in, EXT4 cannot be mounted as EXT3, and thus Intrepid won't be able to mount it unless you install the newer kernel and e2fsprogs from Jaunty.
    See my themes here! | Dont preach Linux, mention it | Make GNOME Themes
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