== sanity test 421d: rmfid en masse ====================== 18:13:53 (1778537633)
 - open/close 877 (time 1778537645.90 total 10.01 last 87.57)
 - open/close 1910 (time 1778537655.90 total 20.02 last 103.28)
 - open/close 2907 (time 1778537665.90 total 30.02 last 99.68)
 - open/close 3867 (time 1778537675.91 total 40.02 last 95.97)
total: 4097 open/close in 42.52 seconds: 96.35 ops/second