== sanity test 421d: rmfid en masse ====================== 18:13:11 (1790979191)
 - open/close 828 (time 1790979206.18 total 10.01 last 82.74)
 - open/close 1571 (time 1790979216.19 total 20.02 last 74.21)
 - open/close 2344 (time 1790979226.21 total 30.04 last 77.17)
 - open/close 3015 (time 1790979236.21 total 40.04 last 67.08)
 - open/close 3737 (time 1790979246.22 total 50.05 last 72.16)
total: 4097 open/close in 54.03 seconds: 75.84 ops/second