Tim Ruehsen wrote:
You don't need to. You only need to defragment your disk if your
operating system is incapable of keeping the fragmentation under
control, and Linux does not suffer from this problem.
Many people say so, but it is not true.
Ext2 takes some precautions to reduce fragmentation a bit (in comparison with
(V)FAT), but ext2 can't prevent it. And it is not a feature of 'Linux' it is
a feature of the filesystem.
Jiann-Ming Su posted a link, which talks about two possibilities to defragment
your discs: either use defrag (but make a backup before!) or just make a
backup, clean your partitions and restore the backup.
I did the last thing (after using my system for ~2 years for ~10 hours a day,
making updates every day) and my system booted about 30% faster. Now, after a
year or so, it seems to be time to do it again (booting became slower and
slower).
Regards, Tim
Tim,
I am a bit startled about the increase in 'boot time performance'
once you defragmented. Could it be that you have your drives filled up
to a very high value (say more than 95%)? If you dont mind could you
post your df -h output? I have a feeling that defragmenting an ext2/ext3
partition does not increase performance if the partitions are not
heavily filled up. But I could be wrong.
raju
--
Kamaraju S Kusumanchi
Graduate Student, MAE
Cornell University
http://www.people.cornell.edu/pages/kk288/
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