I was using Ubuntu 8.10 with ext3 as the file system type. The system performance was somewhat not up to the mark so I decided to install Ubuntu 9.10 with ext4 as the fs type. The overall system performance improved significantly after the installation.
For example: The HUGE folders in thunderbird are now opening much faster than with Ubunti 8.10 + ext3.
Till now i'm impressed with ext4 :)
