== sanity test 421d: rmfid en masse ====================== 10:04:50 (1788876290)
 - open/close 1010 (time 1788876303.28 total 10.01 last 100.95)
 - open/close 2027 (time 1788876313.28 total 20.01 last 101.68)
 - open/close 3141 (time 1788876323.29 total 30.01 last 111.33)
total: 4097 open/close in 39.61 seconds: 103.44 ops/second