== sanity test 421d: rmfid en masse ====================== 10:43:15 (1788619395)
 - open/close 834 (time 1788619410.05 total 10.02 last 83.27)
 - open/close 1647 (time 1788619420.06 total 20.02 last 81.25)
 - open/close 2472 (time 1788619430.08 total 30.04 last 82.33)
 - open/close 3293 (time 1788619440.08 total 40.05 last 82.07)
 - open/close 4085 (time 1788619450.09 total 50.05 last 79.15)
total: 4097 open/close in 50.22 seconds: 81.57 ops/second