== sanity test 421d: rmfid en masse ====================== 19:18:59 (1773616739)
 - open/close 796 (time 1773616753.58 total 10.00 last 79.60)
 - open/close 1549 (time 1773616763.59 total 20.01 last 75.25)
 - open/close 2455 (time 1773616773.60 total 30.01 last 90.54)
 - open/close 3301 (time 1773616783.60 total 40.02 last 84.56)
total: 4097 open/close in 48.89 seconds: 83.80 ops/second