== sanity test 421d: rmfid en masse ====================== 22:52:29 (1767325949)
 - open/close 2200 (time 1767325960.88 total 10.00 last 219.95)
 - open/close 3834 (time 1767325970.88 total 20.00 last 163.39)
total: 4097 open/close in 21.51 seconds: 190.48 ops/second