Ubuntu
e2fsprogs package

  1. Bug #321528
  2. Comment #23

Comment 23 for bug 321528

Revision history for this message
Michael Lustfield (michaellustfield) wrote : Re: ext4 defrag / defragment tool in Jaunty - include

I've recently been looking into this a little more. The kernel support is there. The development is there. It sounds like it's still planned to be available in 10.04.

I did some testing and reading. A migration to a fresh Ext4 partition seems to yield better performance than the e4defrag. Of course ymmv.

If you want defrag for performance, it may be a good idea to check and see if your file system that would benefit from this.
sudo e2fsck -nfv /dev/sdax
The worst I had was 1.1% file fragmentation and 0.6% on the same 100MB partition. Considering this is where I drop all my custom kernels and do a lot of altering here, that's pretty darned low. I wouldn't even consider wasting my time with a defrag of ext4 unless I'm running over 3.0% which is still pretty dang low.

I am excited to see how this and the other features progress. Ext4 has been awesome when it comes to my servers.