== sanity test 421d: rmfid en masse ====================== 10:40:59 (1758811259)
 - open/close 1332 (time 1758811271.03 total 10.00 last 133.16)
 - open/close 2573 (time 1758811281.03 total 20.01 last 124.05)
 - open/close 3662 (time 1758811291.04 total 30.01 last 108.87)
total: 4097 open/close in 33.27 seconds: 123.13 ops/second