== sanity test 421d: rmfid en masse ====================== 19:40:28 (1788219628)
 - open/close 899 (time 1788219643.44 total 10.00 last 89.86)
 - open/close 1741 (time 1788219653.45 total 20.01 last 84.12)
 - open/close 2645 (time 1788219663.45 total 30.02 last 90.33)
 - open/close 3404 (time 1788219673.46 total 40.03 last 75.86)
total: 4097 open/close in 47.78 seconds: 85.74 ops/second