== sanity test 51f: check many open files limit ========== 17:59:23 (1781819963)
MDT0 numfree=     537401, max=100000
changed ulimit from 1024 to 100020
 - open/keep 2214 (time 1781819975.74 total 10.00 last 221.36)
 - open/keep 5052 (time 1781819985.74 total 20.00 last 283.79)
 - open/keep 7986 (time 1781819995.74 total 30.00 last 293.36)
 - open/keep 10000 (time 1781820002.72 total 36.98 last 288.74)
 - open/keep 14285 (time 1781820012.72 total 46.98 last 428.49)
 - open/keep 18160 (time 1781820022.72 total 56.98 last 387.44)
 - open/keep 20000 (time 1781820029.12 total 63.38 last 287.44)
 - open/keep 22342 (time 1781820039.12 total 73.38 last 234.18)
 - open/keep 25083 (time 1781820049.13 total 83.39 last 274.01)
 - open/keep 28129 (time 1781820059.13 total 93.39 last 304.44)
 - open/keep 30000 (time 1781820066.29 total 100.55 last 261.23)
 - open/keep 32924 (time 1781820076.30 total 110.55 last 292.35)
total: 36128 open/keep in 120.04 seconds: 300.98 ops/second
 - closed 5843 (time 1781820095.78 total 10.00 last -2708.06)
 - closed 10000 (time 1781820101.24 total 15.46 last 761.16)
 - closed 15170 (time 1781820111.24 total 25.47 last 516.79)
 - closed 19292 (time 1781820121.24 total 35.47 last 412.18)
 - closed 20000 (time 1781820123.23 total 37.45 last 356.35)
 - closed 23391 (time 1781820133.23 total 47.45 last 339.08)
 - closed 29319 (time 1781820143.23 total 57.45 last 592.72)
 - closed 30000 (time 1781820143.89 total 58.12 last 1028.04)
total: 36128 close in 66.57 seconds: 542.74 close/second
 - unlinked 0 (time 1781820153 ; total 0 ; last 0)
 - unlinked 10000 (time 1781820193 ; total 40 ; last 40)
 - unlinked 20000 (time 1781820227 ; total 74 ; last 34)
 - unlinked 30000 (time 1781820261 ; total 108 ; last 34)
unlink(/mnt/lustre/d51f.sanity/f36128) error: No such file or directory
total: 36128 unlinks in 126 seconds: 286.730164 unlinks/second