Messages in this thread | | | Date | Fri, 9 Jul 1999 23:53:24 -0400 | From | Jim Nance <> | Subject | High reproducable fragmentation on ext2 |
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Hello all, I know that ext2 is supposed to be resistant to fragmentation, but I have found a way to fragment it pretty bad, and its not a contrived setup. When I build mozilla, I compile it in its own partition (ie. the source is on one partition and the .o, .a, and executables are on another) I start with that partition empty, and when I have finished building here is what I end up with:
Bessie> /sbin/e2fsck -f /dev/hda3 e2fsck 1.14, 9-Jan-1999 for EXT2 FS 0.5b, 95/08/09 Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information /dev/hda3: 5026/280576 files (24.1% non-contiguous), 333617/1118880 blocks
I assume the 24.1% is the fragmentation, and I assume this is high. Anyway, I think this is using the default block size. I believe I tried this with 4K blocks once and the problem went away.
Hopefully someone will find this interesting.
Thanks,
Jim
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