== sanity test 421d: rmfid en masse ====================== 09:31:47 (1787837507)
 - open/close 735 (time 1787837522.14 total 10.01 last 73.43)
 - open/close 1561 (time 1787837532.16 total 20.03 last 82.43)
 - open/close 2503 (time 1787837542.19 total 30.05 last 93.99)
 - open/close 3323 (time 1787837552.20 total 40.06 last 81.89)
total: 4097 open/close in 49.49 seconds: 82.78 ops/second