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    SubjectRe: FileSystem XFS vs RiserFS vs ext3

    Bernd Eckenfels wrote:

    >NFS is a bit tricky. Reiser used to be broken on it, and at least from large
    >XFS NFS Servers I know that they tend to be unstable, still.
    >
    >For the Database Servers, I am not sure how well they operate with
    >journaling filesystems. I think Linux Journal had an article on performance
    >on that.
    >
    >Reiser might be your bet, depending on the usage pattern of the filename
    >space, with Ext3 catching up. Personally I love the XFS features for
    >resizing in connection with LVMs, but i guess you can have that with Ext3
    >and Reiser, too.
    >
    >Greetings
    >Bernd
    >
    >
    Thanks for all the input. Here is some info after I get from my setting.
    Hardware config: Tyan 2466 Duel MP2200+ 512MB, SX6000 4 ide 120GB
    7200RPM RAID5

    -------------------------------------------------------------------------
    StPeter:/mnt/part1# sfdisk -l /dev/sda

    Disk /dev/sda: 351905 cylinders, 64 heads, 32 sectors/track
    Warning: extended partition does not start at a cylinder boundary.
    DOS and Linux will interpret the contents differently.
    Warning: The first partition looks like it was made
    for C/H/S=*/255/63 (instead of 351905/64/32).
    For this listing I'll assume that geometry.
    Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0

    Device Boot Start End #cyls #blocks Id System
    /dev/sda1 0+ 44860 44861- 360345951 5 Extended
    /dev/sda2 0 - 0 0 0 Empty
    /dev/sda3 0 - 0 0 0 Empty
    /dev/sda4 0 - 0 0 0 Empty
    /dev/sda5 0+ 3646 3647- 29294464+ 83 Linux
    /dev/sda6 3647+ 7293 3647- 29294496 83 Linux
    /dev/sda7 7294+ 10940 3647- 29294496 83 Linux
    /dev/sda8 10941+ 14587 3647- 29294496 83 Linux
    /dev/sda9 14588+ 18234 3647- 29294496 83 Linux
    /dev/sda10 18235+ 21881 3647- 29294496 83 Linux
    /dev/sda11 21882+ 25528 3647- 29294496 83 Linux
    /dev/sda12 25529+ 29175 3647- 29294496 83 Linux
    /dev/sda13 29176+ 32822 3647- 29294496 83 Linux
    /dev/sda14 32823+ 36469 3647- 29294496 83 Linux
    /dev/sda15 36470+ 44860 8391- 67400676 83 Linux

    ------------------------------------------------------------------
    StPeter:/mnt/part1# hdparm -t /dev/sda

    /dev/sda:
    Timing buffered disk reads: 64 MB in 1.60 seconds = 40.00 MB/sec
    StPeter:/mnt/part1# hdparm -T /dev/sda

    /dev/sda:
    Timing buffer-cache reads: 128 MB in 0.47 seconds =272.34 MB/sec
    ------------------------------------------------------------------
    StPeter:/mnt/part1# mount
    /dev/sda5 on /mnt/part1 type xfs (rw,noexec,nosuid,nodev)
    /dev/sda6 on /mnt/part2 type reiserfs (rw,noexec,nosuid,nodev)
    /dev/sda7 on /mnt/part3 type ext3 (rw,noexec,nosuid,nodev)

    StPeter:/mnt/part1# df -h
    Filesystem Size Used Avail Use% Mounted on
    /dev/sda5 28G 4.8M 27G 1% /mnt/part1
    /dev/sda6 28G 33M 27G 1% /mnt/part2
    /dev/sda7 27G 33M 26G 1% /mnt/part3

    StPeter:/mnt/part1# time cp -rf /usr/src/kernel-source-2.4.20 ./

    real 1m3.501s
    user 0m0.140s
    sys 0m2.680s

    StPeter:/mnt/part2# time cp -rf /usr/src/kernel-source-2.4.20 ./

    real 0m3.696s *************** so fast...
    user 0m0.110s
    sys 0m3.570s

    StPeter:/mnt/part3# time cp -rf /usr/src/kernel-source-2.4.20 ./

    real 1m29.697s
    user 0m0.090s
    sys 0m2.490s

    *ext3 used the most space

    StPeter:/mnt/part3# df -h
    Filesystem Size Used Avail Use% Mounted on
    /dev/sda5 28G 180M 27G 1% /mnt/part1
    /dev/sda6 28G 191M 27G 1% /mnt/part2
    /dev/sda7 27G 211M 25G 1% /mnt/part3
    --------------------------------------------------------
    StPeter:/mnt/part1# time rm -rf kernel-source-2.4.20/

    real 0m23.351s
    user 0m0.050s
    sys 0m1.250s

    StPeter:/mnt/part2# time rm -rf kernel-source-2.4.20/

    real 0m1.297s
    user 0m0.010s
    sys 0m0.890s

    StPeter:/mnt/part3# time rm -rf kernel-source-2.4.20/

    real 0m1.062s
    user 0m0.000s
    sys 0m0.690s

    -------------------------------------------------------

    Any suggestion for other test?
    Thanks
    Alex






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