== sanity test 421d: rmfid en masse ====================== 22:53:20 (1746154400)
 - open/close 1759 (time 1746154412.33 total 10.01 last 175.70)
 - open/close 3297 (time 1746154422.34 total 20.01 last 153.75)
total: 4097 open/close in 26.19 seconds: 156.42 ops/second