== sanity test 421d: rmfid en masse ====================== 00:11:04 (1787371864)
 - open/close 881 (time 1787371879.21 total 10.00 last 88.08)
 - open/close 1783 (time 1787371889.22 total 20.01 last 90.15)
 - open/close 2764 (time 1787371899.22 total 30.01 last 98.09)
 - open/close 3690 (time 1787371909.22 total 40.01 last 92.57)
total: 4097 open/close in 44.82 seconds: 91.40 ops/second