== sanity test 421d: rmfid en masse ====================== 17:31:32 (1788471092)
 - open/close 867 (time 1788471106.93 total 10.01 last 86.65)
 - open/close 1761 (time 1788471116.94 total 20.01 last 89.34)
 - open/close 2603 (time 1788471126.95 total 30.02 last 84.16)
 - open/close 3445 (time 1788471136.95 total 40.02 last 84.19)
total: 4097 open/close in 47.20 seconds: 86.80 ops/second