Ubuntu: OPTIMIZING SSD PERFORMANCE

OPTIMIZING SSD PERFORMANCE:

Change the file system mount options on SSDs to “noatime”

Edit /etc/fstab (gksudo gedit /etc/fstab) and change the the option “relatime” to “noatime”. The line for the root partition should then be something like:

UUID=f0ae2c59-83d2-42e7-81c4-2e870b6b255d / ext2 noatime,errors=remount-ro 0 1

Use the “noop” I/O scheduler

Edit /boot/grub/menu.lst using your favorite editor, and add “elevator=noop” as an option. The default kernel configuration, found in the last part of the file should be something like:

title Ubuntu 8.04.1, kernel 2.6.24-19-generic
root (hd0,0)
kernel /boot/vmlinuz-2.6.24-19-generic root=UUID=f0ae2c59-83d2-42e7-81c4-2e870b6b255d ro quiet splash elevator=noop
initrd /boot/initrd.img-2.6.24-19-generic
quiet

In order for the changes to remain when updating the kernel, also in menu.lst, find the line

# defoptions=quiet splash

and add “elevator=noop” as an option:

# defoptions=elevator=noop quiet splash