== sanity test 60c: unlink file when mds full ============ 15:17:09 (1782242229)
create 5000 files
 - open/close 576 (time 1782242244.73 total 10.00 last 57.59)
 - open/close 1192 (time 1782242254.74 total 20.01 last 61.55)
 - open/close 1770 (time 1782242264.75 total 30.02 last 57.77)
 - open/close 2376 (time 1782242274.75 total 40.02 last 60.59)
 - open/close 2991 (time 1782242284.76 total 50.03 last 61.42)
 - open/close 3558 (time 1782242294.76 total 60.03 last 56.69)
 - open/close 4216 (time 1782242304.77 total 70.04 last 65.75)
 - open/close 4719 (time 1782242314.79 total 80.06 last 50.20)
total: 5000 open/close in 85.57 seconds: 58.43 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1782242324 ; total 0 ; last 0)
total: 5000 unlinks in 64 seconds: 78.125000 unlinks/second
fail_loc=0