== sanity test 421d: rmfid en masse ====================== 11:24:36 (1788362676)
 - open/close 2901 (time 1788362687.43 total 10.00 last 290.03)
 - open/close 3981 (time 1788362697.43 total 20.01 last 107.93)
total: 4097 open/close in 20.85 seconds: 196.50 ops/second