== sanity test 421d: rmfid en masse ====================== 17:40:31 (1790718031)
 - open/close 778 (time 1790718045.82 total 10.02 last 77.67)
 - open/close 1543 (time 1790718055.82 total 20.02 last 76.47)
 - open/close 2336 (time 1790718065.83 total 30.02 last 79.27)
 - open/close 3148 (time 1790718075.83 total 40.03 last 81.15)
 - open/close 3977 (time 1790718085.83 total 50.03 last 82.88)
total: 4097 open/close in 51.42 seconds: 79.68 ops/second