On 04/13/18 07:19, Chris Laprise wrote:
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.
Could be my imagination but in my ASRock Z170 UEFI (as another post on
qubes-user suggested)
*turning off the Intel speed stepping
seems to have fixed everything:
(I've no idea pros and cons of what this feature is; though I seem to
have a EFI install, I turned back some sub-settings in the UEFI EFI
choices to "legacy", no idea what those were/are either)
boot time, Fed-26 VM starts , qvm-run etc;
Issue I seem to have is qvm-shutdown <appvm> often completes and has
failed (maybe there is a timeout for shutdown as well as start-up ?); so
I'm having to qvm-kill most/many of the AppVMs ...... :)
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