Implement event counters efficiently

Description

The current implementation of the event counters suffers conceptual efficiency problems: The implementation will issue a query for each of the individual counters to get the number of events matching that counter.

An efficient implementation would require an new backend query that returns all data as required by the individual counters directly in a single request.

Another problem the current implementation suffers is that the counter will poll all the time - even if not on the screen.

Assignee

Unassigned

Reporter

Sven Stauber