== sanity test 421d: rmfid en masse ====================== 12:16:29 (1789143389)
 - open/close 719 (time 1789143405.53 total 10.00 last 71.87)
 - open/close 1378 (time 1789143415.53 total 20.00 last 65.90)
 - open/close 2144 (time 1789143425.54 total 30.00 last 76.60)
 - open/close 3037 (time 1789143435.54 total 40.01 last 89.22)
 - open/close 3925 (time 1789143445.55 total 50.02 last 88.75)
total: 4097 open/close in 51.92 seconds: 78.91 ops/second