== sanity test 60c: unlink file when mds full ============ 19:24:47 (1787786687)
create 5000 files
 - open/close 455 (time 1787786702.66 total 10.02 last 45.43)
 - open/close 887 (time 1787786712.66 total 20.02 last 43.19)
 - open/close 1403 (time 1787786722.68 total 30.04 last 51.51)
 - open/close 1879 (time 1787786732.68 total 40.04 last 47.60)
 - open/close 2334 (time 1787786742.68 total 50.04 last 45.47)
 - open/close 2865 (time 1787786752.69 total 60.04 last 53.09)
 - open/close 3397 (time 1787786762.70 total 70.06 last 53.14)
 - open/close 3836 (time 1787786772.70 total 80.06 last 43.89)
 - open/close 4288 (time 1787786782.71 total 90.07 last 45.17)
 - open/close 4769 (time 1787786792.72 total 100.08 last 48.04)
total: 5000 open/close in 104.86 seconds: 47.68 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787786802 ; total 0 ; last 0)
total: 5000 unlinks in 78 seconds: 64.102562 unlinks/second
fail_loc=0