== sanity test 421d: rmfid en masse ====================== 00:10:53 (1789272653)
 - open/close 1096 (time 1789272668.27 total 10.00 last 109.59)
 - open/close 1988 (time 1789272678.28 total 20.00 last 89.17)
 - open/close 2841 (time 1789272688.28 total 30.01 last 85.27)
 - open/close 3739 (time 1789272698.29 total 40.01 last 89.73)
total: 4097 open/close in 43.93 seconds: 93.26 ops/second