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    SubjectRe: [ANNOUNCE] Ext3 vs Reiserfs benchmarks
    On Jul 12, 2002  10:21 -0600, Dax Kelson wrote:
    > ext3 data=ordered
    > ext3 data=writeback
    > reiserfs
    > reiserfs notail
    >
    > http://www.gurulabs.com/ext3-reiserfs.html
    >
    > Any suggestions or comments appreciated.

    Did you try data=journal mode on ext3? For real-life workloads sync-IO
    workloads like mail (e.g. not benchmarks where the system is 100% busy)
    you can have considerable performance benefits from doing the sync IO
    directly to the journal instead of partly to the journal and partly to
    the rest of the filesystem.

    The reason why "real life" is important here is because the data=journal
    mode writes all the files to disk twice - once to the journal and again
    to the filesystem, so you must have some "slack" in your disk bandwidth
    in order to benefit from this increased throughput on the part of the
    mail transport.

    Cheers, Andreas
    --
    Andreas Dilger
    http://www-mddsp.enel.ucalgary.ca/People/adilger/
    http://sourceforge.net/projects/ext2resize/

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