== sanity test 421d: rmfid en masse ====================== 09:55:42 (1761314142)
 - open/close 863 (time 1761314155.30 total 10.01 last 86.25)
 - open/close 1747 (time 1761314165.30 total 20.01 last 88.39)
 - open/close 2629 (time 1761314175.31 total 30.01 last 88.16)
 - open/close 3455 (time 1761314185.31 total 40.02 last 82.54)
total: 4097 open/close in 47.72 seconds: 85.85 ops/second