== sanity test 51f: check many open files limit ========== 11:40:37 (1788363637)
MDT0 numfree=     541470, max=100000
changed ulimit from 1024 to 100020
 - open/keep 1903 (time 1788363649.65 total 10.00 last 190.21)
 - open/keep 4811 (time 1788363659.65 total 20.01 last 290.78)
 - open/keep 6905 (time 1788363669.66 total 30.01 last 209.32)
 - open/keep 9081 (time 1788363679.66 total 40.02 last 217.45)
 - open/keep 10000 (time 1788363683.31 total 43.66 last 252.27)
 - open/keep 11982 (time 1788363693.31 total 53.66 last 198.13)
 - open/keep 14251 (time 1788363703.31 total 63.67 last 226.82)
 - open/keep 16859 (time 1788363713.31 total 73.67 last 260.78)
 - open/keep 19227 (time 1788363723.32 total 83.67 last 236.77)
 - open/keep 20000 (time 1788363726.50 total 86.86 last 242.53)
 - open/keep 22203 (time 1788363736.51 total 96.86 last 220.19)
 - open/keep 25012 (time 1788363746.51 total 106.86 last 280.89)
 - open/keep 27672 (time 1788363756.51 total 116.86 last 265.90)
total: 28808 open/keep in 120.00 seconds: 240.06 ops/second
 - closed 5021 (time 1788363769.65 total 10.00 last -2264.98)
 - closed 10000 (time 1788363779.61 total 19.96 last 500.10)
 - closed 15230 (time 1788363789.61 total 29.96 last 523.00)
 - closed 19636 (time 1788363799.61 total 39.96 last 440.59)
 - closed 20000 (time 1788363800.62 total 40.97 last 360.47)
 - closed 24263 (time 1788363810.62 total 50.97 last 426.24)
 - closed 28039 (time 1788363820.62 total 60.97 last 377.55)
total: 28808 close in 62.91 seconds: 457.95 close/second
 - unlinked 0 (time 1788363824 ; total 0 ; last 0)
 - unlinked 10000 (time 1788363869 ; total 45 ; last 45)
 - unlinked 20000 (time 1788363912 ; total 88 ; last 43)
unlink(/mnt/lustre/d51f.sanity/f28808) error: No such file or directory
total: 28808 unlinks in 124 seconds: 232.322586 unlinks/second