== sanity test 421d: rmfid en masse ====================== 16:39:56 (1789591196)
 - open/close 745 (time 1789591211.23 total 10.01 last 74.43)
 - open/close 1476 (time 1789591221.24 total 20.02 last 73.01)
 - open/close 2148 (time 1789591231.24 total 30.03 last 67.17)
 - open/close 2800 (time 1789591241.24 total 40.03 last 65.18)
 - open/close 3499 (time 1789591251.26 total 50.04 last 69.82)
total: 4097 open/close in 58.43 seconds: 70.11 ops/second