== sanity test 60c: unlink file when mds full ============ 09:20:43 (1789132843)
create 5000 files
 - open/close 513 (time 1789132859.21 total 10.00 last 51.28)
 - open/close 1056 (time 1789132869.22 total 20.01 last 54.24)
 - open/close 1551 (time 1789132879.22 total 30.01 last 49.50)
 - open/close 2055 (time 1789132889.25 total 40.04 last 50.25)
 - open/close 2541 (time 1789132899.26 total 50.05 last 48.55)
 - open/close 3004 (time 1789132909.28 total 60.07 last 46.22)
 - open/close 3507 (time 1789132919.28 total 70.07 last 50.30)
 - open/close 3960 (time 1789132929.29 total 80.08 last 45.25)
 - open/close 4401 (time 1789132939.29 total 90.09 last 44.09)
 - open/close 4949 (time 1789132949.31 total 100.10 last 54.72)
total: 5000 open/close in 101.29 seconds: 49.36 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789132955 ; total 0 ; last 0)
total: 5000 unlinks in 73 seconds: 68.493149 unlinks/second
fail_loc=0