TAP::Harness summary

I was ignorant of what the ongoing summary meant when running tests via TAP::Harness. Thanks to a colleague for explaining it to me:

===(    3626;332  1810/1810  0/? )======================================

First pair: total tests run; elapse time in seconds

Second pair: first test, 1810 of 1810 run

Third pair: second test, 0 tests run, no plan

I’m running TAP::Harness with two jobs so two tests in parallel, hence two \d+/\d+ reports.