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    SubjectRe: [RFC] extents support for EXT3
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    El jue, 28-08-2003 a las 10:22, Alex Tomas escribió:

    > this is 2nd version of the patch. changes:
    > - error handling seems completed
    > - lots of cleanups and comments
    > - few minor bug fixed
    >
    > this version of the patch tries to solve couple
    > of corner cases:
    > - very long truncate
    > - rewrite
    >
    > it survived dbench, bonnie++ and fsx tests.

    It seems very good job.

    > take a look at numbers I've just got, please.
    >
    > before after
    > 5GB file, creation: 2m31.197s 2m21.933s
    > 5GB file, read: 2m25.439s 2m24.833s
    > 5GB file, rewrite: 2m48.434s 2m20.958s
    > 5GB file, removal: 0m8.760s 0m0.858s
    >
    > before after
    > dbench 16: 99.9868 MB/sec 179.243 MB/sec 16 procs
    > dbench 16: 89.9919 MB/sec 203.119 MB/sec 16 procs
    > dbench 16: 73.5519 MB/sec 185.815 MB/sec 16 procs
    > dbench 16: 94.6312 MB/sec 188.519 MB/sec 16 procs
    >
    >
    > to use extents you have to use 'extents' mount option

    This patch could be included with ext3 in 2.6.x?
    --
    Ramón Rey Vicente <ramon dot rey at hispalinux dot es>
    jabber ID <rreylinux at jabber dot org>
    ------------------------------------------------------------
    gpg public key ID 0xBEBD71D5 # http://pgp.escomposlinux.org/

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