This program allows you to create a special partiton form your RAM memory !
GENERAL WARRNING!!!
After reboot the data form this partition will be lost!!
For increasig RAMDISK size edit /boot/grub/grub.cfg adding ramdisk_size=1000000(this is 1GB) at the end of line containing kernel /vmlinuz-3.5.0.27 (whatever kernel you have).
Youtube tutorial:
http://www.youtube.com/watch?v=Bsdrg4mFh7s&feature=youtu.be
http://packages.ubuntu.com/quantal/gir1.2-launchpad-integration-3.0
http...