== sanity test 60c: unlink file when mds full ============ 06:14:31 (1782728071)
create 5000 files
 - open/close 534 (time 1782728086.77 total 10.00 last 53.39)
 - open/close 1080 (time 1782728096.79 total 20.02 last 54.50)
 - open/close 1601 (time 1782728106.80 total 30.03 last 52.04)
 - open/close 2106 (time 1782728116.81 total 40.04 last 50.47)
 - open/close 2621 (time 1782728126.81 total 50.04 last 51.49)
 - open/close 3113 (time 1782728136.83 total 60.06 last 49.11)
 - open/close 3580 (time 1782728146.83 total 70.06 last 46.69)
 - open/close 4079 (time 1782728156.84 total 80.07 last 49.87)
 - open/close 4699 (time 1782728166.85 total 90.08 last 61.90)
total: 5000 open/close in 95.56 seconds: 52.32 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1782728175 ; total 0 ; last 0)
total: 5000 unlinks in 69 seconds: 72.463768 unlinks/second
fail_loc=0