== sanity test 421d: rmfid en masse ====================== 19:54:29 (1763340869)
 - open/close 756 (time 1763340883.44 total 10.01 last 75.51)
 - open/close 1564 (time 1763340893.45 total 20.02 last 80.71)
 - open/close 2347 (time 1763340903.45 total 30.02 last 78.28)
 - open/close 3095 (time 1763340913.45 total 40.03 last 74.79)
 - open/close 3841 (time 1763340923.46 total 50.03 last 74.54)
total: 4097 open/close in 53.56 seconds: 76.49 ops/second