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Thread: Running ZFS With CAM-based ATA On FreeBSD 8.1

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  1. #1
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    Default Running ZFS With CAM-based ATA On FreeBSD 8.1

    Phoronix: Running ZFS With CAM-based ATA On FreeBSD 8.1

    As was mentioned in last Friday's article, Which Is Faster: Debian Linux or FreeBSD, tests of FreeBSD atop the ZFS file-system (rather than UFS2+S) are currently underway and those results are expected to be published in full later this week as the ZFS disk performance is compared directly to UFS2+S, UFS2+J, and also Ubuntu Linux with the EXT4 and Btrfs file-systems. Today though we have a few ZFS performance numbers to share as we look at the performance of the new CAM-ATA sub-system on FreeBSD.

    http://www.phoronix.com/vr.php?view=15148

  2. #2
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    Jul 2010
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    Very interesting, I wonder what the devs have to say about the results.

  3. #3
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    probably nothing? Remember, freebse devs told everyone and the world that softupdates were better than journaling and 'free'. Without performance impact. Until other showed them:
    no.

    did they retract? did they do something about it? No, just silence.

  4. #4
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    Quote Originally Posted by energyman View Post
    probably nothing? Remember, freebse devs told everyone and the world that softupdates were better than journaling and 'free'. Without performance impact. Until other showed them:
    no.
    When has that been shown? Never seen a benchmark between UFS with softupdates and UFS with journalling.

  5. #5
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    Here is the only benchmarking test between UFS journaling and softupdates that I could find quickly. Maybe this is something Phoronix should test? After all, most popular Linux filesystems use journaling, so it would be good to know how well it stands up against softupdates.

  6. #6
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    there have been tests comparing ufs with softupdates and without. Since there is no journaling for ufs the rest of your posting aswers yourself.

  7. #7
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    Quote Originally Posted by energyman View Post
    Since there is no journaling for ufs
    There is. It's called gjournal.

  8. #8
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  9. #9
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    oh sorry. And when was it introduced?

  10. #10
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    May 2009
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    Quote Originally Posted by energyman View Post
    when was it introduced?
    In 2008 with the release of FreeBSD 7.0.

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