Speed up your ext3 file system
The following tweaks assume that you are using an ext3 filesystem for your Ubuntu OS and they will offer a noticeable performance boost! However, there is also a bad side of them… if you don’t have an UPS and your system will power off accidentally or because of a power loss, YOU WILL LOSE IMPORTANT DATA!
Open a terminal (Applications -> Accessories -> Terminal) and type:
sudo gedit /etc/fstab
WARNING: The following is just an example! Do NOT copy the lines into your /etc/fstab file! Just REPLACE the options marked with underline with the ones marked with bold!
From this:
# /dev/sda1
UUID=19f70288-7340-40c0-82d1-ee4b218fee1d / ext3 relatime,errors=remount-ro 0 1
To this:
# /dev/sda1
UUID=19f70288-7340-40c0-82d1-ee4b218fee1d / ext3 noatime,nodiratime,errors=remount-ro,data=writeback 0 1
Save and close. Now type the following command in the terminal:
sudo gedit /boot/grub/menu.lst
And add the following option…
rootflags=data=writeback
…to the end of the following lines:
# defoptions=quiet splash vga=795 (by default, Ubuntu doesn’t have the “vga=795″ option on this line. It appears if you did the second tweak from the first step (see above)).
# altoptions=(recovery mode) single
Save and close, and paste the following command in the terminal:
sudo update-grub
Type now the following command in order to manually change your filesystem “on-the-fly” into writeback.
sudo tune2fs -o journal_data_writeback /dev/sdb2
ATTENTION: Please note that /dev/sdb2 is MY root (/) partition. If you have the root (/) partition in another place (for example /dev/sda1 or /dev/sda2) change it accordingly. Please look in /etc/fstab for this!
That’s all, now reboot your system and when you get back, you should feel an increased speed in video, image or audio usage.
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