== sanity test 421d: rmfid en masse ====================== 22:02:57 (1787104977)
 - open/close 1572 (time 1787104989.64 total 10.00 last 157.18)
 - open/close 2942 (time 1787104999.64 total 20.00 last 136.95)
total: 4097 open/close in 26.83 seconds: 152.70 ops/second