Ubuntu boot time on my workstation

Surprisingly, boot time of ubuntu10.04 is shorter than 10sec!
Below show you time line of boot processes

/var/log/bootchart/maniac-lucid-20110605-1.png

How to calculate boot time

1. # aptitude install bootchart
2. # aptitude install pybootchartgui
3. # reboot
4. display /var/log/bootchart/[machine name]-[ubuntu version]-[date]-[index].png 
5. # aptitude remove bootchart pybootchartgui

very fast :-)