== sanity test 421d: rmfid en masse ====================== 18:18:46 (1781302726)
 - open/close 831 (time 1781302740.71 total 10.00 last 83.08)
 - open/close 1735 (time 1781302750.72 total 20.01 last 90.32)
 - open/close 2556 (time 1781302760.72 total 30.01 last 82.09)
 - open/close 3331 (time 1781302770.72 total 40.02 last 77.46)
total: 4097 open/close in 49.60 seconds: 82.60 ops/second