== sanity test 421d: rmfid en masse ====================== 10:24:40 (1787149480)
 - open/close 808 (time 1787149495.53 total 10.01 last 80.72)
 - open/close 1610 (time 1787149505.54 total 20.02 last 80.11)
 - open/close 2297 (time 1787149515.56 total 30.04 last 68.56)
 - open/close 2950 (time 1787149525.57 total 40.05 last 65.26)
 - open/close 3802 (time 1787149535.58 total 50.06 last 85.09)
total: 4097 open/close in 53.45 seconds: 76.64 ops/second