== sanity test 421d: rmfid en masse ====================== 10:31:55 (1787581915)
 - open/close 740 (time 1787581930.38 total 10.00 last 73.98)
 - open/close 1471 (time 1787581940.39 total 20.02 last 73.00)
 - open/close 2260 (time 1787581950.43 total 30.05 last 78.62)
 - open/close 3023 (time 1787581960.43 total 40.06 last 76.24)
 - open/close 3783 (time 1787581970.43 total 50.06 last 76.00)
total: 4097 open/close in 54.00 seconds: 75.87 ops/second