Help with slow boot and shutdown of 16.04

anon83023755 · 29 April 2016 22:07

I've installed 16.04 on both a laptop and desktop (via USB and choosing the 'Erase disk and install...').

Both installs are taking ~50 seconds to reach the login and a further 14+ seconds to start.

Shutting down can take over 2 minutes. This doesn't happen all the time but is more frequent than not and more so on the laptop.

How can I resolve this?

pfeiffep · 29 April 2016 22:45

So in both cases Ubuntu MATE is the only OS installed on the boot disk - correct?
If so possibly GRUB menu is showing and waiting for input [10 seconds]

Please paste the output from inxi -ACDMNSG one of your machines [we'll work on 1 at a time].

In order to use this command enter a MATE terminal by either:

Accessing menu Applications > System Tools > MATE Terminal
or

pressing Ctrl+Alt+t keys simultaneously

use the code tag </> [see below] to mark the output

anon42388993 · 29 April 2016 23:00

Hi nony

I have a similar problem that seems to be an upstream problem with systemd.

https://bugs.freedesktop.org/show_bug.cgi?id=70593

So I must wait...or not...

For a work-a-round I changed the default start and stop timeout to 10 seconds (default is 90). Located in:

/etc/systemd/system.conf

These two lines now read:

DefaultTimeoutStartSec=10s
DefaultTimeoutStopSec=10s

This works for me until a fix comes out. A slower computer could require more time.

Spyder · 30 April 2016 00:10

I’ve seen this 90 sec “stop job is running…” previously in 15.10, but only occasionally, and now in the last 2 shut-downs in 16.04 it is here again. I did my fresh install just a few days ago! Doesn’t look like any solution is coming anytime soon. I also use U. Mate 14.04, and it never happens on that (no systemd!).

I didn’t know about the timeout time being user setable. I will use that. Thanks for this tip!

anon42388993 · 30 April 2016 00:26

Hi Spyder

I do not have the problem in 16.04, it only happens in 16.10.

And isn’t there an option in 15.10 grub boot menu to revert to upstart for one session?

Spyder · 30 April 2016 00:44

In 15.10, It didn't happen very often, and I didn't know when, so I pretty much ignored it. That 15.10 has now been replaced. We'll see if two of these in a row is unusual, or a portent of something worse. In any case, changing the delay will help.

pfeiffep · 30 April 2016 02:03

I just had the occasion to reboot my Dell laptop So instead I choose to shut down and do a fresh start from power up. Here are the times:
1-from clicking shut down to full power off > 7.68 sec
2-from power up to first grub screen >>>>>>> 16 sec
3-from power up to login prompt >>>>>>>>>> 53 sec
4-from power up to running >>>>>>>>>>>>> 72 sec

Processor 4x Intel® Core™ i3 CPU M 330 @ 2.13GHz
Memory 7839MB (1320MB used)
ATA TOSHIBA MK5056GS [500GB 7200 RPM 16MB Cache SATA 3.0]

Regards,
Pete

Dave_Barnes · 30 April 2016 03:02

That is slow! I tested a single core 64 bit boot in VirtualBox. It took 40 seconds from starting the virtual machine to up and running. You night want to look at your dmesg log to see if some device is hanging up the boot.

wolfman · 30 April 2016 04:38

Hi @anon83023755,

just keep updating, it should eventually solve the bug problem!:

lah7 · 30 April 2016 10:05

This command may help identify what services are taking the longest to initialize:

systemd-analyze blame

Here's a few lines from my output:

      7.234s NetworkManager-wait-online.service
      2.541s apt-daily.service
       532ms vboxdrv.service
       373ms dev-sda2.device
       354ms ModemManager.service
       329ms networking.service
       299ms accounts-daemon.service
       264ms timidity.service
       262ms php7.0-fpm.service
       230ms snapd.socket
       228ms systemd-logind.service
       227ms NetworkManager.service
       211ms lightdm.service
       209ms ssh.service

This is on an SSD, but that NetworkManager in this case is the culprit.

There was also a discussion over here on the long shut down times:

pfeiffep · 30 April 2016 14:14

I’m attempting to speed up my laptop boot times [posted above 72 seconds]. I used [quote=“lah7, post:10, topic:5622”]
systemd-analyze blame[/quote] and found the top 26 listed processes on my system totaled 2.05 minutes. So can I assume that the listed programs are concurrent?
My slowest 10

13.640s	networking.service
13.560s	grub-common.service
13.416s	apport.service
13.344s	speech-dispatcher.service
13.298s	preload.service
13.246s	irqbalance.service
13.245s	ondemand.service
10.096s	lightdm.service
8.681s	NetworkManager-wait-online.service
7.865s	dev-sda5.device

My system:

Processor	4x Intel(R) Core(TM) i3 CPU M 330 @ 2.13GHz
Memory	7839MB (1320MB used)
ATA TOSHIBA MK5056GS [500GB 7200 RPM 16MB Cache SATA 3.0]

Is speech-dispatcher required and for what? if not required how to bypass / eliminate?

How can grub-common.service be accelerated?

NetworkManager-wait-online.service - laptop is connected to in home wifi - any way to accelerated?

dev-sda5.device = / ext4 on an extended partition - suggestion to accelerate?

pfeiffep · 30 April 2016 19:53

I'm not quite sure to whom That Is Slow! refers. Additionally booting a guest OS in an already running host is probably not a good comparison.

I suggest comparing boot times we use a benchmark to 'handicap' stastics ... I found a benchmark utility in Software Boutique that's gui driven and provides an extremely comprehensive output.

Certainly the entire report will be TMI for posting, but type cpu and 1 benchmark would provide others a comparison. Here's the type of output hardinfo produces:
Computer
Processor4x Intel(R) Core(TM) i3 CPU M 330 @ 2.13GHz
Memory7838MB (1289MB used)
Operating SystemUbuntu 16.04 LTS
User Namepfeiffep (Pete)
Date/TimeSat 30 Apr 2016 02:42:50 PM EDT
FPU Raytracing
This Machine1066 MHz5.699
Intel(R) Celeron(R) M processor 1.50GHz(null)40.8816714
PowerPC 740/750 (280.00MHz)(null)161.312647

The Operating System identifies OS = Ubuntu, in my case really UM 16.04LTS

Regards,
Pete

anon83023755 · 1 May 2016 01:40

Thanks for all the replies.

I’m gonna go along with @wolfman’s suggestion of regular updating.

But hat tip, among others, to pfeiffep for the inxi -ACDMNSG command and lah7 for systemd-analyze blame.

@anon42388993 For future ref. how do you open/save files like /etc/systemd/system.conf ?

pfeiffep · 1 May 2016 02:49

I’ll answer …
to view the contents of the file
cat /etc/systemd/system.conf
or
less /etc/systemd/system.conf

Editing system files and making a mistake can render your computer un-bootable

issue these commands as an example of how to edit /etc/systemd/system.conf
sudo prefacing the command elevates the privilege [you must enter you password but no text will appear]

sudo cp /etc/systemd/system.conf /etc/systemd/system.conf.bu
above makes a safety copy
gksudo pluma /etc/systemd/system.conf
launches MATE’s text editor with elevated privilege

Remember to save th file after you’ve made the desired changes.

Since you had to ask how … I strongly suggest posting here for guidance prior to making changes. Also if you want to learn please do practice on some files - the command cp will make a copy to your home directory.

Enjoy you journey!

lah7 · 1 May 2016 09:27

Another tip, you can type in this command to get timings of each part of the boot sequence, which can pinpoint which stage takes the longest.

systemd-analyze

wyrias · 1 May 2016 09:51

i found out, that my installation of ubuntu mate 16.04 was also a bit slow. “sudo fdisk -l” showed me, that my linux partition was not correctly aligned on the ssd. could this be a reason, why its starting slowly?

wolfman · 1 May 2016 10:33

Post a screenshot of your partition layout and maybe someone can help you decide!.