== sanity test 230l: readdir between MDTs won't crash ==== 12:42:20 (1785948140)
 - open/close 325 (time 1785948157.53 total 10.12 last 32.11)
 - open/close 880 (time 1785948167.55 total 20.13 last 55.44)
total: 1000 open/close in 22.39 seconds: 44.66 ops/second