== sanity test 60c: unlink file when mds full ============ 10:32:25 (1783953145)
create 5000 files
 - open/close 429 (time 1783953159.40 total 10.02 last 42.83)
 - open/close 887 (time 1783953169.42 total 20.03 last 45.72)
 - open/close 1453 (time 1783953179.43 total 30.04 last 56.55)
 - open/close 2029 (time 1783953189.43 total 40.05 last 57.56)
 - open/close 2518 (time 1783953199.45 total 50.06 last 48.84)
 - open/close 2994 (time 1783953209.46 total 60.08 last 47.52)
 - open/close 3551 (time 1783953219.49 total 70.10 last 55.56)
 - open/close 4031 (time 1783953229.49 total 80.10 last 47.99)
 - open/close 4507 (time 1783953239.50 total 90.12 last 47.54)
 - open/close 4997 (time 1783953249.53 total 100.14 last 48.88)
total: 5000 open/close in 100.20 seconds: 49.90 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1783953254 ; total 0 ; last 0)
total: 5000 unlinks in 70 seconds: 71.428574 unlinks/second
fail_loc=0