A curious point after this mornings 5.15.0-101-generic kernel update:
I noticed what seemed to be a faster boot. It could be my imagination or some silly thing like that.
But, then I wondered, how would I even know? Of course, for the answer to anything, search the WWW.
info found on vitux.com (link at the bottom).
To get the current "boot time", which I believe would be from loading the kernel to login prompt, open a terminal and try this:
$ systemd-analyze
You can do the obvious --help and so on, but what you really want to do is:
$ systemd-analyze plot > ~/Pictures/systemd.svg
Then you can view the saved graphical explanation of who, did what, with which and for how long, using the standard Xviewer or graphical viewer of your choosing. You should end up with a nice graph that looks something like this:
Remember to zoom in. At 8507 x 8470, mine is quite readable, once you zoom in enough.
Even my abysmal times revealed that it was a faster boot.
Leaving me to wonder, what the heck just happened?
Anyway, have fun and I hope someone finds this informative, helpful or just a little fun.
*
You can see the entire article about this feature, here:
https://vitux.com/how-long-does-your-li ... e-to-boot/
September 23, 2020 by Karim Buzdar
In the full article, it explains the various options, how each is helpful and suggestions for what to do if you are looking to speed things up.
Standard disclaimer: If you do make any changes, neither the author of the original article or I are responsible if you blow it up.
Which is why I only presented the two simplest usages.
peace
Mark
p.s. Since I don't recall ever installing systemd-analyze, I assume it is part of the most Linux distros.