== sanity test 421d: rmfid en masse ====================== 22:11:00 (1775873460)
 - open/close 743 (time 1775873474.78 total 10.01 last 74.25)
 - open/close 1511 (time 1775873484.78 total 20.01 last 76.77)
 - open/close 2280 (time 1775873494.79 total 30.03 last 76.79)
 - open/close 3050 (time 1775873504.80 total 40.03 last 76.99)
 - open/close 3849 (time 1775873514.80 total 50.03 last 79.89)
total: 4097 open/close in 53.36 seconds: 76.78 ops/second