== sanity test 421d: rmfid en masse ====================== 01:31:06 (1781242266)
 - open/close 922 (time 1781242281.49 total 10.02 last 92.04)
 - open/close 1810 (time 1781242291.50 total 20.02 last 88.79)
 - open/close 2662 (time 1781242301.50 total 30.03 last 85.14)
 - open/close 3301 (time 1781242311.50 total 40.03 last 63.89)
total: 4097 open/close in 49.71 seconds: 82.41 ops/second