/usr/bin/cl-update can seem to be inactive for long periods of time. It is because it is downloading packages, which are stored within /var/calculate/packages/ .
We are still looking for a way to: 1) monitor the progress of such downloads. 2) download the packages beforehand, via a cron job, so that by the time cl-update is run, all the packages are ready).
https://linux.overshoot.tv/wiki/calculate_linux
