Bootchart is a tool used to analyze your system performance in linux boot process. It process all the required information accumulated during the boot process (CPU usage and disk usage) which will then display as PNG, SVG, EPS encoded chart.
First of all you will have to Install Bootchart on Ubuntu.
Installation
To active or install Bootchart you will have to open command console
Type in this code:
sudo aptitude install bootchart
Reboot your PC
When you restart your computer Bootchart will create a graphical illustration in .png format.
Disabling and Enabling Bootchart
To disable Bootchart just use these code:
cd /etc/init.d
sudo update-rc.d -f stop-bootchart remove
Removing any system startup links for /etc/init.d/stop-bootchart ...
/etc/rc2.d/S99stop-bootchart
/etc/rc3.d/S99stop-bootchart
/etc/rc4.d/S99stop-bootchart
/etc/rc5.d/S99stop-bootchart
And to re-enable just use these codes:
cd /etc/init.d
sudo update-rc.d stop-bootchart start 99 2 3 4 5 .
Adding system startup for /etc/init.d/stop-bootchart ...
/etc/rc2.d/S99stop-bootchart -> ../init.d/stop-bootchart
/etc/rc3.d/S99stop-bootchart -> ../init.d/stop-bootchart
/etc/rc4.d/S99stop-bootchart -> ../init.d/stop-bootchart
/etc/rc5.d/S99stop-bootchart -> ../init.d/stop-bootchart
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