The program is called Preload and I've found a tutorial in how to install it on Debian based systems:
http://techthrob.com/2009/03/02/drastically-speed-up-your-linux-system-with-preload/
The program is called Preload and I've found a tutorial in how to install it on Debian based systems:
http://techthrob.com/2009/03/02/drastically-speed-up-your-linux-system-with-preload/