== sanity test 60c: unlink file when mds full ============ 23:32:57 (1788838377)
create 5000 files
 - open/close 441 (time 1788838392.42 total 10.00 last 44.09)
 - open/close 850 (time 1788838402.42 total 20.00 last 40.89)
 - open/close 1258 (time 1788838412.45 total 30.03 last 40.68)
 - open/close 1709 (time 1788838422.45 total 40.04 last 45.08)
 - open/close 2144 (time 1788838432.46 total 50.05 last 43.45)
 - open/close 2535 (time 1788838442.48 total 60.07 last 39.02)
 - open/close 2974 (time 1788838452.50 total 70.09 last 43.79)
 - open/close 3406 (time 1788838462.51 total 80.10 last 43.17)
 - open/close 3818 (time 1788838472.52 total 90.11 last 41.17)
 - open/close 4271 (time 1788838482.55 total 100.13 last 45.19)
 - open/close 4723 (time 1788838492.55 total 110.14 last 45.16)
total: 5000 open/close in 116.28 seconds: 43.00 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788838502 ; total 0 ; last 0)
total: 5000 unlinks in 82 seconds: 60.975609 unlinks/second
fail_loc=0