== sanity test 230l: readdir between MDTs won't crash ==== 16:59:56 (1773608396)
 - open/close 423 (time 1773608413.83 total 10.01 last 42.27)
 - open/close 819 (time 1773608423.84 total 20.02 last 39.54)
total: 1000 open/close in 24.11 seconds: 41.47 ops/second