Provides a user interface element that can be used to display a summary of the set of barrier statistics that have been seen by the event orderer.
Provides the number of complete barriers that have been processed. A barrier is complete if it has contributions from all event sources within the timeout.
Proivdes the number of barriers that havwe been processed that are missing contributions from at least one event source.
Provides the number of barriers that are heterogenous (complete or not). A heterogenous barrier is one that has fragments with more than one distinct barrier type.