== sanity test 421d: rmfid en masse ====================== 21:30:24 (1789608624)
 - open/close 772 (time 1789608639.11 total 10.01 last 77.11)
 - open/close 1600 (time 1789608649.12 total 20.02 last 82.75)
 - open/close 2197 (time 1789608659.13 total 30.03 last 59.65)
 - open/close 2956 (time 1789608669.15 total 40.05 last 75.71)
 - open/close 3829 (time 1789608679.16 total 50.06 last 87.26)
total: 4097 open/close in 52.89 seconds: 77.46 ops/second