October 24, 2012, 3:42 PM — Here's how you can use TMPFS to lessen disk writing and reading. This will help speed up Ubuntu 12.10 since it will use RAM instead of the hard disk.
1. Open a terminal window.
2. Type in the following command to edit the /etc/fstab file, then hit Enter.
sudo gedit /etc/fstab
3. Place these two lines at the end of the file:
# Move /tmp to RAM
tmpfs /tmp tmpfs defaults,noexec,nosuid 0 0
4. Save your edited file.
5. Reboot your system.
For more, see the original article at the link below.