== sanity test 421d: rmfid en masse ====================== 23:36:10 (1789270570)
 - open/close 851 (time 1789270583.98 total 10.00 last 85.08)
 - open/close 1865 (time 1789270593.99 total 20.01 last 101.29)
 - open/close 2797 (time 1789270604.00 total 30.02 last 93.13)
 - open/close 3664 (time 1789270614.00 total 40.03 last 86.66)
total: 4097 open/close in 44.73 seconds: 91.59 ops/second