== sanity test 60c: unlink file when mds full ============ 10:27:39 (1788791259)
create 5000 files
 - open/close 516 (time 1788791273.62 total 10.01 last 51.54)
 - open/close 1038 (time 1788791283.63 total 20.02 last 52.17)
 - open/close 1475 (time 1788791293.66 total 30.05 last 43.55)
 - open/close 1985 (time 1788791303.69 total 40.08 last 50.87)
 - open/close 2365 (time 1788791313.70 total 50.09 last 37.96)
 - open/close 2901 (time 1788791323.71 total 60.10 last 53.55)
 - open/close 3397 (time 1788791333.74 total 70.13 last 49.44)
 - open/close 3859 (time 1788791343.74 total 80.13 last 46.18)
 - open/close 4303 (time 1788791353.75 total 90.14 last 44.39)
 - open/close 4793 (time 1788791363.75 total 100.14 last 49.00)
total: 5000 open/close in 105.05 seconds: 47.60 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788791373 ; total 0 ; last 0)
total: 5000 unlinks in 81 seconds: 61.728394 unlinks/second
fail_loc=0