== sanity test 421d: rmfid en masse ====================== 21:09:51 (1787792991)
 - open/close 729 (time 1787793005.91 total 10.01 last 72.81)
 - open/close 1543 (time 1787793015.92 total 20.02 last 81.37)
 - open/close 2325 (time 1787793025.92 total 30.02 last 78.17)
 - open/close 3047 (time 1787793035.93 total 40.03 last 72.12)
 - open/close 3695 (time 1787793045.93 total 50.03 last 64.78)
total: 4097 open/close in 57.10 seconds: 71.75 ops/second