== sanity test 60c: unlink file when mds full ============ 09:04:11 (1789131851)
create 5000 files
 - open/close 548 (time 1789131866.54 total 10.02 last 54.69)
 - open/close 1000 (time 1789131876.55 total 20.04 last 45.12)
 - open/close 1392 (time 1789131886.59 total 30.07 last 39.07)
 - open/close 1802 (time 1789131896.62 total 40.10 last 40.86)
 - open/close 2255 (time 1789131906.62 total 50.11 last 45.28)
 - open/close 2657 (time 1789131916.65 total 60.13 last 40.10)
 - open/close 3198 (time 1789131926.66 total 70.15 last 54.01)
 - open/close 3637 (time 1789131936.68 total 80.16 last 43.84)
 - open/close 4122 (time 1789131946.68 total 90.17 last 48.47)
 - open/close 4585 (time 1789131956.69 total 100.17 last 46.27)
total: 5000 open/close in 108.45 seconds: 46.11 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789131969 ; total 0 ; last 0)
total: 5000 unlinks in 72 seconds: 69.444443 unlinks/second
fail_loc=0