== sanity test 421d: rmfid en masse ====================== 08:09:59 (1788869399)
 - open/close 1789 (time 1788869411.46 total 10.00 last 178.88)
 - open/close 3397 (time 1788869421.46 total 20.01 last 160.73)
total: 4097 open/close in 23.89 seconds: 171.48 ops/second