== sanity test 421d: rmfid en masse ====================== 05:10:51 (1787130651)
 - open/close 678 (time 1787130665.76 total 10.00 last 67.77)
 - open/close 1457 (time 1787130675.76 total 20.01 last 77.88)
 - open/close 2189 (time 1787130685.77 total 30.02 last 73.11)
 - open/close 3010 (time 1787130695.78 total 40.03 last 82.01)
 - open/close 3747 (time 1787130705.79 total 50.04 last 73.65)
total: 4097 open/close in 54.65 seconds: 74.97 ops/second