== sanity test 421d: rmfid en masse ====================== 22:42:01 (1788921721)
 - open/close 788 (time 1788921735.72 total 10.00 last 78.78)
 - open/close 1567 (time 1788921745.72 total 20.01 last 77.87)
 - open/close 2364 (time 1788921755.73 total 30.01 last 79.65)
 - open/close 3229 (time 1788921765.73 total 40.02 last 86.47)
 - open/close 4033 (time 1788921775.75 total 50.04 last 80.23)
total: 4097 open/close in 50.91 seconds: 80.48 ops/second