== sanity test 60c: unlink file when mds full ============ 15:50:27 (1777578627)
create 5000 files
 - open/close 573 (time 1777578641.73 total 10.01 last 57.24)
 - open/close 1174 (time 1777578651.73 total 20.01 last 60.08)
 - open/close 1696 (time 1777578661.75 total 30.03 last 52.10)
 - open/close 2220 (time 1777578671.76 total 40.04 last 52.38)
 - open/close 2807 (time 1777578681.76 total 50.05 last 58.66)
 - open/close 3391 (time 1777578691.77 total 60.05 last 58.35)
 - open/close 3935 (time 1777578701.77 total 70.05 last 54.39)
 - open/close 4466 (time 1777578711.78 total 80.06 last 53.08)
 - open/close 4963 (time 1777578721.78 total 90.06 last 49.70)
total: 5000 open/close in 90.76 seconds: 55.09 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1777578726 ; total 0 ; last 0)
total: 5000 unlinks in 70 seconds: 71.428574 unlinks/second
fail_loc=0