Snaps Impact on Ubuntu?

[verndog]

Dude, if you're into your boot time, dump NM, jus' sayin'

What in its place?

[kyonides]

Dude, if you're into your boot time, dump NM, jus' sayin'

Sorry to ask you this, but whatcha mean with NM here?

[claydoh]

Sorry to ask you this, but whatcha mean with NM here?

Networkmanager

[verndog]

Networkmanager

Connman, maybe?

[Schwarzer Kater]

@ verndog & kyonides: I think oshunluvr referred to https://www.kubuntuforums.net/showth...etwork+manager

[claydoh]

Connman, maybe?

Netplan



people will howl, as this is a Canonical project of course, so it must be eee-ville

[oshunluvr]

Sorry, I was trying to have a moment with Clay. You can replace Network Manager with systemd-networkd. Your network startup time can go from 6 secs to 6 tenths of a second...

[claydoh]

Oh, me?
I am not overly interested in boot times, really. I just currently have a sacrificial 20.20 install on my new laptop. Seeing if it has anything in terms of hardware support I could use before neon moves to it as a base.

Mostly playing with touch screen kb and rotation support as a lark at the moment before I put Neon back on it. Was considering getting a bigger m.2, or replacing the sata ssd I added with a bigger one, but that ain't happening right now.

[selectiveduplicate]

Oh, it sure slows my boot time bu such a yuuuge amount.

Before any snaps, on 20.04
[CODE]
dohbuoy@dohbuoy-FLEX-15:~$ systemd-analyze
Startup finished in 1.622s (kernel) + 7.473s (userspace) = 9.096s
graphical.target reached after 7.166s in userspace

That's a very fast boot time, compared to mine, which is as of now, 21.728!

[mbohets]

Sorry, I was trying to have a moment with Clay. You can replace Network Manager with systemd-networkd. Your network startup time can go from 6 secs to 6 tenths of a second...

How can I do that safely ?
In synaptic, I see following networking items
Systemd related:
- networkd-dispatcher Dispatcher service for systemd-networkd connection status changes

NM related:
- network-manager network management framework (daemon and userspace tools)
- network-manager-pptp network management framework (PPTP plugin core)
- Plasma-nm Plasma5 networkmanager library.

Do I just remove all 3 nm items

Here is everything that takes more than 1s

systemd-analyze
Startup finished in 5.808s (kernel) + 14.592s (userspace) = 20.400s
graphical.target reached after 11.511s in userspace
marc@marc-samsung:~$ systemd-analyze blame
6.503s NetworkManager-wait-online.service
2.177s dev-sda5.device
2.101s apt-daily.service
1.781s snapd.service
1.661s apt-daily-upgrade.service

Also mounting the root partition dev-sda5 seems to take up a lot of time.

[claydoh]

That's a very fast boot time, compared to mine, which is as of now, 21.728!

Well I do have an m.2 ssd and a very current i5 laptop.

My PC takes 30 secs but that's mostly because it's bios s the time sapper despite having a faster ssd as well.

The command

systemd-analyze blame

will show some useful info on top of the normal systemd-analyze command.

Sent from my LM-V600 using Tapatalk

[jglen490]

Boot times are - well, times. And at times fun to complain/brag about. But, unless you are sitting in front of the monitor, in your slave-to-the-machine position anxiously awaiting the arrival of the so long overdue GUI login, it don't mean a thing

[GreyGeek]

That's a very fast boot time, compared to mine, which is as of now, 21.728!

$ systemd-analyze
Startup finished in 2.706s (kernel) + 3.162s (userspace) = 5.868s
graphical.target reached after 2.528s in userspace

IF I wanted to move the activation of the man-db.service to a later time, after my desktop appears, I could probably shave a half second off of that. I did that with 18.04 and had a time of 5.1 seconds. I used to get around 1 min - 30 sections. Fooling with the service scripts to rearrange the time of activation for various services got me down to around 30 seconds. However, the LARGEST drop in boot up time came when I replaced my spinners with SSDs.

However, all these times ignore the time the POST takes, unless the user has turned off the POST in the BIOS. The lowest time I've seen is 2.1 seconds, by Oshunluver, IIRC.

[jglen490]

I did the apt-daily.service thing a while back. It saved a little time, but nothing to have a parade about. And besides, some of those services fixes simply result in delayed execution. Nothing actually saved. Now the network management fix may be worth something, but if the focus is just the boot time drag race - it's DQ'd.

[selectiveduplicate]

Well... this sucks... I didn't face this much boot time while I's using Ubuntu MATE...

9.134s fwupd-refresh.service                                                                    
8.890s snapd.service                                                                            
8.566s networkd-dispatcher.service                                                              
6.623s udisks2.service                                                                          
5.964s dev-sda6.device                                                                          
5.944s accounts-daemon.service                                                                  
4.952s NetworkManager-wait-online.service                                                       
4.138s polkit.service                                                                           
3.807s ModemManager.service                                                                     
3.635s NetworkManager.service                                                                   
3.496s avahi-daemon.service                                                                     
3.250s gpu-manager.service                                                                      
3.077s thermald.service                                                                         
3.073s wpa_supplicant.service                                                                   
3.071s systemd-logind.service                                                                   
2.515s grub-initrd-fallback.service                                                             
2.400s grub-common.service                                                                      
2.395s ufw.service                                                                              
2.088s systemd-journal-flush.service                                                            
1.997s dev-loop1.device                                                                         
1.974s dev-loop0.device                                                                         
1.814s apport.service                                                                           
1.747s systemd-resolved.service                                                                 
1.504s e2scrub_reap.service                                                                     
1.388s rsyslog.service                                                                          
1.225s systemd-udevd.service