Assuming someone is working on unity there might be 2 applets which are crucial to install

1. CPU frequency scaling applet in unity

Indicator applet for displaying and changing CPU frequency on-the-fly. It provides the same functionality as the Gnome CPU frequency applet, but doesn’t require Gnome panel and works under Unity.

Install CPU frequency applet on ubuntu 11.04(Natty)

Open the terminal and run the following commands

# sudo add-apt-repository ppa:artfwo/ppa
# sudo apt-get update; sudo apt-get install indicator-cpufreq -y

Create unity launcher

You can create unity launcher using the following procedure

Right click on desktop, select “create launcher” name it, icon it, and put “indicator-cpufreq” as the command. then drag it to the unity launcher.

 

2. Indicator-sysmonitor – Monitor your CPU and memory usage

Unity users can easily monitor CPU and Memory usage by using indicator-sysmonitor application.This is very simple and helpful application

Install indicator-sysmonitor on ubuntu

open the terminal and run the following commands

# sudo add-apt-repository ppa:alexeftimie/ppa
# sudo apt-get update; sudo apt-get install indicator-sysmonitor -y

Create unity launcher

You can create unity launcher using the following procedure

Right click on desktop, select “create launcher” name it, icon it, and put “indicator-sysmonitor” as the command. then drag it to the unity launcher.