Graphical Ext2/Ext3 File Layout in Linux

MirJafar Ali mirjafarali at
Thu Feb 18 05:09:18 UTC 2010


I am looking for something more at the superblock, inode levels. I want to
visualize superblock's bitmap for fragmentation, aging of each inode,
hot spots and cold spots of inodes.

Can someone tell me what is the best way to display huge bitmap ( that will
come from superblock ) on computers, something that will give insights
into the file system layout and not just colorful display ?



On Wed, Feb 17, 2010 at 10:20 PM, ANDY <sirald66 at> wrote:

> On Wed, Feb 17, 2010 at 8:52 PM, Christopher Chan <
> christopher.chan at>
>> Something like the map of blocks you get when you do a defrag on Windows?
> Yes.  So for example, if you hover/click a block that is part of a
> file/structure, the rest of it highlights; you could also have summary
> information about the file.  So this would be better described as a
> 'physical file placement map'.
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