== sanity test 421d: rmfid en masse ====================== 20:09:11 (1787875751)
 - open/close 768 (time 1787875764.99 total 10.01 last 76.74)
 - open/close 1505 (time 1787875775.00 total 20.02 last 73.63)
 - open/close 2224 (time 1787875785.00 total 30.02 last 71.88)
 - open/close 3026 (time 1787875795.00 total 40.02 last 80.19)
 - open/close 3770 (time 1787875805.01 total 50.03 last 74.35)
total: 4097 open/close in 54.89 seconds: 74.64 ops/second