== sanity test 421d: rmfid en masse ====================== 18:40:20 (1786833620)
 - open/close 764 (time 1786833635.28 total 10.00 last 76.38)
 - open/close 1591 (time 1786833645.28 total 20.00 last 82.68)
 - open/close 2489 (time 1786833655.29 total 30.01 last 89.78)
 - open/close 3440 (time 1786833665.29 total 40.01 last 95.10)
total: 4097 open/close in 46.85 seconds: 87.44 ops/second