== sanity test 60c: unlink file when mds full ============ 08:11:15 (1788869475)
create 5000 files
 - open/close 571 (time 1788869490.21 total 10.01 last 57.04)
 - open/close 1132 (time 1788869500.23 total 20.03 last 55.98)
 - open/close 1662 (time 1788869510.24 total 30.04 last 52.94)
 - open/close 2213 (time 1788869520.25 total 40.05 last 55.09)
 - open/close 2708 (time 1788869530.25 total 50.05 last 49.47)
 - open/close 3261 (time 1788869540.26 total 60.06 last 55.28)
 - open/close 3810 (time 1788869550.29 total 70.09 last 54.69)
 - open/close 4305 (time 1788869560.31 total 80.11 last 49.43)
 - open/close 4802 (time 1788869570.32 total 90.12 last 49.66)
total: 5000 open/close in 93.78 seconds: 53.31 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788869579 ; total 0 ; last 0)
total: 5000 unlinks in 64 seconds: 78.125000 unlinks/second
fail_loc=0