== sanity test 421d: rmfid en masse ====================== 03:21:57 (1746084117)
 - open/close 1749 (time 1746084128.93 total 10.00 last 174.88)
 - open/close 3205 (time 1746084138.94 total 20.01 last 145.54)
total: 4097 open/close in 25.91 seconds: 158.13 ops/second