Monitoring Ubuntu Start up

A simple tip to have your system ,to estimate the time taken by the various components needed at the startup and to optimize them.

When viewing Grub, press ESC to display the menu:



Move to the first line (as above) and press E to edit the line:


Go to the end of the line, and add the word "profile".


Then press ENTER to validate, then press B to start the system.

Note that:

The startup will be slower because the system scans the startup programs, but following the start should be a little faster.

You do not have to remove the word "profile" of boot options: It is automatically deleted.

This procedure is use only to make large-scale upgrades like updating the kernel or services (ssh, apache)