== sanity test 421d: rmfid en masse ====================== 18:52:39 (1781218359)
 - open/close 770 (time 1781218373.37 total 10.02 last 76.84)
 - open/close 1693 (time 1781218383.39 total 20.03 last 92.18)
 - open/close 2515 (time 1781218393.39 total 30.04 last 82.18)
 - open/close 3364 (time 1781218403.40 total 40.04 last 84.83)
total: 4097 open/close in 48.07 seconds: 85.24 ops/second