== sanity test 421d: rmfid en masse ====================== 18:23:32 (1788819812)
 - open/close 541 (time 1788819827.42 total 10.01 last 54.07)
 - open/close 1100 (time 1788819837.42 total 20.01 last 55.89)
 - open/close 2014 (time 1788819847.43 total 30.01 last 91.33)
 - open/close 2893 (time 1788819857.43 total 40.02 last 87.87)
 - open/close 3745 (time 1788819867.43 total 50.02 last 85.20)
total: 4097 open/close in 55.34 seconds: 74.03 ops/second