== sanity test 60c: unlink file when mds full ============ 10:21:12 (1772464872)
create 5000 files
 - open/close 515 (time 1772464887.17 total 10.00 last 51.50)
 - open/close 1031 (time 1772464897.19 total 20.02 last 51.50)
 - open/close 1566 (time 1772464907.21 total 30.04 last 53.38)
 - open/close 2142 (time 1772464917.22 total 40.05 last 57.55)
 - open/close 2582 (time 1772464927.24 total 50.07 last 43.91)
 - open/close 3058 (time 1772464937.25 total 60.08 last 47.57)
 - open/close 3537 (time 1772464947.26 total 70.09 last 47.85)
 - open/close 4038 (time 1772464957.27 total 80.10 last 50.02)
 - open/close 4588 (time 1772464967.28 total 90.11 last 54.95)
total: 5000 open/close in 98.74 seconds: 50.64 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1772464979 ; total 0 ; last 0)
total: 5000 unlinks in 71 seconds: 70.422539 unlinks/second
fail_loc=0