Location : /usr/lib/evolution/evolution-calendar-factory
this eats too much memory, after a bit of research i have found out some options both of them are not tested by me.
1st: this process gets stuck but if u run it manually it terminates after some initialization. but i dont know how to run it. https://bugs.launchpad.net/ubuntu/+source/indicator-datetime/+bug/1342123
2nd: change the name of the folder so its not found at start up. i want to do the first one but dont know how to do it.
taking the procedures from the link you posted, I hatched together following solution:
First disable showing events in the indicator-datetime with gsettings set com.canonical.indicator.datetime show-events false - as this is keeping evolution-calendar-factory up running.
Second create a autostart instance of evolution-calendar-factory so the hung process gets flushed, therefor nano ~/.config/autostart/evolution-calendar-factory.desktop and copy and paste the following into it:
[Desktop Entry]
Type=Application
Exec=bash -c 'sleep 1m; /usr/lib/evolution/evolution-calendar-factory'
Hidden=false
NoDisplay=true
X-GNOME-Autostart-enabled=true
Name=Workaround for evolution-calendar-factory
now we have to make the file executable with chmod a+x ~/.config/autostart/evolution-calendar-factory.desktop and on the next restart it should work.
P.S: the link you posted is for the phone and tablet version here is the link to the desktop bug: https://bugs.launchpad.net/ubuntu/+source/indicator-datetime/+bug/1589605
