== sanity test 421d: rmfid en masse ====================== 05:31:11 (1789551071)
 - open/close 927 (time 1789551085.52 total 10.01 last 92.61)
 - open/close 1881 (time 1789551095.52 total 20.01 last 95.35)
 - open/close 2928 (time 1789551105.52 total 30.02 last 104.67)
 - open/close 3957 (time 1789551115.53 total 40.02 last 102.84)
total: 4097 open/close in 41.19 seconds: 99.47 ops/second