== sanity test 421d: rmfid en masse ====================== 01:29:18 (1783142958)
 - open/close 713 (time 1783142971.72 total 10.02 last 71.15)
 - open/close 1469 (time 1783142981.73 total 20.04 last 75.47)
 - open/close 2293 (time 1783142991.74 total 30.04 last 82.37)
 - open/close 3139 (time 1783143001.74 total 40.05 last 84.56)
 - open/close 4018 (time 1783143011.75 total 50.06 last 87.81)
total: 4097 open/close in 51.05 seconds: 80.25 ops/second