== sanity test 51f: check many open files limit ========== 10:20:25 (1753366825)
MDT0 numfree=498101, max=100000
changed ulimit from 1024 to 100020
 - open/keep 2353 (time 1753366837.44 total 10.00 last 235.27)
 - open/keep 4583 (time 1753366847.45 total 20.01 last 222.88)
 - open/keep 6734 (time 1753366857.45 total 30.01 last 215.09)
 - open/keep 8882 (time 1753366867.45 total 40.01 last 214.80)
 - open/keep 10000 (time 1753366871.76 total 44.33 last 258.89)
 - open/keep 12647 (time 1753366881.77 total 54.33 last 264.62)
 - open/keep 15307 (time 1753366891.77 total 64.33 last 265.97)
 - open/keep 18093 (time 1753366901.77 total 74.33 last 278.60)
 - open/keep 20000 (time 1753366909.68 total 82.24 last 241.10)
 - open/keep 22514 (time 1753366919.68 total 92.24 last 251.38)
 - open/keep 24935 (time 1753366929.68 total 102.24 last 242.01)
 - open/keep 27035 (time 1753366939.69 total 112.25 last 209.92)
total: 28888 open/keep in 120.00 seconds: 240.73 ops/second
 - closed 3719 (time 1753366957.44 total 10.00 last -2331.57)
 - closed 6779 (time 1753366967.44 total 20.00 last 306.00)
 - closed 10000 (time 1753366977.02 total 29.58 last 336.09)
 - closed 14162 (time 1753366987.03 total 39.58 last 416.17)
 - closed 17755 (time 1753366997.03 total 49.59 last 359.28)
 - closed 20000 (time 1753367004.74 total 57.30 last 291.11)
 - closed 23129 (time 1753367014.74 total 67.30 last 312.84)
 - closed 26678 (time 1753367024.74 total 77.30 last 354.88)
total: 28888 close in 83.16 seconds: 347.37 close/second
 - unlinked 0 (time 1753367032 ; total 0 ; last 0)
 - unlinked 10000 (time 1753367064 ; total 32 ; last 32)
 - unlinked 20000 (time 1753367092 ; total 60 ; last 28)
unlink(/mnt/lustre/d51f.sanity/f28888) error: No such file or directory
total: 28888 unlinks in 89 seconds: 324.584259 unlinks/second