== sanity test 421d: rmfid en masse ====================== 12:16:37 (1776183397)
 - open/close 737 (time 1776183410.61 total 10.01 last 73.64)
 - open/close 1494 (time 1776183420.62 total 20.01 last 75.68)
 - open/close 2321 (time 1776183430.62 total 30.01 last 82.69)
 - open/close 3091 (time 1776183440.62 total 40.02 last 76.95)
 - open/close 3880 (time 1776183450.63 total 50.02 last 78.86)
total: 4097 open/close in 52.98 seconds: 77.34 ops/second