== sanity test 421d: rmfid en masse ====================== 08:08:03 (1789128483)
 - open/close 921 (time 1789128498.66 total 10.01 last 92.02)
 - open/close 1796 (time 1789128508.66 total 20.01 last 87.46)
 - open/close 2676 (time 1789128518.66 total 30.02 last 87.98)
 - open/close 3395 (time 1789128528.67 total 40.02 last 71.85)
 - open/close 4024 (time 1789128538.68 total 50.03 last 62.83)
total: 4097 open/close in 51.41 seconds: 79.69 ops/second