Developer interview: Eric Sandeen on ext4 implementation

Some years back, there was a post to lkml from someone doing filesystem reliability testing.
This was before reiserfs had ordered writes.  And the fellow was asking for help to determine
what was wrong with his methodology.  You see, in his tests, in which power was removed at
random times, over and over, reiserfs, jfs, and xfs all performed about the same.  But ext3
never showed to have dropped anything.  He was quite certain that he must be doing something
wrong.  Turned out it was the ordered writes that made the difference.  I've tried to locate
that thread a few times, over the years, but never been able to find it again.

I've also noted more complaints from desktop users about it eating their data than for other
filesystems. 

I believe that the reason that the kernel guys are not so hot on XFS is that it is:

1. Big and complex

2. Has an ugly glue layer to make it interface to the Linux VFS.

And face it, as well designed ibn the 90s as it might have been... it was still designed in
the 90s.

I'm quite anxious to see how btrfs shapes up!