== sanity test 230l: readdir between MDTs won't crash ==== 22:17:41 (1788920261)
 - open/close 443 (time 1788920275.84 total 10.01 last 44.24)
 - open/close 832 (time 1788920285.86 total 20.03 last 38.84)
total: 1000 open/close in 23.97 seconds: 41.72 ops/second