== sanity test 60c: unlink file when mds full ============ 02:17:51 (1789021071)
create 5000 files
 - open/close 502 (time 1789021085.59 total 10.00 last 50.20)
 - open/close 1031 (time 1789021095.60 total 20.01 last 52.86)
 - open/close 1505 (time 1789021105.61 total 30.02 last 47.36)
 - open/close 1962 (time 1789021115.61 total 40.02 last 45.67)
 - open/close 2359 (time 1789021125.62 total 50.03 last 39.67)
 - open/close 2679 (time 1789021135.63 total 60.04 last 31.97)
 - open/close 2999 (time 1789021145.69 total 70.10 last 31.82)
 - open/close 3350 (time 1789021155.70 total 80.11 last 35.05)
 - open/close 3732 (time 1789021165.71 total 90.12 last 38.17)
 - open/close 4162 (time 1789021175.72 total 100.13 last 42.97)
 - open/close 4611 (time 1789021185.73 total 110.14 last 44.84)
total: 5000 open/close in 117.79 seconds: 42.45 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789021197 ; total 0 ; last 0)
total: 5000 unlinks in 92 seconds: 54.347828 unlinks/second
fail_loc=0