== sanity test 230l: readdir between MDTs won't crash ==== 02:13:46 (1785392026)
 - open/close 492 (time 1785392041.42 total 10.01 last 49.14)
 - open/close 988 (time 1785392051.44 total 20.03 last 49.53)
total: 1000 open/close in 20.22 seconds: 49.45 ops/second