== sanity test 60c: unlink file when mds full ============ 08:18:21 (1790770701)
create 5000 files
 - open/close 489 (time 1790770715.59 total 10.01 last 48.87)
 - open/close 1004 (time 1790770725.61 total 20.02 last 51.43)
 - open/close 1455 (time 1790770735.61 total 30.02 last 45.10)
 - open/close 1928 (time 1790770745.61 total 40.02 last 47.30)
 - open/close 2406 (time 1790770755.64 total 50.05 last 47.65)
 - open/close 2945 (time 1790770765.64 total 60.05 last 53.90)
 - open/close 3465 (time 1790770775.67 total 70.08 last 51.86)
 - open/close 3930 (time 1790770785.68 total 80.09 last 46.43)
 - open/close 4408 (time 1790770795.69 total 90.10 last 47.77)
 - open/close 4844 (time 1790770805.69 total 100.10 last 43.59)
total: 5000 open/close in 103.38 seconds: 48.37 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1790770813 ; total 0 ; last 0)
total: 5000 unlinks in 76 seconds: 65.789474 unlinks/second
fail_loc=0