== sanity test 421d: rmfid en masse ====================== 02:04:54 (1786946694)
 - open/close 1659 (time 1786946706.33 total 10.01 last 165.78)
 - open/close 3236 (time 1786946716.33 total 20.01 last 157.68)
total: 4097 open/close in 24.86 seconds: 164.78 ops/second