== sanity test 60c: unlink file when mds full ============ 01:03:14 (1788930194)
create 5000 files
 - open/close 495 (time 1788930208.98 total 10.00 last 49.48)
 - open/close 1014 (time 1788930218.98 total 20.01 last 51.87)
 - open/close 1539 (time 1788930228.99 total 30.01 last 52.48)
 - open/close 2030 (time 1788930239.00 total 40.02 last 49.05)
 - open/close 2513 (time 1788930249.00 total 50.03 last 48.27)
 - open/close 3011 (time 1788930259.01 total 60.03 last 49.77)
 - open/close 3466 (time 1788930269.02 total 70.05 last 45.43)
 - open/close 3934 (time 1788930279.05 total 80.07 last 46.69)
 - open/close 4427 (time 1788930289.08 total 90.10 last 49.16)
 - open/close 4884 (time 1788930299.08 total 100.11 last 45.66)
total: 5000 open/close in 102.79 seconds: 48.64 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788930306 ; total 0 ; last 0)
total: 5000 unlinks in 76 seconds: 65.789474 unlinks/second
fail_loc=0