If you are one of that person who enjoy tuning boot process of ubuntu linux then this is for you. Bootchart is a small application used to generate detailed graphs of linux boot process. This timelined graph allows you to accurately see the CPU and IO loads on the system during kernel booting.
Using this utility you can identify boot services that are blocking other services or the services that are unnecessary.
Install bootchart by executing following command.
sudo apt-get -y install bootchart
Now reboot your system and check for a svg file in the folder /var/log/bootchart.
Visit Bootchart home.