== sanity test 60c: unlink file when mds full ============ 14:37:55 (1788460675)
create 5000 files
 - open/close 440 (time 1788460690.46 total 10.02 last 43.92)
 - open/close 876 (time 1788460700.47 total 20.03 last 43.53)
 - open/close 1313 (time 1788460710.48 total 30.04 last 43.68)
 - open/close 1738 (time 1788460720.48 total 40.04 last 42.49)
 - open/close 2130 (time 1788460730.50 total 50.06 last 39.13)
 - open/close 2554 (time 1788460740.51 total 60.07 last 42.35)
 - open/close 2968 (time 1788460750.52 total 70.08 last 41.34)
 - open/close 3398 (time 1788460760.53 total 80.09 last 42.97)
 - open/close 3831 (time 1788460770.54 total 90.10 last 43.27)
 - open/close 4218 (time 1788460780.55 total 100.11 last 38.63)
 - open/close 4607 (time 1788460790.56 total 110.12 last 38.88)
total: 5000 open/close in 119.71 seconds: 41.77 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788460805 ; total 0 ; last 0)
total: 5000 unlinks in 83 seconds: 60.240963 unlinks/second
fail_loc=0