== sanity test 60c: unlink file when mds full ============ 10:11:03 (1789135863)
create 5000 files
 - open/close 505 (time 1789135878.36 total 10.02 last 50.42)
 - open/close 991 (time 1789135888.37 total 20.02 last 48.58)
 - open/close 1493 (time 1789135898.38 total 30.03 last 50.15)
 - open/close 2070 (time 1789135908.39 total 40.04 last 57.63)
 - open/close 2619 (time 1789135918.39 total 50.05 last 54.88)
 - open/close 3133 (time 1789135928.42 total 60.07 last 51.26)
 - open/close 3640 (time 1789135938.43 total 70.08 last 50.66)
 - open/close 4127 (time 1789135948.45 total 80.10 last 48.61)
 - open/close 4543 (time 1789135958.45 total 90.11 last 41.58)
total: 5000 open/close in 97.63 seconds: 51.21 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789135970 ; total 0 ; last 0)
total: 5000 unlinks in 73 seconds: 68.493149 unlinks/second
fail_loc=0