I've done some experimenting to get my Debian VMs to boot faster. So far
I've reduced the start time significantly by disabling these services in
the template:
apt-daily.service
apt-daily.timer
apt-daily-upgrade.service
apt-daily-upgrade.timer
pppd-dns
lvm2-monitor
Disabling the last two may have consequences, e.g. if you use VMs to
access LVM storage. But that lvm2-monitor does consume a whopping 4+
seconds according to systemd-analyze. YMMV.
And note that my criteria for picking these is just a cursory glance at
unit start times.
Ultimately, a good solution may be getting some of these units to start
10-20 seconds later. I think that makes sense in the case of
lvm2-monitor. Some other time-consuming services like qubes-update-check
already start later and don't seem to impact VM start times and
responsiveness.
FWIW, Ubuntu has announced that boot times have worsened a lot and
they'll make an effort to reduce them (again). Not sure to what extent
that reflects on Debian.
--
Chris Laprise, [email protected]
https://github.com/tasket
https://twitter.com/ttaskett
PGP: BEE2 20C5 356E 764A 73EB 4AB3 1DC4 D106 F07F 1886
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