== sanity test 60c: unlink file when mds full ============ 19:09:37 (1788563377)
create 5000 files
 - open/close 441 (time 1788563392.99 total 10.02 last 44.03)
 - open/close 876 (time 1788563403.01 total 20.04 last 43.41)
 - open/close 1333 (time 1788563413.05 total 30.08 last 45.51)
 - open/close 1787 (time 1788563423.05 total 40.08 last 45.38)
 - open/close 2225 (time 1788563433.08 total 50.12 last 43.65)
 - open/close 2595 (time 1788563443.11 total 60.14 last 36.92)
 - open/close 3032 (time 1788563453.11 total 70.14 last 43.68)
 - open/close 3427 (time 1788563463.12 total 80.15 last 39.46)
 - open/close 3818 (time 1788563473.12 total 90.15 last 39.10)
 - open/close 4246 (time 1788563483.14 total 100.17 last 42.72)
 - open/close 4696 (time 1788563493.15 total 110.18 last 44.97)
total: 5000 open/close in 118.52 seconds: 42.19 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788563506 ; total 0 ; last 0)
total: 5000 unlinks in 90 seconds: 55.555557 unlinks/second
fail_loc=0