Trigger: Performance tests

[MRiganSUSX]

Ideas for trigger performance measuring and monitoring:

• Write an application to track CPU usage and RAM usage per trigger module and makes plot of that. This is to attempt a performance test without touching the trigger DUNE-DAQ while doing so.
• Run the above application on a single APA with one link and one Maker and CRT. Then see how it scales (multiple links, multiple makers, multiple APAs)
• Is the latency affected by the trigger rate?
• Latency plots on Grafana: How long it takes for a TC to propagate through the system, calculated this way: TC received vs TC sent
• Latency plots on Grafana: Comparing data times to wall-clock time
• Standardise all latency measurements for all trigger modules from start to finish (buffer, zipper...), Grafana compatible