== sanity test 421d: rmfid en masse ====================== 06:21:59 (1789294919)
 - open/close 913 (time 1789294935.04 total 10.00 last 91.25)
 - open/close 1751 (time 1789294945.04 total 20.01 last 83.79)
 - open/close 2607 (time 1789294955.05 total 30.01 last 85.53)
 - open/close 3493 (time 1789294965.05 total 40.02 last 88.57)
total: 4097 open/close in 47.24 seconds: 86.73 ops/second