== sanity test 421d: rmfid en masse ====================== 18:57:01 (1746140221)
 - open/close 1176 (time 1746140233.80 total 10.01 last 117.54)
 - open/close 2243 (time 1746140243.81 total 20.01 last 106.63)
 - open/close 3413 (time 1746140253.81 total 30.01 last 116.99)
total: 4097 open/close in 36.22 seconds: 113.12 ops/second