== sanity test 60c: unlink file when mds full ============ 20:13:23 (1784938403)
create 5000 files
 - open/close 526 (time 1784938417.22 total 10.00 last 52.58)
 - open/close 1036 (time 1784938427.22 total 20.01 last 50.99)
 - open/close 1583 (time 1784938437.23 total 30.01 last 54.65)
 - open/close 2099 (time 1784938447.24 total 40.02 last 51.56)
 - open/close 2602 (time 1784938457.24 total 50.02 last 50.30)
 - open/close 3111 (time 1784938467.28 total 60.06 last 50.72)
 - open/close 3649 (time 1784938477.31 total 70.09 last 53.63)
 - open/close 4156 (time 1784938487.32 total 80.10 last 50.65)
 - open/close 4601 (time 1784938497.32 total 90.10 last 44.49)
total: 5000 open/close in 97.72 seconds: 51.17 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1784938509 ; total 0 ; last 0)
total: 5000 unlinks in 67 seconds: 74.626869 unlinks/second
fail_loc=0