linux-ext4 - [Bug 13930] New: non-contiguous files (64.9%) on a ext4 fs

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Date:	Fri, 7 Aug 2009 09:58:47 GMT
From:	bugzilla-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 13930] New: non-contiguous files (64.9%) on a ext4 fs

http://bugzilla.kernel.org/show_bug.cgi?id=13930

           Summary: non-contiguous files (64.9%) on a ext4 fs
           Product: File System
           Version: 2.5
    Kernel Version: Linux version 2.6.31-rc5 (logik@...ikPC) (gcc version
                    4.3.3 (Debian 4.3.3-15) ) #1 SMP PREEMPT Sat Aug 1
                    19:52:55 CEST 2009
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: ext4
        AssignedTo: fs_ext4@...nel-bugs.osdl.org
        ReportedBy: zelogik+bugzilla@...il.com
        Regression: No


Normally ext4 is a perfect non-contifuous FS ... so why when I make an:

sudo e2fsck -v -f -p /dev/sdc1

   15953 inodes used (0.03%)
   10361 non-contiguous files (64.9%)
       7 non-contiguous directories (0.0%)
         nombre d'i-noeuds avec des blocs ind/dind/tind : 0/0/0
         Histogramme des profondeurs d'extents : 14555/1388
234324740 blocks used (95.96%)
       0 bad blocks
       1 large file

   14728 regular files
    1216 directories
       0 character device files
       0 block device files
       0 fifos
       0 links
       0 symbolic links (0 fast symbolic links)
       0 sockets
--------
   15944 files



We have 64.9% of non-contiguous files on a ext4 fs, 

Files have been transfered from a cifs mount (useful ?) and files size are
[2-10]|[600-800]MB


Some references:
Lacie 1To on usb with usb-Hitachi_HDS721010KLA330

Want more info ... just ask because I don't know what send now for help you :)

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