== sanity test 60c: unlink file when mds full ============ 23:15:18 (1787109318)
create 5000 files
 - open/close 312 (time 1787109333.99 total 10.04 last 31.07)
 - open/close 818 (time 1787109344.00 total 20.05 last 50.56)
 - open/close 1135 (time 1787109354.00 total 30.06 last 31.67)
 - open/close 1387 (time 1787109364.03 total 40.08 last 25.14)
 - open/close 1749 (time 1787109374.05 total 50.10 last 36.12)
 - open/close 2081 (time 1787109384.07 total 60.12 last 33.14)
 - open/close 2590 (time 1787109394.08 total 70.14 last 50.81)
 - open/close 3122 (time 1787109404.10 total 80.15 last 53.12)
 - open/close 3625 (time 1787109414.11 total 90.17 last 50.23)
 - open/close 4220 (time 1787109424.14 total 100.19 last 59.37)
 - open/close 4828 (time 1787109434.14 total 110.20 last 60.77)
total: 5000 open/close in 112.80 seconds: 44.33 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787109440 ; total 0 ; last 0)
total: 5000 unlinks in 62 seconds: 80.645164 unlinks/second
fail_loc=0