== sanity test 421d: rmfid en masse ====================== 14:00:58 (1761242458)
 - open/close 969 (time 1761242471.46 total 10.01 last 96.78)
 - open/close 1841 (time 1761242481.46 total 20.01 last 87.18)
 - open/close 2746 (time 1761242491.46 total 30.02 last 90.45)
 - open/close 3658 (time 1761242501.47 total 40.03 last 91.13)
total: 4097 open/close in 44.64 seconds: 91.78 ops/second