== sanity test 421d: rmfid en masse ====================== 19:41:30 (1786837290)
 - open/close 1923 (time 1786837302.67 total 10.00 last 192.28)
 - open/close 3922 (time 1786837312.67 total 20.01 last 199.82)
total: 4097 open/close in 20.82 seconds: 196.77 ops/second