== sanity test 60c: unlink file when mds full ============ 10:20:29 (1787494829)
create 5000 files
 - open/close 469 (time 1787494844.54 total 10.01 last 46.86)
 - open/close 968 (time 1787494854.58 total 20.05 last 49.72)
 - open/close 1512 (time 1787494864.58 total 30.05 last 54.40)
 - open/close 1942 (time 1787494874.59 total 40.06 last 42.94)
 - open/close 2454 (time 1787494884.60 total 50.06 last 51.19)
 - open/close 2947 (time 1787494894.62 total 60.08 last 49.20)
 - open/close 3460 (time 1787494904.62 total 70.09 last 51.26)
 - open/close 3978 (time 1787494914.63 total 80.10 last 51.77)
 - open/close 4447 (time 1787494924.65 total 90.11 last 46.82)
 - open/close 4939 (time 1787494934.65 total 100.12 last 49.16)
total: 5000 open/close in 101.40 seconds: 49.31 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787494941 ; total 0 ; last 0)
total: 5000 unlinks in 72 seconds: 69.444443 unlinks/second
fail_loc=0