what if native systemd service is slower than old sysvinit script?

[Vratislav Podzimek]

On Thu, 2011-09-15 at 17:06 +0000, "Jóhann B. Guðmundsson" wrote:
> On 09/15/2011 04:11 PM, Michal Schmidt wrote:
> > On 09/15/2011 05:54 PM, Ralf Corsepius wrote:
> >> On 09/15/2011 09:42 AM, "Jóhann B. Guðmundsson" wrote:
> >>> On 09/15/2011 05:25 AM, Ralf Corsepius wrote:
> >>>> Anyway, some more figures: On the same machine, bootup times when
> >>>> booting from a (slow) external (IDE) USB2 HD:
> >>>> - Fedora 15/i386: ca. 135 secs.
> >>>> - Ubuntu 11.04/i386: ca. 70 secs.
> >>>>
> >>>> [Here bootup time: Wirst watch measured time from "grub prompt" to
> >>>> "login screen"]
> >>>>
> >>>> It shows the effect of slow disks (60secs w/ internal HD vs. 2.15
> >>>> minutes w/ USB HD), but raises questions on why Ubuntu appears to be so
> >>>> much faster in this configuration.
> >>> Could you run systemd-analyze plot>    bootup.svg and post it somewhere
> >>> online
> >> See: http://corsepiu.fedorapeople.org/scratch/bootup-20110915.1.svg
> >    From the long delay before swap.target is reached it seems that your
> > defined swap partition never comes up and systemd times out waiting on it.
> 
> If you dont use any lvm, raid and encrypted devices, you can safely turn 
> off all fedora-* services
> ( Anaconda (F16) finally offers desktop users an easy way to opt out 
> from lvm without being partitioning experts )
> 
> #cd /lib/systemd/system
> #for i in fedora-*; do ln -s /dev/null /etc/systemd/system/$i;done
> 
> We throw in udev-settle since it gets pulled in by the storage setup
> #ln -s /dev/null /etc/systemd/system/udev-settle.service
> 
> If you want speed not eye candy you can disable plymouth
> 
> #cd /lib/systemd/system
> #for i in plymouth-*; do ln -s /dev/null /etc/systemd/system/$i;done
> 
> Then proceeding disabling all the service you dont use.
> 
> #for i in service1 service2 service3 etc... ; do systemctl disable $i ;done

Harald Hoyer made a nice "guide" on this topic:
http://www.harald-hoyer.de/personal/blog/fedora-15-boot-optimization

--
Vratislav Podzimek