== sanity test 51f: check many open files limit ========== 22:44:36 (1775875476)
MDT0 numfree=     532691 , max=100000
changed ulimit from 1024 to 100020
 - open/keep 2147 (time 1775875488.86 total 10.00 last 214.69)
 - open/keep 4998 (time 1775875498.86 total 20.00 last 285.09)
 - open/keep 7546 (time 1775875508.87 total 30.00 last 254.74)
 - open/keep 9560 (time 1775875518.87 total 40.01 last 201.34)
 - open/keep 10000 (time 1775875520.92 total 42.05 last 215.01)
 - open/keep 11931 (time 1775875530.92 total 52.06 last 193.06)
 - open/keep 13750 (time 1775875540.92 total 62.06 last 181.84)
 - open/keep 15620 (time 1775875550.92 total 72.06 last 186.98)
 - open/keep 17623 (time 1775875560.92 total 82.06 last 200.27)
 - open/keep 19223 (time 1775875570.93 total 92.07 last 159.91)
 - open/keep 20000 (time 1775875576.25 total 97.38 last 146.14)
 - open/keep 21569 (time 1775875586.25 total 107.39 last 156.83)
 - open/keep 23260 (time 1775875596.26 total 117.39 last 169.00)
total: 23732 open/keep in 120.00 seconds: 197.76 ops/second
 - closed 2757 (time 1775875608.87 total 10.00 last -2049.80)
 - closed 5424 (time 1775875618.87 total 20.00 last 266.65)
 - closed 9659 (time 1775875628.87 total 30.00 last 423.50)
 - closed 10000 (time 1775875629.71 total 30.84 last 406.63)
 - closed 13380 (time 1775875639.71 total 40.84 last 337.97)
 - closed 16787 (time 1775875649.71 total 50.84 last 340.69)
 - closed 20000 (time 1775875658.73 total 59.86 last 356.21)
 - closed 23304 (time 1775875668.73 total 69.87 last 330.33)
total: 23732 close in 71.07 seconds: 333.93 close/second
 - unlinked 0 (time 1775875672 ; total 0 ; last 0)
 - unlinked 10000 (time 1775875718 ; total 46 ; last 46)
 - unlinked 20000 (time 1775875762 ; total 90 ; last 44)
unlink(/mnt/lustre/d51f.sanity/f23732) error: No such file or directory
total: 23732 unlinks in 104 seconds: 228.192307 unlinks/second