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Here are some tasks awaiting attention:
- Expand : * Explain how the efficiency of page cache/buffer cache combined with readahead decreases with fragmentation
- In proactive techniques, add keeping related files in the same cylinder groups to improve locality of reference, as in Unix File System
- XFS allocation groups, if they are relevant (see "Scalability in the XFS File System" source)
- More information about retroactive techniques. Perhaps mention algorithms used in defragmentation tools?
- http://lwn.net/Articles/81357/
- HFS Plus from the "Mac OS X Internals: A Systems Approach"
- Sparse files causing fragmentation
- User space fragmentation avoidance (ref. sparse files; allocating zero-filled files
[1])
- Explain what might be considered a self-defragmenting filesystem (which redirects here)
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