== sanity test 421d: rmfid en masse ====================== 14:22:44 (1761243764)
 - open/close 849 (time 1761243777.67 total 10.01 last 84.79)
 - open/close 1738 (time 1761243787.68 total 20.02 last 88.80)
 - open/close 2581 (time 1761243797.69 total 30.03 last 84.24)
 - open/close 3442 (time 1761243807.69 total 40.03 last 86.10)
total: 4097 open/close in 47.99 seconds: 85.38 ops/second