== sanity test 421d: rmfid en masse ====================== 12:05:16 (1787587516)
 - open/close 681 (time 1787587530.40 total 10.01 last 68.03)
 - open/close 1454 (time 1787587540.42 total 20.03 last 77.15)
 - open/close 2341 (time 1787587550.44 total 30.05 last 88.52)
 - open/close 3167 (time 1787587560.44 total 40.06 last 82.55)
 - open/close 4015 (time 1787587570.45 total 50.06 last 84.76)
total: 4097 open/close in 51.39 seconds: 79.72 ops/second