== sanity test 51f: check many open files limit ========== 22:10:50 (1788919850)
MDT0 numfree=     539824, max=100000
changed ulimit from 1024 to 100020
 - open/keep 2052 (time 1788919862.62 total 10.00 last 205.15)
 - open/keep 4092 (time 1788919872.62 total 20.00 last 203.99)
 - open/keep 6079 (time 1788919882.62 total 30.01 last 198.65)
 - open/keep 8073 (time 1788919892.63 total 40.01 last 199.26)
 - open/keep 10000 (time 1788919901.69 total 49.07 last 212.76)
 - open/keep 11939 (time 1788919911.69 total 59.07 last 193.83)
 - open/keep 14011 (time 1788919921.69 total 69.07 last 207.18)
 - open/keep 16199 (time 1788919931.70 total 79.08 last 218.74)
 - open/keep 17760 (time 1788919941.78 total 89.16 last 154.87)
 - open/keep 18448 (time 1788919951.78 total 99.16 last 68.78)
 - open/keep 19463 (time 1788919961.79 total 109.17 last 101.39)
 - open/keep 20000 (time 1788919968.37 total 115.75 last 81.56)
total: 20623 open/keep in 120.01 seconds: 171.85 ops/second
 - closed 2164 (time 1788919982.63 total 10.00 last -1783.19)
 - closed 4065 (time 1788919992.63 total 20.00 last 190.06)
 - closed 5766 (time 1788920002.64 total 30.01 last 170.03)
 - closed 7658 (time 1788920012.66 total 40.03 last 188.75)
 - closed 9106 (time 1788920022.66 total 50.03 last 144.78)
 - closed 10000 (time 1788920027.77 total 55.14 last 175.10)
 - closed 11801 (time 1788920037.77 total 65.14 last 180.09)
 - closed 13708 (time 1788920047.78 total 75.15 last 190.54)
 - closed 16081 (time 1788920057.78 total 85.15 last 237.25)
 - closed 18618 (time 1788920067.78 total 95.15 last 253.62)
 - closed 20000 (time 1788920072.92 total 100.30 last 268.75)
total: 20623 close in 102.27 seconds: 201.65 close/second
 - unlinked 0 (time 1788920078 ; total 0 ; last 0)
 - unlinked 10000 (time 1788920151 ; total 73 ; last 73)
 - unlinked 20000 (time 1788920221 ; total 143 ; last 70)
unlink(/mnt/lustre/d51f.sanity/f20623) error: No such file or directory
total: 20623 unlinks in 148 seconds: 139.344589 unlinks/second