== sanity test 421d: rmfid en masse ====================== 11:02:17 (1783954937)
 - open/close 684 (time 1783954953.07 total 10.01 last 68.34)
 - open/close 1426 (time 1783954963.07 total 20.01 last 74.19)
 - open/close 2286 (time 1783954973.08 total 30.02 last 85.91)
 - open/close 3333 (time 1783954983.09 total 40.03 last 104.63)
total: 4097 open/close in 47.91 seconds: 85.52 ops/second