== sanity test 421d: rmfid en masse ====================== 19:49:08 (1746143348)
 - open/close 1499 (time 1746143360.28 total 10.01 last 149.80)
 - open/close 2804 (time 1746143370.28 total 20.01 last 130.50)
 - open/close 3954 (time 1746143380.28 total 30.01 last 115.00)
total: 4097 open/close in 31.22 seconds: 131.22 ops/second