== sanity test 421d: rmfid en masse ====================== 18:57:35 (1787612255)
 - open/close 744 (time 1787612270.73 total 10.01 last 74.34)
 - open/close 1541 (time 1787612280.73 total 20.02 last 79.63)
 - open/close 2409 (time 1787612290.74 total 30.02 last 86.78)
 - open/close 3107 (time 1787612300.74 total 40.02 last 69.79)
 - open/close 3825 (time 1787612310.74 total 50.03 last 71.77)
total: 4097 open/close in 53.11 seconds: 77.14 ops/second