== sanity test 421d: rmfid en masse ====================== 00:20:25 (1789446025)
 - open/close 749 (time 1789446039.85 total 10.02 last 74.73)
 - open/close 1451 (time 1789446049.87 total 20.05 last 70.02)
 - open/close 2231 (time 1789446059.89 total 30.06 last 77.91)
 - open/close 2993 (time 1789446069.89 total 40.06 last 76.19)
 - open/close 3680 (time 1789446079.89 total 50.07 last 68.66)
total: 4097 open/close in 56.28 seconds: 72.80 ops/second