== sanity test 421d: rmfid en masse ====================== 11:37:51 (1788363471)
 - open/close 954 (time 1788363484.38 total 10.01 last 95.32)
 - open/close 1946 (time 1788363494.38 total 20.01 last 99.13)
 - open/close 2949 (time 1788363504.39 total 30.02 last 100.28)
 - open/close 3952 (time 1788363514.39 total 40.02 last 100.22)
total: 4097 open/close in 41.52 seconds: 98.67 ops/second