The results can be found in:
#109614

Facts:

• latency metrics include waiting time in APF
• so basically, long waiting time (saturated PLs) would result in exactly this

Hypothesis:

• some PLs are saturated and thus latency metrics are exceeding the threshold

But we need to confirm this and figure out how to improve it.

[The next step would be to see how we can speed up this test even further and see what will happen later, but I think we're currently mostly blocked on scheduler throughput.]

/assign @MikeSpreitzer
/cc @tkashem