OO instructions at there website on the main page OpenOffice.org - The Free and Open Productivity Suite
3.0 on ubuntu 8.10 How to Install OpenOffice.org 3.0 on Ubuntu 8.10 - Step by step tutorial with screenshots! - Softpedia
observe running processes ubuntu Hacking Ubuntu to Improve Performance - Viewing Running Processes - OS, Software & Networking by ExtremeTech
All of this was done using keywords from your post in google.