== sanity test 421d: rmfid en masse ====================== 20:22:31 (1788567751)
 - open/close 844 (time 1788567765.87 total 10.00 last 84.37)
 - open/close 1656 (time 1788567775.88 total 20.01 last 81.12)
 - open/close 2442 (time 1788567785.89 total 30.02 last 78.51)
 - open/close 3159 (time 1788567795.89 total 40.03 last 71.66)
 - open/close 3895 (time 1788567805.90 total 50.04 last 73.54)
total: 4097 open/close in 53.03 seconds: 77.26 ops/second