== sanity test 60c: unlink file when mds full ============ 15:16:47 (1787599007)
create 5000 files
 - open/close 563 (time 1787599022.02 total 10.01 last 56.22)
 - open/close 1092 (time 1787599032.02 total 20.02 last 52.87)
 - open/close 1663 (time 1787599042.02 total 30.02 last 57.09)
 - open/close 2179 (time 1787599052.03 total 40.03 last 51.56)
 - open/close 2730 (time 1787599062.04 total 50.03 last 55.09)
 - open/close 3237 (time 1787599072.05 total 60.04 last 50.65)
 - open/close 3699 (time 1787599082.10 total 70.09 last 45.96)
 - open/close 4181 (time 1787599092.10 total 80.09 last 48.20)
 - open/close 4673 (time 1787599102.12 total 90.12 last 49.09)
total: 5000 open/close in 98.09 seconds: 50.97 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787599115 ; total 0 ; last 0)
total: 5000 unlinks in 76 seconds: 65.789474 unlinks/second
fail_loc=0