Small update:

> Bill Filler (bfiller) wrote on 2014-09-23:
> I'm assuming evolution-calendar-factory gets loaded by indicator-datetime 
> initially such that the indicator can show calendar events.

As a troubleshooting step, I tried disabling the Upstart entry for
indicator-datetime-service so that it doesn't get started and respawned
automatically, and launched it manually using the terminal. Sure enough,
evolution-calendar-factory starts only after indicator-datetime-service
starts, and stops a few seconds after the indicator-datetime-service
process is terminated (by Ctrl-C during my testing).

So what actually happens in the workaround I posted earlier was that
invoking another instance of evolution-calendar-factory manually will
sever the link that the date/time indicator has to the calendar service.
The new, manually invoked evolution-calendar-factory instance that
replaced the old one will then terminate itself after a few seconds.

It should be fine for people like me who never use the calendar, but
people who do use the calendar should watch out.

There are a few questions I can think of at this point:
1. Is it by design that indicator-datetime-service needs continuous access to 
the org.gnome.evolution.dataserver.Calendar4 D-Bus service?
2. Does it really need to maintain a connection to that service even if the 
user doesn't use the calendar feature at all? (this needs to be asked because 
the current implementation of evolution-calendar-factory occupies an 
above-average amount of memory, even for empty calendars)
3. If not, what could be preventing it from disconnecting from the service once 
it's done with its business?

I'll try to see what else I can uncover.

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https://bugs.launchpad.net/bugs/1342123

Title:
  evolution-calendar-factory always running with high memory usage

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