== sanity test 421d: rmfid en masse ====================== 16:34:53 (1788208493)
 - open/close 684 (time 1788208509.13 total 10.00 last 68.37)
 - open/close 1470 (time 1788208519.14 total 20.01 last 78.52)
 - open/close 2308 (time 1788208529.15 total 30.02 last 83.76)
 - open/close 3094 (time 1788208539.18 total 40.05 last 78.36)
 - open/close 3852 (time 1788208549.18 total 50.06 last 75.76)
total: 4097 open/close in 53.12 seconds: 77.13 ops/second