== sanity test 51f: check many open files limit ========== 10:10:24 (1789135824)
MDT0 numfree=     525796, max=100000
changed ulimit from 1024 to 100020
 - open/keep 1249 (time 1789135838.90 total 10.00 last 124.90)
 - open/keep 2492 (time 1789135848.92 total 20.02 last 124.04)
 - open/keep 3474 (time 1789135858.93 total 30.03 last 98.11)
 - open/keep 4410 (time 1789135868.95 total 40.06 last 93.35)
 - open/keep 5625 (time 1789135878.97 total 50.07 last 121.33)
 - open/keep 6758 (time 1789135888.97 total 60.08 last 113.24)
 - open/keep 7846 (time 1789135898.99 total 70.09 last 108.63)
 - open/keep 9028 (time 1789135909.00 total 80.11 last 118.01)
 - open/keep 10000 (time 1789135916.69 total 87.80 last 126.38)
 - open/keep 11307 (time 1789135926.70 total 97.80 last 130.63)
 - open/keep 12470 (time 1789135936.70 total 107.81 last 116.24)
 - open/keep 13645 (time 1789135946.71 total 117.81 last 117.45)
total: 13929 open/keep in 120.00 seconds: 116.07 ops/second
 - closed 1910 (time 1789135958.90 total 10.00 last -1173.38)
 - closed 3756 (time 1789135968.90 total 20.00 last 184.56)
 - closed 5313 (time 1789135978.91 total 30.01 last 155.62)
 - closed 7042 (time 1789135988.91 total 40.01 last 172.88)
 - closed 8924 (time 1789135998.91 total 50.01 last 188.18)
 - closed 10000 (time 1789136005.48 total 56.58 last 163.80)
 - closed 12064 (time 1789136015.48 total 66.58 last 206.38)
 - closed 13895 (time 1789136025.48 total 76.58 last 183.06)
total: 13929 close in 76.73 seconds: 181.53 close/second
 - unlinked 0 (time 1789136030 ; total 0 ; last 0)
 - unlinked 10000 (time 1789136115 ; total 85 ; last 85)
unlink(/mnt/lustre/d51f.sanity/f13929) error: No such file or directory
total: 13929 unlinks in 116 seconds: 120.077583 unlinks/second