== sanity test 60c: unlink file when mds full ============ 15:22:00 (1788463320)
create 5000 files
 - open/close 595 (time 1788463335.03 total 10.02 last 59.41)
 - open/close 1185 (time 1788463345.04 total 20.03 last 58.91)
 - open/close 1762 (time 1788463355.05 total 30.03 last 57.69)
 - open/close 2408 (time 1788463365.05 total 40.04 last 64.55)
 - open/close 2952 (time 1788463375.06 total 50.04 last 54.39)
 - open/close 3530 (time 1788463385.07 total 60.05 last 57.74)
 - open/close 4075 (time 1788463395.07 total 70.06 last 54.45)
 - open/close 4601 (time 1788463405.08 total 80.07 last 52.54)
total: 5000 open/close in 86.22 seconds: 57.99 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788463415 ; total 0 ; last 0)
total: 5000 unlinks in 59 seconds: 84.745766 unlinks/second
fail_loc=0