Analysing boot time

[Aleksander Morgado]

> > on my embedded system, "systemd-analyze blame" says:
> >
> >           15.254s ModemManager.service
> >           10.562s NetworkManager.service
> >                   ...
> >
> > I.e. MM and NM are the two slowest services in terms of start time.
> > Is there anything I can do about it or try to find out, why they
> > take so much time?
>
> Which versions of both?  MM is likely the probing delay, and recent
> versions of MM have stricter rules on what gets probed and what
> doesn't, which could cut down its startup time.
>

But how does systemd measure the "boot time" of each? Is it only the
time needed by the daemon to be exposed in DBus? Or what?

-- 
Aleksander
https://aleksander.es