r.sander, you were right in everything
The slowness came not from the vbox_guest
section, but the one following it - timesyncd
.
My case was also Debian 10 with ntp
package installed. I noticed Debian 10 does not disable the systemd-timesyncd.service
, but rather lets its start condition fail with ConditionFileIsExecutable=!/usr/sbin/ntpd was not met
Since I don’t need the “ntp server” part of ntpd, my solution was to uninstall ntp
and let systemd-timesyncd.service
do the clock synchronization.
Thanks for your help.