== sanity test 421d: rmfid en masse ====================== 21:55:41 (1784944541)
 - open/close 931 (time 1784944554.40 total 10.00 last 93.06)
 - open/close 1952 (time 1784944564.40 total 20.01 last 102.08)
 - open/close 3154 (time 1784944574.41 total 30.01 last 120.11)
total: 4097 open/close in 39.24 seconds: 104.40 ops/second