== sanity test 60c: unlink file when mds full ============ 19:22:56 (1787613776)
create 5000 files
 - open/close 490 (time 1787613790.41 total 10.01 last 48.94)
 - open/close 972 (time 1787613800.43 total 20.04 last 48.07)
 - open/close 1390 (time 1787613810.45 total 30.06 last 41.72)
 - open/close 1840 (time 1787613820.46 total 40.07 last 44.96)
 - open/close 2297 (time 1787613830.46 total 50.07 last 45.69)
 - open/close 2752 (time 1787613840.47 total 60.07 last 45.48)
 - open/close 3196 (time 1787613850.48 total 70.08 last 44.36)
 - open/close 3650 (time 1787613860.48 total 80.08 last 45.38)
 - open/close 4096 (time 1787613870.49 total 90.09 last 44.56)
 - open/close 4528 (time 1787613880.49 total 100.10 last 43.17)
 - open/close 4990 (time 1787613890.53 total 110.13 last 46.04)
total: 5000 open/close in 110.35 seconds: 45.31 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787613896 ; total 0 ; last 0)
total: 5000 unlinks in 82 seconds: 60.975609 unlinks/second
fail_loc=0