== sanity test 421d: rmfid en masse ====================== 01:39:31 (1788845971)
 - open/close 755 (time 1788845986.32 total 10.01 last 75.44)
 - open/close 1486 (time 1788845996.34 total 20.02 last 73.00)
 - open/close 2230 (time 1788846006.34 total 30.03 last 74.37)
 - open/close 3023 (time 1788846016.35 total 40.03 last 79.27)
 - open/close 3714 (time 1788846026.35 total 50.03 last 69.07)
total: 4097 open/close in 55.13 seconds: 74.32 ops/second