== sanity test 421d: rmfid en masse ====================== 04:46:25 (1789461985)
 - open/close 776 (time 1789462000.24 total 10.01 last 77.56)
 - open/close 1557 (time 1789462010.25 total 20.01 last 78.07)
 - open/close 2330 (time 1789462020.25 total 30.01 last 77.28)
 - open/close 3111 (time 1789462030.25 total 40.02 last 78.06)
 - open/close 3837 (time 1789462040.26 total 50.02 last 72.59)
total: 4097 open/close in 53.41 seconds: 76.71 ops/second