== sanity test 230l: readdir between MDTs won't crash ==== 00:07:15 (1777003635)
 - open/close 246 (time 1777003656.09 total 10.02 last 24.55)
 - open/close 487 (time 1777003666.10 total 20.03 last 24.08)
 - open/close 732 (time 1777003676.14 total 30.07 last 24.39)
 - open/close 964 (time 1777003686.16 total 40.09 last 23.17)
total: 1000 open/close in 41.34 seconds: 24.19 ops/second