Now, get ready for ext4 file system tunning for speed.
1) Change your filesystem to load in writeback mode (default is journal).
tune2fs -o journal_data_writeback /dev/sda1 (change sda1 with your hard drive partition)
2) Edit fstab to change ext4 mounting options.
(change nano with the text editor of your choice)
Change relatime (or whatever option is there) with: