== sanity test 421d: rmfid en masse ====================== 01:08:54 (1762495734)
 - open/close 838 (time 1762495747.23 total 10.00 last 83.76)
 - open/close 1662 (time 1762495757.23 total 20.01 last 82.39)
 - open/close 2474 (time 1762495767.24 total 30.01 last 81.19)
 - open/close 3281 (time 1762495777.24 total 40.02 last 80.64)
total: 4097 open/close in 49.10 seconds: 83.44 ops/second