== sanity test 60c: unlink file when mds full ============ 20:22:56 (1773102176)
create 5000 files
 - open/close 494 (time 1773102189.86 total 10.02 last 49.30)
 - open/close 947 (time 1773102199.87 total 20.03 last 45.25)
 - open/close 1475 (time 1773102209.87 total 30.03 last 52.78)
 - open/close 1993 (time 1773102219.89 total 40.05 last 51.72)
 - open/close 2497 (time 1773102229.91 total 50.07 last 50.30)
 - open/close 3011 (time 1773102239.92 total 60.09 last 51.33)
 - open/close 3484 (time 1773102249.93 total 70.09 last 47.28)
 - open/close 3971 (time 1773102259.93 total 80.09 last 48.69)
 - open/close 4503 (time 1773102269.93 total 90.09 last 53.18)
total: 5000 open/close in 99.63 seconds: 50.18 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1773102282 ; total 0 ; last 0)
total: 5000 unlinks in 66 seconds: 75.757576 unlinks/second
fail_loc=0