== sanity test 51f: check many open files limit ========== 06:42:28 (1773657748)
MDT0 numfree=     493096 , max=100000
changed ulimit from 1024 to 100020
 - open/keep 1251 (time 1773657763.80 total 10.00 last 125.07)
 - open/keep 2569 (time 1773657773.80 total 20.00 last 131.78)
 - open/keep 4160 (time 1773657783.81 total 30.01 last 159.07)
 - open/keep 5846 (time 1773657793.81 total 40.01 last 168.58)
 - open/keep 6849 (time 1773657803.81 total 50.01 last 100.26)
 - open/keep 7963 (time 1773657813.81 total 60.01 last 111.37)
 - open/keep 9498 (time 1773657823.82 total 70.02 last 153.47)
 - open/keep 10000 (time 1773657826.94 total 73.14 last 160.80)
 - open/keep 11570 (time 1773657836.94 total 83.14 last 156.98)
 - open/keep 13118 (time 1773657846.95 total 93.15 last 154.60)
 - open/keep 14578 (time 1773657856.96 total 103.16 last 145.90)
 - open/keep 16000 (time 1773657866.96 total 113.16 last 142.15)
total: 17139 open/keep in 120.00 seconds: 142.82 ops/second
 - closed 2751 (time 1773657883.80 total 10.00 last -1324.61)
 - closed 5747 (time 1773657893.81 total 20.00 last 299.52)
 - closed 8488 (time 1773657903.81 total 30.01 last 274.07)
 - closed 10000 (time 1773657909.59 total 35.78 last 261.65)
 - closed 12806 (time 1773657919.59 total 45.79 last 280.58)
 - closed 15609 (time 1773657929.59 total 55.79 last 280.28)
total: 17139 close in 61.32 seconds: 279.49 close/second
 - unlinked 0 (time 1773657938 ; total 0 ; last 0)
 - unlinked 10000 (time 1773657996 ; total 58 ; last 58)
unlink(/mnt/lustre/d51f.sanity/f17139) error: No such file or directory
total: 17139 unlinks in 92 seconds: 186.293472 unlinks/second