== sanity test 421d: rmfid en masse ====================== 23:09:43 (1763352583)
 - open/close 2018 (time 1763352595.64 total 10.00 last 201.78)
 - open/close 3616 (time 1763352605.64 total 20.00 last 159.79)
total: 4097 open/close in 23.26 seconds: 176.16 ops/second