== sanity test 421d: rmfid en masse ====================== 16:13:27 (1764796407)
 - open/close 857 (time 1764796420.40 total 10.00 last 85.66)
 - open/close 1764 (time 1764796430.41 total 20.01 last 90.61)
 - open/close 2604 (time 1764796440.42 total 30.02 last 83.94)
 - open/close 3391 (time 1764796450.43 total 40.03 last 78.63)
total: 4097 open/close in 49.50 seconds: 82.77 ops/second