== sanity test 60c: unlink file when mds full ============ 22:08:40 (1789265320)
create 5000 files
 - open/close 415 (time 1789265335.38 total 10.01 last 41.44)
 - open/close 823 (time 1789265345.39 total 20.02 last 40.76)
 - open/close 1227 (time 1789265355.43 total 30.07 last 40.21)
 - open/close 1659 (time 1789265365.46 total 40.10 last 43.10)
 - open/close 2128 (time 1789265375.47 total 50.10 last 46.86)
 - open/close 2562 (time 1789265385.48 total 60.12 last 43.32)
 - open/close 2991 (time 1789265395.52 total 70.15 last 42.77)
 - open/close 3405 (time 1789265405.53 total 80.16 last 41.35)
 - open/close 3823 (time 1789265415.54 total 90.17 last 41.76)
 - open/close 4230 (time 1789265425.55 total 100.19 last 40.63)
 - open/close 4648 (time 1789265435.56 total 110.19 last 41.78)
total: 5000 open/close in 118.60 seconds: 42.16 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789265448 ; total 0 ; last 0)
total: 5000 unlinks in 85 seconds: 58.823528 unlinks/second
fail_loc=0