== sanity test 421d: rmfid en masse ====================== 21:00:20 (1746147620)
 - open/close 1703 (time 1746147632.75 total 10.00 last 170.25)
 - open/close 3411 (time 1746147642.75 total 20.00 last 170.79)
total: 4097 open/close in 24.08 seconds: 170.17 ops/second