== sanity test 421d: rmfid en masse ====================== 11:09:20 (1761318560)
 - open/close 822 (time 1761318573.89 total 10.01 last 82.10)
 - open/close 1533 (time 1761318583.90 total 20.02 last 71.03)
 - open/close 2310 (time 1761318593.91 total 30.03 last 77.61)
 - open/close 3032 (time 1761318603.91 total 40.04 last 72.18)
 - open/close 3667 (time 1761318613.91 total 50.04 last 63.49)
total: 4097 open/close in 56.68 seconds: 72.28 ops/second