== sanity test 51f: check many open files limit ========== 21:30:16 (1708828216)
MDT0 numfree=494230, max=100000
changed ulimit from 1024 to 100020
 - open/keep 5668 (time 1708828227.04 total 10.00 last 566.78)
 - open/keep 8656 (time 1708828237.04 total 20.00 last 298.75)
 - open/keep 10000 (time 1708828242.55 total 25.51 last 244.05)
 - open/keep 12470 (time 1708828252.55 total 35.51 last 246.98)
 - open/keep 14447 (time 1708828262.55 total 45.51 last 197.63)
 - open/keep 16335 (time 1708828272.56 total 55.52 last 188.73)
 - open/keep 18165 (time 1708828282.56 total 65.52 last 182.95)
 - open/keep 19608 (time 1708828292.57 total 75.53 last 144.20)
 - open/keep 20000 (time 1708828295.32 total 78.28 last 142.31)
 - open/keep 21402 (time 1708828305.32 total 88.28 last 140.19)
 - open/keep 22839 (time 1708828315.33 total 98.29 last 143.62)
 - open/keep 24090 (time 1708828325.33 total 108.29 last 125.09)
 - open/keep 25248 (time 1708828335.34 total 118.30 last 115.71)
total: 25439 open/keep in 120.00 seconds: 211.99 ops/second
 - closed 9891 (time 1708828347.04 total 10.00 last -1535.63)
 - closed 10000 (time 1708828347.17 total 10.12 last 876.63)
 - closed 17440 (time 1708828357.17 total 20.13 last 743.89)
 - closed 20000 (time 1708828361.26 total 24.22 last 625.86)
 - closed 25282 (time 1708828371.26 total 34.22 last 528.12)
total: 25439 close in 34.59 seconds: 735.48 close/second
 - unlinked 0 (time 1708828372 ; total 0 ; last 0)
 - unlinked 10000 (time 1708828446 ; total 74 ; last 74)
 - unlinked 20000 (time 1708828483 ; total 111 ; last 37)
unlink(/mnt/lustre/d51f.sanity/f25439) error: No such file or directory
total: 25439 unlinks in 121 seconds: 210.239670 unlinks/second