== sanity test 60c: unlink file when mds full ============ 13:26:12 (1789061172)
create 5000 files
 - open/close 462 (time 1789061187.36 total 10.01 last 46.15)
 - open/close 971 (time 1789061197.37 total 20.02 last 50.87)
 - open/close 1456 (time 1789061207.39 total 30.04 last 48.38)
 - open/close 1940 (time 1789061217.41 total 40.06 last 48.30)
 - open/close 2345 (time 1789061227.43 total 50.07 last 40.45)
 - open/close 2750 (time 1789061237.45 total 60.10 last 40.39)
 - open/close 3216 (time 1789061247.47 total 70.11 last 46.54)
 - open/close 3723 (time 1789061257.47 total 80.12 last 50.66)
 - open/close 4190 (time 1789061267.47 total 90.12 last 46.69)
 - open/close 4710 (time 1789061277.48 total 100.13 last 51.98)
total: 5000 open/close in 106.22 seconds: 47.07 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789061289 ; total 0 ; last 0)
total: 5000 unlinks in 72 seconds: 69.444443 unlinks/second
fail_loc=0