== sanity test 421d: rmfid en masse ====================== 23:28:37 (1746156517)
 - open/close 1245 (time 1746156528.97 total 10.00 last 124.49)
 - open/close 2356 (time 1746156538.97 total 20.00 last 111.08)
 - open/close 3598 (time 1746156548.98 total 30.01 last 124.15)
total: 4097 open/close in 34.19 seconds: 119.83 ops/second