== sanity test 421d: rmfid en masse ====================== 23:52:55 (1789789975)
 - open/close 811 (time 1789789989.15 total 10.00 last 81.07)
 - open/close 1733 (time 1789789999.16 total 20.01 last 92.14)
 - open/close 2574 (time 1789790009.16 total 30.01 last 84.09)
 - open/close 3471 (time 1789790019.17 total 40.02 last 89.63)
total: 4097 open/close in 47.07 seconds: 87.04 ops/second