duminică, 1 aprilie 2012

Fedora online defragmenter for ext4 filesystem

The tool is e4defrag.

The man page tell us: reduces fragmentation of extent based file. The file targeted by e4defrag is created on ext4 filesystem made with "-O extent" option (see mke2fs(8)). The targeted file gets more contiguous blocks and improves the file access speed.

Let's try this tool.

You can try under root account this:

# e4defrag -test -cv /home/your_user/

The final result on my account is :

Total/best extents 170276/165520 Fragmentation ratio 0.03% Fragmentation score 0.24 [0-30 no problem: 31-55 a little bit fragmented: 55- needs defrag]

Also you have to run e4defrag with the -test parameter for now, since it isn't a fully tested version.

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