Try comparing the deleting of a large file on ext3 and ext4. On ext3 it can take 20 minutes to delete a file that in ext4 is deleted in a few seconds. That is

Try comparing the deleting of a large file on ext3 and ext4. On ext3 it can take 20 minutes to delete a file that in ext4 is deleted in a few seconds. That is including a followup "sync". It is an obsolete filesystem.