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2011 Jun 27
3
unofficial ext3 and ext4 compare
I have something like 300G I routinely backup.
This includes some large 12Gig images and other files.
I had been using ext3 on an external USB disk for part of the process.
Under ext3 doing "rsync -a /home /mnt/external_back/backup.jun.27.2011"
it took 200 minutes.
I took the same computer, same external HD and reformatted it for ext4
(mkfs.ext4 /dev/sdd1).
I then started the same rsync as above. The time was reduced to 170 minutes.
This is on Centos 5.6 x86_64.
I did notice the [ext4-dio-unwrit] process that...