== sanity test 51f: check many open files limit ========== 12:40:01 (1711989601)
MDT0 numfree=491271, max=100000
changed ulimit from 1024 to 100020
 - open/keep 1995 (time 1711989614.36 total 10.01 last 199.37)
 - open/keep 3859 (time 1711989624.36 total 20.01 last 186.38)
 - open/keep 5519 (time 1711989634.36 total 30.01 last 165.94)
 - open/keep 7132 (time 1711989644.36 total 40.01 last 161.30)
 - open/keep 8559 (time 1711989654.36 total 50.01 last 142.69)
 - open/keep 9835 (time 1711989664.36 total 60.01 last 127.60)
 - open/keep 11045 (time 1711989674.36 total 70.01 last 121.00)
 - open/keep 12129 (time 1711989684.38 total 80.03 last 108.24)
 - open/keep 12231 (time 1711989696.47 total 92.12 last 8.44)
 - open/keep 12265 (time 1711989707.82 total 103.47 last 2.99)
 - open/keep 12747 (time 1711989724.25 total 119.90 last 29.34)
total: 12758 open/keep in 120.00 seconds: 106.31 ops/second
 - closed 3334 (time 1711989734.36 total 10.00 last -941.01)
 - closed 6168 (time 1711989744.36 total 20.01 last 283.34)
 - closed 8957 (time 1711989754.36 total 30.01 last 278.83)
 - closed 10000 (time 1711989758.81 total 34.46 last 234.32)
 - closed 12436 (time 1711989768.82 total 44.46 last 243.45)
total: 12758 close in 45.86 seconds: 278.22 close/second
 - unlinked 0 (time 1711989771 ; total 0 ; last 0)
 - unlinked 10000 (time 1711989851 ; total 80 ; last 80)
unlink(/mnt/lustre/d51f.sanity/f12758) error: No such file or directory
total: 12758 unlinks in 93 seconds: 137.182800 unlinks/second