2009/6/11 Cá Vàng <clarious@gmail.com>:
Hello everyone!
As linux 2.6.30 is out, I decided to migrate my data partition to ext4. Hoping for better performance and less fragmentation.
But, after format it with "mkfs.ext4 - largefile /dev/..." and copy all the file back to the partition, I got whooping number of 30% non-contiguous files! Then I reformat it with reserved block set to 10% (-m 10), still got the same fragment rate :-(
Some updates, I tested copy one big file (about 3.6 GBs) to the new partition, and this is what I get: (ext3 mount as ext3)image.iso: 31 extents found, perfection would be 29 extents (ext3 mount as ext4)image.iso: 960 extents found, perfection would be 29 extents -- My job: Writing buggy softwares to make the world a worse place for humanity ( ﾟ∀ﾟ)ｱﾊﾊ八八ﾉヽﾉヽﾉヽﾉ ＼ / ＼/ ＼