== sanity test 421d: rmfid en masse ====================== 15:35:19 (1776195319)
 - open/close 830 (time 1776195333.93 total 10.01 last 82.91)
 - open/close 1620 (time 1776195343.93 total 20.01 last 78.97)
 - open/close 2439 (time 1776195353.94 total 30.02 last 81.89)
 - open/close 3311 (time 1776195363.94 total 40.02 last 87.12)
total: 4097 open/close in 49.32 seconds: 83.07 ops/second