Event handling monitoring features

[tkchouaki]

To be labelled with Performance and Code Sprint

Overall goal: assess the load of MATSim on CPU to identify areas of performance optimization with enhanced efficiency and less bottlenecks.

Steps:

• 1 - Have the EventsManager log the distribution of event handlers among the threads
• 2 - Step further: Have the EventsManager log the time it takes for each thread to finish processing the events queue to see if there are huge bottlenecks
• 3 - Even further: Have the EventsManager log the processing time of each event by each event handler to find out where the bottlenecks come from

Expected outcome: an answer to the question: are there bottlenecks in the event processing ?

Possible solutions, beyond the scope of the code sprint, depend on the precise answer:

• If it's a problem of more evenly distributing handlers, then we need better strategies for that.
• If it's one or two handlers causing huge bottleneck, then they should be re-written to allow parallelism and having the same handler instance in multiple threads

[mrieser]

we did some similar analysis last year. feel free to speak to me about it at the code sprint.