== sanity test 421d: rmfid en masse ====================== 12:10:54 (1772471454)
 - open/close 772 (time 1772471468.18 total 10.01 last 77.15)
 - open/close 1585 (time 1772471478.20 total 20.02 last 81.16)
 - open/close 2364 (time 1772471488.21 total 30.04 last 77.76)
 - open/close 3179 (time 1772471498.22 total 40.04 last 81.50)
 - open/close 4005 (time 1772471508.22 total 50.05 last 82.54)
total: 4097 open/close in 51.28 seconds: 79.90 ops/second