== sanity test 421d: rmfid en masse ====================== 19:16:49 (1786835809)
 - open/close 1033 (time 1786835822.24 total 10.01 last 103.23)
 - open/close 2108 (time 1786835832.24 total 20.01 last 107.45)
 - open/close 3195 (time 1786835842.25 total 30.02 last 108.63)
total: 4097 open/close in 38.35 seconds: 106.83 ops/second