== sanity test 421d: rmfid en masse ====================== 22:15:23 (1789524923)
 - open/close 1637 (time 1789524935.21 total 10.00 last 163.66)
 - open/close 2952 (time 1789524945.21 total 20.00 last 131.49)
total: 4097 open/close in 27.99 seconds: 146.37 ops/second