== sanity test 421d: rmfid en masse ====================== 23:44:40 (1746157480)
 - open/close 1398 (time 1746157492.62 total 10.00 last 139.79)
 - open/close 2758 (time 1746157502.62 total 20.00 last 136.00)
total: 4097 open/close in 29.17 seconds: 140.47 ops/second