== sanity test 421d: rmfid en masse ====================== 12:44:11 (1772473451)
 - open/close 908 (time 1772473464.55 total 10.00 last 90.78)
 - open/close 1780 (time 1772473474.55 total 20.01 last 87.12)
 - open/close 2727 (time 1772473484.56 total 30.01 last 94.68)
 - open/close 3558 (time 1772473494.56 total 40.02 last 83.08)
total: 4097 open/close in 47.97 seconds: 85.40 ops/second