== sanity test 51f: check many open files limit ========== 06:04:24 (1769079864)
MDT0 numfree=     489735 , max=100000
changed ulimit from 1024 to 100020
 - open/keep 1734 (time 1769079877.23 total 10.00 last 173.33)
 - open/keep 3150 (time 1769079887.24 total 20.01 last 141.55)
 - open/keep 4974 (time 1769079897.24 total 30.01 last 182.38)
 - open/keep 6754 (time 1769079907.24 total 40.02 last 177.86)
 - open/keep 8692 (time 1769079917.25 total 50.02 last 193.73)
 - open/keep 10000 (time 1769079923.99 total 56.76 last 193.97)
 - open/keep 12035 (time 1769079934.00 total 66.77 last 203.39)
 - open/keep 13990 (time 1769079944.00 total 76.77 last 195.48)
 - open/keep 15978 (time 1769079954.00 total 86.77 last 198.77)
 - open/keep 17998 (time 1769079964.00 total 96.77 last 201.99)
 - open/keep 20000 (time 1769079972.91 total 105.68 last 224.71)
 - open/keep 22029 (time 1769079982.91 total 115.68 last 202.85)
total: 22853 open/keep in 120.00 seconds: 190.44 ops/second
 - closed 3329 (time 1769079997.23 total 10.00 last -1869.98)
 - closed 6586 (time 1769080007.23 total 20.00 last 325.70)
 - closed 9925 (time 1769080017.23 total 30.00 last 333.85)
 - closed 10000 (time 1769080017.43 total 30.20 last 379.54)
 - closed 13454 (time 1769080027.43 total 40.20 last 345.34)
 - closed 16992 (time 1769080037.43 total 50.20 last 353.76)
 - closed 20000 (time 1769080045.87 total 58.65 last 356.22)
total: 22853 close in 66.34 seconds: 344.49 close/second
 - unlinked 0 (time 1769080055 ; total 0 ; last 0)
 - unlinked 10000 (time 1769080090 ; total 35 ; last 35)
 - unlinked 20000 (time 1769080127 ; total 72 ; last 37)
unlink(/mnt/lustre/d51f.sanity/f22853) error: No such file or directory
total: 22853 unlinks in 80 seconds: 285.662506 unlinks/second